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Herbert Valerio Riedel555a3652007-11-12 09:05:55 +01001/*
2 * arch/arm/mach-orion/dns323-setup.c
3 *
4 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as
8 * published by the Free Software Foundation; either version 2 of the
9 * License, or (at your option) any later version.
10 *
11 */
12
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16#include <linux/pci.h>
17#include <linux/irq.h>
18#include <linux/mtd/physmap.h>
19#include <linux/mv643xx_eth.h>
20#include <linux/leds.h>
21#include <linux/gpio_keys.h>
22#include <linux/input.h>
23#include <linux/i2c.h>
24#include <asm/mach-types.h>
25#include <asm/gpio.h>
26#include <asm/mach/arch.h>
27#include <asm/mach/pci.h>
28#include <asm/arch/orion.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010029#include "common.h"
30
31#define DNS323_GPIO_LED_RIGHT_AMBER 1
32#define DNS323_GPIO_LED_LEFT_AMBER 2
33#define DNS323_GPIO_LED_POWER 5
34#define DNS323_GPIO_OVERTEMP 6
35#define DNS323_GPIO_RTC 7
36#define DNS323_GPIO_POWER_OFF 8
37#define DNS323_GPIO_KEY_POWER 9
38#define DNS323_GPIO_KEY_RESET 10
39
40/****************************************************************************
41 * PCI setup
42 */
43
44static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
45{
46 /* PCI-E */
47 if (dev->bus->number == orion_pcie_local_bus_nr())
48 return IRQ_ORION_PCIE0_INT;
49
50 pr_err("%s: requested mapping for unknown bus\n", __func__);
51
52 return -1;
53}
54
55static struct hw_pci dns323_pci __initdata = {
56 .nr_controllers = 1,
57 .swizzle = pci_std_swizzle,
58 .setup = orion_pci_sys_setup,
59 .scan = orion_pci_sys_scan_bus,
60 .map_irq = dns323_pci_map_irq,
61};
62
63static int __init dns323_pci_init(void)
64{
65 if (machine_is_dns323())
66 pci_common_init(&dns323_pci);
67
68 return 0;
69}
70
71subsys_initcall(dns323_pci_init);
72
73/****************************************************************************
74 * Ethernet
75 */
76
77static struct mv643xx_eth_platform_data dns323_eth_data = {
78 .phy_addr = 8,
79 .force_phy_addr = 1,
80};
81
82/****************************************************************************
83 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
84 *
85 * Layout as used by D-Link:
86 * 0x00000000-0x00010000 : "MTD1"
87 * 0x00010000-0x00020000 : "MTD2"
88 * 0x00020000-0x001a0000 : "Linux Kernel"
89 * 0x001a0000-0x007d0000 : "File System"
90 * 0x007d0000-0x00800000 : "u-boot"
91 */
92
93#define DNS323_NOR_BOOT_BASE 0xf4000000
94#define DNS323_NOR_BOOT_SIZE SZ_8M
95
96static struct mtd_partition dns323_partitions[] = {
97 {
98 .name = "MTD1",
99 .size = 0x00010000,
100 .offset = 0,
101 }, {
102 .name = "MTD2",
103 .size = 0x00010000,
104 .offset = 0x00010000,
105 }, {
106 .name = "Linux Kernel",
107 .size = 0x00180000,
108 .offset = 0x00020000,
109 }, {
110 .name = "File System",
111 .size = 0x00630000,
112 .offset = 0x001A0000,
113 }, {
114 .name = "u-boot",
115 .size = 0x00030000,
116 .offset = 0x007d0000,
117 }
118};
119
120static struct physmap_flash_data dns323_nor_flash_data = {
121 .width = 1,
122 .parts = dns323_partitions,
123 .nr_parts = ARRAY_SIZE(dns323_partitions)
124};
125
126static struct resource dns323_nor_flash_resource = {
127 .flags = IORESOURCE_MEM,
128 .start = DNS323_NOR_BOOT_BASE,
129 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
130};
131
132static struct platform_device dns323_nor_flash = {
133 .name = "physmap-flash",
134 .id = 0,
135 .dev = { .platform_data = &dns323_nor_flash_data, },
136 .resource = &dns323_nor_flash_resource,
137 .num_resources = 1,
138};
139
140/****************************************************************************
141 * GPIO LEDs (simple - doesn't use hardware blinking support)
142 */
143
144static struct gpio_led dns323_leds[] = {
145 {
146 .name = "power:blue",
147 .gpio = DNS323_GPIO_LED_POWER,
148 .active_low = 1,
149 }, {
150 .name = "right:amber",
151 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
152 .active_low = 1,
153 }, {
154 .name = "left:amber",
155 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
156 .active_low = 1,
157 },
158};
159
160static struct gpio_led_platform_data dns323_led_data = {
161 .num_leds = ARRAY_SIZE(dns323_leds),
162 .leds = dns323_leds,
163};
164
165static struct platform_device dns323_gpio_leds = {
166 .name = "leds-gpio",
167 .id = -1,
168 .dev = { .platform_data = &dns323_led_data, },
169};
170
171/****************************************************************************
172 * GPIO Attached Keys
173 */
174
175static struct gpio_keys_button dns323_buttons[] = {
176 {
177 .code = KEY_RESTART,
178 .gpio = DNS323_GPIO_KEY_RESET,
179 .desc = "Reset Button",
180 .active_low = 1,
181 },
182 {
183 .code = KEY_POWER,
184 .gpio = DNS323_GPIO_KEY_POWER,
185 .desc = "Power Button",
186 .active_low = 1,
187 }
188};
189
190static struct gpio_keys_platform_data dns323_button_data = {
191 .buttons = dns323_buttons,
192 .nbuttons = ARRAY_SIZE(dns323_buttons),
193};
194
195static struct platform_device dns323_button_device = {
196 .name = "gpio-keys",
197 .id = -1,
198 .num_resources = 0,
199 .dev = { .platform_data = &dns323_button_data, },
200};
201
202/****************************************************************************
203 * General Setup
204 */
205
206static struct platform_device *dns323_plat_devices[] __initdata = {
207 &dns323_nor_flash,
208 &dns323_gpio_leds,
209 &dns323_button_device,
210};
211
212/*
213 * On the DNS-323 the following devices are attached via I2C:
214 *
215 * i2c addr | chip | description
216 * 0x3e | GMT G760Af | fan speed PWM controller
217 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
218 * 0x68 | ST M41T80 | RTC w/ alarm
219 */
220static struct i2c_board_info __initdata dns323_i2c_devices[] = {
221 {
222 I2C_BOARD_INFO("g760a", 0x3e),
223 .type = "g760a",
224 },
225#if 0
226 /* this entry requires the new-style driver model lm75 driver,
227 * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */
228 {
229 I2C_BOARD_INFO("lm75", 0x48),
230 .type = "g751",
231 },
232#endif
233 {
234 I2C_BOARD_INFO("rtc-m41t80", 0x68),
235 .type = "m41t80",
236 }
237};
238
239/* DNS-323 specific power off method */
240static void dns323_power_off(void)
241{
242 pr_info("%s: triggering power-off...\n", __func__);
243 gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
244}
245
246static void __init dns323_init(void)
247{
248 /* Setup basic Orion functions. Need to be called early. */
249 orion_init();
250
251 /* setup flash mapping
252 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
253 */
Lennert Buytenhek98f79d12008-03-27 14:51:40 -0400254 orion_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100255
256 /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE
257 *
258 * Open a special address decode windows for the PCIE WA.
259 */
Lennert Buytenhek98f79d12008-03-27 14:51:40 -0400260 orion_setup_pcie_wa_win(ORION_PCIE_WA_PHYS_BASE, ORION_PCIE_WA_SIZE);
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100261
262 /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */
263 orion_write(MPP_0_7_CTRL, 0);
264 orion_write(MPP_8_15_CTRL, 0);
265 orion_write(MPP_16_19_CTRL, 0);
266 orion_write(MPP_DEV_CTRL, 0);
267
268 /* Define used GPIO pins
269
270 GPIO Map:
271
272 | 0 | | PEX_RST_OUT (not controlled by GPIO)
273 | 1 | Out | right amber LED (= sata ch0 LED) (low-active)
274 | 2 | Out | left amber LED (= sata ch1 LED) (low-active)
275 | 3 | Out | //unknown//
276 | 4 | Out | power button LED (low-active, together with pin #5)
277 | 5 | Out | power button LED (low-active, together with pin #4)
278 | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active)
279 | 7 | In | M41T80 nIRQ/OUT/SQW signal
280 | 8 | Out | triggers power off (high-active)
281 | 9 | In | power button switch (low-active)
282 | 10 | In | reset button switch (low-active)
283 | 11 | Out | //unknown//
284 | 12 | Out | //unknown//
285 | 13 | Out | //unknown//
286 | 14 | Out | //unknown//
287 | 15 | Out | //unknown//
288 */
289 orion_gpio_set_valid_pins(0x07f6);
290
291 /* register dns323 specific power-off method */
292 if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0)
293 || (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0))
294 pr_err("DNS323: failed to setup power-off GPIO\n");
295
296 pm_power_off = dns323_power_off;
297
298 /* register flash and other platform devices */
299 platform_add_devices(dns323_plat_devices,
300 ARRAY_SIZE(dns323_plat_devices));
301
302 i2c_register_board_info(0, dns323_i2c_devices,
303 ARRAY_SIZE(dns323_i2c_devices));
304
305 orion_eth_init(&dns323_eth_data);
306}
307
308/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
309MACHINE_START(DNS323, "D-Link DNS-323")
310 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
Lennert Buytenhek7f74c2c2008-02-07 21:55:17 +0100311 .phys_io = ORION_REGS_PHYS_BASE,
312 .io_pg_offst = ((ORION_REGS_VIRT_BASE) >> 18) & 0xFFFC,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100313 .boot_params = 0x00000100,
314 .init_machine = dns323_init,
315 .map_io = orion_map_io,
316 .init_irq = orion_init_irq,
317 .timer = &orion_timer,
Guennadi Liakhovetskibe73a342008-02-29 21:12:57 +0100318 .fixup = tag_fixup_mem32,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100319MACHINE_END