sunxi: mmc: Improve reset procedure
Cards should always be reset and threshold set. This fixes eMMC on H616.
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
[Andre: use macro-defined offsets to fix build on older SoCs]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/drivers/mmc/sunxi_mmc.h b/drivers/mmc/sunxi_mmc.h
index f4ae5a7..7186516 100644
--- a/drivers/mmc/sunxi_mmc.h
+++ b/drivers/mmc/sunxi_mmc.h
@@ -37,7 +37,9 @@
u32 res0; /* 0x54 reserved */
u32 a12a; /* 0x58 Auto command 12 argument */
u32 ntsr; /* 0x5c New timing set register */
- u32 res1[8];
+ u32 res1[6];
+ u32 hwrst; /* 0x78 Hardware Reset */
+ u32 res5;
u32 dmac; /* 0x80 internal DMA control */
u32 dlba; /* 0x84 internal DMA descr list base address */
u32 idst; /* 0x88 internal DMA status */
@@ -46,7 +48,8 @@
u32 cbda; /* 0x94 */
u32 res2[26];
#if defined(CONFIG_SUNXI_GEN_SUN6I) || defined(CONFIG_SUN50I_GEN_H6) || defined(CONFIG_SUNXI_GEN_NCAT2)
- u32 res3[17];
+ u32 thldc; /* 0x100 Threshold control */
+ u32 res3[16];
u32 samp_dl;
u32 res4[46];
#endif
@@ -57,6 +60,7 @@
#define SUNXI_MMC_CLK_ENABLE (0x1 << 16)
#define SUNXI_MMC_CLK_DIVIDER_MASK (0xff)
+#define SUNXI_MMC_GCTRL 0x000
#define SUNXI_MMC_GCTRL_SOFT_RESET (0x1 << 0)
#define SUNXI_MMC_GCTRL_FIFO_RESET (0x1 << 1)
#define SUNXI_MMC_GCTRL_DMA_RESET (0x1 << 2)
@@ -123,6 +127,10 @@
#define SUNXI_MMC_NTSR_MODE_SEL_NEW (0x1 << 31)
+#define SUNXI_MMC_HWRST 0x078
+#define SUNXI_MMC_HWRST_ASSERT (0x0 << 0)
+#define SUNXI_MMC_HWRST_DEASSERT (0x1 << 0)
+
#define SUNXI_MMC_IDMAC_RESET (0x1 << 0)
#define SUNXI_MMC_IDMAC_FIXBURST (0x1 << 1)
#define SUNXI_MMC_IDMAC_ENABLE (0x1 << 7)
@@ -133,6 +141,12 @@
#define SUNXI_MMC_COMMON_CLK_GATE (1 << 16)
#define SUNXI_MMC_COMMON_RESET (1 << 18)
+#define SUNXI_MMC_THLDC 0x100
+#define SUNXI_MMC_THLDC_READ_EN (0x1 << 0)
+#define SUNXI_MMC_THLDC_BSY_CLR_INT_EN (0x1 << 1)
+#define SUNXI_MMC_THLDC_WRITE_EN (0x1 << 2)
+#define SUNXI_MMC_THLDC_READ_THLD(x) (((x) & 0xfff) << 16)
+
#define SUNXI_MMC_CAL_DL_SW_EN (0x1 << 7)
#endif /* _SUNXI_MMC_H */