arch/powerpc/cpu/mpc8xxx/srio.c

   1 /*
   2  * Copyright 2011 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License as published by the Free
   6  * Software Foundation; either version 2 of the License, or (at your option)
   7  * any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  17  * MA 02111-1307 USA
  18  */
  19
  20 #include <common.h>
  21 #include <config.h>
  22 #include <asm/fsl_law.h>
  23 #include <asm/fsl_serdes.h>
  24 #include <asm/fsl_srio.h>
  25
  26 #define SRIO_PORT_ACCEPT_ALL 0x10000001
  27 #define SRIO_IB_ATMU_AR 0x80f55000
  28
  29 #if defined(CONFIG_FSL_CORENET)
  30         #define _DEVDISR_SRIO1 FSL_CORENET_DEVDISR_SRIO1
  31         #define _DEVDISR_SRIO2 FSL_CORENET_DEVDISR_SRIO2
  32         #define _DEVDISR_RMU   FSL_CORENET_DEVDISR_RMU
  33         #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
  34 #elif defined(CONFIG_MPC85xx)
  35         #define _DEVDISR_SRIO1 MPC85xx_DEVDISR_SRIO
  36         #define _DEVDISR_SRIO2 MPC85xx_DEVDISR_SRIO
  37         #define _DEVDISR_RMU   MPC85xx_DEVDISR_RMSG
  38         #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR
  39 #elif defined(CONFIG_MPC86xx)
  40         #define _DEVDISR_SRIO1 MPC86xx_DEVDISR_SRIO
  41         #define _DEVDISR_SRIO2 MPC86xx_DEVDISR_SRIO
  42         #define _DEVDISR_RMU   MPC86xx_DEVDISR_RMSG
  43         #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \
  44                 (&((immap_t *)CONFIG_SYS_IMMR)->im_gur)
  45 #else
  46 #error "No defines for DEVDISR_SRIO"
  47 #endif
  48
  49 void srio_init(void)
  50 {
  51         ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR;
  52         int srio1_used = 0, srio2_used = 0;
  53
  54         if (is_serdes_configured(SRIO1)) {
  55                 set_next_law(CONFIG_SYS_SRIO1_MEM_PHYS,
  56                                 law_size_bits(CONFIG_SYS_SRIO1_MEM_SIZE),
  57                                 LAW_TRGT_IF_RIO_1);
  58                 srio1_used = 1;
  59                 printf("SRIO1: enabled\n");
  60         } else {
  61                 printf("SRIO1: disabled\n");
  62         }
  63
  64 #ifdef CONFIG_SRIO2
  65         if (is_serdes_configured(SRIO2)) {
  66                 set_next_law(CONFIG_SYS_SRIO2_MEM_PHYS,
  67                                 law_size_bits(CONFIG_SYS_SRIO2_MEM_SIZE),
  68                                 LAW_TRGT_IF_RIO_2);
  69                 srio2_used = 1;
  70                 printf("SRIO2: enabled\n");
  71         } else {
  72                 printf("SRIO2: disabled\n");
  73         }
  74 #endif
  75
  76 #ifdef CONFIG_FSL_CORENET
  77         /* On FSL_CORENET devices we can disable individual ports */
  78         if (!srio1_used)
  79                 setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO1);
  80         if (!srio2_used)
  81                 setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO2);
  82 #endif
  83
  84         /* neither port is used - disable everything */
  85         if (!srio1_used && !srio2_used) {
  86                 setbits_be32(&gur->devdisr, _DEVDISR_SRIO1);
  87                 setbits_be32(&gur->devdisr, _DEVDISR_SRIO2);
  88                 setbits_be32(&gur->devdisr, _DEVDISR_RMU);
  89         }
  90 }
  91
  92 #ifdef CONFIG_SRIOBOOT_MASTER
  93 void srio_boot_master(void)
  94 {
  95         struct ccsr_rio *srio = (void *)CONFIG_SYS_FSL_SRIO_ADDR;
  96
  97         /* set port accept-all */
  98         out_be32((void *)&srio->impl.port[CONFIG_SRIOBOOT_MASTER_PORT].ptaacr,
  99                                 SRIO_PORT_ACCEPT_ALL);
 100
 101         debug("SRIOBOOT - MASTER: Master port [ %d ] for srio boot.\n",
 102                         CONFIG_SRIOBOOT_MASTER_PORT);
 103         /* configure inbound window5 for slave's u-boot image */
 104         debug("SRIOBOOT - MASTER: Inbound window 5 for slave's image; "
 105                         "Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
 106                         (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS1,
 107                         (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS1,
 108                         CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE);
 109         out_be32((void *)&srio->atmu
 110                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwtar,
 111                         CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS1 >> 12);
 112         out_be32((void *)&srio->atmu
 113                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwbar,
 114                         CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS1 >> 12);
 115         out_be32((void *)&srio->atmu
 116                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[0].riwar,
 117                         SRIO_IB_ATMU_AR
 118                         | atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE));
 119
 120         /* configure inbound window4 for slave's u-boot image */
 121         debug("SRIOBOOT - MASTER: Inbound window 4 for slave's image; "
 122                         "Local = 0x%llx, Srio = 0x%llx, Size = 0x%x\n",
 123                         (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS2,
 124                         (u64)CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS2,
 125                         CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE);
 126         out_be32((void *)&srio->atmu
 127                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwtar,
 128                         CONFIG_SRIOBOOT_SLAVE_IMAGE_LAW_PHYS2 >> 12);
 129         out_be32((void *)&srio->atmu
 130                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwbar,
 131                         CONFIG_SRIOBOOT_SLAVE_IMAGE_SRIO_PHYS2 >> 12);
 132         out_be32((void *)&srio->atmu
 133                         .port[CONFIG_SRIOBOOT_MASTER_PORT].inbw[1].riwar,
 134                         SRIO_IB_ATMU_AR
 135                         | atmu_size_mask(CONFIG_SRIOBOOT_SLAVE_IMAGE_SIZE));
 136 }
 137 #endif