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>
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
new file mode 100644
index 0000000..df1cf72
--- /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 <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 "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