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  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 #include <common.h>
  11 #include <net.h>
  12 #include <netdev.h>
  13 #include <asm/io.h>
  14 #include <asm/processor.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 int checkboard(void)
  19 {
  20         puts("BOARD: Renesas Technology RSK7203\n");
  21         return 0;
  22 }
  23
  24 int board_init(void)
  25 {
  26         return 0;
  27 }
  28
  29 int dram_init(void)
  30 {
  31         gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
  32         gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
  33         printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
  34         return 0;
  35 }
  36
  37 void led_set_state(unsigned short value)
  38 {
  39 }
  40
  41 /*
  42  * The RSK board has the SMSC9118 wired up 'incorrectly'.
  43  * Byte-swapping is necessary, and so poor performance is inevitable.
  44  * This problem cannot evade by the swap function of CHIP, this can
  45  * evade by software Byte-swapping.
  46  * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
  47  * functions necessary to solve this problem.
  48  */
  49 u32 pkt_data_pull(struct eth_device *dev, u32 addr)
  50 {
  51         volatile u16 *addr_16 = (u16 *)(dev->iobase + addr);
  52         return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
  53                                 | swab16(*(addr_16 + 1));
  54 }
  55
  56 void pkt_data_push(struct eth_device *dev, u32 addr, u32 val)
  57 {
  58         addr += dev->iobase;
  59         *(volatile u16 *)(addr + 2) = swab16((u16)val);
  60         *(volatile u16 *)(addr) = swab16((u16)(val >> 16));
  61 }
  62
  63 int board_eth_init(bd_t *bis)
  64 {
  65         int rc = 0;
  66 #ifdef CONFIG_SMC911X
  67         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
  68 #endif
  69         return rc;
  70 }