2 * arch/arm/mach-ep93xx/ts72xx.c
3 * Technologic Systems TS72xx SBC support.
5 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or (at
10 * your option) any later version.
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
17 #include <linux/m48t86.h>
18 #include <linux/mtd/physmap.h>
20 #include <mach/hardware.h>
21 #include <mach/ts72xx.h>
23 #include <asm/mach-types.h>
24 #include <asm/mach/map.h>
25 #include <asm/mach/arch.h>
28 static struct map_desc ts72xx_io_desc
[] __initdata
= {
30 .virtual = TS72XX_MODEL_VIRT_BASE
,
31 .pfn
= __phys_to_pfn(TS72XX_MODEL_PHYS_BASE
),
32 .length
= TS72XX_MODEL_SIZE
,
35 .virtual = TS72XX_OPTIONS_VIRT_BASE
,
36 .pfn
= __phys_to_pfn(TS72XX_OPTIONS_PHYS_BASE
),
37 .length
= TS72XX_OPTIONS_SIZE
,
40 .virtual = TS72XX_OPTIONS2_VIRT_BASE
,
41 .pfn
= __phys_to_pfn(TS72XX_OPTIONS2_PHYS_BASE
),
42 .length
= TS72XX_OPTIONS2_SIZE
,
45 .virtual = TS72XX_RTC_INDEX_VIRT_BASE
,
46 .pfn
= __phys_to_pfn(TS72XX_RTC_INDEX_PHYS_BASE
),
47 .length
= TS72XX_RTC_INDEX_SIZE
,
50 .virtual = TS72XX_RTC_DATA_VIRT_BASE
,
51 .pfn
= __phys_to_pfn(TS72XX_RTC_DATA_PHYS_BASE
),
52 .length
= TS72XX_RTC_DATA_SIZE
,
57 static struct map_desc ts72xx_nand_io_desc
[] __initdata
= {
59 .virtual = TS72XX_NAND_DATA_VIRT_BASE
,
60 .pfn
= __phys_to_pfn(TS72XX_NAND1_DATA_PHYS_BASE
),
61 .length
= TS72XX_NAND_DATA_SIZE
,
64 .virtual = TS72XX_NAND_CONTROL_VIRT_BASE
,
65 .pfn
= __phys_to_pfn(TS72XX_NAND1_CONTROL_PHYS_BASE
),
66 .length
= TS72XX_NAND_CONTROL_SIZE
,
69 .virtual = TS72XX_NAND_BUSY_VIRT_BASE
,
70 .pfn
= __phys_to_pfn(TS72XX_NAND1_BUSY_PHYS_BASE
),
71 .length
= TS72XX_NAND_BUSY_SIZE
,
76 static struct map_desc ts72xx_alternate_nand_io_desc
[] __initdata
= {
78 .virtual = TS72XX_NAND_DATA_VIRT_BASE
,
79 .pfn
= __phys_to_pfn(TS72XX_NAND2_DATA_PHYS_BASE
),
80 .length
= TS72XX_NAND_DATA_SIZE
,
83 .virtual = TS72XX_NAND_CONTROL_VIRT_BASE
,
84 .pfn
= __phys_to_pfn(TS72XX_NAND2_CONTROL_PHYS_BASE
),
85 .length
= TS72XX_NAND_CONTROL_SIZE
,
88 .virtual = TS72XX_NAND_BUSY_VIRT_BASE
,
89 .pfn
= __phys_to_pfn(TS72XX_NAND2_BUSY_PHYS_BASE
),
90 .length
= TS72XX_NAND_BUSY_SIZE
,
95 static void __init
ts72xx_map_io(void)
98 iotable_init(ts72xx_io_desc
, ARRAY_SIZE(ts72xx_io_desc
));
101 * The TS-7200 has NOR flash, the other models have NAND flash.
103 if (!board_is_ts7200()) {
104 if (is_ts9420_installed()) {
105 iotable_init(ts72xx_alternate_nand_io_desc
,
106 ARRAY_SIZE(ts72xx_alternate_nand_io_desc
));
108 iotable_init(ts72xx_nand_io_desc
,
109 ARRAY_SIZE(ts72xx_nand_io_desc
));
114 static struct physmap_flash_data ts72xx_flash_data
= {
118 static struct resource ts72xx_flash_resource
= {
119 .start
= TS72XX_NOR_PHYS_BASE
,
120 .end
= TS72XX_NOR_PHYS_BASE
+ SZ_16M
- 1,
121 .flags
= IORESOURCE_MEM
,
124 static struct platform_device ts72xx_flash
= {
125 .name
= "physmap-flash",
128 .platform_data
= &ts72xx_flash_data
,
131 .resource
= &ts72xx_flash_resource
,
134 static unsigned char ts72xx_rtc_readbyte(unsigned long addr
)
136 __raw_writeb(addr
, TS72XX_RTC_INDEX_VIRT_BASE
);
137 return __raw_readb(TS72XX_RTC_DATA_VIRT_BASE
);
140 static void ts72xx_rtc_writebyte(unsigned char value
, unsigned long addr
)
142 __raw_writeb(addr
, TS72XX_RTC_INDEX_VIRT_BASE
);
143 __raw_writeb(value
, TS72XX_RTC_DATA_VIRT_BASE
);
146 static struct m48t86_ops ts72xx_rtc_ops
= {
147 .readbyte
= ts72xx_rtc_readbyte
,
148 .writebyte
= ts72xx_rtc_writebyte
,
151 static struct platform_device ts72xx_rtc_device
= {
152 .name
= "rtc-m48t86",
155 .platform_data
= &ts72xx_rtc_ops
,
160 static struct ep93xx_eth_data ts72xx_eth_data
= {
164 static void __init
ts72xx_init_machine(void)
166 ep93xx_init_devices();
167 if (board_is_ts7200())
168 platform_device_register(&ts72xx_flash
);
169 platform_device_register(&ts72xx_rtc_device
);
171 ep93xx_register_eth(&ts72xx_eth_data
, 1);
174 MACHINE_START(TS72XX
, "Technologic Systems TS-72xx SBC")
175 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
176 .phys_io
= EP93XX_APB_PHYS_BASE
,
177 .io_pg_offst
= ((EP93XX_APB_VIRT_BASE
) >> 18) & 0xfffc,
178 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
179 .map_io
= ts72xx_map_io
,
180 .init_irq
= ep93xx_init_irq
,
181 .timer
= &ep93xx_timer
,
182 .init_machine
= ts72xx_init_machine
,