board/micronas/vct/ebi_smc911x.c

   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  */
  15 int 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  */
  36 u32 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
  50 void 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
  61 void 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
  74 u32 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
  88 int 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 }