mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 21:54:06 +08:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
|
/*
|
||
|
|
* Maxtor Shared Storage II Board Setup
|
||
|
|
*
|
||
|
|
* Maintainer: Sylver Bruneau <sylver.bruneau@googlemail.com>
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/pci.h>
|
||
|
|
#include <linux/irq.h>
|
||
|
|
#include <asm/mach-types.h>
|
||
|
|
#include <asm/mach/arch.h>
|
||
|
|
#include <asm/mach/pci.h>
|
||
|
|
#include <mach/orion5x.h>
|
||
|
|
#include <mach/bridge-regs.h>
|
||
|
|
#include "common.h"
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* Maxtor Shared Storage II Info
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* PCI setup
|
||
|
|
****************************************************************************/
|
||
|
|
static int __init mss2_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
||
|
|
{
|
||
|
|
int irq;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check for devices with hard-wired IRQs.
|
||
|
|
*/
|
||
|
|
irq = orion5x_pci_map_irq(dev, slot, pin);
|
||
|
|
if (irq != -1)
|
||
|
|
return irq;
|
||
|
|
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct hw_pci mss2_pci __initdata = {
|
||
|
|
.nr_controllers = 2,
|
||
|
|
.setup = orion5x_pci_sys_setup,
|
||
|
|
.scan = orion5x_pci_sys_scan_bus,
|
||
|
|
.map_irq = mss2_pci_map_irq,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init mss2_pci_init(void)
|
||
|
|
{
|
||
|
|
if (machine_is_mss2())
|
||
|
|
pci_common_init(&mss2_pci);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
subsys_initcall(mss2_pci_init);
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
* MSS2 power off method
|
||
|
|
****************************************************************************/
|
||
|
|
/*
|
||
|
|
* On the Maxtor Shared Storage II, the shutdown process is the following :
|
||
|
|
* - Userland modifies U-boot env to tell U-boot to go idle at next boot
|
||
|
|
* - The board reboots
|
||
|
|
* - U-boot starts and go into an idle mode until the user press "power"
|
||
|
|
*/
|
||
|
|
static void mss2_power_off(void)
|
||
|
|
{
|
||
|
|
u32 reg;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Enable and issue soft reset
|
||
|
|
*/
|
||
|
|
reg = readl(RSTOUTn_MASK);
|
||
|
|
reg |= 1 << 2;
|
||
|
|
writel(reg, RSTOUTn_MASK);
|
||
|
|
|
||
|
|
reg = readl(CPU_SOFT_RESET);
|
||
|
|
reg |= 1;
|
||
|
|
writel(reg, CPU_SOFT_RESET);
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init mss2_init(void)
|
||
|
|
{
|
||
|
|
/* register mss2 specific power-off method */
|
||
|
|
pm_power_off = mss2_power_off;
|
||
|
|
}
|