Merge master.kernel.org:/home/rmk/linux-2.6-arm
[linux-2.6] / arch / arm / mach-sa1100 / collie.c
1 /*
2  * linux/arch/arm/mach-sa1100/collie.c
3  *
4  * May be copied or modified under the terms of the GNU General Public
5  * License.  See linux/COPYING for more information.
6  *
7  * This file contains all Collie-specific tweaks.
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13  * ChangeLog:
14  *  2006 Pavel Machek <pavel@suse.cz>
15  *  03-06-2004 John Lenz <lenz@cs.wisc.edu>
16  *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
17  *  04-16-2001 Lineo Japan,Inc. ...
18  */
19
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/tty.h>
23 #include <linux/delay.h>
24 #include <linux/platform_device.h>
25 #include <linux/mtd/mtd.h>
26 #include <linux/mtd/partitions.h>
27 #include <linux/timer.h>
28
29 #include <mach/hardware.h>
30 #include <asm/mach-types.h>
31 #include <asm/irq.h>
32 #include <asm/setup.h>
33 #include <mach/collie.h>
34
35 #include <asm/mach/arch.h>
36 #include <asm/mach/flash.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/serial_sa1100.h>
39
40 #include <asm/hardware/scoop.h>
41 #include <asm/mach/sharpsl_param.h>
42 #include <asm/hardware/locomo.h>
43 #include <mach/mcp.h>
44
45 #include "generic.h"
46
47 static struct resource collie_scoop_resources[] = {
48         [0] = {
49                 .start          = 0x40800000,
50                 .end            = 0x40800fff,
51                 .flags          = IORESOURCE_MEM,
52         },
53 };
54
55 static struct scoop_config collie_scoop_setup = {
56         .io_dir         = COLLIE_SCOOP_IO_DIR,
57         .io_out         = COLLIE_SCOOP_IO_OUT,
58 };
59
60 struct platform_device colliescoop_device = {
61         .name           = "sharp-scoop",
62         .id             = -1,
63         .dev            = {
64                 .platform_data  = &collie_scoop_setup,
65         },
66         .num_resources  = ARRAY_SIZE(collie_scoop_resources),
67         .resource       = collie_scoop_resources,
68 };
69
70 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
71         {
72         .dev            = &colliescoop_device.dev,
73         .irq            = COLLIE_IRQ_GPIO_CF_IRQ,
74         .cd_irq         = COLLIE_IRQ_GPIO_CF_CD,
75         .cd_irq_str     = "PCMCIA0 CD",
76         },
77 };
78
79 static struct scoop_pcmcia_config collie_pcmcia_config = {
80         .devs           = &collie_pcmcia_scoop[0],
81         .num_devs       = 1,
82 };
83
84 static struct mcp_plat_data collie_mcp_data = {
85         .mccr0          = MCCR0_ADM | MCCR0_ExtClk,
86         .sclk_rate      = 9216000,
87 };
88
89 #ifdef CONFIG_SHARP_LOCOMO
90 /*
91  * low-level UART features.
92  */
93 struct platform_device collie_locomo_device;
94
95 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
96 {
97         if (mctrl & TIOCM_RTS)
98                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
99         else
100                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
101
102         if (mctrl & TIOCM_DTR)
103                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
104         else
105                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
106 }
107
108 static u_int collie_uart_get_mctrl(struct uart_port *port)
109 {
110         int ret = TIOCM_CD;
111         unsigned int r;
112
113         r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
114         if (r == -ENODEV)
115                 return ret;
116         if (r & LOCOMO_GPIO_CTS)
117                 ret |= TIOCM_CTS;
118         if (r & LOCOMO_GPIO_DSR)
119                 ret |= TIOCM_DSR;
120
121         return ret;
122 }
123
124 static struct sa1100_port_fns collie_port_fns __initdata = {
125         .set_mctrl      = collie_uart_set_mctrl,
126         .get_mctrl      = collie_uart_get_mctrl,
127 };
128
129 static int collie_uart_probe(struct locomo_dev *dev)
130 {
131         return 0;
132 }
133
134 static int collie_uart_remove(struct locomo_dev *dev)
135 {
136         return 0;
137 }
138
139 static struct locomo_driver collie_uart_driver = {
140         .drv = {
141                 .name = "collie_uart",
142         },
143         .devid  = LOCOMO_DEVID_UART,
144         .probe  = collie_uart_probe,
145         .remove = collie_uart_remove,
146 };
147
148 static int __init collie_uart_init(void) {
149         return locomo_driver_register(&collie_uart_driver);
150 }
151 device_initcall(collie_uart_init);
152
153 #endif
154
155
156 static struct resource locomo_resources[] = {
157         [0] = {
158                 .start          = 0x40000000,
159                 .end            = 0x40001fff,
160                 .flags          = IORESOURCE_MEM,
161         },
162         [1] = {
163                 .start          = IRQ_GPIO25,
164                 .end            = IRQ_GPIO25,
165                 .flags          = IORESOURCE_IRQ,
166         },
167 };
168
169 struct platform_device collie_locomo_device = {
170         .name           = "locomo",
171         .id             = 0,
172         .num_resources  = ARRAY_SIZE(locomo_resources),
173         .resource       = locomo_resources,
174 };
175
176 static struct platform_device *devices[] __initdata = {
177         &collie_locomo_device,
178         &colliescoop_device,
179 };
180
181 static struct mtd_partition collie_partitions[] = {
182         {
183                 .name           = "bootloader",
184                 .offset         = 0,
185                 .size           = 0x000C0000,
186                 .mask_flags     = MTD_WRITEABLE
187         }, {
188                 .name           = "kernel",
189                 .offset         = MTDPART_OFS_APPEND,
190                 .size           = 0x00100000,
191         }, {
192                 .name           = "rootfs",
193                 .offset         = MTDPART_OFS_APPEND,
194                 .size           = 0x00e20000,
195         }
196 };
197
198 static void collie_set_vpp(int vpp)
199 {
200         write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
201         if (vpp)
202                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
203         else
204                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
205 }
206
207 static struct flash_platform_data collie_flash_data = {
208         .map_name       = "cfi_probe",
209         .set_vpp        = collie_set_vpp,
210         .parts          = collie_partitions,
211         .nr_parts       = ARRAY_SIZE(collie_partitions),
212 };
213
214 static struct resource collie_flash_resources[] = {
215         {
216                 .start  = SA1100_CS0_PHYS,
217                 .end    = SA1100_CS0_PHYS + SZ_32M - 1,
218                 .flags  = IORESOURCE_MEM,
219         }
220 };
221
222 static void __init collie_init(void)
223 {
224         int ret = 0;
225
226         /* cpu initialize */
227         GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
228                 GPIO_MCP_CLK | GPIO_32_768kHz;
229
230         GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
231                 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
232                 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
233                 COLLIE_GPIO_UCB1x00_RESET | COLLIE_GPIO_nMIC_ON |
234                 COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
235
236         PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
237                 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
238                 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
239
240         PWER = COLLIE_GPIO_AC_IN | COLLIE_GPIO_CO | COLLIE_GPIO_ON_KEY |
241                 COLLIE_GPIO_WAKEUP | COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
242
243         PGSR = COLLIE_GPIO_nREMOCON_ON;
244
245         PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
246
247         PCFR = PCFR_OPDE;
248
249
250         platform_scoop_config = &collie_pcmcia_config;
251
252         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
253         if (ret) {
254                 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
255         }
256
257         sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
258                               ARRAY_SIZE(collie_flash_resources));
259         sa11x0_set_mcp_data(&collie_mcp_data);
260
261         sharpsl_save_param();
262 }
263
264 static struct map_desc collie_io_desc[] __initdata = {
265         {       /* 32M main flash (cs0) */
266                 .virtual        = 0xe8000000,
267                 .pfn            = __phys_to_pfn(0x00000000),
268                 .length         = 0x02000000,
269                 .type           = MT_DEVICE
270         }, {    /* 32M boot flash (cs1) */
271                 .virtual        = 0xea000000,
272                 .pfn            = __phys_to_pfn(0x08000000),
273                 .length         = 0x02000000,
274                 .type           = MT_DEVICE
275         }
276 };
277
278 static void __init collie_map_io(void)
279 {
280         sa1100_map_io();
281         iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
282
283 #ifdef CONFIG_SHARP_LOCOMO
284         sa1100_register_uart_fns(&collie_port_fns);
285 #endif
286         sa1100_register_uart(0, 3);
287         sa1100_register_uart(1, 1);
288 }
289
290 MACHINE_START(COLLIE, "Sharp-Collie")
291         .phys_io        = 0x80000000,
292         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
293         .map_io         = collie_map_io,
294         .init_irq       = sa1100_init_irq,
295         .timer          = &sa1100_timer,
296         .init_machine   = collie_init,
297 MACHINE_END