2 * arch/arm/mach-orion5x/db88f5281-setup.c
4 * Marvell Orion-2 Development Board Setup
6 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
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.
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/mtd/nand.h>
20 #include <linux/timer.h>
21 #include <linux/mv643xx_eth.h>
22 #include <linux/i2c.h>
23 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/pci.h>
27 #include <asm/arch/orion5x.h>
28 #include <asm/plat-orion/orion_nand.h>
32 /*****************************************************************************
33 * DB-88F5281 on board devices
34 ****************************************************************************/
37 * 512K NOR flash Device bus boot chip select
40 #define DB88F5281_NOR_BOOT_BASE 0xf4000000
41 #define DB88F5281_NOR_BOOT_SIZE SZ_512K
44 * 7-Segment on Device bus chip select 0
47 #define DB88F5281_7SEG_BASE 0xfa000000
48 #define DB88F5281_7SEG_SIZE SZ_1K
51 * 32M NOR flash on Device bus chip select 1
54 #define DB88F5281_NOR_BASE 0xfc000000
55 #define DB88F5281_NOR_SIZE SZ_32M
58 * 32M NAND flash on Device bus chip select 2
61 #define DB88F5281_NAND_BASE 0xfa800000
62 #define DB88F5281_NAND_SIZE SZ_1K
68 #define DB88F5281_PCI_SLOT0_OFFS 7
69 #define DB88F5281_PCI_SLOT0_IRQ_PIN 12
70 #define DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN 13
72 /*****************************************************************************
73 * 512M NOR Flash on Device bus Boot CS
74 ****************************************************************************/
76 static struct physmap_flash_data db88f5281_boot_flash_data = {
77 .width = 1, /* 8 bit bus width */
80 static struct resource db88f5281_boot_flash_resource = {
81 .flags = IORESOURCE_MEM,
82 .start = DB88F5281_NOR_BOOT_BASE,
83 .end = DB88F5281_NOR_BOOT_BASE + DB88F5281_NOR_BOOT_SIZE - 1,
86 static struct platform_device db88f5281_boot_flash = {
87 .name = "physmap-flash",
90 .platform_data = &db88f5281_boot_flash_data,
93 .resource = &db88f5281_boot_flash_resource,
96 /*****************************************************************************
97 * 32M NOR Flash on Device bus CS1
98 ****************************************************************************/
100 static struct physmap_flash_data db88f5281_nor_flash_data = {
101 .width = 4, /* 32 bit bus width */
104 static struct resource db88f5281_nor_flash_resource = {
105 .flags = IORESOURCE_MEM,
106 .start = DB88F5281_NOR_BASE,
107 .end = DB88F5281_NOR_BASE + DB88F5281_NOR_SIZE - 1,
110 static struct platform_device db88f5281_nor_flash = {
111 .name = "physmap-flash",
114 .platform_data = &db88f5281_nor_flash_data,
117 .resource = &db88f5281_nor_flash_resource,
120 /*****************************************************************************
121 * 32M NAND Flash on Device bus CS2
122 ****************************************************************************/
124 static struct mtd_partition db88f5281_nand_parts[] = {
132 .size = (SZ_16M - SZ_2M),
139 .offset = (SZ_16M + SZ_8M),
144 static struct resource db88f5281_nand_resource = {
145 .flags = IORESOURCE_MEM,
146 .start = DB88F5281_NAND_BASE,
147 .end = DB88F5281_NAND_BASE + DB88F5281_NAND_SIZE - 1,
150 static struct orion_nand_data db88f5281_nand_data = {
151 .parts = db88f5281_nand_parts,
152 .nr_parts = ARRAY_SIZE(db88f5281_nand_parts),
158 static struct platform_device db88f5281_nand_flash = {
159 .name = "orion_nand",
162 .platform_data = &db88f5281_nand_data,
164 .resource = &db88f5281_nand_resource,
168 /*****************************************************************************
169 * 7-Segment on Device bus CS0
170 * Dummy counter every 2 sec
171 ****************************************************************************/
173 static void __iomem *db88f5281_7seg;
174 static struct timer_list db88f5281_timer;
176 static void db88f5281_7seg_event(unsigned long data)
178 static int count = 0;
179 writel(0, db88f5281_7seg + (count << 4));
180 count = (count + 1) & 7;
181 mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
184 static int __init db88f5281_7seg_init(void)
186 if (machine_is_db88f5281()) {
187 db88f5281_7seg = ioremap(DB88F5281_7SEG_BASE,
188 DB88F5281_7SEG_SIZE);
189 if (!db88f5281_7seg) {
190 printk(KERN_ERR "Failed to ioremap db88f5281_7seg\n");
193 setup_timer(&db88f5281_timer, db88f5281_7seg_event, 0);
194 mod_timer(&db88f5281_timer, jiffies + 2 * HZ);
200 __initcall(db88f5281_7seg_init);
202 /*****************************************************************************
204 ****************************************************************************/
206 void __init db88f5281_pci_preinit(void)
211 * Configure PCI GPIO IRQ pins
213 pin = DB88F5281_PCI_SLOT0_IRQ_PIN;
214 if (gpio_request(pin, "PCI Int1") == 0) {
215 if (gpio_direction_input(pin) == 0) {
216 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
218 printk(KERN_ERR "db88f5281_pci_preinit faield to "
219 "set_irq_type pin %d\n", pin);
223 printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
226 pin = DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN;
227 if (gpio_request(pin, "PCI Int2") == 0) {
228 if (gpio_direction_input(pin) == 0) {
229 set_irq_type(gpio_to_irq(pin), IRQT_LOW);
231 printk(KERN_ERR "db88f5281_pci_preinit faield "
232 "to set_irq_type pin %d\n", pin);
236 printk(KERN_ERR "db88f5281_pci_preinit failed to gpio_request %d\n", pin);
240 static int __init db88f5281_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
245 * Check for devices with hard-wired IRQs.
247 irq = orion5x_pci_map_irq(dev, slot, pin);
252 * PCI IRQs are connected via GPIOs.
254 switch (slot - DB88F5281_PCI_SLOT0_OFFS) {
256 return gpio_to_irq(DB88F5281_PCI_SLOT0_IRQ_PIN);
259 return gpio_to_irq(DB88F5281_PCI_SLOT1_SLOT2_IRQ_PIN);
265 static struct hw_pci db88f5281_pci __initdata = {
267 .preinit = db88f5281_pci_preinit,
268 .swizzle = pci_std_swizzle,
269 .setup = orion5x_pci_sys_setup,
270 .scan = orion5x_pci_sys_scan_bus,
271 .map_irq = db88f5281_pci_map_irq,
274 static int __init db88f5281_pci_init(void)
276 if (machine_is_db88f5281())
277 pci_common_init(&db88f5281_pci);
282 subsys_initcall(db88f5281_pci_init);
284 /*****************************************************************************
286 ****************************************************************************/
287 static struct mv643xx_eth_platform_data db88f5281_eth_data = {
291 /*****************************************************************************
292 * RTC DS1339 on I2C bus
293 ****************************************************************************/
294 static struct i2c_board_info __initdata db88f5281_i2c_rtc = {
295 I2C_BOARD_INFO("ds1339", 0x68),
298 /*****************************************************************************
300 ****************************************************************************/
301 static struct orion5x_mpp_mode db88f5281_mpp_modes[] __initdata = {
302 { 0, MPP_GPIO }, /* USB Over Current */
303 { 1, MPP_GPIO }, /* USB Vbat input */
304 { 2, MPP_PCI_ARB }, /* PCI_REQn[2] */
305 { 3, MPP_PCI_ARB }, /* PCI_GNTn[2] */
306 { 4, MPP_PCI_ARB }, /* PCI_REQn[3] */
307 { 5, MPP_PCI_ARB }, /* PCI_GNTn[3] */
308 { 6, MPP_GPIO }, /* JP0, CON17.2 */
309 { 7, MPP_GPIO }, /* JP1, CON17.1 */
310 { 8, MPP_GPIO }, /* JP2, CON11.2 */
311 { 9, MPP_GPIO }, /* JP3, CON11.3 */
312 { 10, MPP_GPIO }, /* RTC int */
313 { 11, MPP_GPIO }, /* Baud Rate Generator */
314 { 12, MPP_GPIO }, /* PCI int 1 */
315 { 13, MPP_GPIO }, /* PCI int 2 */
316 { 14, MPP_NAND }, /* NAND_REn[2] */
317 { 15, MPP_NAND }, /* NAND_WEn[2] */
318 { 16, MPP_UART }, /* UART1_RX */
319 { 17, MPP_UART }, /* UART1_TX */
320 { 18, MPP_UART }, /* UART1_CTSn */
321 { 19, MPP_UART }, /* UART1_RTSn */
325 static void __init db88f5281_init(void)
328 * Basic Orion setup. Need to be called early.
332 orion5x_mpp_conf(db88f5281_mpp_modes);
333 writel(0, MPP_DEV_CTRL); /* DEV_D[31:16] */
336 * Configure peripherals.
338 orion5x_ehci0_init();
339 orion5x_eth_init(&db88f5281_eth_data);
341 orion5x_uart0_init();
342 orion5x_uart1_init();
344 orion5x_setup_dev_boot_win(DB88F5281_NOR_BOOT_BASE,
345 DB88F5281_NOR_BOOT_SIZE);
346 platform_device_register(&db88f5281_boot_flash);
348 orion5x_setup_dev0_win(DB88F5281_7SEG_BASE, DB88F5281_7SEG_SIZE);
350 orion5x_setup_dev1_win(DB88F5281_NOR_BASE, DB88F5281_NOR_SIZE);
351 platform_device_register(&db88f5281_nor_flash);
353 orion5x_setup_dev2_win(DB88F5281_NAND_BASE, DB88F5281_NAND_SIZE);
354 platform_device_register(&db88f5281_nand_flash);
356 i2c_register_board_info(0, &db88f5281_i2c_rtc, 1);
359 MACHINE_START(DB88F5281, "Marvell Orion-2 Development Board")
360 /* Maintainer: Tzachi Perelstein <tzachi@marvell.com> */
361 .phys_io = ORION5X_REGS_PHYS_BASE,
362 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xfffc,
363 .boot_params = 0x00000100,
364 .init_machine = db88f5281_init,
365 .map_io = orion5x_map_io,
366 .init_irq = orion5x_init_irq,
367 .timer = &orion5x_timer,