diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/clock.c | 760 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/include/mach/generic.h | 3 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/include/mach/misc_regs.h | 144 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/include/mach/spear.h | 13 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/spear320.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-spear3xx/spear3xx.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-spear6xx/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-spear6xx/clock.c | 683 | ||||
| -rw-r--r-- | arch/arm/mach-spear6xx/include/mach/misc_regs.h | 154 | ||||
| -rw-r--r-- | arch/arm/mach-spear6xx/spear6xx.c | 5 | ||||
| -rw-r--r-- | arch/arm/plat-spear/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-spear/clock.c | 1005 | ||||
| -rw-r--r-- | arch/arm/plat-spear/include/plat/clock.h | 249 | ||||
| -rw-r--r-- | arch/arm/plat-spear/time.c | 8 |
16 files changed, 29 insertions, 3005 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 2095a513a7c0..40ba2d1acde2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -981,6 +981,7 @@ config PLAT_SPEAR select ARM_AMBA select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP + select COMMON_CLK select CLKSRC_MMIO select GENERIC_CLOCKEVENTS select HAVE_CLK diff --git a/arch/arm/mach-spear3xx/Makefile b/arch/arm/mach-spear3xx/Makefile index b24862489704..5b30d0d10892 100644 --- a/arch/arm/mach-spear3xx/Makefile +++ b/arch/arm/mach-spear3xx/Makefile @@ -3,7 +3,7 @@ # # common files -obj-y += spear3xx.o clock.o +obj-y += spear3xx.o # spear300 specific files obj-$(CONFIG_MACH_SPEAR300) += spear300.o diff --git a/arch/arm/mach-spear3xx/clock.c b/arch/arm/mach-spear3xx/clock.c deleted file mode 100644 index 6c4841f55223..000000000000 --- a/arch/arm/mach-spear3xx/clock.c +++ /dev/null @@ -1,760 +0,0 @@ -/* - * arch/arm/mach-spear3xx/clock.c - * - * SPEAr3xx machines clock framework source file - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <asm/mach-types.h> -#include <plat/clock.h> -#include <mach/misc_regs.h> - -/* root clks */ -/* 32 KHz oscillator clock */ -static struct clk osc_32k_clk = { - .flags = ALWAYS_ENABLED, - .rate = 32000, -}; - -/* 24 MHz oscillator clock */ -static struct clk osc_24m_clk = { - .flags = ALWAYS_ENABLED, - .rate = 24000000, -}; - -/* clock derived from 32 KHz osc clk */ -/* rtc clock */ -static struct clk rtc_clk = { - .pclk = &osc_32k_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = RTC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from 24 MHz osc clk */ -/* pll masks structure */ -static struct pll_clk_masks pll1_masks = { - .mode_mask = PLL_MODE_MASK, - .mode_shift = PLL_MODE_SHIFT, - .norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK, - .norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT, - .dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK, - .dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT, - .div_p_mask = PLL_DIV_P_MASK, - .div_p_shift = PLL_DIV_P_SHIFT, - .div_n_mask = PLL_DIV_N_MASK, - .div_n_shift = PLL_DIV_N_SHIFT, -}; - -/* pll1 configuration structure */ -static struct pll_clk_config pll1_config = { - .mode_reg = PLL1_CTR, - .cfg_reg = PLL1_FRQ, - .masks = &pll1_masks, -}; - -/* pll rate configuration table, in ascending order of rates */ -struct pll_rate_tbl pll_rtbl[] = { - {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* 266 MHz */ - {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* 332 MHz */ -}; - -/* PLL1 clock */ -static struct clk pll1_clk = { - .flags = ENABLED_ON_INIT, - .pclk = &osc_24m_clk, - .en_reg = PLL1_CTR, - .en_reg_bit = PLL_ENABLE, - .calc_rate = &pll_calc_rate, - .recalc = &pll_clk_recalc, - .set_rate = &pll_clk_set_rate, - .rate_config = {pll_rtbl, ARRAY_SIZE(pll_rtbl), 1}, - .private_data = &pll1_config, -}; - -/* PLL3 48 MHz clock */ -static struct clk pll3_48m_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_24m_clk, - .rate = 48000000, -}; - -/* watch dog timer clock */ -static struct clk wdt_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_24m_clk, - .recalc = &follow_parent, -}; - -/* clock derived from pll1 clk */ -/* cpu clock */ -static struct clk cpu_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .recalc = &follow_parent, -}; - -/* ahb masks structure */ -static struct bus_clk_masks ahb_masks = { - .mask = PLL_HCLK_RATIO_MASK, - .shift = PLL_HCLK_RATIO_SHIFT, -}; - -/* ahb configuration structure */ -static struct bus_clk_config ahb_config = { - .reg = CORE_CLK_CFG, - .masks = &ahb_masks, -}; - -/* ahb rate configuration table, in ascending order of rates */ -struct bus_rate_tbl bus_rtbl[] = { - {.div = 3}, /* == parent divided by 4 */ - {.div = 2}, /* == parent divided by 3 */ - {.div = 1}, /* == parent divided by 2 */ - {.div = 0}, /* == parent divided by 1 */ -}; - -/* ahb clock */ -static struct clk ahb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &ahb_config, -}; - -/* auxiliary synthesizers masks */ -static struct aux_clk_masks aux_masks = { - .eq_sel_mask = AUX_EQ_SEL_MASK, - .eq_sel_shift = AUX_EQ_SEL_SHIFT, - .eq1_mask = AUX_EQ1_SEL, - .eq2_mask = AUX_EQ2_SEL, - .xscale_sel_mask = AUX_XSCALE_MASK, - .xscale_sel_shift = AUX_XSCALE_SHIFT, - .yscale_sel_mask = AUX_YSCALE_MASK, - .yscale_sel_shift = AUX_YSCALE_SHIFT, -}; - -/* uart synth configurations */ -static struct aux_clk_config uart_synth_config = { - .synth_reg = UART_CLK_SYNT, - .masks = &aux_masks, -}; - -/* aux rate configuration table, in ascending order of rates */ -struct aux_rate_tbl aux_rtbl[] = { - /* For PLL1 = 332 MHz */ - {.xscale = 1, .yscale = 8, .eq = 1}, /* 41.5 MHz */ - {.xscale = 1, .yscale = 4, .eq = 1}, /* 83 MHz */ - {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ -}; - -/* uart synth clock */ -static struct clk uart_synth_clk = { - .en_reg = UART_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 1}, - .private_data = &uart_synth_config, -}; - -/* uart parents */ -static struct pclk_info uart_pclk_info[] = { - { - .pclk = &uart_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* uart parent select structure */ -static struct pclk_sel uart_pclk_sel = { - .pclk_info = uart_pclk_info, - .pclk_count = ARRAY_SIZE(uart_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = UART_CLK_MASK, -}; - -/* uart clock */ -static struct clk uart_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* firda configurations */ -static struct aux_clk_config firda_synth_config = { - .synth_reg = FIRDA_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk firda_synth_clk = { - .en_reg = FIRDA_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 1}, - .private_data = &firda_synth_config, -}; - -/* firda parents */ -static struct pclk_info firda_pclk_info[] = { - { - .pclk = &firda_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* firda parent select structure */ -static struct pclk_sel firda_pclk_sel = { - .pclk_info = firda_pclk_info, - .pclk_count = ARRAY_SIZE(firda_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = FIRDA_CLK_MASK, -}; - -/* firda clock */ -static struct clk firda_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FIRDA_CLK_ENB, - .pclk_sel = &firda_pclk_sel, - .pclk_sel_shift = FIRDA_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt synthesizer masks */ -static struct gpt_clk_masks gpt_masks = { - .mscale_sel_mask = GPT_MSCALE_MASK, - .mscale_sel_shift = GPT_MSCALE_SHIFT, - .nscale_sel_mask = GPT_NSCALE_MASK, - .nscale_sel_shift = GPT_NSCALE_SHIFT, -}; - -/* gpt rate configuration table, in ascending order of rates */ -struct gpt_rate_tbl gpt_rtbl[] = { - /* For pll1 = 332 MHz */ - {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ - {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ - {.mscale = 1, .nscale = 0}, /* 83 MHz */ -}; - -/* gpt0 synth clk config*/ -static struct gpt_clk_config gpt0_synth_config = { - .synth_reg = PRSC1_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt0_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt0_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt0_pclk_info[] = { - { - .pclk = &gpt0_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt0_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt0 timer clock */ -static struct clk gpt0_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt0_pclk_sel, - .pclk_sel_shift = GPT0_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt1 synth clk configurations */ -static struct gpt_clk_config gpt1_synth_config = { - .synth_reg = PRSC2_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt1 synth clock */ -static struct clk gpt1_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt1_synth_config, -}; - -static struct pclk_info gpt1_pclk_info[] = { - { - .pclk = &gpt1_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt1_pclk_sel = { - .pclk_info = gpt1_pclk_info, - .pclk_count = ARRAY_SIZE(gpt1_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt1 timer clock */ -static struct clk gpt1_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPT1_CLK_ENB, - .pclk_sel = &gpt1_pclk_sel, - .pclk_sel_shift = GPT1_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt2 synth clk configurations */ -static struct gpt_clk_config gpt2_synth_config = { - .synth_reg = PRSC3_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt1 synth clock */ -static struct clk gpt2_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt2_synth_config, -}; - -static struct pclk_info gpt2_pclk_info[] = { - { - .pclk = &gpt2_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt2_pclk_sel = { - .pclk_info = gpt2_pclk_info, - .pclk_count = ARRAY_SIZE(gpt2_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt2 timer clock */ -static struct clk gpt2_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPT2_CLK_ENB, - .pclk_sel = &gpt2_pclk_sel, - .pclk_sel_shift = GPT2_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clock derived from pll3 clk */ -/* usbh clock */ -static struct clk usbh_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbd clock */ -static struct clk usbd_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBD_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from ahb clk */ -/* apb masks structure */ -static struct bus_clk_masks apb_masks = { - .mask = HCLK_PCLK_RATIO_MASK, - .shift = HCLK_PCLK_RATIO_SHIFT, -}; - -/* apb configuration structure */ -static struct bus_clk_config apb_config = { - .reg = CORE_CLK_CFG, - .masks = &apb_masks, -}; - -/* apb clock */ -static struct clk apb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &apb_config, -}; - -/* i2c clock */ -static struct clk i2c_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = I2C_CLK_ENB, - .recalc = &follow_parent, -}; - -/* dma clock */ -static struct clk dma_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = DMA_CLK_ENB, - .recalc = &follow_parent, -}; - -/* jpeg clock */ -static struct clk jpeg_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = JPEG_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gmac clock */ -static struct clk gmac_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GMAC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* smi clock */ -static struct clk smi_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SMI_CLK_ENB, - .recalc = &follow_parent, -}; - -/* c3 clock */ -static struct clk c3_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = C3_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from apb clk */ -/* adc clock */ -static struct clk adc_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = ADC_CLK_ENB, - .recalc = &follow_parent, -}; - -#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320) -/* emi clock */ -static struct clk emi_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif - -/* ssp clock */ -static struct clk ssp0_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio clock */ -static struct clk gpio_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO_CLK_ENB, - .recalc = &follow_parent, -}; - -static struct clk dummy_apb_pclk; - -#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR310) || \ - defined(CONFIG_MACH_SPEAR320) -/* fsmc clock */ -static struct clk fsmc_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif - -/* common clocks to spear310 and spear320 */ -#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320) -/* uart1 clock */ -static struct clk uart1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart2 clock */ -static struct clk uart2_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif /* CONFIG_MACH_SPEAR310 || CONFIG_MACH_SPEAR320 */ - -/* common clocks to spear300 and spear320 */ -#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR320) -/* clcd clock */ -static struct clk clcd_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll3_48m_clk, - .recalc = &follow_parent, -}; - -/* sdhci clock */ -static struct clk sdhci_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif /* CONFIG_MACH_SPEAR300 || CONFIG_MACH_SPEAR320 */ - -/* spear300 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR300 -/* gpio1 clock */ -static struct clk gpio1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* keyboard clock */ -static struct clk kbd_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -#endif - -/* spear310 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR310 -/* uart3 clock */ -static struct clk uart3_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart4 clock */ -static struct clk uart4_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart5 clock */ -static struct clk uart5_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif - -/* spear320 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR320 -/* can0 clock */ -static struct clk can0_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* can1 clock */ -static struct clk can1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* i2c1 clock */ -static struct clk i2c1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; - -/* ssp1 clock */ -static struct clk ssp1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* ssp2 clock */ -static struct clk ssp2_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* pwm clock */ -static struct clk pwm_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif - -/* array of all spear 3xx clock lookups */ -static struct clk_lookup spear_clk_lookups[] = { - { .con_id = "apb_pclk", .clk = &dummy_apb_pclk}, - /* root clks */ - { .con_id = "osc_32k_clk", .clk = &osc_32k_clk}, - { .con_id = "osc_24m_clk", .clk = &osc_24m_clk}, - /* clock derived from 32 KHz osc clk */ - { .dev_id = "rtc-spear", .clk = &rtc_clk}, - /* clock derived from 24 MHz osc clk */ - { .con_id = "pll1_clk", .clk = &pll1_clk}, - { .con_id = "pll3_48m_clk", .clk = &pll3_48m_clk}, - { .dev_id = "wdt", .clk = &wdt_clk}, - /* clock derived from pll1 clk */ - { .con_id = "cpu_clk", .clk = &cpu_clk}, - { .con_id = "ahb_clk", .clk = &ahb_clk}, - { .con_id = "uart_synth_clk", .clk = &uart_synth_clk}, - { .con_id = "firda_synth_clk", .clk = &firda_synth_clk}, - { .con_id = "gpt0_synth_clk", .clk = &gpt0_synth_clk}, - { .con_id = "gpt1_synth_clk", .clk = &gpt1_synth_clk}, - { .con_id = "gpt2_synth_clk", .clk = &gpt2_synth_clk}, - { .dev_id = "uart", .clk = &uart_clk}, - { .dev_id = "firda", .clk = &firda_clk}, - { .dev_id = "gpt0", .clk = &gpt0_clk}, - { .dev_id = "gpt1", .clk = &gpt1_clk}, - { .dev_id = "gpt2", .clk = &gpt2_clk}, - /* clock derived from pll3 clk */ - { .dev_id = "designware_udc", .clk = &usbd_clk}, - { .con_id = "usbh_clk", .clk = &usbh_clk}, - /* clock derived from ahb clk */ - { .con_id = "apb_clk", .clk = &apb_clk}, - { .dev_id = "i2c_designware.0", .clk = &i2c_clk}, - { .dev_id = "dma", .clk = &dma_clk}, - { .dev_id = "jpeg", .clk = &jpeg_clk}, - { .dev_id = "gmac", .clk = &gmac_clk}, - { .dev_id = "smi", .clk = &smi_clk}, - { .dev_id = "c3", .clk = &c3_clk}, - /* clock derived from apb clk */ - { .dev_id = "adc", .clk = &adc_clk}, - { .dev_id = "ssp-pl022.0", .clk = &ssp0_clk}, - { .dev_id = "gpio", .clk = &gpio_clk}, -}; - -/* array of all spear 300 clock lookups */ -#ifdef CONFIG_MACH_SPEAR300 -static struct clk_lookup spear300_clk_lookups[] = { - { .dev_id = "clcd", .clk = &clcd_clk}, - { .con_id = "fsmc", .clk = &fsmc_clk}, - { .dev_id = "gpio1", .clk = &gpio1_clk}, - { .dev_id = "keyboard", .clk = &kbd_clk}, - { .dev_id = "sdhci", .clk = &sdhci_clk}, -}; -#endif - -/* array of all spear 310 clock lookups */ -#ifdef CONFIG_MACH_SPEAR310 -static struct clk_lookup spear310_clk_lookups[] = { - { .con_id = "fsmc", .clk = &fsmc_clk}, - { .con_id = "emi", .clk = &emi_clk}, - { .dev_id = "uart1", .clk = &uart1_clk}, - { .dev_id = "uart2", .clk = &uart2_clk}, - { .dev_id = "uart3", .clk = &uart3_clk}, - { .dev_id = "uart4", .clk = &uart4_clk}, - { .dev_id = "uart5", .clk = &uart5_clk}, -}; -#endif - -/* array of all spear 320 clock lookups */ -#ifdef CONFIG_MACH_SPEAR320 -static struct clk_lookup spear320_clk_lookups[] = { - { .dev_id = "clcd", .clk = &clcd_clk}, - { .con_id = "fsmc", .clk = &fsmc_clk}, - { .dev_id = "i2c_designware.1", .clk = &i2c1_clk}, - { .con_id = "emi", .clk = &emi_clk}, - { .dev_id = "pwm", .clk = &pwm_clk}, - { .dev_id = "sdhci", .clk = &sdhci_clk}, - { .dev_id = "c_can_platform.0", .clk = &can0_clk}, - { .dev_id = "c_can_platform.1", .clk = &can1_clk}, - { .dev_id = "ssp-pl022.1", .clk = &ssp1_clk}, - { .dev_id = "ssp-pl022.2", .clk = &ssp2_clk}, - { .dev_id = "uart1", .clk = &uart1_clk}, - { .dev_id = "uart2", .clk = &uart2_clk}, -}; -#endif - -void __init spear3xx_clk_init(void) -{ - int i, cnt; - struct clk_lookup *lookups; - - if (machine_is_spear300()) { - cnt = ARRAY_SIZE(spear300_clk_lookups); - lookups = spear300_clk_lookups; - } else if (machine_is_spear310()) { - cnt = ARRAY_SIZE(spear310_clk_lookups); - lookups = spear310_clk_lookups; - } else { - cnt = ARRAY_SIZE(spear320_clk_lookups); - lookups = spear320_clk_lookups; - } - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - for (i = 0; i < cnt; i++) - clk_register(&lookups[i]); - - clk_init(); -} diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h index 14276e5a98d2..15c107aad202 100644 --- a/arch/arm/mach-spear3xx/include/mach/generic.h +++ b/arch/arm/mach-spear3xx/include/mach/generic.h @@ -36,8 +36,8 @@ extern struct amba_device spear3xx_uart_device; extern struct sys_timer spear3xx_timer; /* Add spear3xx family function declarations here */ -void __init spear3xx_clk_init(void); void __init spear_setup_timer(void); +void __init spear3xx_clk_init(void); void __init spear3xx_map_io(void); void __init spear3xx_init_irq(void); void __init spear3xx_init(void); @@ -156,7 +156,6 @@ extern struct pmx_dev spear310_pmx_tdm0; /* Add spear310 machine function declarations here */ void __init spear310_init(struct pmx_mode *pmx_mode, struct pmx_dev **pmx_devs, u8 pmx_dev_count); - #endif /* CONFIG_MACH_SPEAR310 */ /* spear320 declarations */ diff --git a/arch/arm/mach-spear3xx/include/mach/misc_regs.h b/arch/arm/mach-spear3xx/include/mach/misc_regs.h index 5bd8cd8d4852..50cfe0d1a7c4 100644 --- a/arch/arm/mach-spear3xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear3xx/include/mach/misc_regs.h @@ -15,150 +15,8 @@ #define __MACH_MISC_REGS_H #include <mach/hardware.h> +#include <mach/spear.h> #define MISC_BASE IOMEM(VA_SPEAR3XX_ICM3_MISC_REG_BASE) -#define SOC_CFG_CTR (MISC_BASE + 0x000) -#define DIAG_CFG_CTR (MISC_BASE + 0x004) -#define PLL1_CTR (MISC_BASE + 0x008) -#define PLL1_FRQ (MISC_BASE + 0x00C) -#define PLL1_MOD (MISC_BASE + 0x010) -#define PLL2_CTR (MISC_BASE + 0x014) -/* PLL_CTR register masks */ -#define PLL_ENABLE 2 -#define PLL_MODE_SHIFT 4 -#define PLL_MODE_MASK 0x3 -#define PLL_MODE_NORMAL 0 -#define PLL_MODE_FRACTION 1 -#define PLL_MODE_DITH_DSB 2 -#define PLL_MODE_DITH_SSB 3 - -#define PLL2_FRQ (MISC_BASE + 0x018) -/* PLL FRQ register masks */ -#define PLL_DIV_N_SHIFT 0 -#define PLL_DIV_N_MASK 0xFF -#define PLL_DIV_P_SHIFT 8 -#define PLL_DIV_P_MASK 0x7 -#define PLL_NORM_FDBK_M_SHIFT 24 -#define PLL_NORM_FDBK_M_MASK 0xFF -#define PLL_DITH_FDBK_M_SHIFT 16 -#define PLL_DITH_FDBK_M_MASK 0xFFFF - -#define PLL2_MOD (MISC_BASE + 0x01C) -#define PLL_CLK_CFG (MISC_BASE + 0x020) -#define CORE_CLK_CFG (MISC_BASE + 0x024) -/* CORE CLK CFG register masks */ -#define PLL_HCLK_RATIO_SHIFT 10 -#define PLL_HCLK_RATIO_MASK 0x3 -#define HCLK_PCLK_RATIO_SHIFT 8 -#define HCLK_PCLK_RATIO_MASK 0x3 - -#define PERIP_CLK_CFG (MISC_BASE + 0x028) -/* PERIP_CLK_CFG register masks */ -#define UART_CLK_SHIFT 4 -#define UART_CLK_MASK 0x1 -#define FIRDA_CLK_SHIFT 5 -#define FIRDA_CLK_MASK 0x3 -#define GPT0_CLK_SHIFT 8 -#define GPT1_CLK_SHIFT 11 -#define GPT2_CLK_SHIFT 12 -#define GPT_CLK_MASK 0x1 -#define AUX_CLK_PLL3_VAL 0 -#define AUX_CLK_PLL1_VAL 1 - -#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) -/* PERIP1_CLK_ENB register masks */ -#define UART_CLK_ENB 3 -#define SSP_CLK_ENB 5 -#define I2C_CLK_ENB 7 -#define JPEG_CLK_ENB 8 -#define FIRDA_CLK_ENB 10 -#define GPT1_CLK_ENB 11 -#define GPT2_CLK_ENB 12 -#define ADC_CLK_ENB 15 -#define RTC_CLK_ENB 17 -#define GPIO_CLK_ENB 18 -#define DMA_CLK_ENB 19 -#define SMI_CLK_ENB 21 -#define GMAC_CLK_ENB 23 -#define USBD_CLK_ENB 24 -#define USBH_CLK_ENB 25 -#define C3_CLK_ENB 31 - -#define SOC_CORE_ID (MISC_BASE + 0x030) -#define RAS_CLK_ENB (MISC_BASE + 0x034) -#define PERIP1_SOF_RST (MISC_BASE + 0x038) -/* PERIP1_SOF_RST register masks */ -#define JPEG_SOF_RST 8 - -#define SOC_USER_ID (MISC_BASE + 0x03C) -#define RAS_SOF_RST (MISC_BASE + 0x040) -#define PRSC1_CLK_CFG (MISC_BASE + 0x044) -#define PRSC2_CLK_CFG (MISC_BASE + 0x048) -#define PRSC3_CLK_CFG (MISC_BASE + 0x04C) -/* gpt synthesizer register masks */ -#define GPT_MSCALE_SHIFT 0 -#define GPT_MSCALE_MASK 0xFFF -#define GPT_NSCALE_SHIFT 12 -#define GPT_NSCALE_MASK 0xF - -#define AMEM_CLK_CFG (MISC_BASE + 0x050) -#define EXPI_CLK_CFG (MISC_BASE + 0x054) -#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) -#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) -#define UART_CLK_SYNT (MISC_BASE + 0x064) -#define GMAC_CLK_SYNT (MISC_BASE + 0x068) -#define RAS1_CLK_SYNT (MISC_BASE + 0x06C) -#define RAS2_CLK_SYNT (MISC_BASE + 0x070) -#define RAS3_CLK_SYNT (MISC_BASE + 0x074) -#define RAS4_CLK_SYNT (MISC_BASE + 0x078) -/* aux clk synthesiser register masks for irda to ras4 */ -#define AUX_SYNT_ENB 31 -#define AUX_EQ_SEL_SHIFT 30 -#define AUX_EQ_SEL_MASK 1 -#define AUX_EQ1_SEL 0 -#define AUX_EQ2_SEL 1 -#define AUX_XSCALE_SHIFT 16 -#define AUX_XSCALE_MASK 0xFFF -#define AUX_YSCALE_SHIFT 0 -#define AUX_YSCALE_MASK 0xFFF - -#define ICM1_ARB_CFG (MISC_BASE + 0x07C) -#define ICM2_ARB_CFG (MISC_BASE + 0x080) -#define ICM3_ARB_CFG (MISC_BASE + 0x084) -#define ICM4_ARB_CFG (MISC_BASE + 0x088) -#define ICM5_ARB_CFG (MISC_BASE + 0x08C) -#define ICM6_ARB_CFG (MISC_BASE + 0x090) -#define ICM7_ARB_CFG (MISC_BASE + 0x094) -#define ICM8_ARB_CFG (MISC_BASE + 0x098) -#define ICM9_ARB_CFG (MISC_BASE + 0x09C) -#define DMA_CHN_CFG (MISC_BASE + 0x0A0) -#define USB2_PHY_CFG (MISC_BASE + 0x0A4) -#define GMAC_CFG_CTR (MISC_BASE + 0x0A8) -#define EXPI_CFG_CTR (MISC_BASE + 0x0AC) -#define PRC1_LOCK_CTR (MISC_BASE + 0x0C0) -#define PRC2_LOCK_CTR (MISC_BASE + 0x0C4) -#define PRC3_LOCK_CTR (MISC_BASE + 0x0C8) -#define PRC4_LOCK_CTR (MISC_BASE + 0x0CC) -#define PRC1_IRQ_CTR (MISC_BASE + 0x0D0) -#define PRC2_IRQ_CTR (MISC_BASE + 0x0D4) -#define PRC3_IRQ_CTR (MISC_BASE + 0x0D8) -#define PRC4_IRQ_CTR (MISC_BASE + 0x0DC) -#define PWRDOWN_CFG_CTR (MISC_BASE + 0x0E0) -#define COMPSSTL_1V8_CFG (MISC_BASE + 0x0E4) -#define COMPSSTL_2V5_CFG (MISC_BASE + 0x0E8) -#define COMPCOR_3V3_CFG (MISC_BASE + 0x0EC) -#define SSTLPAD_CFG_CTR (MISC_BASE + 0x0F0) -#define BIST1_CFG_CTR (MISC_BASE + 0x0F4) -#define BIST2_CFG_CTR (MISC_BASE + 0x0F8) -#define BIST3_CFG_CTR (MISC_BASE + 0x0FC) -#define BIST4_CFG_CTR (MISC_BASE + 0x100) -#define BIST5_CFG_CTR (MISC_BASE + 0x104) -#define BIST1_STS_RES (MISC_BASE + 0x108) -#define BIST2_STS_RES (MISC_BASE + 0x10C) -#define BIST3_STS_RES (MISC_BASE + 0x110) -#define BIST4_STS_RES (MISC_BASE + 0x114) -#define BIST5_STS_RES (MISC_BASE + 0x118) -#define SYSERR_CFG_CTR (MISC_BASE + 0x11C) - #endif /* __MACH_MISC_REGS_H */ diff --git a/arch/arm/mach-spear3xx/include/mach/spear.h b/arch/arm/mach-spear3xx/include/mach/spear.h index 63fd98356919..881109522060 100644 --- a/arch/arm/mach-spear3xx/include/mach/spear.h +++ b/arch/arm/mach-spear3xx/include/mach/spear.h @@ -78,4 +78,17 @@ #define SPEAR_SYS_CTRL_BASE SPEAR3XX_ICM3_SYS_CTRL_BASE #define VA_SPEAR_SYS_CTRL_BASE VA_SPEAR3XX_ICM3_SYS_CTRL_BASE +/* SPEAr320 Macros */ +#define SPEAR320_SOC_CONFIG_BASE UL(0xB3000000) +#define VA_SPEAR320_SOC_CONFIG_BASE UL(0xFE000000) +#define SPEAR320_CONTROL_REG IOMEM(VA_SPEAR320_SOC_CONFIG_BASE) +#define SPEAR320_EXT_CTRL_REG IOMEM(VA_SPEAR320_SOC_CONFIG_BASE + 0x0018) + #define SPEAR320_UARTX_PCLK_MASK 0x1 + #define SPEAR320_UART2_PCLK_SHIFT 8 + #define SPEAR320_UART3_PCLK_SHIFT 9 + #define SPEAR320_UART4_PCLK_SHIFT 10 + #define SPEAR320_UART5_PCLK_SHIFT 11 + #define SPEAR320_UART6_PCLK_SHIFT 12 + #define SPEAR320_RS485_PCLK_SHIFT 13 + #endif /* __MACH_SPEAR3XX_H */ diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c index deaaf199612c..bfdad554319c 100644 --- a/arch/arm/mach-spear3xx/spear320.c +++ b/arch/arm/mach-spear3xx/spear320.c @@ -16,6 +16,7 @@ #include <plat/shirq.h> #include <mach/generic.h> #include <mach/hardware.h> +#include <mach/spear.h> /* pad multiplexing support */ /* muxing registers */ diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index b1733c37f209..2625ab9a6c8b 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -511,6 +511,8 @@ static void __init spear3xx_timer_init(void) char pclk_name[] = "pll3_48m_clk"; struct clk *gpt_clk, *pclk; + spear3xx_clk_init(); + /* get the system timer clock */ gpt_clk = clk_get_sys("gpt0", NULL); if (IS_ERR(gpt_clk)) { diff --git a/arch/arm/mach-spear6xx/Makefile b/arch/arm/mach-spear6xx/Makefile index 76e5750552fc..898831d93f37 100644 --- a/arch/arm/mach-spear6xx/Makefile +++ b/arch/arm/mach-spear6xx/Makefile @@ -3,4 +3,4 @@ # # common files -obj-y += clock.o spear6xx.o +obj-y += spear6xx.o diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c deleted file mode 100644 index a86499a8a15f..000000000000 --- a/arch/arm/mach-spear6xx/clock.c +++ /dev/null @@ -1,683 +0,0 @@ -/* - * arch/arm/mach-spear6xx/clock.c - * - * SPEAr6xx machines clock framework source file - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <plat/clock.h> -#include <mach/misc_regs.h> - -/* root clks */ -/* 32 KHz oscillator clock */ -static struct clk osc_32k_clk = { - .flags = ALWAYS_ENABLED, - .rate = 32000, -}; - -/* 30 MHz oscillator clock */ -static struct clk osc_30m_clk = { - .flags = ALWAYS_ENABLED, - .rate = 30000000, -}; - -/* clock derived from 32 KHz osc clk */ -/* rtc clock */ -static struct clk rtc_clk = { - .pclk = &osc_32k_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = RTC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from 30 MHz osc clk */ -/* pll masks structure */ -static struct pll_clk_masks pll1_masks = { - .mode_mask = PLL_MODE_MASK, - .mode_shift = PLL_MODE_SHIFT, - .norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK, - .norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT, - .dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK, - .dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT, - .div_p_mask = PLL_DIV_P_MASK, - .div_p_shift = PLL_DIV_P_SHIFT, - .div_n_mask = PLL_DIV_N_MASK, - .div_n_shift = PLL_DIV_N_SHIFT, -}; - -/* pll1 configuration structure */ -static struct pll_clk_config pll1_config = { - .mode_reg = PLL1_CTR, - .cfg_reg = PLL1_FRQ, - .masks = &pll1_masks, -}; - -/* pll rate configuration table, in ascending order of rates */ -struct pll_rate_tbl pll_rtbl[] = { - {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* 266 MHz */ - {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* 332 MHz */ -}; - -/* PLL1 clock */ -static struct clk pll1_clk = { - .flags = ENABLED_ON_INIT, - .pclk = &osc_30m_clk, - .en_reg = PLL1_CTR, - .en_reg_bit = PLL_ENABLE, - .calc_rate = &pll_calc_rate, - .recalc = &pll_clk_recalc, - .set_rate = &pll_clk_set_rate, - .rate_config = {pll_rtbl, ARRAY_SIZE(pll_rtbl), 1}, - .private_data = &pll1_config, -}; - -/* PLL3 48 MHz clock */ -static struct clk pll3_48m_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_30m_clk, - .rate = 48000000, -}; - -/* watch dog timer clock */ -static struct clk wdt_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_30m_clk, - .recalc = &follow_parent, -}; - -/* clock derived from pll1 clk */ -/* cpu clock */ -static struct clk cpu_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .recalc = &follow_parent, -}; - -/* ahb masks structure */ -static struct bus_clk_masks ahb_masks = { - .mask = PLL_HCLK_RATIO_MASK, - .shift = PLL_HCLK_RATIO_SHIFT, -}; - -/* ahb configuration structure */ -static struct bus_clk_config ahb_config = { - .reg = CORE_CLK_CFG, - .masks = &ahb_masks, -}; - -/* ahb rate configuration table, in ascending order of rates */ -struct bus_rate_tbl bus_rtbl[] = { - {.div = 3}, /* == parent divided by 4 */ - {.div = 2}, /* == parent divided by 3 */ - {.div = 1}, /* == parent divided by 2 */ - {.div = 0}, /* == parent divided by 1 */ -}; - -/* ahb clock */ -static struct clk ahb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &ahb_config, -}; - -/* auxiliary synthesizers masks */ -static struct aux_clk_masks aux_masks = { - .eq_sel_mask = AUX_EQ_SEL_MASK, - .eq_sel_shift = AUX_EQ_SEL_SHIFT, - .eq1_mask = AUX_EQ1_SEL, - .eq2_mask = AUX_EQ2_SEL, - .xscale_sel_mask = AUX_XSCALE_MASK, - .xscale_sel_shift = AUX_XSCALE_SHIFT, - .yscale_sel_mask = AUX_YSCALE_MASK, - .yscale_sel_shift = AUX_YSCALE_SHIFT, -}; - -/* uart configurations */ -static struct aux_clk_config uart_synth_config = { - .synth_reg = UART_CLK_SYNT, - .masks = &aux_masks, -}; - -/* aux rate configuration table, in ascending order of rates */ -struct aux_rate_tbl aux_rtbl[] = { - /* For PLL1 = 332 MHz */ - {.xscale = 1, .yscale = 8, .eq = 1}, /* 41.5 MHz */ - {.xscale = 1, .yscale = 4, .eq = 1}, /* 83 MHz */ - {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ -}; - -/* uart synth clock */ -static struct clk uart_synth_clk = { - .en_reg = UART_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &uart_synth_config, -}; - -/* uart parents */ -static struct pclk_info uart_pclk_info[] = { - { - .pclk = &uart_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* uart parent select structure */ -static struct pclk_sel uart_pclk_sel = { - .pclk_info = uart_pclk_info, - .pclk_count = ARRAY_SIZE(uart_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = UART_CLK_MASK, -}; - -/* uart0 clock */ -static struct clk uart0_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART0_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* uart1 clock */ -static struct clk uart1_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART1_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* firda configurations */ -static struct aux_clk_config firda_synth_config = { - .synth_reg = FIRDA_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk firda_synth_clk = { - .en_reg = FIRDA_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &firda_synth_config, -}; - -/* firda parents */ -static struct pclk_info firda_pclk_info[] = { - { - .pclk = &firda_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* firda parent select structure */ -static struct pclk_sel firda_pclk_sel = { - .pclk_info = firda_pclk_info, - .pclk_count = ARRAY_SIZE(firda_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = FIRDA_CLK_MASK, -}; - -/* firda clock */ -static struct clk firda_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FIRDA_CLK_ENB, - .pclk_sel = &firda_pclk_sel, - .pclk_sel_shift = FIRDA_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clcd configurations */ -static struct aux_clk_config clcd_synth_config = { - .synth_reg = CLCD_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk clcd_synth_clk = { - .en_reg = CLCD_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &clcd_synth_config, -}; - -/* clcd parents */ -static struct pclk_info clcd_pclk_info[] = { - { - .pclk = &clcd_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* clcd parent select structure */ -static struct pclk_sel clcd_pclk_sel = { - .pclk_info = clcd_pclk_info, - .pclk_count = ARRAY_SIZE(clcd_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = CLCD_CLK_MASK, -}; - -/* clcd clock */ -static struct clk clcd_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = CLCD_CLK_ENB, - .pclk_sel = &clcd_pclk_sel, - .pclk_sel_shift = CLCD_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt synthesizer masks */ -static struct gpt_clk_masks gpt_masks = { - .mscale_sel_mask = GPT_MSCALE_MASK, - .mscale_sel_shift = GPT_MSCALE_SHIFT, - .nscale_sel_mask = GPT_NSCALE_MASK, - .nscale_sel_shift = GPT_NSCALE_SHIFT, -}; - -/* gpt rate configuration table, in ascending order of rates */ -struct gpt_rate_tbl gpt_rtbl[] = { - /* For pll1 = 332 MHz */ - {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ - {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ - {.mscale = 1, .nscale = 0}, /* 83 MHz */ -}; - -/* gpt0 synth clk config*/ -static struct gpt_clk_config gpt0_synth_config = { - .synth_reg = PRSC1_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt0_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt0_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt0_pclk_info[] = { - { - .pclk = &gpt0_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt0_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt0 ARM1 subsystem timer clock */ -static struct clk gpt0_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt0_pclk_sel, - .pclk_sel_shift = GPT0_CLK_SHIFT, - .recalc = &follow_parent, -}; - - -/* Note: gpt0 and gpt1 share same parent clocks */ -/* gpt parent select structure */ -static struct pclk_sel gpt1_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt1 timer clock */ -static struct clk gpt1_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt1_pclk_sel, - .pclk_sel_shift = GPT1_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt2 synth clk config*/ -static struct gpt_clk_config gpt2_synth_config = { - .synth_reg = PRSC2_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt2_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt2_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt2_pclk_info[] = { - { - .pclk = &gpt2_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt2_pclk_sel = { - .pclk_info = gpt2_pclk_info, - .pclk_count = ARRAY_SIZE(gpt2_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt2 timer clock */ -static struct clk gpt2_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt2_pclk_sel, - .pclk_sel_shift = GPT2_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt3 synth clk config*/ -static struct gpt_clk_config gpt3_synth_config = { - .synth_reg = PRSC3_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt3_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt3_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt3_pclk_info[] = { - { - .pclk = &gpt3_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt3_pclk_sel = { - .pclk_info = gpt3_pclk_info, - .pclk_count = ARRAY_SIZE(gpt3_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt3 timer clock */ -static struct clk gpt3_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt3_pclk_sel, - .pclk_sel_shift = GPT3_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clock derived from pll3 clk */ -/* usbh0 clock */ -static struct clk usbh0_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH0_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbh1 clock */ -static struct clk usbh1_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbd clock */ -static struct clk usbd_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBD_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from ahb clk */ -/* apb masks structure */ -static struct bus_clk_masks apb_masks = { - .mask = HCLK_PCLK_RATIO_MASK, - .shift = HCLK_PCLK_RATIO_SHIFT, -}; - -/* apb configuration structure */ -static struct bus_clk_config apb_config = { - .reg = CORE_CLK_CFG, - .masks = &apb_masks, -}; - -/* apb clock */ -static struct clk apb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &apb_config, -}; - -/* i2c clock */ -static struct clk i2c_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = I2C_CLK_ENB, - .recalc = &follow_parent, -}; - -/* dma clock */ -static struct clk dma_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = DMA_CLK_ENB, - .recalc = &follow_parent, -}; - -/* jpeg clock */ -static struct clk jpeg_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = JPEG_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gmac clock */ -static struct clk gmac_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GMAC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* smi clock */ -static struct clk smi_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SMI_CLK_ENB, - .recalc = &follow_parent, -}; - -/* fsmc clock */ -static struct clk fsmc_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FSMC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from apb clk */ -/* adc clock */ -static struct clk adc_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = ADC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp0 clock */ -static struct clk ssp0_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP0_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp1 clock */ -static struct clk ssp1_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp2 clock */ -static struct clk ssp2_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP2_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio0 ARM subsystem clock */ -static struct clk gpio0_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* gpio1 clock */ -static struct clk gpio1_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio2 clock */ -static struct clk gpio2_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO2_CLK_ENB, - .recalc = &follow_parent, -}; - -static struct clk dummy_apb_pclk; - -/* array of all spear 6xx clock lookups */ -static struct clk_lookup spear_clk_lookups[] = { - { .con_id = "apb_pclk", .clk = &dummy_apb_pclk}, - /* root clks */ - { .con_id = "osc_32k_clk", .clk = &osc_32k_clk}, - { .con_id = "osc_30m_clk", .clk = &osc_30m_clk}, - /* clock derived from 32 KHz os clk */ - { .dev_id = "rtc-spear", .clk = &rtc_clk}, - /* clock derived from 30 MHz os clk */ - { .con_id = "pll1_clk", .clk = &pll1_clk}, - { .con_id = "pll3_48m_clk", .clk = &pll3_48m_clk}, - { .dev_id = "wdt", .clk = &wdt_clk}, - /* clock derived from pll1 clk */ - { .con_id = "cpu_clk", .clk = &cpu_clk}, - { .con_id = "ahb_clk", .clk = &ahb_clk}, - { .con_id = "uart_synth_clk", .clk = &uart_synth_clk}, - { .con_id = "firda_synth_clk", .clk = &firda_synth_clk}, - { .con_id = "clcd_synth_clk", .clk = &clcd_synth_clk}, - { .con_id = "gpt0_synth_clk", .clk = &gpt0_synth_clk}, - { .con_id = "gpt2_synth_clk", .clk = &gpt2_synth_clk}, - { .con_id = "gpt3_synth_clk", .clk = &gpt3_synth_clk}, - { .dev_id = "d0000000.serial", .clk = &uart0_clk}, - { .dev_id = "d0080000.serial", .clk = &uart1_clk}, - { .dev_id = "firda", .clk = &firda_clk}, - { .dev_id = "clcd", .clk = &clcd_clk}, - { .dev_id = "gpt0", .clk = &gpt0_clk}, - { .dev_id = "gpt1", .clk = &gpt1_clk}, - { .dev_id = "gpt2", .clk = &gpt2_clk}, - { .dev_id = "gpt3", .clk = &gpt3_clk}, - /* clock derived from pll3 clk */ - { .dev_id = "designware_udc", .clk = &usbd_clk}, - { .con_id = "usbh.0_clk", .clk = &usbh0_clk}, - { .con_id = "usbh.1_clk", .clk = &usbh1_clk}, - /* clock derived from ahb clk */ - { .con_id = "apb_clk", .clk = &apb_clk}, - { .dev_id = "d0200000.i2c", .clk = &i2c_clk}, - { .dev_id = "dma", .clk = &dma_clk}, - { .dev_id = "jpeg", .clk = &jpeg_clk}, - { .dev_id = "gmac", .clk = &gmac_clk}, - { .dev_id = "smi", .clk = &smi_clk}, - { .dev_id = "fsmc-nand", .clk = &fsmc_clk}, - /* clock derived from apb clk */ - { .dev_id = "adc", .clk = &adc_clk}, - { .dev_id = "ssp-pl022.0", .clk = &ssp0_clk}, - { .dev_id = "ssp-pl022.1", .clk = &ssp1_clk}, - { .dev_id = "ssp-pl022.2", .clk = &ssp2_clk}, - { .dev_id = "f0100000.gpio", .clk = &gpio0_clk}, - { .dev_id = "fc980000.gpio", .clk = &gpio1_clk}, - { .dev_id = "d8100000.gpio", .clk = &gpio2_clk}, -}; - -void __init spear6xx_clk_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - clk_init(); -} diff --git a/arch/arm/mach-spear6xx/include/mach/misc_regs.h b/arch/arm/mach-spear6xx/include/mach/misc_regs.h index 68c20a007b0d..633074fddf9a 100644 --- a/arch/arm/mach-spear6xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear6xx/include/mach/misc_regs.h @@ -15,160 +15,8 @@ #define __MACH_MISC_REGS_H #include <mach/hardware.h> +#include <mach/spear.h> #define MISC_BASE IOMEM(VA_SPEAR6XX_ICM3_MISC_REG_BASE) -#define SOC_CFG_CTR (MISC_BASE + 0x000) -#define DIAG_CFG_CTR (MISC_BASE + 0x004) -#define PLL1_CTR (MISC_BASE + 0x008) -#define PLL1_FRQ (MISC_BASE + 0x00C) -#define PLL1_MOD (MISC_BASE + 0x010) -#define PLL2_CTR (MISC_BASE + 0x014) -/* PLL_CTR register masks */ -#define PLL_ENABLE 2 -#define PLL_MODE_SHIFT 4 -#define PLL_MODE_MASK 0x3 -#define PLL_MODE_NORMAL 0 -#define PLL_MODE_FRACTION 1 -#define PLL_MODE_DITH_DSB 2 -#define PLL_MODE_DITH_SSB 3 - -#define PLL2_FRQ (MISC_BASE + 0x018) -/* PLL FRQ register masks */ -#define PLL_DIV_N_SHIFT 0 -#define PLL_DIV_N_MASK 0xFF -#define PLL_DIV_P_SHIFT 8 -#define PLL_DIV_P_MASK 0x7 -#define PLL_NORM_FDBK_M_SHIFT 24 -#define PLL_NORM_FDBK_M_MASK 0xFF -#define PLL_DITH_FDBK_M_SHIFT 16 -#define PLL_DITH_FDBK_M_MASK 0xFFFF - -#define PLL2_MOD (MISC_BASE + 0x01C) -#define PLL_CLK_CFG (MISC_BASE + 0x020) -#define CORE_CLK_CFG (MISC_BASE + 0x024) -/* CORE CLK CFG register masks */ -#define PLL_HCLK_RATIO_SHIFT 10 -#define PLL_HCLK_RATIO_MASK 0x3 -#define HCLK_PCLK_RATIO_SHIFT 8 -#define HCLK_PCLK_RATIO_MASK 0x3 - -#define PERIP_CLK_CFG (MISC_BASE + 0x028) -/* PERIP_CLK_CFG register masks */ -#define CLCD_CLK_SHIFT 2 -#define CLCD_CLK_MASK 0x3 -#define UART_CLK_SHIFT 4 -#define UART_CLK_MASK 0x1 -#define FIRDA_CLK_SHIFT 5 -#define FIRDA_CLK_MASK 0x3 -#define GPT0_CLK_SHIFT 8 -#define GPT1_CLK_SHIFT 10 -#define GPT2_CLK_SHIFT 11 -#define GPT3_CLK_SHIFT 12 -#define GPT_CLK_MASK 0x1 -#define AUX_CLK_PLL3_VAL 0 -#define AUX_CLK_PLL1_VAL 1 - -#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) -/* PERIP1_CLK_ENB register masks */ -#define UART0_CLK_ENB 3 -#define UART1_CLK_ENB 4 -#define SSP0_CLK_ENB 5 -#define SSP1_CLK_ENB 6 -#define I2C_CLK_ENB 7 -#define JPEG_CLK_ENB 8 -#define FSMC_CLK_ENB 9 -#define FIRDA_CLK_ENB 10 -#define GPT2_CLK_ENB 11 -#define GPT3_CLK_ENB 12 -#define GPIO2_CLK_ENB 13 -#define SSP2_CLK_ENB 14 -#define ADC_CLK_ENB 15 -#define GPT1_CLK_ENB 11 -#define RTC_CLK_ENB 17 -#define GPIO1_CLK_ENB 18 -#define DMA_CLK_ENB 19 -#define SMI_CLK_ENB 21 -#define CLCD_CLK_ENB 22 -#define GMAC_CLK_ENB 23 -#define USBD_CLK_ENB 24 -#define USBH0_CLK_ENB 25 -#define USBH1_CLK_ENB 26 - -#define SOC_CORE_ID (MISC_BASE + 0x030) -#define RAS_CLK_ENB (MISC_BASE + 0x034) -#define PERIP1_SOF_RST (MISC_BASE + 0x038) -/* PERIP1_SOF_RST register masks */ -#define JPEG_SOF_RST 8 - -#define SOC_USER_ID (MISC_BASE + 0x03C) -#define RAS_SOF_RST (MISC_BASE + 0x040) -#define PRSC1_CLK_CFG (MISC_BASE + 0x044) -#define PRSC2_CLK_CFG (MISC_BASE + 0x048) -#define PRSC3_CLK_CFG (MISC_BASE + 0x04C) -/* gpt synthesizer register masks */ -#define GPT_MSCALE_SHIFT 0 -#define GPT_MSCALE_MASK 0xFFF -#define GPT_NSCALE_SHIFT 12 -#define GPT_NSCALE_MASK 0xF - -#define AMEM_CLK_CFG (MISC_BASE + 0x050) -#define EXPI_CLK_CFG (MISC_BASE + 0x054) -#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) -#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) -#define UART_CLK_SYNT (MISC_BASE + 0x064) -#define GMAC_CLK_SYNT (MISC_BASE + 0x068) -#define RAS1_CLK_SYNT (MISC_BASE + 0x06C) -#define RAS2_CLK_SYNT (MISC_BASE + 0x070) -#define RAS3_CLK_SYNT (MISC_BASE + 0x074) -#define RAS4_CLK_SYNT (MISC_BASE + 0x078) -/* aux clk synthesiser register masks for irda to ras4 */ -#define AUX_SYNT_ENB 31 -#define AUX_EQ_SEL_SHIFT 30 -#define AUX_EQ_SEL_MASK 1 -#define AUX_EQ1_SEL 0 -#define AUX_EQ2_SEL 1 -#define AUX_XSCALE_SHIFT 16 -#define AUX_XSCALE_MASK 0xFFF -#define AUX_YSCALE_SHIFT 0 -#define AUX_YSCALE_MASK 0xFFF - -#define ICM1_ARB_CFG (MISC_BASE + 0x07C) -#define ICM2_ARB_CFG (MISC_BASE + 0x080) -#define ICM3_ARB_CFG (MISC_BASE + 0x084) -#define ICM4_ARB_CFG (MISC_BASE + 0x088) -#define ICM5_ARB_CFG (MISC_BASE + 0x08C) -#define ICM6_ARB_CFG (MISC_BASE + 0x090) -#define ICM7_ARB_CFG (MISC_BASE + 0x094) -#define ICM8_ARB_CFG (MISC_BASE + 0x098) -#define ICM9_ARB_CFG (MISC_BASE + 0x09C) -#define DMA_CHN_CFG (MISC_BASE + 0x0A0) -#define USB2_PHY_CFG (MISC_BASE + 0x0A4) -#define GMAC_CFG_CTR (MISC_BASE + 0x0A8) -#define EXPI_CFG_CTR (MISC_BASE + 0x0AC) -#define PRC1_LOCK_CTR (MISC_BASE + 0x0C0) -#define PRC2_LOCK_CTR (MISC_BASE + 0x0C4) -#define PRC3_LOCK_CTR (MISC_BASE + 0x0C8) -#define PRC4_LOCK_CTR (MISC_BASE + 0x0CC) -#define PRC1_IRQ_CTR (MISC_BASE + 0x0D0) -#define PRC2_IRQ_CTR (MISC_BASE + 0x0D4) -#define PRC3_IRQ_CTR (MISC_BASE + 0x0D8) -#define PRC4_IRQ_CTR (MISC_BASE + 0x0DC) -#define PWRDOWN_CFG_CTR (MISC_BASE + 0x0E0) -#define COMPSSTL_1V8_CFG (MISC_BASE + 0x0E4) -#define COMPSSTL_2V5_CFG (MISC_BASE + 0x0E8) -#define COMPCOR_3V3_CFG (MISC_BASE + 0x0EC) -#define SSTLPAD_CFG_CTR (MISC_BASE + 0x0F0) -#define BIST1_CFG_CTR (MISC_BASE + 0x0F4) -#define BIST2_CFG_CTR (MISC_BASE + 0x0F8) -#define BIST3_CFG_CTR (MISC_BASE + 0x0FC) -#define BIST4_CFG_CTR (MISC_BASE + 0x100) -#define BIST5_CFG_CTR (MISC_BASE + 0x104) -#define BIST1_STS_RES (MISC_BASE + 0x108) -#define BIST2_STS_RES (MISC_BASE + 0x10C) -#define BIST3_STS_RES (MISC_BASE + 0x110) -#define BIST4_STS_RES (MISC_BASE + 0x114) -#define BIST5_STS_RES (MISC_BASE + 0x118) -#define SYSERR_CFG_CTR (MISC_BASE + 0x11C) - #endif /* __MACH_MISC_REGS_H */ diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c index 2ed8b14c82c8..771e19e3c43c 100644 --- a/arch/arm/mach-spear6xx/spear6xx.c +++ b/arch/arm/mach-spear6xx/spear6xx.c @@ -56,9 +56,6 @@ static struct map_desc spear6xx_io_desc[] __initdata = { void __init spear6xx_map_io(void) { iotable_init(spear6xx_io_desc, ARRAY_SIZE(spear6xx_io_desc)); - - /* This will initialize clock framework */ - spear6xx_clk_init(); } static void __init spear6xx_timer_init(void) @@ -66,6 +63,8 @@ static void __init spear6xx_timer_init(void) char pclk_name[] = "pll3_48m_clk"; struct clk *gpt_clk, *pclk; + spear6xx_clk_init(); + /* get the system timer clock */ gpt_clk = clk_get_sys("gpt0", NULL); if (IS_ERR(gpt_clk)) { diff --git a/arch/arm/plat-spear/Makefile b/arch/arm/plat-spear/Makefile index e0f2e5b9530c..8c0cb6a965a3 100644 --- a/arch/arm/plat-spear/Makefile +++ b/arch/arm/plat-spear/Makefile @@ -3,6 +3,6 @@ # # Common support -obj-y := clock.o restart.o time.o +obj-y := restart.o time.o obj-$(CONFIG_ARCH_SPEAR3XX) += shirq.o padmux.o diff --git a/arch/arm/plat-spear/clock.c b/arch/arm/plat-spear/clock.c deleted file mode 100644 index 67dd00381ea6..000000000000 --- a/arch/arm/plat-spear/clock.c +++ /dev/null @@ -1,1005 +0,0 @@ -/* - * arch/arm/plat-spear/clock.c - * - * Clock framework for SPEAr platform - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/bug.h> -#include <linux/clk.h> -#include <linux/debugfs.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/spinlock.h> -#include <plat/clock.h> - -static DEFINE_SPINLOCK(clocks_lock); -static LIST_HEAD(root_clks); -#ifdef CONFIG_DEBUG_FS -static LIST_HEAD(clocks); -#endif - -static void propagate_rate(struct clk *, int on_init); -#ifdef CONFIG_DEBUG_FS -static int clk_debugfs_reparent(struct clk *); -#endif - -static int generic_clk_enable(struct clk *clk) -{ - unsigned int val; - - if (!clk->en_reg) - return -EFAULT; - - val = readl(clk->en_reg); - if (unlikely(clk->flags & RESET_TO_ENABLE)) - val &= ~(1 << clk->en_reg_bit); - else - val |= 1 << clk->en_reg_bit; - - writel(val, clk->en_reg); - - return 0; -} - -static void generic_clk_disable(struct clk *clk) -{ - unsigned int val; - - if (!clk->en_reg) - return; - - val = readl(clk->en_reg); - if (unlikely(clk->flags & RESET_TO_ENABLE)) - val |= 1 << clk->en_reg_bit; - else - val &= ~(1 << clk->en_reg_bit); - - writel(val, clk->en_reg); -} - -/* generic clk ops */ -static struct clkops generic_clkops = { - .enable = generic_clk_enable, - .disable = generic_clk_disable, -}; - -/* returns current programmed clocks clock info structure */ -static struct pclk_info *pclk_info_get(struct clk *clk) -{ - unsigned int val, i; - struct pclk_info *info = NULL; - - val = (readl(clk->pclk_sel->pclk_sel_reg) >> clk->pclk_sel_shift) - & clk->pclk_sel->pclk_sel_mask; - - for (i = 0; i < clk->pclk_sel->pclk_count; i++) { - if (clk->pclk_sel->pclk_info[i].pclk_val == val) - info = &clk->pclk_sel->pclk_info[i]; - } - - return info; -} - -/* - * Set Update pclk, and pclk_info of clk and add clock sibling node to current - * parents children list - */ -static void clk_reparent(struct clk *clk, struct pclk_info *pclk_info) -{ - unsigned long flags; - - spin_lock_irqsave(&clocks_lock, flags); - list_del(&clk->sibling); - list_add(&clk->sibling, &pclk_info->pclk->children); - - clk->pclk = pclk_info->pclk; - spin_unlock_irqrestore(&clocks_lock, flags); - -#ifdef CONFIG_DEBUG_FS - clk_debugfs_reparent(clk); -#endif -} - -static void do_clk_disable(struct clk *clk) -{ - if (!clk) - return; - - if (!clk->usage_count) { - WARN_ON(1); - return; - } - - clk->usage_count--; - - if (clk->usage_count == 0) { - /* - * Surely, there are no active childrens or direct users - * of this clock - */ - if (clk->pclk) - do_clk_disable(clk->pclk); - - if (clk->ops && clk->ops->disable) - clk->ops->disable(clk); - } -} - -static int do_clk_enable(struct clk *clk) -{ - int ret = 0; - - if (!clk) - return -EFAULT; - - if (clk->usage_count == 0) { - if (clk->pclk) { - ret = do_clk_enable(clk->pclk); - if (ret) - goto err; - } - if (clk->ops && clk->ops->enable) { - ret = clk->ops->enable(clk); - if (ret) { - if (clk->pclk) - do_clk_disable(clk->pclk); - goto err; - } - } - /* - * Since the clock is going to be used for the first - * time please reclac - */ - if (clk->recalc) { - ret = clk->recalc(clk); - if (ret) - goto err; - } - } - clk->usage_count++; -err: - return ret; -} - -/* - * clk_enable - inform the system when the clock source should be running. - * @clk: clock source - * - * If the clock can not be enabled/disabled, this should return success. - * - * Returns success (0) or negative errno. - */ -int clk_enable(struct clk *clk) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&clocks_lock, flags); - ret = do_clk_enable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); - return ret; -} -EXPORT_SYMBOL(clk_enable); - -/* - * clk_disable - inform the system when the clock source is no longer required. - * @clk: clock source - * - * Inform the system that a clock source is no longer required by - * a driver and may be shut down. - * - * Implementation detail: if the clock source is shared between - * multiple drivers, clk_enable() calls must be balanced by the - * same number of clk_disable() calls for the clock source to be - * disabled. - */ -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - spin_lock_irqsave(&clocks_lock, flags); - do_clk_disable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); -} -EXPORT_SYMBOL(clk_disable); - -/** - * clk_get_rate - obtain the current clock rate (in Hz) for a clock source. - * This is only valid once the clock source has been enabled. - * @clk: clock source - */ -unsigned long clk_get_rate(struct clk *clk) -{ - unsigned long flags, rate; - - spin_lock_irqsave(&clocks_lock, flags); - rate = clk->rate; - spin_unlock_irqrestore(&clocks_lock, flags); - - return rate; -} -EXPORT_SYMBOL(clk_get_rate); - -/** - * clk_set_parent - set the parent clock source for this clock - * @clk: clock source - * @parent: parent clock source - * - * Returns success (0) or negative errno. - */ -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - int i, found = 0, val = 0; - unsigned long flags; - - if (!clk || !parent) - return -EFAULT; - if (clk->pclk == parent) - return 0; - if (!clk->pclk_sel) - return -EPERM; - - /* check if requested parent is in clk parent list */ - for (i = 0; i < clk->pclk_sel->pclk_count; i++) { - if (clk->pclk_sel->pclk_info[i].pclk == parent) { - found = 1; - break; - } - } - - if (!found) - return -EINVAL; - - spin_lock_irqsave(&clocks_lock, flags); - /* reflect parent change in hardware */ - val = readl(clk->pclk_sel->pclk_sel_reg); - val &= ~(clk->pclk_sel->pclk_sel_mask << clk->pclk_sel_shift); - val |= clk->pclk_sel->pclk_info[i].pclk_val << clk->pclk_sel_shift; - writel(val, clk->pclk_sel->pclk_sel_reg); - spin_unlock_irqrestore(&clocks_lock, flags); - - /* reflect parent change in software */ - clk_reparent(clk, &clk->pclk_sel->pclk_info[i]); - - propagate_rate(clk, 0); - return 0; -} -EXPORT_SYMBOL(clk_set_parent); - -/** - * clk_set_rate - set the clock rate for a clock source - * @clk: clock source - * @rate: desired clock rate in Hz - * - * Returns success (0) or negative errno. - */ -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned long flags; - int ret = -EINVAL; - - if (!clk || !rate) - return -EFAULT; - - if (clk->set_rate) { - spin_lock_irqsave(&clocks_lock, flags); - ret = clk->set_rate(clk, rate); - if (!ret) - /* if successful -> propagate */ - propagate_rate(clk, 0); - spin_unlock_irqrestore(&clocks_lock, flags); - } else if (clk->pclk) { - u32 mult = clk->div_factor ? clk->div_factor : 1; - ret = clk_set_rate(clk->pclk, mult * rate); - } - - return ret; -} -EXPORT_SYMBOL(clk_set_rate); - -/* registers clock in platform clock framework */ -void clk_register(struct clk_lookup *cl) -{ - struct clk *clk; - unsigned long flags; - - if (!cl || !cl->clk) - return; - clk = cl->clk; - - spin_lock_irqsave(&clocks_lock, flags); - - INIT_LIST_HEAD(&clk->children); - if (clk->flags & ALWAYS_ENABLED) - clk->ops = NULL; - else if (!clk->ops) - clk->ops = &generic_clkops; - - /* root clock don't have any parents */ - if (!clk->pclk && !clk->pclk_sel) { - list_add(&clk->sibling, &root_clks); - } else if (clk->pclk && !clk->pclk_sel) { - /* add clocks with only one parent to parent's children list */ - list_add(&clk->sibling, &clk->pclk->children); - } else { - /* clocks with more than one parent */ - struct pclk_info *pclk_info; - - pclk_info = pclk_info_get(clk); - if (!pclk_info) { - pr_err("CLKDEV: invalid pclk info of clk with" - " %s dev_id and %s con_id\n", - cl->dev_id, cl->con_id); - } else { - clk->pclk = pclk_info->pclk; - list_add(&clk->sibling, &pclk_info->pclk->children); - } - } - - spin_unlock_irqrestore(&clocks_lock, flags); - - /* debugfs specific */ -#ifdef CONFIG_DEBUG_FS - list_add(&clk->node, &clocks); - clk->cl = cl; -#endif - - /* add clock to arm clockdev framework */ - clkdev_add(cl); -} - -/** - * propagate_rate - recalculate and propagate all clocks to children - * @pclk: parent clock required to be propogated - * @on_init: flag for enabling clocks which are ENABLED_ON_INIT. - * - * Recalculates all children clocks - */ -void propagate_rate(struct clk *pclk, int on_init) -{ - struct clk *clk, *_temp; - int ret = 0; - - list_for_each_entry_safe(clk, _temp, &pclk->children, sibling) { - if (clk->recalc) { - ret = clk->recalc(clk); - /* - * recalc will return error if clk out is not programmed - * In this case configure default rate. - */ - if (ret && clk->set_rate) - clk->set_rate(clk, 0); - } - propagate_rate(clk, on_init); - - if (!on_init) - continue; - - /* Enable clks enabled on init, in software view */ - if (clk->flags & ENABLED_ON_INIT) - do_clk_enable(clk); - } -} - -/** - * round_rate_index - return closest programmable rate index in rate_config tbl - * @clk: ptr to clock structure - * @drate: desired rate - * @rate: final rate will be returned in this variable only. - * - * Finds index in rate_config for highest clk rate which is less than - * requested rate. If there is no clk rate lesser than requested rate then - * -EINVAL is returned. This routine assumes that rate_config is written - * in incrementing order of clk rates. - * If drate passed is zero then default rate is programmed. - */ -static int -round_rate_index(struct clk *clk, unsigned long drate, unsigned long *rate) -{ - unsigned long tmp = 0, prev_rate = 0; - int index; - - if (!clk->calc_rate) - return -EFAULT; - - if (!drate) - return -EINVAL; - - /* - * This loops ends on two conditions: - * - as soon as clk is found with rate greater than requested rate. - * - if all clks in rate_config are smaller than requested rate. - */ - for (index = 0; index < clk->rate_config.count; index++) { - prev_rate = tmp; - tmp = clk->calc_rate(clk, index); - if (drate < tmp) { - index--; - break; - } - } - /* return if can't find suitable clock */ - if (index < 0) { - index = -EINVAL; - *rate = 0; - } else if (index == clk->rate_config.count) { - /* program with highest clk rate possible */ - index = clk->rate_config.count - 1; - *rate = tmp; - } else - *rate = prev_rate; - - return index; -} - -/** - * clk_round_rate - adjust a rate to the exact rate a clock can provide - * @clk: clock source - * @rate: desired clock rate in Hz - * - * Returns rounded clock rate in Hz, or negative errno. - */ -long clk_round_rate(struct clk *clk, unsigned long drate) -{ - long rate = 0; - int index; - - /* - * propagate call to parent who supports calc_rate. Similar approach is - * used in clk_set_rate. - */ - if (!clk->calc_rate) { - u32 mult; - if (!clk->pclk) - return clk->rate; - - mult = clk->div_factor ? clk->div_factor : 1; - return clk_round_rate(clk->pclk, mult * drate) / mult; - } - - index = round_rate_index(clk, drate, &rate); - if (index >= 0) - return rate; - else - return index; -} -EXPORT_SYMBOL(clk_round_rate); - -/*All below functions are called with lock held */ - -/* - * Calculates pll clk rate for specific value of mode, m, n and p - * - * In normal mode - * rate = (2 * M[15:8] * Fin)/(N * 2^P) - * - * In Dithered mode - * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P) - */ -unsigned long pll_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct pll_rate_tbl *tbls = clk->rate_config.tbls; - unsigned int mode; - - mode = tbls[index].mode ? 256 : 1; - return (((2 * rate / 10000) * tbls[index].m) / - (mode * tbls[index].n * (1 << tbls[index].p))) * 10000; -} - -/* - * calculates current programmed rate of pll1 - * - * In normal mode - * rate = (2 * M[15:8] * Fin)/(N * 2^P) - * - * In Dithered mode - * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P) - */ -int pll_clk_recalc(struct clk *clk) -{ - struct pll_clk_config *config = clk->private_data; - unsigned int num = 2, den = 0, val, mode = 0; - - mode = (readl(config->mode_reg) >> config->masks->mode_shift) & - config->masks->mode_mask; - - val = readl(config->cfg_reg); - /* calculate denominator */ - den = (val >> config->masks->div_p_shift) & config->masks->div_p_mask; - den = 1 << den; - den *= (val >> config->masks->div_n_shift) & config->masks->div_n_mask; - - /* calculate numerator & denominator */ - if (!mode) { - /* Normal mode */ - num *= (val >> config->masks->norm_fdbk_m_shift) & - config->masks->norm_fdbk_m_mask; - } else { - /* Dithered mode */ - num *= (val >> config->masks->dith_fdbk_m_shift) & - config->masks->dith_fdbk_m_mask; - den *= 256; - } - - if (!den) - return -EINVAL; - - clk->rate = (((clk->pclk->rate/10000) * num) / den) * 10000; - return 0; -} - -/* - * Configures new clock rate of pll - */ -int pll_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct pll_rate_tbl *tbls = clk->rate_config.tbls; - struct pll_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->mode_reg) & - ~(config->masks->mode_mask << config->masks->mode_shift); - val |= (tbls[i].mode & config->masks->mode_mask) << - config->masks->mode_shift; - writel(val, config->mode_reg); - - val = readl(config->cfg_reg) & - ~(config->masks->div_p_mask << config->masks->div_p_shift); - val |= (tbls[i].p & config->masks->div_p_mask) << - config->masks->div_p_shift; - val &= ~(config->masks->div_n_mask << config->masks->div_n_shift); - val |= (tbls[i].n & config->masks->div_n_mask) << - config->masks->div_n_shift; - val &= ~(config->masks->dith_fdbk_m_mask << - config->masks->dith_fdbk_m_shift); - if (tbls[i].mode) - val |= (tbls[i].m & config->masks->dith_fdbk_m_mask) << - config->masks->dith_fdbk_m_shift; - else - val |= (tbls[i].m & config->masks->norm_fdbk_m_mask) << - config->masks->norm_fdbk_m_shift; - - writel(val, config->cfg_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates ahb, apb clk rate for specific value of div - */ -unsigned long bus_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct bus_rate_tbl *tbls = clk->rate_config.tbls; - - return rate / (tbls[index].div + 1); -} - -/* calculates current programmed rate of ahb or apb bus */ -int bus_clk_recalc(struct clk *clk) -{ - struct bus_clk_config *config = clk->private_data; - unsigned int div; - - div = ((readl(config->reg) >> config->masks->shift) & - config->masks->mask) + 1; - - if (!div) - return -EINVAL; - - clk->rate = (unsigned long)clk->pclk->rate / div; - return 0; -} - -/* Configures new clock rate of AHB OR APB bus */ -int bus_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct bus_rate_tbl *tbls = clk->rate_config.tbls; - struct bus_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->reg) & - ~(config->masks->mask << config->masks->shift); - val |= (tbls[i].div & config->masks->mask) << config->masks->shift; - writel(val, config->reg); - - clk->rate = rate; - - return 0; -} - -/* - * gives rate for different values of eq, x and y - * - * Fout from synthesizer can be given from two equations: - * Fout1 = (Fin * X/Y)/2 EQ1 - * Fout2 = Fin * X/Y EQ2 - */ -unsigned long aux_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct aux_rate_tbl *tbls = clk->rate_config.tbls; - u8 eq = tbls[index].eq ? 1 : 2; - - return (((rate/10000) * tbls[index].xscale) / - (tbls[index].yscale * eq)) * 10000; -} - -/* - * calculates current programmed rate of auxiliary synthesizers - * used by: UART, FIRDA - * - * Fout from synthesizer can be given from two equations: - * Fout1 = (Fin * X/Y)/2 - * Fout2 = Fin * X/Y - * - * Selection of eqn 1 or 2 is programmed in register - */ -int aux_clk_recalc(struct clk *clk) -{ - struct aux_clk_config *config = clk->private_data; - unsigned int num = 1, den = 1, val, eqn; - - val = readl(config->synth_reg); - - eqn = (val >> config->masks->eq_sel_shift) & - config->masks->eq_sel_mask; - if (eqn == config->masks->eq1_mask) - den *= 2; - - /* calculate numerator */ - num = (val >> config->masks->xscale_sel_shift) & - config->masks->xscale_sel_mask; - - /* calculate denominator */ - den *= (val >> config->masks->yscale_sel_shift) & - config->masks->yscale_sel_mask; - - if (!den) - return -EINVAL; - - clk->rate = (((clk->pclk->rate/10000) * num) / den) * 10000; - return 0; -} - -/* Configures new clock rate of auxiliary synthesizers used by: UART, FIRDA*/ -int aux_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct aux_rate_tbl *tbls = clk->rate_config.tbls; - struct aux_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & - ~(config->masks->eq_sel_mask << config->masks->eq_sel_shift); - val |= (tbls[i].eq & config->masks->eq_sel_mask) << - config->masks->eq_sel_shift; - val &= ~(config->masks->xscale_sel_mask << - config->masks->xscale_sel_shift); - val |= (tbls[i].xscale & config->masks->xscale_sel_mask) << - config->masks->xscale_sel_shift; - val &= ~(config->masks->yscale_sel_mask << - config->masks->yscale_sel_shift); - val |= (tbls[i].yscale & config->masks->yscale_sel_mask) << - config->masks->yscale_sel_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates gpt clk rate for different values of mscale and nscale - * - * Fout= Fin/((2 ^ (N+1)) * (M+1)) - */ -unsigned long gpt_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct gpt_rate_tbl *tbls = clk->rate_config.tbls; - - return rate / ((1 << (tbls[index].nscale + 1)) * - (tbls[index].mscale + 1)); -} - -/* - * calculates current programmed rate of gpt synthesizers - * Fout from synthesizer can be given from below equations: - * Fout= Fin/((2 ^ (N+1)) * (M+1)) - */ -int gpt_clk_recalc(struct clk *clk) -{ - struct gpt_clk_config *config = clk->private_data; - unsigned int div = 1, val; - - val = readl(config->synth_reg); - div += (val >> config->masks->mscale_sel_shift) & - config->masks->mscale_sel_mask; - div *= 1 << (((val >> config->masks->nscale_sel_shift) & - config->masks->nscale_sel_mask) + 1); - - if (!div) - return -EINVAL; - - clk->rate = (unsigned long)clk->pclk->rate / div; - return 0; -} - -/* Configures new clock rate of gptiliary synthesizers used by: UART, FIRDA*/ -int gpt_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct gpt_rate_tbl *tbls = clk->rate_config.tbls; - struct gpt_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & ~(config->masks->mscale_sel_mask << - config->masks->mscale_sel_shift); - val |= (tbls[i].mscale & config->masks->mscale_sel_mask) << - config->masks->mscale_sel_shift; - val &= ~(config->masks->nscale_sel_mask << - config->masks->nscale_sel_shift); - val |= (tbls[i].nscale & config->masks->nscale_sel_mask) << - config->masks->nscale_sel_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates clcd clk rate for different values of div - * - * Fout from synthesizer can be given from below equation: - * Fout= Fin/2*div (division factor) - * div is 17 bits:- - * 0-13 (fractional part) - * 14-16 (integer part) - * To calculate Fout we left shift val by 14 bits and divide Fin by - * complete div (including fractional part) and then right shift the - * result by 14 places. - */ -unsigned long clcd_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct clcd_rate_tbl *tbls = clk->rate_config.tbls; - - rate /= 1000; - rate <<= 12; - rate /= (2 * tbls[index].div); - rate >>= 12; - rate *= 1000; - - return rate; -} - -/* - * calculates current programmed rate of clcd synthesizer - * Fout from synthesizer can be given from below equation: - * Fout= Fin/2*div (division factor) - * div is 17 bits:- - * 0-13 (fractional part) - * 14-16 (integer part) - * To calculate Fout we left shift val by 14 bits and divide Fin by - * complete div (including fractional part) and then right shift the - * result by 14 places. - */ -int clcd_clk_recalc(struct clk *clk) -{ - struct clcd_clk_config *config = clk->private_data; - unsigned int div = 1; - unsigned long prate; - unsigned int val; - - val = readl(config->synth_reg); - div = (val >> config->masks->div_factor_shift) & - config->masks->div_factor_mask; - - if (!div) - return -EINVAL; - - prate = clk->pclk->rate / 1000; /* first level division, make it KHz */ - - clk->rate = (((unsigned long)prate << 12) / (2 * div)) >> 12; - clk->rate *= 1000; - return 0; -} - -/* Configures new clock rate of auxiliary synthesizers used by: UART, FIRDA*/ -int clcd_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct clcd_rate_tbl *tbls = clk->rate_config.tbls; - struct clcd_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & ~(config->masks->div_factor_mask << - config->masks->div_factor_shift); - val |= (tbls[i].div & config->masks->div_factor_mask) << - config->masks->div_factor_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Used for clocks that always have value as the parent clock divided by a - * fixed divisor - */ -int follow_parent(struct clk *clk) -{ - unsigned int div_factor = (clk->div_factor < 1) ? 1 : clk->div_factor; - - clk->rate = clk->pclk->rate/div_factor; - return 0; -} - -/** - * recalc_root_clocks - recalculate and propagate all root clocks - * - * Recalculates all root clocks (clocks with no parent), which if the - * clock's .recalc is set correctly, should also propagate their rates. - */ -void recalc_root_clocks(void) -{ - struct clk *pclk; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&clocks_lock, flags); - list_for_each_entry(pclk, &root_clks, sibling) { - if (pclk->recalc) { - ret = pclk->recalc(pclk); - /* - * recalc will return error if clk out is not programmed - * In this case configure default clock. - */ - if (ret && pclk->set_rate) - pclk->set_rate(pclk, 0); - } - propagate_rate(pclk, 1); - /* Enable clks enabled on init, in software view */ - if (pclk->flags & ENABLED_ON_INIT) - do_clk_enable(pclk); - } - spin_unlock_irqrestore(&clocks_lock, flags); -} - -void __init clk_init(void) -{ - recalc_root_clocks(); -} - -#ifdef CONFIG_DEBUG_FS -/* - * debugfs support to trace clock tree hierarchy and attributes - */ -static struct dentry *clk_debugfs_root; -static int clk_debugfs_register_one(struct clk *c) -{ - int err; - struct dentry *d; - struct clk *pa = c->pclk; - char s[255]; - char *p = s; - - if (c) { - if (c->cl->con_id) - p += sprintf(p, "%s", c->cl->con_id); - if (c->cl->dev_id) - p += sprintf(p, "%s", c->cl->dev_id); - } - d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root); - if (!d) - return -ENOMEM; - c->dent = d; - - d = debugfs_create_u32("usage_count", S_IRUGO, c->dent, - (u32 *)&c->usage_count); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); - if (!d) { - err = -ENOMEM; - goto err_out; - } - return 0; - -err_out: - debugfs_remove_recursive(c->dent); - return err; -} - -static int clk_debugfs_register(struct clk *c) -{ - int err; - struct clk *pa = c->pclk; - - if (pa && !pa->dent) { - err = clk_debugfs_register(pa); - if (err) - return err; - } - - if (!c->dent) { - err = clk_debugfs_register_one(c); - if (err) - return err; - } - return 0; -} - -static int __init clk_debugfs_init(void) -{ - struct clk *c; - struct dentry *d; - int err; - - d = debugfs_create_dir("clock", NULL); - if (!d) - return -ENOMEM; - clk_debugfs_root = d; - - list_for_each_entry(c, &clocks, node) { - err = clk_debugfs_register(c); - if (err) - goto err_out; - } - return 0; -err_out: - debugfs_remove_recursive(clk_debugfs_root); - return err; -} -late_initcall(clk_debugfs_init); - -static int clk_debugfs_reparent(struct clk *c) -{ - debugfs_remove(c->dent); - return clk_debugfs_register_one(c); -} -#endif /* CONFIG_DEBUG_FS */ diff --git a/arch/arm/plat-spear/include/plat/clock.h b/arch/arm/plat-spear/include/plat/clock.h deleted file mode 100644 index 0062bafef12d..000000000000 --- a/arch/arm/plat-spear/include/plat/clock.h +++ /dev/null @@ -1,249 +0,0 @@ -/* - * arch/arm/plat-spear/include/plat/clock.h - * - * Clock framework definitions for SPEAr platform - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __PLAT_CLOCK_H -#define __PLAT_CLOCK_H - -#include <linux/list.h> -#include <linux/clkdev.h> -#include <linux/types.h> - -/* clk structure flags */ -#define ALWAYS_ENABLED (1 << 0) /* clock always enabled */ -#define RESET_TO_ENABLE (1 << 1) /* reset register bit to enable clk */ -#define ENABLED_ON_INIT (1 << 2) /* clocks enabled at init */ - -/** - * struct clkops - clock operations - * @enable: pointer to clock enable function - * @disable: pointer to clock disable function - */ -struct clkops { - int (*enable) (struct clk *); - void (*disable) (struct clk *); -}; - -/** - * struct pclk_info - parents info - * @pclk: pointer to parent clk - * @pclk_val: value to be written for selecting this parent - */ -struct pclk_info { - struct clk *pclk; - u8 pclk_val; -}; - -/** - * struct pclk_sel - parents selection configuration - * @pclk_info: pointer to array of parent clock info - * @pclk_count: number of parents - * @pclk_sel_reg: register for selecting a parent - * @pclk_sel_mask: mask for selecting parent (can be used to clear bits also) - */ -struct pclk_sel { - struct pclk_info *pclk_info; - u8 pclk_count; - void __iomem *pclk_sel_reg; - unsigned int pclk_sel_mask; -}; - -/** - * struct rate_config - clk rate configurations - * @tbls: array of device specific clk rate tables, in ascending order of rates - * @count: size of tbls array - * @default_index: default setting when originally disabled - */ -struct rate_config { - void *tbls; - u8 count; - u8 default_index; -}; - -/** - * struct clk - clock structure - * @usage_count: num of users who enabled this clock - * @flags: flags for clock properties - * @rate: programmed clock rate in Hz - * @en_reg: clk enable/disable reg - * @en_reg_bit: clk enable/disable bit - * @ops: clk enable/disable ops - generic_clkops selected if NULL - * @recalc: pointer to clock rate recalculate function - * @set_rate: pointer to clock set rate function - * @calc_rate: pointer to clock get rate function for index - * @rate_config: rate configuration information, used by set_rate - * @div_factor: division factor to parent clock. - * @pclk: current parent clk - * @pclk_sel: pointer to parent selection structure - * @pclk_sel_shift: register shift for selecting parent of this clock - * @children: list for childrens or this clock - * @sibling: node for list of clocks having same parents - * @private_data: clock specific private data - * @node: list to maintain clocks linearly - * @cl: clocklook up associated with this clock - * @dent: object for debugfs - */ -struct clk { - unsigned int usage_count; - unsigned int flags; - unsigned long rate; - void __iomem *en_reg; - u8 en_reg_bit; - const struct clkops *ops; - int (*recalc) (struct clk *); - int (*set_rate) (struct clk *, unsigned long rate); - unsigned long (*calc_rate)(struct clk *, int index); - struct rate_config rate_config; - unsigned int div_factor; - - struct clk *pclk; - struct pclk_sel *pclk_sel; - unsigned int pclk_sel_shift; - - struct list_head children; - struct list_head sibling; - void *private_data; -#ifdef CONFIG_DEBUG_FS - struct list_head node; - struct clk_lookup *cl; - struct dentry *dent; -#endif -}; - -/* pll configuration structure */ -struct pll_clk_masks { - u32 mode_mask; - u32 mode_shift; - - u32 norm_fdbk_m_mask; - u32 norm_fdbk_m_shift; - u32 dith_fdbk_m_mask; - u32 dith_fdbk_m_shift; - u32 div_p_mask; - u32 div_p_shift; - u32 div_n_mask; - u32 div_n_shift; -}; - -struct pll_clk_config { - void __iomem *mode_reg; - void __iomem *cfg_reg; - struct pll_clk_masks *masks; -}; - -/* pll clk rate config structure */ -struct pll_rate_tbl { - u8 mode; - u16 m; - u8 n; - u8 p; -}; - -/* ahb and apb bus configuration structure */ -struct bus_clk_masks { - u32 mask; - u32 shift; -}; - -struct bus_clk_config { - void __iomem *reg; - struct bus_clk_masks *masks; -}; - -/* ahb and apb clk bus rate config structure */ -struct bus_rate_tbl { - u8 div; -}; - -/* Aux clk configuration structure: applicable to UART and FIRDA */ -struct aux_clk_masks { - u32 eq_sel_mask; - u32 eq_sel_shift; - u32 eq1_mask; - u32 eq2_mask; - u32 xscale_sel_mask; - u32 xscale_sel_shift; - u32 yscale_sel_mask; - u32 yscale_sel_shift; -}; - -struct aux_clk_config { - void __iomem *synth_reg; - struct aux_clk_masks *masks; -}; - -/* aux clk rate config structure */ -struct aux_rate_tbl { - u16 xscale; - u16 yscale; - u8 eq; -}; - -/* GPT clk configuration structure */ -struct gpt_clk_masks { - u32 mscale_sel_mask; - u32 mscale_sel_shift; - u32 nscale_sel_mask; - u32 nscale_sel_shift; -}; - -struct gpt_clk_config { - void __iomem *synth_reg; - struct gpt_clk_masks *masks; -}; - -/* gpt clk rate config structure */ -struct gpt_rate_tbl { - u16 mscale; - u16 nscale; -}; - -/* clcd clk configuration structure */ -struct clcd_synth_masks { - u32 div_factor_mask; - u32 div_factor_shift; -}; - -struct clcd_clk_config { - void __iomem *synth_reg; - struct clcd_synth_masks *masks; -}; - -/* clcd clk rate config structure */ -struct clcd_rate_tbl { - u16 div; -}; - -/* platform specific clock functions */ -void __init clk_init(void); -void clk_register(struct clk_lookup *cl); -void recalc_root_clocks(void); - -/* clock recalc & set rate functions */ -int follow_parent(struct clk *clk); -unsigned long pll_calc_rate(struct clk *clk, int index); -int pll_clk_recalc(struct clk *clk); -int pll_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long bus_calc_rate(struct clk *clk, int index); -int bus_clk_recalc(struct clk *clk); -int bus_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long gpt_calc_rate(struct clk *clk, int index); -int gpt_clk_recalc(struct clk *clk); -int gpt_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long aux_calc_rate(struct clk *clk, int index); -int aux_clk_recalc(struct clk *clk); -int aux_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long clcd_calc_rate(struct clk *clk, int index); -int clcd_clk_recalc(struct clk *clk); -int clcd_clk_set_rate(struct clk *clk, unsigned long desired_rate); - -#endif /* __PLAT_CLOCK_H */ diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c index abb5bdecd509..1c94989d725f 100644 --- a/arch/arm/plat-spear/time.c +++ b/arch/arm/plat-spear/time.c @@ -219,10 +219,10 @@ void __init spear_setup_timer(void) goto err_iomap; } - ret = clk_enable(gpt_clk); + ret = clk_prepare_enable(gpt_clk); if (ret < 0) { - pr_err("%s:couldn't enable gpt clock\n", __func__); - goto err_clk; + pr_err("%s:couldn't prepare-enable gpt clock\n", __func__); + goto err_prepare_enable_clk; } spear_clockevent_init(); @@ -230,7 +230,7 @@ void __init spear_setup_timer(void) return; -err_clk: +err_prepare_enable_clk: clk_put(gpt_clk); err_iomap: iounmap(gpt_base); |