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 #include <linux/gpio.h>
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/mach/arch.h>
27 #include <asm/mach/pci.h>
28 #include <mach/orion5x.h>
29 #include "common.h"
30 #include "mpp.h"
31 #include "tsx09-common.h"
32 
33 #define QNAP_TS209_NOR_BOOT_BASE 0xf4000000
34 #define QNAP_TS209_NOR_BOOT_SIZE SZ_8M
35 
36 /****************************************************************************
37  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
38  *     partitions on the device because we want to keep compatibility with
39  *     existing QNAP firmware.
40  *
41  * Layout as used by QNAP:
42  *  [2] 0x00000000-0x00200000 : "Kernel"
43  *  [3] 0x00200000-0x00600000 : "RootFS1"
44  *  [4] 0x00600000-0x00700000 : "RootFS2"
45  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
46  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
47  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
48  ***************************************************************************/
49 static struct mtd_partition qnap_ts209_partitions[] = {
50 	{
51 		.name		= "U-Boot",
52 		.size		= 0x00080000,
53 		.offset		= 0x00780000,
54 		.mask_flags	= MTD_WRITEABLE,
55 	}, {
56 		.name		= "Kernel",
57 		.size		= 0x00200000,
58 		.offset		= 0,
59 	}, {
60 		.name		= "RootFS1",
61 		.size		= 0x00400000,
62 		.offset		= 0x00200000,
63 	}, {
64 		.name		= "RootFS2",
65 		.size		= 0x00100000,
66 		.offset		= 0x00600000,
67 	}, {
68 		.name		= "U-Boot Config",
69 		.size		= 0x00020000,
70 		.offset		= 0x00760000,
71 	}, {
72 		.name		= "NAS Config",
73 		.size		= 0x00060000,
74 		.offset		= 0x00700000,
75 		.mask_flags	= MTD_WRITEABLE,
76 	},
77 };
78 
79 static struct physmap_flash_data qnap_ts209_nor_flash_data = {
80 	.width		= 1,
81 	.parts		= qnap_ts209_partitions,
82 	.nr_parts	= ARRAY_SIZE(qnap_ts209_partitions)
83 };
84 
85 static struct resource qnap_ts209_nor_flash_resource = {
86 	.flags	= IORESOURCE_MEM,
87 	.start	= QNAP_TS209_NOR_BOOT_BASE,
88 	.end	= QNAP_TS209_NOR_BOOT_BASE + QNAP_TS209_NOR_BOOT_SIZE - 1,
89 };
90 
91 static struct platform_device qnap_ts209_nor_flash = {
92 	.name		= "physmap-flash",
93 	.id		= 0,
94 	.dev		= {
95 		.platform_data	= &qnap_ts209_nor_flash_data,
96 	},
97 	.resource	= &qnap_ts209_nor_flash_resource,
98 	.num_resources	= 1,
99 };
100 
101 /*****************************************************************************
102  * PCI
103  ****************************************************************************/
104 
105 #define QNAP_TS209_PCI_SLOT0_OFFS	7
106 #define QNAP_TS209_PCI_SLOT0_IRQ_PIN	6
107 #define QNAP_TS209_PCI_SLOT1_IRQ_PIN	7
108 
109 static void __init qnap_ts209_pci_preinit(void)
110 {
111 	int pin;
112 
113 	/*
114 	 * Configure PCI GPIO IRQ pins
115 	 */
116 	pin = QNAP_TS209_PCI_SLOT0_IRQ_PIN;
117 	if (gpio_request(pin, "PCI Int1") == 0) {
118 		if (gpio_direction_input(pin) == 0) {
119 			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
120 		} else {
121 			printk(KERN_ERR "qnap_ts209_pci_preinit failed to "
122 					"set_irq_type pin %d\n", pin);
123 			gpio_free(pin);
124 		}
125 	} else {
126 		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
127 				"%d\n", pin);
128 	}
129 
130 	pin = QNAP_TS209_PCI_SLOT1_IRQ_PIN;
131 	if (gpio_request(pin, "PCI Int2") == 0) {
132 		if (gpio_direction_input(pin) == 0) {
133 			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
134 		} else {
135 			printk(KERN_ERR "qnap_ts209_pci_preinit failed "
136 					"to set_irq_type pin %d\n", pin);
137 			gpio_free(pin);
138 		}
139 	} else {
140 		printk(KERN_ERR "qnap_ts209_pci_preinit failed to gpio_request "
141 				"%d\n", pin);
142 	}
143 }
144 
145 static int __init qnap_ts209_pci_map_irq(const struct pci_dev *dev, u8 slot,
146 	u8 pin)
147 {
148 	int irq;
149 
150 	/*
151 	 * Check for devices with hard-wired IRQs.
152 	 */
153 	irq = orion5x_pci_map_irq(dev, slot, pin);
154 	if (irq != -1)
155 		return irq;
156 
157 	/*
158 	 * PCI IRQs are connected via GPIOs.
159 	 */
160 	switch (slot - QNAP_TS209_PCI_SLOT0_OFFS) {
161 	case 0:
162 		return gpio_to_irq(QNAP_TS209_PCI_SLOT0_IRQ_PIN);
163 	case 1:
164 		return gpio_to_irq(QNAP_TS209_PCI_SLOT1_IRQ_PIN);
165 	default:
166 		return -1;
167 	}
168 }
169 
170 static struct hw_pci qnap_ts209_pci __initdata = {
171 	.nr_controllers	= 2,
172 	.preinit	= qnap_ts209_pci_preinit,
173 	.setup		= orion5x_pci_sys_setup,
174 	.scan		= orion5x_pci_sys_scan_bus,
175 	.map_irq	= qnap_ts209_pci_map_irq,
176 };
177 
178 static int __init qnap_ts209_pci_init(void)
179 {
180 	if (machine_is_ts209())
181 		pci_common_init(&qnap_ts209_pci);
182 
183 	return 0;
184 }
185 
186 subsys_initcall(qnap_ts209_pci_init);
187 
188 /*****************************************************************************
189  * RTC S35390A on I2C bus
190  ****************************************************************************/
191 
192 #define TS209_RTC_GPIO	3
193 
194 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
195 	I2C_BOARD_INFO("s35390a", 0x30),
196 	.irq	= 0,
197 };
198 
199 /****************************************************************************
200  * GPIO Attached Keys
201  *     Power button is attached to the PIC microcontroller
202  ****************************************************************************/
203 
204 #define QNAP_TS209_GPIO_KEY_MEDIA	1
205 #define QNAP_TS209_GPIO_KEY_RESET	2
206 
207 static struct gpio_keys_button qnap_ts209_buttons[] = {
208 	{
209 		.code		= KEY_COPY,
210 		.gpio		= QNAP_TS209_GPIO_KEY_MEDIA,
211 		.desc		= "USB Copy Button",
212 		.active_low	= 1,
213 	}, {
214 		.code		= KEY_RESTART,
215 		.gpio		= QNAP_TS209_GPIO_KEY_RESET,
216 		.desc		= "Reset Button",
217 		.active_low	= 1,
218 	},
219 };
220 
221 static struct gpio_keys_platform_data qnap_ts209_button_data = {
222 	.buttons	= qnap_ts209_buttons,
223 	.nbuttons	= ARRAY_SIZE(qnap_ts209_buttons),
224 };
225 
226 static struct platform_device qnap_ts209_button_device = {
227 	.name		= "gpio-keys",
228 	.id		= -1,
229 	.num_resources	= 0,
230 	.dev		= {
231 		.platform_data	= &qnap_ts209_button_data,
232 	},
233 };
234 
235 /*****************************************************************************
236  * SATA
237  ****************************************************************************/
238 static struct mv_sata_platform_data qnap_ts209_sata_data = {
239 	.n_ports	= 2,
240 };
241 
242 /*****************************************************************************
243 
244  * General Setup
245  ****************************************************************************/
246 static unsigned int ts209_mpp_modes[] __initdata = {
247 	MPP0_UNUSED,
248 	MPP1_GPIO,		/* USB copy button */
249 	MPP2_GPIO,		/* Load defaults button */
250 	MPP3_GPIO,		/* GPIO RTC */
251 	MPP4_UNUSED,
252 	MPP5_UNUSED,
253 	MPP6_GPIO,		/* PCI Int A */
254 	MPP7_GPIO,		/* PCI Int B */
255 	MPP8_UNUSED,
256 	MPP9_UNUSED,
257 	MPP10_UNUSED,
258 	MPP11_UNUSED,
259 	MPP12_SATA_LED,		/* SATA 0 presence */
260 	MPP13_SATA_LED,		/* SATA 1 presence */
261 	MPP14_SATA_LED,		/* SATA 0 active */
262 	MPP15_SATA_LED,		/* SATA 1 active */
263 	MPP16_UART,		/* UART1 RXD */
264 	MPP17_UART,		/* UART1 TXD */
265 	MPP18_GPIO,		/* SW_RST */
266 	MPP19_UNUSED,
267 	0,
268 };
269 
270 static void __init qnap_ts209_init(void)
271 {
272 	/*
273 	 * Setup basic Orion functions. Need to be called early.
274 	 */
275 	orion5x_init();
276 
277 	orion5x_mpp_conf(ts209_mpp_modes);
278 
279 	/*
280 	 * MPP[20] PCI clock 0
281 	 * MPP[21] PCI clock 1
282 	 * MPP[22] USB 0 over current
283 	 * MPP[23-25] Reserved
284 	 */
285 
286 	/*
287 	 * Configure peripherals.
288 	 */
289 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
290 				    ORION_MBUS_DEVBUS_BOOT_ATTR,
291 				    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_warn("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 	.atag_offset	= 0x100,
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 	.init_time	= orion5x_timer_init,
332 	.fixup		= tag_fixup_mem32,
333 	.restart	= orion5x_restart,
334 MACHINE_END
335