diff options
Diffstat (limited to 'drivers/pinctrl/pinmux-sirf.c')
| -rw-r--r-- | drivers/pinctrl/pinmux-sirf.c | 1215 |
1 files changed, 1215 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinmux-sirf.c b/drivers/pinctrl/pinmux-sirf.c new file mode 100644 index 000000000000..d76cae620956 --- /dev/null +++ b/drivers/pinctrl/pinmux-sirf.c @@ -0,0 +1,1215 @@ +/* + * pinmux driver for CSR SiRFprimaII + * + * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company. + * + * Licensed under GPLv2 or later. + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/of_platform.h> +#include <linux/bitops.h> + +#define DRIVER_NAME "pinmux-sirf" + +#define SIRFSOC_NUM_PADS 622 +#define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84) +#define SIRFSOC_RSC_PIN_MUX 0x4 + +/* + * pad list for the pinmux subsystem + * refer to CS-131858-DC-6A.xls + */ +static const struct pinctrl_pin_desc sirfsoc_pads[] = { + PINCTRL_PIN(4, "pwm0"), + PINCTRL_PIN(5, "pwm1"), + PINCTRL_PIN(6, "pwm2"), + PINCTRL_PIN(7, "pwm3"), + PINCTRL_PIN(8, "warm_rst_b"), + PINCTRL_PIN(9, "odo_0"), + PINCTRL_PIN(10, "odo_1"), + PINCTRL_PIN(11, "dr_dir"), + PINCTRL_PIN(13, "scl_1"), + PINCTRL_PIN(15, "sda_1"), + PINCTRL_PIN(16, "x_ldd[16]"), + PINCTRL_PIN(17, "x_ldd[17]"), + PINCTRL_PIN(18, "x_ldd[18]"), + PINCTRL_PIN(19, "x_ldd[19]"), + PINCTRL_PIN(20, "x_ldd[20]"), + PINCTRL_PIN(21, "x_ldd[21]"), + PINCTRL_PIN(22, "x_ldd[22]"), + PINCTRL_PIN(23, "x_ldd[23], lcdrom_frdy"), + PINCTRL_PIN(24, "gps_sgn"), + PINCTRL_PIN(25, "gps_mag"), + PINCTRL_PIN(26, "gps_clk"), + PINCTRL_PIN(27, "sd_cd_b_1"), + PINCTRL_PIN(28, "sd_vcc_on_1"), + PINCTRL_PIN(29, "sd_wp_b_1"), + PINCTRL_PIN(30, "sd_clk_3"), + PINCTRL_PIN(31, "sd_cmd_3"), + + PINCTRL_PIN(32, "x_sd_dat_3[0]"), + PINCTRL_PIN(33, "x_sd_dat_3[1]"), + PINCTRL_PIN(34, "x_sd_dat_3[2]"), + PINCTRL_PIN(35, "x_sd_dat_3[3]"), + PINCTRL_PIN(36, "x_sd_clk_4"), + PINCTRL_PIN(37, "x_sd_cmd_4"), + PINCTRL_PIN(38, "x_sd_dat_4[0]"), + PINCTRL_PIN(39, "x_sd_dat_4[1]"), + PINCTRL_PIN(40, "x_sd_dat_4[2]"), + PINCTRL_PIN(41, "x_sd_dat_4[3]"), + PINCTRL_PIN(42, "x_cko_1"), + PINCTRL_PIN(43, "x_ac97_bit_clk"), + PINCTRL_PIN(44, "x_ac97_dout"), + PINCTRL_PIN(45, "x_ac97_din"), + PINCTRL_PIN(46, "x_ac97_sync"), + PINCTRL_PIN(47, "x_txd_1"), + PINCTRL_PIN(48, "x_txd_2"), + PINCTRL_PIN(49, "x_rxd_1"), + PINCTRL_PIN(50, "x_rxd_2"), + PINCTRL_PIN(51, "x_usclk_0"), + PINCTRL_PIN(52, "x_utxd_0"), + PINCTRL_PIN(53, "x_urxd_0"), + PINCTRL_PIN(54, "x_utfs_0"), + PINCTRL_PIN(55, "x_urfs_0"), + PINCTRL_PIN(56, "x_usclk_1"), + PINCTRL_PIN(57, "x_utxd_1"), + PINCTRL_PIN(58, "x_urxd_1"), + PINCTRL_PIN(59, "x_utfs_1"), + PINCTRL_PIN(60, "x_urfs_1"), + PINCTRL_PIN(61, "x_usclk_2"), + PINCTRL_PIN(62, "x_utxd_2"), + PINCTRL_PIN(63, "x_urxd_2"), + + PINCTRL_PIN(64, "x_utfs_2"), + PINCTRL_PIN(65, "x_urfs_2"), + PINCTRL_PIN(66, "x_df_we_b"), + PINCTRL_PIN(67, "x_df_re_b"), + PINCTRL_PIN(68, "x_txd_0"), + PINCTRL_PIN(69, "x_rxd_0"), + PINCTRL_PIN(78, "x_cko_0"), + PINCTRL_PIN(79, "x_vip_pxd[7]"), + PINCTRL_PIN(80, "x_vip_pxd[6]"), + PINCTRL_PIN(81, "x_vip_pxd[5]"), + PINCTRL_PIN(82, "x_vip_pxd[4]"), + PINCTRL_PIN(83, "x_vip_pxd[3]"), + PINCTRL_PIN(84, "x_vip_pxd[2]"), + PINCTRL_PIN(85, "x_vip_pxd[1]"), + PINCTRL_PIN(86, "x_vip_pxd[0]"), + PINCTRL_PIN(87, "x_vip_vsync"), + PINCTRL_PIN(88, "x_vip_hsync"), + PINCTRL_PIN(89, "x_vip_pxclk"), + PINCTRL_PIN(90, "x_sda_0"), + PINCTRL_PIN(91, "x_scl_0"), + PINCTRL_PIN(92, "x_df_ry_by"), + PINCTRL_PIN(93, "x_df_cs_b[1]"), + PINCTRL_PIN(94, "x_df_cs_b[0]"), + PINCTRL_PIN(95, "x_l_pclk"), + + PINCTRL_PIN(96, "x_l_lck"), + PINCTRL_PIN(97, "x_l_fck"), + PINCTRL_PIN(98, "x_l_de"), + PINCTRL_PIN(99, "x_ldd[0]"), + PINCTRL_PIN(100, "x_ldd[1]"), + PINCTRL_PIN(101, "x_ldd[2]"), + PINCTRL_PIN(102, "x_ldd[3]"), + PINCTRL_PIN(103, "x_ldd[4]"), + PINCTRL_PIN(104, "x_ldd[5]"), + PINCTRL_PIN(105, "x_ldd[6]"), + PINCTRL_PIN(106, "x_ldd[7]"), + PINCTRL_PIN(107, "x_ldd[8]"), + PINCTRL_PIN(108, "x_ldd[9]"), + PINCTRL_PIN(109, "x_ldd[10]"), + PINCTRL_PIN(110, "x_ldd[11]"), + PINCTRL_PIN(111, "x_ldd[12]"), + PINCTRL_PIN(112, "x_ldd[13]"), + PINCTRL_PIN(113, "x_ldd[14]"), + PINCTRL_PIN(114, "x_ldd[15]"), +}; + +/** + * @dev: a pointer back to containing device + * @virtbase: the offset to the controller in virtual memory + */ +struct sirfsoc_pmx { + struct device *dev; + struct pinctrl_dev *pmx; + void __iomem *gpio_virtbase; + void __iomem *rsc_virtbase; +}; + +/* SIRFSOC_GPIO_PAD_EN set */ +struct sirfsoc_muxmask { + unsigned long group; + unsigned long mask; +}; + +struct sirfsoc_padmux { + unsigned long muxmask_counts; + const struct sirfsoc_muxmask *muxmask; + /* RSC_PIN_MUX set */ + unsigned long funcmask; + unsigned long funcval; +}; + + /** + * struct sirfsoc_pin_group - describes a SiRFprimaII pin group + * @name: the name of this specific pin group + * @pins: an array of discrete physical pins used in this group, taken + * from the driver-local pin enumeration space + * @num_pins: the number of pins in this group array, i.e. the number of + * elements in .pins so we can iterate over that array + */ +struct sirfsoc_pin_group { + const char *name; + const unsigned int *pins; + const unsigned num_pins; +}; + +static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = { + { + .group = 3, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | + BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(17) | BIT(18), + }, { + .group = 2, + .mask = BIT(31), + }, +}; + +static const struct sirfsoc_padmux lcd_16bits_padmux = { + .muxmask_counts = ARRAY_SIZE(lcd_16bits_sirfsoc_muxmask), + .muxmask = lcd_16bits_sirfsoc_muxmask, + .funcmask = BIT(4), + .funcval = 0, +}; + +static const unsigned lcd_16bits_pins[] = { 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 }; + +static const struct sirfsoc_muxmask lcd_18bits_muxmask[] = { + { + .group = 3, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | + BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(17) | BIT(18), + }, { + .group = 2, + .mask = BIT(31), + }, { + .group = 0, + .mask = BIT(16) | BIT(17), + }, +}; + +static const struct sirfsoc_padmux lcd_18bits_padmux = { + .muxmask_counts = ARRAY_SIZE(lcd_18bits_muxmask), + .muxmask = lcd_18bits_muxmask, + .funcmask = BIT(4), + .funcval = 0, +}; + +static const unsigned lcd_18bits_pins[] = { 16, 17, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, 111, 112, 113, 114}; + +static const struct sirfsoc_muxmask lcd_24bits_muxmask[] = { + { + .group = 3, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | + BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(17) | BIT(18), + }, { + .group = 2, + .mask = BIT(31), + }, { + .group = 0, + .mask = BIT(16) | BIT(17) | BIT(18) | BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23), + }, +}; + +static const struct sirfsoc_padmux lcd_24bits_padmux = { + .muxmask_counts = ARRAY_SIZE(lcd_24bits_muxmask), + .muxmask = lcd_24bits_muxmask, + .funcmask = BIT(4), + .funcval = 0, +}; + +static const unsigned lcd_24bits_pins[] = { 16, 17, 18, 19, 20, 21, 22, 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 }; + +static const struct sirfsoc_muxmask lcdrom_muxmask[] = { + { + .group = 3, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | + BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(17) | BIT(18), + }, { + .group = 2, + .mask = BIT(31), + }, { + .group = 0, + .mask = BIT(23), + }, +}; + +static const struct sirfsoc_padmux lcdrom_padmux = { + .muxmask_counts = ARRAY_SIZE(lcdrom_muxmask), + .muxmask = lcdrom_muxmask, + .funcmask = BIT(4), + .funcval = BIT(4), +}; + +static const unsigned lcdrom_pins[] = { 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, + 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 }; + +static const struct sirfsoc_muxmask uart0_muxmask[] = { + { + .group = 2, + .mask = BIT(4) | BIT(5), + }, { + .group = 1, + .mask = BIT(23) | BIT(28), + }, +}; + +static const struct sirfsoc_padmux uart0_padmux = { + .muxmask_counts = ARRAY_SIZE(uart0_muxmask), + .muxmask = uart0_muxmask, + .funcmask = BIT(9), + .funcval = BIT(9), +}; + +static const unsigned uart0_pins[] = { 55, 60, 68, 69 }; + +static const struct sirfsoc_muxmask uart0_nostreamctrl_muxmask[] = { + { + .group = 2, + .mask = BIT(4) | BIT(5), + }, +}; + +static const struct sirfsoc_padmux uart0_nostreamctrl_padmux = { + .muxmask_counts = ARRAY_SIZE(uart0_nostreamctrl_muxmask), + .muxmask = uart0_nostreamctrl_muxmask, +}; + +static const unsigned uart0_nostreamctrl_pins[] = { 68, 39 }; + +static const struct sirfsoc_muxmask uart1_muxmask[] = { + { + .group = 1, + .mask = BIT(15) | BIT(17), + }, +}; + +static const struct sirfsoc_padmux uart1_padmux = { + .muxmask_counts = ARRAY_SIZE(uart1_muxmask), + .muxmask = uart1_muxmask, +}; + +static const unsigned uart1_pins[] = { 47, 49 }; + +static const struct sirfsoc_muxmask uart2_muxmask[] = { + { + .group = 1, + .mask = BIT(16) | BIT(18) | BIT(24) | BIT(27), + }, +}; + +static const struct sirfsoc_padmux uart2_padmux = { + .muxmask_counts = ARRAY_SIZE(uart2_muxmask), + .muxmask = uart2_muxmask, + .funcmask = BIT(10), + .funcval = BIT(10), +}; + +static const unsigned uart2_pins[] = { 48, 50, 56, 59 }; + +static const struct sirfsoc_muxmask uart2_nostreamctrl_muxmask[] = { + { + .group = 1, + .mask = BIT(16) | BIT(18), + }, +}; + +static const struct sirfsoc_padmux uart2_nostreamctrl_padmux = { + .muxmask_counts = ARRAY_SIZE(uart2_nostreamctrl_muxmask), + .muxmask = uart2_nostreamctrl_muxmask, +}; + +static const unsigned uart2_nostreamctrl_pins[] = { 48, 50 }; + +static const struct sirfsoc_muxmask sdmmc3_muxmask[] = { + { + .group = 0, + .mask = BIT(30) | BIT(31), + }, { + .group = 1, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3), + }, +}; + +static const struct sirfsoc_padmux sdmmc3_padmux = { + .muxmask_counts = ARRAY_SIZE(sdmmc3_muxmask), + .muxmask = sdmmc3_muxmask, + .funcmask = BIT(7), + .funcval = 0, +}; + +static const unsigned sdmmc3_pins[] = { 30, 31, 32, 33, 34, 35 }; + +static const struct sirfsoc_muxmask spi0_muxmask[] = { + { + .group = 1, + .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3), + }, +}; + +static const struct sirfsoc_padmux spi0_padmux = { + .muxmask_counts = ARRAY_SIZE(spi0_muxmask), + .muxmask = spi0_muxmask, + .funcmask = BIT(7), + .funcval = BIT(7), +}; + +static const unsigned spi0_pins[] = { 32, 33, 34, 35 }; + +static const struct sirfsoc_muxmask sdmmc4_muxmask[] = { + { + .group = 1, + .mask = BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | BIT(9), + }, +}; + +static const struct sirfsoc_padmux sdmmc4_padmux = { + .muxmask_counts = ARRAY_SIZE(sdmmc4_muxmask), + .muxmask = sdmmc4_muxmask, +}; + +static const unsigned sdmmc4_pins[] = { 36, 37, 38, 39, 40, 41 }; + +static const struct sirfsoc_muxmask cko1_muxmask[] = { + { + .group = 1, + .mask = BIT(10), + }, +}; + +static const struct sirfsoc_padmux cko1_padmux = { + .muxmask_counts = ARRAY_SIZE(cko1_muxmask), + .muxmask = cko1_muxmask, + .funcmask = BIT(3), + .funcval = 0, +}; + +static const unsigned cko1_pins[] = { 42 }; + +static const struct sirfsoc_muxmask i2s_muxmask[] = { + { + .group = 1, + .mask = + BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(19) + | BIT(23) | BIT(28), + }, +}; + +static const struct sirfsoc_padmux i2s_padmux = { + .muxmask_counts = ARRAY_SIZE(i2s_muxmask), + .muxmask = i2s_muxmask, + .funcmask = BIT(3) | BIT(9), + .funcval = BIT(3), +}; + +static const unsigned i2s_pins[] = { 42, 43, 44, 45, 46, 51, 55, 60 }; + +static const struct sirfsoc_muxmask ac97_muxmask[] = { + { + .group = 1, + .mask = BIT(11) | BIT(12) | BIT(13) | BIT(14), + }, +}; + +static const struct sirfsoc_padmux ac97_padmux = { + .muxmask_counts = ARRAY_SIZE(ac97_muxmask), + .muxmask = ac97_muxmask, + .funcmask = BIT(8), + .funcval = 0, +}; + +static const unsigned ac97_pins[] = { 33, 34, 35, 36 }; + +static const struct sirfsoc_muxmask spi1_muxmask[] = { + { + .group = 1, + .mask = BIT(11) | BIT(12) | BIT(13) | BIT(14), + }, +}; + +static const struct sirfsoc_padmux spi1_padmux = { + .muxmask_counts = ARRAY_SIZE(spi1_muxmask), + .muxmask = spi1_muxmask, + .funcmask = BIT(8), + .funcval = BIT(8), +}; + +static const unsigned spi1_pins[] = { 33, 34, 35, 36 }; + +static const struct sirfsoc_muxmask sdmmc1_muxmask[] = { + { + .group = 0, + .mask = BIT(27) | BIT(28) | BIT(29), + }, +}; + +static const struct sirfsoc_padmux sdmmc1_padmux = { + .muxmask_counts = ARRAY_SIZE(sdmmc1_muxmask), + .muxmask = sdmmc1_muxmask, +}; + +static const unsigned sdmmc1_pins[] = { 27, 28, 29 }; + +static const struct sirfsoc_muxmask gps_muxmask[] = { + { + .group = 0, + .mask = BIT(24) | BIT(25) | BIT(26), + }, +}; + +static const struct sirfsoc_padmux gps_padmux = { + .muxmask_counts = ARRAY_SIZE(gps_muxmask), + .muxmask = gps_muxmask, + .funcmask = BIT(12) | BIT(13) | BIT(14), + .funcval = BIT(12), +}; + +static const unsigned gps_pins[] = { 24, 25, 26 }; + +static const struct sirfsoc_muxmask sdmmc5_muxmask[] = { + { + .group = 0, + .mask = BIT(24) | BIT(25) | BIT(26), + }, { + .group = 1, + .mask = BIT(29), + }, { + .group = 2, + .mask = BIT(0) | BIT(1), + }, +}; + +static const struct sirfsoc_padmux sdmmc5_padmux = { + .muxmask_counts = ARRAY_SIZE(sdmmc5_muxmask), + .muxmask = sdmmc5_muxmask, + .funcmask = BIT(13) | BIT(14), + .funcval = BIT(13) | BIT(14), +}; + +static const unsigned sdmmc5_pins[] = { 24, 25, 26, 61, 64, 65 }; + +static const struct sirfsoc_muxmask usp0_muxmask[] = { + { + .group = 1, + .mask = BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23), + }, +}; + +static const struct sirfsoc_padmux usp0_padmux = { + .muxmask_counts = ARRAY_SIZE(usp0_muxmask), + .muxmask = usp0_muxmask, + .funcmask = BIT(1) | BIT(2) | BIT(6) | BIT(9), + .funcval = 0, +}; + +static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 }; + +static const struct sirfsoc_muxmask usp1_muxmask[] = { + { + .group = 1, + .mask = BIT(24) | BIT(25) | BIT(26) | BIT(27) | BIT(28), + }, +}; + +static const struct sirfsoc_padmux usp1_padmux = { + .muxmask_counts = ARRAY_SIZE(usp1_muxmask), + .muxmask = usp1_muxmask, + .funcmask = BIT(1) | BIT(9) | BIT(10) | BIT(11), + .funcval = 0, +}; + +static const unsigned usp1_pins[] = { 56, 57, 58, 59, 60 }; + +static const struct sirfsoc_muxmask usp2_muxmask[] = { + { + .group = 1, + .mask = BIT(29) | BIT(30) | BIT(31), + }, { + .group = 2, + .mask = BIT(0) | BIT(1), + }, +}; + +static const struct sirfsoc_padmux usp2_padmux = { + .muxmask_counts = ARRAY_SIZE(usp2_muxmask), + .muxmask = usp2_muxmask, + .funcmask = BIT(13) | BIT(14), + .funcval = 0, +}; + +static const unsigned usp2_pins[] = { 61, 62, 63, 64, 65 }; + +static const struct sirfsoc_muxmask nand_muxmask[] = { + { + .group = 2, + .mask = BIT(2) | BIT(3) | BIT(28) | BIT(29) | BIT(30), + }, +}; + +static const struct sirfsoc_padmux nand_padmux = { + .muxmask_counts = ARRAY_SIZE(nand_muxmask), + .muxmask = nand_muxmask, + .funcmask = BIT(5), + .funcval = 0, +}; + +static const unsigned nand_pins[] = { 64, 65, 92, 93, 94 }; + +static const struct sirfsoc_padmux sdmmc0_padmux = { + .muxmask_counts = 0, + .funcmask = BIT(5), + .funcval = 0, +}; + +static const unsigned sdmmc0_pins[] = { }; + +static const struct sirfsoc_muxmask sdmmc2_muxmask[] = { + { + .group = 2, + .mask = BIT(2) | BIT(3), + }, +}; + +static const struct sirfsoc_padmux sdmmc2_padmux = { + .muxmask_counts = ARRAY_SIZE(sdmmc2_muxmask), + .muxmask = sdmmc2_muxmask, + .funcmask = BIT(5), + .funcval = BIT(5), +}; + +static const unsigned sdmmc2_pins[] = { 66, 67 }; + +static const struct sirfsoc_muxmask cko0_muxmask[] = { + { + .group = 2, + .mask = BIT(14), + }, +}; + +static const struct sirfsoc_padmux cko0_padmux = { + .muxmask_counts = ARRAY_SIZE(cko0_muxmask), + .muxmask = cko0_muxmask, +}; + +static const unsigned cko0_pins[] = { 78 }; + +static const struct sirfsoc_muxmask vip_muxmask[] = { + { + .group = 2, + .mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19) + | BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) | + BIT(25), + }, +}; + +static const struct sirfsoc_padmux vip_padmux = { + .muxmask_counts = ARRAY_SIZE(vip_muxmask), + .muxmask = vip_muxmask, + .funcmask = BIT(0), + .funcval = 0, +}; + +static const unsigned vip_pins[] = { 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 }; + +static const struct sirfsoc_muxmask i2c0_muxmask[] = { + { + .group = 2, + .mask = BIT(26) | BIT(27), + }, +}; + +static const struct sirfsoc_padmux i2c0_padmux = { + .muxmask_counts = ARRAY_SIZE(i2c0_muxmask), + .muxmask = i2c0_muxmask, +}; + +static const unsigned i2c0_pins[] = { 90, 91 }; + +static const struct sirfsoc_muxmask i2c1_muxmask[] = { + { + .group = 0, + .mask = BIT(13) | BIT(15), + }, +}; + +static const struct sirfsoc_padmux i2c1_padmux = { + .muxmask_counts = ARRAY_SIZE(i2c1_muxmask), + .muxmask = i2c1_muxmask, +}; + +static const unsigned i2c1_pins[] = { 13, 15 }; + +static const struct sirfsoc_muxmask viprom_muxmask[] = { + { + .group = 2, + .mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19) + | BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) | + BIT(25), + }, { + .group = 0, + .mask = BIT(12), + }, +}; + +static const struct sirfsoc_padmux viprom_padmux = { + .muxmask_counts = ARRAY_SIZE(viprom_muxmask), + .muxmask = viprom_muxmask, + .funcmask = BIT(0), + .funcval = BIT(0), +}; + +static const unsigned viprom_pins[] = { 12, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 }; + +static const struct sirfsoc_muxmask pwm0_muxmask[] = { + { + .group = 0, + .mask = BIT(4), + }, +}; + +static const struct sirfsoc_padmux pwm0_padmux = { + .muxmask_counts = ARRAY_SIZE(pwm0_muxmask), + .muxmask = pwm0_muxmask, + .funcmask = BIT(12), + .funcval = 0, +}; + +static const unsigned pwm0_pins[] = { 4 }; + +static const struct sirfsoc_muxmask pwm1_muxmask[] = { + { + .group = 0, + .mask = BIT(5), + }, +}; + +static const struct sirfsoc_padmux pwm1_padmux = { + .muxmask_counts = ARRAY_SIZE(pwm1_muxmask), + .muxmask = pwm1_muxmask, +}; + +static const unsigned pwm1_pins[] = { 5 }; + +static const struct sirfsoc_muxmask pwm2_muxmask[] = { + { + .group = 0, + .mask = BIT(6), + }, +}; + +static const struct sirfsoc_padmux pwm2_padmux = { + .muxmask_counts = ARRAY_SIZE(pwm2_muxmask), + .muxmask = pwm2_muxmask, +}; + +static const unsigned pwm2_pins[] = { 6 }; + +static const struct sirfsoc_muxmask pwm3_muxmask[] = { + { + .group = 0, + .mask = BIT(7), + }, +}; + +static const struct sirfsoc_padmux pwm3_padmux = { + .muxmask_counts = ARRAY_SIZE(pwm3_muxmask), + .muxmask = pwm3_muxmask, +}; + +static const unsigned pwm3_pins[] = { 7 }; + +static const struct sirfsoc_muxmask warm_rst_muxmask[] = { + { + .group = 0, + .mask = BIT(8), + }, +}; + +static const struct sirfsoc_padmux warm_rst_padmux = { + .muxmask_counts = ARRAY_SIZE(warm_rst_muxmask), + .muxmask = warm_rst_muxmask, +}; + +static const unsigned warm_rst_pins[] = { 8 }; + +static const struct sirfsoc_muxmask usb0_utmi_drvbus_muxmask[] = { + { + .group = 1, + .mask = BIT(22), + }, +}; +static const struct sirfsoc_padmux usb0_utmi_drvbus_padmux = { + .muxmask_counts = ARRAY_SIZE(usb0_utmi_drvbus_muxmask), + .muxmask = usb0_utmi_drvbus_muxmask, + .funcmask = BIT(6), + .funcval = BIT(6), /* refer to PAD_UTMI_DRVVBUS0_ENABLE */ +}; + +static const unsigned usb0_utmi_drvbus_pins[] = { 54 }; + +static const struct sirfsoc_muxmask usb1_utmi_drvbus_muxmask[] = { + { + .group = 1, + .mask = BIT(27), + }, +}; + +static const struct sirfsoc_padmux usb1_utmi_drvbus_padmux = { + .muxmask_counts = ARRAY_SIZE(usb1_utmi_drvbus_muxmask), + .muxmask = usb1_utmi_drvbus_muxmask, + .funcmask = BIT(11), + .funcval = BIT(11), /* refer to PAD_UTMI_DRVVBUS1_ENABLE */ +}; + +static const unsigned usb1_utmi_drvbus_pins[] = { 59 }; + +static const struct sirfsoc_muxmask pulse_count_muxmask[] = { + { + .group = 0, + .mask = BIT(9) | BIT(10) | BIT(11), + }, +}; + +static const struct sirfsoc_padmux pulse_count_padmux = { + .muxmask_counts = ARRAY_SIZE(pulse_count_muxmask), + .muxmask = pulse_count_muxmask, +}; + +static const unsigned pulse_count_pins[] = { 9, 10, 11 }; + +#define SIRFSOC_PIN_GROUP(n, p) \ + { \ + .name = n, \ + .pins = p, \ + .num_pins = ARRAY_SIZE(p), \ + } + +static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = { + SIRFSOC_PIN_GROUP("lcd_16bitsgrp", lcd_16bits_pins), + SIRFSOC_PIN_GROUP("lcd_18bitsgrp", lcd_18bits_pins), + SIRFSOC_PIN_GROUP("lcd_24bitsgrp", lcd_24bits_pins), + SIRFSOC_PIN_GROUP("lcdrom_grp", lcdrom_pins), + SIRFSOC_PIN_GROUP("uart0grp", uart0_pins), + SIRFSOC_PIN_GROUP("uart1grp", uart1_pins), + SIRFSOC_PIN_GROUP("uart2grp", uart2_pins), + SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins), + SIRFSOC_PIN_GROUP("usp0grp", usp0_pins), + SIRFSOC_PIN_GROUP("usp1grp", usp1_pins), + SIRFSOC_PIN_GROUP("usp2grp", usp2_pins), + SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins), + SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins), + SIRFSOC_PIN_GROUP("pwm0grp", pwm0_pins), + SIRFSOC_PIN_GROUP("pwm1grp", pwm1_pins), + SIRFSOC_PIN_GROUP("pwm2grp", pwm2_pins), + SIRFSOC_PIN_GROUP("pwm3grp", pwm3_pins), + SIRFSOC_PIN_GROUP("vipgrp", vip_pins), + SIRFSOC_PIN_GROUP("vipromgrp", viprom_pins), + SIRFSOC_PIN_GROUP("warm_rstgrp", warm_rst_pins), + SIRFSOC_PIN_GROUP("cko0_rstgrp", cko0_pins), + SIRFSOC_PIN_GROUP("cko1_rstgrp", cko1_pins), + SIRFSOC_PIN_GROUP("sdmmc0grp", sdmmc0_pins), + SIRFSOC_PIN_GROUP("sdmmc1grp", sdmmc1_pins), + SIRFSOC_PIN_GROUP("sdmmc2grp", sdmmc2_pins), + SIRFSOC_PIN_GROUP("sdmmc3grp", sdmmc3_pins), + SIRFSOC_PIN_GROUP("sdmmc4grp", sdmmc4_pins), + SIRFSOC_PIN_GROUP("sdmmc5grp", sdmmc5_pins), + SIRFSOC_PIN_GROUP("usb0_utmi_drvbusgrp", usb0_utmi_drvbus_pins), + SIRFSOC_PIN_GROUP("usb1_utmi_drvbusgrp", usb1_utmi_drvbus_pins), + SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins), + SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins), + SIRFSOC_PIN_GROUP("ac97grp", ac97_pins), + SIRFSOC_PIN_GROUP("nandgrp", nand_pins), + SIRFSOC_PIN_GROUP("spi0grp", spi0_pins), + SIRFSOC_PIN_GROUP("spi1grp", spi1_pins), + SIRFSOC_PIN_GROUP("gpsgrp", gps_pins), +}; + +static int sirfsoc_list_groups(struct pinctrl_dev *pctldev, unsigned selector) +{ + if (selector >= ARRAY_SIZE(sirfsoc_pin_groups)) + return -EINVAL; + return 0; +} + +static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev, + unsigned selector) +{ + if (selector >= ARRAY_SIZE(sirfsoc_pin_groups)) + return NULL; + return sirfsoc_pin_groups[selector].name; +} + +static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector, + const unsigned **pins, + unsigned *num_pins) +{ + if (selector >= ARRAY_SIZE(sirfsoc_pin_groups)) + return -EINVAL; + *pins = sirfsoc_pin_groups[selector].pins; + *num_pins = sirfsoc_pin_groups[selector].num_pins; + return 0; +} + +static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s, + unsigned offset) +{ + seq_printf(s, " " DRIVER_NAME); +} + +static struct pinctrl_ops sirfsoc_pctrl_ops = { + .list_groups = sirfsoc_list_groups, + .get_group_name = sirfsoc_get_group_name, + .get_group_pins = sirfsoc_get_group_pins, + .pin_dbg_show = sirfsoc_pin_dbg_show, +}; + +struct sirfsoc_pmx_func { + const char *name; + const char * const *groups; + const unsigned num_groups; + const struct sirfsoc_padmux *padmux; +}; + +static const char * const lcd_16bitsgrp[] = { "lcd_16bitsgrp" }; +static const char * const lcd_18bitsgrp[] = { "lcd_18bitsgrp" }; +static const char * const lcd_24bitsgrp[] = { "lcd_24bitsgrp" }; +static const char * const lcdromgrp[] = { "lcdromgrp" }; +static const char * const uart0grp[] = { "uart0grp" }; +static const char * const uart1grp[] = { "uart1grp" }; +static const char * const uart2grp[] = { "uart2grp" }; +static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" }; +static const char * const usp0grp[] = { "usp0grp" }; +static const char * const usp1grp[] = { "usp1grp" }; +static const char * const usp2grp[] = { "usp2grp" }; +static const char * const i2c0grp[] = { "i2c0grp" }; +static const char * const i2c1grp[] = { "i2c1grp" }; +static const char * const pwm0grp[] = { "pwm0grp" }; +static const char * const pwm1grp[] = { "pwm1grp" }; +static const char * const pwm2grp[] = { "pwm2grp" }; +static const char * const pwm3grp[] = { "pwm3grp" }; +static const char * const vipgrp[] = { "vipgrp" }; +static const char * const vipromgrp[] = { "vipromgrp" }; +static const char * const warm_rstgrp[] = { "warm_rstgrp" }; +static const char * const cko0grp[] = { "cko0grp" }; +static const char * const cko1grp[] = { "cko1grp" }; +static const char * const sdmmc0grp[] = { "sdmmc0grp" }; +static const char * const sdmmc1grp[] = { "sdmmc1grp" }; +static const char * const sdmmc2grp[] = { "sdmmc2grp" }; +static const char * const sdmmc3grp[] = { "sdmmc3grp" }; +static const char * const sdmmc4grp[] = { "sdmmc4grp" }; +static const char * const sdmmc5grp[] = { "sdmmc5grp" }; +static const char * const usb0_utmi_drvbusgrp[] = { "usb0_utmi_drvbusgrp" }; +static const char * const usb1_utmi_drvbusgrp[] = { "usb1_utmi_drvbusgrp" }; +static const char * const pulse_countgrp[] = { "pulse_countgrp" }; +static const char * const i2sgrp[] = { "i2sgrp" }; +static const char * const ac97grp[] = { "ac97grp" }; +static const char * const nandgrp[] = { "nandgrp" }; +static const char * const spi0grp[] = { "spi0grp" }; +static const char * const spi1grp[] = { "spi1grp" }; +static const char * const gpsgrp[] = { "gpsgrp" }; + +#define SIRFSOC_PMX_FUNCTION(n, g, m) \ + { \ + .name = n, \ + .groups = g, \ + .num_groups = ARRAY_SIZE(g), \ + .padmux = &m, \ + } + +static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = { + SIRFSOC_PMX_FUNCTION("lcd_16bits", lcd_16bitsgrp, lcd_16bits_padmux), + SIRFSOC_PMX_FUNCTION("lcd_18bits", lcd_18bitsgrp, lcd_18bits_padmux), + SIRFSOC_PMX_FUNCTION("lcd_24bits", lcd_24bitsgrp, lcd_24bits_padmux), + SIRFSOC_PMX_FUNCTION("lcdrom", lcdromgrp, lcdrom_padmux), + SIRFSOC_PMX_FUNCTION("uart0", uart0grp, uart0_padmux), + SIRFSOC_PMX_FUNCTION("uart1", uart1grp, uart1_padmux), + SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux), + SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux), + SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux), + SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux), + SIRFSOC_PMX_FUNCTION("usp2", usp2grp, usp2_padmux), + SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux), + SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux), + SIRFSOC_PMX_FUNCTION("pwm0", pwm0grp, pwm0_padmux), + SIRFSOC_PMX_FUNCTION("pwm1", pwm1grp, pwm1_padmux), + SIRFSOC_PMX_FUNCTION("pwm2", pwm2grp, pwm2_padmux), + SIRFSOC_PMX_FUNCTION("pwm3", pwm3grp, pwm3_padmux), + SIRFSOC_PMX_FUNCTION("vip", vipgrp, vip_padmux), + SIRFSOC_PMX_FUNCTION("viprom", vipromgrp, viprom_padmux), + SIRFSOC_PMX_FUNCTION("warm_rst", warm_rstgrp, warm_rst_padmux), + SIRFSOC_PMX_FUNCTION("cko0", cko0grp, cko0_padmux), + SIRFSOC_PMX_FUNCTION("cko1", cko1grp, cko1_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc0", sdmmc0grp, sdmmc0_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc1", sdmmc1grp, sdmmc1_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc2", sdmmc2grp, sdmmc2_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc3", sdmmc3grp, sdmmc3_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc4", sdmmc4grp, sdmmc4_padmux), + SIRFSOC_PMX_FUNCTION("sdmmc5", sdmmc5grp, sdmmc5_padmux), + SIRFSOC_PMX_FUNCTION("usb0_utmi_drvbus", usb0_utmi_drvbusgrp, usb0_utmi_drvbus_padmux), + SIRFSOC_PMX_FUNCTION("usb1_utmi_drvbus", usb1_utmi_drvbusgrp, usb1_utmi_drvbus_padmux), + SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux), + SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux), + SIRFSOC_PMX_FUNCTION("ac97", ac97grp, ac97_padmux), + SIRFSOC_PMX_FUNCTION("nand", nandgrp, nand_padmux), + SIRFSOC_PMX_FUNCTION("spi0", spi0grp, spi0_padmux), + SIRFSOC_PMX_FUNCTION("spi1", spi1grp, spi1_padmux), + SIRFSOC_PMX_FUNCTION("gps", gpsgrp, gps_padmux), +}; + +static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector, + bool enable) +{ + int i; + const struct sirfsoc_padmux *mux = sirfsoc_pmx_functions[selector].padmux; + const struct sirfsoc_muxmask *mask = mux->muxmask; + + for (i = 0; i < mux->muxmask_counts; i++) { + u32 muxval; + muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group)); + if (enable) + muxval = muxval & ~mask[i].mask; + else + muxval = muxval | mask[i].mask; + writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group)); + } + + if (mux->funcmask && enable) { + u32 func_en_val; + func_en_val = + readl(spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX); + func_en_val = + (func_en_val & ~mux->funcmask) | (mux-> + funcval); + writel(func_en_val, spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX); + } +} + +static int sirfsoc_pinmux_enable(struct pinctrl_dev *pmxdev, unsigned selector, + unsigned group) +{ + struct sirfsoc_pmx *spmx; + + spmx = pinctrl_dev_get_drvdata(pmxdev); + sirfsoc_pinmux_endisable(spmx, selector, true); + + return 0; +} + +static void sirfsoc_pinmux_disable(struct pinctrl_dev *pmxdev, unsigned selector, + unsigned group) +{ + struct sirfsoc_pmx *spmx; + + spmx = pinctrl_dev_get_drvdata(pmxdev); + sirfsoc_pinmux_endisable(spmx, selector, false); +} + +static int sirfsoc_pinmux_list_funcs(struct pinctrl_dev *pmxdev, unsigned selector) +{ + if (selector >= ARRAY_SIZE(sirfsoc_pmx_functions)) + return -EINVAL; + return 0; +} + +static const char *sirfsoc_pinmux_get_func_name(struct pinctrl_dev *pctldev, + unsigned selector) +{ + return sirfsoc_pmx_functions[selector].name; +} + +static int sirfsoc_pinmux_get_groups(struct pinctrl_dev *pctldev, unsigned selector, + const char * const **groups, + unsigned * const num_groups) +{ + *groups = sirfsoc_pmx_functions[selector].groups; + *num_groups = sirfsoc_pmx_functions[selector].num_groups; + return 0; +} + +static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev, + struct pinctrl_gpio_range *range, unsigned offset) +{ + struct sirfsoc_pmx *spmx; + + int group = range->id; + + u32 muxval; + + spmx = pinctrl_dev_get_drvdata(pmxdev); + + muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group)); + muxval = muxval | (1 << offset); + writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group)); + + return 0; +} + +static struct pinmux_ops sirfsoc_pinmux_ops = { + .list_functions = sirfsoc_pinmux_list_funcs, + .enable = sirfsoc_pinmux_enable, + .disable = sirfsoc_pinmux_disable, + .get_function_name = sirfsoc_pinmux_get_func_name, + .get_function_groups = sirfsoc_pinmux_get_groups, + .gpio_request_enable = sirfsoc_pinmux_request_gpio, +}; + +static struct pinctrl_desc sirfsoc_pinmux_desc = { + .name = DRIVER_NAME, + .pins = sirfsoc_pads, + .npins = ARRAY_SIZE(sirfsoc_pads), + .maxpin = SIRFSOC_NUM_PADS - 1, + .pctlops = &sirfsoc_pctrl_ops, + .pmxops = &sirfsoc_pinmux_ops, + .owner = THIS_MODULE, +}; + +/* + * Todo: bind irq_chip to every pinctrl_gpio_range + */ +static struct pinctrl_gpio_range sirfsoc_gpio_ranges[] = { + { + .name = "sirfsoc-gpio*", + .id = 0, + .base = 0, + .npins = 32, + }, { + .name = "sirfsoc-gpio*", + .id = 1, + .base = 32, + .npins = 32, + }, { + .name = "sirfsoc-gpio*", + .id = 2, + .base = 64, + .npins = 32, + }, { + .name = "sirfsoc-gpio*", + .id = 3, + .base = 96, + .npins = 19, + }, +}; + +static void __iomem *sirfsoc_rsc_of_iomap(void) +{ + const struct of_device_id rsc_ids[] = { + { .compatible = "sirf,prima2-rsc" }, + {} + }; + struct device_node *np; + + np = of_find_matching_node(NULL, rsc_ids); + if (!np) + panic("unable to find compatible rsc node in dtb\n"); + + return of_iomap(np, 0); +} + +static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev) +{ + int ret; + struct sirfsoc_pmx *spmx; + struct device_node *np = pdev->dev.of_node; + int i; + + /* Create state holders etc for this driver */ + spmx = devm_kzalloc(&pdev->dev, sizeof(*spmx), GFP_KERNEL); + if (!spmx) + return -ENOMEM; + + spmx->dev = &pdev->dev; + + platform_set_drvdata(pdev, spmx); + + spmx->gpio_virtbase = of_iomap(np, 0); + if (!spmx->gpio_virtbase) { + ret = -ENOMEM; + dev_err(&pdev->dev, "can't map gpio registers\n"); + goto out_no_gpio_remap; + } + + spmx->rsc_virtbase = sirfsoc_rsc_of_iomap(); + if (!spmx->rsc_virtbase) { + ret = -ENOMEM; + dev_err(&pdev->dev, "can't map rsc registers\n"); + goto out_no_rsc_remap; + } + + /* Now register the pin controller and all pins it handles */ + spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx); + if (!spmx->pmx) { + dev_err(&pdev->dev, "could not register SIRFSOC pinmux driver\n"); + ret = -EINVAL; + goto out_no_pmx; + } + + for (i = 0; i < ARRAY_SIZE(sirfsoc_gpio_ranges); i++) + pinctrl_add_gpio_range(spmx->pmx, &sirfsoc_gpio_ranges[i]); + + dev_info(&pdev->dev, "initialized SIRFSOC pinmux driver\n"); + + return 0; + +out_no_pmx: + iounmap(spmx->rsc_virtbase); +out_no_rsc_remap: + iounmap(spmx->gpio_virtbase); +out_no_gpio_remap: + platform_set_drvdata(pdev, NULL); + devm_kfree(&pdev->dev, spmx); + return ret; +} + +static const struct of_device_id pinmux_ids[] = { + { .compatible = "sirf,prima2-gpio-pinmux" }, + {} +}; + +static struct platform_driver sirfsoc_pinmux_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = pinmux_ids, + }, + .probe = sirfsoc_pinmux_probe, +}; + +static int __init sirfsoc_pinmux_init(void) +{ + return platform_driver_register(&sirfsoc_pinmux_driver); +} +arch_initcall(sirfsoc_pinmux_init); + +MODULE_AUTHOR("Rongjun Ying <rongjun.ying@csr.com>, " + "Barry Song <baohua.song@csr.com>"); +MODULE_DESCRIPTION("SIRFSOC pin control driver"); +MODULE_LICENSE("GPL"); |