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 
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/gpio.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/pci.h>
31 #include <mach/orion5x.h>
32 #include "common.h"
33 #include "mpp.h"
34 #include "tsx09-common.h"
35 
36 /*****************************************************************************
37  * QNAP TS-409 Info
38  ****************************************************************************/
39 
40 /*
41  * QNAP TS-409 hardware :
42  * - Marvell 88F5281-D0
43  * - Marvell 88SX7042 SATA controller (PCIe)
44  * - Marvell 88E1118 Gigabit Ethernet PHY
45  * - RTC S35390A (@0x30) on I2C bus
46  * - 8MB NOR flash
47  * - 256MB of DDR-2 RAM
48  */
49 
50 /*
51  * 8MB NOR flash Device bus boot chip select
52  */
53 
54 #define QNAP_TS409_NOR_BOOT_BASE 0xff800000
55 #define QNAP_TS409_NOR_BOOT_SIZE SZ_8M
56 
57 /****************************************************************************
58  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
59  *     partitions on the device because we want to keep compatibility with
60  *     existing QNAP firmware.
61  *
62  * Layout as used by QNAP:
63  *  [2] 0x00000000-0x00200000 : "Kernel"
64  *  [3] 0x00200000-0x00600000 : "RootFS1"
65  *  [4] 0x00600000-0x00700000 : "RootFS2"
66  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
67  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
68  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
69  ***************************************************************************/
70 static struct mtd_partition qnap_ts409_partitions[] = {
71 	{
72 		.name		= "U-Boot",
73 		.size		= 0x00080000,
74 		.offset		= 0x00780000,
75 		.mask_flags	= MTD_WRITEABLE,
76 	}, {
77 		.name		= "Kernel",
78 		.size		= 0x00200000,
79 		.offset		= 0,
80 	}, {
81 		.name		= "RootFS1",
82 		.size		= 0x00400000,
83 		.offset		= 0x00200000,
84 	}, {
85 		.name		= "RootFS2",
86 		.size		= 0x00100000,
87 		.offset		= 0x00600000,
88 	}, {
89 		.name		= "U-Boot Config",
90 		.size		= 0x00020000,
91 		.offset		= 0x00760000,
92 	}, {
93 		.name		= "NAS Config",
94 		.size		= 0x00060000,
95 		.offset		= 0x00700000,
96 		.mask_flags	= MTD_WRITEABLE,
97 	},
98 };
99 
100 static struct physmap_flash_data qnap_ts409_nor_flash_data = {
101 	.width		= 1,
102 	.parts		= qnap_ts409_partitions,
103 	.nr_parts	= ARRAY_SIZE(qnap_ts409_partitions)
104 };
105 
106 static struct resource qnap_ts409_nor_flash_resource = {
107 	.flags	= IORESOURCE_MEM,
108 	.start	= QNAP_TS409_NOR_BOOT_BASE,
109 	.end	= QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
110 };
111 
112 static struct platform_device qnap_ts409_nor_flash = {
113 	.name		= "physmap-flash",
114 	.id		= 0,
115 	.dev		= { .platform_data = &qnap_ts409_nor_flash_data, },
116 	.num_resources	= 1,
117 	.resource	= &qnap_ts409_nor_flash_resource,
118 };
119 
120 /*****************************************************************************
121  * PCI
122  ****************************************************************************/
123 
124 static int __init qnap_ts409_pci_map_irq(const struct pci_dev *dev, u8 slot,
125 	u8 pin)
126 {
127 	int irq;
128 
129 	/*
130 	 * Check for devices with hard-wired IRQs.
131 	 */
132 	irq = orion5x_pci_map_irq(dev, slot, pin);
133 	if (irq != -1)
134 		return irq;
135 
136 	/*
137 	 * PCI isn't used on the TS-409
138 	 */
139 	return -1;
140 }
141 
142 static struct hw_pci qnap_ts409_pci __initdata = {
143 	.nr_controllers	= 2,
144 	.swizzle	= pci_std_swizzle,
145 	.setup		= orion5x_pci_sys_setup,
146 	.scan		= orion5x_pci_sys_scan_bus,
147 	.map_irq	= qnap_ts409_pci_map_irq,
148 };
149 
150 static int __init qnap_ts409_pci_init(void)
151 {
152 	if (machine_is_ts409())
153 		pci_common_init(&qnap_ts409_pci);
154 
155 	return 0;
156 }
157 
158 subsys_initcall(qnap_ts409_pci_init);
159 
160 /*****************************************************************************
161  * RTC S35390A on I2C bus
162  ****************************************************************************/
163 
164 #define TS409_RTC_GPIO	10
165 
166 static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
167 	I2C_BOARD_INFO("s35390a", 0x30),
168 };
169 
170 /*****************************************************************************
171  * LEDs attached to GPIO
172  ****************************************************************************/
173 
174 static struct gpio_led ts409_led_pins[] = {
175 	{
176 		.name		= "ts409:red:sata1",
177 		.gpio		= 4,
178 		.active_low	= 1,
179 	}, {
180 		.name		= "ts409:red:sata2",
181 		.gpio		= 5,
182 		.active_low	= 1,
183 	}, {
184 		.name		= "ts409:red:sata3",
185 		.gpio		= 6,
186 		.active_low	= 1,
187 	}, {
188 		.name		= "ts409:red:sata4",
189 		.gpio		= 7,
190 		.active_low	= 1,
191 	},
192 };
193 
194 static struct gpio_led_platform_data ts409_led_data = {
195 	.leds		= ts409_led_pins,
196 	.num_leds	= ARRAY_SIZE(ts409_led_pins),
197 };
198 
199 static struct platform_device ts409_leds = {
200 	.name	= "leds-gpio",
201 	.id	= -1,
202 	.dev	= {
203 		.platform_data	= &ts409_led_data,
204 	},
205 };
206 
207 /****************************************************************************
208  * GPIO Attached Keys
209  *     Power button is attached to the PIC microcontroller
210  ****************************************************************************/
211 
212 #define QNAP_TS409_GPIO_KEY_RESET	14
213 #define QNAP_TS409_GPIO_KEY_MEDIA	15
214 
215 static struct gpio_keys_button qnap_ts409_buttons[] = {
216 	{
217 		.code		= KEY_RESTART,
218 		.gpio		= QNAP_TS409_GPIO_KEY_RESET,
219 		.desc		= "Reset Button",
220 		.active_low	= 1,
221 	}, {
222 		.code		= KEY_COPY,
223 		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
224 		.desc		= "USB Copy Button",
225 		.active_low	= 1,
226 	},
227 };
228 
229 static struct gpio_keys_platform_data qnap_ts409_button_data = {
230 	.buttons	= qnap_ts409_buttons,
231 	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
232 };
233 
234 static struct platform_device qnap_ts409_button_device = {
235 	.name		= "gpio-keys",
236 	.id		= -1,
237 	.num_resources	= 0,
238 	.dev		= {
239 		.platform_data	= &qnap_ts409_button_data,
240 	},
241 };
242 
243 /*****************************************************************************
244  * General Setup
245  ****************************************************************************/
246 static unsigned int ts409_mpp_modes[] __initdata = {
247 	MPP0_UNUSED,
248 	MPP1_UNUSED,
249 	MPP2_UNUSED,
250 	MPP3_UNUSED,
251 	MPP4_GPIO,		/* HDD 1 status */
252 	MPP5_GPIO,		/* HDD 2 status */
253 	MPP6_GPIO,		/* HDD 3 status */
254 	MPP7_GPIO,		/* HDD 4 status */
255 	MPP8_UNUSED,
256 	MPP9_UNUSED,
257 	MPP10_GPIO,		/* RTC int */
258 	MPP11_UNUSED,
259 	MPP12_UNUSED,
260 	MPP13_UNUSED,
261 	MPP14_GPIO,		/* SW_RST */
262 	MPP15_GPIO,		/* USB copy button */
263 	MPP16_UART,		/* UART1 RXD */
264 	MPP17_UART,		/* UART1 TXD */
265 	MPP18_UNUSED,
266 	MPP19_UNUSED,
267 	0,
268 };
269 
270 static void __init qnap_ts409_init(void)
271 {
272 	/*
273 	 * Setup basic Orion functions. Need to be called early.
274 	 */
275 	orion5x_init();
276 
277 	orion5x_mpp_conf(ts409_mpp_modes);
278 
279 	/*
280 	 * Configure peripherals.
281 	 */
282 	orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE,
283 				   QNAP_TS409_NOR_BOOT_SIZE);
284 	platform_device_register(&qnap_ts409_nor_flash);
285 
286 	orion5x_ehci0_init();
287 	qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
288 				 qnap_ts409_partitions[5].offset,
289 				 qnap_ts409_partitions[5].size);
290 	orion5x_eth_init(&qnap_tsx09_eth_data);
291 	orion5x_i2c_init();
292 	orion5x_uart0_init();
293 	orion5x_uart1_init();
294 
295 	platform_device_register(&qnap_ts409_button_device);
296 
297 	/* Get RTC IRQ and register the chip */
298 	if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
299 		if (gpio_direction_input(TS409_RTC_GPIO) == 0)
300 			qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
301 		else
302 			gpio_free(TS409_RTC_GPIO);
303 	}
304 	if (qnap_ts409_i2c_rtc.irq == 0)
305 		pr_warning("qnap_ts409_init: failed to get RTC IRQ\n");
306 	i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
307 	platform_device_register(&ts409_leds);
308 
309 	/* register tsx09 specific power-off method */
310 	pm_power_off = qnap_tsx09_power_off;
311 }
312 
313 MACHINE_START(TS409, "QNAP TS-409")
314 	/* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
315 	.boot_params	= 0x00000100,
316 	.init_machine	= qnap_ts409_init,
317 	.map_io		= orion5x_map_io,
318 	.init_early	= orion5x_init_early,
319 	.init_irq	= orion5x_init_irq,
320 	.timer		= &orion5x_timer,
321 	.fixup		= tag_fixup_mem32,
322 MACHINE_END
323