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 __weak int rk_board_late_init(void)
  20 {
  21         return 0;
  22 }
  23
  24 int board_late_init(void)
  25 {
  26         setup_boot_mode();
  27
  28         return rk_board_late_init();
  29 }
  30
  31 int board_init(void)
  32 {
  33 #include <asm/arch/grf_rk322x.h>
  34         /* Enable early UART2 channel 1 on the RK322x */
  35 #define GRF_BASE        0x11000000
  36         struct rk322x_grf * const grf = (void *)GRF_BASE;
  37         enum {
  38                 GPIO1B2_SHIFT           = 4,
  39                 GPIO1B2_MASK            = 3 << GPIO1B2_SHIFT,
  40                 GPIO1B2_GPIO            = 0,
  41                 GPIO1B2_UART21_SIN,
  42
  43                 GPIO1B1_SHIFT           = 2,
  44                 GPIO1B1_MASK            = 3 << GPIO1B1_SHIFT,
  45                 GPIO1B1_GPIO            = 0,
  46                 GPIO1B1_UART1_SOUT,
  47                 GPIO1B1_UART21_SOUT,
  48         };
  49         enum {
  50                 CON_IOMUX_UART2SEL_SHIFT= 8,
  51                 CON_IOMUX_UART2SEL_MASK = 1 << CON_IOMUX_UART2SEL_SHIFT,
  52                 CON_IOMUX_UART2SEL_2    = 0,
  53                 CON_IOMUX_UART2SEL_21,
  54         };
  55
  56         rk_clrsetreg(&grf->gpio1b_iomux,
  57                      GPIO1B1_MASK | GPIO1B2_MASK,
  58                      GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
  59                      GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
  60         /* Set channel C as UART2 input */
  61         rk_clrsetreg(&grf->con_iomux,
  62                      CON_IOMUX_UART2SEL_MASK,
  63                      CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
  64
  65         /*
  66         * The integrated macphy is enabled by default, disable it
  67         * for saving power consuming.
  68         */
  69         rk_clrsetreg(&grf->macphy_con[0],
  70                      MACPHY_CFG_ENABLE_MASK,
  71                      0 << MACPHY_CFG_ENABLE_SHIFT);
  72
  73         return 0;
  74 }
  75
  76 int dram_init_banksize(void)
  77 {
  78         gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
  79         gd->bd->bi_dram[0].size = 0x8400000;
  80         /* Reserve 0x200000 for OPTEE */
  81         gd->bd->bi_dram[1].start = CONFIG_SYS_SDRAM_BASE
  82                                 + gd->bd->bi_dram[0].size + 0x200000;
  83         gd->bd->bi_dram[1].size = gd->bd->bi_dram[0].start
  84                                 + gd->ram_size - gd->bd->bi_dram[1].start;
  85
  86         return 0;
  87 }
  88
  89 #ifndef CONFIG_SYS_DCACHE_OFF
  90 void enable_caches(void)
  91 {
  92         /* Enable D-cache. I-cache is already enabled in start.S */
  93         dcache_enable();
  94 }
  95 #endif
  96
  97 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
  98 #include <usb.h>
  99 #include <usb/dwc2_udc.h>
 100
 101 static struct dwc2_plat_otg_data rk322x_otg_data = {
 102         .rx_fifo_sz     = 512,
 103         .np_tx_fifo_sz  = 16,
 104         .tx_fifo_sz     = 128,
 105 };
 106
 107 int board_usb_init(int index, enum usb_init_type init)
 108 {
 109         int node;
 110         const char *mode;
 111         bool matched = false;
 112         const void *blob = gd->fdt_blob;
 113
 114         /* find the usb_otg node */
 115         node = fdt_node_offset_by_compatible(blob, -1,
 116                                         "rockchip,rk3288-usb");
 117
 118         while (node > 0) {
 119                 mode = fdt_getprop(blob, node, "dr_mode", NULL);
 120                 if (mode && strcmp(mode, "otg") == 0) {
 121                         matched = true;
 122                         break;
 123                 }
 124
 125                 node = fdt_node_offset_by_compatible(blob, node,
 126                                         "rockchip,rk3288-usb");
 127         }
 128         if (!matched) {
 129                 debug("Not found usb_otg device\n");
 130                 return -ENODEV;
 131         }
 132         rk322x_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
 133
 134         return dwc2_udc_probe(&rk322x_otg_data);
 135 }
 136
 137 int board_usb_cleanup(int index, enum usb_init_type init)
 138 {
 139         return 0;
 140 }
 141 #endif
 142
 143 #if defined(CONFIG_USB_FUNCTION_FASTBOOT)
 144 int fb_set_reboot_flag(void)
 145 {
 146         struct rk322x_grf *grf;
 147
 148         printf("Setting reboot to fastboot flag ...\n");
 149         grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
 150         /* Set boot mode to fastboot */
 151         writel(BOOT_FASTBOOT, &grf->os_reg[0]);
 152
 153         return 0;
 154 }
 155 #endif