[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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