board/micronas/vct/ebi_smc911x.c

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