[PATCH V2 32/69] ST SPEAr: Adding support for SDHCI (SDIO)
Viresh KUMAR
viresh.kumar at st.com
Fri Oct 1 07:55:52 EDT 2010
Signed-off-by: Viresh Kumar <viresh.kumar at st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim at st.com>
---
arch/arm/mach-spear13xx/include/mach/generic.h | 1 +
arch/arm/mach-spear13xx/spear1300_evb.c | 1 +
arch/arm/mach-spear13xx/spear13xx.c | 34 +++++++++++++-
arch/arm/mach-spear3xx/include/mach/generic.h | 13 ++++--
arch/arm/mach-spear3xx/include/mach/irqs.h | 4 +-
arch/arm/mach-spear3xx/include/mach/spear300.h | 4 +-
arch/arm/mach-spear3xx/include/mach/spear320.h | 6 +-
arch/arm/mach-spear3xx/spear300.c | 62 ++++++++++++++++++++----
arch/arm/mach-spear3xx/spear300_evb.c | 18 +++++++-
arch/arm/mach-spear3xx/spear320.c | 43 +++++++++++++----
arch/arm/mach-spear3xx/spear320_evb.c | 15 +++++-
11 files changed, 167 insertions(+), 34 deletions(-)
diff --git a/arch/arm/mach-spear13xx/include/mach/generic.h b/arch/arm/mach-spear13xx/include/mach/generic.h
index 7419e0b..bfd0667 100644
--- a/arch/arm/mach-spear13xx/include/mach/generic.h
+++ b/arch/arm/mach-spear13xx/include/mach/generic.h
@@ -40,6 +40,7 @@ extern struct platform_device spear13xx_nand_device;
extern struct platform_device spear13xx_ohci0_device;
extern struct platform_device spear13xx_ohci1_device;
extern struct platform_device spear13xx_rtc_device;
+extern struct platform_device spear13xx_sdhci_device;
extern struct platform_device spear13xx_smi_device;
extern struct sys_timer spear13xx_timer;
diff --git a/arch/arm/mach-spear13xx/spear1300_evb.c b/arch/arm/mach-spear13xx/spear1300_evb.c
index ba46f61..269d9b0 100644
--- a/arch/arm/mach-spear13xx/spear1300_evb.c
+++ b/arch/arm/mach-spear13xx/spear1300_evb.c
@@ -43,6 +43,7 @@ static struct platform_device *plat_devs[] __initdata = {
&spear13xx_ohci0_device,
&spear13xx_ohci1_device,
&spear13xx_rtc_device,
+ &spear13xx_sdhci_device,
&spear13xx_smi_device,
};
diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c
index 6455ebb..b058c3b 100644
--- a/arch/arm/mach-spear13xx/spear13xx.c
+++ b/arch/arm/mach-spear13xx/spear13xx.c
@@ -349,6 +349,16 @@ struct platform_device spear13xx_smi_device = {
.resource = smi_resources,
};
+static void sdhci_enable(void)
+{
+ unsigned val = readl(PERIP_CFG);
+
+ /* This function enables SD/MMC interface out of SD/MMC, CF, XD */
+ val &= ~(MCIF_SEL_MASK << MCIF_SEL_SHIFT);
+ val |= SD_MMC_ACTIVE << MCIF_SEL_SHIFT;
+ writel(val, PERIP_CFG);
+}
+
#ifdef CONFIG_PCIEPORTBUS
/* PCIE0 clock always needs to be enabled if any of the three PCIE port
* have to be used. So call this function from the board initilization
@@ -377,10 +387,32 @@ int enable_pcie0_clk(void)
}
#endif
+/* sdhci (sdio) device declaration */
+static struct resource sdhci_resources[] = {
+ {
+ .start = SPEAR13XX_MCIF_SDHCI_BASE,
+ .end = SPEAR13XX_MCIF_SDHCI_BASE + SZ_256 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_SDHCI,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+struct platform_device spear13xx_sdhci_device = {
+ .dev = {
+ .coherent_dma_mask = ~0,
+ },
+ .name = "sdhci",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(sdhci_resources),
+ .resource = sdhci_resources,
+};
+
/* Do spear13xx familiy common initialization part here */
void __init spear13xx_init(void)
{
- /* nothing to do for now */
+ sdhci_enable();
}
/* This will initialize vic */
diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h
index 04ce8700..9bd9424 100644
--- a/arch/arm/mach-spear3xx/include/mach/generic.h
+++ b/arch/arm/mach-spear3xx/include/mach/generic.h
@@ -116,6 +116,7 @@ extern struct platform_device nand0_device;
extern struct platform_device nand1_device;
extern struct platform_device nand2_device;
extern struct platform_device nand3_device;
+extern struct platform_device sdhci_device;
/* pad mux modes */
extern struct pmx_mode nand_mode;
@@ -144,12 +145,15 @@ extern struct pmx_dev pmx_telecom_camera;
extern struct pmx_dev pmx_telecom_dac;
extern struct pmx_dev pmx_telecom_i2s;
extern struct pmx_dev pmx_telecom_boot_pins;
-extern struct pmx_dev pmx_telecom_sdio_4bit;
-extern struct pmx_dev pmx_telecom_sdio_8bit;
+extern struct pmx_dev pmx_telecom_sdhci_4bit;
+extern struct pmx_dev pmx_telecom_sdhci_8bit;
extern struct pmx_dev pmx_gpio1;
/* Add spear300 machine function declarations here */
void __init spear300_init(void);
+#define SDHCI_MEM_ENB 0x1
+#define I2S_MEM_ENB 0x2
+void sdhci_i2s_mem_enable(u8 mask);
/* Add misc structure declarations here */
extern struct clcd_board clcd_plat_data;
@@ -182,6 +186,7 @@ extern struct platform_device i2c1_device;
extern struct platform_device nand_device;
extern struct platform_device plgpio_device;
extern struct platform_device pwm_device;
+extern struct platform_device sdhci_device;
/* pad mux modes */
extern struct pmx_mode auto_net_smii_mode;
@@ -194,14 +199,14 @@ extern struct pmx_dev pmx_clcd;
extern struct pmx_dev pmx_emi;
extern struct pmx_dev pmx_fsmc;
extern struct pmx_dev pmx_spp;
-extern struct pmx_dev pmx_sdio;
+extern struct pmx_dev pmx_sdhci;
extern struct pmx_dev pmx_i2s;
extern struct pmx_dev pmx_uart1;
extern struct pmx_dev pmx_uart1_modem;
extern struct pmx_dev pmx_uart2;
extern struct pmx_dev pmx_touchscreen;
extern struct pmx_dev pmx_can;
-extern struct pmx_dev pmx_sdio_led;
+extern struct pmx_dev pmx_sdhci_led;
extern struct pmx_dev pmx_pwm0;
extern struct pmx_dev pmx_pwm1;
extern struct pmx_dev pmx_pwm2;
diff --git a/arch/arm/mach-spear3xx/include/mach/irqs.h b/arch/arm/mach-spear3xx/include/mach/irqs.h
index 5ad7574..df0c1f3 100644
--- a/arch/arm/mach-spear3xx/include/mach/irqs.h
+++ b/arch/arm/mach-spear3xx/include/mach/irqs.h
@@ -69,7 +69,7 @@
#define IRQ_CLCD IRQ_GEN_RAS_3
/* IRQs sharing IRQ_INTRCOMM_RAS_ARM */
-#define IRQ_SDIO IRQ_INTRCOMM_RAS_ARM
+#define IRQ_SDHCI IRQ_INTRCOMM_RAS_ARM
/* GPIO pins virtual irqs */
#define SPEAR_GPIO_INT_BASE (VIRQ_START + 9)
@@ -115,7 +115,7 @@
#define VIRQ_SPP (VIRQ_START + 2)
/* IRQs sharing IRQ_GEN_RAS_2 */
-#define IRQ_SDIO IRQ_GEN_RAS_2
+#define IRQ_SDHCI IRQ_GEN_RAS_2
/* IRQs sharing IRQ_GEN_RAS_3 */
#define VIRQ_PLGPIO (VIRQ_START + 3)
diff --git a/arch/arm/mach-spear3xx/include/mach/spear300.h b/arch/arm/mach-spear3xx/include/mach/spear300.h
index ccaa765..1059d5a 100644
--- a/arch/arm/mach-spear3xx/include/mach/spear300.h
+++ b/arch/arm/mach-spear3xx/include/mach/spear300.h
@@ -39,8 +39,8 @@
#define SPEAR300_CLCD_BASE 0x60000000
#define SPEAR300_CLCD_SIZE 0x10000000
-#define SPEAR300_SDIO_BASE 0x70000000
-#define SPEAR300_SDIO_SIZE 0x10000000
+#define SPEAR300_SDHCI_BASE 0x70000000
+#define SPEAR300_SDHCI_SIZE 0x10000000
#define SPEAR300_NAND_0_BASE 0x80000000
#define SPEAR300_NAND_0_SIZE 0x04000000
diff --git a/arch/arm/mach-spear3xx/include/mach/spear320.h b/arch/arm/mach-spear3xx/include/mach/spear320.h
index aa6727c..89f5bfb 100644
--- a/arch/arm/mach-spear3xx/include/mach/spear320.h
+++ b/arch/arm/mach-spear3xx/include/mach/spear320.h
@@ -28,8 +28,8 @@
#define SPEAR320_I2S_BASE 0x60000000
#define SPEAR320_I2S_SIZE 0x10000000
-#define SPEAR320_SDIO_BASE 0x70000000
-#define SPEAR320_SDIO_SIZE 0x10000000
+#define SPEAR320_SDHCI_BASE 0x70000000
+#define SPEAR320_SDHCI_SIZE 0x10000000
#define SPEAR320_CLCD_BASE 0x90000000
#define SPEAR320_CLCD_SIZE 0x10000000
@@ -77,7 +77,7 @@
#define EMI_IRQ_MASK (1 << 7)
#define CLCD_IRQ_MASK (1 << 8)
#define SPP_IRQ_MASK (1 << 9)
-#define SDIO_IRQ_MASK (1 << 10)
+#define SDHCI_IRQ_MASK (1 << 10)
#define CAN_U_IRQ_MASK (1 << 11)
#define CAN_L_IRQ_MASK (1 << 12)
#define UART1_IRQ_MASK (1 << 13)
diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c
index c213614..fd83f53 100644
--- a/arch/arm/mach-spear3xx/spear300.c
+++ b/arch/arm/mach-spear3xx/spear300.c
@@ -311,7 +311,7 @@ struct pmx_dev pmx_telecom_boot_pins = {
.enb_on_reset = 1,
};
-struct pmx_dev_mode pmx_telecom_sdio_4bit_modes[] = {
+struct pmx_dev_mode pmx_telecom_sdhci_4bit_modes[] = {
{
.ids = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE |
HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE |
@@ -324,14 +324,14 @@ struct pmx_dev_mode pmx_telecom_sdio_4bit_modes[] = {
},
};
-struct pmx_dev pmx_telecom_sdio_4bit = {
- .name = "telecom_sdio_4bit",
- .modes = pmx_telecom_sdio_4bit_modes,
- .mode_count = ARRAY_SIZE(pmx_telecom_sdio_4bit_modes),
+struct pmx_dev pmx_telecom_sdhci_4bit = {
+ .name = "telecom_sdhci_4bit",
+ .modes = pmx_telecom_sdhci_4bit_modes,
+ .mode_count = ARRAY_SIZE(pmx_telecom_sdhci_4bit_modes),
.enb_on_reset = 1,
};
-struct pmx_dev_mode pmx_telecom_sdio_8bit_modes[] = {
+struct pmx_dev_mode pmx_telecom_sdhci_8bit_modes[] = {
{
.ids = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE |
HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE |
@@ -343,10 +343,10 @@ struct pmx_dev_mode pmx_telecom_sdio_8bit_modes[] = {
},
};
-struct pmx_dev pmx_telecom_sdio_8bit = {
- .name = "telecom_sdio_8bit",
- .modes = pmx_telecom_sdio_8bit_modes,
- .mode_count = ARRAY_SIZE(pmx_telecom_sdio_8bit_modes),
+struct pmx_dev pmx_telecom_sdhci_8bit = {
+ .name = "telecom_sdhci_8bit",
+ .modes = pmx_telecom_sdhci_8bit_modes,
+ .mode_count = ARRAY_SIZE(pmx_telecom_sdhci_8bit_modes),
.enb_on_reset = 1,
};
@@ -524,6 +524,28 @@ struct platform_device nand3_device = {
.dev.platform_data = &nand3_platform_data,
};
+/* sdhci (sdio) device declaration */
+static struct resource sdhci_resources[] = {
+ {
+ .start = SPEAR300_SDHCI_BASE,
+ .end = SPEAR300_SDHCI_BASE + SZ_256 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_SDHCI,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+struct platform_device sdhci_device = {
+ .dev = {
+ .coherent_dma_mask = ~0,
+ },
+ .name = "sdhci",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(sdhci_resources),
+ .resource = sdhci_resources,
+};
+
/* spear3xx shared irq */
struct shirq_dev_config shirq_ras1_config[] = {
{
@@ -577,6 +599,26 @@ struct spear_shirq shirq_ras1 = {
},
};
+/* Function handling sdhci and i2s memory sharing */
+#define SDHCI_MEM_SELECT 0x20000000
+void sdhci_i2s_mem_enable(u8 mask)
+{
+ u32 val;
+ void __iomem *base = ioremap(SPEAR300_SOC_CONFIG_BASE,
+ SPEAR300_SOC_CONFIG_SIZE);
+ if (!base) {
+ pr_debug("sdhci_i2s_enb: ioremap fail\n");
+ return;
+ }
+
+ val = readl(base + MODE_CONFIG_REG);
+ if (mask == SDHCI_MEM_ENB)
+ val |= SDHCI_MEM_SELECT;
+ else
+ val &= ~SDHCI_MEM_SELECT;
+ writel(val, base + MODE_CONFIG_REG);
+}
+
/* spear300 routines */
void __init spear300_init(void)
{
diff --git a/arch/arm/mach-spear3xx/spear300_evb.c b/arch/arm/mach-spear3xx/spear300_evb.c
index c702cc3..2bcb55f 100644
--- a/arch/arm/mach-spear3xx/spear300_evb.c
+++ b/arch/arm/mach-spear3xx/spear300_evb.c
@@ -17,6 +17,7 @@
#include <asm/mach-types.h>
#include <linux/spi/flash.h>
#include <linux/spi/spi.h>
+#include <linux/mmc/sdhci-spear.h>
#include <mach/generic.h>
#include <mach/gpio.h>
#include <mach/spear.h>
@@ -37,7 +38,7 @@ static struct pmx_dev *pmx_devs[] = {
/* spear300 specific devices */
&pmx_fsmc_2_chips,
&pmx_clcd,
- &pmx_telecom_sdio_4bit,
+ &pmx_telecom_sdhci_4bit,
&pmx_gpio1,
};
@@ -65,6 +66,15 @@ static struct platform_device *plat_devs[] __initdata = {
/* spear300 specific devices */
&kbd_device,
+ &sdhci_device,
+};
+
+/* sdhci board specific information */
+static struct sdhci_plat_data sdhci_plat_data = {
+ .card_power_gpio = RAS_GPIO_2,
+ .power_active_high = 0,
+ .power_always_enb = 0,
+ .card_int_gpio = RAS_GPIO_0,
};
/* keyboard specific platform data */
@@ -115,6 +125,12 @@ static void __init spear300_evb_init(void)
fsmc_nand_set_plat_data(&nand0_device, NULL, 0, NAND_SKIP_BBTSCAN,
FSMC_NAND_BW8);
+ /* set sdhci device platform data */
+ sdhci_set_plat_data(&sdhci_device, &sdhci_plat_data);
+
+ /* Enable sdhci memory */
+ sdhci_i2s_mem_enable(SDHCI_MEM_ENB);
+
/* call spear300 machine init function */
spear300_init();
diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c
index f87cc97..e14e201 100644
--- a/arch/arm/mach-spear3xx/spear320.c
+++ b/arch/arm/mach-spear3xx/spear320.c
@@ -13,6 +13,8 @@
#include <linux/amba/pl022.h>
#include <linux/ptrace.h>
+#include <linux/types.h>
+#include <linux/mmc/sdhci-spear.h>
#include <mtd/fsmc.h>
#include <asm/irq.h>
#include <mach/generic.h>
@@ -113,7 +115,7 @@ struct pmx_dev pmx_spp = {
.enb_on_reset = 1,
};
-struct pmx_dev_mode pmx_sdio_modes[] = {
+struct pmx_dev_mode pmx_sdhci_modes[] = {
{
.ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE |
SMALL_PRINTERS_MODE,
@@ -121,10 +123,10 @@ struct pmx_dev_mode pmx_sdio_modes[] = {
},
};
-struct pmx_dev pmx_sdio = {
- .name = "sdio",
- .modes = pmx_sdio_modes,
- .mode_count = ARRAY_SIZE(pmx_sdio_modes),
+struct pmx_dev pmx_sdhci = {
+ .name = "sdhci",
+ .modes = pmx_sdhci_modes,
+ .mode_count = ARRAY_SIZE(pmx_sdhci_modes),
.enb_on_reset = 1,
};
@@ -218,17 +220,17 @@ struct pmx_dev pmx_can = {
.enb_on_reset = 1,
};
-struct pmx_dev_mode pmx_sdio_led_modes[] = {
+struct pmx_dev_mode pmx_sdhci_led_modes[] = {
{
.ids = AUTO_NET_SMII_MODE | AUTO_NET_MII_MODE,
.mask = PMX_SSP_CS_MASK,
},
};
-struct pmx_dev pmx_sdio_led = {
- .name = "sdio_led",
- .modes = pmx_sdio_led_modes,
- .mode_count = ARRAY_SIZE(pmx_sdio_led_modes),
+struct pmx_dev pmx_sdhci_led = {
+ .name = "sdhci_led",
+ .modes = pmx_sdhci_led_modes,
+ .mode_count = ARRAY_SIZE(pmx_sdhci_led_modes),
.enb_on_reset = 1,
};
@@ -536,6 +538,27 @@ struct platform_device pwm_device = {
.resource = pwm_resources,
};
+/* sdhci (sdio) device registeration */
+static struct resource sdhci_resources[] = {
+ {
+ .start = SPEAR320_SDHCI_BASE,
+ .end = SPEAR320_SDHCI_BASE + SZ_256 - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .start = IRQ_SDHCI,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+struct platform_device sdhci_device = {
+ .dev = {
+ .coherent_dma_mask = ~0,
+ },
+ .name = "sdhci",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(sdhci_resources),
+ .resource = sdhci_resources,
+};
/* spear3xx shared irq */
struct shirq_dev_config shirq_ras1_config[] = {
diff --git a/arch/arm/mach-spear3xx/spear320_evb.c b/arch/arm/mach-spear3xx/spear320_evb.c
index dcca84e..2142ad9 100644
--- a/arch/arm/mach-spear3xx/spear320_evb.c
+++ b/arch/arm/mach-spear3xx/spear320_evb.c
@@ -16,6 +16,7 @@
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <linux/spi/flash.h>
+#include <linux/mmc/sdhci-spear.h>
#include <linux/spi/spi.h>
#include <mach/generic.h>
#include <mach/gpio.h>
@@ -34,7 +35,7 @@ static struct pmx_dev *pmx_devs[] = {
/* spear320 specific devices */
&pmx_fsmc,
- &pmx_sdio,
+ &pmx_sdhci,
&pmx_i2s,
&pmx_uart1,
&pmx_uart2,
@@ -69,6 +70,15 @@ static struct platform_device *plat_devs[] __initdata = {
&i2c1_device,
&plgpio_device,
&pwm_device,
+ &sdhci_device,
+};
+
+/* sdhci board specific information */
+static struct sdhci_plat_data sdhci_plat_data = {
+ .card_power_gpio = PLGPIO_61,
+ .power_active_high = 0,
+ .power_always_enb = 1,
+ .card_int_gpio = -1,
};
static struct spi_board_info __initdata spi_board_info[] = {
@@ -83,6 +93,9 @@ static void __init spear320_evb_init(void)
{
unsigned int i;
+ /* set sdhci device platform data */
+ sdhci_set_plat_data(&sdhci_device, &sdhci_plat_data);
+
/* padmux initialization, must be done before spear320_init */
pmx_driver.mode = &auto_net_mii_mode;
pmx_driver.devs = pmx_devs;
--
1.7.2.2
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