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 int checkboard(void)
  17 {
  18         puts("BOARD: Renesas Technology RSK7203\n");
  19         return 0;
  20 }
  21
  22 int board_init(void)
  23 {
  24         return 0;
  25 }
  26
  27 void led_set_state(unsigned short value)
  28 {
  29 }
  30
  31 /*
  32  * The RSK board has the SMSC9118 wired up 'incorrectly'.
  33  * Byte-swapping is necessary, and so poor performance is inevitable.
  34  * This problem cannot evade by the swap function of CHIP, this can
  35  * evade by software Byte-swapping.
  36  * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
  37  * functions necessary to solve this problem.
  38  */
  39 u32 pkt_data_pull(struct eth_device *dev, u32 addr)
  40 {
  41         volatile u16 *addr_16 = (u16 *)(dev->iobase + addr);
  42         return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
  43                                 | swab16(*(addr_16 + 1));
  44 }
  45
  46 void pkt_data_push(struct eth_device *dev, u32 addr, u32 val)
  47 {
  48         addr += dev->iobase;
  49         *(volatile u16 *)(addr + 2) = swab16((u16)val);
  50         *(volatile u16 *)(addr) = swab16((u16)(val >> 16));
  51 }
  52
  53 int board_eth_init(bd_t *bis)
  54 {
  55         int rc = 0;
  56 #ifdef CONFIG_SMC911X
  57         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
  58 #endif
  59         return rc;
  60 }