arch/arm/mach-rockchip/rk3188-board.c

   1 /*
   2  * (C) Copyright 2015 Google, Inc
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <clk.h>
   9 #include <dm.h>
  10 #include <ram.h>
  11 #include <syscon.h>
  12 #include <asm/io.h>
  13 #include <asm/arch/clock.h>
  14 #include <asm/arch/grf_rk3188.h>
  15 #include <asm/arch/periph.h>
  16 #include <asm/arch/pmu_rk3288.h>
  17 #include <asm/arch/boot_mode.h>
  18 #include <asm/gpio.h>
  19 #include <dm/pinctrl.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 int board_late_init(void)
  24 {
  25         struct rk3188_grf *grf;
  26
  27         grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
  28         if (IS_ERR(grf)) {
  29                 error("grf syscon returned %ld\n", PTR_ERR(grf));
  30         } else {
  31                 /* enable noc remap to mimic legacy loaders */
  32                 rk_clrsetreg(&grf->soc_con0,
  33                         NOC_REMAP_MASK << NOC_REMAP_SHIFT,
  34                         NOC_REMAP_MASK << NOC_REMAP_SHIFT);
  35         }
  36
  37         return 0;
  38 }
  39
  40 int board_init(void)
  41 {
  42 #if CONFIG_IS_ENABLED(ROCKCHIP_BACK_TO_BROM)
  43         struct udevice *pinctrl;
  44         int ret;
  45
  46         /*
  47          * We need to implement sdcard iomux here for the further
  48          * initialization, otherwise, it'll hit sdcard command sending
  49          * timeout exception.
  50          */
  51         ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
  52         if (ret) {
  53                 debug("%s: Cannot find pinctrl device\n", __func__);
  54                 goto err;
  55         }
  56         ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_SDCARD);
  57         if (ret) {
  58                 debug("%s: Failed to set up SD card\n", __func__);
  59                 goto err;
  60         }
  61
  62         return 0;
  63 err:
  64         printf("board_init: Error %d\n", ret);
  65
  66         /* No way to report error here */
  67         hang();
  68
  69         return -1;
  70 #else
  71         return 0;
  72 #endif
  73 }
  74
  75 #ifndef CONFIG_SYS_DCACHE_OFF
  76 void enable_caches(void)
  77 {
  78         /* Enable D-cache. I-cache is already enabled in start.S */
  79         dcache_enable();
  80 }
  81 #endif