From cd73603269ddeeddb633b3199c6e24f6e82acdf0 Mon Sep 17 00:00:00 2001 From: Zoltan Herpai <wigyori@uid0.hu> Date: Sun, 13 Sep 2015 15:11:27 +0000 Subject: [PATCH] packages: uboot-sunxi: fix mmc transfer timeout for slow sdcards. This should fix a issue reported in ticket #20387. Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> SVN-Revision: 46894 --- ...ansfer-timeout-according-to-byte_cnt.patch | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch diff --git a/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch b/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch new file mode 100644 index 00000000000..964aa577b18 --- /dev/null +++ b/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch @@ -0,0 +1,42 @@ +diff --git a/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch b/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch +new file mode 100644 +index 0000000..180b60b +--- /dev/null ++++ b/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch +@@ -0,0 +1,36 @@ ++From 8a5481e2e51a86e858c4f1481729421f26cc240c Mon Sep 17 00:00:00 2001 ++From: Yousong Zhou <yszhou4tech@gmail.com> ++Date: Sat, 29 Aug 2015 21:26:11 +0800 ++Subject: [PATCH] sunxi: mmc: set transfer timeout according to byte_cnt. ++ ++Originally a timeout value of 2 seconds was used regardless of the size ++of data to be transfered. This prevented slow devices from working ++correctly while there was no much gain for faster devices, e.g. it takes ++3708ms for a transfer of uImage of size 1899008 bytes. ++ ++Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> ++--- ++ drivers/mmc/sunxi_mmc.c | 6 ++++-- ++ 1 file changed, 4 insertions(+), 2 deletions(-) ++ ++diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c ++index e7ab828..7a990f7 100644 ++--- a/drivers/mmc/sunxi_mmc.c +++++ b/drivers/mmc/sunxi_mmc.c ++@@ -257,9 +257,11 @@ static int mmc_trans_data_by_cpu(struct mmc *mmc, struct mmc_data *data) ++ const uint32_t status_bit = reading ? SUNXI_MMC_STATUS_FIFO_EMPTY : ++ SUNXI_MMC_STATUS_FIFO_FULL; ++ unsigned i; ++- unsigned byte_cnt = data->blocksize * data->blocks; ++- unsigned timeout_msecs = 2000; ++ unsigned *buff = (unsigned int *)(reading ? data->dest : data->src); +++ unsigned byte_cnt = data->blocksize * data->blocks; +++ unsigned timeout_msecs = byte_cnt >> 8; +++ if (timeout_msecs < 2000) +++ timeout_msecs = 2000; ++ ++ /* Always read / write data through the CPU */ ++ setbits_le32(&mmchost->reg->gctrl, SUNXI_MMC_GCTRL_ACCESS_BY_AHB); ++-- ++1.7.10.4 ++ -- GitLab