2 * linux/arch/arm/mach-sa1100/collie.c
4 * May be copied or modified under the terms of the GNU General Public
5 * License. See linux/COPYING for more information.
7 * This file contains all Collie-specific tweaks.
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.
14 * 2006 Pavel Machek <pavel@ucw.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. ...
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 #include <linux/gpio.h>
29 #include <linux/pda_power.h>
30 #include <linux/mfd/ucb1x00.h>
32 #include <mach/hardware.h>
33 #include <asm/mach-types.h>
36 #include <asm/setup.h>
37 #include <mach/collie.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/flash.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/serial_sa1100.h>
44 #include <asm/hardware/scoop.h>
45 #include <asm/mach/sharpsl_param.h>
46 #include <asm/hardware/locomo.h>
51 static struct resource collie_scoop_resources[] = {
55 .flags = IORESOURCE_MEM,
59 static struct scoop_config collie_scoop_setup = {
60 .io_dir = COLLIE_SCOOP_IO_DIR,
61 .io_out = COLLIE_SCOOP_IO_OUT,
62 .gpio_base = COLLIE_SCOOP_GPIO_BASE,
65 struct platform_device colliescoop_device = {
66 .name = "sharp-scoop",
69 .platform_data = &collie_scoop_setup,
71 .num_resources = ARRAY_SIZE(collie_scoop_resources),
72 .resource = collie_scoop_resources,
75 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
77 .dev = &colliescoop_device.dev,
78 .irq = COLLIE_IRQ_GPIO_CF_IRQ,
79 .cd_irq = COLLIE_IRQ_GPIO_CF_CD,
80 .cd_irq_str = "PCMCIA0 CD",
84 static struct scoop_pcmcia_config collie_pcmcia_config = {
85 .devs = &collie_pcmcia_scoop[0],
89 static struct ucb1x00_plat_data collie_ucb1x00_data = {
90 .gpio_base = COLLIE_TC35143_GPIO_BASE,
93 static struct mcp_plat_data collie_mcp_data = {
94 .mccr0 = MCCR0_ADM | MCCR0_ExtClk,
97 .codec_pdata = &collie_ucb1x00_data,
103 static int collie_power_init(struct device *dev)
105 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
109 ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
116 gpio_free(COLLIE_GPIO_AC_IN);
121 static void collie_power_exit(struct device *dev)
123 gpio_free(COLLIE_GPIO_AC_IN);
126 static int collie_power_ac_online(void)
128 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
131 static char *collie_ac_supplied_to[] = {
136 static struct pda_power_pdata collie_power_data = {
137 .init = collie_power_init,
138 .is_ac_online = collie_power_ac_online,
139 .exit = collie_power_exit,
140 .supplied_to = collie_ac_supplied_to,
141 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to),
144 static struct resource collie_power_resource[] = {
147 .flags = IORESOURCE_IRQ |
148 IORESOURCE_IRQ_HIGHEDGE |
149 IORESOURCE_IRQ_LOWEDGE,
153 static struct platform_device collie_power_device = {
156 .dev.platform_data = &collie_power_data,
157 .resource = collie_power_resource,
158 .num_resources = ARRAY_SIZE(collie_power_resource),
161 #ifdef CONFIG_SHARP_LOCOMO
163 * low-level UART features.
165 struct platform_device collie_locomo_device;
167 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
169 if (mctrl & TIOCM_RTS)
170 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
172 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
174 if (mctrl & TIOCM_DTR)
175 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
177 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
180 static u_int collie_uart_get_mctrl(struct uart_port *port)
185 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
188 if (r & LOCOMO_GPIO_CTS)
190 if (r & LOCOMO_GPIO_DSR)
196 static struct sa1100_port_fns collie_port_fns __initdata = {
197 .set_mctrl = collie_uart_set_mctrl,
198 .get_mctrl = collie_uart_get_mctrl,
201 static int collie_uart_probe(struct locomo_dev *dev)
206 static int collie_uart_remove(struct locomo_dev *dev)
211 static struct locomo_driver collie_uart_driver = {
213 .name = "collie_uart",
215 .devid = LOCOMO_DEVID_UART,
216 .probe = collie_uart_probe,
217 .remove = collie_uart_remove,
220 static int __init collie_uart_init(void)
222 return locomo_driver_register(&collie_uart_driver);
224 device_initcall(collie_uart_init);
229 static struct resource locomo_resources[] = {
233 .flags = IORESOURCE_MEM,
238 .flags = IORESOURCE_IRQ,
242 static struct locomo_platform_data locomo_info = {
243 .irq_base = IRQ_BOARD_START,
246 struct platform_device collie_locomo_device = {
250 .platform_data = &locomo_info,
252 .num_resources = ARRAY_SIZE(locomo_resources),
253 .resource = locomo_resources,
256 static struct platform_device *devices[] __initdata = {
257 &collie_locomo_device,
259 &collie_power_device,
262 static struct mtd_partition collie_partitions[] = {
264 .name = "bootloader",
267 .mask_flags = MTD_WRITEABLE
270 .offset = MTDPART_OFS_APPEND,
274 .offset = MTDPART_OFS_APPEND,
279 static int collie_flash_init(void)
281 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
285 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
287 gpio_free(COLLIE_GPIO_VPEN);
292 static void collie_set_vpp(int vpp)
294 gpio_set_value(COLLIE_GPIO_VPEN, vpp);
297 static void collie_flash_exit(void)
299 gpio_free(COLLIE_GPIO_VPEN);
302 static struct flash_platform_data collie_flash_data = {
303 .map_name = "cfi_probe",
304 .init = collie_flash_init,
305 .set_vpp = collie_set_vpp,
306 .exit = collie_flash_exit,
307 .parts = collie_partitions,
308 .nr_parts = ARRAY_SIZE(collie_partitions),
311 static struct resource collie_flash_resources[] = {
313 .start = SA1100_CS0_PHYS,
314 .end = SA1100_CS0_PHYS + SZ_32M - 1,
315 .flags = IORESOURCE_MEM,
319 static void __init collie_init(void)
324 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
325 GPIO_MCP_CLK | GPIO_32_768kHz;
327 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
328 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
329 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
330 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
331 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
333 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
334 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
335 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
337 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
338 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
340 PGSR = _COLLIE_GPIO_nREMOCON_ON;
342 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
346 GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
348 collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
349 collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
350 platform_scoop_config = &collie_pcmcia_config;
352 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
354 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
357 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
358 ARRAY_SIZE(collie_flash_resources));
361 * Setup the PPC unit correctly.
364 PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM;
366 PSDR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
367 PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM);
369 sa11x0_register_mcp(&collie_mcp_data);
371 sharpsl_save_param();
374 static struct map_desc collie_io_desc[] __initdata = {
375 { /* 32M main flash (cs0) */
376 .virtual = 0xe8000000,
377 .pfn = __phys_to_pfn(0x00000000),
378 .length = 0x02000000,
380 }, { /* 32M boot flash (cs1) */
381 .virtual = 0xea000000,
382 .pfn = __phys_to_pfn(0x08000000),
383 .length = 0x02000000,
388 static void __init collie_map_io(void)
391 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
393 #ifdef CONFIG_SHARP_LOCOMO
394 sa1100_register_uart_fns(&collie_port_fns);
396 sa1100_register_uart(0, 3);
397 sa1100_register_uart(1, 1);
400 MACHINE_START(COLLIE, "Sharp-Collie")
401 .map_io = collie_map_io,
402 .init_irq = sa1100_init_irq,
403 .timer = &sa1100_timer,
404 .init_machine = collie_init,
405 .restart = sa11x0_restart,