]>
Commit | Line | Data |
---|---|---|
376aee78 TR |
1 | /* |
2 | * Copyright (c) 2009 Wind River Systems, Inc. | |
3 | * Tom Rix <Tom.Rix@windriver.com> | |
4 | * | |
5 | * Derived from Zoom1 code by | |
6 | * Nishanth Menon <nm@ti.com> | |
7 | * Sunil Kumar <sunilsaini05@gmail.com> | |
8 | * Shashi Ranjan <shashiranjanmca05@gmail.com> | |
9 | * Richard Woodruff <r-woodruff2@ti.com> | |
10 | * Syed Mohammed Khasim <khasim@ti.com> | |
11 | * | |
12 | * | |
13 | * See file CREDITS for list of people who contributed to this | |
14 | * project. | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or | |
17 | * modify it under the terms of the GNU General Public License as | |
18 | * published by the Free Software Foundation; either version 2 of | |
19 | * the License, or (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
29 | * MA 02111-1307 USA | |
30 | */ | |
31 | #include <common.h> | |
83ae698f TR |
32 | #ifdef CONFIG_STATUS_LED |
33 | #include <status_led.h> | |
34 | #endif | |
376aee78 | 35 | #include <asm/io.h> |
a30f519b | 36 | #include <asm/arch/gpio.h> |
660888b7 | 37 | #include <asm/arch/mem.h> |
376aee78 TR |
38 | #include <asm/arch/mux.h> |
39 | #include <asm/arch/sys_proto.h> | |
40 | #include <asm/mach-types.h> | |
41 | #include "zoom2.h" | |
660888b7 TR |
42 | #include "zoom2_serial.h" |
43 | ||
44 | /* | |
45 | * This the the zoom2, board specific, gpmc configuration for the | |
46 | * quad uart on the debug board. The more general gpmc configurations | |
47 | * are setup at the cpu level in cpu/arm_cortexa8/omap3/mem.c | |
48 | * | |
49 | * The details of the setting of the serial gpmc setup are not available. | |
50 | * The values were provided by another party. | |
51 | */ | |
52 | extern void enable_gpmc_config(u32 *gpmc_config, gpmc_csx_t *gpmc_cs_base, | |
53 | u32 base, u32 size); | |
54 | ||
55 | static u32 gpmc_serial_TL16CP754C[GPMC_MAX_REG] = { | |
56 | 0x00011000, | |
57 | 0x001F1F01, | |
58 | 0x00080803, | |
59 | 0x1D091D09, | |
60 | 0x041D1F1F, | |
61 | 0x1D0904C4, 0 | |
62 | }; | |
376aee78 | 63 | |
a30f519b TR |
64 | /* Used to track the revision of the board */ |
65 | static zoom2_revision revision = ZOOM2_REVISION_UNKNOWN; | |
66 | ||
67 | /* | |
68 | * Routine: zoom2_get_revision | |
69 | * Description: Return the revision of the Zoom2 this code is running on. | |
70 | */ | |
71 | zoom2_revision zoom2_get_revision(void) | |
72 | { | |
73 | return revision; | |
74 | } | |
75 | ||
76 | /* | |
77 | * Routine: zoom2_identify | |
78 | * Description: Detect which version of Zoom2 we are running on. | |
79 | */ | |
80 | void zoom2_identify(void) | |
81 | { | |
82 | /* | |
83 | * To check for production board vs beta board, | |
84 | * check if gpio 94 is clear. | |
85 | * | |
86 | * No way yet to check for alpha board identity. | |
87 | * Alpha boards were produced in very limited quantities | |
88 | * and they are not commonly used. They are mentioned here | |
89 | * only for completeness. | |
90 | */ | |
91 | if (!omap_request_gpio(94)) { | |
92 | unsigned int val; | |
93 | ||
94 | omap_set_gpio_direction(94, 1); | |
95 | val = omap_get_gpio_datain(94); | |
96 | omap_free_gpio(94); | |
97 | ||
98 | if (val) | |
99 | revision = ZOOM2_REVISION_BETA; | |
100 | else | |
101 | revision = ZOOM2_REVISION_PRODUCTION; | |
102 | } | |
103 | ||
104 | printf("Board revision "); | |
105 | switch (revision) { | |
106 | case ZOOM2_REVISION_PRODUCTION: | |
107 | printf("Production\n"); | |
108 | break; | |
109 | case ZOOM2_REVISION_BETA: | |
110 | printf("Beta\n"); | |
111 | break; | |
112 | default: | |
113 | printf("Unknown\n"); | |
114 | break; | |
115 | } | |
116 | } | |
117 | ||
376aee78 TR |
118 | /* |
119 | * Routine: board_init | |
120 | * Description: Early hardware init. | |
121 | */ | |
122 | int board_init (void) | |
123 | { | |
124 | DECLARE_GLOBAL_DATA_PTR; | |
660888b7 TR |
125 | gpmc_csx_t *serial_cs_base; |
126 | u32 *gpmc_config; | |
376aee78 TR |
127 | |
128 | gpmc_init (); /* in SRAM or SDRAM, finish GPMC */ | |
660888b7 TR |
129 | |
130 | /* Configure console support on zoom2 */ | |
131 | gpmc_config = gpmc_serial_TL16CP754C; | |
132 | serial_cs_base = (gpmc_csx_t *) (GPMC_CONFIG_CS0_BASE + | |
133 | (3 * GPMC_CONFIG_WIDTH)); | |
134 | enable_gpmc_config(gpmc_config, | |
135 | serial_cs_base, | |
136 | SERIAL_TL16CP754C_BASE, | |
137 | GPMC_SIZE_16M); | |
138 | ||
376aee78 TR |
139 | /* board id for Linux */ |
140 | gd->bd->bi_arch_number = MACH_TYPE_OMAP_ZOOM2; | |
141 | /* boot param addr */ | |
142 | gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); | |
143 | ||
660888b7 TR |
144 | #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT) |
145 | status_led_set (STATUS_LED_BOOT, STATUS_LED_ON); | |
146 | #endif | |
376aee78 TR |
147 | return 0; |
148 | } | |
149 | ||
150 | /* | |
151 | * Routine: misc_init_r | |
152 | * Description: Configure zoom board specific configurations | |
153 | */ | |
a30f519b | 154 | int misc_init_r(void) |
376aee78 | 155 | { |
a30f519b TR |
156 | zoom2_identify(); |
157 | power_init_r(); | |
158 | dieid_num_r(); | |
376aee78 TR |
159 | return 0; |
160 | } | |
161 | ||
162 | /* | |
163 | * Routine: set_muxconf_regs | |
164 | * Description: Setting up the configuration Mux registers specific to the | |
165 | * hardware. Many pins need to be moved from protect to primary | |
166 | * mode. | |
167 | */ | |
168 | void set_muxconf_regs (void) | |
169 | { | |
170 | /* platform specific muxes */ | |
171 | MUX_ZOOM2 (); | |
172 | } |