[ARM] pxa: add support for the IskraTel XCEP board (51238bfe) · Commits · 戴 / test

arch/arm/mach-pxa/Kconfig

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Original line number	Diff line number	Diff line
		@@ -504,6 +504,21 @@ config MACH_EZX_E2
		default y
		depends on PXA_EZX

		config MACH_XCEP
		bool "Iskratel Electronics XCEP"
		select PXA25x
		select MTD
		select MTD_PARTITIONS
		select MTD_PHYSMAP
		select MTD_CFI_INTELEXT
		select MTD_CFI
		select MTD_CHAR
		select SMC91X
		select PXA_SSP
		help
		PXA255 based Single Board Computer with SMC 91C111 ethernet chip and 64 MB of flash.
		Tuned for usage in Libera instruments for particle accelerators.

		endmenu

		config PXA25x

arch/arm/mach-pxa/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -79,6 +79,8 @@ obj-$(CONFIG_MACH_ARMCORE) += cm-x2xx.o cm-x255.o cm-x270.o
		obj-$(CONFIG_MACH_CM_X300) += cm-x300.o
		obj-$(CONFIG_PXA_EZX) += ezx.o

		obj-$(CONFIG_MACH_XCEP) += xcep.o

		obj-$(CONFIG_MACH_INTELMOTE2) += imote2.o
		obj-$(CONFIG_MACH_STARGATE2) += stargate2.o
		obj-$(CONFIG_MACH_CSB726) += csb726.o

arch/arm/mach-pxa/xcep.c

0 → 100644

+187 −0

Original line number	Diff line number	Diff line
		/* linux/arch/arm/mach-pxa/xcep.c
		*
		* Support for the Iskratel Electronics XCEP platform as used in
		* the Libera instruments from Instrumentation Technologies.
		*
		* Author: Ales Bardorfer <ales@i-tech.si>
		* Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk>
		* Contributions by: Matej Kenda <matej.kenda@i-tech.si>
		* Created: June 2006
		* Copyright: (C) 2006-2009 Instrumentation Technologies
		*
		* 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/platform_device.h>
		#include <linux/i2c.h>
		#include <linux/smc91x.h>
		#include <linux/mtd/mtd.h>
		#include <linux/mtd/partitions.h>
		#include <linux/mtd/physmap.h>

		#include <asm/mach-types.h>
		#include <asm/mach/arch.h>
		#include <asm/mach/irq.h>
		#include <asm/mach/map.h>

		#include <plat/i2c.h>

		#include <mach/hardware.h>
		#include <mach/pxa2xx-regs.h>
		#include <mach/mfp-pxa25x.h>

		#include "generic.h"

		#define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300)
		#define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff)
		#define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000)
		#define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff)
		#define XCEP_ETH_IRQ IRQ_GPIO0

		/* XCEP CPLD base */
		#define XCEP_CPLD_BASE 0xf0000000


		/* Flash partitions. */

		static struct mtd_partition xcep_partitions[] = {
		{
		.name = "Bootloader",
		.size = 0x00040000,
		.offset = 0,
		.mask_flags = MTD_WRITEABLE
		}, {
		.name = "Bootloader ENV",
		.size = 0x00040000,
		.offset = 0x00040000,
		.mask_flags = MTD_WRITEABLE
		}, {
		.name = "Kernel",
		.size = 0x00100000,
		.offset = 0x00080000,
		}, {
		.name = "Rescue fs",
		.size = 0x00280000,
		.offset = 0x00180000,
		}, {
		.name = "Filesystem",
		.size = MTDPART_SIZ_FULL,
		.offset = 0x00400000
		}
		};

		static struct physmap_flash_data xcep_flash_data[] = {
		{
		.width = 4, /* bankwidth in bytes */
		.parts = xcep_partitions,
		.nr_parts = ARRAY_SIZE(xcep_partitions)
		}
		};

		static struct resource flash_resource = {
		.start = PXA_CS0_PHYS,
		.end = PXA_CS0_PHYS + SZ_32M - 1,
		.flags = IORESOURCE_MEM,
		};

		static struct platform_device flash_device = {
		.name = "physmap-flash",
		.id = 0,
		.dev = {
		.platform_data = xcep_flash_data,
		},
		.resource = &flash_resource,
		.num_resources = 1,
		};



		/* SMC LAN91C111 network controller. */

		static struct resource smc91x_resources[] = {
		[0] = {
		.name = "smc91x-regs",
		.start = XCEP_ETH_PHYS,
		.end = XCEP_ETH_PHYS_END,
		.flags = IORESOURCE_MEM,
		},
		[1] = {
		.start = XCEP_ETH_IRQ,
		.end = XCEP_ETH_IRQ,
		.flags = IORESOURCE_IRQ,
		},
		[2] = {
		.name = "smc91x-attrib",
		.start = XCEP_ETH_ATTR,
		.end = XCEP_ETH_ATTR_END,
		.flags = IORESOURCE_MEM,
		},
		};

		static struct smc91x_platdata xcep_smc91x_info = {
		.flags = SMC91X_USE_32BIT \| SMC91X_NOWAIT \| SMC91X_USE_DMA,
		};

		static struct platform_device smc91x_device = {
		.name = "smc91x",
		.id = -1,
		.num_resources = ARRAY_SIZE(smc91x_resources),
		.resource = smc91x_resources,
		.dev = {
		.platform_data = &xcep_smc91x_info,
		},
		};


		static struct platform_device *devices[] __initdata = {
		&flash_device,
		&smc91x_device,
		};


		/* We have to state that there are HWMON devices on the I2C bus on XCEP.
		* Drivers for HWMON verify capabilities of the adapter when loading and
		* refuse to attach if the adapter doesn't support HWMON class of devices.
		* See also Documentation/i2c/porting-clients. */
		static struct i2c_pxa_platform_data xcep_i2c_platform_data = {
		.class = I2C_CLASS_HWMON
		};


		static mfp_cfg_t xcep_pin_config[] __initdata = {
		GPIO79_nCS_3, /* SMC 91C111 chip select. */
		GPIO80_nCS_4, /* CPLD chip select. */
		/* SSP communication to MSP430 */
		GPIO23_SSP1_SCLK,
		GPIO24_SSP1_SFRM,
		GPIO25_SSP1_TXD,
		GPIO26_SSP1_RXD,
		GPIO27_SSP1_EXTCLK
		};

		static void __init xcep_init(void)
		{
		pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config));

		/* See Intel XScale Developer's Guide for details */
		/* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */
		MSC1 = (MSC1 & 0xffff) \| 0xD5540000;
		/* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */
		MSC2 = (MSC2 & 0xffff) \| 0x72A00000;

		platform_add_devices(ARRAY_AND_SIZE(devices));
		pxa_set_i2c_info(&xcep_i2c_platform_data);
		}

		MACHINE_START(XCEP, "Iskratel XCEP")
		.phys_io = 0x40000000,
		.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
		.boot_params = 0xa0000100,
		.init_machine = xcep_init,
		.map_io = pxa_map_io,
		.init_irq = pxa25x_init_irq,
		.timer = &pxa_timer,
		MACHINE_END

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