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>
31 #include <mach/hardware.h>
32 #include <asm/mach-types.h>
35 #include <asm/setup.h>
36 #include <mach/collie.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/flash.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/serial_sa1100.h>
43 #include <asm/hardware/scoop.h>
44 #include <asm/mach/sharpsl_param.h>
45 #include <asm/hardware/locomo.h>
50 static struct resource collie_scoop_resources[] = {
54 .flags = IORESOURCE_MEM,
58 static struct scoop_config collie_scoop_setup = {
59 .io_dir = COLLIE_SCOOP_IO_DIR,
60 .io_out = COLLIE_SCOOP_IO_OUT,
61 .gpio_base = COLLIE_SCOOP_GPIO_BASE,
64 struct platform_device colliescoop_device = {
65 .name = "sharp-scoop",
68 .platform_data = &collie_scoop_setup,
70 .num_resources = ARRAY_SIZE(collie_scoop_resources),
71 .resource = collie_scoop_resources,
74 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
76 .dev = &colliescoop_device.dev,
77 .irq = COLLIE_IRQ_GPIO_CF_IRQ,
78 .cd_irq = COLLIE_IRQ_GPIO_CF_CD,
79 .cd_irq_str = "PCMCIA0 CD",
83 static struct scoop_pcmcia_config collie_pcmcia_config = {
84 .devs = &collie_pcmcia_scoop[0],
88 static struct mcp_plat_data collie_mcp_data = {
89 .mccr0 = MCCR0_ADM | MCCR0_ExtClk,
91 .gpio_base = COLLIE_TC35143_GPIO_BASE,
97 static int collie_power_init(struct device *dev)
99 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
103 ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
110 gpio_free(COLLIE_GPIO_AC_IN);
115 static void collie_power_exit(struct device *dev)
117 gpio_free(COLLIE_GPIO_AC_IN);
120 static int collie_power_ac_online(void)
122 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
125 static char *collie_ac_supplied_to[] = {
130 static struct pda_power_pdata collie_power_data = {
131 .init = collie_power_init,
132 .is_ac_online = collie_power_ac_online,
133 .exit = collie_power_exit,
134 .supplied_to = collie_ac_supplied_to,
135 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to),
138 static struct resource collie_power_resource[] = {
141 .start = gpio_to_irq(COLLIE_GPIO_AC_IN),
142 .end = gpio_to_irq(COLLIE_GPIO_AC_IN),
143 .flags = IORESOURCE_IRQ |
144 IORESOURCE_IRQ_HIGHEDGE |
145 IORESOURCE_IRQ_LOWEDGE,
149 static struct platform_device collie_power_device = {
152 .dev.platform_data = &collie_power_data,
153 .resource = collie_power_resource,
154 .num_resources = ARRAY_SIZE(collie_power_resource),
157 #ifdef CONFIG_SHARP_LOCOMO
159 * low-level UART features.
161 struct platform_device collie_locomo_device;
163 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
165 if (mctrl & TIOCM_RTS)
166 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
168 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
170 if (mctrl & TIOCM_DTR)
171 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
173 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
176 static u_int collie_uart_get_mctrl(struct uart_port *port)
181 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
184 if (r & LOCOMO_GPIO_CTS)
186 if (r & LOCOMO_GPIO_DSR)
192 static struct sa1100_port_fns collie_port_fns __initdata = {
193 .set_mctrl = collie_uart_set_mctrl,
194 .get_mctrl = collie_uart_get_mctrl,
197 static int collie_uart_probe(struct locomo_dev *dev)
202 static int collie_uart_remove(struct locomo_dev *dev)
207 static struct locomo_driver collie_uart_driver = {
209 .name = "collie_uart",
211 .devid = LOCOMO_DEVID_UART,
212 .probe = collie_uart_probe,
213 .remove = collie_uart_remove,
216 static int __init collie_uart_init(void)
218 return locomo_driver_register(&collie_uart_driver);
220 device_initcall(collie_uart_init);
225 static struct resource locomo_resources[] = {
229 .flags = IORESOURCE_MEM,
234 .flags = IORESOURCE_IRQ,
238 static struct locomo_platform_data locomo_info = {
239 .irq_base = IRQ_BOARD_START,
242 struct platform_device collie_locomo_device = {
246 .platform_data = &locomo_info,
248 .num_resources = ARRAY_SIZE(locomo_resources),
249 .resource = locomo_resources,
252 static struct platform_device *devices[] __initdata = {
253 &collie_locomo_device,
255 &collie_power_device,
258 static struct mtd_partition collie_partitions[] = {
260 .name = "bootloader",
263 .mask_flags = MTD_WRITEABLE
266 .offset = MTDPART_OFS_APPEND,
270 .offset = MTDPART_OFS_APPEND,
275 static int collie_flash_init(void)
277 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
281 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
283 gpio_free(COLLIE_GPIO_VPEN);
288 static void collie_set_vpp(int vpp)
290 gpio_set_value(COLLIE_GPIO_VPEN, vpp);
293 static void collie_flash_exit(void)
295 gpio_free(COLLIE_GPIO_VPEN);
298 static struct flash_platform_data collie_flash_data = {
299 .map_name = "cfi_probe",
300 .init = collie_flash_init,
301 .set_vpp = collie_set_vpp,
302 .exit = collie_flash_exit,
303 .parts = collie_partitions,
304 .nr_parts = ARRAY_SIZE(collie_partitions),
307 static struct resource collie_flash_resources[] = {
309 .start = SA1100_CS0_PHYS,
310 .end = SA1100_CS0_PHYS + SZ_32M - 1,
311 .flags = IORESOURCE_MEM,
315 static void __init collie_init(void)
320 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
321 GPIO_MCP_CLK | GPIO_32_768kHz;
323 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
324 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
325 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
326 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
327 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
329 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
330 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
331 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
333 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
334 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
336 PGSR = _COLLIE_GPIO_nREMOCON_ON;
338 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
342 GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
345 platform_scoop_config = &collie_pcmcia_config;
347 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
349 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
352 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
353 ARRAY_SIZE(collie_flash_resources));
354 sa11x0_register_mcp(&collie_mcp_data);
356 sharpsl_save_param();
359 static struct map_desc collie_io_desc[] __initdata = {
360 { /* 32M main flash (cs0) */
361 .virtual = 0xe8000000,
362 .pfn = __phys_to_pfn(0x00000000),
363 .length = 0x02000000,
365 }, { /* 32M boot flash (cs1) */
366 .virtual = 0xea000000,
367 .pfn = __phys_to_pfn(0x08000000),
368 .length = 0x02000000,
373 static void __init collie_map_io(void)
376 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
378 #ifdef CONFIG_SHARP_LOCOMO
379 sa1100_register_uart_fns(&collie_port_fns);
381 sa1100_register_uart(0, 3);
382 sa1100_register_uart(1, 1);
385 MACHINE_START(COLLIE, "Sharp-Collie")
386 .map_io = collie_map_io,
387 .init_irq = sa1100_init_irq,
388 .timer = &sa1100_timer,
389 .init_machine = collie_init,
390 .restart = sa11x0_restart,