diff options
author | Adrian Hunter <adrian.hunter@nokia.com> | 2010-02-15 10:03:34 -0800 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2010-02-15 10:03:34 -0800 |
commit | d02a900b5952597b6beebd709d92ab392fa3005a (patch) | |
tree | 0fcf2dc829872dac48bcdb98c02ca632159f9b11 /arch/arm/mach-omap2/mmc-twl4030.c | |
parent | db0fefc5119e2cfaa8f57565331e0abe47f0801e (diff) |
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 <adrian.hunter@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/mmc-twl4030.c')
-rw-r--r-- | arch/arm/mach-omap2/mmc-twl4030.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/arch/arm/mach-omap2/mmc-twl4030.c b/arch/arm/mach-omap2/mmc-twl4030.c deleted file mode 100644 index 6f8f29e99ff..00000000000 --- a/arch/arm/mach-omap2/mmc-twl4030.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/mmc-twl4030.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 <linux/kernel.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/delay.h> -#include <mach/hardware.h> -#include <plat/control.h> -#include <plat/mmc.h> - -#include "mmc-twl4030.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 |