1 /*
2  * QNAP TS-409 Board Setup
3  *
4  * Maintainer: Sylver Bruneau <sylver.bruneau@gmail.com>
5  *
6  * Copyright (C) 2008  Sylver Bruneau <sylver.bruneau@gmail.com>
7  * Copyright (C) 2008  Martin Michlmayr <tbm@cyrius.com>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version
12  * 2 of the License, or (at your option) any later version.
13  */
14 #include <linux/gpio.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/pci.h>
19 #include <linux/irq.h>
20 #include <linux/mtd/physmap.h>
21 #include <linux/mv643xx_eth.h>
22 #include <linux/leds.h>
23 #include <linux/gpio_keys.h>
24 #include <linux/input.h>
25 #include <linux/i2c.h>
26 #include <linux/serial_reg.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/pci.h>
30 #include <mach/orion5x.h>
31 #include "common.h"
32 #include "mpp.h"
33 #include "tsx09-common.h"
34 
35 /*****************************************************************************
36  * QNAP TS-409 Info
37  ****************************************************************************/
38 
39 /*
40  * QNAP TS-409 hardware :
41  * - Marvell 88F5281-D0
42  * - Marvell 88SX7042 SATA controller (PCIe)
43  * - Marvell 88E1118 Gigabit Ethernet PHY
44  * - RTC S35390A (@0x30) on I2C bus
45  * - 8MB NOR flash
46  * - 256MB of DDR-2 RAM
47  */
48 
49 /*
50  * 8MB NOR flash Device bus boot chip select
51  */
52 
53 #define QNAP_TS409_NOR_BOOT_BASE 0xff800000
54 #define QNAP_TS409_NOR_BOOT_SIZE SZ_8M
55 
56 /****************************************************************************
57  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
58  *     partitions on the device because we want to keep compatibility with
59  *     existing QNAP firmware.
60  *
61  * Layout as used by QNAP:
62  *  [2] 0x00000000-0x00200000 : "Kernel"
63  *  [3] 0x00200000-0x00600000 : "RootFS1"
64  *  [4] 0x00600000-0x00700000 : "RootFS2"
65  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
66  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
67  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
68  ***************************************************************************/
69 static struct mtd_partition qnap_ts409_partitions[] = {
70 	{
71 		.name		= "U-Boot",
72 		.size		= 0x00080000,
73 		.offset		= 0x00780000,
74 		.mask_flags	= MTD_WRITEABLE,
75 	}, {
76 		.name		= "Kernel",
77 		.size		= 0x00200000,
78 		.offset		= 0,
79 	}, {
80 		.name		= "RootFS1",
81 		.size		= 0x00400000,
82 		.offset		= 0x00200000,
83 	}, {
84 		.name		= "RootFS2",
85 		.size		= 0x00100000,
86 		.offset		= 0x00600000,
87 	}, {
88 		.name		= "U-Boot Config",
89 		.size		= 0x00020000,
90 		.offset		= 0x00760000,
91 	}, {
92 		.name		= "NAS Config",
93 		.size		= 0x00060000,
94 		.offset		= 0x00700000,
95 		.mask_flags	= MTD_WRITEABLE,
96 	},
97 };
98 
99 static struct physmap_flash_data qnap_ts409_nor_flash_data = {
100 	.width		= 1,
101 	.parts		= qnap_ts409_partitions,
102 	.nr_parts	= ARRAY_SIZE(qnap_ts409_partitions)
103 };
104 
105 static struct resource qnap_ts409_nor_flash_resource = {
106 	.flags	= IORESOURCE_MEM,
107 	.start	= QNAP_TS409_NOR_BOOT_BASE,
108 	.end	= QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
109 };
110 
111 static struct platform_device qnap_ts409_nor_flash = {
112 	.name		= "physmap-flash",
113 	.id		= 0,
114 	.dev		= { .platform_data = &qnap_ts409_nor_flash_data, },
115 	.num_resources	= 1,
116 	.resource	= &qnap_ts409_nor_flash_resource,
117 };
118 
119 /*****************************************************************************
120  * PCI
121  ****************************************************************************/
122 
123 static int __init qnap_ts409_pci_map_irq(const struct pci_dev *dev, u8 slot,
124 	u8 pin)
125 {
126 	int irq;
127 
128 	/*
129 	 * Check for devices with hard-wired IRQs.
130 	 */
131 	irq = orion5x_pci_map_irq(dev, slot, pin);
132 	if (irq != -1)
133 		return irq;
134 
135 	/*
136 	 * PCI isn't used on the TS-409
137 	 */
138 	return -1;
139 }
140 
141 static struct hw_pci qnap_ts409_pci __initdata = {
142 	.nr_controllers	= 2,
143 	.swizzle	= pci_std_swizzle,
144 	.setup		= orion5x_pci_sys_setup,
145 	.scan		= orion5x_pci_sys_scan_bus,
146 	.map_irq	= qnap_ts409_pci_map_irq,
147 };
148 
149 static int __init qnap_ts409_pci_init(void)
150 {
151 	if (machine_is_ts409())
152 		pci_common_init(&qnap_ts409_pci);
153 
154 	return 0;
155 }
156 
157 subsys_initcall(qnap_ts409_pci_init);
158 
159 /*****************************************************************************
160  * RTC S35390A on I2C bus
161  ****************************************************************************/
162 
163 #define TS409_RTC_GPIO	10
164 
165 static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
166 	I2C_BOARD_INFO("s35390a", 0x30),
167 };
168 
169 /*****************************************************************************
170  * LEDs attached to GPIO
171  ****************************************************************************/
172 
173 static struct gpio_led ts409_led_pins[] = {
174 	{
175 		.name		= "ts409:red:sata1",
176 		.gpio		= 4,
177 		.active_low	= 1,
178 	}, {
179 		.name		= "ts409:red:sata2",
180 		.gpio		= 5,
181 		.active_low	= 1,
182 	}, {
183 		.name		= "ts409:red:sata3",
184 		.gpio		= 6,
185 		.active_low	= 1,
186 	}, {
187 		.name		= "ts409:red:sata4",
188 		.gpio		= 7,
189 		.active_low	= 1,
190 	},
191 };
192 
193 static struct gpio_led_platform_data ts409_led_data = {
194 	.leds		= ts409_led_pins,
195 	.num_leds	= ARRAY_SIZE(ts409_led_pins),
196 };
197 
198 static struct platform_device ts409_leds = {
199 	.name	= "leds-gpio",
200 	.id	= -1,
201 	.dev	= {
202 		.platform_data	= &ts409_led_data,
203 	},
204 };
205 
206 /****************************************************************************
207  * GPIO Attached Keys
208  *     Power button is attached to the PIC microcontroller
209  ****************************************************************************/
210 
211 #define QNAP_TS409_GPIO_KEY_RESET	14
212 #define QNAP_TS409_GPIO_KEY_MEDIA	15
213 
214 static struct gpio_keys_button qnap_ts409_buttons[] = {
215 	{
216 		.code		= KEY_RESTART,
217 		.gpio		= QNAP_TS409_GPIO_KEY_RESET,
218 		.desc		= "Reset Button",
219 		.active_low	= 1,
220 	}, {
221 		.code		= KEY_COPY,
222 		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
223 		.desc		= "USB Copy Button",
224 		.active_low	= 1,
225 	},
226 };
227 
228 static struct gpio_keys_platform_data qnap_ts409_button_data = {
229 	.buttons	= qnap_ts409_buttons,
230 	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
231 };
232 
233 static struct platform_device qnap_ts409_button_device = {
234 	.name		= "gpio-keys",
235 	.id		= -1,
236 	.num_resources	= 0,
237 	.dev		= {
238 		.platform_data	= &qnap_ts409_button_data,
239 	},
240 };
241 
242 /*****************************************************************************
243  * General Setup
244  ****************************************************************************/
245 static unsigned int ts409_mpp_modes[] __initdata = {
246 	MPP0_UNUSED,
247 	MPP1_UNUSED,
248 	MPP2_UNUSED,
249 	MPP3_UNUSED,
250 	MPP4_GPIO,		/* HDD 1 status */
251 	MPP5_GPIO,		/* HDD 2 status */
252 	MPP6_GPIO,		/* HDD 3 status */
253 	MPP7_GPIO,		/* HDD 4 status */
254 	MPP8_UNUSED,
255 	MPP9_UNUSED,
256 	MPP10_GPIO,		/* RTC int */
257 	MPP11_UNUSED,
258 	MPP12_UNUSED,
259 	MPP13_UNUSED,
260 	MPP14_GPIO,		/* SW_RST */
261 	MPP15_GPIO,		/* USB copy button */
262 	MPP16_UART,		/* UART1 RXD */
263 	MPP17_UART,		/* UART1 TXD */
264 	MPP18_UNUSED,
265 	MPP19_UNUSED,
266 	0,
267 };
268 
269 static void __init qnap_ts409_init(void)
270 {
271 	/*
272 	 * Setup basic Orion functions. Need to be called early.
273 	 */
274 	orion5x_init();
275 
276 	orion5x_mpp_conf(ts409_mpp_modes);
277 
278 	/*
279 	 * Configure peripherals.
280 	 */
281 	orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE,
282 				   QNAP_TS409_NOR_BOOT_SIZE);
283 	platform_device_register(&qnap_ts409_nor_flash);
284 
285 	orion5x_ehci0_init();
286 	qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
287 				 qnap_ts409_partitions[5].offset,
288 				 qnap_ts409_partitions[5].size);
289 	orion5x_eth_init(&qnap_tsx09_eth_data);
290 	orion5x_i2c_init();
291 	orion5x_uart0_init();
292 	orion5x_uart1_init();
293 
294 	platform_device_register(&qnap_ts409_button_device);
295 
296 	/* Get RTC IRQ and register the chip */
297 	if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
298 		if (gpio_direction_input(TS409_RTC_GPIO) == 0)
299 			qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
300 		else
301 			gpio_free(TS409_RTC_GPIO);
302 	}
303 	if (qnap_ts409_i2c_rtc.irq == 0)
304 		pr_warning("qnap_ts409_init: failed to get RTC IRQ\n");
305 	i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
306 	platform_device_register(&ts409_leds);
307 
308 	/* register tsx09 specific power-off method */
309 	pm_power_off = qnap_tsx09_power_off;
310 }
311 
312 MACHINE_START(TS409, "QNAP TS-409")
313 	/* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
314 	.atag_offset	= 0x100,
315 	.init_machine	= qnap_ts409_init,
316 	.map_io		= orion5x_map_io,
317 	.init_early	= orion5x_init_early,
318 	.init_irq	= orion5x_init_irq,
319 	.timer		= &orion5x_timer,
320 	.fixup		= tag_fixup_mem32,
321 	.restart	= orion5x_restart,
322 MACHINE_END
323