diff options
| author | Graeme Gregory <dp@xora.org.uk> | 2009-05-16 18:12:31 +0100 |
|---|---|---|
| committer | Graeme Gregory <dp@xora.org.uk> | 2009-05-16 18:12:31 +0100 |
| commit | 775236876ae21a149cd8a1e7eb15dad32c4ff84c (patch) | |
| tree | 1108f63c8da07a671e7742b3870543c1a9dbbf9d /recipes/linux/linux-kirkwood | |
| parent | 71c53615c26094991223f503372dfbfd63f144f5 (diff) | |
linux-kirkwood_2.6.29.2.bb : add kludge to allow SDHC cards to work
Diffstat (limited to 'recipes/linux/linux-kirkwood')
| -rw-r--r-- | recipes/linux/linux-kirkwood/mvsdio.patch | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/recipes/linux/linux-kirkwood/mvsdio.patch b/recipes/linux/linux-kirkwood/mvsdio.patch new file mode 100644 index 0000000000..e4ba675428 --- /dev/null +++ b/recipes/linux/linux-kirkwood/mvsdio.patch @@ -0,0 +1,46 @@ +Patch obtained from http://www.computingplugs.com/index.php/Fixing_SDHC_access_in_the_Orion/Mainline_kernel + +--- a/drivers/mmc/host/mvsdio.c.orig 2009-04-14 20:51:48.000000000 +0000 ++++ b/drivers/mmc/host/mvsdio.c 2009-04-19 15:58:42.261724324 +0000 +@@ -21,6 +21,7 @@ + #include <linux/irq.h> + #include <linux/gpio.h> + #include <linux/mmc/host.h> ++#include <linux/mmc/sd.h> + + #include <asm/sizes.h> + #include <asm/unaligned.h> +@@ -123,6 +124,7 @@ + + dev_dbg(host->dev, "cmd %d (hw state 0x%04x)\n", + cmd->opcode, mvsd_read(MVSD_HW_STATE)); ++ if (cmd->opcode == SD_SWITCH) mdelay(1); /* Voodoo */ + + cmdreg = MVSD_CMD_INDEX(cmd->opcode); + +@@ -620,9 +622,11 @@ + if (ios->bus_width == MMC_BUS_WIDTH_4) + ctrl_reg |= MVSD_HOST_CTRL_DATA_WIDTH_4_BITS; + ++#if 0 + if (ios->timing == MMC_TIMING_MMC_HS || + ios->timing == MMC_TIMING_SD_HS) + ctrl_reg |= MVSD_HOST_CTRL_HI_SPEED_EN; ++#endif + + host->ctrl = ctrl_reg; + mvsd_write(MVSD_HOST_CTRL, ctrl_reg); +--- kernel/drivers/mmc/core/core.c.orig 2009-04-14 20:51:48.000000000 +0000 ++++ kernel/drivers/mmc/core/core.c 2009-04-19 17:36:35.985746917 +0000 +@@ -286,9 +286,9 @@ + * The limit is really 250 ms, but that is + * insufficient for some crappy cards. + */ +- limit_us = 300000; ++ limit_us = 500000; + else +- limit_us = 100000; ++ limit_us = 200000; + + /* + * SDHC cards always use these fixed values. |