[U-Boot] [PATCH 5/7] ARM: sunxi-mmc: Add mmc support for sun6i / A31
Chen-Yu Tsai
wens at csie.org
Mon Sep 8 15:28:10 CEST 2014
From: Hans de Goede <hdegoede at redhat.com>
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
[wens at csie.org: use setbits_le32 for reset control, drop obsolete changes,
squash "sunxi-mmc: sun6i has its fifo at a different address"]
Signed-off-by: Chen-Yu Tsai <wens at csie.org>
---
arch/arm/include/asm/arch-sunxi/mmc.h | 2 --
drivers/mmc/sunxi_mmc.c | 9 +++++++++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/arch-sunxi/mmc.h b/arch/arm/include/asm/arch-sunxi/mmc.h
index 53196e3..bafde4b 100644
--- a/arch/arm/include/asm/arch-sunxi/mmc.h
+++ b/arch/arm/include/asm/arch-sunxi/mmc.h
@@ -42,8 +42,6 @@ struct sunxi_mmc {
u32 idie; /* 0x8c internal DMA interrupt enable */
u32 chda; /* 0x90 */
u32 cbda; /* 0x94 */
- u32 res1[26];
- u32 fifo; /* 0x100 FIFO access address */
};
#define SUNXI_MMC_CLK_POWERSAVE (0x1 << 17)
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index d4e574f..b035bba 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -57,7 +57,11 @@ static int mmc_resource_init(int sdc_no)
printf("Wrong mmc number %d\n", sdc_no);
return -1;
}
+#ifdef CONFIG_SUN6I
+ mmchost->database = (unsigned int)mmchost->reg + 0x200;
+#else
mmchost->database = (unsigned int)mmchost->reg + 0x100;
+#endif
mmchost->mmc_no = sdc_no;
return 0;
@@ -75,6 +79,11 @@ static int mmc_clk_io_on(int sdc_no)
/* config ahb clock */
setbits_le32(&ccm->ahb_gate0, 1 << AHB_GATE_OFFSET_MMC(sdc_no));
+#if defined(CONFIG_SUN6I)
+ /* unassert reset */
+ setbits_le32(&ccm->ahb_reset0_cfg, 1 << AHB_RESET_OFFSET_MMC(sdc_no));
+#endif
+
/* config mod clock */
pll_clk = clock_get_pll6();
/* should be close to 100 MHz but no more, so round up */
--
2.1.0
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