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	.swizzle	= pci_std_swizzle,
 93	.setup		= orion5x_pci_sys_setup,
 94	.scan		= orion5x_pci_sys_scan_bus,
 95	.map_irq	= mss2_pci_map_irq,
 96};
 97
 98static int __init mss2_pci_init(void)
 99{
100	if (machine_is_mss2())
101		pci_common_init(&mss2_pci);
102
103	return 0;
104}
105subsys_initcall(mss2_pci_init);
106
107
108/*****************************************************************************
109 * Ethernet
110 ****************************************************************************/
111
112static struct mv643xx_eth_platform_data mss2_eth_data = {
113	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
114};
115
116/*****************************************************************************
117 * SATA
118 ****************************************************************************/
119
120static struct mv_sata_platform_data mss2_sata_data = {
121	.n_ports	= 2,
122};
123
124/*****************************************************************************
125 * GPIO buttons
126 ****************************************************************************/
127
128#define MSS2_GPIO_KEY_RESET	12
129#define MSS2_GPIO_KEY_POWER	11
130
131static struct gpio_keys_button mss2_buttons[] = {
132	{
133		.code		= KEY_POWER,
134		.gpio		= MSS2_GPIO_KEY_POWER,
135		.desc		= "Power",
136		.active_low	= 1,
137	}, {
138		.code		= KEY_RESTART,
139		.gpio		= MSS2_GPIO_KEY_RESET,
140		.desc		= "Reset",
141		.active_low	= 1,
142	},
143};
144
145static struct gpio_keys_platform_data mss2_button_data = {
146	.buttons	= mss2_buttons,
147	.nbuttons	= ARRAY_SIZE(mss2_buttons),
148};
149
150static struct platform_device mss2_button_device = {
151	.name		= "gpio-keys",
152	.id		= -1,
153	.dev		= {
154		.platform_data	= &mss2_button_data,
155	},
156};
157
158/*****************************************************************************
159 * RTC m41t81 on I2C bus
160 ****************************************************************************/
161
162#define MSS2_GPIO_RTC_IRQ	3
163
164static struct i2c_board_info __initdata mss2_i2c_rtc = {
165	I2C_BOARD_INFO("m41t81", 0x68),
166};
167
168/*****************************************************************************
169 * MSS2 power off method
170 ****************************************************************************/
171/*
172 * On the Maxtor Shared Storage II, the shutdown process is the following :
173 * - Userland modifies U-boot env to tell U-boot to go idle at next boot
174 * - The board reboots
175 * - U-boot starts and go into an idle mode until the user press "power"
176 */
177static void mss2_power_off(void)
178{
179	u32 reg;
180
181	/*
182	 * Enable and issue soft reset
183	 */
184	reg = readl(RSTOUTn_MASK);
185	reg |= 1 << 2;
186	writel(reg, RSTOUTn_MASK);
187
188	reg = readl(CPU_SOFT_RESET);
189	reg |= 1;
190	writel(reg, CPU_SOFT_RESET);
191}
192
193/****************************************************************************
194 * General Setup
195 ****************************************************************************/
196static unsigned int mss2_mpp_modes[] __initdata = {
197	MPP0_GPIO,		/* Power LED */
198	MPP1_GPIO,		/* Error LED */
199	MPP2_UNUSED,
200	MPP3_GPIO,		/* RTC interrupt */
201	MPP4_GPIO,		/* HDD ind. (Single/Dual)*/
202	MPP5_GPIO,		/* HD0 5V control */
203	MPP6_GPIO,		/* HD0 12V control */
204	MPP7_GPIO,		/* HD1 5V control */
205	MPP8_GPIO,		/* HD1 12V control */
206	MPP9_UNUSED,
207	MPP10_GPIO,		/* Fan control */
208	MPP11_GPIO,		/* Power button */
209	MPP12_GPIO,		/* Reset button */
210	MPP13_UNUSED,
211	MPP14_SATA_LED,		/* SATA 0 active */
212	MPP15_SATA_LED,		/* SATA 1 active */
213	MPP16_UNUSED,
214	MPP17_UNUSED,
215	MPP18_UNUSED,
216	MPP19_UNUSED,
217	0,
218};
219
220static void __init mss2_init(void)
221{
222	/* Setup basic Orion functions. Need to be called early. */
223	orion5x_init();
224
225	orion5x_mpp_conf(mss2_mpp_modes);
226
227	/*
228	 * MPP[20] Unused
229	 * MPP[21] PCI clock
230	 * MPP[22] USB 0 over current
231	 * MPP[23] USB 1 over current
232	 */
233
234	/*
235	 * Configure peripherals.
236	 */
237	orion5x_ehci0_init();
238	orion5x_ehci1_init();
239	orion5x_eth_init(&mss2_eth_data);
240	orion5x_i2c_init();
241	orion5x_sata_init(&mss2_sata_data);
242	orion5x_uart0_init();
243	orion5x_xor_init();
244
245	orion5x_setup_dev_boot_win(MSS2_NOR_BOOT_BASE, MSS2_NOR_BOOT_SIZE);
246	platform_device_register(&mss2_nor_flash);
247
248	platform_device_register(&mss2_button_device);
249
250	if (gpio_request(MSS2_GPIO_RTC_IRQ, "rtc") == 0) {
251		if (gpio_direction_input(MSS2_GPIO_RTC_IRQ) == 0)
252			mss2_i2c_rtc.irq = gpio_to_irq(MSS2_GPIO_RTC_IRQ);
253		else
254			gpio_free(MSS2_GPIO_RTC_IRQ);
255	}
256	i2c_register_board_info(0, &mss2_i2c_rtc, 1);
257
258	/* register mss2 specific power-off method */
259	pm_power_off = mss2_power_off;
260}
261
262MACHINE_START(MSS2, "Maxtor Shared Storage II")
263	/* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com> */
264	.boot_params	= 0x00000100,
265	.init_machine	= mss2_init,
266	.map_io		= orion5x_map_io,
267	.init_early	= orion5x_init_early,
268	.init_irq	= orion5x_init_irq,
269	.timer		= &orion5x_timer,
270	.fixup		= tag_fixup_mem32
271MACHINE_END