arm: socfpga: misc: Add CONFIG_SYS_L2_PL310 switch
[oweals/u-boot.git] / arch / arm / mach-rockchip / rk3288-board.c
index 74c6cc14a140e51b9cd78fe61c9754485b27b9c3..8c128d4f94d0bc7bcde0c110aa9a2f4e6242a285 100644 (file)
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015 Google, Inc
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
@@ -11,6 +10,7 @@
 #include <syscon.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/cru_rk3288.h>
 #include <asm/arch/periph.h>
 #include <asm/arch/pmu_rk3288.h>
 #include <asm/arch/qos_rk3288.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#define PMU_BASE       0xff730000
-
-static void setup_boot_mode(void)
-{
-       struct rk3288_pmu *const pmu = (void *)PMU_BASE;
-       int boot_mode = readl(&pmu->sys_reg[0]);
-
-       debug("boot mode %x.\n", boot_mode);
-
-       /* Clear boot mode */
-       writel(BOOT_NORMAL, &pmu->sys_reg[0]);
-
-       switch (boot_mode) {
-       case BOOT_FASTBOOT:
-               printf("enter fastboot!\n");
-               env_set("preboot", "setenv preboot; fastboot usb0");
-               break;
-       case BOOT_UMS:
-               printf("enter UMS!\n");
-               env_set("preboot", "setenv preboot; if mmc dev 0;"
-                      "then ums mmc 0; else ums mmc 1;fi");
-               break;
-       }
-}
-
 __weak int rk_board_late_init(void)
 {
        return 0;
@@ -70,10 +45,48 @@ int rk3288_qos_init(void)
        return 0;
 }
 
+static void rk3288_detect_reset_reason(void)
+{
+       struct rk3288_cru *cru = rockchip_get_cru();
+       const char *reason;
+
+       if (IS_ERR(cru))
+               return;
+
+       switch (cru->cru_glb_rst_st) {
+       case GLB_POR_RST:
+               reason = "POR";
+               break;
+       case FST_GLB_RST_ST:
+       case SND_GLB_RST_ST:
+               reason = "RST";
+               break;
+       case FST_GLB_TSADC_RST_ST:
+       case SND_GLB_TSADC_RST_ST:
+               reason = "THERMAL";
+               break;
+       case FST_GLB_WDT_RST_ST:
+       case SND_GLB_WDT_RST_ST:
+               reason = "WDOG";
+               break;
+       default:
+               reason = "unknown reset";
+       }
+
+       env_set("reset_reason", reason);
+
+       /*
+        * Clear cru_glb_rst_st, so we can determine the last reset cause
+        * for following resets.
+        */
+       rk_clrreg(&cru->cru_glb_rst_st, GLB_RST_ST_MASK);
+}
+
 int board_late_init(void)
 {
        setup_boot_mode();
        rk3288_qos_init();
+       rk3288_detect_reset_reason();
 
        return rk_board_late_init();
 }