Author: wigyori Date: 2015-09-13 17:11:27 +0200 (Sun, 13 Sep 2015) New Revision: 46894
Added: trunk/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch Log: packages: uboot-sunxi: fix mmc transfer timeout for slow sdcards. This should fix a issue reported in ticket #20387. Signed-off-by: Yousong Zhou <[email protected]> Added: trunk/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch =================================================================== --- trunk/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch (rev 0) +++ trunk/package/boot/uboot-sunxi/patches/004-sunxi-mmc-set-transfer-timeout-according-to-byte_cnt.patch 2015-09-13 15:11:27 UTC (rev 46894) @@ -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 <[email protected]> ++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 <[email protected]> ++--- ++ 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 ++ _______________________________________________ openwrt-commits mailing list [email protected] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-commits
