Patch set updated for coreboot: dfab483 exynos5420: Make USB A-A booting work with early data cache
Isaac Christensen (isaac.christensen@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6530
-gerrit
commit dfab483320e8c4fbd08f9d939527fdfc471ed5da Author: Julius Werner jwerner@chromium.org Date: Wed Aug 21 17:33:31 2013 -0700
exynos5420: Make USB A-A booting work with early data cache
Apparently the IROM doesn't like data caches... the recently added dcache-in-bootblock makes A-A booting fail, and flushes/invalidations alone don't seem to fix it. It's pretty fast anyway, so we just disable the cache again for the duration of the IROM call.
Also removes a superfluous invalidation line from the bootblock code... dcache_mmu_enable/disable already take care of that.
Old-Change-Id: I35580d15664c7b4197d4ed14028720147adbf918 Signed-off-by: Julius Werner jwerner@chromium.org Reviewed-on: https://gerrit.chromium.org/gerrit/66602 Reviewed-by: Gabe Black gabeblack@chromium.org Reviewed-by: David Hendricks dhendrix@chromium.org (cherry picked from commit e9c28a6a7a88c8286e62764ee5ad2694da2e822f)
exynos5: Implement booting from SDMMC media
This patch augments the alternative CBFS media source implementation for Exynos5250 and Exynos5420 to allow booting from SDMMC devices (such as an SD or uSD card reader, if available). It also moves MMC initialization for the Snow, Pit and Kirby boards from romstage to ramstage (mainboard_init) to prevent it from interfering with the IROM during SDMMC boot.
Old-Change-Id: Ic4adef80c28262d084a53c28ec59aa7ac3af50c8 Signed-off-by: Julius Werner jwerner@chromium.org Reviewed-on: https://gerrit.chromium.org/gerrit/66154 (cherry picked from commit 08de13b72432c076e3327c048df93d89d52b0ecc)
snow and pit: turn on FET4 (for SD card) at bootup
Explictly enable FET4 on Snow and Pit.
Historically we haven't needed to do this because: * On snow there's a bypass around FET4 which effectively eliminates it. Even if we don't turn on FET4 the SD card is still powered. Turning on FET4 doesn't hurt though and is technically correct. * On pit the EC turns on FET4 on cold bootup.
On pit we run into a problem if the kernel turns off FET4 like in https://gerrit.chromium.org/gerrit/#/c/65332/ and then we get a software reset or warm reset. In this case the EC won't know to turn it back on.
This was ported from: https://gerrit.chromium.org/gerrit/#/c/65673
Signed-off-by: David Hendricks dhendrix@chromium.org
Old-Change-Id: I57337f12b38889e6afee8577cf8807ec4c41e91c Reviewed-on: https://gerrit.chromium.org/gerrit/66786 Commit-Queue: David Hendricks dhendrix@chromium.org Tested-by: David Hendricks dhendrix@chromium.org Reviewed-by: Ronald G. Minnich rminnich@chromium.org (cherry picked from commit e910117047d898b6b1d0dc965ef2ec0237d17646)
Squashed three commits for alternate cbfs SD support.
Change-Id: Idbd1fd4776cbf8cb20d03e6b691104cd8540a1ec Signed-off-by: Isaac Christensen isaac.christensen@se-eng.com --- src/cpu/samsung/exynos5250/alternate_cbfs.c | 72 ++++++++++++++++++++++++-- src/cpu/samsung/exynos5250/alternate_cbfs.h | 6 +++ src/cpu/samsung/exynos5250/power.h | 3 +- src/cpu/samsung/exynos5420/alternate_cbfs.c | 79 +++++++++++++++++++++++++++-- src/cpu/samsung/exynos5420/alternate_cbfs.h | 6 +++ src/cpu/samsung/exynos5420/bootblock.c | 1 - src/cpu/samsung/exynos5420/power.h | 3 +- src/mainboard/google/pit/mainboard.c | 22 ++++++++ src/mainboard/google/pit/romstage.c | 15 ------ src/mainboard/google/snow/mainboard.c | 30 +++++++++++ src/mainboard/google/snow/romstage.c | 19 ------- 11 files changed, 209 insertions(+), 47 deletions(-)
diff --git a/src/cpu/samsung/exynos5250/alternate_cbfs.c b/src/cpu/samsung/exynos5250/alternate_cbfs.c index 49c9d4c..59843fb 100644 --- a/src/cpu/samsung/exynos5250/alternate_cbfs.c +++ b/src/cpu/samsung/exynos5250/alternate_cbfs.c @@ -24,6 +24,8 @@ #include <string.h> #include <console/console.h> #include "alternate_cbfs.h" +#include "cpu.h" +#include "power.h" #include "spi.h"
/* This allows USB A-A firmware upload from a compatible host in four parts: @@ -53,7 +55,7 @@ static int usb_cbfs_open(struct cbfs_media *media) return 0;
if (!irom_load_usb()) { - printk(BIOS_ERR, "Unable to load CBFS image via USB!\n"); + printk(BIOS_EMERG, "Unable to load CBFS image via USB!\n"); return -1; }
@@ -70,6 +72,45 @@ static int usb_cbfs_open(struct cbfs_media *media) return 0; }
+/* + * SDMMC works very similar to USB A-A: we copy the CBFS image into memory + * and read it from there. While SDMMC would also allow direct block by block + * on-demand reading, we might run into problems if we call back into the IROM + * in very late boot stages (e.g. after initializing/changing MMC clocks)... so + * this seems like a safer approach. It also makes it easy to pass our image + * down to payloads. + */ +static int sdmmc_cbfs_open(struct cbfs_media *media) +{ +#ifdef __PRE_RAM__ + /* + * In the bootblock, we just copy the small part that fits in the buffer + * and hope that it's enough (since the romstage is currently always the + * first component in the image, this should work out). In the romstage, + * we copy until our buffer is full (currently 12M) to avoid the pain of + * figuring out the true image size from in here. Since this is mainly a + * developer/debug boot mode, those shortcomings should be bearable. + */ + const u32 count = alternate_cbfs_size / 512; + static int first_run = 1; + int (*irom_load_sdmmc)(u32 start, u32 count, void *dst) = + *irom_sdmmc_read_blocks_ptr; + + if (!first_run) + return 0; + + if (!irom_load_sdmmc(1, count, alternate_cbfs_buffer)) { + printk(BIOS_EMERG, "Unable to load CBFS image from SDMMC!\n"); + return -1; + } + + printk(BIOS_DEBUG, "SDMMC read successful, CBFS image should now be" + " at %p\n", alternate_cbfs_buffer); + first_run = 0; +#endif + return 0; +} + static int alternate_cbfs_close(struct cbfs_media *media) { return 0; }
static size_t alternate_cbfs_read(struct cbfs_media *media, void *dest, @@ -90,6 +131,19 @@ static void *alternate_cbfs_map(struct cbfs_media *media, size_t offset, static void *alternate_cbfs_unmap(struct cbfs_media *media, const void *buffer) { return 0; }
+static int initialize_exynos_sdmmc_cbfs_media(struct cbfs_media *media) +{ + printk(BIOS_DEBUG, "Using Exynos alternate boot mode SDMMC\n"); + + media->open = sdmmc_cbfs_open; + media->close = alternate_cbfs_close; + media->read = alternate_cbfs_read; + media->map = alternate_cbfs_map; + media->unmap = alternate_cbfs_unmap; + + return 0; +} + static int initialize_exynos_usb_cbfs_media(struct cbfs_media *media) { printk(BIOS_DEBUG, "Using Exynos alternate boot mode USB A-A\n"); @@ -108,8 +162,16 @@ int init_default_cbfs_media(struct cbfs_media *media) if (*iram_secondary_base == SECONDARY_BASE_BOOT_USB) return initialize_exynos_usb_cbfs_media(media);
- /* TODO: implement SDMMC (and possibly other) boot mode */ - - return initialize_exynos_spi_cbfs_media(media, - (void*)CONFIG_CBFS_CACHE_ADDRESS, CONFIG_CBFS_CACHE_SIZE); + switch (samsung_get_base_power()->om_stat & OM_STAT_MASK) { + case OM_STAT_SDMMC: + return initialize_exynos_sdmmc_cbfs_media(media); + case OM_STAT_SPI: + return initialize_exynos_spi_cbfs_media(media, + (void*)CONFIG_CBFS_CACHE_ADDRESS, + CONFIG_CBFS_CACHE_SIZE); + default: + printk(BIOS_EMERG, "Exynos OM_STAT value 0x%x not supported!\n", + samsung_get_base_power()->om_stat); + return 0; + } } diff --git a/src/cpu/samsung/exynos5250/alternate_cbfs.h b/src/cpu/samsung/exynos5250/alternate_cbfs.h index a26fe61..8a87279 100644 --- a/src/cpu/samsung/exynos5250/alternate_cbfs.h +++ b/src/cpu/samsung/exynos5250/alternate_cbfs.h @@ -30,6 +30,12 @@ void * * const irom_load_image_from_usb_ptr = (void * *)0x02020070; #define SECONDARY_BASE_BOOT_USB 0xfeed0002 u32 * const iram_secondary_base = (u32 *)0x02020018;
+/* Values pulled from U-Boot, I think the manual is wrong here (for SPI) */ +#define OM_STAT_SDMMC 0x4 +#define OM_STAT_EMMC 0x8 +#define OM_STAT_SPI 0x14 +#define OM_STAT_MASK 0x7f + #if defined(__BOOT_BLOCK__) /* A small space in IRAM to hold the romstage-only image */ void * const alternate_cbfs_buffer = (void *)CONFIG_CBFS_CACHE_ADDRESS; diff --git a/src/cpu/samsung/exynos5250/power.h b/src/cpu/samsung/exynos5250/power.h index f349e53..5483d92 100644 --- a/src/cpu/samsung/exynos5250/power.h +++ b/src/cpu/samsung/exynos5250/power.h @@ -42,7 +42,8 @@ void power_enable_hw_thermal_trip(void); /* Power Management Unit register map */ struct exynos5_power { /* Add registers as and when required */ - uint8_t reserved1[0x0400]; + uint32_t om_stat; /* 0x0000 */ + uint8_t reserved1[0x03fc]; uint32_t sw_reset; /* 0x0400 */ uint8_t reserved2[0x0304]; uint32_t usb_host_phy_ctrl; /* 0x0708 */ diff --git a/src/cpu/samsung/exynos5420/alternate_cbfs.c b/src/cpu/samsung/exynos5420/alternate_cbfs.c index 49c9d4c..4161303 100644 --- a/src/cpu/samsung/exynos5420/alternate_cbfs.c +++ b/src/cpu/samsung/exynos5420/alternate_cbfs.c @@ -22,8 +22,11 @@ #include <cbfs.h> /* This driver serves as a CBFS media source. */ #include <stdlib.h> #include <string.h> +#include <arch/cache.h> #include <console/console.h> #include "alternate_cbfs.h" +#include "cpu.h" +#include "power.h" #include "spi.h"
/* This allows USB A-A firmware upload from a compatible host in four parts: @@ -52,10 +55,13 @@ static int usb_cbfs_open(struct cbfs_media *media) if (!first_run) return 0;
+ dcache_mmu_disable(); if (!irom_load_usb()) { - printk(BIOS_ERR, "Unable to load CBFS image via USB!\n"); + dcache_mmu_enable(); + printk(BIOS_EMERG, "Unable to load CBFS image via USB!\n"); return -1; } + dcache_mmu_enable();
/* * We need to trust the host/irom to copy the image to our @@ -70,6 +76,48 @@ static int usb_cbfs_open(struct cbfs_media *media) return 0; }
+/* + * SDMMC works very similar to USB A-A: we copy the CBFS image into memory + * and read it from there. While SDMMC would also allow direct block by block + * on-demand reading, we might run into problems if we call back into the IROM + * in very late boot stages (e.g. after initializing/changing MMC clocks)... so + * this seems like a safer approach. It also makes it easy to pass our image + * down to payloads. + */ +static int sdmmc_cbfs_open(struct cbfs_media *media) +{ +#ifdef __PRE_RAM__ + /* + * In the bootblock, we just copy the small part that fits in the buffer + * and hope that it's enough (since the romstage is currently always the + * first component in the image, this should work out). In the romstage, + * we copy until our buffer is full (currently 12M) to avoid the pain of + * figuring out the true image size from in here. Since this is mainly a + * developer/debug boot mode, those shortcomings should be bearable. + */ + const u32 count = alternate_cbfs_size / 512; + static int first_run = 1; + int (*irom_load_sdmmc)(u32 start, u32 count, void *dst) = + *irom_sdmmc_read_blocks_ptr; + + if (!first_run) + return 0; + + dcache_mmu_disable(); + if (!irom_load_sdmmc(1, count, alternate_cbfs_buffer)) { + dcache_mmu_enable(); + printk(BIOS_EMERG, "Unable to load CBFS image from SDMMC!\n"); + return -1; + } + dcache_mmu_enable(); + + printk(BIOS_DEBUG, "SDMMC read successful, CBFS image should now be" + " at %p\n", alternate_cbfs_buffer); + first_run = 0; +#endif + return 0; +} + static int alternate_cbfs_close(struct cbfs_media *media) { return 0; }
static size_t alternate_cbfs_read(struct cbfs_media *media, void *dest, @@ -90,6 +138,19 @@ static void *alternate_cbfs_map(struct cbfs_media *media, size_t offset, static void *alternate_cbfs_unmap(struct cbfs_media *media, const void *buffer) { return 0; }
+static int initialize_exynos_sdmmc_cbfs_media(struct cbfs_media *media) +{ + printk(BIOS_DEBUG, "Using Exynos alternate boot mode SDMMC\n"); + + media->open = sdmmc_cbfs_open; + media->close = alternate_cbfs_close; + media->read = alternate_cbfs_read; + media->map = alternate_cbfs_map; + media->unmap = alternate_cbfs_unmap; + + return 0; +} + static int initialize_exynos_usb_cbfs_media(struct cbfs_media *media) { printk(BIOS_DEBUG, "Using Exynos alternate boot mode USB A-A\n"); @@ -108,8 +169,16 @@ int init_default_cbfs_media(struct cbfs_media *media) if (*iram_secondary_base == SECONDARY_BASE_BOOT_USB) return initialize_exynos_usb_cbfs_media(media);
- /* TODO: implement SDMMC (and possibly other) boot mode */ - - return initialize_exynos_spi_cbfs_media(media, - (void*)CONFIG_CBFS_CACHE_ADDRESS, CONFIG_CBFS_CACHE_SIZE); + switch (samsung_get_base_power()->om_stat & OM_STAT_MASK) { + case OM_STAT_SDMMC: + return initialize_exynos_sdmmc_cbfs_media(media); + case OM_STAT_SPI: + return initialize_exynos_spi_cbfs_media(media, + (void*)CONFIG_CBFS_CACHE_ADDRESS, + CONFIG_CBFS_CACHE_SIZE); + default: + printk(BIOS_EMERG, "Exynos OM_STAT value 0x%x not supported!\n", + samsung_get_base_power()->om_stat); + return 0; + } } diff --git a/src/cpu/samsung/exynos5420/alternate_cbfs.h b/src/cpu/samsung/exynos5420/alternate_cbfs.h index 4e9dff9..3bb9c76 100644 --- a/src/cpu/samsung/exynos5420/alternate_cbfs.h +++ b/src/cpu/samsung/exynos5420/alternate_cbfs.h @@ -30,6 +30,12 @@ void * * const irom_load_image_from_usb_ptr = (void * *)0x02020070; #define SECONDARY_BASE_BOOT_USB 0xfeed0002 u32 * const iram_secondary_base = (u32 *)0x02020018;
+/* Values pulled from U-Boot, I think the manual is wrong here (for SPI) */ +#define OM_STAT_SDMMC 0x4 +#define OM_STAT_EMMC 0x8 +#define OM_STAT_SPI 0x14 +#define OM_STAT_MASK 0x7f + #if defined(__BOOT_BLOCK__) /* A small space in IRAM to hold the romstage-only image */ void * const alternate_cbfs_buffer = (void *)CONFIG_CBFS_CACHE_ADDRESS; diff --git a/src/cpu/samsung/exynos5420/bootblock.c b/src/cpu/samsung/exynos5420/bootblock.c index 3df51a7..1ad75ef 100644 --- a/src/cpu/samsung/exynos5420/bootblock.c +++ b/src/cpu/samsung/exynos5420/bootblock.c @@ -63,7 +63,6 @@ void bootblock_cpu_init(void) mmu_config_range(0, SRAM_START, DCACHE_OFF); mmu_config_range(SRAM_START, SRAM_SIZE, DCACHE_WRITEBACK); mmu_config_range(SRAM_END, 4096 - SRAM_END, DCACHE_OFF); - dcache_invalidate_all(); dcache_mmu_enable();
/* For most ARM systems, we have to initialize firmware media source diff --git a/src/cpu/samsung/exynos5420/power.h b/src/cpu/samsung/exynos5420/power.h index 665e94c..4efc84e 100644 --- a/src/cpu/samsung/exynos5420/power.h +++ b/src/cpu/samsung/exynos5420/power.h @@ -42,7 +42,8 @@ void power_enable_hw_thermal_trip(void); /* Power Management Unit register map */ struct exynos5_power { /* Add registers as and when required */ - uint8_t reserved1[0x0400]; + uint32_t om_stat; /* 0x0000 */ + uint8_t reserved1[0x03fc]; uint32_t sw_reset; /* 0x0400 */ uint8_t reserved2[0x0304]; uint32_t usb_host_phy_ctrl; /* 0x0708 */ diff --git a/src/mainboard/google/pit/mainboard.c b/src/mainboard/google/pit/mainboard.c index 3ffb824..9aa8d5c 100644 --- a/src/mainboard/google/pit/mainboard.c +++ b/src/mainboard/google/pit/mainboard.c @@ -330,6 +330,19 @@ static void disable_usb30_pll(void) gpio_direction_output(usb3_pll_l, 0); }
+static void setup_storage(void) +{ + /* MMC0: Fixed, 8 bit mode, connected with GPIO. */ + if (clock_set_dwmci(PERIPH_ID_SDMMC0)) + printk(BIOS_CRIT, "%s: Failed to set MMC0 clock.\n", __func__); + exynos_pinmux_sdmmc0(); + + /* MMC2: Removable, 4 bit mode, no GPIO. */ + /* (Must be after romstage to avoid breaking SDMMC boot.) */ + clock_set_dwmci(PERIPH_ID_SDMMC2); + exynos_pinmux_sdmmc2(); +} + static void gpio_init(void) { /* Set up the I2C busses. */ @@ -370,6 +383,12 @@ static void backlight_vdd(void) tps65090_thru_ec_fet_set(1); }
+static void sdmmc_vdd(void) +{ + /* Enable FET4, P3.3V_SDCARD */ + tps65090_thru_ec_fet_set(4); +} + /* this happens after cpu_init where exynos resources are set */ static void mainboard_init(device_t dev) { @@ -380,6 +399,7 @@ static void mainboard_init(device_t dev) void *fb_addr = (void *)(get_fb_base_kb() * KiB);
gpio_init(); + setup_storage(); tmu_init(&exynos5420_tmu_info);
/* Clock Gating all the unused IP's to save power */ @@ -388,6 +408,8 @@ static void mainboard_init(device_t dev) /* Disable USB3.0 PLL to save 250mW of power */ disable_usb30_pll();
+ sdmmc_vdd(); + set_vbe_mode_info_valid(&edid, (uintptr_t)fb_addr);
/* diff --git a/src/mainboard/google/pit/romstage.c b/src/mainboard/google/pit/romstage.c index 319ebf9..7967a55 100644 --- a/src/mainboard/google/pit/romstage.c +++ b/src/mainboard/google/pit/romstage.c @@ -40,8 +40,6 @@ #include <drivers/maxim/max77802/max77802.h> #include <device/i2c.h>
-#define MMC0_GPIO_PIN (58) - #define PMIC_I2C_BUS 4
struct pmic_write @@ -109,18 +107,6 @@ static int setup_power(int is_resume) return error; }
-static void setup_storage(void) -{ - /* MMC0: Fixed, 8 bit mode, connected with GPIO. */ - if (clock_set_dwmci(PERIPH_ID_SDMMC0)) - printk(BIOS_CRIT, "%s: Failed to set MMC0 clock.\n", __func__); - exynos_pinmux_sdmmc0(); - - /* MMC2: Removable, 4 bit mode, no GPIO. */ - clock_set_dwmci(PERIPH_ID_SDMMC2); - exynos_pinmux_sdmmc2(); -} - static void setup_ec(void) { /* SPI2 (EC) is slower and needs to work in half-duplex mode with @@ -270,7 +256,6 @@ void main(void) wakeup(); }
- setup_storage(); setup_gpio(); setup_ec();
diff --git a/src/mainboard/google/snow/mainboard.c b/src/mainboard/google/snow/mainboard.c index 23b7072..9fc2fe6 100644 --- a/src/mainboard/google/snow/mainboard.c +++ b/src/mainboard/google/snow/mainboard.c @@ -38,6 +38,8 @@
#include "exynos5250.h"
+#define MMC0_GPIO_PIN (58) + /* convenient shorthand (in MB) */ #define DRAM_START (CONFIG_SYS_SDRAM_BASE >> 20) #define DRAM_SIZE CONFIG_DRAM_SIZE_MB @@ -132,6 +134,7 @@ static void backlight_en(void) #define TPS65090_BUS 4 /* Snow-specific */
#define FET1_CTRL 0x0f +#define FET4_CTRL 0x12 #define FET6_CTRL 0x14
static void lcd_vdd(void) @@ -147,6 +150,12 @@ static void backlight_vdd(void) udelay(LCD_T5_DELAY_MS * 1000); }
+static void sdmmc_vdd(void) +{ + /* Enable FET4, P3.3V_SDCARD */ + tps65090_fet_enable(TPS65090_BUS, FET4_CTRL); +} + //static struct video_info smdk5250_dp_config = { static struct video_info dp_video_info = { /* FIXME: fix video_info struct to use const for name */ @@ -179,6 +188,24 @@ static void disable_usb30_pll(void) gpio_direction_output(usb3_pll_l, 0); }
+static void setup_storage(void) +{ + /* MMC0: Fixed, 8 bit mode, connected with GPIO. */ + if (clock_set_mshci(PERIPH_ID_SDMMC0)) + printk(BIOS_CRIT, "%s: Failed to set MMC0 clock.\n", __func__); + if (gpio_direction_output(MMC0_GPIO_PIN, 1)) { + printk(BIOS_CRIT, "%s: Unable to power on MMC0.\n", __func__); + } + gpio_set_pull(MMC0_GPIO_PIN, GPIO_PULL_NONE); + gpio_set_drv(MMC0_GPIO_PIN, GPIO_DRV_4X); + exynos_pinmux_sdmmc0(); + + /* MMC2: Removable, 4 bit mode, no GPIO. */ + /* (Must be after romstage to avoid breaking SDMMC boot.) */ + clock_set_mshci(PERIPH_ID_SDMMC2); + exynos_pinmux_sdmmc2(); +} + static void gpio_init(void) { /* Set up the I2C busses. */ @@ -217,6 +244,7 @@ static void mainboard_init(device_t dev) void *fb_addr = (void *)(get_fb_base_kb() * KiB);
gpio_init(); + setup_storage();
i2c_init(TPS65090_BUS, I2C_0_SPEED, I2C_SLAVE); i2c_init(7, I2C_0_SPEED, I2C_SLAVE); @@ -229,6 +257,8 @@ static void mainboard_init(device_t dev) /* Disable USB3.0 PLL to save 250mW of power */ disable_usb30_pll();
+ sdmmc_vdd(); + set_vbe_mode_info_valid(&edid, (uintptr_t)fb_addr);
lcd_vdd(); diff --git a/src/mainboard/google/snow/romstage.c b/src/mainboard/google/snow/romstage.c index 3a8b5e8..44074c5 100644 --- a/src/mainboard/google/snow/romstage.c +++ b/src/mainboard/google/snow/romstage.c @@ -42,7 +42,6 @@ #include "exynos5250.h"
#define PMIC_BUS 0 -#define MMC0_GPIO_PIN (58)
static void setup_power(int is_resume) { @@ -96,23 +95,6 @@ static void setup_power(int is_resume) } }
-static void setup_storage(void) -{ - /* MMC0: Fixed, 8 bit mode, connected with GPIO. */ - if (clock_set_mshci(PERIPH_ID_SDMMC0)) - printk(BIOS_CRIT, "%s: Failed to set MMC0 clock.\n", __func__); - if (gpio_direction_output(MMC0_GPIO_PIN, 1)) { - printk(BIOS_CRIT, "%s: Unable to power on MMC0.\n", __func__); - } - gpio_set_pull(MMC0_GPIO_PIN, GPIO_PULL_NONE); - gpio_set_drv(MMC0_GPIO_PIN, GPIO_DRV_4X); - exynos_pinmux_sdmmc0(); - - /* MMC2: Removable, 4 bit mode, no GPIO. */ - clock_set_mshci(PERIPH_ID_SDMMC2); - exynos_pinmux_sdmmc2(); -} - static void setup_graphics(void) { exynos_pinmux_dphpd(); @@ -176,7 +158,6 @@ void main(void) wakeup(); }
- setup_storage(); setup_gpio(); setup_graphics();
-
Isaac Christensen