board/renesas/rsk7269/rsk7269.c

   1 /*
   2  * Copyright (C) 2012 Renesas Electronics Europe Ltd.
   3  * Copyright (C) 2012 Phil Edworthy
   4  * Copyright (C) 2008 Renesas Solutions Corp.
   5  * Copyright (C) 2008 Nobuhiro Iwamatsu
   6  *
   7  * Based on u-boot/board/rsk7264/rsk7264.c
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include <common.h>
  13 #include <net.h>
  14 #include <netdev.h>
  15 #include <asm/io.h>
  16 #include <asm/processor.h>
  17
  18 int checkboard(void)
  19 {
  20         puts("BOARD: Renesas RSK7269\n");
  21         return 0;
  22 }
  23
  24 int board_init(void)
  25 {
  26         return 0;
  27 }
  28
  29 void led_set_state(unsigned short value)
  30 {
  31 }
  32
  33 /*
  34  * The RSK board has the SMSC89218 wired up 'incorrectly'.
  35  * Byte-swapping is necessary, and so poor performance is inevitable.
  36  * This problem cannot evade by the swap function of CHIP, this can
  37  * evade by software Byte-swapping.
  38  * And this has problem by FIFO access only. pkt_data_pull/pkt_data_push
  39  * functions necessary to solve this problem.
  40  */
  41 u32 pkt_data_pull(struct eth_device *dev, u32 addr)
  42 {
  43         volatile u16 *addr_16 = (u16 *)(dev->iobase + addr);
  44         return (u32)((swab16(*addr_16) << 16) & 0xFFFF0000)\
  45                                 | swab16(*(addr_16 + 1));
  46 }
  47
  48 void pkt_data_push(struct eth_device *dev, u32 addr, u32 val)
  49 {
  50         addr += dev->iobase;
  51         *(volatile u16 *)(addr + 2) = swab16((u16)val);
  52         *(volatile u16 *)(addr) = swab16((u16)(val >> 16));
  53 }
  54
  55 int board_eth_init(bd_t *bis)
  56 {
  57         int rc = 0;
  58 #ifdef CONFIG_SMC911X
  59         rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
  60 #endif
  61         return rc;
  62 }