12 files changed, 323 insertions, 8 deletions

diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index 7ff8020d4d24..704610648a25 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -15,7 +15,7 @@ obj-$(CONFIG_ARCH_QSD8X50) += sirc.o
 obj-$(CONFIG_MSM_SMD) += smd.o smd_debug.o
 obj-$(CONFIG_MSM_SMD) += last_radio_log.o
 
-obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o devices-msm7x00.o
+obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
 obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o
 obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o
 obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o
diff --git a/arch/arm/mach-msm/acpuclock-arm11.c b/arch/arm/mach-msm/acpuclock-arm11.c
index f060a3959a75..7ffbd987eb5d 100644
--- a/arch/arm/mach-msm/acpuclock-arm11.c
+++ b/arch/arm/mach-msm/acpuclock-arm11.c
@@ -17,7 +17,6 @@
  *
  */
 
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/list.h>
diff --git a/arch/arm/mach-msm/board-trout-gpio.c b/arch/arm/mach-msm/board-trout-gpio.c
index 523d213bf79e..c50f3afc3134 100644
--- a/arch/arm/mach-msm/board-trout-gpio.c
+++ b/arch/arm/mach-msm/board-trout-gpio.c
@@ -15,10 +15,20 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/interrupt.h>
 #include <linux/gpio.h>
 
 #include "board-trout.h"
 
+static uint8_t trout_int_mask[2] = {
+	[0] = 0xff, /* mask all interrupts */
+	[1] = 0xff,
+};
+static uint8_t trout_sleep_int_mask[] = {
+	[0] = 0xff,
+	[1] = 0xff,
+};
+
 struct msm_gpio_chip {
 	struct gpio_chip	chip;
 	void __iomem		*reg;	/* Base of register bank */
@@ -95,16 +105,121 @@ static struct msm_gpio_chip msm_gpio_banks[] = {
 	TROUT_GPIO_BANK("VIRTUAL", 0x12, TROUT_GPIO_VIRTUAL_BASE, 0),
 };
 
+static void trout_gpio_irq_ack(unsigned int irq)
+{
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_STAT_REG(bank);
+	/*printk(KERN_INFO "trout_gpio_irq_ack irq %d\n", irq);*/
+	writeb(mask, TROUT_CPLD_BASE + reg);
+}
+
+static void trout_gpio_irq_mask(unsigned int irq)
+{
+	unsigned long flags;
+	uint8_t reg_val;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_MASK_REG(bank);
+
+	local_irq_save(flags);
+	reg_val = trout_int_mask[bank] |= mask;
+	/*printk(KERN_INFO "trout_gpio_irq_mask irq %d => %d:%02x\n",
+	       irq, bank, reg_val);*/
+	writeb(reg_val, TROUT_CPLD_BASE + reg);
+	local_irq_restore(flags);
+}
+
+static void trout_gpio_irq_unmask(unsigned int irq)
+{
+	unsigned long flags;
+	uint8_t reg_val;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+	int reg = TROUT_BANK_TO_MASK_REG(bank);
+
+	local_irq_save(flags);
+	reg_val = trout_int_mask[bank] &= ~mask;
+	/*printk(KERN_INFO "trout_gpio_irq_unmask irq %d => %d:%02x\n",
+	       irq, bank, reg_val);*/
+	writeb(reg_val, TROUT_CPLD_BASE + reg);
+	local_irq_restore(flags);
+}
+
+int trout_gpio_irq_set_wake(unsigned int irq, unsigned int on)
+{
+	unsigned long flags;
+	int bank = TROUT_INT_TO_BANK(irq);
+	uint8_t mask = TROUT_INT_TO_MASK(irq);
+
+	local_irq_save(flags);
+	if(on)
+		trout_sleep_int_mask[bank] &= ~mask;
+	else
+		trout_sleep_int_mask[bank] |= mask;
+	local_irq_restore(flags);
+	return 0;
+}
+
+static void trout_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	int j, m;
+	unsigned v;
+	int bank;
+	int stat_reg;
+	int int_base = TROUT_INT_START;
+	uint8_t int_mask;
+
+	for (bank = 0; bank < 2; bank++) {
+		stat_reg = TROUT_BANK_TO_STAT_REG(bank);
+		v = readb(TROUT_CPLD_BASE + stat_reg);
+		int_mask = trout_int_mask[bank];
+		if (v & int_mask) {
+			writeb(v & int_mask, TROUT_CPLD_BASE + stat_reg);
+			printk(KERN_ERR "trout_gpio_irq_handler: got masked "
+			       "interrupt: %d:%02x\n", bank, v & int_mask);
+		}
+		v &= ~int_mask;
+		while (v) {
+			m = v & -v;
+			j = fls(m) - 1;
+			/*printk(KERN_INFO "msm_gpio_irq_handler %d:%02x %02x b"
+			       "it %d irq %d\n", bank, v, m, j, int_base + j);*/
+			v &= ~m;
+			generic_handle_irq(int_base + j);
+		}
+		int_base += TROUT_INT_BANK0_COUNT;
+	}
+	desc->chip->ack(irq);
+}
+
+static struct irq_chip trout_gpio_irq_chip = {
+	.name      = "troutgpio",
+	.ack       = trout_gpio_irq_ack,
+	.mask      = trout_gpio_irq_mask,
+	.unmask    = trout_gpio_irq_unmask,
+	.set_wake  = trout_gpio_irq_set_wake,
+};
+
 /*
  * Called from the processor-specific init to enable GPIO pin support.
  */
 int __init trout_init_gpio(void)
 {
 	int i;
+	for(i = TROUT_INT_START; i <= TROUT_INT_END; i++) {
+		set_irq_chip(i, &trout_gpio_irq_chip);
+		set_irq_handler(i, handle_edge_irq);
+		set_irq_flags(i, IRQF_VALID);
+	}
 
 	for (i = 0; i < ARRAY_SIZE(msm_gpio_banks); i++)
 		gpiochip_add(&msm_gpio_banks[i].chip);
 
+	set_irq_type(MSM_GPIO_TO_INT(17), IRQF_TRIGGER_HIGH);
+	set_irq_chained_handler(MSM_GPIO_TO_INT(17), trout_gpio_irq_handler);
+	set_irq_wake(MSM_GPIO_TO_INT(17), 1);
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-msm/board-trout-mmc.c b/arch/arm/mach-msm/board-trout-mmc.c
new file mode 100644
index 000000000000..44be8464657b
--- /dev/null
+++ b/arch/arm/mach-msm/board-trout-mmc.c
@@ -0,0 +1,186 @@
+/* linux/arch/arm/mach-msm/board-trout-mmc.c
+** Author: Brian Swetland <swetland@google.com>
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_ids.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
+
+#include <asm/gpio.h>
+#include <asm/io.h>
+
+#include <mach/vreg.h>
+
+#include <mach/mmc.h>
+
+#include "devices.h"
+
+#include "board-trout.h"
+
+#include "proc_comm.h"
+
+#define DEBUG_SDSLOT_VDD 1
+
+/* ---- COMMON ---- */
+static void config_gpio_table(uint32_t *table, int len)
+{
+	int n;
+	unsigned id;
+	for(n = 0; n < len; n++) {
+		id = table[n];
+		msm_proc_comm(PCOM_RPC_GPIO_TLMM_CONFIG_EX, &id, 0);
+	}
+}
+
+/* ---- SDCARD ---- */
+
+static uint32_t sdcard_on_gpio_table[] = {
+	PCOM_GPIO_CFG(62, 2, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_8MA), /* CLK */
+	PCOM_GPIO_CFG(63, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* CMD */
+	PCOM_GPIO_CFG(64, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT3 */
+	PCOM_GPIO_CFG(65, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_8MA), /* DAT2 */
+	PCOM_GPIO_CFG(66, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT1 */
+	PCOM_GPIO_CFG(67, 2, GPIO_OUTPUT, GPIO_PULL_UP, GPIO_4MA), /* DAT0 */
+};
+
+static uint32_t sdcard_off_gpio_table[] = {
+	PCOM_GPIO_CFG(62, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CLK */
+	PCOM_GPIO_CFG(63, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* CMD */
+	PCOM_GPIO_CFG(64, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT3 */
+	PCOM_GPIO_CFG(65, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT2 */
+	PCOM_GPIO_CFG(66, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT1 */
+	PCOM_GPIO_CFG(67, 0, GPIO_OUTPUT, GPIO_NO_PULL, GPIO_4MA), /* DAT0 */
+};
+
+static uint opt_disable_sdcard;
+
+static int __init trout_disablesdcard_setup(char *str)
+{
+	int cal = simple_strtol(str, NULL, 0);
+	
+	opt_disable_sdcard = cal;
+	return 1;
+}
+
+__setup("board_trout.disable_sdcard=", trout_disablesdcard_setup);
+
+static struct vreg *vreg_sdslot;	/* SD slot power */
+
+struct mmc_vdd_xlat {
+	int mask;
+	int level;
+};
+
+static struct mmc_vdd_xlat mmc_vdd_table[] = {
+	{ MMC_VDD_165_195,	1800 },
+	{ MMC_VDD_20_21,	2050 },
+	{ MMC_VDD_21_22,	2150 },
+	{ MMC_VDD_22_23,	2250 },
+	{ MMC_VDD_23_24,	2350 },
+	{ MMC_VDD_24_25,	2450 },
+	{ MMC_VDD_25_26,	2550 },
+	{ MMC_VDD_26_27,	2650 },
+	{ MMC_VDD_27_28,	2750 },
+	{ MMC_VDD_28_29,	2850 },
+	{ MMC_VDD_29_30,	2950 },
+};
+
+static unsigned int sdslot_vdd = 0xffffffff;
+static unsigned int sdslot_vreg_enabled;
+
+static uint32_t trout_sdslot_switchvdd(struct device *dev, unsigned int vdd)
+{
+	int i, rc;
+
+	BUG_ON(!vreg_sdslot);
+
+	if (vdd == sdslot_vdd)
+		return 0;
+
+	sdslot_vdd = vdd;
+
+	if (vdd == 0) {
+#if DEBUG_SDSLOT_VDD
+		printk("%s: Disabling SD slot power\n", __func__);
+#endif
+		config_gpio_table(sdcard_off_gpio_table,
+				  ARRAY_SIZE(sdcard_off_gpio_table));
+		vreg_disable(vreg_sdslot);
+		sdslot_vreg_enabled = 0;
+		return 0;
+	}
+
+	if (!sdslot_vreg_enabled) {
+		rc = vreg_enable(vreg_sdslot);
+		if (rc) {
+			printk(KERN_ERR "%s: Error enabling vreg (%d)\n",
+			       __func__, rc);
+		}
+		config_gpio_table(sdcard_on_gpio_table,
+				  ARRAY_SIZE(sdcard_on_gpio_table));
+		sdslot_vreg_enabled = 1;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(mmc_vdd_table); i++) {
+		if (mmc_vdd_table[i].mask == (1 << vdd)) {
+#if DEBUG_SDSLOT_VDD
+			printk("%s: Setting level to %u\n",
+			        __func__, mmc_vdd_table[i].level);
+#endif
+			rc = vreg_set_level(vreg_sdslot,
+					    mmc_vdd_table[i].level);
+			if (rc) {
+				printk(KERN_ERR
+				       "%s: Error setting vreg level (%d)\n",
+				       __func__, rc);
+			}
+			return 0;
+		}
+	}
+
+	printk(KERN_ERR "%s: Invalid VDD %d specified\n", __func__, vdd);
+	return 0;
+}
+
+static unsigned int trout_sdslot_status(struct device *dev)
+{
+	unsigned int status;
+
+	status = (unsigned int) gpio_get_value(TROUT_GPIO_SDMC_CD_N);
+	return (!status);
+}
+
+#define TROUT_MMC_VDD	MMC_VDD_165_195 | MMC_VDD_20_21 | MMC_VDD_21_22 \
+			| MMC_VDD_22_23 | MMC_VDD_23_24 | MMC_VDD_24_25 \
+			| MMC_VDD_25_26 | MMC_VDD_26_27 | MMC_VDD_27_28 \
+			| MMC_VDD_28_29 | MMC_VDD_29_30
+
+static struct msm_mmc_platform_data trout_sdslot_data = {
+	.ocr_mask	= TROUT_MMC_VDD,
+	.status		= trout_sdslot_status,
+	.translate_vdd	= trout_sdslot_switchvdd,
+};
+
+int __init trout_init_mmc(unsigned int sys_rev)
+{
+	sdslot_vreg_enabled = 0;
+
+	vreg_sdslot = vreg_get(0, "gp6");
+	if (IS_ERR(vreg_sdslot))
+		return PTR_ERR(vreg_sdslot);
+
+	set_irq_wake(TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 1);
+
+	if (!opt_disable_sdcard)
+		msm_add_sdcc(2, &trout_sdslot_data,
+			     TROUT_GPIO_TO_INT(TROUT_GPIO_SDMC_CD_N), 0);
+	else
+		printk(KERN_INFO "trout: SD-Card interface disabled\n");
+	return 0;
+}
+
diff --git a/arch/arm/mach-msm/board-trout.c b/arch/arm/mach-msm/board-trout.c
index e69a1502e4e8..469e0be3499d 100644
--- a/arch/arm/mach-msm/board-trout.c
+++ b/arch/arm/mach-msm/board-trout.c
@@ -30,6 +30,8 @@
 #include "devices.h"
 #include "board-trout.h"
 
+extern int trout_init_mmc(unsigned int);
+
 static struct platform_device *devices[] __initdata = {
 	&msm_device_uart3,
 	&msm_device_smd,
@@ -55,7 +57,16 @@ static void __init trout_fixup(struct machine_desc *desc, struct tag *tags,
 
 static void __init trout_init(void)
 {
+	int rc;
+
 	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+#ifdef CONFIG_MMC
+        rc = trout_init_mmc(system_rev);
+        if (rc)
+                printk(KERN_CRIT "%s: MMC init failure (%d)\n", __func__, rc);
+#endif
+
 }
 
 static struct map_desc trout_io_desc[] __initdata = {
diff --git a/arch/arm/mach-msm/clock.c b/arch/arm/mach-msm/clock.c
index 9cb1276ab749..c57210f4f06a 100644
--- a/arch/arm/mach-msm/clock.c
+++ b/arch/arm/mach-msm/clock.c
@@ -14,7 +14,6 @@
  *
  */
 
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
diff --git a/arch/arm/mach-msm/devices-msm7x00.c b/arch/arm/mach-msm/devices-msm7x00.c
index fde9d8f69f10..4e8c0bcdc92d 100644
--- a/arch/arm/mach-msm/devices-msm7x00.c
+++ b/arch/arm/mach-msm/devices-msm7x00.c
@@ -322,7 +322,8 @@ static struct platform_device *msm_sdcc_devices[] __initdata = {
 	&msm_device_sdc4,
 };
 
-int __init msm_add_sdcc(unsigned int controller, struct mmc_platform_data *plat,
+int __init msm_add_sdcc(unsigned int controller,
+			struct msm_mmc_platform_data *plat,
 			unsigned int stat_irq, unsigned long stat_irq_flags)
 {
 	struct platform_device	*pdev;
diff --git a/arch/arm/mach-msm/include/mach/board.h b/arch/arm/mach-msm/include/mach/board.h
index e302fbdc439b..5a79bcf50413 100644
--- a/arch/arm/mach-msm/include/mach/board.h
+++ b/arch/arm/mach-msm/include/mach/board.h
@@ -18,6 +18,7 @@
 #define __ASM_ARCH_MSM_BOARD_H
 
 #include <linux/types.h>
+#include <mach/mmc.h>
 
 /* platform device data structures */
 
@@ -40,5 +41,8 @@ void __init msm_init_irq(void);
 void __init msm_init_gpio(void);
 void __init msm_clock_init(struct clk *clock_tbl, unsigned num_clocks);
 void __init msm_acpu_clock_init(struct msm_acpu_clock_platform_data *);
+int __init msm_add_sdcc(unsigned int controller,
+			struct msm_mmc_platform_data *plat,
+			unsigned int stat_irq, unsigned long stat_irq_flags);
 
 #endif
diff --git a/arch/arm/mach-msm/include/mach/mmc.h b/arch/arm/mach-msm/include/mach/mmc.h
index 0ecf25426284..d54b6b086cff 100644
--- a/arch/arm/mach-msm/include/mach/mmc.h
+++ b/arch/arm/mach-msm/include/mach/mmc.h
@@ -15,7 +15,7 @@ struct embedded_sdio_data {
 	int num_funcs;
 };
 
-struct mmc_platform_data {
+struct msm_mmc_platform_data {
 	unsigned int ocr_mask;			/* available voltages */
 	u32 (*translate_vdd)(struct device *, unsigned int);
 	unsigned int (*status)(struct device *);
diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c
index cf11d414b425..f07dc7c738f0 100644
--- a/arch/arm/mach-msm/smd.c
+++ b/arch/arm/mach-msm/smd.c
@@ -997,7 +997,7 @@ int smd_core_init(void)
 	return 0;
 }
 
-static int __init msm_smd_probe(struct platform_device *pdev)
+static int __devinit msm_smd_probe(struct platform_device *pdev)
 {
 	pr_info("smd_init()\n");
 
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 3bd8ff71ec22..6824917f5c60 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1060,7 +1060,7 @@ msmsdcc_init_dma(struct msmsdcc_host *host)
 static int
 msmsdcc_probe(struct platform_device *pdev)
 {
-	struct mmc_platform_data *plat = pdev->dev.platform_data;
+	struct msm_mmc_platform_data *plat = pdev->dev.platform_data;
 	struct msmsdcc_host *host;
 	struct mmc_host *mmc;
 	struct resource *cmd_irqres = NULL;
diff --git a/drivers/mmc/host/msm_sdcc.h b/drivers/mmc/host/msm_sdcc.h
index d7dedcf33b5b..ff2b0f74f6f4 100644
--- a/drivers/mmc/host/msm_sdcc.h
+++ b/drivers/mmc/host/msm_sdcc.h
@@ -225,7 +225,7 @@ struct msmsdcc_host {
 
 	u32			pwr;
 	u32			saved_irq0mask;	/* MMCIMASK0 reg value */
-	struct mmc_platform_data *plat;
+	struct msm_mmc_platform_data *plat;
 
 	struct timer_list	timer;
 	unsigned int		oldstat;