diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-davinci/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/da850.c | 24 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/da8xx-dt.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/devices-da8xx.c | 30 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/common.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/da8xx.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/pdata-quirks.c | 39 |
7 files changed, 100 insertions, 8 deletions
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile index 0a2e6da45f28..df96ca9eab6d 100644 --- a/arch/arm/mach-davinci/Makefile +++ b/arch/arm/mach-davinci/Makefile @@ -21,7 +21,7 @@ obj-$(CONFIG_AINTC) += irq.o obj-$(CONFIG_CP_INTC) += cp_intc.o # Board specific -obj-$(CONFIG_MACH_DA8XX_DT) += da8xx-dt.o +obj-$(CONFIG_MACH_DA8XX_DT) += da8xx-dt.o pdata-quirks.o obj-$(CONFIG_MACH_DAVINCI_EVM) += board-dm644x-evm.o obj-$(CONFIG_MACH_SFFSDR) += board-sffsdr.o obj-$(CONFIG_MACH_NEUROS_OSD2) += board-neuros-osd2.o diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c index 1d873d15b545..d09765ba246b 100644 --- a/arch/arm/mach-davinci/da850.c +++ b/arch/arm/mach-davinci/da850.c @@ -571,7 +571,7 @@ static struct clk_lookup da850_clks[] = { CLK("spi_davinci.0", NULL, &spi0_clk), CLK("spi_davinci.1", NULL, &spi1_clk), CLK("vpif", NULL, &vpif_clk), - CLK("ahci_da850", NULL, &sata_clk), + CLK("ahci_da850", "fck", &sata_clk), CLK("davinci-rproc.0", NULL, &dsp_clk), CLK(NULL, NULL, &ehrpwm_clk), CLK("ehrpwm.0", "fck", &ehrpwm0_clk), @@ -1202,14 +1202,28 @@ static int da850_set_armrate(struct clk *clk, unsigned long index) return clk_set_rate(pllclk, index); } -static int da850_set_pll0rate(struct clk *clk, unsigned long index) +static int da850_set_pll0rate(struct clk *clk, unsigned long rate) { - unsigned int prediv, mult, postdiv; - struct da850_opp *opp; struct pll_data *pll = clk->pll_data; + struct cpufreq_frequency_table *freq; + unsigned int prediv, mult, postdiv; + struct da850_opp *opp = NULL; int ret; - opp = (struct da850_opp *) cpufreq_info.freq_table[index].driver_data; + rate /= 1000; + + for (freq = da850_freq_table; + freq->frequency != CPUFREQ_TABLE_END; freq++) { + /* rate is in Hz, freq->frequency is in KHz */ + if (freq->frequency == rate) { + opp = (struct da850_opp *)freq->driver_data; + break; + } + } + + if (!opp) + return -EINVAL; + prediv = opp->prediv; mult = opp->mult; postdiv = opp->postdiv; diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index 9ee44da6eb7b..071933b16a0c 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -42,6 +42,7 @@ static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("ti,da830-ohci", 0x01e25000, "ohci-da8xx", NULL), OF_DEV_AUXDATA("ti,da830-musb", 0x01e00000, "musb-da8xx", NULL), OF_DEV_AUXDATA("ti,da830-usb-phy", 0x01c1417c, "da8xx-usb-phy", NULL), + OF_DEV_AUXDATA("ti,da850-ahci", 0x01e18000, "ahci_da850", NULL), {} }; @@ -49,6 +50,9 @@ static struct of_dev_auxdata da850_auxdata_lookup[] __initdata = { static void __init da850_init_machine(void) { + /* All existing boards use 100MHz SATA refclkpn */ + static const unsigned long sata_refclkpn = 100 * 1000 * 1000; + int ret; ret = da8xx_register_usb20_phy_clk(false); @@ -60,8 +64,14 @@ static void __init da850_init_machine(void) pr_warn("%s: registering USB 1.1 PHY clock failed: %d", __func__, ret); + ret = da850_register_sata_refclk(sata_refclkpn); + if (ret) + pr_warn("%s: registering SATA REFCLK failed: %d", + __func__, ret); + of_platform_default_populate(NULL, da850_auxdata_lookup, NULL); davinci_pm_init(); + pdata_quirks_init(); } static const char *const da850_boards_compat[] __initconst = { diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index c2457b3fdb5f..7cf529ffbe5a 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -24,6 +24,7 @@ #include <mach/common.h> #include <mach/time.h> #include <mach/da8xx.h> +#include <mach/clock.h> #include "cpuidle.h" #include "sram.h" @@ -1023,6 +1024,28 @@ int __init da8xx_register_spi_bus(int instance, unsigned num_chipselect) } #ifdef CONFIG_ARCH_DAVINCI_DA850 +static struct clk sata_refclk = { + .name = "sata_refclk", + .set_rate = davinci_simple_set_rate, +}; + +static struct clk_lookup sata_refclk_lookup = + CLK("ahci_da850", "refclk", &sata_refclk); + +int __init da850_register_sata_refclk(int rate) +{ + int ret; + + sata_refclk.rate = rate; + ret = clk_register(&sata_refclk); + if (ret) + return ret; + + clkdev_add(&sata_refclk_lookup); + + return 0; +} + static struct resource da850_sata_resources[] = { { .start = DA850_SATA_BASE, @@ -1055,8 +1078,11 @@ static struct platform_device da850_sata_device = { int __init da850_register_sata(unsigned long refclkpn) { - /* please see comment in drivers/ata/ahci_da850.c */ - BUG_ON(refclkpn != 100 * 1000 * 1000); + int ret; + + ret = da850_register_sata_refclk(refclkpn); + if (ret) + return ret; return platform_device_register(&da850_sata_device); } diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h index 0b3c169758ed..037aa66bcac1 100644 --- a/arch/arm/mach-davinci/include/mach/common.h +++ b/arch/arm/mach-davinci/include/mach/common.h @@ -102,6 +102,8 @@ int davinci_pm_init(void); static inline int davinci_pm_init(void) { return 0; } #endif +void __init pdata_quirks_init(void); + #define SRAM_SIZE SZ_128K #endif /* __ARCH_ARM_MACH_DAVINCI_COMMON_H */ diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 85ff2183b6db..7e464228948b 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -95,6 +95,7 @@ int da8xx_register_usb11(struct da8xx_ohci_root_hub *pdata); int da8xx_register_usb_refclkin(int rate); int da8xx_register_usb20_phy_clk(bool use_usb_refclkin); int da8xx_register_usb11_phy_clk(bool use_usb_refclkin); +int da850_register_sata_refclk(int rate); int da8xx_register_emac(void); int da8xx_register_uio_pruss(void); int da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata); diff --git a/arch/arm/mach-davinci/pdata-quirks.c b/arch/arm/mach-davinci/pdata-quirks.c new file mode 100644 index 000000000000..5b57da475065 --- /dev/null +++ b/arch/arm/mach-davinci/pdata-quirks.c @@ -0,0 +1,39 @@ +/* + * Legacy platform_data quirks + * + * Copyright (C) 2016 BayLibre, Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/of_platform.h> + +#include <mach/common.h> + +struct pdata_init { + const char *compatible; + void (*fn)(void); +}; + +static void pdata_quirks_check(struct pdata_init *quirks) +{ + while (quirks->compatible) { + if (of_machine_is_compatible(quirks->compatible)) { + if (quirks->fn) + quirks->fn(); + break; + } + quirks++; + } +} + +static struct pdata_init pdata_quirks[] __initdata = { + { /* sentinel */ }, +}; + +void __init pdata_quirks_init(void) +{ + pdata_quirks_check(pdata_quirks); +} |