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Diffstat (limited to 'arch/powerpc/platforms/pasemi/setup.c')
-rw-r--r--arch/powerpc/platforms/pasemi/setup.c86
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;