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 <asm/io.h>
  11 #include <asm/arch/clock.h>
  12 #include <asm/arch/periph.h>
  13 #include <asm/arch/grf_rk322x.h>
  14 #include <asm/arch/boot_mode.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 #define GRF_BASE        0x11000000
  19
  20 static void setup_boot_mode(void)
  21 {
  22         struct rk322x_grf *const grf = (void *)GRF_BASE;
  23         int boot_mode = readl(&grf->os_reg[4]);
  24
  25         debug("boot mode %x.\n", boot_mode);
  26
  27         /* Clear boot mode */
  28         writel(BOOT_NORMAL, &grf->os_reg[4]);
  29
  30         switch (boot_mode) {
  31         case BOOT_FASTBOOT:
  32                 printf("enter fastboot!\n");
  33                 setenv("preboot", "setenv preboot; fastboot usb0");
  34                 break;
  35         case BOOT_UMS:
  36                 printf("enter UMS!\n");
  37                 setenv("preboot", "setenv preboot; ums mmc 0");
  38                 break;
  39         }
  40 }
  41
  42 __weak int rk_board_late_init(void)
  43 {
  44         return 0;
  45 }
  46
  47 int board_late_init(void)
  48 {
  49         setup_boot_mode();
  50
  51         return rk_board_late_init();
  52 }
  53
  54 int board_init(void)
  55 {
  56 #include <asm/arch/grf_rk322x.h>
  57         /* Enable early UART2 channel 1 on the RK322x */
  58 #define GRF_BASE        0x11000000
  59         struct rk322x_grf * const grf = (void *)GRF_BASE;
  60
  61         rk_clrsetreg(&grf->gpio1b_iomux,
  62                      GPIO1B1_MASK | GPIO1B2_MASK,
  63                      GPIO1B2_UART21_SIN << GPIO1B2_SHIFT |
  64                      GPIO1B1_UART21_SOUT << GPIO1B1_SHIFT);
  65         /* Set channel C as UART2 input */
  66         rk_clrsetreg(&grf->con_iomux,
  67                      CON_IOMUX_UART2SEL_MASK,
  68                      CON_IOMUX_UART2SEL_21 << CON_IOMUX_UART2SEL_SHIFT);
  69
  70         return 0;
  71 }
  72
  73 int dram_init_banksize(void)
  74 {
  75         /* Reserve 0x200000 for OPTEE */
  76         gd->bd->bi_dram[0].start = 0x60000000;
  77         gd->bd->bi_dram[0].size = 0x8400000;
  78         gd->bd->bi_dram[1].start = 0x6a400000;
  79         gd->bd->bi_dram[1].size = gd->ram_size - gd->bd->bi_dram[1].start;
  80
  81         return 0;
  82 }
  83
  84 #ifndef CONFIG_SYS_DCACHE_OFF
  85 void enable_caches(void)
  86 {
  87         /* Enable D-cache. I-cache is already enabled in start.S */
  88         dcache_enable();
  89 }
  90 #endif
  91
  92 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
  93 #include <usb.h>
  94 #include <usb/dwc2_udc.h>
  95
  96 static struct dwc2_plat_otg_data rk322x_otg_data = {
  97         .rx_fifo_sz     = 512,
  98         .np_tx_fifo_sz  = 16,
  99         .tx_fifo_sz     = 128,
 100 };
 101
 102 int board_usb_init(int index, enum usb_init_type init)
 103 {
 104         int node;
 105         const char *mode;
 106         bool matched = false;
 107         const void *blob = gd->fdt_blob;
 108
 109         /* find the usb_otg node */
 110         node = fdt_node_offset_by_compatible(blob, -1,
 111                                         "rockchip,rk3288-usb");
 112
 113         while (node > 0) {
 114                 mode = fdt_getprop(blob, node, "dr_mode", NULL);
 115                 if (mode && strcmp(mode, "otg") == 0) {
 116                         matched = true;
 117                         break;
 118                 }
 119
 120                 node = fdt_node_offset_by_compatible(blob, node,
 121                                         "rockchip,rk3288-usb");
 122         }
 123         if (!matched) {
 124                 debug("Not found usb_otg device\n");
 125                 return -ENODEV;
 126         }
 127         rk322x_otg_data.regs_otg = fdtdec_get_addr(blob, node, "reg");
 128
 129         return dwc2_udc_probe(&rk322x_otg_data);
 130 }
 131
 132 int board_usb_cleanup(int index, enum usb_init_type init)
 133 {
 134         return 0;
 135 }
 136 #endif