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LeafOS / LeafOS-Devices / android_kernel_samsung_gta4xl / 84115e1cd4a3614c4e566d4cce31381dce3dbef9 / . / arch / arm / mach-orion / rd88f5182-setup.c
blob: 026d74325d0190f8e31e6201da1f862402949403 [file] [log] [blame]
Ronen Shitrit817eb212007-10-17 14:51:34 -0400[diff] [blame]1/*
2 * arch/arm/mach-orion/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
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/i2c.h>
21#include <asm/mach-types.h>
22#include <asm/gpio.h>
23#include <asm/leds.h>
24#include <asm/mach/arch.h>
25#include <asm/mach/pci.h>
26#include <asm/arch/orion.h>
27#include <asm/arch/platform.h>
28#include "common.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 * GPIO Debug LED
58 */
59
60#define RD88F5182_GPIO_DBG_LED 0
61
62/*****************************************************************************
63 * 16M NOR Flash on Device bus CS1
64 ****************************************************************************/
65
66static struct physmap_flash_data rd88f5182_nor_flash_data = {
67 .width = 1,
68};
69
70static struct resource rd88f5182_nor_flash_resource = {
71 .flags = IORESOURCE_MEM,
72 .start = RD88F5182_NOR_BASE,
73 .end = RD88F5182_NOR_BASE + RD88F5182_NOR_SIZE - 1,
74};
75
76static struct platform_device rd88f5182_nor_flash = {
77 .name = "physmap-flash",
78 .id = 0,
79 .dev = {
80 .platform_data = &rd88f5182_nor_flash_data,
81 },
82 .num_resources = 1,
83 .resource = &rd88f5182_nor_flash_resource,
84};
85
86#ifdef CONFIG_LEDS
87
88/*****************************************************************************
89 * Use GPIO debug led as CPU active indication
90 ****************************************************************************/
91
92static void rd88f5182_dbgled_event(led_event_t evt)
93{
94 int val;
95
96 if (evt == led_idle_end)
97 val = 1;
98 else if (evt == led_idle_start)
99 val = 0;
100 else
101 return;
102
103 gpio_set_value(RD88F5182_GPIO_DBG_LED, val);
104}
105
106static int __init rd88f5182_dbgled_init(void)
107{
108 int pin;
109
110 if (machine_is_rd88f5182()) {
111 pin = RD88F5182_GPIO_DBG_LED;
112
113 if (gpio_request(pin, "DBGLED") == 0) {
114 if (gpio_direction_output(pin, 0) != 0) {
115 printk(KERN_ERR "rd88f5182_dbgled_init failed "
116 "to set output pin %d\n", pin);
117 gpio_free(pin);
118 return 0;
119 }
120 } else {
121 printk(KERN_ERR "rd88f5182_dbgled_init failed "
122 "to request gpio %d\n", pin);
123 return 0;
124 }
125
126 leds_event = rd88f5182_dbgled_event;
127 }
128 return 0;
129}
130
131__initcall(rd88f5182_dbgled_init);
132
133#endif
134
135/*****************************************************************************
136 * PCI
137 ****************************************************************************/
138
139void __init rd88f5182_pci_preinit(void)
140{
141 int pin;
142
143 /*
144 * Configure PCI GPIO IRQ pins
145 */
146 pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
147 if (gpio_request(pin, "PCI IntA") == 0) {
148 if (gpio_direction_input(pin) == 0) {
149 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
150 } else {
151 printk(KERN_ERR "rd88f5182_pci_preinit faield to "
152 "set_irq_type pin %d\n", pin);
153 gpio_free(pin);
154 }
155 } else {
156 printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
157 }
158
159 pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
160 if (gpio_request(pin, "PCI IntB") == 0) {
161 if (gpio_direction_input(pin) == 0) {
162 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
163 } else {
164 printk(KERN_ERR "rd88f5182_pci_preinit faield to "
165 "set_irq_type pin %d\n", pin);
166 gpio_free(pin);
167 }
168 } else {
169 printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
170 }
171}
172
173static int __init rd88f5182_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
174{
175 /*
176 * PCI-E isn't used on the RD2
177 */
178 if (dev->bus->number == orion_pcie_local_bus_nr())
179 return IRQ_ORION_PCIE0_INT;
180
181 /*
182 * PCI IRQs are connected via GPIOs
183 */
184 switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
185 case 0:
186 if (pin == 1)
187 return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
188 else
189 return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
190 default:
191 return -1;
192 }
193}
194
195static struct hw_pci rd88f5182_pci __initdata = {
196 .nr_controllers = 2,
197 .preinit = rd88f5182_pci_preinit,
198 .swizzle = pci_std_swizzle,
199 .setup = orion_pci_sys_setup,
200 .scan = orion_pci_sys_scan_bus,
201 .map_irq = rd88f5182_pci_map_irq,
202};
203
204static int __init rd88f5182_pci_init(void)
205{
206 if (machine_is_rd88f5182())
207 pci_common_init(&rd88f5182_pci);
208
209 return 0;
210}
211
212subsys_initcall(rd88f5182_pci_init);
213
214/*****************************************************************************
215 * Ethernet
216 ****************************************************************************/
217
218static struct mv643xx_eth_platform_data rd88f5182_eth_data = {
219 .phy_addr = 8,
220 .force_phy_addr = 1,
221};
222
223/*****************************************************************************
224 * RTC DS1338 on I2C bus
225 ****************************************************************************/
226static struct i2c_board_info __initdata rd88f5182_i2c_rtc = {
227 .driver_name = "rtc-ds1307",
228 .type = "ds1338",
229 .addr = 0x68,
230};
231
232/*****************************************************************************
233 * General Setup
234 ****************************************************************************/
235
236static struct platform_device *rd88f5182_devices[] __initdata = {
237 &rd88f5182_nor_flash,
238};
239
240static void __init rd88f5182_init(void)
241{
242 /*
243 * Setup basic Orion functions. Need to be called early.
244 */
245 orion_init();
246
247 /*
248 * Setup the CPU address decode windows for our devices
249 */
250 orion_setup_cpu_win(ORION_DEV_BOOT, RD88F5182_NOR_BOOT_BASE,
251 RD88F5182_NOR_BOOT_SIZE, -1);
252 orion_setup_cpu_win(ORION_DEV1, RD88F5182_NOR_BASE,
253 RD88F5182_NOR_SIZE, -1);
254
255 /*
256 * Open a special address decode windows for the PCIE WA.
257 */
258 orion_write(ORION_REGS_BASE | 0x20074, ORION_PCIE_WA_BASE);
259 orion_write(ORION_REGS_BASE | 0x20070, (0x7941 |
260 (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16));
261
262 /*
263 * Setup Multiplexing Pins --
264 * MPP[0] Debug Led (GPIO - Out)
265 * MPP[1] Debug Led (GPIO - Out)
266 * MPP[2] N/A
267 * MPP[3] RTC_Int (GPIO - In)
268 * MPP[4] GPIO
269 * MPP[5] GPIO
270 * MPP[6] PCI_intA (GPIO - In)
271 * MPP[7] PCI_intB (GPIO - In)
272 * MPP[8-11] N/A
273 * MPP[12] SATA 0 presence Indication
274 * MPP[13] SATA 1 presence Indication
275 * MPP[14] SATA 0 active Indication
276 * MPP[15] SATA 1 active indication
277 * MPP[16-19] Not used
278 * MPP[20] PCI Clock to MV88F5182
279 * MPP[21] PCI Clock to mini PCI CON11
280 * MPP[22] USB 0 over current indication
281 * MPP[23] USB 1 over current indication
282 * MPP[24] USB 1 over current enable
283 * MPP[25] USB 0 over current enable
284 */
285
286 orion_write(MPP_0_7_CTRL, 0x00000003);
287 orion_write(MPP_8_15_CTRL, 0x55550000);
288 orion_write(MPP_16_19_CTRL, 0x5555);
289
290 orion_gpio_set_valid_pins(0x000000fb);
291
292 platform_add_devices(rd88f5182_devices, ARRAY_SIZE(rd88f5182_devices));
293 i2c_register_board_info(0, &rd88f5182_i2c_rtc, 1);
294 orion_eth_init(&rd88f5182_eth_data);
295}
296
297MACHINE_START(RD88F5182, "Marvell Orion-NAS Reference Design")
298 /* Maintainer: Ronen Shitrit <rshitrit@marvell.com> */
299 .phys_io = ORION_REGS_BASE,
300 .io_pg_offst = ((ORION_REGS_BASE) >> 18) & 0xFFFC,
301 .boot_params = 0x00000100,
302 .init_machine = rd88f5182_init,
303 .map_io = orion_map_io,
304 .init_irq = orion_init_irq,
305 .timer = &orion_timer,
306MACHINE_END