cc155c6f2c
For some platforms, it is inappropriate to register all PXA UARTs. In some cases, the UARTs may not be used, and in others we may want to avoid registering the UARTs to allow other drivers (eg, FICP) to make use of the UART. In addition, a while back there was a request to be able to pass platform data to the UART driver. This patch enables all of this by providing functions platforms can call to register each individual UART. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
149 lines
3.4 KiB
C
149 lines
3.4 KiB
C
/*
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* linux/arch/arm/mach-pxa/colibri-pxa270.c
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*
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* Support for Toradex PXA270 based Colibri module
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* Daniel Mack <daniel@caiaq.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/sysdev.h>
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#include <linux/interrupt.h>
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#include <linux/bitops.h>
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#include <linux/ioport.h>
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#include <linux/delay.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include <asm/irq.h>
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#include <asm/sizes.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/mach/flash.h>
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#include <mach/pxa27x.h>
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#include <mach/colibri.h>
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#include "generic.h"
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#include "devices.h"
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/*
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* GPIO configuration
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*/
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static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
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GPIO78_nCS_2, /* Ethernet CS */
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GPIO114_GPIO, /* Ethernet IRQ */
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};
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/*
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* NOR flash
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*/
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static struct mtd_partition colibri_partitions[] = {
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{
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.name = "Bootloader",
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.offset = 0x00000000,
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.size = 0x00040000,
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.mask_flags = MTD_WRITEABLE /* force read-only */
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}, {
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.name = "Kernel",
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.offset = 0x00040000,
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.size = 0x00400000,
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.mask_flags = 0
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}, {
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.name = "Rootfs",
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.offset = 0x00440000,
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.size = MTDPART_SIZ_FULL,
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.mask_flags = 0
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}
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};
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static struct physmap_flash_data colibri_flash_data[] = {
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{
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.width = 4, /* bankwidth in bytes */
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.parts = colibri_partitions,
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.nr_parts = ARRAY_SIZE(colibri_partitions)
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}
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};
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static struct resource colibri_pxa270_flash_resource = {
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.start = PXA_CS0_PHYS,
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.end = PXA_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device colibri_pxa270_flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = colibri_flash_data,
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},
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.resource = &colibri_pxa270_flash_resource,
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.num_resources = 1,
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};
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/*
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* DM9000 Ethernet
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*/
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#if defined(CONFIG_DM9000)
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static struct resource dm9000_resources[] = {
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[0] = {
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.start = COLIBRI_PXA270_ETH_PHYS,
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.end = COLIBRI_PXA270_ETH_PHYS + 3,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = COLIBRI_PXA270_ETH_PHYS + 4,
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.end = COLIBRI_PXA270_ETH_PHYS + 4 + 500,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = COLIBRI_PXA270_ETH_IRQ,
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.end = COLIBRI_PXA270_ETH_IRQ,
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.flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
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},
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};
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static struct platform_device dm9000_device = {
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.name = "dm9000",
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.id = -1,
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.num_resources = ARRAY_SIZE(dm9000_resources),
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.resource = dm9000_resources,
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};
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#endif /* CONFIG_DM9000 */
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static struct platform_device *colibri_pxa270_devices[] __initdata = {
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&colibri_pxa270_flash_device,
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#if defined(CONFIG_DM9000)
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&dm9000_device,
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#endif
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};
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static void __init colibri_pxa270_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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platform_add_devices(ARRAY_AND_SIZE(colibri_pxa270_devices));
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}
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MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
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.phys_io = 0x40000000,
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.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
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.boot_params = COLIBRI_SDRAM_BASE + 0x100,
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.init_machine = colibri_pxa270_init,
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.map_io = pxa_map_io,
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.init_irq = pxa27x_init_irq,
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.timer = &pxa_timer,
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MACHINE_END
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