1 /*
2 * Maxtor Shared Storage II Board Setup
3 *
4 * Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.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/leds.h>
20 #include <linux/gpio_keys.h>
21 #include <linux/input.h>
22 #include <linux/i2c.h>
23 #include <linux/ata_platform.h>
24 #include <linux/gpio.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
32 #define MSS2_NOR_BOOT_BASE 0xff800000
33 #define MSS2_NOR_BOOT_SIZE SZ_256K
34
35 /*****************************************************************************
36 * Maxtor Shared Storage II Info
37 ****************************************************************************/
38
39 /*
40 * Maxtor Shared Storage II hardware :
41 * - Marvell 88F5182-A2 C500
42 * - Marvell 88E1111 Gigabit Ethernet PHY
43 * - RTC M41T81 (@0x68) on I2C bus
44 * - 256KB NOR flash
45 * - 64MB of RAM
46 */
47
48 /*****************************************************************************
49 * 256KB NOR Flash on BOOT Device
50 ****************************************************************************/
51
52 static struct physmap_flash_data mss2_nor_flash_data = {
53 .width = 1,
54 };
55
56 static struct resource mss2_nor_flash_resource = {
57 .flags = IORESOURCE_MEM,
58 .start = MSS2_NOR_BOOT_BASE,
59 .end = MSS2_NOR_BOOT_BASE + MSS2_NOR_BOOT_SIZE - 1,
60 };
61
62 static struct platform_device mss2_nor_flash = {
63 .name = "physmap-flash",
64 .id = 0,
65 .dev = {
66 .platform_data = &mss2_nor_flash_data,
67 },
68 .resource = &mss2_nor_flash_resource,
69 .num_resources = 1,
70 };
71
72 /****************************************************************************
73 * PCI setup
74 ****************************************************************************/
mss2_pci_map_irq(struct pci_dev * dev,u8 slot,u8 pin)75 static int __init mss2_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
76 {
77 int irq;
78
79 /*
80 * Check for devices with hard-wired IRQs.
81 */
82 irq = orion5x_pci_map_irq(dev, slot, pin);
83 if (irq != -1)
84 return irq;
85
86 return -1;
87 }
88
89 static struct hw_pci mss2_pci __initdata = {
90 .nr_controllers = 2,
91 .swizzle = pci_std_swizzle,
92 .setup = orion5x_pci_sys_setup,
93 .scan = orion5x_pci_sys_scan_bus,
94 .map_irq = mss2_pci_map_irq,
95 };
96
mss2_pci_init(void)97 static int __init mss2_pci_init(void)
98 {
99 if (machine_is_mss2())
100 pci_common_init(&mss2_pci);
101
102 return 0;
103 }
104 subsys_initcall(mss2_pci_init);
105
106
107 /*****************************************************************************
108 * Ethernet
109 ****************************************************************************/
110
111 static struct mv643xx_eth_platform_data mss2_eth_data = {
112 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
113 };
114
115 /*****************************************************************************
116 * SATA
117 ****************************************************************************/
118
119 static struct mv_sata_platform_data mss2_sata_data = {
120 .n_ports = 2,
121 };
122
123 /*****************************************************************************
124 * GPIO buttons
125 ****************************************************************************/
126
127 #define MSS2_GPIO_KEY_RESET 12
128 #define MSS2_GPIO_KEY_POWER 11
129
130 static struct gpio_keys_button mss2_buttons[] = {
131 {
132 .code = KEY_POWER,
133 .gpio = MSS2_GPIO_KEY_POWER,
134 .desc = "Power",
135 .active_low = 1,
136 }, {
137 .code = KEY_RESTART,
138 .gpio = MSS2_GPIO_KEY_RESET,
139 .desc = "Reset",
140 .active_low = 1,
141 },
142 };
143
144 static struct gpio_keys_platform_data mss2_button_data = {
145 .buttons = mss2_buttons,
146 .nbuttons = ARRAY_SIZE(mss2_buttons),
147 };
148
149 static struct platform_device mss2_button_device = {
150 .name = "gpio-keys",
151 .id = -1,
152 .dev = {
153 .platform_data = &mss2_button_data,
154 },
155 };
156
157 /*****************************************************************************
158 * RTC m41t81 on I2C bus
159 ****************************************************************************/
160
161 #define MSS2_GPIO_RTC_IRQ 3
162
163 static struct i2c_board_info __initdata mss2_i2c_rtc = {
164 I2C_BOARD_INFO("m41t81", 0x68),
165 };
166
167 /*****************************************************************************
168 * MSS2 power off method
169 ****************************************************************************/
170 /*
171 * On the Maxtor Shared Storage II, the shutdown process is the following :
172 * - Userland modifies U-boot env to tell U-boot to go idle at next boot
173 * - The board reboots
174 * - U-boot starts and go into an idle mode until the user press "power"
175 */
mss2_power_off(void)176 static void mss2_power_off(void)
177 {
178 u32 reg;
179
180 /*
181 * Enable and issue soft reset
182 */
183 reg = readl(CPU_RESET_MASK);
184 reg |= 1 << 2;
185 writel(reg, CPU_RESET_MASK);
186
187 reg = readl(CPU_SOFT_RESET);
188 reg |= 1;
189 writel(reg, CPU_SOFT_RESET);
190 }
191
192 /****************************************************************************
193 * General Setup
194 ****************************************************************************/
195 static struct orion5x_mpp_mode mss2_mpp_modes[] __initdata = {
196 { 0, MPP_GPIO }, /* Power LED */
197 { 1, MPP_GPIO }, /* Error LED */
198 { 2, MPP_UNUSED },
199 { 3, MPP_GPIO }, /* RTC interrupt */
200 { 4, MPP_GPIO }, /* HDD ind. (Single/Dual)*/
201 { 5, MPP_GPIO }, /* HD0 5V control */
202 { 6, MPP_GPIO }, /* HD0 12V control */
203 { 7, MPP_GPIO }, /* HD1 5V control */
204 { 8, MPP_GPIO }, /* HD1 12V control */
205 { 9, MPP_UNUSED },
206 { 10, MPP_GPIO }, /* Fan control */
207 { 11, MPP_GPIO }, /* Power button */
208 { 12, MPP_GPIO }, /* Reset button */
209 { 13, MPP_UNUSED },
210 { 14, MPP_SATA_LED }, /* SATA 0 active */
211 { 15, MPP_SATA_LED }, /* SATA 1 active */
212 { 16, MPP_UNUSED },
213 { 17, MPP_UNUSED },
214 { 18, MPP_UNUSED },
215 { 19, MPP_UNUSED },
216 { -1 },
217 };
218
mss2_init(void)219 static void __init mss2_init(void)
220 {
221 /* Setup basic Orion functions. Need to be called early. */
222 orion5x_init();
223
224 orion5x_mpp_conf(mss2_mpp_modes);
225
226 /*
227 * MPP[20] Unused
228 * MPP[21] PCI clock
229 * MPP[22] USB 0 over current
230 * MPP[23] USB 1 over current
231 */
232
233 /*
234 * Configure peripherals.
235 */
236 orion5x_ehci0_init();
237 orion5x_ehci1_init();
238 orion5x_eth_init(&mss2_eth_data);
239 orion5x_i2c_init();
240 orion5x_sata_init(&mss2_sata_data);
241 orion5x_uart0_init();
242 orion5x_xor_init();
243
244 orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE);
245 platform_device_register(&mss2_nor_flash);
246
247 platform_device_register(&mss2_button_device);
248
249 if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
250 if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
251 mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
252 else
253 gpio_free(MSS2_GPIO_RTC_IRQ);
254 }
255 i2c_register_board_info(0, &mss2_i2c_rtc, 1);
256
257 /* register mss2 specific power-off method */
258 pm_power_off = mss2_power_off;
259 }
260
261 MACHINE_START(MSS2, "Maxtor Shared Storage II")
262 /* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
263 .phys_io = ORION5X_REGS_PHYS_BASE,
264 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
265 .boot_params = 0x00000100,
266 .init_machine = mss2_init,
267 .map_io = orion5x_map_io,
268 .init_irq = orion5x_init_irq,
269 .timer = &orion5x_timer,
270 .fixup = tag_fixup_mem32
271 MACHINE_END
272