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 ***************************************************************************/
49static 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
79static 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
85static 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
91static 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
109static 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
145static 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
170static 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
178static 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
186subsys_initcall(qnap_ts209_pci_init);
187
188/*****************************************************************************
189 * RTC S35390A on I2C bus
190 ****************************************************************************/
191
192#define TS209_RTC_GPIO	3
193
194static 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
207static 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
221static struct gpio_keys_platform_data qnap_ts209_button_data = {
222	.buttons	= qnap_ts209_buttons,
223	.nbuttons	= ARRAY_SIZE(qnap_ts209_buttons),
224};
225
226static 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 ****************************************************************************/
238static struct mv_sata_platform_data qnap_ts209_sata_data = {
239	.n_ports	= 2,
240};
241
242/*****************************************************************************
243
244 * General Setup
245 ****************************************************************************/
246static 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
270static 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
324MACHINE_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,
334MACHINE_END
335