[PATCH v2 2/2] rockchip: rk3288: Add OF board setup

[Jagan Teki <jagan@amarulasolutions.com>]

The new rk3288 revision rk3288w has some changes with respect
to legacy rk3288 like hclk_vio in cru and usb host0 ohci.

Linux clock driver already handle this via rockchip,rk3288w-cru
compatible.

USB ohci host can enable via dts for rk3288w based boards.

So, add fdt board setup code to update cru compatible with
rk3288w-cru compatible if the SOC revision is RK3288W.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
Changes for v2:
- use soc detection helper
- add cru compatible change for rk3288w

 arch/arm/mach-rockchip/Kconfig         |  1 +
 arch/arm/mach-rockchip/rk3288/rk3288.c | 33 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index b1008a5058..822d8d4e9c 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -98,6 +98,7 @@ config ROCKCHIP_RK322X
 config ROCKCHIP_RK3288
 	bool "Support Rockchip RK3288"
 	select CPU_V7A
+	select OF_BOARD_SETUP
 	select SUPPORT_SPL
 	select SPL
 	select SUPPORT_TPL
diff --git a/arch/arm/mach-rockchip/rk3288/rk3288.c b/arch/arm/mach-rockchip/rk3288/rk3288.c
index 804abe8a1b..9c873d2b6a 100644
--- a/arch/arm/mach-rockchip/rk3288/rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288/rk3288.c
@@ -13,6 +13,7 @@
 #include <asm/io.h>
 #include <asm/arch-rockchip/bootrom.h>
 #include <asm/arch-rockchip/clock.h>
+#include <asm/arch-rockchip/cpu.h>
 #include <asm/arch-rockchip/cru.h>
 #include <asm/arch-rockchip/hardware.h>
 #include <asm/arch-rockchip/grf_rk3288.h>
@@ -115,6 +116,38 @@ int rk_board_late_init(void)
 	return rk3288_board_late_init();
 }
 
+#if defined(CONFIG_OF_BOARD_SETUP)
+
+static int ft_rk3288w_setup(void *blob)
+{
+	const char *path;
+	int offs, ret;
+
+	path = "/clock-controller at ff760000";
+	offs = fdt_path_offset(blob, path);
+	if (offs < 0) {
+		debug("failed to found fdt path %s\n", path);
+		return offs;
+	}
+
+	ret = fdt_setprop_string(blob, offs, "compatible", "rockchip,rk3288w-cru");
+	if (ret) {
+		printf("failed to set rk3288w-cru compatible (ret=%d)\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	if (soc_is_rk3288w())
+		return ft_rk3288w_setup(blob);
+
+	return 0;
+}
+#endif
+
 static int do_clock(struct cmd_tbl *cmdtp, int flag, int argc,
 		    char *const argv[])
 {
-- 
2.25.1