1/*
2 * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
3 * Copyright 2011 Linaro Ltd.
4 *
5 * The code contained herein is licensed under the GNU General Public
6 * License. You may obtain a copy of the GNU General Public License
7 * Version 2 or later at the following locations:
8 *
9 * http://www.opensource.org/licenses/gpl-license.html
10 * http://www.gnu.org/copyleft/gpl.html
11 */
12
13#include <linux/io.h>
14#include <linux/irq.h>
15#include <linux/of_irq.h>
16#include <linux/of_platform.h>
17#include <asm/mach/arch.h>
18#include <asm/mach/time.h>
19
20#include "common.h"
21#include "hardware.h"
22
23static void __init imx51_init_early(void)
24{
25	mxc_set_cpu_type(MXC_CPU_MX51);
26}
27
28/*
29 * The MIPI HSC unit has been removed from the i.MX51 Reference Manual by
30 * the Freescale marketing division. However this did not remove the
31 * hardware from the chip which still needs to be configured for proper
32 * IPU support.
33 */
34#define MX51_MIPI_HSC_BASE 0x83fdc000
35static void __init imx51_ipu_mipi_setup(void)
36{
37	void __iomem *hsc_addr;
38
39	hsc_addr = ioremap(MX51_MIPI_HSC_BASE, SZ_16K);
40	WARN_ON(!hsc_addr);
41
42	/* setup MIPI module to legacy mode */
43	__raw_writel(0xf00, hsc_addr);
44
45	/* CSI mode: reserved; DI control mode: legacy (from Freescale BSP) */
46	__raw_writel(__raw_readl(hsc_addr + 0x800) | 0x30ff,
47		hsc_addr + 0x800);
48
49	iounmap(hsc_addr);
50}
51
52static void __init imx51_dt_init(void)
53{
54	struct platform_device_info devinfo = { .name = "cpufreq-dt", };
55
56	imx51_ipu_mipi_setup();
57	imx_src_init();
58
59	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
60	platform_device_register_full(&devinfo);
61}
62
63static void __init imx51_init_late(void)
64{
65	mx51_neon_fixup();
66	imx51_pm_init();
67}
68
69static const char * const imx51_dt_board_compat[] __initconst = {
70	"fsl,imx51",
71	NULL
72};
73
74DT_MACHINE_START(IMX51_DT, "Freescale i.MX51 (Device Tree Support)")
75	.init_early	= imx51_init_early,
76	.init_irq	= tzic_init_irq,
77	.init_machine	= imx51_dt_init,
78	.init_late	= imx51_init_late,
79	.dt_compat	= imx51_dt_board_compat,
80MACHINE_END
81