board/freescale/mpc8568mds/bcsr.c

   1 /*
   2  * Copyright 2007 Freescale Semiconductor.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <common.h>
   8 #include <asm/io.h>
   9
  10 #include "bcsr.h"
  11
  12 void enable_8568mds_duart(void)
  13 {
  14         volatile uint* duart_mux        = (uint *)(CONFIG_SYS_CCSRBAR + 0xe0060);
  15         volatile uint* devices          = (uint *)(CONFIG_SYS_CCSRBAR + 0xe0070);
  16         volatile u8 *bcsr               = (u8 *)(CONFIG_SYS_BCSR);
  17
  18         *duart_mux = 0x80000000;        /* Set the mux to Duart on PMUXCR */
  19         *devices  = 0;                  /* Enable all peripheral devices */
  20         bcsr[5] |= 0x01;                /* Enable Duart in BCSR*/
  21 }
  22
  23 void enable_8568mds_flash_write(void)
  24 {
  25         volatile u8 *bcsr = (u8 *)(CONFIG_SYS_BCSR);
  26
  27         bcsr[9] |= 0x01;
  28 }
  29
  30 void disable_8568mds_flash_write(void)
  31 {
  32         volatile u8 *bcsr = (u8 *)(CONFIG_SYS_BCSR);
  33
  34         bcsr[9] &= ~(0x01);
  35 }
  36
  37 void enable_8568mds_qe_mdio(void)
  38 {
  39         u8 *bcsr = (u8 *)(CONFIG_SYS_BCSR);
  40
  41         bcsr[7] |= 0x01;
  42 }
  43
  44 #if defined(CONFIG_UEC_ETH1) || defined(CONFIG_UEC_ETH2)
  45 void reset_8568mds_uccs(void)
  46 {
  47         volatile u8 *bcsr = (u8 *)(CONFIG_SYS_BCSR);
  48
  49         /* Turn off UCC1 & UCC2 */
  50         out_8(&bcsr[8], in_8(&bcsr[8]) & ~BCSR_UCC1_GETH_EN);
  51         out_8(&bcsr[9], in_8(&bcsr[9]) & ~BCSR_UCC2_GETH_EN);
  52
  53         /* Mode is RGMII, all bits clear */
  54         out_8(&bcsr[11], in_8(&bcsr[11]) & ~(BCSR_UCC1_MODE_MSK |
  55                                              BCSR_UCC2_MODE_MSK));
  56
  57         /* Turn UCC1 & UCC2 on */
  58         out_8(&bcsr[8], in_8(&bcsr[8]) | BCSR_UCC1_GETH_EN);
  59         out_8(&bcsr[9], in_8(&bcsr[9]) | BCSR_UCC2_GETH_EN);
  60 }
  61 #endif