blob: 9e4024c4965f09a0ff24f71dc81df925bb93ed37 [file] [log] [blame]
Kevin Hilman7c6337e2007-04-30 19:37:19 +01001/*
2 * TI DaVinci EVM board support
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/dma-mapping.h>
15#include <linux/platform_device.h>
16#include <linux/mtd/mtd.h>
17#include <linux/mtd/partitions.h>
18#include <linux/mtd/physmap.h>
19
20#include <asm/setup.h>
21#include <asm/io.h>
22#include <asm/mach-types.h>
23#include <asm/hardware.h>
24
25#include <asm/mach/arch.h>
26#include <asm/mach/map.h>
27#include <asm/mach/flash.h>
28
29#include <asm/arch/common.h>
30
31/* other misc. init functions */
32void __init davinci_psc_init(void);
33void __init davinci_irq_init(void);
34void __init davinci_map_common_io(void);
Vladimir Barinov3e062b02007-06-05 16:36:55 +010035void __init davinci_init_common_hw(void);
Kevin Hilman7c6337e2007-04-30 19:37:19 +010036
37/* NOR Flash base address set to CS0 by default */
38#define NOR_FLASH_PHYS 0x02000000
39
40static struct mtd_partition davinci_evm_partitions[] = {
41 /* bootloader (U-Boot, etc) in first 4 sectors */
42 {
43 .name = "bootloader",
44 .offset = 0,
45 .size = 4 * SZ_64K,
46 .mask_flags = MTD_WRITEABLE, /* force read-only */
47 },
48 /* bootloader params in the next 1 sectors */
49 {
50 .name = "params",
51 .offset = MTDPART_OFS_APPEND,
52 .size = SZ_64K,
53 .mask_flags = 0,
54 },
55 /* kernel */
56 {
57 .name = "kernel",
58 .offset = MTDPART_OFS_APPEND,
59 .size = SZ_2M,
60 .mask_flags = 0
61 },
62 /* file system */
63 {
64 .name = "filesystem",
65 .offset = MTDPART_OFS_APPEND,
66 .size = MTDPART_SIZ_FULL,
67 .mask_flags = 0
68 }
69};
70
71static struct physmap_flash_data davinci_evm_flash_data = {
72 .width = 2,
73 .parts = davinci_evm_partitions,
74 .nr_parts = ARRAY_SIZE(davinci_evm_partitions),
75};
76
77/* NOTE: CFI probe will correctly detect flash part as 32M, but EMIF
78 * limits addresses to 16M, so using addresses past 16M will wrap */
79static struct resource davinci_evm_flash_resource = {
80 .start = NOR_FLASH_PHYS,
81 .end = NOR_FLASH_PHYS + SZ_16M - 1,
82 .flags = IORESOURCE_MEM,
83};
84
85static struct platform_device davinci_evm_flash_device = {
86 .name = "physmap-flash",
87 .id = 0,
88 .dev = {
89 .platform_data = &davinci_evm_flash_data,
90 },
91 .num_resources = 1,
92 .resource = &davinci_evm_flash_resource,
93};
94
95static struct platform_device *davinci_evm_devices[] __initdata = {
96 &davinci_evm_flash_device,
97};
98
99static void __init
100davinci_evm_map_io(void)
101{
102 davinci_map_common_io();
103}
104
105static __init void davinci_evm_init(void)
106{
107 davinci_psc_init();
108
109#if defined(CONFIG_BLK_DEV_DAVINCI) || defined(CONFIG_BLK_DEV_DAVINCI_MODULE)
110 printk(KERN_WARNING "WARNING: both IDE and NOR flash are enabled, "
111 "but share pins.\n\t Disable IDE for NOR support.\n");
112#endif
113
114 platform_add_devices(davinci_evm_devices,
115 ARRAY_SIZE(davinci_evm_devices));
116}
117
118static __init void davinci_evm_irq_init(void)
119{
Vladimir Barinov3e062b02007-06-05 16:36:55 +0100120 davinci_init_common_hw();
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100121 davinci_irq_init();
122}
123
124MACHINE_START(DAVINCI_EVM, "DaVinci EVM")
125 /* Maintainer: MontaVista Software <source@mvista.com> */
126 .phys_io = IO_PHYS,
127 .io_pg_offst = (io_p2v(IO_PHYS) >> 18) & 0xfffc,
128 .boot_params = (DAVINCI_DDR_BASE + 0x100),
129 .map_io = davinci_evm_map_io,
130 .init_irq = davinci_evm_irq_init,
131 .timer = &davinci_timer,
132 .init_machine = davinci_evm_init,
133MACHINE_END