1 /*
2 * (C) Copyright 2007
3 * Sascha Hauer, Pengutronix
4 *
5 * (C) Copyright 2009 Freescale Semiconductor, Inc.
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 <asm/arch/imx-regs.h>
28 #include <asm/arch/clock.h>
29 #include <asm/errno.h>
30 #include <asm/io.h>
31
32 #ifdef CONFIG_FSL_ESDHC
33 #include <fsl_esdhc.h>
34 #endif
35
get_cpu_rev(void)36 u32 get_cpu_rev(void)
37 {
38 int reg;
39 int system_rev;
40
41 reg = __raw_readl(ROM_SI_REV);
42 switch (reg) {
43 case 0x02:
44 system_rev = 0x51000 | CHIP_REV_1_1;
45 break;
46 case 0x10:
47 if ((__raw_readl(GPIO1_BASE_ADDR + 0x0) & (0x1 << 22)) == 0)
48 system_rev = 0x51000 | CHIP_REV_2_5;
49 else
50 system_rev = 0x51000 | CHIP_REV_2_0;
51 break;
52 case 0x20:
53 system_rev = 0x51000 | CHIP_REV_3_0;
54 break;
55 return system_rev;
56 default:
57 system_rev = 0x51000 | CHIP_REV_1_0;
58 break;
59 }
60 return system_rev;
61 }
62
63
64 #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)65 int print_cpuinfo(void)
66 {
67 u32 cpurev;
68
69 cpurev = get_cpu_rev();
70 printf("CPU: Freescale i.MX51 family rev%d.%d at %d MHz\n",
71 (cpurev & 0xF0) >> 4,
72 (cpurev & 0x0F) >> 4,
73 mxc_get_clock(MXC_ARM_CLK) / 1000000);
74 return 0;
75 }
76 #endif
77
78 /*
79 * Initializes on-chip ethernet controllers.
80 * to override, implement board_eth_init()
81 */
82 #if defined(CONFIG_FEC_MXC)
83 extern int fecmxc_initialize(bd_t *bis);
84 #endif
85
cpu_eth_init(bd_t * bis)86 int cpu_eth_init(bd_t *bis)
87 {
88 int rc = -ENODEV;
89
90 #if defined(CONFIG_FEC_MXC)
91 rc = fecmxc_initialize(bis);
92 #endif
93
94 return rc;
95 }
96
97 /*
98 * Initializes on-chip MMC controllers.
99 * to override, implement board_mmc_init()
100 */
cpu_mmc_init(bd_t * bis)101 int cpu_mmc_init(bd_t *bis)
102 {
103 #ifdef CONFIG_FSL_ESDHC
104 return fsl_esdhc_mmc_init(bis);
105 #else
106 return 0;
107 #endif
108 }
109
110
reset_cpu(ulong addr)111 void reset_cpu(ulong addr)
112 {
113 __raw_writew(4, WDOG1_BASE_ADDR);
114 }
115