From 4e3d89ba948eef801ffd46ef862cdede5b3f8320 Mon Sep 17 00:00:00 2001 From: Yauhen Kharuzhy Date: Thu, 7 May 2009 00:43:30 +0300 Subject: [PATCH] mmc: Fix decoding of SCR & function switch data on little-endian machines SCR & switch data are read from card as big-endian words and should be converted to CPU byte order. Signed-off-by: Yauhen Kharuzhy Signed-off-by: Andy Fleming --- drivers/mmc/mmc.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 64a311dcc2..8c736ce497 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -487,8 +487,8 @@ retry_scr: return err; } - mmc->scr[0] = scr[0]; - mmc->scr[1] = scr[1]; + mmc->scr[0] = __be32_to_cpu(scr[0]); + mmc->scr[1] = __be32_to_cpu(scr[1]); switch ((mmc->scr[0] >> 24) & 0xf) { case 0: @@ -518,7 +518,7 @@ retry_scr: return err; /* The high-speed function is busy. Try again */ - if (!switch_status[7] & SD_HIGHSPEED_BUSY) + if (!(__be32_to_cpu(switch_status[7]) & SD_HIGHSPEED_BUSY)) break; } @@ -526,7 +526,7 @@ retry_scr: mmc->card_caps |= MMC_MODE_4BIT; /* If high-speed isn't supported, we return */ - if (!(switch_status[3] & SD_HIGHSPEED_SUPPORTED)) + if (!(__be32_to_cpu(switch_status[3]) & SD_HIGHSPEED_SUPPORTED)) return 0; err = sd_switch(mmc, SD_SWITCH_SWITCH, 0, 1, (u8 *)&switch_status); @@ -534,7 +534,7 @@ retry_scr: if (err) return err; - if ((switch_status[4] & 0x0f000000) == 0x01000000) + if ((__be32_to_cpu(switch_status[4]) & 0x0f000000) == 0x01000000) mmc->card_caps |= MMC_MODE_HS; return 0; -- 2.39.5