Hi Rommel,

Looks good to me. Thank you.

Acked-by: Jaehoon Chung jh80.chung@samsung.com

On 11/08/2012 06:46 AM, Rommel G Custodio wrote:

modification for commit 804c7f422169212e92530e1ddaf74bf1ca9ebfa1

The original patch contained a bug. Using a char with sdhci_readl/sdhci_writel operation. The adjacent bytes to SDHCI_HOST_CONTROL (specially SDHCI_POWER_CONTROL) get mangled and can result in the controller entering an unstable state.

This patch also moves the process inside sdhci_init().

Signed-off-by: Rommel G Custodio sessyargc@gmail.com

drivers/mmc/sdhci.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 7845f87..fae2169 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -82,13 +82,6 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data, unsigned int start_addr) { unsigned int stat, rdy, mask, timeout, block = 0; -#ifdef CONFIG_MMC_SDMA

• unsigned char ctrl;
• ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
• ctrl &= ~SDHCI_CTRL_DMA_MASK;
• ctrl |= SDHCI_CTRL_SDMA;
• sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);

-#endif

timeout = 1000000; rdy = SDHCI_INT_SPACE_AVAIL | SDHCI_INT_DATA_AVAIL; @@ -386,6 +379,14 @@ int sdhci_init(struct mmc *mmc) { struct sdhci_host *host = (struct sdhci_host *)mmc->priv;

+#ifdef CONFIG_MMC_SDMA

• unsigned int ctrl;
• ctrl = sdhci_readl(host, SDHCI_HOST_CONTROL);
• ctrl &= ~SDHCI_CTRL_DMA_MASK;
• ctrl |= SDHCI_CTRL_SDMA;
• sdhci_writel(host, ctrl, SDHCI_HOST_CONTROL);

+#endif

• if ((host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR) && !aligned_buffer) { aligned_buffer = memalign(8, 512*1024); if (!aligned_buffer) {