arch/arm/mach-rockchip/rk322x-board.c

   1 /*
   2  * (C) Copyright 2017 Rockchip Electronics Co., Ltd.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <common.h>
   7 #include <clk.h>
   8 #include <dm.h>
   9 #include <ram.h>
  10 #include <syscon.h>
  11 #include <asm/io.h>
  12 #include <asm/arch/clock.h>
  13 #include <asm/arch/periph.h>
  14 #include <asm/arch/grf_rk322x.h>
  15 #include <asm/arch/boot_mode.h>
  16
  17 DECLARE_GLOBAL_DATA_PTR;
  18
  19 #define GRF_BASE        0x11000000
  20
  21 static void setup_boot_mode(void)
  22 {
  23         struct rk322x_grf *const grf = (void *)GRF_BASE;
  24         int boot_mode = readl(&grf->os_reg[0]);
  25
  26         debug("boot mode %x.\n", boot_mode);
  27
  28         /* Clear boot mode */
  29         writel(BOOT_NORMAL, &grf->os_reg[0]);
  30
  31         switch (boot_mode) {
  32         case BOOT_FASTBOOT:
  33                 printf("enter fastboot!\n");
  34                 env_set("preboot", "setenv preboot; fastboot usb0");
  35                 break;
  36         case BOOT_UMS:
  37                 printf("enter UMS!\n");
  38                 env_set("preboot", "setenv preboot; ums mmc 0");
  39                 break;
  40         }
  41 }
  42
  43 __weak int rk_board_late_init(void)
  44 {
  45         return 0;
  46 }
  47
  48 int board_late_init(void)
  49 {
  50         setup_boot_mode();
  51
  52         return rk_board_late_init();
  53 }
  54
  55 int board_init(void)
  56 {
  57 #include <asm/arch/grf_rk322x.h>
  58         /* Enable early UART2 channel 1 on the RK322x */
  59 #define GRF_BASE        0x11000000
  60         struct rk322x_grf * const grf = (void *)GRF_BASE;
  61
  62         rk_clrsetreg(&grf->gpio1b_iomux,
  63                      GPIO1B1_MASK | GPIO1B2_MASK,
  64                      GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
  65                      GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
  66         /* Set channel C as UART2 input */
  67         rk_clrsetreg(&grf->con_iomux,
  68                      CON_IOMUX_UART2SEL_MASK,
  69                      CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
  70
  71         /*
  72         * The integrated macphy is enabled by default, disable it
  73         * for saving power consuming.
  74         */
  75         rk_clrsetreg(&grf->macphy_con[0],
  76                      MACPHY_CFG_ENABLE_MASK,
  77                      0 << MACPHY_CFG_ENABLE_SHIFT);
  78
  79         return 0;
  80 }
  81
  82 int dram_init_banksize(void)
  83 {
  84         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
  85         gd->bd->bi_dram[0].size = 0x8400000;
  86         /* Reserve 0x200000 for OPTEE */
  87         gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE
  88                                 + gd->bd->bi_dram[0].size + 0x200000;
  89         gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
  90                                 + gd->ram_size - gd->bd->bi_dram[1].start;
  91
  92         return 0;
  93 }
  94
  95 #ifndef CONFIG_SYS_DCACHE_OFF
  96 void enable_caches(void)
  97 {
  98         /* Enable D-cache. I-cache is already enabled in start.S */
  99         dcache_enable();
 100 }
 101 #endif
 102
 103 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
 104 #include <usb.h>
 105 #include <usb/dwc2_udc.h>
 106
 107 static struct dwc2_plat_otg_data rk322x_otg_data = {
 108         .rx_fifo_sz     = 512,
 109         .np_tx_fifo_sz  = 16,
 110         .tx_fifo_sz     = 128,
 111 };
 112
 113 int board_usb_init(int index, enum usb_init_type init)
 114 {
 115         int node;
 116         const char *mode;
 117         bool matched = false;
 118         const void *blob = gd->fdt_blob;
 119
 120         /* find the usb_otg node */
 121         node = fdt_node_offset_by_compatible(blob, -1,
 122                                         "rockchip,rk3288-usb");
 123
 124         while (node > 0) {
 125                 mode = fdt_getprop(blob, node, "dr_mode", NULL);
 126                 if (mode && strcmp(mode, "otg") == 0) {
 127                         matched = true;
 128                         break;
 129                 }
 130
 131                 node = fdt_node_offset_by_compatible(blob, node,
 132                                         "rockchip,rk3288-usb");
 133         }
 134         if (!matched) {
 135                 debug("Not found usb_otg device\n");
 136                 return -ENODEV;
 137         }
 138         rk322x_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
 139
 140         return dwc2_udc_probe(&rk322x_otg_data);
 141 }
 142
 143 int board_usb_cleanup(int index, enum usb_init_type init)
 144 {
 145         return 0;
 146 }
 147 #endif
 148
 149 #if defined(CONFIG_USB_FUNCTION_FASTBOOT)
 150 int fb_set_reboot_flag(void)
 151 {
 152         struct rk322x_grf *grf;
 153
 154         printf("Setting reboot to fastboot flag ...\n");
 155         grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
 156         /* Set boot mode to fastboot */
 157         writel(BOOT_FASTBOOT, &grf->os_reg[0]);
 158
 159         return 0;
 160 }
 161 #endif