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121 lines
3.2 KiB
121 lines
3.2 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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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 <[email protected]> |
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* Copyright (C) 2009 Contec Steuerungstechnik & Automation GmbH |
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* Hubert Feurstein <[email protected]> |
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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 "hardware.h" |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include "soc.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 <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = micro9_init_machine, |
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.restart = ep93xx_restart, |
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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 <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = micro9_init_machine, |
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.restart = ep93xx_restart, |
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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 <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = micro9_init_machine, |
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.restart = ep93xx_restart, |
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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 <[email protected]> */ |
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.atag_offset = 0x100, |
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.map_io = ep93xx_map_io, |
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.init_irq = ep93xx_init_irq, |
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.init_time = ep93xx_timer_init, |
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.init_machine = micro9_init_machine, |
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.restart = ep93xx_restart, |
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MACHINE_END |
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#endif
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