aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/board-4430sdp.c
blob: 8ba8fb5b2514cdb09343f98ea45676aff0b8fab8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
/*
 * Board support file for OMAP4430 SDP.
 *
 * Copyright (C) 2009 Texas Instruments
 *
 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * Based on mach-omap2/board-3430sdp.c
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/gpio.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include <plat/board.h>
#include <plat/common.h>
#include <plat/control.h>
#include <plat/timer-gp.h>
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>

static struct platform_device sdp4430_lcd_device = {
	.name		= "sdp4430_lcd",
	.id		= -1,
};

static struct platform_device *sdp4430_devices[] __initdata = {
	&sdp4430_lcd_device,
};

static struct omap_uart_config sdp4430_uart_config __initdata = {
	.enabled_uarts	= (1 << 0) | (1 << 1) | (1 << 2) | (1 << 3),
};

static struct omap_lcd_config sdp4430_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct omap_board_config_kernel sdp4430_config[] __initdata = {
	{ OMAP_TAG_LCD,		&sdp4430_lcd_config },
};

#ifdef CONFIG_CACHE_L2X0
noinline void omap_smc1(u32 fn, u32 arg)
{
	register u32 r12 asm("r12") = fn;
	register u32 r0 asm("r0") = arg;

	/* This is common routine cache secure monitor API used to
	 * modify the PL310 secure registers.
	 * r0 contains the value to be modified and "r12" contains
	 * the monitor API number. It uses few CPU registers
	 * internally and hence they need be backed up including
	 * link register "lr".
	 * Explicitly save r11 and r12 the compiler generated code
	 * won't save it.
	 */
	asm volatile(
		"stmfd r13!, {r11,r12}\n"
		"dsb\n"
		"smc\n"
		"ldmfd r13!, {r11,r12}\n"
		: "+r" (r0), "+r" (r12)
		:
		: "r4", "r5", "r10", "lr", "cc");
}
EXPORT_SYMBOL(omap_smc1);

static int __init omap_l2_cache_init(void)
{
	void __iomem *l2cache_base;

	/* To avoid code running on other OMAPs in
	 * multi-omap builds
	 */
	if (!cpu_is_omap44xx())
		return -ENODEV;

	/* Static mapping, never released */
	l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
	BUG_ON(!l2cache_base);

	/* Enable PL310 L2 Cache controller */
	omap_smc1(0x102, 0x1);

	/* 32KB way size, 16-way associativity,
	* parity disabled
	*/
	l2x0_init(l2cache_base, 0x0e050000, 0xc0000fff);

	return 0;
}
early_initcall(omap_l2_cache_init);
#endif

static void __init gic_init_irq(void)
{
	void __iomem *base;

	/* Static mapping, never released */
	base = ioremap(OMAP44XX_GIC_DIST_BASE, SZ_4K);
	BUG_ON(!base);
	gic_dist_init(0, base, 29);

	/* Static mapping, never released */
	gic_cpu_base_addr = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
	BUG_ON(!gic_cpu_base_addr);
	gic_cpu_init(0, gic_cpu_base_addr);
}

static void __init omap_4430sdp_init_irq(void)
{
	omap_board_config = sdp4430_config;
	omap_board_config_size = ARRAY_SIZE(sdp4430_config);
	omap2_init_common_hw(NULL, NULL);
#ifdef CONFIG_OMAP_32K_TIMER
	omap2_gp_clockevent_set_gptimer(1);
#endif
	gic_init_irq();
	omap_gpio_init();
}


static void __init omap_4430sdp_init(void)
{
	platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
	omap_serial_init();
}

static void __init omap_4430sdp_map_io(void)
{
	omap2_set_globals_443x();
	omap2_map_common_io();
}

MACHINE_START(OMAP_4430SDP, "OMAP4430 4430SDP board")
	/* Maintainer: Santosh Shilimkar - Texas Instruments Inc */
	.phys_io	= 0x48000000,
	.io_pg_offst	= ((0xfa000000) >> 18) & 0xfffc,
	.boot_params	= 0x80000100,
	.map_io		= omap_4430sdp_map_io,
	.init_irq	= omap_4430sdp_init_irq,
	.init_machine	= omap_4430sdp_init,
	.timer		= &omap_timer,
MACHINE_END