1/*
2 *  Atheros AP83 board support
3 *
4 *  Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
5 *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
6 *
7 *  This program is free software; you can redistribute it and/or modify it
8 *  under the terms of the GNU General Public License version 2 as published
9 *  by the Free Software Foundation.
10 */
11
12#include <linux/delay.h>
13#include <linux/platform_device.h>
14#include <linux/mtd/mtd.h>
15#include <linux/mtd/partitions.h>
16#include <linux/mtd/physmap.h>
17#include <linux/spi/spi.h>
18#include <linux/spi/spi_gpio.h>
19#include <linux/spi/vsc7385.h>
20
21#include <asm/mach-ath79/ar71xx_regs.h>
22#include <asm/mach-ath79/ath79.h>
23
24#include "dev-eth.h"
25#include "dev-gpio-buttons.h"
26#include "dev-leds-gpio.h"
27#include "dev-usb.h"
28#include "dev-wmac.h"
29#include "machtypes.h"
30
31#define AP83_GPIO_LED_WLAN	6
32#define AP83_GPIO_LED_POWER	14
33#define AP83_GPIO_LED_JUMPSTART	15
34#define AP83_GPIO_BTN_JUMPSTART	12
35#define AP83_GPIO_BTN_RESET	21
36
37#define AP83_050_GPIO_VSC7385_CS	1
38#define AP83_050_GPIO_VSC7385_MISO	3
39#define AP83_050_GPIO_VSC7385_MOSI	16
40#define AP83_050_GPIO_VSC7385_SCK	17
41
42#define AP83_KEYS_POLL_INTERVAL		20	/* msecs */
43#define AP83_KEYS_DEBOUNCE_INTERVAL	(3 * AP83_KEYS_POLL_INTERVAL)
44
45static struct mtd_partition ap83_flash_partitions[] = {
46	{
47		.name		= "u-boot",
48		.offset		= 0,
49		.size		= 0x040000,
50		.mask_flags	= MTD_WRITEABLE,
51	}, {
52		.name		= "u-boot-env",
53		.offset		= 0x040000,
54		.size		= 0x020000,
55		.mask_flags	= MTD_WRITEABLE,
56	}, {
57		.name		= "kernel",
58		.offset		= 0x060000,
59		.size		= 0x140000,
60	}, {
61		.name		= "rootfs",
62		.offset		= 0x1a0000,
63		.size		= 0x650000,
64	}, {
65		.name		= "art",
66		.offset		= 0x7f0000,
67		.size		= 0x010000,
68		.mask_flags	= MTD_WRITEABLE,
69	}, {
70		.name		= "firmware",
71		.offset		= 0x060000,
72		.size		= 0x790000,
73	}
74};
75
76static struct physmap_flash_data ap83_flash_data = {
77	.width		= 2,
78	.parts		= ap83_flash_partitions,
79	.nr_parts	= ARRAY_SIZE(ap83_flash_partitions),
80};
81
82static struct resource ap83_flash_resources[] = {
83	[0] = {
84		.start	= AR71XX_SPI_BASE,
85		.end	= AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
86		.flags	= IORESOURCE_MEM,
87	},
88};
89
90static struct platform_device ap83_flash_device = {
91	.name		= "ar91xx-flash",
92	.id		= -1,
93	.resource	= ap83_flash_resources,
94	.num_resources	= ARRAY_SIZE(ap83_flash_resources),
95	.dev		= {
96		.platform_data = &ap83_flash_data,
97	}
98};
99
100static struct gpio_led ap83_leds_gpio[] __initdata = {
101	{
102		.name		= "ap83:green:jumpstart",
103		.gpio		= AP83_GPIO_LED_JUMPSTART,
104		.active_low	= 0,
105	}, {
106		.name		= "ap83:green:power",
107		.gpio		= AP83_GPIO_LED_POWER,
108		.active_low	= 0,
109	}, {
110		.name		= "ap83:green:wlan",
111		.gpio		= AP83_GPIO_LED_WLAN,
112		.active_low	= 0,
113	},
114};
115
116static struct gpio_keys_button ap83_gpio_keys[] __initdata = {
117	{
118		.desc		= "soft_reset",
119		.type		= EV_KEY,
120		.code		= KEY_RESTART,
121		.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
122		.gpio		= AP83_GPIO_BTN_RESET,
123		.active_low	= 1,
124	}, {
125		.desc		= "jumpstart",
126		.type		= EV_KEY,
127		.code		= KEY_WPS_BUTTON,
128		.debounce_interval = AP83_KEYS_DEBOUNCE_INTERVAL,
129		.gpio		= AP83_GPIO_BTN_JUMPSTART,
130		.active_low	= 1,
131	}
132};
133
134static struct resource ap83_040_spi_resources[] = {
135	[0] = {
136		.start	= AR71XX_SPI_BASE,
137		.end	= AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
138		.flags	= IORESOURCE_MEM,
139	},
140};
141
142static struct platform_device ap83_040_spi_device = {
143	.name		= "ap83-spi",
144	.id		= 0,
145	.resource	= ap83_040_spi_resources,
146	.num_resources	= ARRAY_SIZE(ap83_040_spi_resources),
147};
148
149static struct spi_gpio_platform_data ap83_050_spi_data = {
150	.miso	= AP83_050_GPIO_VSC7385_MISO,
151	.mosi	= AP83_050_GPIO_VSC7385_MOSI,
152	.sck	= AP83_050_GPIO_VSC7385_SCK,
153	.num_chipselect = 1,
154};
155
156static struct platform_device ap83_050_spi_device = {
157	.name		= "spi_gpio",
158	.id		= 0,
159	.dev		= {
160		.platform_data = &ap83_050_spi_data,
161	}
162};
163
164static void ap83_vsc7385_reset(void)
165{
166	ath79_device_reset_set(AR71XX_RESET_GE1_PHY);
167	udelay(10);
168	ath79_device_reset_clear(AR71XX_RESET_GE1_PHY);
169	mdelay(50);
170}
171
172static struct vsc7385_platform_data ap83_vsc7385_data = {
173	.reset		= ap83_vsc7385_reset,
174	.ucode_name	= "vsc7385_ucode_ap83.bin",
175	.mac_cfg = {
176		.tx_ipg		= 6,
177		.bit2		= 0,
178		.clk_sel	= 3,
179	},
180};
181
182static struct spi_board_info ap83_spi_info[] = {
183	{
184		.bus_num	= 0,
185		.chip_select	= 0,
186		.max_speed_hz	= 25000000,
187		.modalias	= "spi-vsc7385",
188		.platform_data	= &ap83_vsc7385_data,
189		.controller_data = (void *) AP83_050_GPIO_VSC7385_CS,
190	}
191};
192
193static void __init ap83_generic_setup(void)
194{
195	u8 *eeprom = (u8 *) KSEG1ADDR(0x1fff1000);
196
197	ath79_register_mdio(0, 0xfffffffe);
198
199	ath79_init_mac(ath79_eth0_data.mac_addr, eeprom, 0);
200	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
201	ath79_eth0_data.phy_mask = 0x1;
202
203	ath79_register_eth(0);
204
205	ath79_init_mac(ath79_eth1_data.mac_addr, eeprom, 1);
206	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
207	ath79_eth1_data.speed = SPEED_1000;
208	ath79_eth1_data.duplex = DUPLEX_FULL;
209
210	ath79_eth1_pll_data.pll_1000 = 0x1f000000;
211
212	ath79_register_eth(1);
213
214	ath79_register_leds_gpio(-1, ARRAY_SIZE(ap83_leds_gpio),
215					ap83_leds_gpio);
216
217	ath79_register_gpio_keys_polled(-1, AP83_KEYS_POLL_INTERVAL,
218					 ARRAY_SIZE(ap83_gpio_keys),
219					 ap83_gpio_keys);
220
221	ath79_register_usb();
222
223	ath79_register_wmac(eeprom, NULL);
224
225	platform_device_register(&ap83_flash_device);
226
227	spi_register_board_info(ap83_spi_info, ARRAY_SIZE(ap83_spi_info));
228}
229
230static void ap83_040_flash_lock(struct platform_device *pdev)
231{
232	ath79_flash_acquire();
233}
234
235static void ap83_040_flash_unlock(struct platform_device *pdev)
236{
237	ath79_flash_release();
238}
239
240static void __init ap83_040_setup(void)
241{
242	ap83_flash_data.lock = ap83_040_flash_lock;
243	ap83_flash_data.unlock = ap83_040_flash_unlock;
244	ap83_generic_setup();
245	platform_device_register(&ap83_040_spi_device);
246}
247
248static void __init ap83_050_setup(void)
249{
250	ap83_generic_setup();
251	platform_device_register(&ap83_050_spi_device);
252}
253
254static void __init ap83_setup(void)
255{
256	u8 *board_id = (u8 *) KSEG1ADDR(0x1fff1244);
257	unsigned int board_version;
258
259	board_version = (unsigned int)(board_id[0] - '0');
260	board_version += ((unsigned int)(board_id[1] - '0')) * 10;
261
262	switch (board_version) {
263	case 40:
264		ap83_040_setup();
265		break;
266	case 50:
267		ap83_050_setup();
268		break;
269	default:
270		printk(KERN_WARNING "AP83-%03u board is not yet supported\n",
271		       board_version);
272	}
273}
274
275MIPS_MACHINE(ATH79_MACH_AP83, "AP83", "Atheros AP83", ap83_setup);
276