2 * arch/arm/mach-iop32x/em7210.c
4 * Board support code for the Lanner EM7210 platforms.
6 * Based on arch/arm/mach-iop32x/iq31244.c file.
8 * Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
17 #include <linux/init.h>
18 #include <linux/kernel.h>
19 #include <linux/pci.h>
21 #include <linux/serial_core.h>
22 #include <linux/serial_8250.h>
23 #include <linux/mtd/physmap.h>
24 #include <linux/platform_device.h>
25 #include <linux/i2c.h>
26 #include <mach/hardware.h>
28 #include <linux/irq.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31 #include <asm/mach/pci.h>
32 #include <asm/mach/time.h>
33 #include <asm/mach-types.h>
34 #include <mach/time.h>
35 #include "gpio-iop32x.h"
37 static void __init em7210_timer_init(void)
39 /* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */
40 /* 33.333 MHz crystal. */
41 iop_init_time(200000000);
47 static struct i2c_board_info __initdata em7210_i2c_devices[] = {
49 I2C_BOARD_INFO("rs5c372a", 0x32),
56 static struct map_desc em7210_io_desc[] __initdata = {
57 { /* on-board devices */
58 .virtual = IQ31244_UART,
59 .pfn = __phys_to_pfn(IQ31244_UART),
65 void __init em7210_map_io(void)
68 iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc));
75 #define INTA IRQ_IOP32X_XINT0
76 #define INTB IRQ_IOP32X_XINT1
77 #define INTC IRQ_IOP32X_XINT2
78 #define INTD IRQ_IOP32X_XINT3
81 em7210_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
83 static int pci_irq_table[][4] = {
85 * PCI IDSEL/INTPIN->INTLINE
88 {INTB, INTB, INTB, INTB}, /* console / uart */
89 {INTA, INTA, INTA, INTA}, /* 1st 82541 */
90 {INTD, INTD, INTD, INTD}, /* 2nd 82541 */
91 {INTC, INTC, INTC, INTC}, /* GD31244 */
92 {INTD, INTA, INTA, INTA}, /* mini-PCI */
93 {INTD, INTC, INTA, INTA}, /* NEC USB */
96 if (pin < 1 || pin > 4)
99 return pci_irq_table[slot % 6][pin - 1];
102 static struct hw_pci em7210_pci __initdata = {
105 .setup = iop3xx_pci_setup,
106 .preinit = iop3xx_pci_preinit,
107 .map_irq = em7210_pci_map_irq,
110 static int __init em7210_pci_init(void)
112 if (machine_is_em7210())
113 pci_common_init(&em7210_pci);
118 subsys_initcall(em7210_pci_init);
124 static struct physmap_flash_data em7210_flash_data = {
128 static struct resource em7210_flash_resource = {
131 .flags = IORESOURCE_MEM,
134 static struct platform_device em7210_flash_device = {
135 .name = "physmap-flash",
138 .platform_data = &em7210_flash_data,
141 .resource = &em7210_flash_resource,
147 * The physical address of the serial port is 0xfe800000,
148 * so it can be used for physical and virtual address.
150 static struct plat_serial8250_port em7210_serial_port[] = {
152 .mapbase = IQ31244_UART,
153 .membase = (char *)IQ31244_UART,
154 .irq = IRQ_IOP32X_XINT1,
155 .flags = UPF_SKIP_TEST,
163 static struct resource em7210_uart_resource = {
164 .start = IQ31244_UART,
165 .end = IQ31244_UART + 7,
166 .flags = IORESOURCE_MEM,
169 static struct platform_device em7210_serial_device = {
170 .name = "serial8250",
171 .id = PLAT8250_DEV_PLATFORM,
173 .platform_data = em7210_serial_port,
176 .resource = &em7210_uart_resource,
179 void em7210_power_off(void)
181 *IOP3XX_GPOE &= 0xfe;
182 *IOP3XX_GPOD |= 0x01;
185 static void __init em7210_init_machine(void)
187 register_iop32x_gpio();
188 platform_device_register(&em7210_serial_device);
189 platform_device_register(&iop3xx_i2c0_device);
190 platform_device_register(&iop3xx_i2c1_device);
191 platform_device_register(&em7210_flash_device);
192 platform_device_register(&iop3xx_dma_0_channel);
193 platform_device_register(&iop3xx_dma_1_channel);
195 i2c_register_board_info(0, em7210_i2c_devices,
196 ARRAY_SIZE(em7210_i2c_devices));
199 pm_power_off = em7210_power_off;
202 MACHINE_START(EM7210, "Lanner EM7210")
203 .atag_offset = 0x100,
204 .map_io = em7210_map_io,
205 .init_irq = iop32x_init_irq,
206 .init_time = em7210_timer_init,
207 .init_machine = em7210_init_machine,
208 .restart = iop3xx_restart,