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authorStephen Warren <swarren@nvidia.com>2012-11-02 06:56:13 +0000
committerTom Warren <twarren@nvidia.com>2012-11-19 08:15:42 -0700
commit72573543b5b9f788b46fb9e7ab3372cfeba8d25f (patch)
treebbf2323e3cfe21d4faa0e5599cfcce7ea35c5cd6 /board/nvidia
parent8c0ec0dbc4cce76c6c745858116a404791d28b8b (diff)
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ARM: tegra: enable 8-bit SD slots in board files
Harmony contains an SD slot with all 8 bits routed. This allows plugging in an eMMC-chip-in-SD-form-factor. Seaboard/Springbank/Ventana/AC100 all have an eMMC chip with all 8 bits hooked up. Now that the U-Boot eMMC code fully supports 8-bit operation, initialize those ports as 8-bit instead of 4-bit to improve performance. Whistler was already registering its ports as 8-bit. TrimSlice doesn't have any 8-bit ports. I don't have any Avionic Design boards nor the Colibri board to test with. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'board/nvidia')
-rw-r--r--board/nvidia/harmony/harmony.c5
-rw-r--r--board/nvidia/seaboard/seaboard.c5
2 files changed, 4 insertions, 6 deletions
diff --git a/board/nvidia/harmony/harmony.c b/board/nvidia/harmony/harmony.c
index c7590ac..93430ed 100644
--- a/board/nvidia/harmony/harmony.c
+++ b/board/nvidia/harmony/harmony.c
@@ -64,9 +64,8 @@ int board_mmc_init(bd_t *bd)
pin_mux_mmc();
debug("board_mmc_init: init SD slot J26\n");
- /* init dev 0, SD slot J26, with 4-bit bus */
- /* The board has an 8-bit bus, but 8-bit doesn't work yet */
- tegra_mmc_init(0, 4, GPIO_PI6, GPIO_PH2);
+ /* init dev 0, SD slot J26, with 8-bit bus */
+ tegra_mmc_init(0, 8, GPIO_PI6, GPIO_PH2);
debug("board_mmc_init: init SD slot J5\n");
/* init dev 2, SD slot J5, with 4-bit bus */
diff --git a/board/nvidia/seaboard/seaboard.c b/board/nvidia/seaboard/seaboard.c
index c412c07..3e33da0 100644
--- a/board/nvidia/seaboard/seaboard.c
+++ b/board/nvidia/seaboard/seaboard.c
@@ -71,9 +71,8 @@ int board_mmc_init(bd_t *bd)
pin_mux_mmc();
debug("board_mmc_init: init eMMC\n");
- /* init dev 0, eMMC chip, with 4-bit bus */
- /* The board has an 8-bit bus, but 8-bit doesn't work yet */
- tegra_mmc_init(0, 4, -1, -1);
+ /* init dev 0, eMMC chip, with 8-bit bus */
+ tegra_mmc_init(0, 8, -1, -1);
debug("board_mmc_init: init SD slot\n");
/* init dev 1, SD slot, with 4-bit bus */