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8bd522ce DL |
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> | |
8bd522ce | 28 | #include <libfdt.h> |
25f5f0d4 | 29 | #include <fdt_support.h> |
8bd522ce DL |
30 | #include <pci.h> |
31 | #include <mpc83xx.h> | |
10efa024 | 32 | #include <netdev.h> |
8bd522ce DL |
33 | |
34 | DECLARE_GLOBAL_DATA_PTR; | |
35 | ||
36 | int board_early_init_f(void) | |
37 | { | |
6d0f6bcf | 38 | volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; |
8bd522ce DL |
39 | |
40 | if (im->pmc.pmccr1 & PMCCR1_POWER_OFF) | |
41 | gd->flags |= GD_FLG_SILENT; | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static u8 read_board_info(void) | |
47 | { | |
48 | u8 val8; | |
49 | i2c_set_bus_num(0); | |
50 | ||
6d0f6bcf | 51 | if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0) |
8bd522ce DL |
52 | return val8; |
53 | else | |
54 | return 0; | |
55 | } | |
56 | ||
57 | int checkboard(void) | |
58 | { | |
59 | static const char * const rev_str[] = { | |
60 | "0.0", | |
61 | "0.1", | |
62 | "1.0", | |
63 | "1.1", | |
64 | "<unknown>", | |
65 | }; | |
66 | u8 info; | |
67 | int i; | |
68 | ||
69 | info = read_board_info(); | |
70 | i = (!info) ? 4: info & 0x03; | |
71 | ||
72 | printf("Board: Freescale MPC8315ERDB Rev %s\n", rev_str[i]); | |
73 | ||
74 | return 0; | |
75 | } | |
76 | ||
77 | static struct pci_region pci_regions[] = { | |
78 | { | |
6d0f6bcf JCPV |
79 | bus_start: CONFIG_SYS_PCI_MEM_BASE, |
80 | phys_start: CONFIG_SYS_PCI_MEM_PHYS, | |
81 | size: CONFIG_SYS_PCI_MEM_SIZE, | |
8bd522ce DL |
82 | flags: PCI_REGION_MEM | PCI_REGION_PREFETCH |
83 | }, | |
84 | { | |
6d0f6bcf JCPV |
85 | bus_start: CONFIG_SYS_PCI_MMIO_BASE, |
86 | phys_start: CONFIG_SYS_PCI_MMIO_PHYS, | |
87 | size: CONFIG_SYS_PCI_MMIO_SIZE, | |
8bd522ce DL |
88 | flags: PCI_REGION_MEM |
89 | }, | |
90 | { | |
6d0f6bcf JCPV |
91 | bus_start: CONFIG_SYS_PCI_IO_BASE, |
92 | phys_start: CONFIG_SYS_PCI_IO_PHYS, | |
93 | size: CONFIG_SYS_PCI_IO_SIZE, | |
8bd522ce DL |
94 | flags: PCI_REGION_IO |
95 | } | |
96 | }; | |
97 | ||
98 | void pci_init_board(void) | |
99 | { | |
6d0f6bcf | 100 | volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; |
8bd522ce DL |
101 | volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; |
102 | volatile law83xx_t *pci_law = immr->sysconf.pcilaw; | |
103 | struct pci_region *reg[] = { pci_regions }; | |
104 | int warmboot; | |
105 | ||
106 | /* Enable all 3 PCI_CLK_OUTPUTs. */ | |
107 | clk->occr |= 0xe0000000; | |
108 | ||
109 | /* | |
110 | * Configure PCI Local Access Windows | |
111 | */ | |
6d0f6bcf | 112 | pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR; |
8bd522ce DL |
113 | pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; |
114 | ||
6d0f6bcf | 115 | pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR; |
8bd522ce DL |
116 | pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; |
117 | ||
118 | warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM; | |
119 | warmboot |= immr->pmc.pmccr1 & PMCCR1_POWER_OFF; | |
120 | ||
121 | mpc83xx_pci_init(1, reg, warmboot); | |
122 | } | |
123 | ||
124 | #if defined(CONFIG_OF_BOARD_SETUP) | |
25f5f0d4 AV |
125 | void fdt_tsec1_fixup(void *fdt, bd_t *bd) |
126 | { | |
127 | char *mpc8315erdb = getenv("mpc8315erdb"); | |
128 | const char disabled[] = "disabled"; | |
129 | const char *path; | |
130 | int ret; | |
131 | ||
021f6df6 AV |
132 | if (!mpc8315erdb) |
133 | return; | |
134 | ||
135 | if (!strcmp(mpc8315erdb, "tsec1")) { | |
136 | return; | |
137 | } else if (strcmp(mpc8315erdb, "ulpi")) { | |
138 | printf("WARNING: wrong `mpc8315erdb' environment " | |
139 | "variable specified: `%s'. Should be `ulpi' " | |
140 | "or `tsec1'.\n", mpc8315erdb); | |
141 | return; | |
25f5f0d4 AV |
142 | } |
143 | ||
144 | ret = fdt_path_offset(fdt, "/aliases"); | |
145 | if (ret < 0) { | |
146 | printf("WARNING: can't find /aliases node\n"); | |
147 | return; | |
148 | } | |
149 | ||
150 | path = fdt_getprop(fdt, ret, "ethernet0", NULL); | |
151 | if (!path) { | |
152 | printf("WARNING: can't find ethernet0 alias\n"); | |
153 | return; | |
154 | } | |
155 | ||
156 | do_fixup_by_path(fdt, path, "status", disabled, sizeof(disabled), 1); | |
157 | } | |
158 | ||
8bd522ce DL |
159 | void ft_board_setup(void *blob, bd_t *bd) |
160 | { | |
161 | ft_cpu_setup(blob, bd); | |
162 | #ifdef CONFIG_PCI | |
163 | ft_pci_setup(blob, bd); | |
164 | #endif | |
25f5f0d4 AV |
165 | fdt_fixup_dr_usb(blob, bd); |
166 | fdt_tsec1_fixup(blob, bd); | |
8bd522ce DL |
167 | } |
168 | #endif | |
10efa024 BW |
169 | |
170 | int board_eth_init(bd_t *bis) | |
171 | { | |
172 | cpu_eth_init(bis); /* Initialize TSECs first */ | |
173 | return pci_eth_init(bis); | |
174 | } |