diff options
| author | Mohan T <mohant@nvidia.com> | 2014-04-17 12:46:23 +0530 |
|---|---|---|
| committer | Seema Khowala <seemaj@nvidia.com> | 2014-04-23 14:07:23 -0700 |
| commit | 233605e971e5c327f6ca922a3d447b900e84fb89 (patch) | |
| tree | 677070f691fc05625d94f9fa4af2d6c2a18f166c /arch/arm/mach-tegra/board-ardbeg-sdhci.c | |
| parent | 7de8b76f06c0e70615f99104ad2f2430219060c4 (diff) | |
ARM: tegra: sdhci: Set drive type A to E1780 and E1784
T124 ERS platforms has more trace length due to
interposer board for WiFi chip. So set drive
strength type A.
Bug 1458921
Change-Id: Iaf4b5539ce4b8a088b91b8c8b8d99d8a64408e81
Signed-off-by: Mohan T <mohant@nvidia.com>
Reviewed-on: http://git-master/r/395844
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/board-ardbeg-sdhci.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-ardbeg-sdhci.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-ardbeg-sdhci.c b/arch/arm/mach-tegra/board-ardbeg-sdhci.c index c8449406a925..9e696786de1a 100644 --- a/arch/arm/mach-tegra/board-ardbeg-sdhci.c +++ b/arch/arm/mach-tegra/board-ardbeg-sdhci.c @@ -463,6 +463,16 @@ int __init ardbeg_sdhci_init(void) tegra_get_board_info(&board_info); if (board_info.board_id == BOARD_E1780) tegra_sdhci_platform_data2.max_clk_limit = 204000000; + + /* E1780 and E1784 are using interposer E1816, Due to this the + * SDIO trace length got increased. So hard coding the drive + * strength to type A for these boards to support 204 Mhz */ + if ((board_info.board_id == BOARD_E1780) || + (board_info.board_id == BOARD_E1784)) { + tegra_sdhci_platform_data0.default_drv_type = + MMC_SET_DRIVER_TYPE_A; + } + tegra_sdhci_platform_data0.max_clk_limit = 136000000; if (board_info.board_id == BOARD_E1781) |