From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-pxa/mp900.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 arch/arm/mach-pxa/mp900.c (limited to 'arch/arm/mach-pxa/mp900.c') diff --git a/arch/arm/mach-pxa/mp900.c b/arch/arm/mach-pxa/mp900.c new file mode 100644 index 00000000..59cce78a --- /dev/null +++ b/arch/arm/mach-pxa/mp900.c @@ -0,0 +1,101 @@ +/* + * linux/arch/arm/mach-pxa/mp900.c + * + * Support for the NEC MobilePro900/C platform + * + * Based on mach-pxa/gumstix.c + * + * 2007, 2008 Kristoffer Ericson + * 2007, 2008 Michael Petchkovsky + * + * 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 +#include +#include +#include +#include + +#include +#include + +#include +#include "generic.h" + +static void isp116x_pfm_delay(struct device *dev, int delay) +{ + + /* 400Mhz PXA2 = 2.5ns / instruction */ + + int cyc = delay / 10; + + /* 4 Instructions = 4 x 2.5ns = 10ns */ + __asm__ volatile ("0:\n" + "subs %0, %1, #1\n" + "bge 0b\n" + :"=r" (cyc) + :"0"(cyc) + ); +} + +static struct isp116x_platform_data isp116x_pfm_data = { + .remote_wakeup_enable = 1, + .delay = isp116x_pfm_delay, +}; + +static struct resource isp116x_pfm_resources[] = { + [0] = { + .start = 0x0d000000, + .end = 0x0d000000 + 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 0x0d000000 + 4, + .end = 0x0d000000 + 5, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = 61, + .end = 61, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device mp900c_dummy_device = { + .name = "mp900c_dummy", + .id = -1, +}; + +static struct platform_device mp900c_usb = { + .name = "isp116x-hcd", + .num_resources = ARRAY_SIZE(isp116x_pfm_resources), + .resource = isp116x_pfm_resources, + .dev.platform_data = &isp116x_pfm_data, +}; + +static struct platform_device *devices[] __initdata = { + &mp900c_dummy_device, + &mp900c_usb, +}; + +static void __init mp900c_init(void) +{ + printk(KERN_INFO "MobilePro 900/C machine init\n"); + pxa_set_ffuart_info(NULL); + pxa_set_btuart_info(NULL); + pxa_set_stuart_info(NULL); + platform_add_devices(devices, ARRAY_SIZE(devices)); +} + +/* Maintainer - Michael Petchkovsky */ +MACHINE_START(NEC_MP900, "MobilePro900/C") + .boot_params = 0xa0220100, + .timer = &pxa_timer, + .map_io = pxa25x_map_io, + .init_irq = pxa25x_init_irq, + .init_machine = mp900c_init, +MACHINE_END + -- cgit v1.2.3