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 "common.h"
31 #include "mpp.h"
32 #include "orion5x.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 	.setup		= orion5x_pci_sys_setup,
144 	.scan		= orion5x_pci_sys_scan_bus,
145 	.map_irq	= qnap_ts409_pci_map_irq,
146 };
147 
148 static int __init qnap_ts409_pci_init(void)
149 {
150 	if (machine_is_ts409())
151 		pci_common_init(&qnap_ts409_pci);
152 
153 	return 0;
154 }
155 
156 subsys_initcall(qnap_ts409_pci_init);
157 
158 /*****************************************************************************
159  * RTC S35390A on I2C bus
160  ****************************************************************************/
161 
162 #define TS409_RTC_GPIO	10
163 
164 static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
165 	I2C_BOARD_INFO("s35390a", 0x30),
166 };
167 
168 /*****************************************************************************
169  * LEDs attached to GPIO
170  ****************************************************************************/
171 
172 static struct gpio_led ts409_led_pins[] = {
173 	{
174 		.name		= "ts409:red:sata1",
175 		.gpio		= 4,
176 		.active_low	= 1,
177 	}, {
178 		.name		= "ts409:red:sata2",
179 		.gpio		= 5,
180 		.active_low	= 1,
181 	}, {
182 		.name		= "ts409:red:sata3",
183 		.gpio		= 6,
184 		.active_low	= 1,
185 	}, {
186 		.name		= "ts409:red:sata4",
187 		.gpio		= 7,
188 		.active_low	= 1,
189 	},
190 };
191 
192 static struct gpio_led_platform_data ts409_led_data = {
193 	.leds		= ts409_led_pins,
194 	.num_leds	= ARRAY_SIZE(ts409_led_pins),
195 };
196 
197 static struct platform_device ts409_leds = {
198 	.name	= "leds-gpio",
199 	.id	= -1,
200 	.dev	= {
201 		.platform_data	= &ts409_led_data,
202 	},
203 };
204 
205 /****************************************************************************
206  * GPIO Attached Keys
207  *     Power button is attached to the PIC microcontroller
208  ****************************************************************************/
209 
210 #define QNAP_TS409_GPIO_KEY_RESET	14
211 #define QNAP_TS409_GPIO_KEY_MEDIA	15
212 
213 static struct gpio_keys_button qnap_ts409_buttons[] = {
214 	{
215 		.code		= KEY_RESTART,
216 		.gpio		= QNAP_TS409_GPIO_KEY_RESET,
217 		.desc		= "Reset Button",
218 		.active_low	= 1,
219 	}, {
220 		.code		= KEY_COPY,
221 		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
222 		.desc		= "USB Copy Button",
223 		.active_low	= 1,
224 	},
225 };
226 
227 static struct gpio_keys_platform_data qnap_ts409_button_data = {
228 	.buttons	= qnap_ts409_buttons,
229 	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
230 };
231 
232 static struct platform_device qnap_ts409_button_device = {
233 	.name		= "gpio-keys",
234 	.id		= -1,
235 	.num_resources	= 0,
236 	.dev		= {
237 		.platform_data	= &qnap_ts409_button_data,
238 	},
239 };
240 
241 /*****************************************************************************
242  * General Setup
243  ****************************************************************************/
244 static unsigned int ts409_mpp_modes[] __initdata = {
245 	MPP0_UNUSED,
246 	MPP1_UNUSED,
247 	MPP2_UNUSED,
248 	MPP3_UNUSED,
249 	MPP4_GPIO,		/* HDD 1 status */
250 	MPP5_GPIO,		/* HDD 2 status */
251 	MPP6_GPIO,		/* HDD 3 status */
252 	MPP7_GPIO,		/* HDD 4 status */
253 	MPP8_UNUSED,
254 	MPP9_UNUSED,
255 	MPP10_GPIO,		/* RTC int */
256 	MPP11_UNUSED,
257 	MPP12_UNUSED,
258 	MPP13_UNUSED,
259 	MPP14_GPIO,		/* SW_RST */
260 	MPP15_GPIO,		/* USB copy button */
261 	MPP16_UART,		/* UART1 RXD */
262 	MPP17_UART,		/* UART1 TXD */
263 	MPP18_UNUSED,
264 	MPP19_UNUSED,
265 	0,
266 };
267 
268 static void __init qnap_ts409_init(void)
269 {
270 	/*
271 	 * Setup basic Orion functions. Need to be called early.
272 	 */
273 	orion5x_init();
274 
275 	orion5x_mpp_conf(ts409_mpp_modes);
276 
277 	/*
278 	 * Configure peripherals.
279 	 */
280 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
281 				    ORION_MBUS_DEVBUS_BOOT_ATTR,
282 				    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_warn("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 	.atag_offset	= 0x100,
316 	.nr_irqs	= ORION5X_NR_IRQS,
317 	.init_machine	= qnap_ts409_init,
318 	.map_io		= orion5x_map_io,
319 	.init_early	= orion5x_init_early,
320 	.init_irq	= orion5x_init_irq,
321 	.init_time	= orion5x_timer_init,
322 	.fixup		= tag_fixup_mem32,
323 	.restart	= orion5x_restart,
324 MACHINE_END
325