Merge branch 'master' of git://git.denx.de/u-boot

[u-boot] / arch / arm / mach-rockchip / rk3288 / sdram_rk3288.c

diff --git a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
index 074cf518709cd8560febe43bb86d640e30ef32aa..2e212823352e94dc6db61b958dc05238e42471e9 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
+++ b/arch/arm/mach-rockchip/rk3288/sdram_rk3288.c
@@ -22,6 +22,8 @@
 #include <asm/arch/pmu_rk3288.h>
 #include <asm/arch/sdram.h>
 #include <linux/err.h>
+#include <power/regulator.h>
+#include <power/rk808_pmic.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -748,6 +750,32 @@ size_t sdram_size_mb(struct rk3288_pmu *pmu)
 }
 
 #ifdef CONFIG_SPL_BUILD
+# ifdef CONFIG_ROCKCHIP_FAST_SPL
+static int veyron_init(struct dram_info *priv)
+{
+       struct udevice *pmic;
+       int ret;
+
+       ret = uclass_first_device_err(UCLASS_PMIC, &pmic);
+       if (ret)
+               return ret;
+
+       /* Slowly raise to max CPU voltage to prevent overshoot */
+       ret = rk808_spl_configure_buck(pmic, 1, 1200000);
+       if (ret)
+               return ret;
+       udelay(175);/* Must wait for voltage to stabilize, 2mV/us */
+       ret = rk808_spl_configure_buck(pmic, 1, 1400000);
+       if (ret)
+               return ret;
+       udelay(100);/* Must wait for voltage to stabilize, 2mV/us */
+
+       rkclk_configure_cpu(priv->cru, priv->grf);
+
+       return 0;
+}
+# endif
+
 static int setup_sdram(struct udevice *dev)
 {
        struct dram_info *priv = dev_get_priv(dev);
@@ -791,6 +819,14 @@ static int setup_sdram(struct udevice *dev)
                return -EINVAL;
        }
 
+# ifdef CONFIG_ROCKCHIP_FAST_SPL
+       if (!fdt_node_check_compatible(blob, 0, "google,veyron")) {
+               ret = veyron_init(priv);
+               if (ret)
+                       return ret;
+       }
+# endif
+
        return sdram_init(priv, &params);
 }
 #endif