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[openwrt.git] / target / linux / ixp4xx / patches-2.6.25 / 030-ixp4xx_fsg_board_support.patch
1 From: Rod Whitby <rod@whitby.id.au>
2 Subject: [PATCH] ixp4xx: Add support for the Freecom FSG-3 board (Patch #4874)
3
4 The Freecom-FSG3 is a small network-attached-storage device with the
5 following feature set:
6
7 * Intel IXP422
8 * 4MB Flash (ixp4xx flash driver)
9 * 64MB RAM
10 * 4 USB 2.0 host ports (ehci and ohci drivers)
11 * 1 WAN (eth1) and 3 LAN (eth0) ethernet ports
12 * Supported by the open source ixp4xx ethernet driver
13 * Via VT6421 disk controller (libata and sata-via drivers)
14 * Internal hard disk (PATA supported, SATA not yet supported)
15 * External SATA port (not yet supported)
16 * ISL1208 RTC chip
17 * Winbond 83782 temp sensor and fan controller
18 * MiniPCI slot
19
20 The ixp4xx_defconfig is also updated to support this device (the
21 leds-fsg driver is to be submitted separately via the leds tree after
22 this initial support is merged, as it depends on header gpio defines).
23
24 Signed-off-by: Rod Whitby <rod@whitby.id.au>
25
26 PATCH FOLLOWS
27 KernelVersion: v2.6.25-rc6-74-g264e3e8
28 ---
29
30 Updated to correct all issues found by RMK.
31
32 The front power button calls ctrl_alt_del() and the rear reset button
33 now calls machine_restart() directly.
34
35 arch/arm/configs/ixp4xx_defconfig | 9 +-
36 arch/arm/mach-ixp4xx/Kconfig | 9 +
37 arch/arm/mach-ixp4xx/Makefile | 2 +
38 arch/arm/mach-ixp4xx/fsg-pci.c | 71 ++++++++
39 arch/arm/mach-ixp4xx/fsg-setup.c | 276 ++++++++++++++++++++++++++++++++
40 include/asm-arm/arch-ixp4xx/fsg.h | 50 ++++++
41 include/asm-arm/arch-ixp4xx/hardware.h | 1 +
42 include/asm-arm/arch-ixp4xx/irqs.h | 7 +
43 8 files changed, 421 insertions(+), 4 deletions(-)
44 create mode 100644 arch/arm/mach-ixp4xx/fsg-pci.c
45 create mode 100644 arch/arm/mach-ixp4xx/fsg-setup.c
46 create mode 100644 include/asm-arm/arch-ixp4xx/fsg.h
47
48 --- a/arch/arm/configs/ixp4xx_defconfig
49 +++ b/arch/arm/configs/ixp4xx_defconfig
50 @@ -165,6 +165,7 @@
51 CONFIG_MACH_NAS100D=y
52 CONFIG_MACH_DSMG600=y
53 CONFIG_ARCH_IXDP4XX=y
54 +CONFIG_MACH_FSG=y
55 CONFIG_CPU_IXP46X=y
56 CONFIG_CPU_IXP43X=y
57 CONFIG_MACH_GTWX5715=y
58 @@ -770,7 +771,7 @@
59 # CONFIG_SATA_SIL24 is not set
60 # CONFIG_SATA_SIS is not set
61 # CONFIG_SATA_ULI is not set
62 -# CONFIG_SATA_VIA is not set
63 +CONFIG_SATA_VIA=y
64 # CONFIG_SATA_VITESSE is not set
65 # CONFIG_SATA_INIC162X is not set
66 # CONFIG_PATA_ALI is not set
67 @@ -1143,7 +1144,7 @@
68 # CONFIG_SENSORS_VIA686A is not set
69 # CONFIG_SENSORS_VT1211 is not set
70 # CONFIG_SENSORS_VT8231 is not set
71 -# CONFIG_SENSORS_W83781D is not set
72 +CONFIG_SENSORS_W83781D=y
73 # CONFIG_SENSORS_W83791D is not set
74 # CONFIG_SENSORS_W83792D is not set
75 # CONFIG_SENSORS_W83793 is not set
76 @@ -1334,8 +1335,8 @@
77 #
78 # LED drivers
79 #
80 -# CONFIG_LEDS_IXP4XX is not set
81 CONFIG_LEDS_GPIO=y
82 +CONFIG_LEDS_FSG=y
83
84 #
85 # LED Triggers
86 @@ -1367,7 +1368,7 @@
87 # CONFIG_RTC_DRV_DS1672 is not set
88 # CONFIG_RTC_DRV_MAX6900 is not set
89 # CONFIG_RTC_DRV_RS5C372 is not set
90 -# CONFIG_RTC_DRV_ISL1208 is not set
91 +CONFIG_RTC_DRV_ISL1208=y
92 CONFIG_RTC_DRV_X1205=y
93 CONFIG_RTC_DRV_PCF8563=y
94 # CONFIG_RTC_DRV_PCF8583 is not set
95 --- a/arch/arm/mach-ixp4xx/Kconfig
96 +++ b/arch/arm/mach-ixp4xx/Kconfig
97 @@ -125,6 +125,15 @@
98 depends on ARCH_IXDP425 || MACH_IXDP465 || MACH_KIXRP435
99 default y
100
101 +config MACH_FSG
102 + bool
103 + prompt "Freecom FSG-3"
104 + select PCI
105 + help
106 + Say 'Y' here if you want your kernel to support Freecom's
107 + FSG-3 device. For more information on this platform,
108 + see http://www.nslu2-linux.org/wiki/FSG3/HomePage
109 +
110 #
111 # Certain registers and IRQs are only enabled if supporting IXP465 CPUs
112 #
113 --- a/arch/arm/mach-ixp4xx/Makefile
114 +++ b/arch/arm/mach-ixp4xx/Makefile
115 @@ -15,6 +15,7 @@
116 obj-pci-$(CONFIG_MACH_DSMG600) += dsmg600-pci.o
117 obj-pci-$(CONFIG_MACH_GATEWAY7001) += gateway7001-pci.o
118 obj-pci-$(CONFIG_MACH_WG302V2) += wg302v2-pci.o
119 +obj-pci-$(CONFIG_MACH_FSG) += fsg-pci.o
120
121 obj-y += common.o
122
123 @@ -28,6 +29,7 @@
124 obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o
125 obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
126 obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o
127 +obj-$(CONFIG_MACH_FSG) += fsg-setup.o
128
129 obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
130 obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
131 --- /dev/null
132 +++ b/arch/arm/mach-ixp4xx/fsg-pci.c
133 @@ -0,0 +1,71 @@
134 +/*
135 + * arch/arch/mach-ixp4xx/fsg-pci.c
136 + *
137 + * FSG board-level PCI initialization
138 + *
139 + * Author: Rod Whitby <rod@whitby.id.au>
140 + * Maintainer: http://www.nslu2-linux.org/
141 + *
142 + * based on ixdp425-pci.c:
143 + * Copyright (C) 2002 Intel Corporation.
144 + * Copyright (C) 2003-2004 MontaVista Software, Inc.
145 + *
146 + * This program is free software; you can redistribute it and/or modify
147 + * it under the terms of the GNU General Public License version 2 as
148 + * published by the Free Software Foundation.
149 + *
150 + */
151 +
152 +#include <linux/pci.h>
153 +#include <linux/init.h>
154 +#include <linux/irq.h>
155 +
156 +#include <asm/mach/pci.h>
157 +#include <asm/mach-types.h>
158 +
159 +void __init fsg_pci_preinit(void)
160 +{
161 + set_irq_type(IRQ_FSG_PCI_INTA, IRQT_LOW);
162 + set_irq_type(IRQ_FSG_PCI_INTB, IRQT_LOW);
163 + set_irq_type(IRQ_FSG_PCI_INTC, IRQT_LOW);
164 +
165 + ixp4xx_pci_preinit();
166 +}
167 +
168 +static int __init fsg_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
169 +{
170 + static int pci_irq_table[FSG_PCI_IRQ_LINES] = {
171 + IRQ_FSG_PCI_INTC,
172 + IRQ_FSG_PCI_INTB,
173 + IRQ_FSG_PCI_INTA,
174 + };
175 +
176 + int irq = -1;
177 + slot = slot - 11;
178 +
179 + if (slot >= 1 && slot <= FSG_PCI_MAX_DEV &&
180 + pin >= 1 && pin <= FSG_PCI_IRQ_LINES)
181 + irq = pci_irq_table[(slot - 1)];
182 + printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n",
183 + __func__, slot, pin, irq);
184 +
185 + return irq;
186 +}
187 +
188 +struct hw_pci fsg_pci __initdata = {
189 + .nr_controllers = 1,
190 + .preinit = fsg_pci_preinit,
191 + .swizzle = pci_std_swizzle,
192 + .setup = ixp4xx_setup,
193 + .scan = ixp4xx_scan_bus,
194 + .map_irq = fsg_map_irq,
195 +};
196 +
197 +int __init fsg_pci_init(void)
198 +{
199 + if (machine_is_fsg())
200 + pci_common_init(&fsg_pci);
201 + return 0;
202 +}
203 +
204 +subsys_initcall(fsg_pci_init);
205 --- /dev/null
206 +++ b/arch/arm/mach-ixp4xx/fsg-setup.c
207 @@ -0,0 +1,276 @@
208 +/*
209 + * arch/arm/mach-ixp4xx/fsg-setup.c
210 + *
211 + * FSG board-setup
212 + *
213 + * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
214 + *
215 + * based on ixdp425-setup.c:
216 + * Copyright (C) 2003-2004 MontaVista Software, Inc.
217 + * based on nslu2-power.c
218 + * Copyright (C) 2005 Tower Technologies
219 + *
220 + * Author: Rod Whitby <rod@whitby.id.au>
221 + * Maintainers: http://www.nslu2-linux.org/
222 + *
223 + */
224 +
225 +#include <linux/if_ether.h>
226 +#include <linux/irq.h>
227 +#include <linux/serial.h>
228 +#include <linux/serial_8250.h>
229 +#include <linux/leds.h>
230 +#include <linux/reboot.h>
231 +#include <linux/i2c.h>
232 +#include <linux/i2c-gpio.h>
233 +
234 +#include <asm/mach-types.h>
235 +#include <asm/mach/arch.h>
236 +#include <asm/mach/flash.h>
237 +#include <asm/io.h>
238 +#include <asm/gpio.h>
239 +
240 +static struct flash_platform_data fsg_flash_data = {
241 + .map_name = "cfi_probe",
242 + .width = 2,
243 +};
244 +
245 +static struct resource fsg_flash_resource = {
246 + .flags = IORESOURCE_MEM,
247 +};
248 +
249 +static struct platform_device fsg_flash = {
250 + .name = "IXP4XX-Flash",
251 + .id = 0,
252 + .dev = {
253 + .platform_data = &fsg_flash_data,
254 + },
255 + .num_resources = 1,
256 + .resource = &fsg_flash_resource,
257 +};
258 +
259 +static struct i2c_gpio_platform_data fsg_i2c_gpio_data = {
260 + .sda_pin = FSG_SDA_PIN,
261 + .scl_pin = FSG_SCL_PIN,
262 +};
263 +
264 +static struct platform_device fsg_i2c_gpio = {
265 + .name = "i2c-gpio",
266 + .id = 0,
267 + .dev = {
268 + .platform_data = &fsg_i2c_gpio_data,
269 + },
270 +};
271 +
272 +static struct i2c_board_info __initdata fsg_i2c_board_info [] = {
273 + {
274 + I2C_BOARD_INFO("rtc-isl1208", 0x6f),
275 + },
276 +};
277 +
278 +static struct resource fsg_uart_resources[] = {
279 + {
280 + .start = IXP4XX_UART1_BASE_PHYS,
281 + .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
282 + .flags = IORESOURCE_MEM,
283 + },
284 + {
285 + .start = IXP4XX_UART2_BASE_PHYS,
286 + .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
287 + .flags = IORESOURCE_MEM,
288 + }
289 +};
290 +
291 +static struct plat_serial8250_port fsg_uart_data[] = {
292 + {
293 + .mapbase = IXP4XX_UART1_BASE_PHYS,
294 + .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
295 + .irq = IRQ_IXP4XX_UART1,
296 + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
297 + .iotype = UPIO_MEM,
298 + .regshift = 2,
299 + .uartclk = IXP4XX_UART_XTAL,
300 + },
301 + {
302 + .mapbase = IXP4XX_UART2_BASE_PHYS,
303 + .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
304 + .irq = IRQ_IXP4XX_UART2,
305 + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
306 + .iotype = UPIO_MEM,
307 + .regshift = 2,
308 + .uartclk = IXP4XX_UART_XTAL,
309 + },
310 + { }
311 +};
312 +
313 +static struct platform_device fsg_uart = {
314 + .name = "serial8250",
315 + .id = PLAT8250_DEV_PLATFORM,
316 + .dev = {
317 + .platform_data = fsg_uart_data,
318 + },
319 + .num_resources = ARRAY_SIZE(fsg_uart_resources),
320 + .resource = fsg_uart_resources,
321 +};
322 +
323 +static struct platform_device fsg_leds = {
324 + .name = "fsg-led",
325 + .id = -1,
326 +};
327 +
328 +/* Built-in 10/100 Ethernet MAC interfaces */
329 +static struct eth_plat_info fsg_plat_eth[] = {
330 + {
331 + .phy = 5,
332 + .rxq = 3,
333 + .txreadyq = 20,
334 + }, {
335 + .phy = 4,
336 + .rxq = 4,
337 + .txreadyq = 21,
338 + }
339 +};
340 +
341 +static struct platform_device fsg_eth[] = {
342 + {
343 + .name = "ixp4xx_eth",
344 + .id = IXP4XX_ETH_NPEB,
345 + .dev = {
346 + .platform_data = fsg_plat_eth,
347 + },
348 + }, {
349 + .name = "ixp4xx_eth",
350 + .id = IXP4XX_ETH_NPEC,
351 + .dev = {
352 + .platform_data = fsg_plat_eth + 1,
353 + },
354 + }
355 +};
356 +
357 +static struct platform_device *fsg_devices[] __initdata = {
358 + &fsg_i2c_gpio,
359 + &fsg_flash,
360 + &fsg_leds,
361 + &fsg_eth[0],
362 + &fsg_eth[1],
363 +};
364 +
365 +static irqreturn_t fsg_power_handler(int irq, void *dev_id)
366 +{
367 + /* Signal init to do the ctrlaltdel action, this will bypass init if
368 + * it hasn't started and do a kernel_restart.
369 + */
370 + ctrl_alt_del();
371 +
372 + return IRQ_HANDLED;
373 +}
374 +
375 +static irqreturn_t fsg_reset_handler(int irq, void *dev_id)
376 +{
377 + /* This is the paper-clip reset which does an emergency reboot. */
378 + printk(KERN_INFO "Restarting system.\n");
379 + machine_restart(NULL);
380 +
381 + /* This should never be reached. */
382 + return IRQ_HANDLED;
383 +}
384 +
385 +static void __init fsg_init(void)
386 +{
387 + DECLARE_MAC_BUF(mac_buf);
388 + uint8_t __iomem *f;
389 + int i;
390 +
391 + ixp4xx_sys_init();
392 +
393 + fsg_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
394 + fsg_flash_resource.end =
395 + IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
396 +
397 + *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
398 + *IXP4XX_EXP_CS1 = *IXP4XX_EXP_CS0;
399 +
400 + /* Configure CS2 for operation, 8bit and writable */
401 + *IXP4XX_EXP_CS2 = 0xbfff0002;
402 +
403 + i2c_register_board_info(0, fsg_i2c_board_info,
404 + ARRAY_SIZE(fsg_i2c_board_info));
405 +
406 + /* This is only useful on a modified machine, but it is valuable
407 + * to have it first in order to see debug messages, and so that
408 + * it does *not* get removed if platform_add_devices fails!
409 + */
410 + (void)platform_device_register(&fsg_uart);
411 +
412 + platform_add_devices(fsg_devices, ARRAY_SIZE(fsg_devices));
413 +
414 + if (request_irq(gpio_to_irq(FSG_RB_GPIO), &fsg_reset_handler,
415 + IRQF_DISABLED | IRQF_TRIGGER_LOW,
416 + "FSG reset button", NULL) < 0) {
417 +
418 + printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
419 + gpio_to_irq(FSG_RB_GPIO));
420 + }
421 +
422 + if (request_irq(gpio_to_irq(FSG_SB_GPIO), &fsg_power_handler,
423 + IRQF_DISABLED | IRQF_TRIGGER_LOW,
424 + "FSG power button", NULL) < 0) {
425 +
426 + printk(KERN_DEBUG "Power Button IRQ %d not available\n",
427 + gpio_to_irq(FSG_SB_GPIO));
428 + }
429 +
430 + /*
431 + * Map in a portion of the flash and read the MAC addresses.
432 + * Since it is stored in BE in the flash itself, we need to
433 + * byteswap it if we're in LE mode.
434 + */
435 + f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x400000);
436 + if (f) {
437 +#ifdef __ARMEB__
438 + for (i = 0; i < 6; i++) {
439 + fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
440 + fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
441 + }
442 +#else
443 +
444 + /*
445 + Endian-swapped reads from unaligned addresses are
446 + required to extract the two MACs from the big-endian
447 + Redboot config area in flash.
448 + */
449 +
450 + fsg_plat_eth[0].hwaddr[0] = readb(f + 0x3C0421);
451 + fsg_plat_eth[0].hwaddr[1] = readb(f + 0x3C0420);
452 + fsg_plat_eth[0].hwaddr[2] = readb(f + 0x3C0427);
453 + fsg_plat_eth[0].hwaddr[3] = readb(f + 0x3C0426);
454 + fsg_plat_eth[0].hwaddr[4] = readb(f + 0x3C0425);
455 + fsg_plat_eth[0].hwaddr[5] = readb(f + 0x3C0424);
456 +
457 + fsg_plat_eth[1].hwaddr[0] = readb(f + 0x3C0439);
458 + fsg_plat_eth[1].hwaddr[1] = readb(f + 0x3C043F);
459 + fsg_plat_eth[1].hwaddr[2] = readb(f + 0x3C043E);
460 + fsg_plat_eth[1].hwaddr[3] = readb(f + 0x3C043D);
461 + fsg_plat_eth[1].hwaddr[4] = readb(f + 0x3C043C);
462 + fsg_plat_eth[1].hwaddr[5] = readb(f + 0x3C0443);
463 +#endif
464 + iounmap(f);
465 + }
466 + printk(KERN_INFO "FSG: Using MAC address %s for port 0\n",
467 + print_mac(mac_buf, fsg_plat_eth[0].hwaddr));
468 + printk(KERN_INFO "FSG: Using MAC address %s for port 1\n",
469 + print_mac(mac_buf, fsg_plat_eth[1].hwaddr));
470 +
471 +}
472 +
473 +MACHINE_START(FSG, "Freecom FSG-3")
474 + /* Maintainer: www.nslu2-linux.org */
475 + .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
476 + .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
477 + .map_io = ixp4xx_map_io,
478 + .init_irq = ixp4xx_init_irq,
479 + .timer = &ixp4xx_timer,
480 + .boot_params = 0x0100,
481 + .init_machine = fsg_init,
482 +MACHINE_END
483 +
484 --- /dev/null
485 +++ b/include/asm-arm/arch-ixp4xx/fsg.h
486 @@ -0,0 +1,50 @@
487 +/*
488 + * include/asm-arm/arch-ixp4xx/fsg.h
489 + *
490 + * Freecom FSG-3 platform specific definitions
491 + *
492 + * Author: Rod Whitby <rod@whitby.id.au>
493 + * Author: Tomasz Chmielewski <mangoo@wpkg.org>
494 + * Maintainers: http://www.nslu2-linux.org
495 + *
496 + * Based on coyote.h by
497 + * Copyright 2004 (c) MontaVista, Software, Inc.
498 + *
499 + * This file is licensed under the terms of the GNU General Public
500 + * License version 2. This program is licensed "as is" without any
501 + * warranty of any kind, whether express or implied.
502 + */
503 +
504 +#ifndef __ASM_ARCH_HARDWARE_H__
505 +#error "Do not include this directly, instead #include <asm/hardware.h>"
506 +#endif
507 +
508 +#define FSG_SDA_PIN 12
509 +#define FSG_SCL_PIN 13
510 +
511 +/*
512 + * FSG PCI IRQs
513 + */
514 +#define FSG_PCI_MAX_DEV 3
515 +#define FSG_PCI_IRQ_LINES 3
516 +
517 +
518 +/* PCI controller GPIO to IRQ pin mappings */
519 +#define FSG_PCI_INTA_PIN 6
520 +#define FSG_PCI_INTB_PIN 7
521 +#define FSG_PCI_INTC_PIN 5
522 +
523 +/* Buttons */
524 +
525 +#define FSG_SB_GPIO 4 /* sync button */
526 +#define FSG_RB_GPIO 9 /* reset button */
527 +#define FSG_UB_GPIO 10 /* usb button */
528 +
529 +/* LEDs */
530 +
531 +#define FSG_LED_WLAN_BIT 0
532 +#define FSG_LED_WAN_BIT 1
533 +#define FSG_LED_SATA_BIT 2
534 +#define FSG_LED_USB_BIT 4
535 +#define FSG_LED_RING_BIT 5
536 +#define FSG_LED_SYNC_BIT 7
537 --- a/include/asm-arm/arch-ixp4xx/hardware.h
538 +++ b/include/asm-arm/arch-ixp4xx/hardware.h
539 @@ -45,5 +45,6 @@
540 #include "nslu2.h"
541 #include "nas100d.h"
542 #include "dsmg600.h"
543 +#include "fsg.h"
544
545 #endif /* _ASM_ARCH_HARDWARE_H */
546 --- a/include/asm-arm/arch-ixp4xx/irqs.h
547 +++ b/include/asm-arm/arch-ixp4xx/irqs.h
548 @@ -128,4 +128,11 @@
549 #define IRQ_DSMG600_PCI_INTE IRQ_IXP4XX_GPIO7
550 #define IRQ_DSMG600_PCI_INTF IRQ_IXP4XX_GPIO6
551
552 +/*
553 + * Freecom FSG-3 Board IRQs
554 + */
555 +#define IRQ_FSG_PCI_INTA IRQ_IXP4XX_GPIO6
556 +#define IRQ_FSG_PCI_INTB IRQ_IXP4XX_GPIO7
557 +#define IRQ_FSG_PCI_INTC IRQ_IXP4XX_GPIO5
558 +
559 #endif
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