Re: [patch 3/4 2.6.23-rc2 + mm2-git-mmc] MMC core learns about SPI

[Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>]

Hi David and all,

I need the following patch on my (little endian) System to successfully
read the csd/cid structure.

Sascha


CSD/CID is transfered in big endian format. Convert it to cpu endianess.

Signed-off-by: Sascha Hauer <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>

---
 drivers/mmc/core/mmc_ops.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Index: linux-2.6-arm/drivers/mmc/core/mmc_ops.c
===================================================================
--- linux-2.6-arm.orig/drivers/mmc/core/mmc_ops.c
+++ linux-2.6-arm/drivers/mmc/core/mmc_ops.c
@@ -207,6 +207,7 @@ mmc_send_cxd_data(struct mmc_host *host,
 	struct mmc_data data;
 	struct scatterlist sg;
 	void *data_buf;
+	int i;
 
 	/* dma onto stack is unsafe/nonportable, but callers here
 	 * normally provide temporary on-stack buffers.
@@ -246,7 +247,11 @@ mmc_send_cxd_data(struct mmc_host *host,
 
 	mmc_wait_for_req(host, &mrq);
 
-	memcpy(buf, data_buf, len);
+	for (i = 0; i < (len >> 2); i++) {
+		u32 *buf32 = buf;
+		buf32[i] = be32_to_cpu(*((u32 *)data_buf + i));
+	}
+
 	kfree(data_buf);
 
 	if (cmd.error != MMC_ERR_NONE)


-- 
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