board/sheldon/simpc8313/simpc8313.c

   1 /*
   2  * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
   3  * Copyright (C) Sheldon Instruments, Inc. 2008
   4  *
   5  * Author: Ron Madrid <info@sheldoninst.com>
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <libfdt.h>
  28 #include <pci.h>
  29 #include <mpc83xx.h>
  30 #include <ns16550.h>
  31 #include <nand.h>
  32
  33 DECLARE_GLOBAL_DATA_PTR;
  34
  35 int checkboard(void)
  36 {
  37         puts("Board: Sheldon Instruments SIMPC8313\n");
  38         return 0;
  39 }
  40
  41 #ifndef CONFIG_NAND_SPL
  42 static struct pci_region pci_regions[] = {
  43         {
  44                 bus_start: CONFIG_SYS_PCI1_MEM_BASE,
  45                 phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
  46                 size: CONFIG_SYS_PCI1_MEM_SIZE,
  47                 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
  48         },
  49         {
  50                 bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
  51                 phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
  52                 size: CONFIG_SYS_PCI1_MMIO_SIZE,
  53                 flags: PCI_REGION_MEM
  54         },
  55         {
  56                 bus_start: CONFIG_SYS_PCI1_IO_BASE,
  57                 phys_start: CONFIG_SYS_PCI1_IO_PHYS,
  58                 size: CONFIG_SYS_PCI1_IO_SIZE,
  59                 flags: PCI_REGION_IO
  60         }
  61 };
  62
  63 void pci_init_board(void)
  64 {
  65         volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
  66         volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
  67         volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
  68         struct pci_region *reg[] = { pci_regions };
  69         int warmboot;
  70
  71         /* Enable all 3 PCI_CLK_OUTPUTs. */
  72         clk->occr |= 0xe0000000;
  73
  74         /*
  75          * Configure PCI Local Access Windows
  76          */
  77         pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
  78         pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
  79
  80         pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
  81         pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
  82
  83         warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
  84
  85         mpc83xx_pci_init(1, reg, warmboot);
  86 }
  87
  88 /*
  89  * Miscellaneous late-boot configurations
  90  */
  91 int misc_init_r(void)
  92 {
  93         int rc = 0;
  94
  95         return rc;
  96 }
  97
  98 #if defined(CONFIG_OF_BOARD_SETUP)
  99 void ft_board_setup(void *blob, bd_t *bd)
 100 {
 101         ft_cpu_setup(blob, bd);
 102 #ifdef CONFIG_PCI
 103         ft_pci_setup(blob, bd);
 104 #endif
 105 }
 106 #endif
 107 #else /* CONFIG_NAND_SPL */
 108 void board_init_f(ulong bootflag)
 109 {
 110         NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
 111                                 CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
 112         puts("NAND boot... ");
 113         init_timebase();
 114         initdram(0);
 115         relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, (gd_t *)gd,
 116                                   CONFIG_SYS_NAND_U_BOOT_RELOC);
 117 }
 118
 119 void board_init_r(gd_t *gd, ulong dest_addr)
 120 {
 121         nand_boot();
 122 }
 123
 124 void putc(char c)
 125 {
 126         if (gd->flags & GD_FLG_SILENT)
 127                 return;
 128
 129         if (c == '\n')
 130                 NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
 131
 132         NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
 133 }
 134 #endif