aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm/mach-davinci/board-da850-evm.c42
-rw-r--r--arch/arm/mach-davinci/da850.c23
-rw-r--r--arch/arm/mach-davinci/devices-da8xx.c36
-rw-r--r--arch/arm/mach-davinci/include/mach/da8xx.h4
-rw-r--r--arch/arm/mach-davinci/include/mach/mux.h10
5 files changed, 115 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index b1df784ed70..eb998ce6d46 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -33,6 +33,9 @@
#define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
#define DA850_LCD_PWR_PIN GPIO_TO_PIN(8, 10)
+#define DA850_MMCSD_CD_PIN GPIO_TO_PIN(4, 0)
+#define DA850_MMCSD_WP_PIN GPIO_TO_PIN(4, 1)
+
static struct davinci_i2c_platform_data da850_evm_i2c_0_pdata = {
.bus_freq = 100, /* kHz */
.bus_delay = 0, /* usec */
@@ -63,6 +66,23 @@ static struct snd_platform_data da850_evm_snd_data = {
.rxnumevt = 1,
};
+static int da850_evm_mmc_get_ro(int index)
+{
+ return gpio_get_value(DA850_MMCSD_WP_PIN);
+}
+
+static int da850_evm_mmc_get_cd(int index)
+{
+ return !gpio_get_value(DA850_MMCSD_CD_PIN);
+}
+
+static struct davinci_mmc_config da850_mmc_config = {
+ .get_ro = da850_evm_mmc_get_ro,
+ .get_cd = da850_evm_mmc_get_cd,
+ .wires = 4,
+ .version = MMC_CTLR_VERSION_2,
+};
+
static int da850_lcd_hw_init(void)
{
int status;
@@ -134,6 +154,28 @@ static __init void da850_evm_init(void)
pr_warning("da830_evm_init: watchdog registration failed: %d\n",
ret);
+ ret = da8xx_pinmux_setup(da850_mmcsd0_pins);
+ if (ret)
+ pr_warning("da850_evm_init: mmcsd0 mux setup failed: %d\n",
+ ret);
+
+ ret = gpio_request(DA850_MMCSD_CD_PIN, "MMC CD\n");
+ if (ret)
+ pr_warning("da850_evm_init: can not open GPIO %d\n",
+ DA850_MMCSD_CD_PIN);
+ gpio_direction_input(DA850_MMCSD_CD_PIN);
+
+ ret = gpio_request(DA850_MMCSD_WP_PIN, "MMC WP\n");
+ if (ret)
+ pr_warning("da850_evm_init: can not open GPIO %d\n",
+ DA850_MMCSD_WP_PIN);
+ gpio_direction_input(DA850_MMCSD_WP_PIN);
+
+ ret = da8xx_register_mmcsd0(&da850_mmc_config);
+ if (ret)
+ pr_warning("da850_evm_init: mmcsd0 registration failed: %d\n",
+ ret);
+
davinci_serial_init(&da850_evm_uart_config);
/*
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index e6e605bf151..9debd57deb7 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -304,6 +304,12 @@ static struct clk lcdc_clk = {
.psc_ctlr = 1,
};
+static struct clk mmcsd_clk = {
+ .name = "mmcsd",
+ .parent = &pll0_sysclk2,
+ .lpsc = DA8XX_LPSC0_MMC_SD,
+};
+
static struct davinci_clk da850_clks[] = {
CLK(NULL, "ref", &ref_clk),
CLK(NULL, "pll0", &pll0_clk),
@@ -343,6 +349,7 @@ static struct davinci_clk da850_clks[] = {
CLK("davinci_emac.1", NULL, &emac_clk),
CLK("davinci-mcasp.0", NULL, &mcasp_clk),
CLK("da8xx_lcdc.0", NULL, &lcdc_clk),
+ CLK("davinci_mmc.0", NULL, &mmcsd_clk),
CLK(NULL, NULL, NULL),
};
@@ -434,9 +441,18 @@ static const struct mux_config da850_pins[] = {
MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
+ /* MMC/SD0 function */
+ MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
+ MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
+ MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
+ MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
+ MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
+ MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
/* GPIO function */
MUX_CFG(DA850, GPIO2_15, 5, 0, 15, 8, false)
MUX_CFG(DA850, GPIO8_10, 18, 28, 15, 8, false)
+ MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
+ MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
#endif
};
@@ -491,6 +507,13 @@ const short da850_lcdcntl_pins[] __initdata = {
-1
};
+const short da850_mmcsd0_pins[] __initdata = {
+ DA850_MMCSD0_DAT_0, DA850_MMCSD0_DAT_1, DA850_MMCSD0_DAT_2,
+ DA850_MMCSD0_DAT_3, DA850_MMCSD0_CLK, DA850_MMCSD0_CMD,
+ DA850_GPIO4_0, DA850_GPIO4_1,
+ -1
+};
+
/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
[IRQ_DA8XX_COMMTX] = 7,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 094eb8ed8e7..58ad5b66fd6 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -412,3 +412,39 @@ int __init da8xx_register_lcdc(void)
{
return platform_device_register(&da850_lcdc_device);
}
+
+static struct resource da8xx_mmcsd0_resources[] = {
+ { /* registers */
+ .start = DA8XX_MMCSD0_BASE,
+ .end = DA8XX_MMCSD0_BASE + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ { /* interrupt */
+ .start = IRQ_DA8XX_MMCSDINT0,
+ .end = IRQ_DA8XX_MMCSDINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ { /* DMA RX */
+ .start = EDMA_CTLR_CHAN(0, 16),
+ .end = EDMA_CTLR_CHAN(0, 16),
+ .flags = IORESOURCE_DMA,
+ },
+ { /* DMA TX */
+ .start = EDMA_CTLR_CHAN(0, 17),
+ .end = EDMA_CTLR_CHAN(0, 17),
+ .flags = IORESOURCE_DMA,
+ },
+};
+
+static struct platform_device da8xx_mmcsd0_device = {
+ .name = "davinci_mmc",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(da8xx_mmcsd0_resources),
+ .resource = da8xx_mmcsd0_resources,
+};
+
+int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
+{
+ da8xx_mmcsd0_device.dev.platform_data = config;
+ return platform_device_register(&da8xx_mmcsd0_device);
+}
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index 0af3fb6077a..0af141ffc3b 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -16,6 +16,7 @@
#include <mach/i2c.h>
#include <mach/emac.h>
#include <mach/asp.h>
+#include <mach/mmc.h>
/*
* The cp_intc interrupt controller for the da8xx isn't in the same
@@ -38,6 +39,7 @@
#define DA8XX_GPIO_BASE 0x01e26000
#define DA8XX_PSC1_BASE 0x01e27000
#define DA8XX_LCD_CNTRL_BASE 0x01e13000
+#define DA8XX_MMCSD0_BASE 0x01c40000
#define PINMUX0 0x00
#define PINMUX1 0x04
@@ -68,6 +70,7 @@ int da8xx_register_i2c(int instance, struct davinci_i2c_platform_data *pdata);
int da8xx_register_watchdog(void);
int da8xx_register_emac(void);
int da8xx_register_lcdc(void);
+int da8xx_register_mmcsd0(struct davinci_mmc_config *config);
void __init da8xx_init_mcasp(int id, struct snd_platform_data *pdata);
extern struct platform_device da8xx_serial_device;
@@ -106,6 +109,7 @@ extern const short da850_i2c1_pins[];
extern const short da850_cpgmac_pins[];
extern const short da850_mcasp_pins[];
extern const short da850_lcdcntl_pins[];
+extern const short da850_mmcsd0_pins[];
int da8xx_pinmux_setup(const short pins[]);
diff --git a/arch/arm/mach-davinci/include/mach/mux.h b/arch/arm/mach-davinci/include/mach/mux.h
index 30bf329d537..b2335640c22 100644
--- a/arch/arm/mach-davinci/include/mach/mux.h
+++ b/arch/arm/mach-davinci/include/mach/mux.h
@@ -798,9 +798,19 @@ enum davinci_da850_index {
DA850_LCD_VSYNC,
DA850_NLCD_AC_ENB_CS,
+ /* MMC/SD0 function */
+ DA850_MMCSD0_DAT_0,
+ DA850_MMCSD0_DAT_1,
+ DA850_MMCSD0_DAT_2,
+ DA850_MMCSD0_DAT_3,
+ DA850_MMCSD0_CLK,
+ DA850_MMCSD0_CMD,
+
/* GPIO function */
DA850_GPIO2_15,
DA850_GPIO8_10,
+ DA850_GPIO4_0,
+ DA850_GPIO4_1,
};
#ifdef CONFIG_DAVINCI_MUX