On Wednesday 31 August 2011 06:31 AM, Kukjin Kim wrote:
Tushar Behera wrote:
Platform data for SDHCI controller on ORIGEN board is missing the
support for 8-bit bus width. The platform data is extended in sync
with other EXYNOS4 machines.
Signed-off-by: Tushar Behera<tushar.behera@xxxxxxxxxx>
---
arch/arm/mach-exynos4/mach-origen.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-exynos4/mach-origen.c
b/arch/arm/mach-exynos4/mach-
origen.c
index ae18812..6b6cd77 100644
--- a/arch/arm/mach-exynos4/mach-origen.c
+++ b/arch/arm/mach-exynos4/mach-origen.c
@@ -75,11 +75,19 @@ static struct s3c2410_uartcfg origen_uartcfgs[]
__initdata =
{
static struct s3c_sdhci_platdata origen_hsmmc0_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_INTERNAL,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
+#ifdef CONFIG_EXYNOS4_SDHCI_CH0_8BIT
+ .max_width = 8,
+ .host_caps = MMC_CAP_8_BIT_DATA,
+#endif
};
static struct s3c_sdhci_platdata origen_hsmmc2_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_INTERNAL,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
+#ifdef CONFIG_EXYNOS4_SDHCI_CH2_8BIT
+ .max_width = 8,
+ .host_caps = MMC_CAP_8_BIT_DATA,
+#endif
};
static struct platform_device *origen_devices[] __initdata = {
--
1.7.4.1
Hi Tushar,
I wonder the bus width of SDHCI controller can be changed manually on ORIGEN
like SMDK board.
Thanks for your review.
On ORIGEN board, we have wire connections for HSMMC-0/2/3 between the
MMC port and the SoC. Hence ideally we can work with HSMMC2 in both
4-bit and 8-bit mode. However HSMMC0 can only work in 4-bit mode.
Also IIRC WLAN would be using HSMMC-3 controller for its operations. So
we would have conflict when HSMMC2 is working in 8-bit mode and WLAN is
also enabled. Hence it appears better to drop this patch now.
Thanks.
Best regards,
Kgene.
--
Kukjin Kim<kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
--
Tushar Behera
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