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
collie_uart_set_mctrl(struct uart_port * port,u_int mctrl)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
collie_uart_get_mctrl(struct uart_port * port)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
collie_uart_probe(struct locomo_dev * dev)129 static int collie_uart_probe(struct locomo_dev *dev)
130 {
131 return 0;
132 }
133
collie_uart_remove(struct locomo_dev * dev)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
collie_uart_init(void)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
collie_set_vpp(int vpp)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
collie_init(void)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
collie_map_io(void)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
298