soc: rockchip: disable jtag switching for RK3228/RK3229 SoCs

Disable IO function switching between sdmmc and jtag
for RK3228 and RK3229 SoCs.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c
index 15e71fd6c513..dd81b87d79f0 100644
--- a/drivers/soc/rockchip/grf.c
+++ b/drivers/soc/rockchip/grf.c
@@ -43,6 +43,17 @@ static const struct rockchip_grf_info rk3036_grf __initconst = {
         .num_values = ARRAY_SIZE(rk3036_defaults),
 };
 
+#define RK3228_GRF_SOC_CON6             0x418
+
+static const struct rockchip_grf_value rk3228_defaults[] __initconst = {
+        { "jtag switching", RK3228_GRF_SOC_CON6, HIWORD_UPDATE(0, 1, 8) },
+};
+
+static const struct rockchip_grf_info rk3228_grf __initconst = {
+        .values = rk3228_defaults,
+        .num_values = ARRAY_SIZE(rk3228_defaults),
+};
+
 #define RK3288_GRF_SOC_CON0             0x244
 
 static const struct rockchip_grf_value rk3288_defaults[] __initconst = {
@@ -92,6 +103,9 @@ static const struct of_device_id rockchip_grf_dt_match[] __initconst = {
                 .compatible = "rockchip,rk3036-grf",
                 .data = (void *)&rk3036_grf,
         }, {
+                .compatible = "rockchip,rk3228-grf",
+                .data = (void *)&rk3228_grf,
+        }, {
                 .compatible = "rockchip,rk3288-grf",
                 .data = (void *)&rk3288_grf,
         }, {