diff options
Diffstat (limited to 'package/boot/uboot-layerscape/patches/0058-mmc-fsl_esdhc-disable-sdhc2-when-no-card-inserted-fo.patch')
| -rw-r--r-- | package/boot/uboot-layerscape/patches/0058-mmc-fsl_esdhc-disable-sdhc2-when-no-card-inserted-fo.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/package/boot/uboot-layerscape/patches/0058-mmc-fsl_esdhc-disable-sdhc2-when-no-card-inserted-fo.patch b/package/boot/uboot-layerscape/patches/0058-mmc-fsl_esdhc-disable-sdhc2-when-no-card-inserted-fo.patch new file mode 100644 index 0000000000..45366ca689 --- /dev/null +++ b/package/boot/uboot-layerscape/patches/0058-mmc-fsl_esdhc-disable-sdhc2-when-no-card-inserted-fo.patch @@ -0,0 +1,56 @@ +From 0499ca266f668c9d72217631151f3b6e15350134 Mon Sep 17 00:00:00 2001 +From: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> +Date: Wed, 15 Jun 2016 17:42:51 +0530 +Subject: [PATCH 58/93] mmc: fsl_esdhc: disable sdhc2 when no card inserted + for ls1012ardb + +This is a temporary workaround patch for ls1012ardb becasue there +was host controller hardware issue found on some RDB boards when +there was no eMMC adapter card inserted. This would cause below +continious error messages in linux. So this patch is to disable +sdhc2 when finding there isn't card inserted. +"mmc1: Controller never released inhibit bit(s)." + +Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> +--- + board/freescale/ls1012ardb/ls1012ardb.c | 24 ++++++++++++++++++++++++ + 1 file changed, 24 insertions(+) + +diff --git a/board/freescale/ls1012ardb/ls1012ardb.c b/board/freescale/ls1012ardb/ls1012ardb.c +index 90cbd5e..ad4d8ee 100644 +--- a/board/freescale/ls1012ardb/ls1012ardb.c ++++ b/board/freescale/ls1012ardb/ls1012ardb.c +@@ -171,6 +171,30 @@ int board_early_init_f(void) + return 0; + } + ++int mmc_check_sdhc2_card(void) ++{ ++ u8 io = 0; ++ u8 is_card = 0; ++ ++ /* Initialize i2c early for Serial flash bank information */ ++ i2c_set_bus_num(0); ++ ++ if (i2c_read(I2C_MUX_IO1_ADDR, 0, 1, &io, 1) < 0) { ++ printf("Error reading i2c boot information!\n"); ++ return 0; /* Don't want to hang() on this error */ ++ } ++ ++ io = io & 0x0c; ++ ++ switch (io) { ++ case 0: ++ case 8: ++ is_card = 1; ++ } ++ ++ return is_card; ++} ++ + int board_init(void) + { + struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; +-- +1.7.9.5 + |