diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch')
| -rw-r--r-- | target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch b/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch deleted file mode 100644 index 275504b358..0000000000 --- a/target/linux/goldfish/patches-2.6.30/0094-mmc-sd-Add-new-CONFIG_MMC_PARANOID_SD_INIT-for-ena.patch +++ /dev/null @@ -1,69 +0,0 @@ -From 66983857a54479d76ce6dbd8399e1276698bd3c5 Mon Sep 17 00:00:00 2001 -From: San Mehat <san@google.com> -Date: Tue, 11 Nov 2008 09:35:36 -0800 -Subject: [PATCH 094/134] mmc: sd: Add new CONFIG_MMC_PARANOID_SD_INIT for enabling retries during SD detection - -Signed-off-by: San Mehat <san@google.com> ---- - drivers/mmc/core/Kconfig | 8 ++++++++ - drivers/mmc/core/sd.c | 24 ++++++++++++++++++++++-- - 2 files changed, 30 insertions(+), 2 deletions(-) - ---- a/drivers/mmc/core/Kconfig -+++ b/drivers/mmc/core/Kconfig -@@ -14,3 +14,11 @@ config MMC_UNSAFE_RESUME - This option is usually just for embedded systems which use - a MMC/SD card for rootfs. Most people should say N here. - -+config MMC_PARANOID_SD_INIT -+ bool "Enable paranoid SD card initialization (EXPERIMENTAL)" -+ help -+ If you say Y here, the MMC layer will be extra paranoid -+ about re-trying SD init requests. This can be a useful -+ work-around for buggy controllers and hardware. Enable -+ if you are experiencing issues with SD detection. -+ ---- a/drivers/mmc/core/sd.c -+++ b/drivers/mmc/core/sd.c -@@ -336,7 +336,9 @@ static int mmc_sd_init_card(struct mmc_h - int err; - u32 cid[4]; - unsigned int max_dtr; -- -+#ifdef CONFIG_MMC_PARANOID_SD_INIT -+ int retries; -+#endif - BUG_ON(!host); - WARN_ON(!host->claimed); - -@@ -439,11 +441,29 @@ static int mmc_sd_init_card(struct mmc_h - err = mmc_decode_scr(card); - if (err < 0) - goto free_card; -- - /* - * Fetch switch information from card. - */ -+#ifdef CONFIG_MMC_PARANOID_SD_INIT -+ for (retries = 1; retries <= 3; retries++) { -+ err = mmc_read_switch(card); -+ if (!err) { -+ if (retries > 1) { -+ printk(KERN_WARNING -+ "%s: recovered\n", -+ mmc_hostname(host)); -+ } -+ break; -+ } else { -+ printk(KERN_WARNING -+ "%s: read switch failed (attempt %d)\n", -+ mmc_hostname(host), retries); -+ } -+ } -+#else - err = mmc_read_switch(card); -+#endif -+ - if (err) - goto free_card; - } |