rockchip: rk3368: syscon: SGRF support for OF_PLATDATA

In TPL we will need to configure security in the SGRF of the RK3368.
This change adds support for the SGRF as a syscon device, so we can
retrieve its address range through the syscon API in TPL (and can
avoid having to hard-code the address).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/mach-rockchip/rk3368/syscon_rk3368.c b/arch/arm/mach-rockchip/rk3368/syscon_rk3368.c
index 90a993e0c783645185a6eb63d138acfd51fd3576..99d51f0edc0ff431c65860fe6616f30b3f79ea4b 100644 (file)
--- a/arch/arm/mach-rockchip/rk3368/syscon_rk3368.c
+++ b/arch/arm/mach-rockchip/rk3368/syscon_rk3368.c
@@ -18,6 +18,8 @@ static const struct udevice_id rk3368_syscon_ids[] = {
          .data = ROCKCHIP_SYSCON_PMUGRF },
        { .compatible = "rockchip,rk3368-msch",
          .data = ROCKCHIP_SYSCON_MSCH },
+       { .compatible = "rockchip,rk3368-sgrf",
+         .data = ROCKCHIP_SYSCON_SGRF },
        { }
 };
 
@@ -56,4 +58,11 @@ U_BOOT_DRIVER(rockchip_rk3368_msch) = {
        .of_match = rk3368_syscon_ids + 2,
        .bind = rk3368_syscon_bind_of_platdata,
 };
+
+U_BOOT_DRIVER(rockchip_rk3368_sgrf) = {
+       .name = "rockchip_rk3368_sgrf",
+       .id = UCLASS_SYSCON,
+       .of_match = rk3368_syscon_ids + 3,
+       .bind = rk3368_syscon_bind_of_platdata,
+};
 #endif