1 /*
2  * QNAP TS-109/TS-209 Board Setup
3  *
4  * Maintainer: Byron Bradley <byron.bbradley@gmail.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version
9  * 2 of the License, or (at your option) any later version.
10  */
11 
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/pci.h>
16 #include <linux/irq.h>
17 #include <linux/mtd/physmap.h>
18 #include <linux/mtd/nand.h>
19 #include <linux/mv643xx_eth.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/input.h>
22 #include <linux/i2c.h>
23 #include <linux/serial_reg.h>
24 #include <linux/ata_platform.h>
25 #include <asm/mach-types.h>
26 #include <asm/gpio.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/pci.h>
29 #include <mach/orion5x.h>
30 #include "common.h"
31 #include "mpp.h"
32 #include "tsx09-common.h"
33 
34 #define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
35 #define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
36 
37 /****************************************************************************
38  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
39  *     partitions on the device because we want to keep compatibility with
40  *     existing QNAP firmware.
41  *
42  * Layout as used by QNAP:
43  *  [2] 0x00000000-0x00200000 : "Kernel"
44  *  [3] 0x00200000-0x00600000 : "RootFS1"
45  *  [4] 0x00600000-0x00700000 : "RootFS2"
46  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
47  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
48  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
49  ***************************************************************************/
50 static struct mtd_partition qnap_ts209_partitions[] = {
51 	{
52 		.name		= "U-Boot",
53 		.size		= 0x00080000,
54 		.offset		= 0x00780000,
55 		.mask_flags	= MTD_WRITEABLE,
56 	}, {
57 		.name		= "Kernel",
58 		.size		= 0x00200000,
59 		.offset		= 0,
60 	}, {
61 		.name		= "RootFS1",
62 		.size		= 0x00400000,
63 		.offset		= 0x00200000,
64 	}, {
65 		.name		= "RootFS2",
66 		.size		= 0x00100000,
67 		.offset		= 0x00600000,
68 	}, {
69 		.name		= "U-Boot Config",
70 		.size		= 0x00020000,
71 		.offset		= 0x00760000,
72 	}, {
73 		.name		= "NAS Config",
74 		.size		= 0x00060000,
75 		.offset		= 0x00700000,
76 		.mask_flags	= MTD_WRITEABLE,
77 	},
78 };
79 
80 static struct physmap_flash_data qnap_ts209_nor_flash_data = {
81 	.width		= 1,
82 	.parts		= qnap_ts209_partitions,
83 	.nr_parts	= ARRAY_SIZE(qnap_ts209_partitions)
84 };
85 
86 static struct resource qnap_ts209_nor_flash_resource = {
87 	.flags	= IORESOURCE_MEM,
88 	.start	= QNAP_TS209_NOR_BOOT_BASE,
89 	.end	= QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
90 };
91 
92 static struct platform_device qnap_ts209_nor_flash = {
93 	.name		= "physmap-flash",
94 	.id		= 0,
95 	.dev		= {
96 		.platform_data	= &qnap_ts209_nor_flash_data,
97 	},
98 	.resource	= &qnap_ts209_nor_flash_resource,
99 	.num_resources	= 1,
100 };
101 
102 /*****************************************************************************
103  * PCI
104  ****************************************************************************/
105 
106 #define QNAP_TS209_PCI_SLOT0_OFFS	7
107 #define QNAP_TS209_PCI_SLOT0_IRQ_PIN	6
108 #define QNAP_TS209_PCI_SLOT1_IRQ_PIN	7
109 
110 void __init qnap_ts209_pci_preinit(void)
111 {
112 	int pin;
113 
114 	/*
115 	 * Configure PCI GPIO IRQ pins
116 	 */
117 	pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
118 	if (gpio_request(pin, "PCI Int1") == 0) {
119 		if (gpio_direction_input(pin) == 0) {
120 			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
121 		} else {
122 			printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
123 					"set_irq_type pin %d\n", pin);
124 			gpio_free(pin);
125 		}
126 	} else {
127 		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
128 				"%d\n", pin);
129 	}
130 
131 	pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
132 	if (gpio_request(pin, "PCI Int2") == 0) {
133 		if (gpio_direction_input(pin) == 0) {
134 			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
135 		} else {
136 			printk(KERN_ERR "qnap_ts209_pci_preinit failed "
137 					"to set_irq_type pin %d\n", pin);
138 			gpio_free(pin);
139 		}
140 	} else {
141 		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
142 				"%d\n", pin);
143 	}
144 }
145 
146 static int __init qnap_ts209_pci_map_irq(const struct pci_dev *dev, u8 slot,
147 	u8 pin)
148 {
149 	int irq;
150 
151 	/*
152 	 * Check for devices with hard-wired IRQs.
153 	 */
154 	irq = orion5x_pci_map_irq(dev, slot, pin);
155 	if (irq != -1)
156 		return irq;
157 
158 	/*
159 	 * PCI IRQs are connected via GPIOs.
160 	 */
161 	switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
162 	case 0:
163 		return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
164 	case 1:
165 		return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
166 	default:
167 		return -1;
168 	}
169 }
170 
171 static struct hw_pci qnap_ts209_pci __initdata = {
172 	.nr_controllers	= 2,
173 	.preinit	= qnap_ts209_pci_preinit,
174 	.swizzle	= pci_std_swizzle,
175 	.setup		= orion5x_pci_sys_setup,
176 	.scan		= orion5x_pci_sys_scan_bus,
177 	.map_irq	= qnap_ts209_pci_map_irq,
178 };
179 
180 static int __init qnap_ts209_pci_init(void)
181 {
182 	if (machine_is_ts_x09())
183 		pci_common_init(&qnap_ts209_pci);
184 
185 	return 0;
186 }
187 
188 subsys_initcall(qnap_ts209_pci_init);
189 
190 /*****************************************************************************
191  * RTC S35390A on I2C bus
192  ****************************************************************************/
193 
194 #define TS209_RTC_GPIO	3
195 
196 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
197 	I2C_BOARD_INFO("s35390a", 0x30),
198 	.irq	= 0,
199 };
200 
201 /****************************************************************************
202  * GPIO Attached Keys
203  *     Power button is attached to the PIC microcontroller
204  ****************************************************************************/
205 
206 #define QNAP_TS209_GPIO_KEY_MEDIA	1
207 #define QNAP_TS209_GPIO_KEY_RESET	2
208 
209 static struct gpio_keys_button qnap_ts209_buttons[] = {
210 	{
211 		.code		= KEY_COPY,
212 		.gpio		= QNAP_TS209_GPIO_KEY_MEDIA,
213 		.desc		= "USB Copy Button",
214 		.active_low	= 1,
215 	}, {
216 		.code		= KEY_RESTART,
217 		.gpio		= QNAP_TS209_GPIO_KEY_RESET,
218 		.desc		= "Reset Button",
219 		.active_low	= 1,
220 	},
221 };
222 
223 static struct gpio_keys_platform_data qnap_ts209_button_data = {
224 	.buttons	= qnap_ts209_buttons,
225 	.nbuttons	= ARRAY_SIZE(qnap_ts209_buttons),
226 };
227 
228 static struct platform_device qnap_ts209_button_device = {
229 	.name		= "gpio-keys",
230 	.id		= -1,
231 	.num_resources	= 0,
232 	.dev		= {
233 		.platform_data	= &qnap_ts209_button_data,
234 	},
235 };
236 
237 /*****************************************************************************
238  * SATA
239  ****************************************************************************/
240 static struct mv_sata_platform_data qnap_ts209_sata_data = {
241 	.n_ports	= 2,
242 };
243 
244 /*****************************************************************************
245 
246  * General Setup
247  ****************************************************************************/
248 static unsigned int ts209_mpp_modes[] __initdata = {
249 	MPP0_UNUSED,
250 	MPP1_GPIO,		/* USB copy button */
251 	MPP2_GPIO,		/* Load defaults button */
252 	MPP3_GPIO,		/* GPIO RTC */
253 	MPP4_UNUSED,
254 	MPP5_UNUSED,
255 	MPP6_GPIO,		/* PCI Int A */
256 	MPP7_GPIO,		/* PCI Int B */
257 	MPP8_UNUSED,
258 	MPP9_UNUSED,
259 	MPP10_UNUSED,
260 	MPP11_UNUSED,
261 	MPP12_SATA_LED,		/* SATA 0 presence */
262 	MPP13_SATA_LED,		/* SATA 1 presence */
263 	MPP14_SATA_LED,		/* SATA 0 active */
264 	MPP15_SATA_LED,		/* SATA 1 active */
265 	MPP16_UART,		/* UART1 RXD */
266 	MPP17_UART,		/* UART1 TXD */
267 	MPP18_GPIO,		/* SW_RST */
268 	MPP19_UNUSED,
269 	0,
270 };
271 
272 static void __init qnap_ts209_init(void)
273 {
274 	/*
275 	 * Setup basic Orion functions. Need to be called early.
276 	 */
277 	orion5x_init();
278 
279 	orion5x_mpp_conf(ts209_mpp_modes);
280 
281 	/*
282 	 * MPP[20] PCI clock 0
283 	 * MPP[21] PCI clock 1
284 	 * MPP[22] USB 0 over current
285 	 * MPP[23-25] Reserved
286 	 */
287 
288 	/*
289 	 * Configure peripherals.
290 	 */
291 	orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE,
292 				   QNAP_TS209_NOR_BOOT_SIZE);
293 	platform_device_register(&qnap_ts209_nor_flash);
294 
295 	orion5x_ehci0_init();
296 	orion5x_ehci1_init();
297 	qnap_tsx09_find_mac_addr(QNAP_TS209_NOR_BOOT_BASE +
298 				 qnap_ts209_partitions[5].offset,
299 				 qnap_ts209_partitions[5].size);
300 	orion5x_eth_init(&qnap_tsx09_eth_data);
301 	orion5x_i2c_init();
302 	orion5x_sata_init(&qnap_ts209_sata_data);
303 	orion5x_uart0_init();
304 	orion5x_uart1_init();
305 	orion5x_xor_init();
306 
307 	platform_device_register(&qnap_ts209_button_device);
308 
309 	/* Get RTC IRQ and register the chip */
310 	if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
311 		if (gpio_direction_input(TS209_RTC_GPIO) == 0)
312 			qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
313 		else
314 			gpio_free(TS209_RTC_GPIO);
315 	}
316 	if (qnap_ts209_i2c_rtc.irq == 0)
317 		pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
318 	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
319 
320 	/* register tsx09 specific power-off method */
321 	pm_power_off = qnap_tsx09_power_off;
322 }
323 
324 MACHINE_START(TS209, "QNAP TS-109/TS-209")
325 	/* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
326 	.boot_params	= 0x00000100,
327 	.init_machine	= qnap_ts209_init,
328 	.map_io		= orion5x_map_io,
329 	.init_early	= orion5x_init_early,
330 	.init_irq	= orion5x_init_irq,
331 	.timer		= &orion5x_timer,
332 	.fixup		= tag_fixup_mem32,
333 MACHINE_END
334