1 /*
2  * Copyright (C) 2010 Freescale Semiconductor, Inc.
3  * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS for A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 #include <common.h>
25 #include <hwconfig.h>
26 #include <i2c.h>
27 #include <libfdt.h>
28 #include <fdt_support.h>
29 #include <pci.h>
30 #include <mpc83xx.h>
31 #include <vsc7385.h>
32 #include <netdev.h>
33 #include <asm/io.h>
34 #include <asm/fsl_serdes.h>
35 #include <asm/fsl_mpc83xx_serdes.h>
36 
37 DECLARE_GLOBAL_DATA_PTR;
38 
39 int board_early_init_f(void)
40 {
41 	immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
42 
43 	if (in_be32(&im->pmc.pmccr1) & PMCCR1_POWER_OFF)
44 		gd->flags |= GD_FLG_SILENT;
45 
46 	return 0;
47 }
48 
49 static u8 read_board_info(void)
50 {
51 	u8 val8;
52 	i2c_set_bus_num(0);
53 
54 	if (i2c_read(CONFIG_SYS_I2C_PCF8574A_ADDR, 0, 0, &val8, 1) == 0)
55 		return val8;
56 	else
57 		return 0;
58 }
59 
60 int checkboard(void)
61 {
62 	static const char * const rev_str[] = {
63 		"1.0",
64 		"<reserved>",
65 		"<reserved>",
66 		"<reserved>",
67 		"<unknown>",
68 	};
69 	u8 info;
70 	int i;
71 
72 	info = read_board_info();
73 	i = (!info) ? 4 : info & 0x03;
74 
75 	printf("Board: Freescale MPC8308RDB Rev %s\n", rev_str[i]);
76 
77 	return 0;
78 }
79 
80 static struct pci_region pcie_regions_0[] = {
81 	{
82 		.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
83 		.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
84 		.size = CONFIG_SYS_PCIE1_MEM_SIZE,
85 		.flags = PCI_REGION_MEM,
86 	},
87 	{
88 		.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
89 		.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
90 		.size = CONFIG_SYS_PCIE1_IO_SIZE,
91 		.flags = PCI_REGION_IO,
92 	},
93 };
94 
95 void pci_init_board(void)
96 {
97 	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
98 	sysconf83xx_t *sysconf = &immr->sysconf;
99 	clk83xx_t *clk = (clk83xx_t *)&immr->clk;
100 	law83xx_t *pcie_law = sysconf->pcielaw;
101 	struct pci_region *pcie_reg[] = { pcie_regions_0 };
102 
103 	fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
104 					FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
105 
106 	clrsetbits_be32(&clk->sccr, SCCR_PCIEXP1CM ,
107 				    SCCR_PCIEXP1CM_1);
108 
109 	/* Deassert the resets in the control register */
110 	out_be32(&sysconf->pecr1, 0xE0008000);
111 	udelay(2000);
112 
113 	/* Configure PCI Express Local Access Windows */
114 	out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
115 	out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
116 
117 	mpc83xx_pcie_init(1, pcie_reg, 0);
118 }
119 /*
120  * Miscellaneous late-boot configurations
121  *
122  * If a VSC7385 microcode image is present, then upload it.
123 */
124 int misc_init_r(void)
125 {
126 #ifdef CONFIG_VSC7385_IMAGE
127 	if (vsc7385_upload_firmware((void *) CONFIG_VSC7385_IMAGE,
128 		CONFIG_VSC7385_IMAGE_SIZE)) {
129 		puts("Failure uploading VSC7385 microcode.\n");
130 		return 1;
131 	}
132 #endif
133 
134 	return 0;
135 }
136 #if defined(CONFIG_OF_BOARD_SETUP)
137 void ft_board_setup(void *blob, bd_t *bd)
138 {
139 	ft_cpu_setup(blob, bd);
140 	fdt_fixup_dr_usb(blob, bd);
141 }
142 #endif
143 
144 int board_eth_init(bd_t *bis)
145 {
146 	int rv, num_if = 0;
147 
148 	/* Initialize TSECs first */
149 	if ((rv = cpu_eth_init(bis)) >= 0)
150 		num_if += rv;
151 	else
152 		printf("ERROR: failed to initialize TSECs.\n");
153 
154 	if ((rv = pci_eth_init(bis)) >= 0)
155 		num_if += rv;
156 	else
157 		printf("ERROR: failed to initialize PCI Ethernet.\n");
158 
159 	return num_if;
160 }
161