From d02a900b5952597b6beebd709d92ab392fa3005a Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap: Rename mmc-twl4030 files to hsmmc mmc-twl4030.[ch] no longer has any dependency on twl4030 and should be renamed to reflect that. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/hsmmc.c | 252 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100644 arch/arm/mach-omap2/hsmmc.c (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c new file mode 100644 index 00000000000..df1cf727331 --- /dev/null +++ b/arch/arm/mach-omap2/hsmmc.c @@ -0,0 +1,252 @@ +/* + * linux/arch/arm/mach-omap2/hsmmc.c + * + * Copyright (C) 2007-2008 Texas Instruments + * Copyright (C) 2008 Nokia Corporation + * Author: Texas Instruments + * + * 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 +#include +#include +#include +#include + +#include "hsmmc.h" + +#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) + +static u16 control_pbias_offset; +static u16 control_devconf1_offset; + +#define HSMMC_NAME_LEN 9 + +static struct twl_mmc_controller { + char name[HSMMC_NAME_LEN + 1]; +} hsmmc[OMAP34XX_NR_MMC]; + +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) + +static int twl4030_mmc_get_context_loss(struct device *dev) +{ + /* FIXME: PM DPS not implemented yet */ + return 0; +} + +#else +#define twl4030_mmc_get_context_loss NULL +#endif + +static void hsmmc1_before_set_reg(struct device *dev, int slot, + int power_on, int vdd) +{ + u32 reg, prog_io; + struct omap_mmc_platform_data *mmc = dev->platform_data; + + /* + * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the + * card with Vcc regulator (from twl4030 or whatever). OMAP has both + * 1.8V and 3.0V modes, controlled by the PBIAS register. + * + * In 8-bit modes, OMAP VMMC1A (for DAT4..7) needs a supply, which + * is most naturally TWL VSIM; those pins also use PBIAS. + * + * FIXME handle VMMC1A as needed ... + */ + if (power_on) { + if (cpu_is_omap2430()) { + reg = omap_ctrl_readl(OMAP243X_CONTROL_DEVCONF1); + if ((1 << vdd) >= MMC_VDD_30_31) + reg |= OMAP243X_MMC1_ACTIVE_OVERWRITE; + else + reg &= ~OMAP243X_MMC1_ACTIVE_OVERWRITE; + omap_ctrl_writel(reg, OMAP243X_CONTROL_DEVCONF1); + } + + if (mmc->slots[0].internal_clock) { + reg = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); + reg |= OMAP2_MMCSDIO1ADPCLKISEL; + omap_ctrl_writel(reg, OMAP2_CONTROL_DEVCONF0); + } + + reg = omap_ctrl_readl(control_pbias_offset); + if (cpu_is_omap3630()) { + /* Set MMC I/O to 52Mhz */ + prog_io = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); + prog_io |= OMAP3630_PRG_SDMMC1_SPEEDCTRL; + omap_ctrl_writel(prog_io, OMAP343X_CONTROL_PROG_IO1); + } else { + reg |= OMAP2_PBIASSPEEDCTRL0; + } + reg &= ~OMAP2_PBIASLITEPWRDNZ0; + omap_ctrl_writel(reg, control_pbias_offset); + } else { + reg = omap_ctrl_readl(control_pbias_offset); + reg &= ~OMAP2_PBIASLITEPWRDNZ0; + omap_ctrl_writel(reg, control_pbias_offset); + } +} + +static void hsmmc1_after_set_reg(struct device *dev, int slot, + int power_on, int vdd) +{ + u32 reg; + + /* 100ms delay required for PBIAS configuration */ + msleep(100); + + if (power_on) { + reg = omap_ctrl_readl(control_pbias_offset); + reg |= (OMAP2_PBIASLITEPWRDNZ0 | OMAP2_PBIASSPEEDCTRL0); + if ((1 << vdd) <= MMC_VDD_165_195) + reg &= ~OMAP2_PBIASLITEVMODE0; + else + reg |= OMAP2_PBIASLITEVMODE0; + omap_ctrl_writel(reg, control_pbias_offset); + } else { + reg = omap_ctrl_readl(control_pbias_offset); + reg |= (OMAP2_PBIASSPEEDCTRL0 | OMAP2_PBIASLITEPWRDNZ0 | + OMAP2_PBIASLITEVMODE0); + omap_ctrl_writel(reg, control_pbias_offset); + } +} + +static void hsmmc23_before_set_reg(struct device *dev, int slot, + int power_on, int vdd) +{ + struct omap_mmc_platform_data *mmc = dev->platform_data; + + if (power_on) { + /* Only MMC2 supports a CLKIN */ + if (mmc->slots[0].internal_clock) { + u32 reg; + + reg = omap_ctrl_readl(control_devconf1_offset); + reg |= OMAP2_MMCSDIO2ADPCLKISEL; + omap_ctrl_writel(reg, control_devconf1_offset); + } + } +} + +static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata; + +void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) +{ + struct twl4030_hsmmc_info *c; + int nr_hsmmc = ARRAY_SIZE(hsmmc_data); + int i; + + if (cpu_is_omap2430()) { + control_pbias_offset = OMAP243X_CONTROL_PBIAS_LITE; + control_devconf1_offset = OMAP243X_CONTROL_DEVCONF1; + } else { + control_pbias_offset = OMAP343X_CONTROL_PBIAS_LITE; + control_devconf1_offset = OMAP343X_CONTROL_DEVCONF1; + } + + for (c = controllers; c->mmc; c++) { + struct twl_mmc_controller *twl = hsmmc + c->mmc - 1; + struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1]; + + if (!c->mmc || c->mmc > nr_hsmmc) { + pr_debug("MMC%d: no such controller\n", c->mmc); + continue; + } + if (mmc) { + pr_debug("MMC%d: already configured\n", c->mmc); + continue; + } + + mmc = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL); + if (!mmc) { + pr_err("Cannot allocate memory for mmc device!\n"); + goto done; + } + + if (c->name) + strncpy(twl->name, c->name, HSMMC_NAME_LEN); + else + snprintf(twl->name, ARRAY_SIZE(twl->name), + "mmc%islot%i", c->mmc, 1); + mmc->slots[0].name = twl->name; + mmc->nr_slots = 1; + mmc->slots[0].wires = c->wires; + mmc->slots[0].internal_clock = !c->ext_clock; + mmc->dma_mask = 0xffffffff; + + mmc->get_context_loss_count = + twl4030_mmc_get_context_loss; + + mmc->slots[0].switch_pin = c->gpio_cd; + mmc->slots[0].gpio_wp = c->gpio_wp; + + if (c->cover_only) + mmc->slots[0].cover = 1; + + if (c->nonremovable) + mmc->slots[0].nonremovable = 1; + + if (c->power_saving) + mmc->slots[0].power_saving = 1; + + /* NOTE: MMC slots should have a Vcc regulator set up. + * This may be from a TWL4030-family chip, another + * controllable regulator, or a fixed supply. + * + * temporary HACK: ocr_mask instead of fixed supply + */ + mmc->slots[0].ocr_mask = c->ocr_mask; + + switch (c->mmc) { + case 1: + /* on-chip level shifting via PBIAS0/PBIAS1 */ + mmc->slots[0].before_set_reg = hsmmc1_before_set_reg; + mmc->slots[0].after_set_reg = hsmmc1_after_set_reg; + + /* Omap3630 HSMMC1 supports only 4-bit */ + if (cpu_is_omap3630() && c->wires > 4) { + c->wires = 4; + mmc->slots[0].wires = c->wires; + } + break; + case 2: + if (c->ext_clock) + c->transceiver = 1; + if (c->transceiver && c->wires > 4) + c->wires = 4; + /* FALLTHROUGH */ + case 3: + /* off-chip level shifting, or none */ + mmc->slots[0].before_set_reg = hsmmc23_before_set_reg; + mmc->slots[0].after_set_reg = NULL; + break; + default: + pr_err("MMC%d configuration not supported!\n", c->mmc); + kfree(mmc); + continue; + } + hsmmc_data[c->mmc - 1] = mmc; + } + + omap2_init_mmc(hsmmc_data, OMAP34XX_NR_MMC); + + /* pass the device nodes back to board setup code */ + for (c = controllers; c->mmc; c++) { + struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1]; + + if (!c->mmc || c->mmc > nr_hsmmc) + continue; + c->dev = mmc->dev; + } + +done: + for (i = 0; i < nr_hsmmc; i++) + kfree(hsmmc_data[i]); +} + +#endif -- cgit v1.2.3-70-g09d2 From 68ff04231ce9128d400f47762ae3c921be79cd49 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap: Rename hsmmc symbols to reflect independence from twl4030 hsmmc.[ch] no longer has any dependency on twl4030 and variable names should be renamed to reflect that. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-2430sdp.c | 4 ++-- arch/arm/mach-omap2/board-3430sdp.c | 4 ++-- arch/arm/mach-omap2/board-cm-t35.c | 4 ++-- arch/arm/mach-omap2/board-igep0020.c | 4 ++-- arch/arm/mach-omap2/board-ldp.c | 4 ++-- arch/arm/mach-omap2/board-omap3beagle.c | 4 ++-- arch/arm/mach-omap2/board-omap3evm.c | 4 ++-- arch/arm/mach-omap2/board-omap3pandora.c | 4 ++-- arch/arm/mach-omap2/board-omap3touchbook.c | 4 ++-- arch/arm/mach-omap2/board-overo.c | 4 ++-- arch/arm/mach-omap2/board-rx51-peripherals.c | 18 ++++++++---------- arch/arm/mach-omap2/board-zoom-peripherals.c | 4 ++-- arch/arm/mach-omap2/hsmmc.c | 24 ++++++++++++------------ arch/arm/mach-omap2/hsmmc.h | 6 +++--- 14 files changed, 45 insertions(+), 47 deletions(-) (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/board-2430sdp.c b/arch/arm/mach-omap2/board-2430sdp.c index a43c0943dbf..d6f55ef9059 100644 --- a/arch/arm/mach-omap2/board-2430sdp.c +++ b/arch/arm/mach-omap2/board-2430sdp.c @@ -182,7 +182,7 @@ static int __init omap2430_i2c_init(void) return 0; } -static struct twl4030_hsmmc_info mmc[] __initdata = { +static struct omap2_hsmmc_info mmc[] __initdata = { { .mmc = 1, .wires = 4, @@ -201,7 +201,7 @@ static void __init omap_2430sdp_init(void) platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices)); omap_serial_init(); - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); usb_musb_init(); board_smc91x_init(); diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c index 6c7261b6b06..5adef517a2b 100644 --- a/arch/arm/mach-omap2/board-3430sdp.c +++ b/arch/arm/mach-omap2/board-3430sdp.c @@ -328,7 +328,7 @@ static struct twl4030_bci_platform_data sdp3430_bci_data = { .tblsize = ARRAY_SIZE(sdp3430_batt_table), }; -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, /* 8 bits (default) requires S6.3 == ON, @@ -365,7 +365,7 @@ static int sdp3430_twl_gpio_setup(struct device *dev, */ mmc[0].gpio_cd = gpio + 0; mmc[1].gpio_cd = gpio + 1; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters ... we "know" the * regulators will be set up only *after* we return. diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c index ac3c9332d0f..8659c3e2ef6 100644 --- a/arch/arm/mach-omap2/board-cm-t35.c +++ b/arch/arm/mach-omap2/board-cm-t35.c @@ -593,7 +593,7 @@ static struct twl4030_keypad_data cm_t35_kp_data = { .rep = 1, }; -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 4, @@ -642,7 +642,7 @@ static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio, /* gpio + 0 is "mmc0_cd" (input/IRQ) */ mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters */ cm_t35_vmmc1_supply.dev = mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c index ea7bfbacedd..adc1b46fa04 100644 --- a/arch/arm/mach-omap2/board-igep0020.c +++ b/arch/arm/mach-omap2/board-igep0020.c @@ -121,7 +121,7 @@ static struct regulator_init_data igep2_vmmc1 = { .consumer_supplies = &igep2_vmmc1_supply, }; -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 4, @@ -142,7 +142,7 @@ static int igep2_twl_gpio_setup(struct device *dev, { /* gpio + 0 is "mmc0_cd" (input/IRQ) */ mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters ... we "know" the * regulators will be set up only *after* we return. diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index f2b47cb7275..095adcb642b 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -359,7 +359,7 @@ static int __init omap_i2c_init(void) return 0; } -static struct twl4030_hsmmc_info mmc[] __initdata = { +static struct omap2_hsmmc_info mmc[] __initdata = { { .mmc = 1, .wires = 4, @@ -396,7 +396,7 @@ static void __init omap_ldp_init(void) omap_serial_init(); usb_musb_init(); - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters */ ldp_vmmc1_supply.dev = mmc[0].dev; } diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 7812da065d2..1bae6991337 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -108,7 +108,7 @@ static struct platform_device omap3beagle_nand_device = { #include "sdram-micron-mt46h32m32lf-6.h" -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 8, @@ -147,7 +147,7 @@ static int beagle_twl_gpio_setup(struct device *dev, } /* gpio + 0 is "mmc0_cd" (input/IRQ) */ mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters */ beagle_vmmc1_supply.dev = mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 78724d85921..45227f39475 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -367,7 +367,7 @@ static struct regulator_init_data omap3evm_vsim = { .consumer_supplies = &omap3evm_vsim_supply, }; -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 4, @@ -407,7 +407,7 @@ static int omap3evm_twl_gpio_setup(struct device *dev, /* gpio + 0 is "mmc0_cd" (input/IRQ) */ omap_mux_init_gpio(63, OMAP_PIN_INPUT); mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters */ omap3evm_vmmc1_supply.dev = mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-omap3pandora.c b/arch/arm/mach-omap2/board-omap3pandora.c index 63437037fc9..9967b5d24b5 100644 --- a/arch/arm/mach-omap2/board-omap3pandora.c +++ b/arch/arm/mach-omap2/board-omap3pandora.c @@ -192,7 +192,7 @@ static struct twl4030_keypad_data pandora_kp_data = { .rep = 1, }; -static struct twl4030_hsmmc_info omap3pandora_mmc[] = { +static struct omap2_hsmmc_info omap3pandora_mmc[] = { { .mmc = 1, .wires = 4, @@ -231,7 +231,7 @@ static int omap3pandora_twl_gpio_setup(struct device *dev, /* gpio + {0,1} is "mmc{0,1}_cd" (input/IRQ) */ omap3pandora_mmc[0].gpio_cd = gpio + 0; omap3pandora_mmc[1].gpio_cd = gpio + 1; - twl4030_mmc_init(omap3pandora_mmc); + omap2_hsmmc_init(omap3pandora_mmc); /* link regulators to MMC adapters */ pandora_vmmc1_supply.dev = omap3pandora_mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c index 1e3f53c605c..8252ba49a66 100644 --- a/arch/arm/mach-omap2/board-omap3touchbook.c +++ b/arch/arm/mach-omap2/board-omap3touchbook.c @@ -122,7 +122,7 @@ static struct platform_device omap3touchbook_nand_device = { #include "sdram-micron-mt46h32m32lf-6.h" -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 8, @@ -161,7 +161,7 @@ static int touchbook_twl_gpio_setup(struct device *dev, } /* gpio + 0 is "mmc0_cd" (input/IRQ) */ mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters */ touchbook_vmmc1_supply.dev = mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 3fc918b0c65..7e6aa829274 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -272,7 +272,7 @@ static void __init overo_flash_init(void) } } -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] = { { .mmc = 1, .wires = 4, @@ -297,7 +297,7 @@ static struct regulator_consumer_supply overo_vmmc1_supply = { static int overo_twl_gpio_setup(struct device *dev, unsigned gpio, unsigned ngpio) { - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); overo_vmmc1_supply.dev = mmc[0].dev; diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index b2de2066fb0..ab07ca2d408 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -209,7 +209,7 @@ static struct twl4030_madc_platform_data rx51_madc_data = { .irq_line = 1, }; -static struct twl4030_hsmmc_info mmc[] = { +static struct omap2_hsmmc_info mmc[] __initdata = { { .name = "external", .mmc = 1, @@ -232,15 +232,18 @@ static struct twl4030_hsmmc_info mmc[] = { }; static struct regulator_consumer_supply rx51_vmmc1_supply = { - .supply = "vmmc", + .supply = "vmmc", + .dev_name = "mmci-omap-hs.0", }; static struct regulator_consumer_supply rx51_vmmc2_supply = { - .supply = "vmmc", + .supply = "vmmc", + .dev_name = "mmci-omap-hs.1", }; static struct regulator_consumer_supply rx51_vsim_supply = { - .supply = "vmmc_aux", + .supply = "vmmc_aux", + .dev_name = "mmci-omap-hs.1", }; static struct regulator_init_data rx51_vaux1 = { @@ -375,12 +378,6 @@ static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n) gpio_request(gpio + 7, "speaker_en"); gpio_direction_output(gpio + 7, 1); - /* set up MMC adapters, linking their regulators to them */ - twl4030_mmc_init(mmc); - rx51_vmmc1_supply.dev = mmc[0].dev; - rx51_vmmc2_supply.dev = mmc[1].dev; - rx51_vsim_supply.dev = mmc[1].dev; - return 0; } @@ -751,5 +748,6 @@ void __init rx51_peripherals_init(void) rx51_init_wl1251(); spi_register_board_info(rx51_peripherals_spi_board_info, ARRAY_SIZE(rx51_peripherals_spi_board_info)); + omap2_hsmmc_init(mmc); } diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c index 52940a426d9..4278d5e14bb 100755 --- a/arch/arm/mach-omap2/board-zoom-peripherals.c +++ b/arch/arm/mach-omap2/board-zoom-peripherals.c @@ -150,7 +150,7 @@ static struct regulator_init_data zoom_vsim = { .consumer_supplies = &zoom_vsim_supply, }; -static struct twl4030_hsmmc_info mmc[] __initdata = { +static struct omap2_hsmmc_info mmc[] __initdata = { { .name = "external", .mmc = 1, @@ -175,7 +175,7 @@ static int zoom_twl_gpio_setup(struct device *dev, { /* gpio + 0 is "mmc0_cd" (input/IRQ) */ mmc[0].gpio_cd = gpio + 0; - twl4030_mmc_init(mmc); + omap2_hsmmc_init(mmc); /* link regulators to MMC adapters ... we "know" the * regulators will be set up only *after* we return. diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index df1cf727331..2ba0d55c323 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -26,20 +26,20 @@ static u16 control_devconf1_offset; #define HSMMC_NAME_LEN 9 -static struct twl_mmc_controller { +static struct hsmmc_controller { char name[HSMMC_NAME_LEN + 1]; } hsmmc[OMAP34XX_NR_MMC]; #if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) -static int twl4030_mmc_get_context_loss(struct device *dev) +static int hsmmc_get_context_loss(struct device *dev) { /* FIXME: PM DPS not implemented yet */ return 0; } #else -#define twl4030_mmc_get_context_loss NULL +#define hsmmc_get_context_loss NULL #endif static void hsmmc1_before_set_reg(struct device *dev, int slot, @@ -135,9 +135,9 @@ static void hsmmc23_before_set_reg(struct device *dev, int slot, static struct omap_mmc_platform_data *hsmmc_data[OMAP34XX_NR_MMC] __initdata; -void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) +void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) { - struct twl4030_hsmmc_info *c; + struct omap2_hsmmc_info *c; int nr_hsmmc = ARRAY_SIZE(hsmmc_data); int i; @@ -150,7 +150,7 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) } for (c = controllers; c->mmc; c++) { - struct twl_mmc_controller *twl = hsmmc + c->mmc - 1; + struct hsmmc_controller *hc = hsmmc + c->mmc - 1; struct omap_mmc_platform_data *mmc = hsmmc_data[c->mmc - 1]; if (!c->mmc || c->mmc > nr_hsmmc) { @@ -162,25 +162,25 @@ void __init twl4030_mmc_init(struct twl4030_hsmmc_info *controllers) continue; } - mmc = kzalloc(sizeof(struct omap_mmc_platform_data), GFP_KERNEL); + mmc = kzalloc(sizeof(struct omap_mmc_platform_data), + GFP_KERNEL); if (!mmc) { pr_err("Cannot allocate memory for mmc device!\n"); goto done; } if (c->name) - strncpy(twl->name, c->name, HSMMC_NAME_LEN); + strncpy(hc->name, c->name, HSMMC_NAME_LEN); else - snprintf(twl->name, ARRAY_SIZE(twl->name), + snprintf(hc->name, ARRAY_SIZE(hc->name), "mmc%islot%i", c->mmc, 1); - mmc->slots[0].name = twl->name; + mmc->slots[0].name = hc->name; mmc->nr_slots = 1; mmc->slots[0].wires = c->wires; mmc->slots[0].internal_clock = !c->ext_clock; mmc->dma_mask = 0xffffffff; - mmc->get_context_loss_count = - twl4030_mmc_get_context_loss; + mmc->get_context_loss_count = hsmmc_get_context_loss; mmc->slots[0].switch_pin = c->gpio_cd; mmc->slots[0].gpio_wp = c->gpio_wp; diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index 87d67c10bde..e946b5f79be 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -6,7 +6,7 @@ * published by the Free Software Foundation. */ -struct twl4030_hsmmc_info { +struct omap2_hsmmc_info { u8 mmc; /* controller 1/2/3 */ u8 wires; /* 1/4/8 wires */ bool transceiver; /* MMC-2 option */ @@ -23,11 +23,11 @@ struct twl4030_hsmmc_info { #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) -void twl4030_mmc_init(struct twl4030_hsmmc_info *); +void omap2_hsmmc_init(struct omap2_hsmmc_info *); #else -static inline void twl4030_mmc_init(struct twl4030_hsmmc_info *info) +static inline void omap2_hsmmc_init(struct omap2_hsmmc_info *info) { } -- cgit v1.2.3-70-g09d2 From e3df0fb4132fff8717cb0c08403c12138fd3ae39 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap: Reconnect hsmmc context loss count Call the PM context-loss count function, now that there is a prototype for it. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/hsmmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 2ba0d55c323..cc7e77f0926 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "hsmmc.h" @@ -34,8 +35,7 @@ static struct hsmmc_controller { static int hsmmc_get_context_loss(struct device *dev) { - /* FIXME: PM DPS not implemented yet */ - return 0; + return omap_pm_get_dev_context_loss_count(dev); } #else -- cgit v1.2.3-70-g09d2 From ce6f00165d5314698afd04ee20cede156cfcc593 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap: RX51: Remux to pull eMMC lines down when powering off It has been discovered that, when eMMC is powered off, current will flow from OMAP eMMC data pull-ups to the eMMC voltage supply. Configuring pads for OMAP off-mode does not help because eMMC is powered off independently of OMAP off-mode. Hence the pads are now re-configured when eMMC is powered on or off. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 43 +++++++++++++++++++++++++++- arch/arm/mach-omap2/hsmmc.c | 8 ++++++ arch/arm/mach-omap2/hsmmc.h | 2 ++ arch/arm/plat-omap/include/plat/mmc.h | 1 + 4 files changed, 53 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index ab07ca2d408..4377a4cf36e 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -209,6 +209,46 @@ static struct twl4030_madc_platform_data rx51_madc_data = { .irq_line = 1, }; +/* Enable input logic and pull all lines up when eMMC is on. */ +static struct omap_board_mux rx51_mmc2_on_mux[] = { + OMAP3_MUX(SDMMC2_CMD, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT0, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT1, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT2, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT3, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT4, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT5, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT6, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT7, OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0), + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; + +/* Disable input logic and pull all lines down when eMMC is off. */ +static struct omap_board_mux rx51_mmc2_off_mux[] = { + OMAP3_MUX(SDMMC2_CMD, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT0, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT1, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT2, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT3, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT4, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT5, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT6, OMAP_PULL_ENA | OMAP_MUX_MODE0), + OMAP3_MUX(SDMMC2_DAT7, OMAP_PULL_ENA | OMAP_MUX_MODE0), + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; + +/* + * Current flows to eMMC when eMMC is off and the data lines are pulled up, + * so pull them down. N.B. we pull 8 lines because we are using 8 lines. + */ +static void rx51_mmc2_remux(struct device *dev, int slot, int power_on) +{ + if (power_on) + omap_mux_write_array(rx51_mmc2_on_mux); + else + omap_mux_write_array(rx51_mmc2_off_mux); +} + static struct omap2_hsmmc_info mmc[] __initdata = { { .name = "external", @@ -222,11 +262,12 @@ static struct omap2_hsmmc_info mmc[] __initdata = { { .name = "internal", .mmc = 2, - .wires = 8, + .wires = 8, /* See also rx51_mmc2_remux */ .gpio_cd = -EINVAL, .gpio_wp = -EINVAL, .nonremovable = true, .power_saving = true, + .remux = rx51_mmc2_remux, }, {} /* Terminator */ }; diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index cc7e77f0926..4a05c3722d5 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -48,6 +48,9 @@ static void hsmmc1_before_set_reg(struct device *dev, int slot, u32 reg, prog_io; struct omap_mmc_platform_data *mmc = dev->platform_data; + if (mmc->slots[0].remux) + mmc->slots[0].remux(dev, slot, power_on); + /* * Assume we power both OMAP VMMC1 (for CMD, CLK, DAT0..3) and the * card with Vcc regulator (from twl4030 or whatever). OMAP has both @@ -121,6 +124,9 @@ static void hsmmc23_before_set_reg(struct device *dev, int slot, { struct omap_mmc_platform_data *mmc = dev->platform_data; + if (mmc->slots[0].remux) + mmc->slots[0].remux(dev, slot, power_on); + if (power_on) { /* Only MMC2 supports a CLKIN */ if (mmc->slots[0].internal_clock) { @@ -185,6 +191,8 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) mmc->slots[0].switch_pin = c->gpio_cd; mmc->slots[0].gpio_wp = c->gpio_wp; + mmc->slots[0].remux = c->remux; + if (c->cover_only) mmc->slots[0].cover = 1; diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index e946b5f79be..f641f592ffa 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -19,6 +19,8 @@ struct omap2_hsmmc_info { char *name; /* or NULL for default */ struct device *dev; /* returned: pointer to mmc adapter */ int ocr_mask; /* temporary HACK */ + /* Remux (pad configuation) when powering on/off */ + void (*remux)(struct device *dev, int slot, int power_on); }; #if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index 515701bb47d..8b23d32895f 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -105,6 +105,7 @@ struct omap_mmc_platform_data { int (*get_ro)(struct device *dev, int slot); int (*set_sleep)(struct device *dev, int slot, int sleep, int vdd, int cardsleep); + void (*remux)(struct device *dev, int slot, int power_on); /* Call back before enabling / disabling regulators */ void (*before_set_reg)(struct device *dev, int slot, int power_on, int vdd); -- cgit v1.2.3-70-g09d2 From 1df58db8a25ec7656005f1dd161a9ede044551b7 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap_hsmmc: Allow for power saving without going off An eMMC may be always powered on, so that the lowest power saving state possible is sleeping. Add a field to the platform data to indicate that. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/hsmmc.c | 3 +++ arch/arm/mach-omap2/hsmmc.h | 1 + arch/arm/plat-omap/include/plat/mmc.h | 3 +++ drivers/mmc/host/omap_hsmmc.c | 6 ++++++ 4 files changed, 13 insertions(+) (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index 4a05c3722d5..e4ab123cd4d 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -202,6 +202,9 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) if (c->power_saving) mmc->slots[0].power_saving = 1; + if (c->no_off) + mmc->slots[0].no_off = 1; + /* NOTE: MMC slots should have a Vcc regulator set up. * This may be from a TWL4030-family chip, another * controllable regulator, or a fixed supply. diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index f641f592ffa..2453a7aeaf6 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -14,6 +14,7 @@ struct omap2_hsmmc_info { bool cover_only; /* No card detect - just cover switch */ bool nonremovable; /* Nonremovable e.g. eMMC */ bool power_saving; /* Try to sleep or power off when possible */ + bool no_off; /* power_saving and power is not to go off */ int gpio_cd; /* or -EINVAL */ int gpio_wp; /* or -EINVAL */ char *name; /* or NULL for default */ diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index 8b23d32895f..b46394955f3 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -96,6 +96,9 @@ struct omap_mmc_platform_data { /* Try to sleep or power off when possible */ unsigned power_saving:1; + /* If using power_saving and the MMC power is not to go off */ + unsigned no_off:1; + int switch_pin; /* gpio (card detect) */ int gpio_wp; /* gpio (write protect) */ diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 2c5e15d9f86..e15d0f42569 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1656,6 +1656,9 @@ static int omap_hsmmc_disabled_to_sleep(struct omap_hsmmc_host *host) dev_dbg(mmc_dev(host->mmc), "DISABLED -> %s\n", host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP"); + if (mmc_slot(host).no_off) + return 0; + if ((host->mmc->caps & MMC_CAP_NONREMOVABLE) || mmc_slot(host).card_detect || (mmc_slot(host).get_cover_state && @@ -1671,6 +1674,9 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host) if (!mmc_try_claim_host(host->mmc)) return 0; + if (mmc_slot(host).no_off) + return 0; + if (!((host->mmc->caps & MMC_CAP_NONREMOVABLE) || mmc_slot(host).card_detect || (mmc_slot(host).get_cover_state && -- cgit v1.2.3-70-g09d2 From e0eb2424469ec2333885672d3db8bd07d322455d Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 15 Feb 2010 10:03:34 -0800 Subject: omap_hsmmc: Allow for a shared VccQ EMMC can have two voltage supplies, Vcc and VccQ which are implemented in the code as consumer supplies vmmc and vmmc_aux. If the regulator that supplies vmmc_aux is shared with other consumers, then sending it to sleep will disrupt those consumers. However, the TWL4030-family regulators may have OFF remapped to SLEEP, in which case 'regulator_disable()' will put the regulator to sleep only when all consumers are disabled - which is the desired behaviour. This patch adds a platform data field to allow that option. Signed-off-by: Adrian Hunter Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/hsmmc.c | 3 +++ arch/arm/mach-omap2/hsmmc.h | 1 + arch/arm/plat-omap/include/plat/mmc.h | 3 +++ drivers/mmc/host/omap_hsmmc.c | 16 +++++++++++++++- 4 files changed, 22 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/hsmmc.c') diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index e4ab123cd4d..9ad229594b4 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -205,6 +205,9 @@ void __init omap2_hsmmc_init(struct omap2_hsmmc_info *controllers) if (c->no_off) mmc->slots[0].no_off = 1; + if (c->vcc_aux_disable_is_sleep) + mmc->slots[0].vcc_aux_disable_is_sleep = 1; + /* NOTE: MMC slots should have a Vcc regulator set up. * This may be from a TWL4030-family chip, another * controllable regulator, or a fixed supply. diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h index 2453a7aeaf6..36f0ba8d89e 100644 --- a/arch/arm/mach-omap2/hsmmc.h +++ b/arch/arm/mach-omap2/hsmmc.h @@ -15,6 +15,7 @@ struct omap2_hsmmc_info { bool nonremovable; /* Nonremovable e.g. eMMC */ bool power_saving; /* Try to sleep or power off when possible */ bool no_off; /* power_saving and power is not to go off */ + bool vcc_aux_disable_is_sleep; /* Regulator off remapped to sleep */ int gpio_cd; /* or -EINVAL */ int gpio_wp; /* or -EINVAL */ char *name; /* or NULL for default */ diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index b46394955f3..a1bac07c89e 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -99,6 +99,9 @@ struct omap_mmc_platform_data { /* If using power_saving and the MMC power is not to go off */ unsigned no_off:1; + /* Regulator off remapped to sleep */ + unsigned vcc_aux_disable_is_sleep:1; + int switch_pin; /* gpio (card detect) */ int gpio_wp; /* gpio (write protect) */ diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index d2fad587f37..af374771bed 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -347,7 +347,14 @@ static int omap_hsmmc_23_set_sleep(struct device *dev, int slot, int sleep, err = regulator_set_mode(host->vcc, mode); if (err) return err; - return regulator_set_mode(host->vcc_aux, mode); + + if (!mmc_slot(host).vcc_aux_disable_is_sleep) + return regulator_set_mode(host->vcc_aux, mode); + + if (sleep) + return regulator_disable(host->vcc_aux); + else + return regulator_enable(host->vcc_aux); } static int omap_hsmmc_gpio_init(struct omap_mmc_platform_data *pdata) @@ -1982,6 +1989,13 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev) else mmc->ops = &omap_hsmmc_ops; + /* + * If regulator_disable can only put vcc_aux to sleep then there is + * no off state. + */ + if (mmc_slot(host).vcc_aux_disable_is_sleep) + mmc_slot(host).no_off = 1; + mmc->f_min = 400000; mmc->f_max = 52000000; -- cgit v1.2.3-70-g09d2