diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2014-06-24 13:47:49 +0200 |
|---|---|---|
| committer | Stefan Agner <stefan.agner@toradex.com> | 2014-07-21 14:26:21 +0200 |
| commit | 29b19ff42a7d4c609f824c13ca139eef7332ff1f (patch) | |
| tree | b23a3d8879cc473d9804582ceee93e24452119f6 /arch/arm | |
| parent | ff09771639a39c834f364a75faa49bc44bac901e (diff) | |
mmc: tegra: use 1.8V quirk only on affected instances
The 1.8V quirk also affected the internal eMMC which disabled newer
modes such as SDR50, SDR104 and DDR50. This in turn lead to an
out of spec usage since the clock was still 50MHz.
By creating a no_1v8 field in the platform data we can now enable
this work around on a per-instance basis. Hence we enable the
quirk only on the controllers which are connected to the external
SD-slots.
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-tegra/board-apalis_t30.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/board-colibri_t30.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/sdhci.h | 1 |
3 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-apalis_t30.c b/arch/arm/mach-tegra/board-apalis_t30.c index 5755ff9adce2..d7e5396220e9 100644 --- a/arch/arm/mach-tegra/board-apalis_t30.c +++ b/arch/arm/mach-tegra/board-apalis_t30.c @@ -637,6 +637,7 @@ static struct tegra_sdhci_platform_data apalis_t30_mmccard_platform_data = { .power_gpio = -1, .tap_delay = 0x0f, .wp_gpio = -1, + .no_1v8 = 1, }; static struct tegra_sdhci_platform_data apalis_t30_sdcard_platform_data = { @@ -646,6 +647,7 @@ static struct tegra_sdhci_platform_data apalis_t30_sdcard_platform_data = { .power_gpio = -1, .tap_delay = 0x0f, .wp_gpio = -1, + .no_1v8 = 1, }; static void __init apalis_t30_sdhci_init(void) diff --git a/arch/arm/mach-tegra/board-colibri_t30.c b/arch/arm/mach-tegra/board-colibri_t30.c index 39f0b7c7d8a0..6e6df2afb004 100644 --- a/arch/arm/mach-tegra/board-colibri_t30.c +++ b/arch/arm/mach-tegra/board-colibri_t30.c @@ -697,6 +697,7 @@ static struct tegra_sdhci_platform_data colibri_t30_sdcard_platform_data = { .power_gpio = -1, .tap_delay = 0x0f, .wp_gpio = -1, + .no_1v8 = 1, }; static void __init colibri_t30_sdhci_init(void) diff --git a/arch/arm/mach-tegra/include/mach/sdhci.h b/arch/arm/mach-tegra/include/mach/sdhci.h index e307506eb40b..00fd5c678b5b 100644 --- a/arch/arm/mach-tegra/include/mach/sdhci.h +++ b/arch/arm/mach-tegra/include/mach/sdhci.h @@ -33,6 +33,7 @@ struct tegra_sdhci_platform_data { int wp_gpio; int power_gpio; int is_8bit; + int no_1v8; int pm_flags; int pm_caps; unsigned int max_clk_limit; |