From: Andre Przywara andre.przywara@arm.com
The A80 handles resets and clock gates for the MMC devices differently, outside of the CCU IP block. Consequently we have a separate clock device with a separate binding for that.
Implement that with the respective clock gates and resets to allow the A80 taking part in the DM_MMC game.
Signed-off-by: Andre Przywara andre.przywara@arm.com [jagan: fix a80 mmc clock config compatible] Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- drivers/clk/sunxi/clk_a80.c | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/clk/sunxi/clk_a80.c b/drivers/clk/sunxi/clk_a80.c index d6dd6a1fa1..efcc7a433d 100644 --- a/drivers/clk/sunxi/clk_a80.c +++ b/drivers/clk/sunxi/clk_a80.c @@ -30,19 +30,45 @@ static const struct ccu_reset a80_resets[] = { [RST_BUS_UART5] = RESET(0x5b4, BIT(21)), };
+static const struct ccu_clk_gate a80_mmc_gates[] = { + [0] = GATE(0x0, BIT(16)), + [1] = GATE(0x4, BIT(16)), + [2] = GATE(0x8, BIT(16)), + [3] = GATE(0xc, BIT(16)), +}; + +static const struct ccu_reset a80_mmc_resets[] = { + [0] = GATE(0x0, BIT(18)), + [1] = GATE(0x4, BIT(18)), + [2] = GATE(0x8, BIT(18)), + [3] = GATE(0xc, BIT(18)), +}; + static const struct ccu_desc a80_ccu_desc = { .gates = a80_gates, .resets = a80_resets, };
+static const struct ccu_desc a80_mmc_clk_desc = { + .gates = a80_mmc_gates, + .resets = a80_mmc_resets, +}; + static int a80_clk_bind(struct udevice *dev) { - return sunxi_reset_bind(dev, ARRAY_SIZE(a80_resets)); + ulong count = ARRAY_SIZE(a80_resets); + + if (device_is_compatible(dev, "allwinner,allwinner,sun9i-a80-mmc")) + count = ARRAY_SIZE(a80_mmc_resets); + + return sunxi_reset_bind(dev, count); }
static const struct udevice_id a80_ccu_ids[] = { { .compatible = "allwinner,sun9i-a80-ccu", .data = (ulong)&a80_ccu_desc }, + { .compatible = "allwinner,sun9i-a80-mmc-config-clk", + .data = (ulong)&a80_mmc_clk_desc }, { } };