1 files changed, 73 insertions, 0 deletions

diff --git a/meta/packages/uboot/u-boot-mkimage-openmoko-native/mmcinit-power-up.patch b/meta/packages/uboot/u-boot-mkimage-openmoko-native/mmcinit-power-up.patch
new file mode 100644
index 0000000000..fcf54b9fd1
--- /dev/null
+++ b/meta/packages/uboot/u-boot-mkimage-openmoko-native/mmcinit-power-up.patch
@@ -0,0 +1,73 @@
+board/neo1973/neo1973.c (board_late_init): moved MMC power-up to separate
+  function
+cpu/arm920t/s3c24x0/mmc.c (mmc_init): call mmc_power_up and return -ENODEV
+  immediately if there is no card
+
+- Werner Almesberger <werner@openmoko.org>
+
+Index: u-boot/board/neo1973/neo1973.c
+===================================================================
+--- u-boot.orig/board/neo1973/neo1973.c
++++ u-boot/board/neo1973/neo1973.c
+@@ -223,6 +223,19 @@ int board_init (void)
+        return 0;
+ }
+ 
++int mmc_power_up(void)
++{
++#if defined(CONFIG_ARCH_GTA01B_v4)
++       S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
++
++       /* check if sd card is inserted, and power-up if it is */
++       if (gpio->GPFDAT & (1 << 5))
++               return 0;
++       gpio->GPBDAT &= ~(1 << 2);
++#endif /* !CONFIG_ARCH_GTA01B_v4 */
++       return 1;
++}
++
+ int board_late_init(void)
+ {
+        unsigned char tmp;
+@@ -289,14 +302,8 @@ continue_boot:
+        /* switch on the backlight */
+        neo1973_backlight(1);
+ 
+-#if defined(CONFIG_ARCH_GTA01B_v4)
+-       {
+-               /* check if sd card is inserted, and power-up if it is */
+-               S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+-               if (!(gpio->GPFDAT & (1 << 5)))
+-                       gpio->GPBDAT &= ~(1 << 2);
+-       }
+-#endif
++       /* check if sd card is inserted, and power-up if it is */
++       mmc_power_up();
+ 
+        return 0;
+ }
+Index: u-boot/cpu/arm920t/s3c24x0/mmc.c
+===================================================================
+--- u-boot.orig/cpu/arm920t/s3c24x0/mmc.c
++++ u-boot/cpu/arm920t/s3c24x0/mmc.c
+@@ -381,6 +381,11 @@ static void print_sd_cid(const struct sd
+            cid->crc >> 1, cid->crc & 1);
+ }
+ 
++int __attribute__((weak)) mmc_power_up(void)
++{
++       return 1;
++}
++
+ int mmc_init(int verbose)
+ {
+        int retries, rc = -ENODEV;
+@@ -393,6 +398,8 @@ int mmc_init(int verbose)
+        debug("mmc_init(PCLK=%u)\n", get_PCLK());
+ 
+        clk_power->CLKCON |= (1 << 9);
++       if (!mmc_power_up())
++               return -ENODEV;
+ 
+        /* S3C2410 has some bug that prevents reliable operation at higher speed */
+        //sdi->SDIPRE = 0x3e;  /* SDCLK = PCLK/2 / (SDIPRE+1) = 396kHz */