1 /*
2  * QNAP TS-409 Board Setup
3  *
4  * Maintainer: Sylver Bruneau <sylver.bruneau@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/mv643xx_eth.h>
19 #include <linux/gpio_keys.h>
20 #include <linux/input.h>
21 #include <linux/i2c.h>
22 #include <linux/serial_reg.h>
23 #include <asm/mach-types.h>
24 #include <asm/gpio.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/pci.h>
27 #include <mach/orion5x.h>
28 #include "common.h"
29 #include "mpp.h"
30 #include "tsx09-common.h"
31 
32 /*****************************************************************************
33  * QNAP TS-409 Info
34  ****************************************************************************/
35 
36 /*
37  * QNAP TS-409 hardware :
38  * - Marvell 88F5281-D0
39  * - Marvell 88SX7042 SATA controller (PCIe)
40  * - Marvell 88E1118 Gigabit Ethernet PHY
41  * - RTC S35390A (@0x30) on I2C bus
42  * - 8MB NOR flash
43  * - 256MB of DDR-2 RAM
44  */
45 
46 /*
47  * 8MB NOR flash Device bus boot chip select
48  */
49 
50 #define QNAP_TS409_NOR_BOOT_BASE 0xff800000
51 #define QNAP_TS409_NOR_BOOT_SIZE SZ_8M
52 
53 /****************************************************************************
54  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
55  *     partitions on the device because we want to keep compatability with
56  *     existing QNAP firmware.
57  *
58  * Layout as used by QNAP:
59  *  [2] 0x00000000-0x00200000 : "Kernel"
60  *  [3] 0x00200000-0x00600000 : "RootFS1"
61  *  [4] 0x00600000-0x00700000 : "RootFS2"
62  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
63  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
64  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
65  ***************************************************************************/
66 static struct mtd_partition qnap_ts409_partitions[] = {
67 	{
68 		.name		= "U-Boot",
69 		.size		= 0x00080000,
70 		.offset		= 0x00780000,
71 		.mask_flags	= MTD_WRITEABLE,
72 	}, {
73 		.name		= "Kernel",
74 		.size		= 0x00200000,
75 		.offset		= 0,
76 	}, {
77 		.name		= "RootFS1",
78 		.size		= 0x00400000,
79 		.offset		= 0x00200000,
80 	}, {
81 		.name		= "RootFS2",
82 		.size		= 0x00100000,
83 		.offset		= 0x00600000,
84 	}, {
85 		.name		= "U-Boot Config",
86 		.size		= 0x00020000,
87 		.offset		= 0x00760000,
88 	}, {
89 		.name		= "NAS Config",
90 		.size		= 0x00060000,
91 		.offset		= 0x00700000,
92 		.mask_flags	= MTD_WRITEABLE,
93 	},
94 };
95 
96 static struct physmap_flash_data qnap_ts409_nor_flash_data = {
97 	.width		= 1,
98 	.parts		= qnap_ts409_partitions,
99 	.nr_parts	= ARRAY_SIZE(qnap_ts409_partitions)
100 };
101 
102 static struct resource qnap_ts409_nor_flash_resource = {
103 	.flags	= IORESOURCE_MEM,
104 	.start	= QNAP_TS409_NOR_BOOT_BASE,
105 	.end	= QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
106 };
107 
108 static struct platform_device qnap_ts409_nor_flash = {
109 	.name		= "physmap-flash",
110 	.id		= 0,
111 	.dev		= { .platform_data = &qnap_ts409_nor_flash_data, },
112 	.num_resources	= 1,
113 	.resource	= &qnap_ts409_nor_flash_resource,
114 };
115 
116 /*****************************************************************************
117  * PCI
118  ****************************************************************************/
119 
120 static int __init qnap_ts409_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
121 {
122 	int irq;
123 
124 	/*
125 	 * Check for devices with hard-wired IRQs.
126 	 */
127 	irq = orion5x_pci_map_irq(dev, slot, pin);
128 	if (irq != -1)
129 		return irq;
130 
131 	/*
132 	 * PCI isn't used on the TS-409
133 	 */
134 	return -1;
135 }
136 
137 static struct hw_pci qnap_ts409_pci __initdata = {
138 	.nr_controllers	= 2,
139 	.swizzle	= pci_std_swizzle,
140 	.setup		= orion5x_pci_sys_setup,
141 	.scan		= orion5x_pci_sys_scan_bus,
142 	.map_irq	= qnap_ts409_pci_map_irq,
143 };
144 
145 static int __init qnap_ts409_pci_init(void)
146 {
147 	if (machine_is_ts409())
148 		pci_common_init(&qnap_ts409_pci);
149 
150 	return 0;
151 }
152 
153 subsys_initcall(qnap_ts409_pci_init);
154 
155 /*****************************************************************************
156  * RTC S35390A on I2C bus
157  ****************************************************************************/
158 
159 #define TS409_RTC_GPIO	10
160 
161 static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
162 	I2C_BOARD_INFO("s35390a", 0x30),
163 };
164 
165 /****************************************************************************
166  * GPIO Attached Keys
167  *     Power button is attached to the PIC microcontroller
168  ****************************************************************************/
169 
170 #define QNAP_TS409_GPIO_KEY_MEDIA	15
171 
172 static struct gpio_keys_button qnap_ts409_buttons[] = {
173 	{
174 		.code		= KEY_RESTART,
175 		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
176 		.desc		= "USB Copy Button",
177 		.active_low	= 1,
178 	},
179 };
180 
181 static struct gpio_keys_platform_data qnap_ts409_button_data = {
182 	.buttons	= qnap_ts409_buttons,
183 	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
184 };
185 
186 static struct platform_device qnap_ts409_button_device = {
187 	.name		= "gpio-keys",
188 	.id		= -1,
189 	.num_resources	= 0,
190 	.dev		= {
191 		.platform_data	= &qnap_ts409_button_data,
192 	},
193 };
194 
195 /*****************************************************************************
196  * General Setup
197  ****************************************************************************/
198 static struct orion5x_mpp_mode ts409_mpp_modes[] __initdata = {
199 	{  0, MPP_UNUSED },
200 	{  1, MPP_UNUSED },
201 	{  2, MPP_UNUSED },
202 	{  3, MPP_UNUSED },
203 	{  4, MPP_GPIO },		/* HDD 1 status */
204 	{  5, MPP_GPIO },		/* HDD 2 status */
205 	{  6, MPP_GPIO },		/* HDD 3 status */
206 	{  7, MPP_GPIO },		/* HDD 4 status */
207 	{  8, MPP_UNUSED },
208 	{  9, MPP_UNUSED },
209 	{ 10, MPP_GPIO },		/* RTC int */
210 	{ 11, MPP_UNUSED },
211 	{ 12, MPP_UNUSED },
212 	{ 13, MPP_UNUSED },
213 	{ 14, MPP_GPIO },		/* SW_RST */
214 	{ 15, MPP_GPIO },		/* USB copy button */
215 	{ 16, MPP_UART },		/* UART1 RXD */
216 	{ 17, MPP_UART },		/* UART1 TXD */
217 	{ 18, MPP_UNUSED },
218 	{ 19, MPP_UNUSED },
219 	{ -1 },
220 };
221 
222 static void __init qnap_ts409_init(void)
223 {
224 	/*
225 	 * Setup basic Orion functions. Need to be called early.
226 	 */
227 	orion5x_init();
228 
229 	orion5x_mpp_conf(ts409_mpp_modes);
230 
231 	/*
232 	 * Configure peripherals.
233 	 */
234 	orion5x_ehci0_init();
235 	qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
236 				 qnap_ts409_partitions[5].offset,
237 				 qnap_ts409_partitions[5].size);
238 	orion5x_eth_init(&qnap_tsx09_eth_data);
239 	orion5x_i2c_init();
240 	orion5x_uart0_init();
241 
242 	orion5x_setup_dev_boot_win(QNAP_TS409_NOR_BOOT_BASE,
243 				   QNAP_TS409_NOR_BOOT_SIZE);
244 	platform_device_register(&qnap_ts409_nor_flash);
245 
246 	platform_device_register(&qnap_ts409_button_device);
247 
248 	/* Get RTC IRQ and register the chip */
249 	if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
250 		if (gpio_direction_input(TS409_RTC_GPIO) == 0)
251 			qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
252 		else
253 			gpio_free(TS409_RTC_GPIO);
254 	}
255 	if (qnap_ts409_i2c_rtc.irq == 0)
256 		pr_warning("qnap_ts409_init: failed to get RTC IRQ\n");
257 	i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
258 
259 	/* register tsx09 specific power-off method */
260 	pm_power_off = qnap_tsx09_power_off;
261 }
262 
263 MACHINE_START(TS409, "QNAP TS-409")
264 	/* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
265 	.phys_io	= ORION5X_REGS_PHYS_BASE,
266 	.io_pg_offst	= ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
267 	.boot_params	= 0x00000100,
268 	.init_machine	= qnap_ts409_init,
269 	.map_io		= orion5x_map_io,
270 	.init_irq	= orion5x_init_irq,
271 	.timer		= &orion5x_timer,
272 	.fixup		= tag_fixup_mem32,
273 MACHINE_END
274