1/*
2 * arch/arm/mach-orion5x/rd88f5182-setup.c
3 *
4 * Marvell Orion-NAS Reference Design Setup
5 *
6 * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
7 *
8 * This file is licensed under the terms of the GNU General Public
9 * License version 2.  This program is licensed "as is" without any
10 * warranty of any kind, whether express or implied.
11 */
12#include <linux/gpio.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16#include <linux/pci.h>
17#include <linux/irq.h>
18#include <linux/mtd/physmap.h>
19#include <linux/mv643xx_eth.h>
20#include <linux/ata_platform.h>
21#include <linux/i2c.h>
22#include <linux/leds.h>
23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25#include <asm/mach/pci.h>
26#include <mach/orion5x.h>
27#include "common.h"
28#include "mpp.h"
29
30/*****************************************************************************
31 * RD-88F5182 Info
32 ****************************************************************************/
33
34/*
35 * 512K NOR flash Device bus boot chip select
36 */
37
38#define RD88F5182_NOR_BOOT_BASE		0xf4000000
39#define RD88F5182_NOR_BOOT_SIZE		SZ_512K
40
41/*
42 * 16M NOR flash on Device bus chip select 1
43 */
44
45#define RD88F5182_NOR_BASE		0xfc000000
46#define RD88F5182_NOR_SIZE		SZ_16M
47
48/*
49 * PCI
50 */
51
52#define RD88F5182_PCI_SLOT0_OFFS	7
53#define RD88F5182_PCI_SLOT0_IRQ_A_PIN	7
54#define RD88F5182_PCI_SLOT0_IRQ_B_PIN	6
55
56/*****************************************************************************
57 * 16M NOR Flash on Device bus CS1
58 ****************************************************************************/
59
60static struct physmap_flash_data rd88f5182_nor_flash_data = {
61	.width		= 1,
62};
63
64static struct resource rd88f5182_nor_flash_resource = {
65	.flags			= IORESOURCE_MEM,
66	.start			= RD88F5182_NOR_BASE,
67	.end			= RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
68};
69
70static struct platform_device rd88f5182_nor_flash = {
71	.name			= "physmap-flash",
72	.id			= 0,
73	.dev		= {
74		.platform_data	= &rd88f5182_nor_flash_data,
75	},
76	.num_resources		= 1,
77	.resource		= &rd88f5182_nor_flash_resource,
78};
79
80/*****************************************************************************
81 * Use GPIO LED as CPU active indication
82 ****************************************************************************/
83
84#define RD88F5182_GPIO_LED		0
85
86static struct gpio_led rd88f5182_gpio_led_pins[] = {
87	{
88		.name		= "rd88f5182:cpu",
89		.default_trigger = "cpu0",
90		.gpio		= RD88F5182_GPIO_LED,
91	},
92};
93
94static struct gpio_led_platform_data rd88f5182_gpio_led_data = {
95	.leds		= rd88f5182_gpio_led_pins,
96	.num_leds	= ARRAY_SIZE(rd88f5182_gpio_led_pins),
97};
98
99static struct platform_device rd88f5182_gpio_leds = {
100	.name	= "leds-gpio",
101	.id	= -1,
102	.dev	= {
103		.platform_data = &rd88f5182_gpio_led_data,
104	},
105};
106
107/*****************************************************************************
108 * PCI
109 ****************************************************************************/
110
111static void __init rd88f5182_pci_preinit(void)
112{
113	int pin;
114
115	/*
116	 * Configure PCI GPIO IRQ pins
117	 */
118	pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
119	if (gpio_request(pin, "PCI IntA") == 0) {
120		if (gpio_direction_input(pin) == 0) {
121			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
122		} else {
123			printk(KERN_ERR "rd88f5182_pci_preinit failed to "
124					"set_irq_type pin %d\n", pin);
125			gpio_free(pin);
126		}
127	} else {
128		printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
129	}
130
131	pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
132	if (gpio_request(pin, "PCI IntB") == 0) {
133		if (gpio_direction_input(pin) == 0) {
134			irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
135		} else {
136			printk(KERN_ERR "rd88f5182_pci_preinit failed to "
137					"set_irq_type pin %d\n", pin);
138			gpio_free(pin);
139		}
140	} else {
141		printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
142	}
143}
144
145static int __init rd88f5182_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 - RD88F5182_PCI_SLOT0_OFFS) {
161	case 0:
162		if (pin == 1)
163			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
164		else
165			return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
166	default:
167		return -1;
168	}
169}
170
171static struct hw_pci rd88f5182_pci __initdata = {
172	.nr_controllers	= 2,
173	.preinit	= rd88f5182_pci_preinit,
174	.setup		= orion5x_pci_sys_setup,
175	.scan		= orion5x_pci_sys_scan_bus,
176	.map_irq	= rd88f5182_pci_map_irq,
177};
178
179static int __init rd88f5182_pci_init(void)
180{
181	if (machine_is_rd88f5182())
182		pci_common_init(&rd88f5182_pci);
183
184	return 0;
185}
186
187subsys_initcall(rd88f5182_pci_init);
188
189/*****************************************************************************
190 * Ethernet
191 ****************************************************************************/
192
193static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
194	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
195};
196
197/*****************************************************************************
198 * RTC DS1338 on I2C bus
199 ****************************************************************************/
200static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
201	I2C_BOARD_INFO("ds1338", 0x68),
202};
203
204/*****************************************************************************
205 * Sata
206 ****************************************************************************/
207static struct mv_sata_platform_data rd88f5182_sata_data = {
208	.n_ports	= 2,
209};
210
211/*****************************************************************************
212 * General Setup
213 ****************************************************************************/
214static unsigned int rd88f5182_mpp_modes[] __initdata = {
215	MPP0_GPIO,		/* Debug Led */
216	MPP1_GPIO,		/* Reset Switch */
217	MPP2_UNUSED,
218	MPP3_GPIO,		/* RTC Int */
219	MPP4_GPIO,
220	MPP5_GPIO,
221	MPP6_GPIO,		/* PCI_intA */
222	MPP7_GPIO,		/* PCI_intB */
223	MPP8_UNUSED,
224	MPP9_UNUSED,
225	MPP10_UNUSED,
226	MPP11_UNUSED,
227	MPP12_SATA_LED,		/* SATA 0 presence */
228	MPP13_SATA_LED,		/* SATA 1 presence */
229	MPP14_SATA_LED,		/* SATA 0 active */
230	MPP15_SATA_LED,		/* SATA 1 active */
231	MPP16_UNUSED,
232	MPP17_UNUSED,
233	MPP18_UNUSED,
234	MPP19_UNUSED,
235	0,
236};
237
238static void __init rd88f5182_init(void)
239{
240	/*
241	 * Setup basic Orion functions. Need to be called early.
242	 */
243	orion5x_init();
244
245	orion5x_mpp_conf(rd88f5182_mpp_modes);
246
247	/*
248	 * MPP[20] PCI Clock to MV88F5182
249	 * MPP[21] PCI Clock to mini PCI CON11
250	 * MPP[22] USB 0 over current indication
251	 * MPP[23] USB 1 over current indication
252	 * MPP[24] USB 1 over current enable
253	 * MPP[25] USB 0 over current enable
254	 */
255
256	/*
257	 * Configure peripherals.
258	 */
259	orion5x_ehci0_init();
260	orion5x_ehci1_init();
261	orion5x_eth_init(&rd88f5182_eth_data);
262	orion5x_i2c_init();
263	orion5x_sata_init(&rd88f5182_sata_data);
264	orion5x_uart0_init();
265	orion5x_xor_init();
266
267	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
268				    ORION_MBUS_DEVBUS_BOOT_ATTR,
269				    RD88F5182_NOR_BOOT_BASE,
270				    RD88F5182_NOR_BOOT_SIZE);
271	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_TARGET(1),
272				    ORION_MBUS_DEVBUS_ATTR(1),
273				    RD88F5182_NOR_BASE,
274				    RD88F5182_NOR_SIZE);
275	platform_device_register(&rd88f5182_nor_flash);
276	platform_device_register(&rd88f5182_gpio_leds);
277
278	i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
279}
280
281MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
282	/* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
283	.atag_offset	= 0x100,
284	.init_machine	= rd88f5182_init,
285	.map_io		= orion5x_map_io,
286	.init_early	= orion5x_init_early,
287	.init_irq	= orion5x_init_irq,
288	.init_time	= orion5x_timer_init,
289	.restart	= orion5x_restart,
290MACHINE_END
291