/* * arch/arm/mach-iop32x/em7210.c * * Board support code for the Lanner EM7210 platforms. * * Based on arch/arm/mach-iop32x/iq31244.c file. * * Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include <linux/mm.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/pm.h> #include <linux/serial_core.h> #include <linux/serial_8250.h> #include <linux/mtd/physmap.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <mach/hardware.h> #include <linux/io.h> #include <linux/irq.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/pci.h> #include <asm/mach/time.h> #include <asm/mach-types.h> #include <mach/time.h> static void __init em7210_timer_init(void) { /* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */ /* 33.333 MHz crystal. */ iop_init_time(200000000); } static struct sys_timer em7210_timer = { .init = em7210_timer_init, }; /* * EM7210 RTC */ static struct i2c_board_info __initdata em7210_i2c_devices[] = { { I2C_BOARD_INFO("rs5c372a", 0x32), }, }; /* * EM7210 I/O */ static struct map_desc em7210_io_desc[] __initdata = { { /* on-board devices */ .virtual = IQ31244_UART, .pfn = __phys_to_pfn(IQ31244_UART), .length = 0x00100000, .type = MT_DEVICE, }, }; void __init em7210_map_io(void) { iop3xx_map_io(); iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc)); } /* * EM7210 PCI */ #define INTA IRQ_IOP32X_XINT0 #define INTB IRQ_IOP32X_XINT1 #define INTC IRQ_IOP32X_XINT2 #define INTD IRQ_IOP32X_XINT3 static int __init em7210_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { static int pci_irq_table[][4] = { /* * PCI IDSEL/INTPIN->INTLINE * A B C D */ {INTB, INTB, INTB, INTB}, /* console / uart */ {INTA, INTA, INTA, INTA}, /* 1st 82541 */ {INTD, INTD, INTD, INTD}, /* 2nd 82541 */ {INTC, INTC, INTC, INTC}, /* GD31244 */ {INTD, INTA, INTA, INTA}, /* mini-PCI */ {INTD, INTC, INTA, INTA}, /* NEC USB */ }; if (pin < 1 || pin > 4) return -1; return pci_irq_table[slot % 6][pin - 1]; } static struct hw_pci em7210_pci __initdata = { .swizzle = pci_std_swizzle, .nr_controllers = 1, .setup = iop3xx_pci_setup, .preinit = iop3xx_pci_preinit, .scan = iop3xx_pci_scan_bus, .map_irq = em7210_pci_map_irq, }; static int __init em7210_pci_init(void) { if (machine_is_em7210()) pci_common_init(&em7210_pci); return 0; } subsys_initcall(em7210_pci_init); /* * EM7210 Flash */ static struct physmap_flash_data em7210_flash_data = { .width = 2, }; static struct resource em7210_flash_resource = { .start = 0xf0000000, .end = 0xf1ffffff, .flags = IORESOURCE_MEM, }; static struct platform_device em7210_flash_device = { .name = "physmap-flash", .id = 0, .dev = { .platform_data = &em7210_flash_data, }, .num_resources = 1, .resource = &em7210_flash_resource, }; /* * EM7210 UART * The physical address of the serial port is 0xfe800000, * so it can be used for physical and virtual address. */ static struct plat_serial8250_port em7210_serial_port[] = { { .mapbase = IQ31244_UART, .membase = (char *)IQ31244_UART, .irq = IRQ_IOP32X_XINT1, .flags = UPF_SKIP_TEST, .iotype = UPIO_MEM, .regshift = 0, .uartclk = 1843200, }, { }, }; static struct resource em7210_uart_resource = { .start = IQ31244_UART, .end = IQ31244_UART + 7, .flags = IORESOURCE_MEM, }; static struct platform_device em7210_serial_device = { .name = "serial8250", .id = PLAT8250_DEV_PLATFORM, .dev = { .platform_data = em7210_serial_port, }, .num_resources = 1, .resource = &em7210_uart_resource, }; void em7210_power_off(void) { *IOP3XX_GPOE &= 0xfe; *IOP3XX_GPOD |= 0x01; } static void __init em7210_init_machine(void) { platform_device_register(&em7210_serial_device); platform_device_register(&iop3xx_i2c0_device); platform_device_register(&iop3xx_i2c1_device); platform_device_register(&em7210_flash_device); platform_device_register(&iop3xx_dma_0_channel); platform_device_register(&iop3xx_dma_1_channel); i2c_register_board_info(0, em7210_i2c_devices, ARRAY_SIZE(em7210_i2c_devices)); pm_power_off = em7210_power_off; } MACHINE_START(EM7210, "Lanner EM7210") .boot_params = 0xa0000100, .map_io = em7210_map_io, .init_irq = iop32x_init_irq, .timer = &em7210_timer, .init_machine = em7210_init_machine, MACHINE_END