From 5af9a56999c3c7ec827447d0b957e3e234f5d9a4 Mon Sep 17 00:00:00 2001 From: Ajay Bhargav Date: Sun, 13 Nov 2011 23:43:12 +0000 Subject: [PATCH] mmc: mv_sdhci: Fix host version read for Armada100 sdhci_readw does not work for host version read in Armada100 series SoCs. This patch fix this issue by making a sdhci_readl call to get host version. Signed-off-by: Ajay Bhargav --- drivers/mmc/mv_sdhci.c | 5 ++++- include/sdhci.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/mv_sdhci.c b/drivers/mmc/mv_sdhci.c index f92caeb..1501974 100644 --- a/drivers/mmc/mv_sdhci.c +++ b/drivers/mmc/mv_sdhci.c @@ -48,7 +48,10 @@ int mv_sdh_init(u32 regbase, u32 max_clk, u32 min_clk, u32 quirks) mv_ops.write_b = mv_sdhci_writeb; host->ops = &mv_ops; #endif - host->version = sdhci_readw(host, SDHCI_HOST_VERSION); + if (quirks & SDHCI_QUIRK_REG32_RW) + host->version = sdhci_readl(host, SDHCI_HOST_VERSION - 2) >> 16; + else + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); add_sdhci(host, max_clk, min_clk); return 0; } diff --git a/include/sdhci.h b/include/sdhci.h index 0690938..800f9d9 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -215,6 +215,7 @@ * quirks */ #define SDHCI_QUIRK_32BIT_DMA_ADDR (1 << 0) +#define SDHCI_QUIRK_REG32_RW (1 << 1) /* to make gcc happy */ struct sdhci_host;