diff options
Diffstat (limited to 'arch/powerpc/platforms/pasemi/setup.c')
| -rw-r--r-- | arch/powerpc/platforms/pasemi/setup.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index 9a6eb04cca83..c0532999f854 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -34,6 +34,7 @@ #include <asm/prom.h> #include <asm/iommu.h> #include <asm/machdep.h> +#include <asm/i8259.h> #include <asm/mpic.h> #include <asm/smp.h> #include <asm/time.h> @@ -72,6 +73,40 @@ static void __noreturn pas_restart(char *cmd) out_le32(reset_reg, 0x6000000); } +#ifdef CONFIG_PPC_PASEMI_NEMO +void pas_shutdown(void) +{ + /* Set the PLD bit that makes the SB600 think the power button is being pressed */ + void __iomem *pld_map = ioremap(0xf5000000,4096); + while (1) + out_8(pld_map+7,0x01); +} + +/* RTC platform device structure as is not in device tree */ +static struct resource rtc_resource[] = {{ + .name = "rtc", + .start = 0x70, + .end = 0x71, + .flags = IORESOURCE_IO, +}, { + .name = "rtc", + .start = 8, + .end = 8, + .flags = IORESOURCE_IRQ, +}}; + +static inline void nemo_init_rtc(void) +{ + platform_device_register_simple("rtc_cmos", -1, rtc_resource, 2); +} + +#else + +static inline void nemo_init_rtc(void) +{ +} +#endif + #ifdef CONFIG_SMP static arch_spinlock_t timebase_lock; static unsigned long timebase; @@ -183,6 +218,42 @@ static int __init pas_setup_mce_regs(void) } machine_device_initcall(pasemi, pas_setup_mce_regs); +#ifdef CONFIG_PPC_PASEMI_NEMO +static void sb600_8259_cascade(struct irq_desc *desc) +{ + struct irq_chip *chip = irq_desc_get_chip(desc); + unsigned int cascade_irq = i8259_irq(); + + if (cascade_irq) + generic_handle_irq(cascade_irq); + + chip->irq_eoi(&desc->irq_data); +} + +static void nemo_init_IRQ(struct mpic *mpic) +{ + struct device_node *np; + int gpio_virq; + /* Connect the SB600's legacy i8259 controller */ + np = of_find_node_by_path("/pxp@0,e0000000"); + i8259_init(np, 0); + of_node_put(np); + + gpio_virq = irq_create_mapping(NULL, 3); + irq_set_irq_type(gpio_virq, IRQ_TYPE_LEVEL_HIGH); + irq_set_chained_handler(gpio_virq, sb600_8259_cascade); + mpic_unmask_irq(irq_get_irq_data(gpio_virq)); + + irq_set_default_host(mpic->irqhost); +} + +#else + +static inline void nemo_init_IRQ(struct mpic *mpic) +{ +} +#endif + static __init void pas_init_IRQ(void) { struct device_node *np; @@ -243,6 +314,8 @@ static __init void pas_init_IRQ(void) mpic_unmask_irq(irq_get_irq_data(nmi_virq)); } + nemo_init_IRQ(mpic); + of_node_put(mpic_node); of_node_put(root); } @@ -404,6 +477,8 @@ static int __init pasemi_publish_devices(void) /* Publish OF platform devices for SDC and other non-PCI devices */ of_platform_bus_probe(NULL, pasemi_bus_ids, NULL); + nemo_init_rtc(); + return 0; } machine_device_initcall(pasemi, pasemi_publish_devices); @@ -418,6 +493,17 @@ static int __init pas_probe(void) !of_machine_is_compatible("pasemi,pwrficient")) return 0; +#ifdef CONFIG_PPC_PASEMI_NEMO + /* + * Check for the Nemo motherboard here, if we are running on one + * change the machine definition to fit + */ + if (of_machine_is_compatible("pasemi,nemo")) { + pm_power_off = pas_shutdown; + ppc_md.name = "A-EON Amigaone X1000"; + } +#endif + iommu_init_early_pasemi(); return 1; |