diff options
Diffstat (limited to 'arch/arm/mach-orion5x/board-mss2.c')
-rw-r--r-- | arch/arm/mach-orion5x/board-mss2.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/mach-orion5x/board-mss2.c b/arch/arm/mach-orion5x/board-mss2.c new file mode 100644 index 000000000..79202fd62 --- /dev/null +++ b/arch/arm/mach-orion5x/board-mss2.c @@ -0,0 +1,90 @@ +/* + * 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 "orion5x.h" +#include "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; +} |