board/renesas/r0p7734/r0p7734.c

   1 /*
   2  * Copyright (C) 2011 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
   3  * Copyright (C) 2011 Renesas Solutions Corp.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <asm/io.h>
  10 #include <asm/processor.h>
  11 #include <netdev.h>
  12 #include <i2c.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 #define MODEMR                  (0xFFCC0020)
  17 #define MODEMR_MASK             (0x6)
  18 #define MODEMR_533MHZ   (0x2)
  19
  20 int checkboard(void)
  21 {
  22         u32 r = readl(MODEMR);
  23         if ((r & MODEMR_MASK) & MODEMR_533MHZ)
  24                 puts("CPU Clock: 533MHz\n");
  25         else
  26                 puts("CPU Clock: 400MHz\n");
  27
  28         puts("BOARD: Renesas Technology Corp. R0P7734C00000RZ\n");
  29         return 0;
  30 }
  31
  32 #define MSTPSR1                 (0xFFC80044)
  33 #define MSTPCR1                 (0xFFC80034)
  34 #define MSTPSR1_GETHER  (1 << 14)
  35
  36 int board_init(void)
  37 {
  38 #if defined(CONFIG_SH_ETHER)
  39         u32 r = readl(MSTPSR1);
  40         if (r & MSTPSR1_GETHER)
  41                 writel((r & ~MSTPSR1_GETHER), MSTPCR1);
  42 #endif
  43
  44         return 0;
  45 }
  46
  47 int board_late_init(void)
  48 {
  49         u8 mac[6];
  50
  51         /* Read Mac Address and set*/
  52         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
  53         i2c_set_bus_num(CONFIG_SYS_I2C_MODULE);
  54
  55         /* Read MAC address */
  56         i2c_read(0x50, 0x10, 0, mac, 6);
  57
  58         if (is_valid_ether_addr(mac))
  59                 eth_setenv_enetaddr("ethaddr", mac);
  60
  61         return 0;
  62 }
  63
  64 int dram_init(void)
  65 {
  66         gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  67         gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
  68         printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
  69
  70         return 0;
  71 }
  72
  73 #ifdef CONFIG_SMC911X
  74 int board_eth_init(bd_t *bis)
  75 {
  76         int rc = 0;
  77         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
  78         return rc;
  79 }
  80 #endif