board/elgin/elgin_rv1108/elgin_rv1108.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C)Copyright 2016 Rockchip Electronics Co., Ltd
   4  * Authors: Andy Yan <andy.yan@rock-chips.com>
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9 #include <fdtdec.h>
  10 #include <asm/arch-rockchip/grf_rv1108.h>
  11 #include <asm/arch-rockchip/hardware.h>
  12 #include <asm/gpio.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 int mach_cpu_init(void)
  17 {
  18         int node;
  19         struct rv1108_grf *grf;
  20         enum {
  21                 GPIO3C3_SHIFT           = 6,
  22                 GPIO3C3_MASK            = 3 << GPIO3C3_SHIFT,
  23
  24                 GPIO3C2_SHIFT           = 4,
  25                 GPIO3C2_MASK            = 3 << GPIO3C2_SHIFT,
  26
  27                 GPIO2D2_SHIFT           = 4,
  28                 GPIO2D2_MASK            = 3 << GPIO2D2_SHIFT,
  29                 GPIO2D2_GPIO            = 0,
  30                 GPIO2D2_UART2_SOUT_M0,
  31
  32                 GPIO2D1_SHIFT           = 2,
  33                 GPIO2D1_MASK            = 3 << GPIO2D1_SHIFT,
  34                 GPIO2D1_GPIO            = 0,
  35                 GPIO2D1_UART2_SIN_M0,
  36         };
  37
  38         node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "rockchip,rv1108-grf");
  39         grf = (struct rv1108_grf *)fdtdec_get_addr(gd->fdt_blob, node, "reg");
  40
  41         /* Elgin board use UART2 m0 for debug*/
  42         rk_clrsetreg(&grf->gpio2d_iomux,
  43                      GPIO2D2_MASK | GPIO2D1_MASK,
  44                      GPIO2D2_UART2_SOUT_M0 << GPIO2D2_SHIFT |
  45                      GPIO2D1_UART2_SIN_M0 << GPIO2D1_SHIFT);
  46         rk_clrreg(&grf->gpio3c_iomux, GPIO3C3_MASK | GPIO3C2_MASK);
  47
  48         return 0;
  49 }
  50
  51 #define MODEM_ENABLE_GPIO 111
  52
  53 int board_init(void)
  54 {
  55         gpio_request(MODEM_ENABLE_GPIO, "modem_enable");
  56         gpio_direction_output(MODEM_ENABLE_GPIO, 0);
  57
  58         return 0;
  59 }
  60
  61 int dram_init(void)
  62 {
  63         gd->ram_size = 0x8000000;
  64
  65         return 0;
  66 }
  67
  68 int dram_init_banksize(void)
  69 {
  70         gd->bd->bi_dram[0].start = 0x60000000;
  71         gd->bd->bi_dram[0].size = 0x8000000;
  72
  73         return 0;
  74 }