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mmc: sunxi: Add DM_MMC support for A80

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Unlike other Allwinner SoC's, A80 comes with different ahb
gate clock offset values and also has mmc common controller.
So support them via driver data.

Cc: Rask Ingemann Lambertsen <rask@formelder.dk>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
This commit is contained in:
Jagan Teki
2019-01-11 22:57:50 +05:30
parent 077960fc7a
commit 939926764e
1 changed files with 24 additions and 0 deletions
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24
drivers/mmc/sunxi_mmc.c
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@ -22,6 +22,7 @@
#ifdef CONFIG_DM_MMC
struct sunxi_mmc_variant {
bool has_reset;
bool has_mmc_common;
u16 gate_offset;
u16 mclk_offset;
u16 reset_offset;
@ -653,6 +654,19 @@ static int sunxi_mmc_probe(struct udevice *dev)
priv->variant->reset_start_bit));
}
if (priv->variant->has_mmc_common) {
u32 *mmc_config_clk, *mmc_common_base;
ret = dev_read_phandle_with_args(dev, "clocks", "#clock-cells", 0,
0, &args);
if (ret)
return ret;
mmc_config_clk = (u32 *)ofnode_get_addr(args.node);
mmc_common_base = (void *)mmc_config_clk + (priv->mmc_no * 4);
setbits_le32(mmc_common_base, BIT(18) | BIT(16));
}
ret = mmc_set_mod_clk(priv, 24000000);
if (ret)
return ret;
@ -697,6 +711,12 @@ static const struct sunxi_mmc_variant sun7i_a20_variant = {
.reset_start_bit = 8,
};
static const struct sunxi_mmc_variant sun9i_a80_variant = {
.has_mmc_common = true,
.gate_offset = 0x580,
.mclk_offset = 0x410,
};
static const struct sunxi_mmc_variant sun50i_h6_variant = {
.has_reset = true,
.gate_offset = 0x84c,
@ -722,6 +742,10 @@ static const struct udevice_id sunxi_mmc_ids[] = {
.compatible = "allwinner,sun8i-a83t-emmc",
.data = (ulong)&sun7i_a20_variant,
},
{
.compatible = "allwinner,sun9i-a80-mmc",
.data = (ulong)&sun9i_a80_variant,
},
{
.compatible = "allwinner,sun50i-a64-mmc",
.data = (ulong)&sun7i_a20_variant,