2 * linux/arch/arm/mach-clps711x/p720t.c
4 * Copyright (C) 2000-2001 Deep Blue Solutions Ltd
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.
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.
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
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/types.h>
23 #include <linux/string.h>
26 #include <linux/slab.h>
27 #include <linux/leds.h>
28 #include <linux/platform_device.h>
30 #include <mach/hardware.h>
31 #include <asm/pgtable.h>
33 #include <asm/setup.h>
34 #include <asm/sizes.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <mach/syspld.h>
42 #define GPIO_USERLED CLPS711X_GPIO(3, 0)
45 * Map the P720T system PLD. It occupies two address spaces:
46 * 0x10000000 and 0x10400000. We map both regions as one.
48 static struct map_desc p720t_io_desc
[] __initdata
= {
50 .virtual = SYSPLD_VIRT_BASE
,
51 .pfn
= __phys_to_pfn(SYSPLD_PHYS_BASE
),
58 fixup_p720t(struct tag
*tag
, char **cmdline
, struct meminfo
*mi
)
61 * Our bootloader doesn't setup any tags (yet).
63 if (tag
->hdr
.tag
!= ATAG_CORE
) {
64 tag
->hdr
.tag
= ATAG_CORE
;
65 tag
->hdr
.size
= tag_size(tag_core
);
66 tag
->u
.core
.flags
= 0;
67 tag
->u
.core
.pagesize
= PAGE_SIZE
;
68 tag
->u
.core
.rootdev
= 0x0100;
71 tag
->hdr
.tag
= ATAG_MEM
;
72 tag
->hdr
.size
= tag_size(tag_mem32
);
73 tag
->u
.mem
.size
= 4096;
74 tag
->u
.mem
.start
= PHYS_OFFSET
;
77 tag
->hdr
.tag
= ATAG_NONE
;
82 static void __init
p720t_map_io(void)
85 iotable_init(p720t_io_desc
, ARRAY_SIZE(p720t_io_desc
));
88 static void __init
p720t_init_early(void)
91 * Power down as much as possible in case we don't
92 * have the drivers loaded.
95 PLD_PWR
&= ~(PLD_S4_ON
|PLD_S3_ON
|PLD_S2_ON
|PLD_S1_ON
);
103 if (!IS_ENABLED(CONFIG_DEBUG_LL
)) {
109 static struct gpio_led p720t_gpio_leds
[] = {
112 .default_trigger
= "heartbeat",
113 .gpio
= GPIO_USERLED
,
117 static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata
= {
118 .leds
= p720t_gpio_leds
,
119 .num_leds
= ARRAY_SIZE(p720t_gpio_leds
),
122 static void __init
p720t_init(void)
124 platform_device_register_simple("video-clps711x", 0, NULL
, 0);
127 static void __init
p720t_init_late(void)
129 platform_device_register_data(&platform_bus
, "leds-gpio", 0,
130 &p720t_gpio_led_pdata
,
131 sizeof(p720t_gpio_led_pdata
));
134 MACHINE_START(P720T
, "ARM-Prospector720T")
135 /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
136 .atag_offset
= 0x100,
137 .fixup
= fixup_p720t
,
138 .map_io
= p720t_map_io
,
139 .init_early
= p720t_init_early
,
140 .init_irq
= clps711x_init_irq
,
141 .timer
= &clps711x_timer
,
142 .init_machine
= p720t_init
,
143 .init_late
= p720t_init_late
,
144 .restart
= clps711x_restart
,