xref: /openbmc/u-boot/board/renesas/r0p7734/r0p7734.c (revision e874d5b0)
1 /*
2  * Copyright (C) 2011 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
3  * Copyright (C) 2011 Renesas Solutions Corp.
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 <asm/io.h>
26 #include <asm/processor.h>
27 #include <netdev.h>
28 #include <i2c.h>
29 
30 DECLARE_GLOBAL_DATA_PTR;
31 
32 #define MODEMR			(0xFFCC0020)
33 #define MODEMR_MASK		(0x6)
34 #define MODEMR_533MHZ	(0x2)
35 
36 int checkboard(void)
37 {
38 	u32 r = readl(MODEMR);
39 	if ((r & MODEMR_MASK) & MODEMR_533MHZ)
40 		puts("CPU Clock: 533MHz\n");
41 	else
42 		puts("CPU Clock: 400MHz\n");
43 
44 	puts("BOARD: Renesas Technology Corp. R0P7734C00000RZ\n");
45 	return 0;
46 }
47 
48 #define MSTPSR1			(0xFFC80044)
49 #define MSTPCR1			(0xFFC80034)
50 #define MSTPSR1_GETHER	(1 << 14)
51 
52 int board_init(void)
53 {
54 #if defined(CONFIG_SH_ETHER)
55 	u32 r = readl(MSTPSR1);
56 	if (r & MSTPSR1_GETHER)
57 		writel((r & ~MSTPSR1_GETHER), MSTPCR1);
58 #endif
59 
60 	return 0;
61 }
62 
63 int board_late_init(void)
64 {
65 	u8 mac[6];
66 
67 	/* Read Mac Address and set*/
68 	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
69 	i2c_set_bus_num(CONFIG_SYS_I2C_MODULE);
70 
71 	/* Read MAC address */
72 	i2c_read(0x50, 0x10, 0, mac, 6);
73 
74 	if (is_valid_ether_addr(mac))
75 		eth_setenv_enetaddr("ethaddr", mac);
76 
77 	return 0;
78 }
79 
80 int dram_init(void)
81 {
82 	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
83 	gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
84 	printf("DRAM:  %dMB\n", CONFIG_SYS_SDRAM_SIZE / (1024 * 1024));
85 
86 	return 0;
87 }
88 
89 #ifdef CONFIG_SMC911X
90 int board_eth_init(bd_t *bis)
91 {
92 	int rc = 0;
93 	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
94 	return rc;
95 }
96 #endif
97