Pull bugzilla-5653 into release branch
[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/config.h>
21 #include <linux/init.h>
22 #include <linux/kernel.h>
23 #include <linux/tty.h>
24 #include <linux/delay.h>
25 #include <linux/platform_device.h>
26 #include <linux/mtd/mtd.h>
27 #include <linux/mtd/partitions.h>
28 #include <linux/timer.h>
29
30 #include <asm/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/irq.h>
33 #include <asm/setup.h>
34 #include <asm/arch/collie.h>
35
36 #include <asm/mach/arch.h>
37 #include <asm/mach/flash.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/serial_sa1100.h>
40
41 #include <asm/hardware/scoop.h>
42 #include <asm/mach/sharpsl_param.h>
43 #include <asm/hardware/locomo.h>
44 #include <asm/arch/mcp.h>
45
46 #include "generic.h"
47
48 static struct resource collie_scoop_resources[] = {
49         [0] = {
50                 .start          = 0x40800000,
51                 .end            = 0x40800fff,
52                 .flags          = IORESOURCE_MEM,
53         },
54 };
55
56 static struct scoop_config collie_scoop_setup = {
57         .io_dir         = COLLIE_SCOOP_IO_DIR,
58         .io_out         = COLLIE_SCOOP_IO_OUT,
59 };
60
61 struct platform_device colliescoop_device = {
62         .name           = "sharp-scoop",
63         .id             = -1,
64         .dev            = {
65                 .platform_data  = &collie_scoop_setup,
66         },
67         .num_resources  = ARRAY_SIZE(collie_scoop_resources),
68         .resource       = collie_scoop_resources,
69 };
70
71 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
72 {
73        .dev        = &colliescoop_device.dev,
74        .irq        = COLLIE_IRQ_GPIO_CF_IRQ,
75        .cd_irq     = COLLIE_IRQ_GPIO_CF_CD,
76        .cd_irq_str = "PCMCIA0 CD",
77 },
78 };
79
80 static struct scoop_pcmcia_config collie_pcmcia_config = {
81         .devs         = &collie_pcmcia_scoop[0],
82         .num_devs     = 1,
83 };
84
85
86 static struct mcp_plat_data collie_mcp_data = {
87         .mccr0          = MCCR0_ADM,
88         .sclk_rate      = 11981000,
89 };
90
91 #ifdef CONFIG_SHARP_LOCOMO
92 /*
93  * low-level UART features.
94  */
95 static struct locomo_dev *uart_dev = NULL;
96
97 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
98 {
99         if (!uart_dev) return;
100
101         if (mctrl & TIOCM_RTS)
102                 locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 0);
103         else
104                 locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 1);
105
106         if (mctrl & TIOCM_DTR)
107                 locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 0);
108         else
109                 locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 1);
110 }
111
112 static u_int collie_uart_get_mctrl(struct uart_port *port)
113 {
114         int ret = TIOCM_CD;
115         unsigned int r;
116         if (!uart_dev) return ret;
117
118         r = locomo_gpio_read_output(uart_dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
119         if (r & LOCOMO_GPIO_CTS)
120                 ret |= TIOCM_CTS;
121         if (r & LOCOMO_GPIO_DSR)
122                 ret |= TIOCM_DSR;
123
124         return ret;
125 }
126
127 static struct sa1100_port_fns collie_port_fns __initdata = {
128         .set_mctrl      = collie_uart_set_mctrl,
129         .get_mctrl      = collie_uart_get_mctrl,
130 };
131
132 static int collie_uart_probe(struct locomo_dev *dev)
133 {
134         uart_dev = dev;
135         return 0;
136 }
137
138 static int collie_uart_remove(struct locomo_dev *dev)
139 {
140         uart_dev = NULL;
141         return 0;
142 }
143
144 static struct locomo_driver collie_uart_driver = {
145         .drv = {
146                 .name = "collie_uart",
147         },
148         .devid  = LOCOMO_DEVID_UART,
149         .probe  = collie_uart_probe,
150         .remove = collie_uart_remove,
151 };
152
153 static int __init collie_uart_init(void) {
154         return locomo_driver_register(&collie_uart_driver);
155 }
156 device_initcall(collie_uart_init);
157
158 #endif
159
160
161 static struct resource locomo_resources[] = {
162         [0] = {
163                 .start          = 0x40000000,
164                 .end            = 0x40001fff,
165                 .flags          = IORESOURCE_MEM,
166         },
167         [1] = {
168                 .start          = IRQ_GPIO25,
169                 .end            = IRQ_GPIO25,
170                 .flags          = IORESOURCE_IRQ,
171         },
172 };
173
174 static struct platform_device locomo_device = {
175         .name           = "locomo",
176         .id             = 0,
177         .num_resources  = ARRAY_SIZE(locomo_resources),
178         .resource       = locomo_resources,
179 };
180
181 static struct platform_device *devices[] __initdata = {
182         &locomo_device,
183         &colliescoop_device,
184 };
185
186 static struct mtd_partition collie_partitions[] = {
187         {
188                 .name           = "bootloader",
189                 .offset         = 0,
190                 .size           = 0x000C0000,
191                 .mask_flags     = MTD_WRITEABLE
192         }, {
193                 .name           = "kernel",
194                 .offset         = MTDPART_OFS_APPEND,
195                 .size           = 0x00100000,
196         }, {
197                 .name           = "rootfs",
198                 .offset         = MTDPART_OFS_APPEND,
199                 .size           = 0x00e20000,
200         }
201 };
202
203 static void collie_set_vpp(int vpp)
204 {
205         write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
206         if (vpp)
207                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
208         else
209                 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
210 }
211
212 static struct flash_platform_data collie_flash_data = {
213         .map_name       = "cfi_probe",
214         .set_vpp        = collie_set_vpp,
215         .parts          = collie_partitions,
216         .nr_parts       = ARRAY_SIZE(collie_partitions),
217 };
218
219 static struct resource collie_flash_resources[] = {
220         {
221                 .start  = SA1100_CS0_PHYS,
222                 .end    = SA1100_CS0_PHYS + SZ_32M - 1,
223                 .flags  = IORESOURCE_MEM,
224         }
225 };
226
227 static void __init collie_init(void)
228 {
229         int ret = 0;
230
231         /* cpu initialize */
232         GAFR = ( GPIO_SSP_TXD | \
233                  GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
234                  GPIO_32_768kHz );
235
236         GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
237                  GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
238                  GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
239                  GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
240         GPLR = GPIO_GPIO18;
241
242         // PPC pin setting
243         PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
244                  PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
245                  PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
246
247         PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
248
249         GAFR |= GPIO_32_768kHz;
250         GPDR |= GPIO_32_768kHz;
251         TUCR  = TUCR_32_768kHz;
252
253         platform_scoop_config = &collie_pcmcia_config;
254
255         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
256         if (ret) {
257                 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
258         }
259
260         sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
261                               ARRAY_SIZE(collie_flash_resources));
262         sa11x0_set_mcp_data(&collie_mcp_data);
263
264         sharpsl_save_param();
265 }
266
267 static struct map_desc collie_io_desc[] __initdata = {
268         {       /* 32M main flash (cs0) */
269                 .virtual        = 0xe8000000,
270                 .pfn            = __phys_to_pfn(0x00000000),
271                 .length         = 0x02000000,
272                 .type           = MT_DEVICE
273         }, {    /* 32M boot flash (cs1) */
274                 .virtual        = 0xea000000,
275                 .pfn            = __phys_to_pfn(0x08000000),
276                 .length         = 0x02000000,
277                 .type           = MT_DEVICE
278         }
279 };
280
281 static void __init collie_map_io(void)
282 {
283         sa1100_map_io();
284         iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
285
286 #ifdef CONFIG_SHARP_LOCOMO
287         sa1100_register_uart_fns(&collie_port_fns);
288 #endif
289         sa1100_register_uart(0, 3);
290         sa1100_register_uart(1, 1);
291 }
292
293 MACHINE_START(COLLIE, "Sharp-Collie")
294         .phys_io        = 0x80000000,
295         .io_pg_offst    = ((0xf8000000) >> 18) & 0xfffc,
296         .map_io         = collie_map_io,
297         .init_irq       = sa1100_init_irq,
298         .timer          = &sa1100_timer,
299         .init_machine   = collie_init,
300 MACHINE_END