LXR uboot/board/renesas/rsk7203/rsk7203.c

   1/*
   2 * Copyright (C) 2008 Nobuhiro Iwamatsu
   3 * Copyright (C) 2008 Renesas Solutions Corp.
   4 *
   5 * u-boot/board/rsk7203/rsk7203.c
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License as
   9 * published by the Free Software Foundation; either version 2 of
  10 * the License, or (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20 * MA 02111-1307 USA
  21 */
  22
  23#include <common.h>
  24#include <asm/io.h>
  25#include <asm/processor.h>
  26
  27int checkboard(void)
  28{
  29        puts("BOARD: Renesas Technology RSK7203\n");
  30        return 0;
  31}
  32
  33int board_init(void)
  34{
  35        return 0;
  36}
  37
  38int dram_init(void)
  39{
  40        DECLARE_GLOBAL_DATA_PTR;
  41
  42        gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  43        gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
  44        printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
  45        return 0;
  46}
  47
  48void led_set_state(unsigned short value)
  49{
  50}
  51
  52/*
  53 * The RSK board has the SMSC9118 wired up 'incorrectly'.
  54 * Byte-swapping is necessary, and so poor performance is inevitable.
  55 * This problem cannot evade by the swap function of CHIP, this can
  56 * evade by software Byte-swapping.
  57 * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
  58 * functions necessary to solve this problem.
  59 */
  60u32 pkt_data_pull(u32 addr)
  61{
  62        volatile u16 *addr_16 = (u16 *)addr;
  63        return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
  64                                | swab16(*(addr_16 + 1));
  65}
  66
  67void pkt_data_push(u32 addr, u32 val)
  68{
  69        *(volatile u16 *)(addr + 2) = swab16((u16)val);
  70        *(volatile u16 *)(addr) = swab16((u16)(val >> 16));
  71}
  72