LXR uboot/board/micronas/vct/ebi

   1/*
   2 * (C) Copyright 2008 Stefan Roese <sr@denx.de>, DENX Software Engineering
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <netdev.h>
   9#include <asm/io.h>
  10#include "vct.h"
  11
  12/*
  13 * EBI initialization for SMC911x access
  14 */
  15int ebi_init_smc911x(void)
  16{
  17        reg_write(EBI_DEV1_CONFIG1(EBI_BASE), 0x00003020);
  18        reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
  19
  20        reg_write(EBI_DEV1_TIM1_RD1(EBI_BASE), 0x00501100);
  21        reg_write(EBI_DEV1_TIM1_RD2(EBI_BASE), 0x0FF02111);
  22
  23        reg_write(EBI_DEV1_TIM_EXT(EBI_BASE), 0xFFF00000);
  24        reg_write(EBI_DEV1_EXT_ACC(EBI_BASE), 0x0FFFFFFF);
  25
  26        reg_write(EBI_DEV1_TIM1_WR1(EBI_BASE), 0x05001100);
  27        reg_write(EBI_DEV1_TIM1_WR2(EBI_BASE), 0x3FC21110);
  28
  29        return 0;
  30}
  31
  32/*
  33 * Accessor functions replacing the "weak" functions in
  34 * drivers/net/smc911x.c
  35 */
  36u32 smc911x_reg_read(struct eth_device *dev, u32 addr)
  37{
  38        volatile u32 data;
  39
  40        addr += dev->iobase;
  41        reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
  42        ebi_wait();
  43        reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr));
  44        ebi_wait();
  45        data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE));
  46
  47        return (data);
  48}
  49
  50void smc911x_reg_write(struct eth_device *dev, u32 addr, u32 data)
  51{
  52        addr += dev->iobase;
  53        reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004F);
  54        ebi_wait();
  55        reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data);
  56        reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
  57                  EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr);
  58        ebi_wait();
  59}
  60
  61void pkt_data_push(struct eth_device *dev, u32 addr, u32 data)
  62{
  63        addr += dev->iobase;
  64        reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A);
  65        ebi_wait();
  66        reg_write(EBI_IO_ACCS_DATA(EBI_BASE), data);
  67        reg_write(EBI_CPU_IO_ACCS(EBI_BASE),
  68                  EXT_DEVICE_CHANNEL_1 | EBI_CPU_WRITE | addr);
  69        ebi_wait();
  70
  71        return;
  72}
  73
  74u32 pkt_data_pull(struct eth_device *dev, u32 addr)
  75{
  76        volatile u32 data;
  77
  78        addr += dev->iobase;
  79        reg_write(EBI_DEV1_CONFIG2(EBI_BASE), 0x0000004A);
  80        ebi_wait();
  81        reg_write(EBI_CPU_IO_ACCS(EBI_BASE), (EXT_DEVICE_CHANNEL_1 | addr));
  82        ebi_wait();
  83        data = reg_read(EBI_IO_ACCS_DATA(EBI_BASE));
  84
  85        return data;
  86}
  87
  88int board_eth_init(bd_t *bis)
  89{
  90        int rc = 0;
  91#ifdef CONFIG_SMC911X
  92        rc = smc911x_initialize(0, CONFIG_DRIVER_SMC911X_BASE);
  93#endif
  94        return rc;
  95}
  96