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 compatability 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 			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 			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(struct pci_dev *dev, u8 slot, 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 	.swizzle	= pci_std_swizzle,
174 	.setup		= orion5x_pci_sys_setup,
175 	.scan		= orion5x_pci_sys_scan_bus,
176 	.map_irq	= qnap_ts209_pci_map_irq,
177 };
178 
179 static int __init qnap_ts209_pci_init(void)
180 {
181 	if (machine_is_ts_x09())
182 		pci_common_init(&qnap_ts209_pci);
183 
184 	return 0;
185 }
186 
187 subsys_initcall(qnap_ts209_pci_init);
188 
189 /*****************************************************************************
190  * RTC S35390A on I2C bus
191  ****************************************************************************/
192 
193 #define TS209_RTC_GPIO	3
194 
195 static struct i2c_board_info __initdata qnap_ts209_i2c_rtc = {
196 	I2C_BOARD_INFO("s35390a", 0x30),
197 	.irq	= 0,
198 };
199 
200 /****************************************************************************
201  * GPIO Attached Keys
202  *     Power button is attached to the PIC microcontroller
203  ****************************************************************************/
204 
205 #define QNAP_TS209_GPIO_KEY_MEDIA	1
206 #define QNAP_TS209_GPIO_KEY_RESET	2
207 
208 static struct gpio_keys_button qnap_ts209_buttons[] = {
209 	{
210 		.code		= KEY_COPY,
211 		.gpio		= QNAP_TS209_GPIO_KEY_MEDIA,
212 		.desc		= "USB Copy Button",
213 		.active_low	= 1,
214 	}, {
215 		.code		= KEY_RESTART,
216 		.gpio		= QNAP_TS209_GPIO_KEY_RESET,
217 		.desc		= "Reset Button",
218 		.active_low	= 1,
219 	},
220 };
221 
222 static struct gpio_keys_platform_data qnap_ts209_button_data = {
223 	.buttons	= qnap_ts209_buttons,
224 	.nbuttons	= ARRAY_SIZE(qnap_ts209_buttons),
225 };
226 
227 static struct platform_device qnap_ts209_button_device = {
228 	.name		= "gpio-keys",
229 	.id		= -1,
230 	.num_resources	= 0,
231 	.dev		= {
232 		.platform_data	= &qnap_ts209_button_data,
233 	},
234 };
235 
236 /*****************************************************************************
237  * SATA
238  ****************************************************************************/
239 static struct mv_sata_platform_data qnap_ts209_sata_data = {
240 	.n_ports	= 2,
241 };
242 
243 /*****************************************************************************
244 
245  * General Setup
246  ****************************************************************************/
247 static struct orion5x_mpp_mode ts209_mpp_modes[] __initdata = {
248 	{  0, MPP_UNUSED },
249 	{  1, MPP_GPIO },		/* USB copy button */
250 	{  2, MPP_GPIO },		/* Load defaults button */
251 	{  3, MPP_GPIO },		/* GPIO RTC */
252 	{  4, MPP_UNUSED },
253 	{  5, MPP_UNUSED },
254 	{  6, MPP_GPIO },		/* PCI Int A */
255 	{  7, MPP_GPIO },		/* PCI Int B */
256 	{  8, MPP_UNUSED },
257 	{  9, MPP_UNUSED },
258 	{ 10, MPP_UNUSED },
259 	{ 11, MPP_UNUSED },
260 	{ 12, MPP_SATA_LED },		/* SATA 0 presence */
261 	{ 13, MPP_SATA_LED },		/* SATA 1 presence */
262 	{ 14, MPP_SATA_LED },		/* SATA 0 active */
263 	{ 15, MPP_SATA_LED },		/* SATA 1 active */
264 	{ 16, MPP_UART },		/* UART1 RXD */
265 	{ 17, MPP_UART },		/* UART1 TXD */
266 	{ 18, MPP_GPIO },		/* SW_RST */
267 	{ 19, MPP_UNUSED },
268 	{ -1 },
269 };
270 
271 static void __init qnap_ts209_init(void)
272 {
273 	/*
274 	 * Setup basic Orion functions. Need to be called early.
275 	 */
276 	orion5x_init();
277 
278 	orion5x_mpp_conf(ts209_mpp_modes);
279 
280 	/*
281 	 * MPP[20] PCI clock 0
282 	 * MPP[21] PCI clock 1
283 	 * MPP[22] USB 0 over current
284 	 * MPP[23-25] Reserved
285 	 */
286 
287 	/*
288 	 * Configure peripherals.
289 	 */
290 	orion5x_setup_dev_boot_win(QNAP_TS209_NOR_BOOT_BASE,
291 				   QNAP_TS209_NOR_BOOT_SIZE);
292 	platform_device_register(&qnap_ts209_nor_flash);
293 
294 	orion5x_ehci0_init();
295 	orion5x_ehci1_init();
296 	qnap_tsx09_find_mac_addr(QNAP_TS209_NOR_BOOT_BASE +
297 				 qnap_ts209_partitions[5].offset,
298 				 qnap_ts209_partitions[5].size);
299 	orion5x_eth_init(&qnap_tsx09_eth_data);
300 	orion5x_i2c_init();
301 	orion5x_sata_init(&qnap_ts209_sata_data);
302 	orion5x_uart0_init();
303 	orion5x_uart1_init();
304 	orion5x_xor_init();
305 
306 	platform_device_register(&qnap_ts209_button_device);
307 
308 	/* Get RTC IRQ and register the chip */
309 	if (gpio_request(TS209_RTC_GPIO, "rtc") == 0) {
310 		if (gpio_direction_input(TS209_RTC_GPIO) == 0)
311 			qnap_ts209_i2c_rtc.irq = gpio_to_irq(TS209_RTC_GPIO);
312 		else
313 			gpio_free(TS209_RTC_GPIO);
314 	}
315 	if (qnap_ts209_i2c_rtc.irq == 0)
316 		pr_warning("qnap_ts209_init: failed to get RTC IRQ\n");
317 	i2c_register_board_info(0, &qnap_ts209_i2c_rtc, 1);
318 
319 	/* register tsx09 specific power-off method */
320 	pm_power_off = qnap_tsx09_power_off;
321 }
322 
323 MACHINE_START(TS209, "QNAP TS-109/TS-209")
324 	/* Maintainer: Byron Bradley <byron.bbradley@gmail.com> */
325 	.phys_io	= ORION5X_REGS_PHYS_BASE,
326 	.io_pg_offst	= ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
327 	.boot_params	= 0x00000100,
328 	.init_machine	= qnap_ts209_init,
329 	.map_io		= orion5x_map_io,
330 	.init_irq	= orion5x_init_irq,
331 	.timer		= &orion5x_timer,
332 	.fixup		= tag_fixup_mem32,
333 MACHINE_END
334