[U-Boot] [PATCH v5 14/21] rockchip: mmc: get the fifo mode and fifo depth property from dts

[Lin Huang]

rk3036 mmc do not have internal dma, so we use fifo mode when read
and write data, we get the fifo mode and fifo depth property from
dts, pass to dw_mmc driver.

Signed-off-by: Lin Huang <hl at rock-chips.com>
---
 arch/arm/dts/rk3036.dtsi      |  1 +
 drivers/mmc/rockchip_dw_mmc.c | 28 ++++++++++++++++++++++------
 2 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/arch/arm/dts/rk3036.dtsi b/arch/arm/dts/rk3036.dtsi
index 0daae1e..ecf5416 100644
--- a/arch/arm/dts/rk3036.dtsi
+++ b/arch/arm/dts/rk3036.dtsi
@@ -257,6 +257,7 @@
 		cap-mmc-highspeed;
 		mmc-ddr-1_8v;
 		disable-wp;
+		fifo-mode;
 		non-removable;
 		num-slots = <1>;
 		default-sample-phase = <158>;
diff --git a/drivers/mmc/rockchip_dw_mmc.c b/drivers/mmc/rockchip_dw_mmc.c
index f11c8e0..616e0bb 100644
--- a/drivers/mmc/rockchip_dw_mmc.c
+++ b/drivers/mmc/rockchip_dw_mmc.c
@@ -50,8 +50,10 @@ static int rockchip_dwmmc_ofdata_to_platdata(struct udevice *dev)
 	host->get_mmc_clk = rockchip_dwmmc_get_mmc_clk;
 	host->priv = dev;
 
-	/* TODO(sjg at chromium.org): Remove the need for this hack */
-	host->dev_index = (ulong)host->ioaddr == 0xff0f0000 ? 0 : 1;
+	/* use non-removeable as sdcard and emmc as judgement */
+	if (fdtdec_lookup_phandle(gd->fdt_blob, dev->of_offset, "non-removable")
+					== -FDT_ERR_NOTFOUND)
+		host->dev_index = 1;
 
 	return 0;
 }
@@ -63,6 +65,7 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
 	struct dwmci_host *host = &priv->host;
 	u32 minmax[2];
 	int ret;
+	u32 fifo_depth;
 
 	priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
 	if (IS_ERR(priv->grf))
@@ -71,10 +74,23 @@ static int rockchip_dwmmc_probe(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	ret = fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
-				   "clock-freq-min-max", minmax, 2);
-	if (!ret)
-		ret = add_dwmci(host, minmax[1], minmax[0]);
+	if (fdtdec_get_int_array(gd->fdt_blob, dev->of_offset,
+				 "clock-freq-min-max", minmax, 2))
+		return -EINVAL;
+
+	fifo_depth = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
+				    "fifo-depth", 0);
+	if (fifo_depth < 0)
+		return -EINVAL;
+
+	host->fifoth_val = MSIZE(0x2) |
+		RX_WMARK(fifo_depth / 2 - 1) | TX_WMARK(fifo_depth / 2);
+
+	if (fdtdec_lookup_phandle(gd->fdt_blob, dev->of_offset, "fifo-mode")
+					!= -FDT_ERR_NOTFOUND)
+		host->fifo_mode = 1;
+
+	ret = add_dwmci(host, minmax[1], minmax[0]);
 	if (ret)
 		return ret;
 
-- 
1.9.1