/* * Driver for the ST Microelectronics SPEAr300 pinmux * * Copyright (C) 2012 ST Microelectronics * Viresh Kumar <viresh.linux@gmail.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/err.h> #include <linux/init.h> #include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include "pinctrl-spear3xx.h" #define DRIVER_NAME "spear300-pinmux" /* addresses */ #define PMX_CONFIG_REG 0x00 #define MODE_CONFIG_REG 0x04 /* modes */ #define NAND_MODE (1 << 0) #define NOR_MODE (1 << 1) #define PHOTO_FRAME_MODE (1 << 2) #define LEND_IP_PHONE_MODE (1 << 3) #define HEND_IP_PHONE_MODE (1 << 4) #define LEND_WIFI_PHONE_MODE (1 << 5) #define HEND_WIFI_PHONE_MODE (1 << 6) #define ATA_PABX_WI2S_MODE (1 << 7) #define ATA_PABX_I2S_MODE (1 << 8) #define CAML_LCDW_MODE (1 << 9) #define CAMU_LCD_MODE (1 << 10) #define CAMU_WLCD_MODE (1 << 11) #define CAML_LCD_MODE (1 << 12) static struct spear_pmx_mode pmx_mode_nand = { .name = "nand", .mode = NAND_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x00, }; static struct spear_pmx_mode pmx_mode_nor = { .name = "nor", .mode = NOR_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x01, }; static struct spear_pmx_mode pmx_mode_photo_frame = { .name = "photo frame mode", .mode = PHOTO_FRAME_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x02, }; static struct spear_pmx_mode pmx_mode_lend_ip_phone = { .name = "lend ip phone mode", .mode = LEND_IP_PHONE_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x03, }; static struct spear_pmx_mode pmx_mode_hend_ip_phone = { .name = "hend ip phone mode", .mode = HEND_IP_PHONE_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x04, }; static struct spear_pmx_mode pmx_mode_lend_wifi_phone = { .name = "lend wifi phone mode", .mode = LEND_WIFI_PHONE_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x05, }; static struct spear_pmx_mode pmx_mode_hend_wifi_phone = { .name = "hend wifi phone mode", .mode = HEND_WIFI_PHONE_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x06, }; static struct spear_pmx_mode pmx_mode_ata_pabx_wi2s = { .name = "ata pabx wi2s mode", .mode = ATA_PABX_WI2S_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x07, }; static struct spear_pmx_mode pmx_mode_ata_pabx_i2s = { .name = "ata pabx i2s mode", .mode = ATA_PABX_I2S_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x08, }; static struct spear_pmx_mode pmx_mode_caml_lcdw = { .name = "caml lcdw mode", .mode = CAML_LCDW_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x0C, }; static struct spear_pmx_mode pmx_mode_camu_lcd = { .name = "camu lcd mode", .mode = CAMU_LCD_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x0D, }; static struct spear_pmx_mode pmx_mode_camu_wlcd = { .name = "camu wlcd mode", .mode = CAMU_WLCD_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0xE, }; static struct spear_pmx_mode pmx_mode_caml_lcd = { .name = "caml lcd mode", .mode = CAML_LCD_MODE, .reg = MODE_CONFIG_REG, .mask = 0x0000000F, .val = 0x0F, }; static struct spear_pmx_mode *spear300_pmx_modes[] = { &pmx_mode_nand, &pmx_mode_nor, &pmx_mode_photo_frame, &pmx_mode_lend_ip_phone, &pmx_mode_hend_ip_phone, &pmx_mode_lend_wifi_phone, &pmx_mode_hend_wifi_phone, &pmx_mode_ata_pabx_wi2s, &pmx_mode_ata_pabx_i2s, &pmx_mode_caml_lcdw, &pmx_mode_camu_lcd, &pmx_mode_camu_wlcd, &pmx_mode_caml_lcd, }; /* fsmc_2chips_pins */ static const unsigned fsmc_2chips_pins[] = { 1, 97 }; static struct spear_muxreg fsmc_2chips_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_FIRDA_MASK, .val = 0, }, }; static struct spear_modemux fsmc_2chips_modemux[] = { { .modes = NAND_MODE | NOR_MODE | PHOTO_FRAME_MODE | ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE, .muxregs = fsmc_2chips_muxreg, .nmuxregs = ARRAY_SIZE(fsmc_2chips_muxreg), }, }; static struct spear_pingroup fsmc_2chips_pingroup = { .name = "fsmc_2chips_grp", .pins = fsmc_2chips_pins, .npins = ARRAY_SIZE(fsmc_2chips_pins), .modemuxs = fsmc_2chips_modemux, .nmodemuxs = ARRAY_SIZE(fsmc_2chips_modemux), }; /* fsmc_4chips_pins */ static const unsigned fsmc_4chips_pins[] = { 1, 2, 3, 97 }; static struct spear_muxreg fsmc_4chips_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_FIRDA_MASK | PMX_UART0_MASK, .val = 0, }, }; static struct spear_modemux fsmc_4chips_modemux[] = { { .modes = NAND_MODE | NOR_MODE | PHOTO_FRAME_MODE | ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE, .muxregs = fsmc_4chips_muxreg, .nmuxregs = ARRAY_SIZE(fsmc_4chips_muxreg), }, }; static struct spear_pingroup fsmc_4chips_pingroup = { .name = "fsmc_4chips_grp", .pins = fsmc_4chips_pins, .npins = ARRAY_SIZE(fsmc_4chips_pins), .modemuxs = fsmc_4chips_modemux, .nmodemuxs = ARRAY_SIZE(fsmc_4chips_modemux), }; static const char *const fsmc_grps[] = { "fsmc_2chips_grp", "fsmc_4chips_grp" }; static struct spear_function fsmc_function = { .name = "fsmc", .groups = fsmc_grps, .ngroups = ARRAY_SIZE(fsmc_grps), }; /* clcd_lcdmode_pins */ static const unsigned clcd_lcdmode_pins[] = { 49, 50 }; static struct spear_muxreg clcd_lcdmode_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK, .val = 0, }, }; static struct spear_modemux clcd_lcdmode_modemux[] = { { .modes = HEND_IP_PHONE_MODE | HEND_WIFI_PHONE_MODE | CAMU_LCD_MODE | CAML_LCD_MODE, .muxregs = clcd_lcdmode_muxreg, .nmuxregs = ARRAY_SIZE(clcd_lcdmode_muxreg), }, }; static struct spear_pingroup clcd_lcdmode_pingroup = { .name = "clcd_lcdmode_grp", .pins = clcd_lcdmode_pins, .npins = ARRAY_SIZE(clcd_lcdmode_pins), .modemuxs = clcd_lcdmode_modemux, .nmodemuxs = ARRAY_SIZE(clcd_lcdmode_modemux), }; /* clcd_pfmode_pins */ static const unsigned clcd_pfmode_pins[] = { 47, 48, 49, 50 }; static struct spear_muxreg clcd_pfmode_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_2_3_MASK, .val = 0, }, }; static struct spear_modemux clcd_pfmode_modemux[] = { { .modes = PHOTO_FRAME_MODE, .muxregs = clcd_pfmode_muxreg, .nmuxregs = ARRAY_SIZE(clcd_pfmode_muxreg), }, }; static struct spear_pingroup clcd_pfmode_pingroup = { .name = "clcd_pfmode_grp", .pins = clcd_pfmode_pins, .npins = ARRAY_SIZE(clcd_pfmode_pins), .modemuxs = clcd_pfmode_modemux, .nmodemuxs = ARRAY_SIZE(clcd_pfmode_modemux), }; static const char *const clcd_grps[] = { "clcd_lcdmode_grp", "clcd_pfmode_grp" }; static struct spear_function clcd_function = { .name = "clcd", .groups = clcd_grps, .ngroups = ARRAY_SIZE(clcd_grps), }; /* tdm_pins */ static const unsigned tdm_pins[] = { 34, 35, 36, 37, 38 }; static struct spear_muxreg tdm_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_UART0_MODEM_MASK | PMX_SSP_CS_MASK, .val = 0, }, }; static struct spear_modemux tdm_modemux[] = { { .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE | ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE | CAMU_WLCD_MODE | CAML_LCD_MODE, .muxregs = tdm_muxreg, .nmuxregs = ARRAY_SIZE(tdm_muxreg), }, }; static struct spear_pingroup tdm_pingroup = { .name = "tdm_grp", .pins = tdm_pins, .npins = ARRAY_SIZE(tdm_pins), .modemuxs = tdm_modemux, .nmodemuxs = ARRAY_SIZE(tdm_modemux), }; static const char *const tdm_grps[] = { "tdm_grp" }; static struct spear_function tdm_function = { .name = "tdm", .groups = tdm_grps, .ngroups = ARRAY_SIZE(tdm_grps), }; /* i2c_clk_pins */ static const unsigned i2c_clk_pins[] = { 45, 46, 47, 48 }; static struct spear_muxreg i2c_clk_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK, .val = 0, }, }; static struct spear_modemux i2c_clk_modemux[] = { { .modes = LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE | ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAML_LCD_MODE, .muxregs = i2c_clk_muxreg, .nmuxregs = ARRAY_SIZE(i2c_clk_muxreg), }, }; static struct spear_pingroup i2c_clk_pingroup = { .name = "i2c_clk_grp_grp", .pins = i2c_clk_pins, .npins = ARRAY_SIZE(i2c_clk_pins), .modemuxs = i2c_clk_modemux, .nmodemuxs = ARRAY_SIZE(i2c_clk_modemux), }; static const char *const i2c_grps[] = { "i2c_clk_grp" }; static struct spear_function i2c_function = { .name = "i2c1", .groups = i2c_grps, .ngroups = ARRAY_SIZE(i2c_grps), }; /* caml_pins */ static const unsigned caml_pins[] = { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 }; static struct spear_muxreg caml_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_MII_MASK, .val = 0, }, }; static struct spear_modemux caml_modemux[] = { { .modes = CAML_LCDW_MODE | CAML_LCD_MODE, .muxregs = caml_muxreg, .nmuxregs = ARRAY_SIZE(caml_muxreg), }, }; static struct spear_pingroup caml_pingroup = { .name = "caml_grp", .pins = caml_pins, .npins = ARRAY_SIZE(caml_pins), .modemuxs = caml_modemux, .nmodemuxs = ARRAY_SIZE(caml_modemux), }; /* camu_pins */ static const unsigned camu_pins[] = { 16, 17, 18, 19, 20, 21, 45, 46, 47, 48 }; static struct spear_muxreg camu_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK | PMX_MII_MASK, .val = 0, }, }; static struct spear_modemux camu_modemux[] = { { .modes = CAMU_LCD_MODE | CAMU_WLCD_MODE, .muxregs = camu_muxreg, .nmuxregs = ARRAY_SIZE(camu_muxreg), }, }; static struct spear_pingroup camu_pingroup = { .name = "camu_grp", .pins = camu_pins, .npins = ARRAY_SIZE(camu_pins), .modemuxs = camu_modemux, .nmodemuxs = ARRAY_SIZE(camu_modemux), }; static const char *const cam_grps[] = { "caml_grp", "camu_grp" }; static struct spear_function cam_function = { .name = "cam", .groups = cam_grps, .ngroups = ARRAY_SIZE(cam_grps), }; /* dac_pins */ static const unsigned dac_pins[] = { 43, 44 }; static struct spear_muxreg dac_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_0_1_MASK, .val = 0, }, }; static struct spear_modemux dac_modemux[] = { { .modes = ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE | CAMU_WLCD_MODE | CAML_LCD_MODE, .muxregs = dac_muxreg, .nmuxregs = ARRAY_SIZE(dac_muxreg), }, }; static struct spear_pingroup dac_pingroup = { .name = "dac_grp", .pins = dac_pins, .npins = ARRAY_SIZE(dac_pins), .modemuxs = dac_modemux, .nmodemuxs = ARRAY_SIZE(dac_modemux), }; static const char *const dac_grps[] = { "dac_grp" }; static struct spear_function dac_function = { .name = "dac", .groups = dac_grps, .ngroups = ARRAY_SIZE(dac_grps), }; /* i2s_pins */ static const unsigned i2s_pins[] = { 39, 40, 41, 42 }; static struct spear_muxreg i2s_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_UART0_MODEM_MASK, .val = 0, }, }; static struct spear_modemux i2s_modemux[] = { { .modes = LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE | ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE | CAMU_WLCD_MODE | CAML_LCD_MODE, .muxregs = i2s_muxreg, .nmuxregs = ARRAY_SIZE(i2s_muxreg), }, }; static struct spear_pingroup i2s_pingroup = { .name = "i2s_grp", .pins = i2s_pins, .npins = ARRAY_SIZE(i2s_pins), .modemuxs = i2s_modemux, .nmodemuxs = ARRAY_SIZE(i2s_modemux), }; static const char *const i2s_grps[] = { "i2s_grp" }; static struct spear_function i2s_function = { .name = "i2s", .groups = i2s_grps, .ngroups = ARRAY_SIZE(i2s_grps), }; /* sdhci_4bit_pins */ static const unsigned sdhci_4bit_pins[] = { 28, 29, 30, 31, 32, 33 }; static struct spear_muxreg sdhci_4bit_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK | PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK | PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK, .val = 0, }, }; static struct spear_modemux sdhci_4bit_modemux[] = { { .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE | CAMU_WLCD_MODE | CAML_LCD_MODE | ATA_PABX_WI2S_MODE, .muxregs = sdhci_4bit_muxreg, .nmuxregs = ARRAY_SIZE(sdhci_4bit_muxreg), }, }; static struct spear_pingroup sdhci_4bit_pingroup = { .name = "sdhci_4bit_grp", .pins = sdhci_4bit_pins, .npins = ARRAY_SIZE(sdhci_4bit_pins), .modemuxs = sdhci_4bit_modemux, .nmodemuxs = ARRAY_SIZE(sdhci_4bit_modemux), }; /* sdhci_8bit_pins */ static const unsigned sdhci_8bit_pins[] = { 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 }; static struct spear_muxreg sdhci_8bit_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK | PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK | PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK | PMX_MII_MASK, .val = 0, }, }; static struct spear_modemux sdhci_8bit_modemux[] = { { .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE | CAMU_WLCD_MODE | CAML_LCD_MODE, .muxregs = sdhci_8bit_muxreg, .nmuxregs = ARRAY_SIZE(sdhci_8bit_muxreg), }, }; static struct spear_pingroup sdhci_8bit_pingroup = { .name = "sdhci_8bit_grp", .pins = sdhci_8bit_pins, .npins = ARRAY_SIZE(sdhci_8bit_pins), .modemuxs = sdhci_8bit_modemux, .nmodemuxs = ARRAY_SIZE(sdhci_8bit_modemux), }; static const char *const sdhci_grps[] = { "sdhci_4bit_grp", "sdhci_8bit_grp" }; static struct spear_function sdhci_function = { .name = "sdhci", .groups = sdhci_grps, .ngroups = ARRAY_SIZE(sdhci_grps), }; /* gpio1_0_to_3_pins */ static const unsigned gpio1_0_to_3_pins[] = { 39, 40, 41, 42 }; static struct spear_muxreg gpio1_0_to_3_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_UART0_MODEM_MASK, .val = 0, }, }; static struct spear_modemux gpio1_0_to_3_modemux[] = { { .modes = PHOTO_FRAME_MODE, .muxregs = gpio1_0_to_3_muxreg, .nmuxregs = ARRAY_SIZE(gpio1_0_to_3_muxreg), }, }; static struct spear_pingroup gpio1_0_to_3_pingroup = { .name = "gpio1_0_to_3_grp", .pins = gpio1_0_to_3_pins, .npins = ARRAY_SIZE(gpio1_0_to_3_pins), .modemuxs = gpio1_0_to_3_modemux, .nmodemuxs = ARRAY_SIZE(gpio1_0_to_3_modemux), }; /* gpio1_4_to_7_pins */ static const unsigned gpio1_4_to_7_pins[] = { 43, 44, 45, 46 }; static struct spear_muxreg gpio1_4_to_7_muxreg[] = { { .reg = PMX_CONFIG_REG, .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK, .val = 0, }, }; static struct spear_modemux gpio1_4_to_7_modemux[] = { { .modes = PHOTO_FRAME_MODE, .muxregs = gpio1_4_to_7_muxreg, .nmuxregs = ARRAY_SIZE(gpio1_4_to_7_muxreg), }, }; static struct spear_pingroup gpio1_4_to_7_pingroup = { .name = "gpio1_4_to_7_grp", .pins = gpio1_4_to_7_pins, .npins = ARRAY_SIZE(gpio1_4_to_7_pins), .modemuxs = gpio1_4_to_7_modemux, .nmodemuxs = ARRAY_SIZE(gpio1_4_to_7_modemux), }; static const char *const gpio1_grps[] = { "gpio1_0_to_3_grp", "gpio1_4_to_7_grp" }; static struct spear_function gpio1_function = { .name = "gpio1", .groups = gpio1_grps, .ngroups = ARRAY_SIZE(gpio1_grps), }; /* pingroups */ static struct spear_pingroup *spear300_pingroups[] = { SPEAR3XX_COMMON_PINGROUPS, &fsmc_2chips_pingroup, &fsmc_4chips_pingroup, &clcd_lcdmode_pingroup, &clcd_pfmode_pingroup, &tdm_pingroup, &i2c_clk_pingroup, &caml_pingroup, &camu_pingroup, &dac_pingroup, &i2s_pingroup, &sdhci_4bit_pingroup, &sdhci_8bit_pingroup, &gpio1_0_to_3_pingroup, &gpio1_4_to_7_pingroup, }; /* functions */ static struct spear_function *spear300_functions[] = { SPEAR3XX_COMMON_FUNCTIONS, &fsmc_function, &clcd_function, &tdm_function, &i2c_function, &cam_function, &dac_function, &i2s_function, &sdhci_function, &gpio1_function, }; static struct of_device_id spear300_pinctrl_of_match[] __devinitdata = { { .compatible = "st,spear300-pinmux", }, {}, }; static int __devinit spear300_pinctrl_probe(struct platform_device *pdev) { int ret; spear3xx_machdata.groups = spear300_pingroups; spear3xx_machdata.ngroups = ARRAY_SIZE(spear300_pingroups); spear3xx_machdata.functions = spear300_functions; spear3xx_machdata.nfunctions = ARRAY_SIZE(spear300_functions); spear3xx_machdata.modes_supported = true; spear3xx_machdata.pmx_modes = spear300_pmx_modes; spear3xx_machdata.npmx_modes = ARRAY_SIZE(spear300_pmx_modes); pmx_init_addr(&spear3xx_machdata, PMX_CONFIG_REG); ret = spear_pinctrl_probe(pdev, &spear3xx_machdata); if (ret) return ret; return 0; } static int __devexit spear300_pinctrl_remove(struct platform_device *pdev) { return spear_pinctrl_remove(pdev); } static struct platform_driver spear300_pinctrl_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, .of_match_table = spear300_pinctrl_of_match, }, .probe = spear300_pinctrl_probe, .remove = __devexit_p(spear300_pinctrl_remove), }; static int __init spear300_pinctrl_init(void) { return platform_driver_register(&spear300_pinctrl_driver); } arch_initcall(spear300_pinctrl_init); static void __exit spear300_pinctrl_exit(void) { platform_driver_unregister(&spear300_pinctrl_driver); } module_exit(spear300_pinctrl_exit); MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>"); MODULE_DESCRIPTION("ST Microelectronics SPEAr300 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, spear300_pinctrl_of_match);