[PATCH RFC 03/18] rockchip: rk3568: syscon: Add PMUGRF support for OF_PLATDATA

[Pavel Golikov]

The RK3568 has a limited TPL size, so, we expect RK3568 to always use
OF_PLATDATA for its TPL stage.

Add support for the PMUGRF register region in syscon, which is necessary
for RK3568's DRAM controller initialization.

Signed-off-by: Pavel Golikov <paullo612 at ya.ru>
---
 arch/arm/mach-rockchip/rk3568/syscon_rk3568.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/mach-rockchip/rk3568/syscon_rk3568.c b/arch/arm/mach-rockchip/rk3568/syscon_rk3568.c
index 255259eabfd..b9d59a4721e 100644
--- a/arch/arm/mach-rockchip/rk3568/syscon_rk3568.c
+++ b/arch/arm/mach-rockchip/rk3568/syscon_rk3568.c
@@ -21,3 +21,20 @@ U_BOOT_DRIVER(syscon_rk3568) = {
 	.bind = dm_scan_fdt_dev,
 #endif
 };
+
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+static int rk3568_syscon_bind_of_plat(struct udevice *dev)
+{
+	dev->driver_data = dev->driver->of_match->data;
+	debug("syscon: %s %d\n", dev->name, (uint)dev->driver_data);
+
+	return 0;
+}
+
+U_BOOT_DRIVER(rockchip_rk3568_pmugrf) = {
+	.name = "rockchip_rk3568_pmugrf",
+	.id = UCLASS_SYSCON,
+	.of_match = rk3568_syscon_ids + 1,
+	.bind = rk3568_syscon_bind_of_plat,
+};
+#endif

-- 
2.25.1