Add support for upstream linux clock and map U-Boot property to the one
use in upstream linux where supported.
Also add handling for the use_internal_cd that on upstream is hardcoded
enabled on mt7620.
Signed-off-by: Christian Marangi <ansuels...@gmail.com>
---
drivers/mmc/mtk-sd.c | 33 +++++++++++++++++++++++++++++----
1 file changed, 29 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 296aaee7331..93878900dec 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -336,6 +336,7 @@ struct msdc_compatible {
bool enhance_rx;
bool builtin_pad_ctrl;
bool default_pad_dly;
+ bool use_internal_cd;
};
struct msdc_delay_phase {
@@ -366,6 +367,10 @@ struct msdc_host {
struct clk src_clk_cg; /* optional, MSDC source clock control gate */
struct clk h_clk; /* MSDC core clock */
+ /* upstream linux clock */
+ struct clk axi_cg_clk; /* optional, AXI clock */
+ struct clk ahb_cg_clk; /* optional, AHB clock */
+
u32 src_clk_freq; /* source clock */
u32 mclk; /* mmc framework required bus clock */
u32 sclk; /* actual calculated bus clock */
@@ -1638,6 +1643,11 @@ static void msdc_ungate_clock(struct msdc_host *host)
clk_enable(&host->h_clk);
if (host->src_clk_cg.dev)
clk_enable(&host->src_clk_cg);
+
+ if (host->axi_cg_clk.dev)
+ clk_enable(&host->axi_cg_clk);
+ if (host->ahb_cg_clk.dev)
+ clk_enable(&host->ahb_cg_clk);
}
static int msdc_drv_probe(struct udevice *dev)
@@ -1716,19 +1726,33 @@ static int msdc_of_to_plat(struct udevice *dev)
clk_get_by_name(dev, "source_cg", &host->src_clk_cg); /* optional */
+ /* upstream linux clock */
+ clk_get_by_name(dev, "axi_cg", &host->axi_cg_clk); /* optional */
+ clk_get_by_name(dev, "ahb_cg", &host->ahb_cg_clk); /* optional */
+
#if CONFIG_IS_ENABLED(DM_GPIO)
gpio_request_by_name(dev, "wp-gpios", 0, &host->gpio_wp, GPIOD_IS_IN);
gpio_request_by_name(dev, "cd-gpios", 0, &host->gpio_cd, GPIOD_IS_IN);
#endif
host->hs400_ds_delay = dev_read_u32_default(dev, "hs400-ds-delay", 0);
- host->hs200_cmd_int_delay =
- dev_read_u32_default(dev, "cmd_int_delay", 0);
+ if (dev_read_u32(dev, "mediatek,hs200-cmd-int-delay",
+ &host->hs200_cmd_int_delay))
+ host->hs200_cmd_int_delay =
+ dev_read_u32_default(dev, "cmd_int_delay", 0);
+
host->hs200_write_int_delay =
dev_read_u32_default(dev, "write_int_delay", 0);
- host->latch_ck = dev_read_u32_default(dev, "latch-ck", 0);
+
+ if (dev_read_u32(dev, "mediatek,latch-ck", &host->latch_ck))
+ host->latch_ck = dev_read_u32_default(dev, "latch-ck", 0);
+
host->r_smpl = dev_read_u32_default(dev, "r_smpl", 0);
- host->builtin_cd = dev_read_u32_default(dev, "builtin-cd", 0);
+ if (dev_read_bool(dev, "mediatek,hs400-cmd-resp-sel-rising"))
+ host->r_smpl = 1;
+
+ host->builtin_cd = dev_read_u32_default(dev, "builtin-cd", 0) ||
+ host->dev_comp->use_internal_cd;
host->cd_active_high = dev_read_bool(dev, "cd-active-high");
return 0;
@@ -1776,6 +1800,7 @@ static const struct msdc_compatible mt7620_compat = {
.enhance_rx = false,
.builtin_pad_ctrl = true,
.default_pad_dly = true,
+ .use_internal_cd = true,
};
static const struct msdc_compatible mt7621_compat = {
--
2.43.0
