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Herbert Valerio Riedel555a3652007-11-12 09:05:55 +01001/*
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -04002 * arch/arm/mach-orion5x/dns323-setup.c
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +01003 *
4 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
5 *
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +10006 * Support for HW Rev C1:
7 *
8 * Copyright (C) 2010 Benjamin Herrenschmidt <benh@kernel.crashing.org>
9 *
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010010 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU Lesser General Public License as
12 * published by the Free Software Foundation; either version 2 of the
13 * License, or (at your option) any later version.
14 *
15 */
Russell King2f8163b2011-07-26 10:53:52 +010016#include <linux/gpio.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010017#include <linux/kernel.h>
18#include <linux/init.h>
Erik Benadacf110522010-01-24 13:43:04 -080019#include <linux/delay.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010020#include <linux/platform_device.h>
21#include <linux/pci.h>
22#include <linux/irq.h>
23#include <linux/mtd/physmap.h>
24#include <linux/mv643xx_eth.h>
25#include <linux/leds.h>
26#include <linux/gpio_keys.h>
27#include <linux/input.h>
28#include <linux/i2c.h>
Matt Palmerf93e4152008-10-22 10:16:36 +020029#include <linux/ata_platform.h>
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +100030#include <linux/phy.h>
31#include <linux/marvell_phy.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010032#include <asm/mach-types.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010033#include <asm/mach/arch.h>
34#include <asm/mach/pci.h>
David Howells9f97da72012-03-28 18:30:01 +010035#include <asm/system_info.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010036#include <mach/orion5x.h>
Rob Herringce915742012-08-29 10:16:55 -050037#include <plat/orion-gpio.h>
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010038#include "common.h"
Lennert Buytenhek19cfd5c2008-05-10 23:25:46 +020039#include "mpp.h"
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010040
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +100041/* Rev A1 and B1 */
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010042#define DNS323_GPIO_LED_RIGHT_AMBER 1
43#define DNS323_GPIO_LED_LEFT_AMBER 2
Erik Benadacf110522010-01-24 13:43:04 -080044#define DNS323_GPIO_SYSTEM_UP 3
Laurie Bradshawb2a731a2010-02-10 16:10:43 +000045#define DNS323_GPIO_LED_POWER1 4
46#define DNS323_GPIO_LED_POWER2 5
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010047#define DNS323_GPIO_OVERTEMP 6
48#define DNS323_GPIO_RTC 7
49#define DNS323_GPIO_POWER_OFF 8
50#define DNS323_GPIO_KEY_POWER 9
51#define DNS323_GPIO_KEY_RESET 10
52
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +100053/* Rev C1 */
54#define DNS323C_GPIO_KEY_POWER 1
55#define DNS323C_GPIO_POWER_OFF 2
56#define DNS323C_GPIO_LED_RIGHT_AMBER 8
57#define DNS323C_GPIO_LED_LEFT_AMBER 9
58#define DNS323C_GPIO_LED_POWER 17
59#define DNS323C_GPIO_FAN_BIT1 18
60#define DNS323C_GPIO_FAN_BIT0 19
61
62/* Exposed to userspace, do not change */
63enum {
64 DNS323_REV_A1, /* 0 */
65 DNS323_REV_B1, /* 1 */
66 DNS323_REV_C1, /* 2 */
67};
68
69
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010070/****************************************************************************
71 * PCI setup
72 */
73
Ralf Baechled5341942011-06-10 15:30:21 +010074static int __init dns323_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010075{
Lennert Buytenhek92b913b2008-04-25 16:28:33 -040076 int irq;
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010077
Lennert Buytenhek92b913b2008-04-25 16:28:33 -040078 /*
79 * Check for devices with hard-wired IRQs.
80 */
Paul Gortmaker51667932011-08-01 12:42:14 -040081 irq = orion5x_pci_map_irq(dev, slot, pin);
Lennert Buytenhek92b913b2008-04-25 16:28:33 -040082 if (irq != -1)
83 return irq;
84
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010085 return -1;
86}
87
88static struct hw_pci dns323_pci __initdata = {
Lennert Buytenhekbbdf1c12008-05-15 10:31:14 +010089 .nr_controllers = 2,
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -040090 .setup = orion5x_pci_sys_setup,
91 .scan = orion5x_pci_sys_scan_bus,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +010092 .map_irq = dns323_pci_map_irq,
93};
94
95static int __init dns323_pci_init(void)
96{
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +100097 /* Rev B1 and C1 doesn't really use its PCI bus, and initialising PCI
Matt Palmerf93e4152008-10-22 10:16:36 +020098 * gets in the way of initialising the SATA controller.
99 */
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000100 if (machine_is_dns323() && system_rev == DNS323_REV_A1)
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100101 pci_common_init(&dns323_pci);
102
103 return 0;
104}
105
106subsys_initcall(dns323_pci_init);
107
108/****************************************************************************
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100109 * 8MiB NOR flash (Spansion S29GL064M90TFIR4)
110 *
111 * Layout as used by D-Link:
112 * 0x00000000-0x00010000 : "MTD1"
113 * 0x00010000-0x00020000 : "MTD2"
114 * 0x00020000-0x001a0000 : "Linux Kernel"
115 * 0x001a0000-0x007d0000 : "File System"
116 * 0x007d0000-0x00800000 : "u-boot"
117 */
118
119#define DNS323_NOR_BOOT_BASE 0xf4000000
120#define DNS323_NOR_BOOT_SIZE SZ_8M
121
122static struct mtd_partition dns323_partitions[] = {
123 {
124 .name = "MTD1",
125 .size = 0x00010000,
126 .offset = 0,
127 }, {
128 .name = "MTD2",
129 .size = 0x00010000,
130 .offset = 0x00010000,
131 }, {
132 .name = "Linux Kernel",
133 .size = 0x00180000,
134 .offset = 0x00020000,
135 }, {
136 .name = "File System",
137 .size = 0x00630000,
138 .offset = 0x001A0000,
139 }, {
140 .name = "u-boot",
141 .size = 0x00030000,
142 .offset = 0x007d0000,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200143 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100144};
145
146static struct physmap_flash_data dns323_nor_flash_data = {
147 .width = 1,
148 .parts = dns323_partitions,
149 .nr_parts = ARRAY_SIZE(dns323_partitions)
150};
151
152static struct resource dns323_nor_flash_resource = {
153 .flags = IORESOURCE_MEM,
154 .start = DNS323_NOR_BOOT_BASE,
155 .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1,
156};
157
158static struct platform_device dns323_nor_flash = {
159 .name = "physmap-flash",
160 .id = 0,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200161 .dev = {
162 .platform_data = &dns323_nor_flash_data,
163 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100164 .resource = &dns323_nor_flash_resource,
165 .num_resources = 1,
166};
167
168/****************************************************************************
Matt Palmera93f44c2008-10-19 08:15:09 +1100169 * Ethernet
170 */
171
172static struct mv643xx_eth_platform_data dns323_eth_data = {
173 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
174};
175
176/* dns323_parse_hex_*() taken from tsx09-common.c; should a common copy of these
177 * functions be kept somewhere?
178 */
179static int __init dns323_parse_hex_nibble(char n)
180{
181 if (n >= '0' && n <= '9')
182 return n - '0';
183
184 if (n >= 'A' && n <= 'F')
185 return n - 'A' + 10;
186
187 if (n >= 'a' && n <= 'f')
188 return n - 'a' + 10;
189
190 return -1;
191}
192
193static int __init dns323_parse_hex_byte(const char *b)
194{
195 int hi;
196 int lo;
197
198 hi = dns323_parse_hex_nibble(b[0]);
199 lo = dns323_parse_hex_nibble(b[1]);
200
201 if (hi < 0 || lo < 0)
202 return -1;
203
204 return (hi << 4) | lo;
205}
206
207static int __init dns323_read_mac_addr(void)
208{
209 u_int8_t addr[6];
210 int i;
211 char *mac_page;
212
213 /* MAC address is stored as a regular ol' string in /dev/mtdblock4
214 * (0x007d0000-0x00800000) starting at offset 196480 (0x2ff80).
215 */
216 mac_page = ioremap(DNS323_NOR_BOOT_BASE + 0x7d0000 + 196480, 1024);
217 if (!mac_page)
218 return -ENOMEM;
219
220 /* Sanity check the string we're looking at */
221 for (i = 0; i < 5; i++) {
222 if (*(mac_page + (i * 3) + 2) != ':') {
223 goto error_fail;
224 }
225 }
226
227 for (i = 0; i < 6; i++) {
228 int byte;
229
230 byte = dns323_parse_hex_byte(mac_page + (i * 3));
231 if (byte < 0) {
232 goto error_fail;
233 }
234
235 addr[i] = byte;
236 }
237
238 iounmap(mac_page);
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000239 printk("DNS-323: Found ethernet MAC address: ");
Matt Palmera93f44c2008-10-19 08:15:09 +1100240 for (i = 0; i < 6; i++)
241 printk("%.2x%s", addr[i], (i < 5) ? ":" : ".\n");
242
243 memcpy(dns323_eth_data.mac_addr, addr, 6);
244
245 return 0;
246
247error_fail:
248 iounmap(mac_page);
249 return -EINVAL;
250}
251
252/****************************************************************************
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100253 * GPIO LEDs (simple - doesn't use hardware blinking support)
254 */
255
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000256static struct gpio_led dns323ab_leds[] = {
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100257 {
258 .name = "power:blue",
Laurie Bradshawb2a731a2010-02-10 16:10:43 +0000259 .gpio = DNS323_GPIO_LED_POWER2,
Martin Michlmayrf8e00532010-03-26 11:20:00 +0100260 .default_trigger = "default-on",
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100261 }, {
262 .name = "right:amber",
263 .gpio = DNS323_GPIO_LED_RIGHT_AMBER,
264 .active_low = 1,
265 }, {
266 .name = "left:amber",
267 .gpio = DNS323_GPIO_LED_LEFT_AMBER,
268 .active_low = 1,
269 },
270};
271
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000272
273static struct gpio_led dns323c_leds[] = {
274 {
275 .name = "power:blue",
276 .gpio = DNS323C_GPIO_LED_POWER,
277 .default_trigger = "timer",
278 .active_low = 1,
279 }, {
280 .name = "right:amber",
281 .gpio = DNS323C_GPIO_LED_RIGHT_AMBER,
282 .active_low = 1,
283 }, {
284 .name = "left:amber",
285 .gpio = DNS323C_GPIO_LED_LEFT_AMBER,
286 .active_low = 1,
287 },
288};
289
290
291static struct gpio_led_platform_data dns323ab_led_data = {
292 .num_leds = ARRAY_SIZE(dns323ab_leds),
293 .leds = dns323ab_leds,
Arnaud Patard (Rtp)ff3e6602012-04-18 23:16:40 +0200294 .gpio_blink_set = orion_gpio_led_blink_set,
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000295};
296
297static struct gpio_led_platform_data dns323c_led_data = {
298 .num_leds = ARRAY_SIZE(dns323c_leds),
299 .leds = dns323c_leds,
Arnaud Patard (Rtp)ff3e6602012-04-18 23:16:40 +0200300 .gpio_blink_set = orion_gpio_led_blink_set,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100301};
302
303static struct platform_device dns323_gpio_leds = {
304 .name = "leds-gpio",
305 .id = -1,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200306 .dev = {
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000307 .platform_data = &dns323ab_led_data,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200308 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100309};
310
311/****************************************************************************
312 * GPIO Attached Keys
313 */
314
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000315static struct gpio_keys_button dns323ab_buttons[] = {
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100316 {
317 .code = KEY_RESTART,
318 .gpio = DNS323_GPIO_KEY_RESET,
319 .desc = "Reset Button",
320 .active_low = 1,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200321 }, {
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100322 .code = KEY_POWER,
323 .gpio = DNS323_GPIO_KEY_POWER,
324 .desc = "Power Button",
325 .active_low = 1,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200326 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100327};
328
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000329static struct gpio_keys_platform_data dns323ab_button_data = {
330 .buttons = dns323ab_buttons,
331 .nbuttons = ARRAY_SIZE(dns323ab_buttons),
332};
333
334static struct gpio_keys_button dns323c_buttons[] = {
335 {
336 .code = KEY_POWER,
337 .gpio = DNS323C_GPIO_KEY_POWER,
338 .desc = "Power Button",
339 .active_low = 1,
340 },
341};
342
343static struct gpio_keys_platform_data dns323c_button_data = {
344 .buttons = dns323c_buttons,
345 .nbuttons = ARRAY_SIZE(dns323c_buttons),
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100346};
347
348static struct platform_device dns323_button_device = {
349 .name = "gpio-keys",
350 .id = -1,
351 .num_resources = 0,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200352 .dev = {
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000353 .platform_data = &dns323ab_button_data,
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200354 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100355};
356
Matt Palmerf93e4152008-10-22 10:16:36 +0200357/*****************************************************************************
358 * SATA
359 */
360static struct mv_sata_platform_data dns323_sata_data = {
361 .n_ports = 2,
362};
363
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100364/****************************************************************************
365 * General Setup
366 */
Andrew Lunn554cdae2011-05-15 13:32:53 +0200367static unsigned int dns323a_mpp_modes[] __initdata = {
368 MPP0_PCIE_RST_OUTn,
369 MPP1_GPIO, /* right amber LED (sata ch0) */
370 MPP2_GPIO, /* left amber LED (sata ch1) */
371 MPP3_UNUSED,
372 MPP4_GPIO, /* power button LED */
373 MPP5_GPIO, /* power button LED */
374 MPP6_GPIO, /* GMT G751-2f overtemp */
375 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */
376 MPP8_GPIO, /* triggers power off */
377 MPP9_GPIO, /* power button switch */
378 MPP10_GPIO, /* reset button switch */
379 MPP11_UNUSED,
380 MPP12_UNUSED,
381 MPP13_UNUSED,
382 MPP14_UNUSED,
383 MPP15_UNUSED,
384 MPP16_UNUSED,
385 MPP17_UNUSED,
386 MPP18_UNUSED,
387 MPP19_UNUSED,
388 0,
Lennert Buytenhek19cfd5c2008-05-10 23:25:46 +0200389};
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100390
Andrew Lunn554cdae2011-05-15 13:32:53 +0200391static unsigned int dns323b_mpp_modes[] __initdata = {
392 MPP0_UNUSED,
393 MPP1_GPIO, /* right amber LED (sata ch0) */
394 MPP2_GPIO, /* left amber LED (sata ch1) */
395 MPP3_GPIO, /* system up flag */
396 MPP4_GPIO, /* power button LED */
397 MPP5_GPIO, /* power button LED */
398 MPP6_GPIO, /* GMT G751-2f overtemp */
399 MPP7_GPIO, /* M41T80 nIRQ/OUT/SQW */
400 MPP8_GPIO, /* triggers power off */
401 MPP9_GPIO, /* power button switch */
402 MPP10_GPIO, /* reset button switch */
403 MPP11_UNUSED,
404 MPP12_SATA_LED,
405 MPP13_SATA_LED,
406 MPP14_SATA_LED,
407 MPP15_SATA_LED,
408 MPP16_UNUSED,
409 MPP17_UNUSED,
410 MPP18_UNUSED,
411 MPP19_UNUSED,
412 0,
Matt Palmerf93e4152008-10-22 10:16:36 +0200413};
414
Andrew Lunn554cdae2011-05-15 13:32:53 +0200415static unsigned int dns323c_mpp_modes[] __initdata = {
416 MPP0_GPIO, /* ? input */
417 MPP1_GPIO, /* input power switch (0 = pressed) */
418 MPP2_GPIO, /* output power off */
419 MPP3_UNUSED, /* ? output */
420 MPP4_UNUSED, /* ? output */
421 MPP5_UNUSED, /* ? output */
422 MPP6_UNUSED, /* ? output */
423 MPP7_UNUSED, /* ? output */
424 MPP8_GPIO, /* i/o right amber LED */
425 MPP9_GPIO, /* i/o left amber LED */
426 MPP10_GPIO, /* input */
427 MPP11_UNUSED,
428 MPP12_SATA_LED,
429 MPP13_SATA_LED,
430 MPP14_SATA_LED,
431 MPP15_SATA_LED,
432 MPP16_UNUSED,
433 MPP17_GPIO, /* power button LED */
434 MPP18_GPIO, /* fan speed bit 0 */
435 MPP19_GPIO, /* fan speed bit 1 */
436 0,
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000437};
438
439/* Rev C1 Fan speed notes:
440 *
441 * The fan is controlled by 2 GPIOs on this board. The settings
442 * of the bits is as follow:
443 *
444 * GPIO 18 GPIO 19 Fan
445 *
446 * 0 0 stopped
447 * 0 1 low speed
448 * 1 0 high speed
449 * 1 1 don't do that (*)
450 *
451 * (*) I think the two bits control two feed-in resistors into a fixed
452 * PWN circuit, setting both bits will basically go a 'bit' faster
453 * than high speed, but d-link doesn't do it and you may get out of
454 * HW spec so don't do it.
455 */
456
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100457/*
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000458 * On the DNS-323 A1 and B1 the following devices are attached via I2C:
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100459 *
460 * i2c addr | chip | description
461 * 0x3e | GMT G760Af | fan speed PWM controller
462 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
463 * 0x68 | ST M41T80 | RTC w/ alarm
464 */
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000465static struct i2c_board_info __initdata dns323ab_i2c_devices[] = {
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100466 {
467 I2C_BOARD_INFO("g760a", 0x3e),
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200468 }, {
Martin Michlmayrc0fe8192008-08-12 12:50:14 +0300469 I2C_BOARD_INFO("lm75", 0x48),
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200470 }, {
Jean Delvare3760f732008-04-29 23:11:40 +0200471 I2C_BOARD_INFO("m41t80", 0x68),
Lennert Buytenheke7068ad2008-05-10 16:30:01 +0200472 },
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100473};
474
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000475/*
476 * On the DNS-323 C1 the following devices are attached via I2C:
477 *
478 * i2c addr | chip | description
479 * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible)
480 * 0x68 | ST M41T80 | RTC w/ alarm
481 */
482static struct i2c_board_info __initdata dns323c_i2c_devices[] = {
483 {
484 I2C_BOARD_INFO("lm75", 0x48),
485 }, {
486 I2C_BOARD_INFO("m41t80", 0x68),
487 },
488};
489
Erik Benadacf110522010-01-24 13:43:04 -0800490/* DNS-323 rev. A specific power off method */
491static void dns323a_power_off(void)
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100492{
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000493 pr_info("DNS-323: Triggering power-off...\n");
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100494 gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
495}
496
Erik Benadacf110522010-01-24 13:43:04 -0800497/* DNS-323 rev B specific power off method */
498static void dns323b_power_off(void)
499{
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000500 pr_info("DNS-323: Triggering power-off...\n");
Erik Benadacf110522010-01-24 13:43:04 -0800501 /* Pin has to be changed to 1 and back to 0 to do actual power off. */
502 gpio_set_value(DNS323_GPIO_POWER_OFF, 1);
503 mdelay(100);
504 gpio_set_value(DNS323_GPIO_POWER_OFF, 0);
505}
506
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000507/* DNS-323 rev. C specific power off method */
508static void dns323c_power_off(void)
509{
510 pr_info("DNS-323: Triggering power-off...\n");
511 gpio_set_value(DNS323C_GPIO_POWER_OFF, 1);
512}
513
514static int dns323c_phy_fixup(struct phy_device *phy)
515{
516 phy->dev_flags |= MARVELL_PHY_M1118_DNS323_LEDS;
517
518 return 0;
519}
520
521static int __init dns323_identify_rev(void)
522{
523 u32 dev, rev, i, reg;
524
525 pr_debug("DNS-323: Identifying board ... \n");
526
527 /* Rev A1 has a 5181 */
528 orion5x_pcie_id(&dev, &rev);
529 if (dev == MV88F5181_DEV_ID) {
530 pr_debug("DNS-323: 5181 found, board is A1\n");
531 return DNS323_REV_A1;
532 }
533 pr_debug("DNS-323: 5182 found, board is B1 or C1, checking PHY...\n");
534
535 /* Rev B1 and C1 both have 5182, let's poke at the eth PHY. This is
536 * a bit gross but we want to do that without links into the eth
537 * driver so let's poke at it directly. We default to rev B1 in
538 * case the accesses fail
539 */
540
541#define ETH_SMI_REG (ORION5X_ETH_VIRT_BASE + 0x2000 + 0x004)
542#define SMI_BUSY 0x10000000
543#define SMI_READ_VALID 0x08000000
544#define SMI_OPCODE_READ 0x04000000
545#define SMI_OPCODE_WRITE 0x00000000
546
547 for (i = 0; i < 1000; i++) {
548 reg = readl(ETH_SMI_REG);
549 if (!(reg & SMI_BUSY))
550 break;
551 }
552 if (i >= 1000) {
553 pr_warning("DNS-323: Timeout accessing PHY, assuming rev B1\n");
554 return DNS323_REV_B1;
555 }
556 writel((3 << 21) /* phy ID reg */ |
557 (8 << 16) /* phy addr */ |
558 SMI_OPCODE_READ, ETH_SMI_REG);
559 for (i = 0; i < 1000; i++) {
560 reg = readl(ETH_SMI_REG);
561 if (reg & SMI_READ_VALID)
562 break;
563 }
564 if (i >= 1000) {
565 pr_warning("DNS-323: Timeout reading PHY, assuming rev B1\n");
566 return DNS323_REV_B1;
567 }
568 pr_debug("DNS-323: Ethernet PHY ID 0x%x\n", reg & 0xffff);
569
570 /* Note: the Marvell tools mask the ID with 0x3f0 before comparison
571 * but I don't see that making a difference here, at least with
572 * any known Marvell PHY ID
573 */
574 switch(reg & 0xfff0) {
575 case 0x0cc0: /* MV88E1111 */
576 return DNS323_REV_B1;
577 case 0x0e10: /* MV88E1118 */
578 return DNS323_REV_C1;
579 default:
580 pr_warning("DNS-323: Unknown PHY ID 0x%04x, assuming rev B1\n",
581 reg & 0xffff);
582 }
583 return DNS323_REV_B1;
584}
585
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100586static void __init dns323_init(void)
587{
588 /* Setup basic Orion functions. Need to be called early. */
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400589 orion5x_init();
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100590
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000591 /* Identify revision */
592 system_rev = dns323_identify_rev();
593 pr_info("DNS-323: Identified HW revision %c1\n", 'A' + system_rev);
594
Matt Palmerf93e4152008-10-22 10:16:36 +0200595 /* Just to be tricky, the 5182 has a completely different
596 * set of MPP modes to the 5181.
597 */
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000598 switch(system_rev) {
599 case DNS323_REV_A1:
600 orion5x_mpp_conf(dns323a_mpp_modes);
Matt Palmerf93e4152008-10-22 10:16:36 +0200601 writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000602 break;
603 case DNS323_REV_B1:
604 orion5x_mpp_conf(dns323b_mpp_modes);
605 break;
606 case DNS323_REV_C1:
607 orion5x_mpp_conf(dns323c_mpp_modes);
608 break;
Matt Palmerf93e4152008-10-22 10:16:36 +0200609 }
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100610
Lennert Buytenhek044f6c72008-04-22 05:37:12 +0200611 /* setup flash mapping
612 * CS3 holds a 8 MB Spansion S29GL064M90TFIR4
613 */
614 orion5x_setup_dev_boot_win(DNS323_NOR_BOOT_BASE, DNS323_NOR_BOOT_SIZE);
615 platform_device_register(&dns323_nor_flash);
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100616
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000617 /* Sort out LEDs, Buttons and i2c devices */
618 switch(system_rev) {
619 case DNS323_REV_A1:
620 /* The 5181 power LED is active low and requires
621 * DNS323_GPIO_LED_POWER1 to also be low.
622 */
623 dns323ab_leds[0].active_low = 1;
624 gpio_request(DNS323_GPIO_LED_POWER1, "Power Led Enable");
625 gpio_direction_output(DNS323_GPIO_LED_POWER1, 0);
626 /* Fall through */
627 case DNS323_REV_B1:
628 i2c_register_board_info(0, dns323ab_i2c_devices,
629 ARRAY_SIZE(dns323ab_i2c_devices));
630 break;
631 case DNS323_REV_C1:
632 /* Hookup LEDs & Buttons */
633 dns323_gpio_leds.dev.platform_data = &dns323c_led_data;
634 dns323_button_device.dev.platform_data = &dns323c_button_data;
635
636 /* Hookup i2c devices and fan driver */
637 i2c_register_board_info(0, dns323c_i2c_devices,
638 ARRAY_SIZE(dns323c_i2c_devices));
639 platform_device_register_simple("dns323c-fan", 0, NULL, 0);
640
641 /* Register fixup for the PHY LEDs */
642 phy_register_fixup_for_uid(MARVELL_PHY_ID_88E1118,
643 MARVELL_PHY_ID_MASK,
644 dns323c_phy_fixup);
Laurie Bradshawb2a731a2010-02-10 16:10:43 +0000645 }
646
Lennert Buytenhek044f6c72008-04-22 05:37:12 +0200647 platform_device_register(&dns323_gpio_leds);
Lennert Buytenhek044f6c72008-04-22 05:37:12 +0200648 platform_device_register(&dns323_button_device);
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100649
Matt Palmera93f44c2008-10-19 08:15:09 +1100650 /*
651 * Configure peripherals.
652 */
653 if (dns323_read_mac_addr() < 0)
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000654 printk("DNS-323: Failed to read MAC address\n");
Matt Palmera93f44c2008-10-19 08:15:09 +1100655 orion5x_ehci0_init();
656 orion5x_eth_init(&dns323_eth_data);
657 orion5x_i2c_init();
658 orion5x_uart0_init();
659
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000660 /* Remaining GPIOs */
661 switch(system_rev) {
662 case DNS323_REV_A1:
663 /* Poweroff GPIO */
664 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
665 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
666 pr_err("DNS-323: failed to setup power-off GPIO\n");
667 pm_power_off = dns323a_power_off;
668 break;
669 case DNS323_REV_B1:
670 /* 5182 built-in SATA init */
Matt Palmerf93e4152008-10-22 10:16:36 +0200671 orion5x_sata_init(&dns323_sata_data);
672
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000673 /* The DNS323 rev B1 has flag to indicate the system is up.
674 * Without this flag set, power LED will flash and cannot be
675 * controlled via leds-gpio.
676 */
677 if (gpio_request(DNS323_GPIO_SYSTEM_UP, "SYS_READY") == 0)
678 gpio_direction_output(DNS323_GPIO_SYSTEM_UP, 1);
Erik Benadacf110522010-01-24 13:43:04 -0800679
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000680 /* Poweroff GPIO */
681 if (gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0 ||
682 gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)
683 pr_err("DNS-323: failed to setup power-off GPIO\n");
Erik Benadacf110522010-01-24 13:43:04 -0800684 pm_power_off = dns323b_power_off;
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000685 break;
686 case DNS323_REV_C1:
687 /* 5182 built-in SATA init */
688 orion5x_sata_init(&dns323_sata_data);
689
690 /* Poweroff GPIO */
691 if (gpio_request(DNS323C_GPIO_POWER_OFF, "POWEROFF") != 0 ||
692 gpio_direction_output(DNS323C_GPIO_POWER_OFF, 0) != 0)
693 pr_err("DNS-323: failed to setup power-off GPIO\n");
694 pm_power_off = dns323c_power_off;
695
696 /* Now, -this- should theorically be done by the sata_mv driver
697 * once I figure out what's going on there. Maybe the behaviour
698 * of the LEDs should be somewhat passed via the platform_data.
699 * for now, just whack the register and make the LEDs happy
700 *
701 * Note: AFAIK, rev B1 needs the same treatement but I'll let
702 * somebody else test it.
703 */
Thomas Petazzoni3904a392012-09-11 14:27:21 +0200704 writel(0x5, ORION5X_SATA_VIRT_BASE + 0x2c);
Benjamin Herrenschmidt6e2daa42010-06-21 13:21:53 +1000705 break;
706 }
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100707}
708
709/* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */
710MACHINE_START(DNS323, "D-Link DNS-323")
711 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
Nicolas Pitre65aa1b12011-07-05 22:38:15 -0400712 .atag_offset = 0x100,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100713 .init_machine = dns323_init,
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400714 .map_io = orion5x_map_io,
Lennert Buytenhek4ee1f6b2010-10-15 16:50:26 +0200715 .init_early = orion5x_init_early,
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400716 .init_irq = orion5x_init_irq,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700717 .init_time = orion5x_timer_init,
Guennadi Liakhovetskibe73a342008-02-29 21:12:57 +0100718 .fixup = tag_fixup_mem32,
Russell King764cbcc22011-11-05 10:13:41 +0000719 .restart = orion5x_restart,
Herbert Valerio Riedel555a3652007-11-12 09:05:55 +0100720MACHINE_END