1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * QNAP TS-409 Board Setup
4  *
5  * Maintainer: Sylver Bruneau <sylver.bruneau@gmail.com>
6  *
7  * Copyright (C) 2008  Sylver Bruneau <sylver.bruneau@gmail.com>
8  * Copyright (C) 2008  Martin Michlmayr <tbm@cyrius.com>
9  */
10 #include <linux/gpio.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/pci.h>
15 #include <linux/irq.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/mv643xx_eth.h>
18 #include <linux/leds.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/mach/arch.h>
25 #include <asm/mach/pci.h>
26 #include "common.h"
27 #include "mpp.h"
28 #include "orion5x.h"
29 #include "tsx09-common.h"
30 
31 /*****************************************************************************
32  * QNAP TS-409 Info
33  ****************************************************************************/
34 
35 /*
36  * QNAP TS-409 hardware :
37  * - Marvell 88F5281-D0
38  * - Marvell 88SX7042 SATA controller (PCIe)
39  * - Marvell 88E1118 Gigabit Ethernet PHY
40  * - RTC S35390A (@0x30) on I2C bus
41  * - 8MB NOR flash
42  * - 256MB of DDR-2 RAM
43  */
44 
45 /*
46  * 8MB NOR flash Device bus boot chip select
47  */
48 
49 #define QNAP_TS409_NOR_BOOT_BASE 0xff800000
50 #define QNAP_TS409_NOR_BOOT_SIZE SZ_8M
51 
52 /****************************************************************************
53  * 8MiB NOR flash. The struct mtd_partition is not in the same order as the
54  *     partitions on the device because we want to keep compatibility with
55  *     existing QNAP firmware.
56  *
57  * Layout as used by QNAP:
58  *  [2] 0x00000000-0x00200000 : "Kernel"
59  *  [3] 0x00200000-0x00600000 : "RootFS1"
60  *  [4] 0x00600000-0x00700000 : "RootFS2"
61  *  [6] 0x00700000-0x00760000 : "NAS Config" (read-only)
62  *  [5] 0x00760000-0x00780000 : "U-Boot Config"
63  *  [1] 0x00780000-0x00800000 : "U-Boot" (read-only)
64  ***************************************************************************/
65 static struct mtd_partition qnap_ts409_partitions[] = {
66 	{
67 		.name		= "U-Boot",
68 		.size		= 0x00080000,
69 		.offset		= 0x00780000,
70 		.mask_flags	= MTD_WRITEABLE,
71 	}, {
72 		.name		= "Kernel",
73 		.size		= 0x00200000,
74 		.offset		= 0,
75 	}, {
76 		.name		= "RootFS1",
77 		.size		= 0x00400000,
78 		.offset		= 0x00200000,
79 	}, {
80 		.name		= "RootFS2",
81 		.size		= 0x00100000,
82 		.offset		= 0x00600000,
83 	}, {
84 		.name		= "U-Boot Config",
85 		.size		= 0x00020000,
86 		.offset		= 0x00760000,
87 	}, {
88 		.name		= "NAS Config",
89 		.size		= 0x00060000,
90 		.offset		= 0x00700000,
91 		.mask_flags	= MTD_WRITEABLE,
92 	},
93 };
94 
95 static struct physmap_flash_data qnap_ts409_nor_flash_data = {
96 	.width		= 1,
97 	.parts		= qnap_ts409_partitions,
98 	.nr_parts	= ARRAY_SIZE(qnap_ts409_partitions)
99 };
100 
101 static struct resource qnap_ts409_nor_flash_resource = {
102 	.flags	= IORESOURCE_MEM,
103 	.start	= QNAP_TS409_NOR_BOOT_BASE,
104 	.end	= QNAP_TS409_NOR_BOOT_BASE + QNAP_TS409_NOR_BOOT_SIZE - 1,
105 };
106 
107 static struct platform_device qnap_ts409_nor_flash = {
108 	.name		= "physmap-flash",
109 	.id		= 0,
110 	.dev		= { .platform_data = &qnap_ts409_nor_flash_data, },
111 	.num_resources	= 1,
112 	.resource	= &qnap_ts409_nor_flash_resource,
113 };
114 
115 /*****************************************************************************
116  * PCI
117  ****************************************************************************/
118 
119 static int __init qnap_ts409_pci_map_irq(const struct pci_dev *dev, u8 slot,
120 	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 	.setup		= orion5x_pci_sys_setup,
140 	.scan		= orion5x_pci_sys_scan_bus,
141 	.map_irq	= qnap_ts409_pci_map_irq,
142 };
143 
144 static int __init qnap_ts409_pci_init(void)
145 {
146 	if (machine_is_ts409())
147 		pci_common_init(&qnap_ts409_pci);
148 
149 	return 0;
150 }
151 
152 subsys_initcall(qnap_ts409_pci_init);
153 
154 /*****************************************************************************
155  * RTC S35390A on I2C bus
156  ****************************************************************************/
157 
158 #define TS409_RTC_GPIO	10
159 
160 static struct i2c_board_info __initdata qnap_ts409_i2c_rtc = {
161 	I2C_BOARD_INFO("s35390a", 0x30),
162 };
163 
164 /*****************************************************************************
165  * LEDs attached to GPIO
166  ****************************************************************************/
167 
168 static struct gpio_led ts409_led_pins[] = {
169 	{
170 		.name		= "ts409:red:sata1",
171 		.gpio		= 4,
172 		.active_low	= 1,
173 	}, {
174 		.name		= "ts409:red:sata2",
175 		.gpio		= 5,
176 		.active_low	= 1,
177 	}, {
178 		.name		= "ts409:red:sata3",
179 		.gpio		= 6,
180 		.active_low	= 1,
181 	}, {
182 		.name		= "ts409:red:sata4",
183 		.gpio		= 7,
184 		.active_low	= 1,
185 	},
186 };
187 
188 static struct gpio_led_platform_data ts409_led_data = {
189 	.leds		= ts409_led_pins,
190 	.num_leds	= ARRAY_SIZE(ts409_led_pins),
191 };
192 
193 static struct platform_device ts409_leds = {
194 	.name	= "leds-gpio",
195 	.id	= -1,
196 	.dev	= {
197 		.platform_data	= &ts409_led_data,
198 	},
199 };
200 
201 /****************************************************************************
202  * GPIO Attached Keys
203  *     Power button is attached to the PIC microcontroller
204  ****************************************************************************/
205 
206 #define QNAP_TS409_GPIO_KEY_RESET	14
207 #define QNAP_TS409_GPIO_KEY_MEDIA	15
208 
209 static struct gpio_keys_button qnap_ts409_buttons[] = {
210 	{
211 		.code		= KEY_RESTART,
212 		.gpio		= QNAP_TS409_GPIO_KEY_RESET,
213 		.desc		= "Reset Button",
214 		.active_low	= 1,
215 	}, {
216 		.code		= KEY_COPY,
217 		.gpio		= QNAP_TS409_GPIO_KEY_MEDIA,
218 		.desc		= "USB Copy Button",
219 		.active_low	= 1,
220 	},
221 };
222 
223 static struct gpio_keys_platform_data qnap_ts409_button_data = {
224 	.buttons	= qnap_ts409_buttons,
225 	.nbuttons	= ARRAY_SIZE(qnap_ts409_buttons),
226 };
227 
228 static struct platform_device qnap_ts409_button_device = {
229 	.name		= "gpio-keys",
230 	.id		= -1,
231 	.num_resources	= 0,
232 	.dev		= {
233 		.platform_data	= &qnap_ts409_button_data,
234 	},
235 };
236 
237 /*****************************************************************************
238  * General Setup
239  ****************************************************************************/
240 static unsigned int ts409_mpp_modes[] __initdata = {
241 	MPP0_UNUSED,
242 	MPP1_UNUSED,
243 	MPP2_UNUSED,
244 	MPP3_UNUSED,
245 	MPP4_GPIO,		/* HDD 1 status */
246 	MPP5_GPIO,		/* HDD 2 status */
247 	MPP6_GPIO,		/* HDD 3 status */
248 	MPP7_GPIO,		/* HDD 4 status */
249 	MPP8_UNUSED,
250 	MPP9_UNUSED,
251 	MPP10_GPIO,		/* RTC int */
252 	MPP11_UNUSED,
253 	MPP12_UNUSED,
254 	MPP13_UNUSED,
255 	MPP14_GPIO,		/* SW_RST */
256 	MPP15_GPIO,		/* USB copy button */
257 	MPP16_UART,		/* UART1 RXD */
258 	MPP17_UART,		/* UART1 TXD */
259 	MPP18_UNUSED,
260 	MPP19_UNUSED,
261 	0,
262 };
263 
264 static void __init qnap_ts409_init(void)
265 {
266 	/*
267 	 * Setup basic Orion functions. Need to be called early.
268 	 */
269 	orion5x_init();
270 
271 	orion5x_mpp_conf(ts409_mpp_modes);
272 
273 	/*
274 	 * Configure peripherals.
275 	 */
276 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
277 				    ORION_MBUS_DEVBUS_BOOT_ATTR,
278 				    QNAP_TS409_NOR_BOOT_BASE,
279 				    QNAP_TS409_NOR_BOOT_SIZE);
280 	platform_device_register(&qnap_ts409_nor_flash);
281 
282 	orion5x_ehci0_init();
283 	qnap_tsx09_find_mac_addr(QNAP_TS409_NOR_BOOT_BASE +
284 				 qnap_ts409_partitions[5].offset,
285 				 qnap_ts409_partitions[5].size);
286 	orion5x_eth_init(&qnap_tsx09_eth_data);
287 	orion5x_i2c_init();
288 	orion5x_uart0_init();
289 	orion5x_uart1_init();
290 
291 	platform_device_register(&qnap_ts409_button_device);
292 
293 	/* Get RTC IRQ and register the chip */
294 	if (gpio_request(TS409_RTC_GPIO, "rtc") == 0) {
295 		if (gpio_direction_input(TS409_RTC_GPIO) == 0)
296 			qnap_ts409_i2c_rtc.irq = gpio_to_irq(TS409_RTC_GPIO);
297 		else
298 			gpio_free(TS409_RTC_GPIO);
299 	}
300 	if (qnap_ts409_i2c_rtc.irq == 0)
301 		pr_warn("qnap_ts409_init: failed to get RTC IRQ\n");
302 	i2c_register_board_info(0, &qnap_ts409_i2c_rtc, 1);
303 	platform_device_register(&ts409_leds);
304 
305 	/* register tsx09 specific power-off method */
306 	pm_power_off = qnap_tsx09_power_off;
307 }
308 
309 MACHINE_START(TS409, "QNAP TS-409")
310 	/* Maintainer:  Sylver Bruneau <sylver.bruneau@gmail.com> */
311 	.atag_offset	= 0x100,
312 	.nr_irqs	= ORION5X_NR_IRQS,
313 	.init_machine	= qnap_ts409_init,
314 	.map_io		= orion5x_map_io,
315 	.init_early	= orion5x_init_early,
316 	.init_irq	= orion5x_init_irq,
317 	.init_time	= orion5x_timer_init,
318 	.fixup		= tag_fixup_mem32,
319 	.restart	= orion5x_restart,
320 MACHINE_END
321