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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/mach-clps711x/p720t.c | |
3 | * | |
4 | * Copyright (C) 2000-2001 Deep Blue Solutions Ltd | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
1da177e4 LT |
20 | #include <linux/kernel.h> |
21 | #include <linux/init.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/string.h> | |
24 | #include <linux/mm.h> | |
fced80c7 | 25 | #include <linux/io.h> |
8ee8ef29 BW |
26 | #include <linux/slab.h> |
27 | #include <linux/leds.h> | |
94760bf2 AS |
28 | #include <linux/sizes.h> |
29 | #include <linux/backlight.h> | |
b3a076dd | 30 | #include <linux/platform_device.h> |
e377ca1e AS |
31 | #include <linux/mtd/partitions.h> |
32 | #include <linux/mtd/nand-gpio.h> | |
1da177e4 | 33 | |
a09e64fb | 34 | #include <mach/hardware.h> |
1da177e4 LT |
35 | #include <asm/pgtable.h> |
36 | #include <asm/page.h> | |
37 | #include <asm/setup.h> | |
38 | #include <asm/mach-types.h> | |
39 | #include <asm/mach/arch.h> | |
40 | #include <asm/mach/map.h> | |
a09e64fb | 41 | #include <mach/syspld.h> |
1da177e4 | 42 | |
87c37b51 AS |
43 | #include <video/platform_lcd.h> |
44 | ||
1da177e4 LT |
45 | #include "common.h" |
46 | ||
e377ca1e AS |
47 | #define P720T_USERLED CLPS711X_GPIO(3, 0) |
48 | #define P720T_NAND_CLE CLPS711X_GPIO(4, 0) | |
49 | #define P720T_NAND_ALE CLPS711X_GPIO(4, 1) | |
50 | #define P720T_NAND_NCE CLPS711X_GPIO(4, 2) | |
51 | ||
52 | #define P720T_NAND_BASE (CLPS711X_SDRAM1_BASE) | |
53 | ||
54 | static struct resource p720t_nand_resource[] __initdata = { | |
55 | DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4), | |
56 | }; | |
57 | ||
58 | static struct mtd_partition p720t_nand_parts[] __initdata = { | |
59 | { | |
60 | .name = "Flash partition 1", | |
61 | .offset = 0, | |
62 | .size = SZ_2M, | |
63 | }, | |
64 | { | |
65 | .name = "Flash partition 2", | |
66 | .offset = MTDPART_OFS_APPEND, | |
67 | .size = MTDPART_SIZ_FULL, | |
68 | }, | |
69 | }; | |
70 | ||
71 | static struct gpio_nand_platdata p720t_nand_pdata __initdata = { | |
72 | .gpio_rdy = -1, | |
73 | .gpio_nce = P720T_NAND_NCE, | |
74 | .gpio_ale = P720T_NAND_ALE, | |
75 | .gpio_cle = P720T_NAND_CLE, | |
76 | .gpio_nwp = -1, | |
77 | .chip_delay = 15, | |
78 | .parts = p720t_nand_parts, | |
79 | .num_parts = ARRAY_SIZE(p720t_nand_parts), | |
80 | }; | |
81 | ||
82 | static struct platform_device p720t_nand_pdev __initdata = { | |
83 | .name = "gpio-nand", | |
84 | .id = -1, | |
85 | .resource = p720t_nand_resource, | |
86 | .num_resources = ARRAY_SIZE(p720t_nand_resource), | |
87 | .dev = { | |
88 | .platform_data = &p720t_nand_pdata, | |
89 | }, | |
90 | }; | |
b3a076dd | 91 | |
87c37b51 AS |
92 | static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power) |
93 | { | |
94 | if (power) { | |
95 | PLD_LCDEN = PLD_LCDEN_EN; | |
96 | PLD_PWR |= PLD_S4_ON | PLD_S2_ON | PLD_S1_ON; | |
97 | } else { | |
98 | PLD_PWR &= ~(PLD_S4_ON | PLD_S2_ON | PLD_S1_ON); | |
99 | PLD_LCDEN = 0; | |
100 | } | |
101 | } | |
102 | ||
103 | static struct plat_lcd_data p720t_lcd_power_pdata = { | |
104 | .set_power = p720t_lcd_power_set, | |
105 | }; | |
106 | ||
94760bf2 AS |
107 | static void p720t_lcd_backlight_set_intensity(int intensity) |
108 | { | |
109 | if (intensity) | |
110 | PLD_PWR |= PLD_S3_ON; | |
111 | else | |
112 | PLD_PWR = 0; | |
113 | } | |
114 | ||
115 | static struct generic_bl_info p720t_lcd_backlight_pdata = { | |
116 | .name = "lcd-backlight.0", | |
117 | .default_intensity = 0x01, | |
118 | .max_intensity = 0x01, | |
119 | .set_bl_intensity = p720t_lcd_backlight_set_intensity, | |
120 | }; | |
121 | ||
1da177e4 | 122 | /* |
6cb1b145 AS |
123 | * Map the P720T system PLD. It occupies two address spaces: |
124 | * 0x10000000 and 0x10400000. We map both regions as one. | |
1da177e4 LT |
125 | */ |
126 | static struct map_desc p720t_io_desc[] __initdata = { | |
f10083f5 DS |
127 | { |
128 | .virtual = SYSPLD_VIRT_BASE, | |
129 | .pfn = __phys_to_pfn(SYSPLD_PHYS_BASE), | |
6cb1b145 AS |
130 | .length = SZ_8M, |
131 | .type = MT_DEVICE, | |
132 | }, | |
1da177e4 LT |
133 | }; |
134 | ||
135 | static void __init | |
0744a3ee | 136 | fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi) |
1da177e4 LT |
137 | { |
138 | /* | |
139 | * Our bootloader doesn't setup any tags (yet). | |
140 | */ | |
141 | if (tag->hdr.tag != ATAG_CORE) { | |
142 | tag->hdr.tag = ATAG_CORE; | |
143 | tag->hdr.size = tag_size(tag_core); | |
144 | tag->u.core.flags = 0; | |
145 | tag->u.core.pagesize = PAGE_SIZE; | |
146 | tag->u.core.rootdev = 0x0100; | |
147 | ||
148 | tag = tag_next(tag); | |
149 | tag->hdr.tag = ATAG_MEM; | |
150 | tag->hdr.size = tag_size(tag_mem32); | |
151 | tag->u.mem.size = 4096; | |
152 | tag->u.mem.start = PHYS_OFFSET; | |
153 | ||
154 | tag = tag_next(tag); | |
155 | tag->hdr.tag = ATAG_NONE; | |
156 | tag->hdr.size = 0; | |
157 | } | |
158 | } | |
159 | ||
160 | static void __init p720t_map_io(void) | |
161 | { | |
162 | clps711x_map_io(); | |
163 | iotable_init(p720t_io_desc, ARRAY_SIZE(p720t_io_desc)); | |
164 | } | |
165 | ||
02d7d6d2 | 166 | static void __init p720t_init_early(void) |
1da177e4 LT |
167 | { |
168 | /* | |
169 | * Power down as much as possible in case we don't | |
170 | * have the drivers loaded. | |
171 | */ | |
172 | PLD_LCDEN = 0; | |
173 | PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON); | |
174 | ||
175 | PLD_KBD = 0; | |
176 | PLD_IO = 0; | |
177 | PLD_IRDA = 0; | |
178 | PLD_CODEC = 0; | |
179 | PLD_TCH = 0; | |
180 | PLD_SPI = 0; | |
02d7d6d2 AS |
181 | if (!IS_ENABLED(CONFIG_DEBUG_LL)) { |
182 | PLD_COM2 = 0; | |
183 | PLD_COM1 = 0; | |
184 | } | |
1da177e4 LT |
185 | } |
186 | ||
b3a076dd AS |
187 | static struct gpio_led p720t_gpio_leds[] = { |
188 | { | |
189 | .name = "User LED", | |
190 | .default_trigger = "heartbeat", | |
e377ca1e | 191 | .gpio = P720T_USERLED, |
b3a076dd AS |
192 | }, |
193 | }; | |
8ee8ef29 | 194 | |
b3a076dd AS |
195 | static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = { |
196 | .leds = p720t_gpio_leds, | |
197 | .num_leds = ARRAY_SIZE(p720t_gpio_leds), | |
198 | }; | |
8ee8ef29 | 199 | |
dd850f12 AS |
200 | static void __init p720t_init(void) |
201 | { | |
e377ca1e | 202 | platform_device_register(&p720t_nand_pdev); |
87c37b51 AS |
203 | platform_device_register_data(&platform_bus, "platform-lcd", 0, |
204 | &p720t_lcd_power_pdata, | |
205 | sizeof(p720t_lcd_power_pdata)); | |
94760bf2 AS |
206 | platform_device_register_data(&platform_bus, "generic-bl", 0, |
207 | &p720t_lcd_backlight_pdata, | |
208 | sizeof(p720t_lcd_backlight_pdata)); | |
dd850f12 AS |
209 | platform_device_register_simple("video-clps711x", 0, NULL, 0); |
210 | } | |
211 | ||
b3a076dd | 212 | static void __init p720t_init_late(void) |
8ee8ef29 | 213 | { |
b3a076dd AS |
214 | platform_device_register_data(&platform_bus, "leds-gpio", 0, |
215 | &p720t_gpio_led_pdata, | |
216 | sizeof(p720t_gpio_led_pdata)); | |
8ee8ef29 BW |
217 | } |
218 | ||
02d7d6d2 AS |
219 | MACHINE_START(P720T, "ARM-Prospector720T") |
220 | /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */ | |
221 | .atag_offset = 0x100, | |
0d8be81c | 222 | .nr_irqs = CLPS711X_NR_IRQS, |
02d7d6d2 | 223 | .fixup = fixup_p720t, |
02d7d6d2 | 224 | .map_io = p720t_map_io, |
b3a076dd | 225 | .init_early = p720t_init_early, |
02d7d6d2 | 226 | .init_irq = clps711x_init_irq, |
6bb27d73 | 227 | .init_time = clps711x_timer_init, |
dd850f12 | 228 | .init_machine = p720t_init, |
b3a076dd | 229 | .init_late = p720t_init_late, |
99f04c8f | 230 | .handle_irq = clps711x_handle_irq, |
02d7d6d2 AS |
231 | .restart = clps711x_restart, |
232 | MACHINE_END |