Tegra: MMC: Add DT support to MMC driver for all T20 boards
tegra_mmc_init() now parses the DT info for bus width, WP/CD GPIOs, etc.
Tested on Seaboard, fully functional.
Tamonten boards (medcom-wide, plutux, and tec) use a different/new
dtsi file w/common settings.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/include/asm/arch-tegra/mmc.h b/arch/arm/include/asm/arch-tegra/mmc.h
index 5c95047..71ad407 100644
--- a/arch/arm/include/asm/arch-tegra/mmc.h
+++ b/arch/arm/include/asm/arch-tegra/mmc.h
@@ -22,6 +22,6 @@
#ifndef _TEGRA_MMC_H_
#define _TEGRA_MMC_H_
-int tegra_mmc_init(int dev_index, int bus_width, int pwr_gpio, int cd_gpio);
+void tegra_mmc_init(void);
#endif /* _TEGRA_MMC_H_ */
diff --git a/arch/arm/include/asm/arch-tegra/tegra_mmc.h b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
index dd746ca..bd18f5f 100644
--- a/arch/arm/include/asm/arch-tegra/tegra_mmc.h
+++ b/arch/arm/include/asm/arch-tegra/tegra_mmc.h
@@ -27,6 +27,8 @@
#define TEGRA_SDMMC3_BASE 0xC8000400
#define TEGRA_SDMMC4_BASE 0xC8000600
+#define MAX_HOSTS 4 /* Max number of 'hosts'/controllers */
+
#ifndef __ASSEMBLY__
struct tegra_mmc {
unsigned int sysad; /* _SYSTEM_ADDRESS_0 */
@@ -119,12 +121,15 @@
struct mmc_host {
struct tegra_mmc *reg;
+ int id; /* device id/number, 0-3 */
+ int enabled; /* 1 to enable, 0 to disable */
+ int width; /* Bus Width, 1, 4 or 8 */
+ enum periph_id mmc_id; /* Peripheral ID: PERIPH_ID_... */
+ struct fdt_gpio_state cd_gpio; /* Change Detect GPIO */
+ struct fdt_gpio_state pwr_gpio; /* Power GPIO */
+ struct fdt_gpio_state wp_gpio; /* Write Protect GPIO */
unsigned int version; /* SDHCI spec. version */
unsigned int clock; /* Current clock (MHz) */
- unsigned int base; /* Base address, SDMMC1/2/3/4 */
- enum periph_id mmc_id; /* Peripheral ID: PERIPH_ID_... */
- int pwr_gpio; /* Power GPIO */
- int cd_gpio; /* Change Detect GPIO */
};
#endif /* __ASSEMBLY__ */