From: Carlos Eduardo Aguiar Date: Fri, 30 Nov 2007 05:52:53 +0000 (-0400) Subject: ARM: OMAP1: Use MMC multislot structures for Siemens SX1 board X-Git-Tag: firefly_0821_release~22494^2^2~6 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=087c50302fbd608118e7c0f27a95dc552ad2f53b;p=firefly-linux-kernel-4.4.55.git ARM: OMAP1: Use MMC multislot structures for Siemens SX1 board Use MMC multislot structures for Siemens SX1 board Signed-off-by: Carlos Eduardo Aguiar Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile index 416a778611b4..015a66b3ca8e 100644 --- a/arch/arm/mach-omap1/Makefile +++ b/arch/arm/mach-omap1/Makefile @@ -26,7 +26,7 @@ obj-$(CONFIG_MACH_OMAP_PALMZ71) += board-palmz71.o obj-$(CONFIG_MACH_OMAP_PALMTT) += board-palmtt.o obj-$(CONFIG_MACH_NOKIA770) += board-nokia770.o obj-$(CONFIG_MACH_AMS_DELTA) += board-ams-delta.o -obj-$(CONFIG_MACH_SX1) += board-sx1.o +obj-$(CONFIG_MACH_SX1) += board-sx1.o board-sx1-mmc.o ifeq ($(CONFIG_ARCH_OMAP15XX),y) # Innovator-1510 FPGA diff --git a/arch/arm/mach-omap1/board-sx1-mmc.c b/arch/arm/mach-omap1/board-sx1-mmc.c new file mode 100644 index 000000000000..8c93d47719e8 --- /dev/null +++ b/arch/arm/mach-omap1/board-sx1-mmc.c @@ -0,0 +1,124 @@ +/* + * linux/arch/arm/mach-omap1/board-sx1-mmc.c + * + * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT + * Author: Carlos Eduardo Aguiar + * + * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is: + * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT + * + * 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 +#include +#include + +#ifdef CONFIG_MMC_OMAP +static int slot_cover_open; +static struct device *mmc_device; + +static int sx1_mmc_set_power(struct device *dev, int slot, int power_on, + int vdd) +{ + int err; + u8 dat = 0; + +#ifdef CONFIG_MMC_DEBUG + dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, + power_on ? "on" : "off", vdd); +#endif + + if (slot != 0) { + dev_err(dev, "No such slot %d\n", slot + 1); + return -ENODEV; + } + + err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); + if (err < 0) + return err; + + if (power_on) + dat |= SOFIA_MMC_POWER; + else + dat &= ~SOFIA_MMC_POWER; + + return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); +} + +static int sx1_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) +{ +#ifdef CONFIG_MMC_DEBUG + dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1, + bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); +#endif + if (slot != 0) { + dev_err(dev, "No such slot %d\n", slot + 1); + return -ENODEV; + } + + return 0; +} + +static int sx1_mmc_get_cover_state(struct device *dev, int slot) +{ + BUG_ON(slot != 0); + + return slot_cover_open; +} + +void sx1_mmc_slot_cover_handler(void *arg, int state) +{ + if (mmc_device == NULL) + return; + + slot_cover_open = state; + omap_mmc_notify_cover_event(mmc_device, 0, state); +} + +static int sx1_mmc_late_init(struct device *dev) +{ + int ret = 0; + + mmc_device = dev; + + return ret; +} + +static void sx1_mmc_cleanup(struct device *dev) +{ +} + +static struct omap_mmc_platform_data sx1_mmc_data = { + .nr_slots = 1, + .switch_slot = NULL, + .init = sx1_mmc_late_init, + .cleanup = sx1_mmc_cleanup, + .slots[0] = { + .set_power = sx1_mmc_set_power, + .set_bus_mode = sx1_mmc_set_bus_mode, + .get_ro = NULL, + .get_cover_state = sx1_mmc_get_cover_state, + .ocr_mask = MMC_VDD_28_29 | MMC_VDD_30_31 | + MMC_VDD_32_33 | MMC_VDD_33_34, + .name = "mmcblk", + }, +}; + +void __init sx1_mmc_init(void) +{ + omap_set_mmc_info(1, &sx1_mmc_data); +} + +#else + +void __init sx1_mmc_init(void) +{ +} + +void sx1_mmc_slot_cover_handler(void *arg, int state) +{ +} +#endif diff --git a/arch/arm/mach-omap1/board-sx1.c b/arch/arm/mach-omap1/board-sx1.c index 2743d639aa05..be3ecd8c890e 100644 --- a/arch/arm/mach-omap1/board-sx1.c +++ b/arch/arm/mach-omap1/board-sx1.c @@ -44,7 +44,7 @@ #include /* Write to I2C device */ -int i2c_write_byte(u8 devaddr, u8 regoffset, u8 value) +int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value) { struct i2c_adapter *adap; int err; @@ -67,7 +67,7 @@ int i2c_write_byte(u8 devaddr, u8 regoffset, u8 value) } /* Read from I2C device */ -int i2c_read_byte(u8 devaddr, u8 regoffset, u8 * value) +int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value) { struct i2c_adapter *adap; int err; @@ -101,66 +101,55 @@ int sx1_setkeylight(u8 keylight) { if (keylight > SOFIA_MAX_LIGHT_VAL) keylight = SOFIA_MAX_LIGHT_VAL; - return i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight); + return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight); } /* get current keylight intensity */ int sx1_getkeylight(u8 * keylight) { - return i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight); + return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_KEYLIGHT_REG, keylight); } /* set LCD backlight intensity */ int sx1_setbacklight(u8 backlight) { if (backlight > SOFIA_MAX_LIGHT_VAL) backlight = SOFIA_MAX_LIGHT_VAL; - return i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG, backlight); + return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG, + backlight); } /* get current LCD backlight intensity */ int sx1_getbacklight (u8 * backlight) { - return i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG, backlight); + return sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_BACKLIGHT_REG, + backlight); } /* set LCD backlight power on/off */ int sx1_setmmipower(u8 onoff) { int err; u8 dat = 0; - err = i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); + err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); if (err < 0) return err; if (onoff) dat |= SOFIA_MMILIGHT_POWER; else dat &= ~SOFIA_MMILIGHT_POWER; - return i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); -} -/* set MMC power on/off */ -int sx1_setmmcpower(u8 onoff) -{ - int err; - u8 dat = 0; - err = i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); - if (err < 0) - return err; - if (onoff) - dat |= SOFIA_MMC_POWER; - else - dat &= ~SOFIA_MMC_POWER; - return i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); + return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); } + /* set USB power on/off */ int sx1_setusbpower(u8 onoff) { int err; u8 dat = 0; - err = i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); + err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); if (err < 0) return err; if (onoff) dat |= SOFIA_USB_POWER; else dat &= ~SOFIA_USB_POWER; - return i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); + return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); } EXPORT_SYMBOL(sx1_setkeylight); @@ -168,7 +157,6 @@ EXPORT_SYMBOL(sx1_getkeylight); EXPORT_SYMBOL(sx1_setbacklight); EXPORT_SYMBOL(sx1_getbacklight); EXPORT_SYMBOL(sx1_setmmipower); -EXPORT_SYMBOL(sx1_setmmcpower); EXPORT_SYMBOL(sx1_setusbpower); /*----------- Keypad -------------------------*/ @@ -454,6 +442,7 @@ static void __init omap_sx1_init(void) omap_board_config = sx1_config; omap_board_config_size = ARRAY_SIZE(sx1_config); omap_serial_init(); + sx1_mmc_init(); /* turn on USB power */ /* sx1_setusbpower(1); cant do it here because i2c is not ready */ diff --git a/include/asm-arm/arch-omap/board-sx1.h b/include/asm-arm/arch-omap/board-sx1.h index 2bb8dd6e2d14..355adbdaae33 100644 --- a/include/asm-arm/arch-omap/board-sx1.h +++ b/include/asm-arm/arch-omap/board-sx1.h @@ -41,6 +41,12 @@ int sx1_getkeylight(u8 *keylight); int sx1_setmmipower(u8 onoff); int sx1_setusbpower(u8 onoff); -int sx1_setmmcpower(u8 onoff); +int sx1_i2c_read_byte(u8 devaddr, u8 regoffset, u8 *value); +int sx1_i2c_write_byte(u8 devaddr, u8 regoffset, u8 value); + +/* MMC prototypes */ + +extern void sx1_mmc_init(void); +extern void sx1_mmc_slot_cover_handler(void *arg, int state); #endif /* __ASM_ARCH_SX1_I2C_CHIPS_H */