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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 <mach/bridge-regs.h>
30#include "common.h"
31#include "mpp.h"
32
33#define MSS2_NOR_BOOT_BASE 0xff800000
34#define MSS2_NOR_BOOT_SIZE SZ_256K
35
36/*****************************************************************************
37 * Maxtor Shared Storage II Info
38 ****************************************************************************/
39
40/*
41 * Maxtor Shared Storage II hardware :
42 * - Marvell 88F5182-A2 C500
43 * - Marvell 88E1111 Gigabit Ethernet PHY
44 * - RTC M41T81 (@0x68) on I2C bus
45 * - 256KB NOR flash
46 * - 64MB of RAM
47 */
48
49/*****************************************************************************
50 * 256KB NOR Flash on BOOT Device
51 ****************************************************************************/
52
53static struct physmap_flash_data mss2_nor_flash_data = {
54 .width = 1,
55};
56
57static struct resource mss2_nor_flash_resource = {
58 .flags = IORESOURCE_MEM,
59 .start = MSS2_NOR_BOOT_BASE,
60 .end = MSS2_NOR_BOOT_BASE + MSS2_NOR_BOOT_SIZE - 1,
61};
62
63static struct platform_device mss2_nor_flash = {
64 .name = "physmap-flash",
65 .id = 0,
66 .dev = {
67 .platform_data = &mss2_nor_flash_data,
68 },
69 .resource = &mss2_nor_flash_resource,
70 .num_resources = 1,
71};
72
73/****************************************************************************
74 * PCI setup
75 ****************************************************************************/
76static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
77{
78 int irq;
79
80 /*
81 * Check for devices with hard-wired IRQs.
82 */
83 irq = orion5x_pci_map_irq(dev, slot, pin);
84 if (irq != -1)
85 return irq;
86
87 return -1;
88}
89
90static struct hw_pci mss2_pci __initdata = {
91 .nr_controllers = 2,
92 .setup = orion5x_pci_sys_setup,
93 .scan = orion5x_pci_sys_scan_bus,
94 .map_irq = mss2_pci_map_irq,
95};
96
97static int __init mss2_pci_init(void)
98{
99 if (machine_is_mss2())
100 pci_common_init(&mss2_pci);
101
102 return 0;
103}
104subsys_initcall(mss2_pci_init);
105
106
107/*****************************************************************************
108 * Ethernet
109 ****************************************************************************/
110
111static struct mv643xx_eth_platform_data mss2_eth_data = {
112 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
113};
114
115/*****************************************************************************
116 * SATA
117 ****************************************************************************/
118
119static 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
130static 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
144static struct gpio_keys_platform_data mss2_button_data = {
145 .buttons = mss2_buttons,
146 .nbuttons = ARRAY_SIZE(mss2_buttons),
147};
148
149static 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
163static 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 */
176static void mss2_power_off(void)
177{
178 u32 reg;
179
180 /*
181 * Enable and issue soft reset
182 */
183 reg = readl(RSTOUTn_MASK);
184 reg |= 1 << 2;
185 writel(reg, RSTOUTn_MASK);
186
187 reg = readl(CPU_SOFT_RESET);
188 reg |= 1;
189 writel(reg, CPU_SOFT_RESET);
190}
191
192/****************************************************************************
193 * General Setup
194 ****************************************************************************/
195static unsigned int mss2_mpp_modes[] __initdata = {
196 MPP0_GPIO, /* Power LED */
197 MPP1_GPIO, /* Error LED */
198 MPP2_UNUSED,
199 MPP3_GPIO, /* RTC interrupt */
200 MPP4_GPIO, /* HDD ind. (Single/Dual)*/
201 MPP5_GPIO, /* HD0 5V control */
202 MPP6_GPIO, /* HD0 12V control */
203 MPP7_GPIO, /* HD1 5V control */
204 MPP8_GPIO, /* HD1 12V control */
205 MPP9_UNUSED,
206 MPP10_GPIO, /* Fan control */
207 MPP11_GPIO, /* Power button */
208 MPP12_GPIO, /* Reset button */
209 MPP13_UNUSED,
210 MPP14_SATA_LED, /* SATA 0 active */
211 MPP15_SATA_LED, /* SATA 1 active */
212 MPP16_UNUSED,
213 MPP17_UNUSED,
214 MPP18_UNUSED,
215 MPP19_UNUSED,
216 0,
217};
218
219static 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 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
245 ORION_MBUS_DEVBUS_BOOT_ATTR,
246 MSS2_NOR_BOOT_BASE,
247 MSS2_NOR_BOOT_SIZE);
248 platform_device_register(&mss2_nor_flash);
249
250 platform_device_register(&mss2_button_device);
251
252 if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
253 if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
254 mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
255 else
256 gpio_free(MSS2_GPIO_RTC_IRQ);
257 }
258 i2c_register_board_info(0, &mss2_i2c_rtc, 1);
259
260 /* register mss2 specific power-off method */
261 pm_power_off = mss2_power_off;
262}
263
264MACHINE_START(MSS2, "Maxtor Shared Storage II")
265 /* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
266 .atag_offset = 0x100,
267 .init_machine = mss2_init,
268 .map_io = orion5x_map_io,
269 .init_early = orion5x_init_early,
270 .init_irq = orion5x_init_irq,
271 .init_time = orion5x_timer_init,
272 .fixup = tag_fixup_mem32,
273 .restart = orion5x_restart,
274MACHINE_END