board-msm8960.c revision 9e775ad19f52d70a53797b4d0eb740c52b0a9567 
1/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
15 * 02110-1301, USA.
16 *
17 */
18#include <linux/kernel.h>
19#include <linux/platform_device.h>
20#include <linux/io.h>
21#include <linux/irq.h>
22#include <linux/clkdev.h>
23#include <linux/memblock.h>
24
25#include <asm/mach-types.h>
26#include <asm/mach/arch.h>
27#include <asm/hardware/gic.h>
28#include <asm/setup.h>
29
30#include <mach/board.h>
31#include <mach/msm_iomap.h>
32
33#include "devices.h"
34
35static void __init msm8960_fixup(struct machine_desc *desc, struct tag *tag,
36			 char **cmdline, struct meminfo *mi)
37{
38	for (; tag->hdr.size; tag = tag_next(tag))
39		if (tag->hdr.tag == ATAG_MEM &&
40				tag->u.mem.start == 0x40200000) {
41			tag->u.mem.start = 0x40000000;
42			tag->u.mem.size += SZ_2M;
43		}
44}
45
46static void __init msm8960_reserve(void)
47{
48	memblock_remove(0x40000000, SZ_2M);
49}
50
51static void __init msm8960_map_io(void)
52{
53	msm_map_msm8960_io();
54}
55
56static void __init msm8960_init_irq(void)
57{
58	unsigned int i;
59	gic_init(0, GIC_PPI_START, MSM_QGIC_DIST_BASE,
60		 (void *)MSM_QGIC_CPU_BASE);
61
62	/* Edge trigger PPIs except AVS_SVICINT and AVS_SVICINTSWDONE */
63	writel(0xFFFFD7FF, MSM_QGIC_DIST_BASE + GIC_DIST_CONFIG + 4);
64
65	if (machine_is_msm8960_rumi3())
66		writel(0x0000FFFF, MSM_QGIC_DIST_BASE + GIC_DIST_ENABLE_SET);
67
68	/* FIXME: Not installing AVS_SVICINT and AVS_SVICINTSWDONE yet
69	 * as they are configured as level, which does not play nice with
70	 * handle_percpu_irq.
71	 */
72	for (i = GIC_PPI_START; i < GIC_SPI_START; i++) {
73		if (i != AVS_SVICINT && i != AVS_SVICINTSWDONE)
74			irq_set_handler(i, handle_percpu_irq);
75	}
76}
77
78static struct platform_device *sim_devices[] __initdata = {
79	&msm8960_device_uart_gsbi2,
80};
81
82static struct platform_device *rumi3_devices[] __initdata = {
83	&msm8960_device_uart_gsbi5,
84};
85
86static void __init msm8960_sim_init(void)
87{
88	platform_add_devices(sim_devices, ARRAY_SIZE(sim_devices));
89}
90
91static void __init msm8960_rumi3_init(void)
92{
93	platform_add_devices(rumi3_devices, ARRAY_SIZE(rumi3_devices));
94}
95
96MACHINE_START(MSM8960_SIM, "QCT MSM8960 SIMULATOR")
97	.fixup = msm8960_fixup,
98	.reserve = msm8960_reserve,
99	.map_io = msm8960_map_io,
100	.init_irq = msm8960_init_irq,
101	.timer = &msm_timer,
102	.init_machine = msm8960_sim_init,
103MACHINE_END
104
105MACHINE_START(MSM8960_RUMI3, "QCT MSM8960 RUMI3")
106	.fixup = msm8960_fixup,
107	.reserve = msm8960_reserve,
108	.map_io = msm8960_map_io,
109	.init_irq = msm8960_init_irq,
110	.timer = &msm_timer,
111	.init_machine = msm8960_rumi3_init,
112MACHINE_END
113
114