forked from Minki/linux
16bcf78f8c
Create a core.c __init function to handle the physmap flash registration for all the ep93xx platforms. Also, modify all the ep93xx platforms to use this new function. This simplifies all the ep93xx platform init code and reduces the size of the kernel when including multiple ep93xx boards. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Ryan Mallon <ryan@bluewatersys.com> Acked-by: Martin Guy <martinwguy@gmail.com> Acked-by: Hubert Feurstein <hubert.feurstein@contec.at> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/*
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* linux/arch/arm/mach-ep93xx/micro9.c
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*
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* Copyright (C) 2006 Contec Steuerungstechnik & Automation GmbH
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* Manfred Gruber <m.gruber@tirol.com>
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* Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH
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* Hubert Feurstein <hubert.feurstein@contec.at>
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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/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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/*************************************************************************
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* Micro9 NOR Flash
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*
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* Micro9-High has up to 64MB of 32-bit flash on CS1
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* Micro9-Mid has up to 64MB of either 32-bit or 16-bit flash on CS1
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* Micro9-Lite uses a separate MTD map driver for flash support
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* Micro9-Slim has up to 64MB of either 32-bit or 16-bit flash on CS1
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*************************************************************************/
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static unsigned int __init micro9_detect_bootwidth(void)
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{
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u32 v;
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/* Detect the bus width of the external flash memory */
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v = __raw_readl(EP93XX_SYSCON_SYSCFG);
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if (v & EP93XX_SYSCON_SYSCFG_LCSN7)
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return 4; /* 32-bit */
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else
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return 2; /* 16-bit */
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}
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static void __init micro9_register_flash(void)
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{
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unsigned int width;
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if (machine_is_micro9())
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width = 4;
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else if (machine_is_micro9m() || machine_is_micro9s())
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width = micro9_detect_bootwidth();
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else
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width = 0;
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if (width)
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ep93xx_register_flash(width, EP93XX_CS1_PHYS_BASE, SZ_64M);
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}
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/*************************************************************************
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* Micro9 Ethernet
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*************************************************************************/
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static struct ep93xx_eth_data __initdata micro9_eth_data = {
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.phy_id = 0x1f,
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};
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static void __init micro9_init_machine(void)
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{
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ep93xx_init_devices();
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ep93xx_register_eth(µ9_eth_data, 1);
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micro9_register_flash();
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}
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#ifdef CONFIG_MACH_MICRO9H
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MACHINE_START(MICRO9, "Contec Micro9-High")
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/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
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.phys_io = EP93XX_APB_PHYS_BASE,
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.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
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.boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
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.map_io = ep93xx_map_io,
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.init_irq = ep93xx_init_irq,
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.timer = &ep93xx_timer,
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.init_machine = micro9_init_machine,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_MICRO9M
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MACHINE_START(MICRO9M, "Contec Micro9-Mid")
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/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
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.phys_io = EP93XX_APB_PHYS_BASE,
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.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
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.boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
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.map_io = ep93xx_map_io,
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.init_irq = ep93xx_init_irq,
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.timer = &ep93xx_timer,
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.init_machine = micro9_init_machine,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_MICRO9L
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MACHINE_START(MICRO9L, "Contec Micro9-Lite")
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/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
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.phys_io = EP93XX_APB_PHYS_BASE,
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.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
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.boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100,
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.map_io = ep93xx_map_io,
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.init_irq = ep93xx_init_irq,
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.timer = &ep93xx_timer,
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.init_machine = micro9_init_machine,
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MACHINE_END
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#endif
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#ifdef CONFIG_MACH_MICRO9S
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MACHINE_START(MICRO9S, "Contec Micro9-Slim")
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/* Maintainer: Hubert Feurstein <hubert.feurstein@contec.at> */
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.phys_io = EP93XX_APB_PHYS_BASE,
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.io_pg_offst = ((EP93XX_APB_VIRT_BASE) >> 18) & 0xfffc,
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.boot_params = EP93XX_SDCE3_PHYS_BASE_ASYNC + 0x100,
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.map_io = ep93xx_map_io,
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.init_irq = ep93xx_init_irq,
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.timer = &ep93xx_timer,
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.init_machine = micro9_init_machine,
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MACHINE_END
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#endif
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