Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 Freescale Semiconductor, Inc. |
| 3 | * |
| 4 | * Author: Scott Wood <scottwood@freescale.com> |
| 5 | * Dave Liu <daveliu@freescale.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 <i2c.h> |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 28 | #include <libfdt.h> |
Anton Vorontsov | 25f5f0d | 2008-07-08 21:00:04 +0400 | [diff] [blame] | 29 | #include <fdt_support.h> |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 30 | #include <pci.h> |
| 31 | #include <mpc83xx.h> |
Ben Warren | 10efa02 | 2008-08-31 20:37:00 -0700 | [diff] [blame] | 32 | #include <netdev.h> |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 33 | #include <asm/io.h> |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 34 | |
| 35 | DECLARE_GLOBAL_DATA_PTR; |
| 36 | |
| 37 | int board_early_init_f(void) |
| 38 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 39 | volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 40 | |
| 41 | if (im->pmc.pmccr1 & PMCCR1_POWER_OFF) |
| 42 | gd->flags |= GD_FLG_SILENT; |
| 43 | |
| 44 | return 0; |
| 45 | } |
| 46 | |
| 47 | static u8 read_board_info(void) |
| 48 | { |
| 49 | u8 val8; |
| 50 | i2c_set_bus_num(0); |
| 51 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 52 | if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 53 | return val8; |
| 54 | else |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | int checkboard(void) |
| 59 | { |
| 60 | static const char * const rev_str[] = { |
| 61 | "0.0", |
| 62 | "0.1", |
| 63 | "1.0", |
| 64 | "1.1", |
| 65 | "<unknown>", |
| 66 | }; |
| 67 | u8 info; |
| 68 | int i; |
| 69 | |
| 70 | info = read_board_info(); |
| 71 | i = (!info) ? 4: info & 0x03; |
| 72 | |
| 73 | printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]); |
| 74 | |
| 75 | return 0; |
| 76 | } |
| 77 | |
| 78 | static struct pci_region pci_regions[] = { |
| 79 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 80 | bus_start: CONFIG_SYS_PCI_MEM_BASE, |
| 81 | phys_start: CONFIG_SYS_PCI_MEM_PHYS, |
| 82 | size: CONFIG_SYS_PCI_MEM_SIZE, |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 83 | flags: PCI_REGION_MEM | PCI_REGION_PREFETCH |
| 84 | }, |
| 85 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 86 | bus_start: CONFIG_SYS_PCI_MMIO_BASE, |
| 87 | phys_start: CONFIG_SYS_PCI_MMIO_PHYS, |
| 88 | size: CONFIG_SYS_PCI_MMIO_SIZE, |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 89 | flags: PCI_REGION_MEM |
| 90 | }, |
| 91 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 92 | bus_start: CONFIG_SYS_PCI_IO_BASE, |
| 93 | phys_start: CONFIG_SYS_PCI_IO_PHYS, |
| 94 | size: CONFIG_SYS_PCI_IO_SIZE, |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 95 | flags: PCI_REGION_IO |
| 96 | } |
| 97 | }; |
| 98 | |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 99 | static struct pci_region pcie_regions_0[] = { |
| 100 | { |
| 101 | .bus_start = CONFIG_SYS_PCIE1_MEM_BASE, |
| 102 | .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS, |
| 103 | .size = CONFIG_SYS_PCIE1_MEM_SIZE, |
| 104 | .flags = PCI_REGION_MEM, |
| 105 | }, |
| 106 | { |
| 107 | .bus_start = CONFIG_SYS_PCIE1_IO_BASE, |
| 108 | .phys_start = CONFIG_SYS_PCIE1_IO_PHYS, |
| 109 | .size = CONFIG_SYS_PCIE1_IO_SIZE, |
| 110 | .flags = PCI_REGION_IO, |
| 111 | }, |
| 112 | }; |
| 113 | |
| 114 | static struct pci_region pcie_regions_1[] = { |
| 115 | { |
| 116 | .bus_start = CONFIG_SYS_PCIE2_MEM_BASE, |
| 117 | .phys_start = CONFIG_SYS_PCIE2_MEM_PHYS, |
| 118 | .size = CONFIG_SYS_PCIE2_MEM_SIZE, |
| 119 | .flags = PCI_REGION_MEM, |
| 120 | }, |
| 121 | { |
| 122 | .bus_start = CONFIG_SYS_PCIE2_IO_BASE, |
| 123 | .phys_start = CONFIG_SYS_PCIE2_IO_PHYS, |
| 124 | .size = CONFIG_SYS_PCIE2_IO_SIZE, |
| 125 | .flags = PCI_REGION_IO, |
| 126 | }, |
| 127 | }; |
| 128 | |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 129 | void pci_init_board(void) |
| 130 | { |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 131 | volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 132 | volatile sysconf83xx_t *sysconf = &immr->sysconf; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 133 | volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; |
| 134 | volatile law83xx_t *pci_law = immr->sysconf.pcilaw; |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 135 | volatile law83xx_t *pcie_law = sysconf->pcielaw; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 136 | struct pci_region *reg[] = { pci_regions }; |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 137 | struct pci_region *pcie_reg[] = { pcie_regions_0, pcie_regions_1, }; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 138 | int warmboot; |
| 139 | |
| 140 | /* Enable all 3 PCI_CLK_OUTPUTs. */ |
| 141 | clk->occr |= 0xe0000000; |
| 142 | |
| 143 | /* |
| 144 | * Configure PCI Local Access Windows |
| 145 | */ |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 146 | pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 147 | pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; |
| 148 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 149 | pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR; |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 150 | pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; |
| 151 | |
| 152 | warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; |
| 153 | warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF; |
| 154 | |
| 155 | mpc83xx_pci_init(1, reg, warmboot); |
Anton Vorontsov | 8f11e34 | 2009-01-08 04:26:17 +0300 | [diff] [blame] | 156 | |
| 157 | /* Configure the clock for PCIE controller */ |
| 158 | clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM | SCCR_PCIEXP2CM, |
| 159 | SCCR_PCIEXP1CM_1 | SCCR_PCIEXP2CM_1); |
| 160 | |
| 161 | /* Deassert the resets in the control register */ |
| 162 | out_be32(&sysconf->pecr1, 0xE0008000); |
| 163 | out_be32(&sysconf->pecr2, 0xE0008000); |
| 164 | udelay(2000); |
| 165 | |
| 166 | /* Configure PCI Express Local Access Windows */ |
| 167 | out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR); |
| 168 | out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB); |
| 169 | |
| 170 | out_be32(&pcie_law[1].bar, CONFIG_SYS_PCIE2_BASE & LAWBAR_BAR); |
| 171 | out_be32(&pcie_law[1].ar, LBLAWAR_EN | LBLAWAR_512MB); |
| 172 | |
| 173 | mpc83xx_pcie_init(2, pcie_reg, warmboot); |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 174 | } |
| 175 | |
| 176 | #if defined(CONFIG_OF_BOARD_SETUP) |
Anton Vorontsov | 25f5f0d | 2008-07-08 21:00:04 +0400 | [diff] [blame] | 177 | void fdt_tsec1_fixup(void *fdt, bd_t *bd) |
| 178 | { |
| 179 | char *mpc8315erdb = getenv("mpc8315erdb"); |
| 180 | const char disabled[] = "disabled"; |
| 181 | const char *path; |
| 182 | int ret; |
| 183 | |
Anton Vorontsov | 021f6df | 2008-07-10 17:20:51 +0400 | [diff] [blame] | 184 | if (!mpc8315erdb) |
| 185 | return; |
| 186 | |
| 187 | if (!strcmp(mpc8315erdb, "tsec1")) { |
| 188 | return; |
| 189 | } else if (strcmp(mpc8315erdb, "ulpi")) { |
| 190 | printf("WARNING: wrong `mpc8315erdb' environment " |
| 191 | "variable specified: `%s'. Should be `ulpi' " |
| 192 | "or `tsec1'.\n", mpc8315erdb); |
| 193 | return; |
Anton Vorontsov | 25f5f0d | 2008-07-08 21:00:04 +0400 | [diff] [blame] | 194 | } |
| 195 | |
| 196 | ret = fdt_path_offset(fdt, "/aliases"); |
| 197 | if (ret < 0) { |
| 198 | printf("WARNING: can't find /aliases node\n"); |
| 199 | return; |
| 200 | } |
| 201 | |
| 202 | path = fdt_getprop(fdt, ret, "ethernet0", NULL); |
| 203 | if (!path) { |
| 204 | printf("WARNING: can't find ethernet0 alias\n"); |
| 205 | return; |
| 206 | } |
| 207 | |
| 208 | do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1); |
| 209 | } |
| 210 | |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 211 | void ft_board_setup(void *blob, bd_t *bd) |
| 212 | { |
| 213 | ft_cpu_setup(blob, bd); |
| 214 | #ifdef CONFIG_PCI |
| 215 | ft_pci_setup(blob, bd); |
| 216 | #endif |
Anton Vorontsov | 25f5f0d | 2008-07-08 21:00:04 +0400 | [diff] [blame] | 217 | fdt_fixup_dr_usb(blob, bd); |
| 218 | fdt_tsec1_fixup(blob, bd); |
Dave Liu | 8bd522c | 2008-01-11 18:48:24 +0800 | [diff] [blame] | 219 | } |
| 220 | #endif |
Ben Warren | 10efa02 | 2008-08-31 20:37:00 -0700 | [diff] [blame] | 221 | |
| 222 | int board_eth_init(bd_t *bis) |
| 223 | { |
| 224 | cpu_eth_init(bis); /* Initialize TSECs first */ |
| 225 | return pci_eth_init(bis); |
| 226 | } |