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Diffstat (limited to 'arch/powerpc/platforms/44x/currituck.c')
-rw-r--r--arch/powerpc/platforms/44x/currituck.c43
1 files changed, 39 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/44x/currituck.c b/arch/powerpc/platforms/44x/currituck.c
index ecd3890..7f1b71a 100644
--- a/arch/powerpc/platforms/44x/currituck.c
+++ b/arch/powerpc/platforms/44x/currituck.c
@@ -91,12 +91,12 @@ static void __init ppc47x_init_irq(void)
}
#ifdef CONFIG_SMP
-static void __cpuinit smp_ppc47x_setup_cpu(int cpu)
+static void smp_ppc47x_setup_cpu(int cpu)
{
mpic_setup_this_cpu();
}
-static int __cpuinit smp_ppc47x_kick_cpu(int cpu)
+static int smp_ppc47x_kick_cpu(int cpu)
{
struct device_node *cpunode = of_get_cpu_node(cpu, NULL);
const u64 *spin_table_addr_prop;
@@ -176,13 +176,48 @@ static int __init ppc47x_probe(void)
return 1;
}
+static int board_rev = -1;
+static int __init ppc47x_get_board_rev(void)
+{
+ u8 fpga_reg0;
+ void *fpga;
+ struct device_node *np;
+
+ np = of_find_compatible_node(NULL, NULL, "ibm,currituck-fpga");
+ if (!np)
+ goto fail;
+
+ fpga = of_iomap(np, 0);
+ of_node_put(np);
+ if (!fpga)
+ goto fail;
+
+ fpga_reg0 = ioread8(fpga);
+ board_rev = fpga_reg0 & 0x03;
+ pr_info("%s: Found board revision %d\n", __func__, board_rev);
+ iounmap(fpga);
+ return 0;
+
+fail:
+ pr_info("%s: Unable to find board revision\n", __func__);
+ return 0;
+}
+machine_arch_initcall(ppc47x, ppc47x_get_board_rev);
+
/* Use USB controller should have been hardware swizzled but it wasn't :( */
static void ppc47x_pci_irq_fixup(struct pci_dev *dev)
{
if (dev->vendor == 0x1033 && (dev->device == 0x0035 ||
dev->device == 0x00e0)) {
- dev->irq = irq_create_mapping(NULL, 47);
- pr_info("%s: Mapping irq 47 %d\n", __func__, dev->irq);
+ if (board_rev == 0) {
+ dev->irq = irq_create_mapping(NULL, 47);
+ pr_info("%s: Mapping irq %d\n", __func__, dev->irq);
+ } else if (board_rev == 2) {
+ dev->irq = irq_create_mapping(NULL, 49);
+ pr_info("%s: Mapping irq %d\n", __func__, dev->irq);
+ } else {
+ pr_alert("%s: Unknown board revision\n", __func__);
+ }
}
}
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