mirror of
https://github.com/AsahiLinux/u-boot
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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
/*
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* Copyright (C) 2008 Nobuhiro Iwamatsu
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* Copyright (C) 2008 Renesas Solutions Corp.
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*
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* u-boot/board/rsk7203/rsk7203.c
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/processor.h>
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int checkboard(void)
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{
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puts("BOARD: Renesas Technology RSK7203\n");
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return 0;
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}
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int board_init(void)
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{
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return 0;
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}
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int dram_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
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printf("DRAM: %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
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return 0;
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}
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void led_set_state(unsigned short value)
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{
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}
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/*
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* The RSK board has the SMSC9118 wired up 'incorrectly'.
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* Byte-swapping is necessary, and so poor performance is inevitable.
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* This problem cannot evade by the swap function of CHIP, this can
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* evade by software Byte-swapping.
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* And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
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* functions necessary to solve this problem.
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*/
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u32 pkt_data_pull(u32 addr)
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{
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volatile u16 *addr_16 = (u16 *)addr;
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return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
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| swab16(*(addr_16 + 1));
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}
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void pkt_data_push(u32 addr, u32 val)
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{
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*(volatile u16 *)(addr + 2) = swab16((u16)val);
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*(volatile u16 *)(addr) = swab16((u16)(val >> 16));
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}
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