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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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271a74fc87
Hook these platforms restart code into the new restart hook rather than using arch_reset(). Acked-by: Richard Purdie <richard.purdie@linuxfoundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/*
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* linux/arch/arm/mach-pxa/mp900.c
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*
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* Support for the NEC MobilePro900/C platform
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*
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* Based on mach-pxa/gumstix.c
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*
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* 2007, 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
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* 2007, 2008 Michael Petchkovsky <mkpetch@internode.on.net>
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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/device.h>
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#include <linux/platform_device.h>
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#include <linux/types.h>
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#include <linux/usb/isp116x.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/pxa25x.h>
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#include "generic.h"
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static void isp116x_pfm_delay(struct device *dev, int delay)
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{
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/* 400Mhz PXA2 = 2.5ns / instruction */
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int cyc = delay / 10;
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/* 4 Instructions = 4 x 2.5ns = 10ns */
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__asm__ volatile ("0:\n"
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"subs %0, %1, #1\n"
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"bge 0b\n"
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:"=r" (cyc)
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:"0"(cyc)
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);
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}
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static struct isp116x_platform_data isp116x_pfm_data = {
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.remote_wakeup_enable = 1,
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.delay = isp116x_pfm_delay,
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};
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static struct resource isp116x_pfm_resources[] = {
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[0] = {
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.start = 0x0d000000,
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.end = 0x0d000000 + 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = 0x0d000000 + 4,
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.end = 0x0d000000 + 5,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = 61,
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.end = 61,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device mp900c_dummy_device = {
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.name = "mp900c_dummy",
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.id = -1,
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};
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static struct platform_device mp900c_usb = {
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.name = "isp116x-hcd",
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.num_resources = ARRAY_SIZE(isp116x_pfm_resources),
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.resource = isp116x_pfm_resources,
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.dev.platform_data = &isp116x_pfm_data,
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};
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static struct platform_device *devices[] __initdata = {
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&mp900c_dummy_device,
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&mp900c_usb,
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};
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static void __init mp900c_init(void)
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{
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printk(KERN_INFO "MobilePro 900/C machine init\n");
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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(devices, ARRAY_SIZE(devices));
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}
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/* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
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MACHINE_START(NEC_MP900, "MobilePro900/C")
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.atag_offset = 0x220100,
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.timer = &pxa_timer,
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.map_io = pxa25x_map_io,
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.init_irq = pxa25x_init_irq,
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.handle_irq = pxa25x_handle_irq,
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.init_machine = mp900c_init,
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.restart = pxa_restart,
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MACHINE_END
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