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@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. ...
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>
29 #include <asm/hardware.h>
30 #include <asm/mach-types.h>
32 #include <asm/setup.h>
33 #include <asm/arch/collie.h>
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>
40 #include <asm/hardware/scoop.h>
41 #include <asm/mach/sharpsl_param.h>
42 #include <asm/hardware/locomo.h>
43 #include <asm/arch/mcp.h>
47 static struct resource collie_scoop_resources[] = {
51 .flags = IORESOURCE_MEM,
55 static struct scoop_config collie_scoop_setup = {
56 .io_dir = COLLIE_SCOOP_IO_DIR,
57 .io_out = COLLIE_SCOOP_IO_OUT,
60 struct platform_device colliescoop_device = {
61 .name = "sharp-scoop",
64 .platform_data = &collie_scoop_setup,
66 .num_resources = ARRAY_SIZE(collie_scoop_resources),
67 .resource = collie_scoop_resources,
70 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
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",
79 static struct scoop_pcmcia_config collie_pcmcia_config = {
80 .devs = &collie_pcmcia_scoop[0],
85 static struct mcp_plat_data collie_mcp_data = {
86 .mccr0 = MCCR0_ADM | MCCR0_ExtClk,
90 #ifdef CONFIG_SHARP_LOCOMO
92 * low-level UART features.
94 static struct locomo_dev *uart_dev = NULL;
96 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
98 if (!uart_dev) return;
100 if (mctrl & TIOCM_RTS)
101 locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 0);
103 locomo_gpio_write(uart_dev, LOCOMO_GPIO_RTS, 1);
105 if (mctrl & TIOCM_DTR)
106 locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 0);
108 locomo_gpio_write(uart_dev, LOCOMO_GPIO_DTR, 1);
111 static u_int collie_uart_get_mctrl(struct uart_port *port)
115 if (!uart_dev) return ret;
117 r = locomo_gpio_read_output(uart_dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
118 if (r & LOCOMO_GPIO_CTS)
120 if (r & LOCOMO_GPIO_DSR)
126 static struct sa1100_port_fns collie_port_fns __initdata = {
127 .set_mctrl = collie_uart_set_mctrl,
128 .get_mctrl = collie_uart_get_mctrl,
131 static int collie_uart_probe(struct locomo_dev *dev)
137 static int collie_uart_remove(struct locomo_dev *dev)
143 static struct locomo_driver collie_uart_driver = {
145 .name = "collie_uart",
147 .devid = LOCOMO_DEVID_UART,
148 .probe = collie_uart_probe,
149 .remove = collie_uart_remove,
152 static int __init collie_uart_init(void) {
153 return locomo_driver_register(&collie_uart_driver);
155 device_initcall(collie_uart_init);
160 static struct resource locomo_resources[] = {
164 .flags = IORESOURCE_MEM,
169 .flags = IORESOURCE_IRQ,
173 static struct platform_device locomo_device = {
176 .num_resources = ARRAY_SIZE(locomo_resources),
177 .resource = locomo_resources,
180 static struct platform_device *devices[] __initdata = {
185 static struct mtd_partition collie_partitions[] = {
187 .name = "bootloader",
190 .mask_flags = MTD_WRITEABLE
193 .offset = MTDPART_OFS_APPEND,
197 .offset = MTDPART_OFS_APPEND,
202 static void collie_set_vpp(int vpp)
204 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPCR) | COLLIE_SCP_VPEN);
206 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) | COLLIE_SCP_VPEN);
208 write_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR, read_scoop_reg(&colliescoop_device.dev, SCOOP_GPWR) & ~COLLIE_SCP_VPEN);
211 static struct flash_platform_data collie_flash_data = {
212 .map_name = "cfi_probe",
213 .set_vpp = collie_set_vpp,
214 .parts = collie_partitions,
215 .nr_parts = ARRAY_SIZE(collie_partitions),
218 static struct resource collie_flash_resources[] = {
220 .start = SA1100_CS0_PHYS,
221 .end = SA1100_CS0_PHYS + SZ_32M - 1,
222 .flags = IORESOURCE_MEM,
226 static void __init collie_init(void)
231 GAFR = ( GPIO_SSP_TXD | \
232 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | GPIO_TIC_ACK | \
235 GPDR = ( GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | \
236 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | \
237 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | \
238 GPIO_SDLC_AAF | GPIO_UART_SCLK1 | GPIO_32_768kHz );
242 PPDR = ( PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | \
243 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | \
244 PPC_TXD1 | PPC_TXD2 | PPC_RXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM );
246 PSDR = ( PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4 );
248 GAFR |= GPIO_32_768kHz;
249 GPDR |= GPIO_32_768kHz;
250 TUCR = TUCR_32_768kHz;
252 platform_scoop_config = &collie_pcmcia_config;
254 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
256 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
259 sa11x0_set_flash_data(&collie_flash_data, collie_flash_resources,
260 ARRAY_SIZE(collie_flash_resources));
261 sa11x0_set_mcp_data(&collie_mcp_data);
263 sharpsl_save_param();
266 static struct map_desc collie_io_desc[] __initdata = {
267 { /* 32M main flash (cs0) */
268 .virtual = 0xe8000000,
269 .pfn = __phys_to_pfn(0x00000000),
270 .length = 0x02000000,
272 }, { /* 32M boot flash (cs1) */
273 .virtual = 0xea000000,
274 .pfn = __phys_to_pfn(0x08000000),
275 .length = 0x02000000,
280 static void __init collie_map_io(void)
283 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
285 #ifdef CONFIG_SHARP_LOCOMO
286 sa1100_register_uart_fns(&collie_port_fns);
288 sa1100_register_uart(0, 3);
289 sa1100_register_uart(1, 1);
292 MACHINE_START(COLLIE, "Sharp-Collie")
293 .phys_io = 0x80000000,
294 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc,
295 .map_io = collie_map_io,
296 .init_irq = sa1100_init_irq,
297 .timer = &sa1100_timer,
298 .init_machine = collie_init,