On Mon, May 21, 2012 at 7:48 PM, Stephen Warren swarren@wwwdotorg.orgwrote:
On 05/21/2012 06:41 PM, Simon Glass wrote:
Hi Stephen,
On Wed, May 16, 2012 at 4:54 PM, Stephen Warren <swarren@wwwdotorg.org mailto:swarren@wwwdotorg.org> wrote:
From: Stephen Warren <swarren@nvidia.com <mailto:swarren@nvidia.com
Acked-by: Simon Glass sjg@chromium.org
This will be used on TrimSlice. Signed-off-by: Stephen Warren <swarren@nvidia.com <mailto:swarren@nvidia.com>> --- arch/arm/cpu/armv7/tegra2/funcmux.c | 7 +++++++ arch/arm/include/asm/arch-tegra2/funcmux.h | 1 + 2 files changed, 8 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/armv7/tegra2/funcmux.c b/arch/arm/cpu/armv7/tegra2/funcmux.c index 1559869..820ba4e 100644 --- a/arch/arm/cpu/armv7/tegra2/funcmux.c +++ b/arch/arm/cpu/armv7/tegra2/funcmux.c @@ -127,6 +127,13 @@ int funcmux_select(enum periph_id id, intconfig)
} break; + case PERIPH_ID_SDMMC1: + if (config == FUNCMUX_SDMMC1_SDIO1_4BIT) { + pinmux_set_func(PINGRP_SDIO1,PMUX_FUNC_SDIO1);
+ pinmux_tristate_disable(PINGRP_SDIO1); + }else return -1 I think
This is handled at the end of the function; if bad_config is set, it will return -1. (and bad_config is cleared by default in config==FUNCMUX_DEFAULT, and FUNCMUX_SDMMC1_SDIO1_4BIT==FUNCMUX_DEFAULT)
diff --git a/arch/arm/include/asm/arch-tegra2/funcmux.h b/arch/arm/include/asm/arch-tegra2/funcmux.h index 19184d1..b16c496 100644 --- a/arch/arm/include/asm/arch-tegra2/funcmux.h +++ b/arch/arm/include/asm/arch-tegra2/funcmux.h @@ -44,6 +44,7 @@ enum { FUNCMUX_I2C3_DTF = 0, /* SDMMC configs */ + FUNCMUX_SDMMC1_SDIO1_4BIT = 0,The name does not seem consistent - is it not possible to route this peripheral to different pins?
SDMMC1 is the module name, and SDIO1 is the pingroup name it's being routed to. I'm not sure what the inconsistency is. I don't recall if SDMMC1 can be routed to different pingroups or not.