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authorRalf Baechle <ralf@linux-mips.org>2008-07-16 16:12:25 +0100
committerRalf Baechle <ralf@linux-mips.org>2008-07-20 14:38:18 +0100
commit73b4390fb23456964201abda79f1210fe337d01a (patch)
treebc613dfa0a3926bd889025cebbc28ae034b8c854 /arch/mips/rb532/setup.c
parent36a0a3cd45b49ceff78ac28efef1cbeec413d8c2 (diff)
downloadlinux-linaro-stable-73b4390fb23456964201abda79f1210fe337d01a.tar.gz
[MIPS] Routerboard 532: Support for base system
Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/rb532/setup.c')
-rw-r--r--arch/mips/rb532/setup.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c
new file mode 100644
index 000000000000..7aafa95ac20b
--- /dev/null
+++ b/arch/mips/rb532/setup.c
@@ -0,0 +1,79 @@
+/*
+ * setup.c - boot time setup code
+ */
+
+#include <linux/init.h>
+
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <linux/ioport.h>
+
+#include <asm/mach-rc32434/rc32434.h>
+#include <asm/mach-rc32434/pci.h>
+
+struct pci_reg __iomem *pci_reg;
+EXPORT_SYMBOL(pci_reg);
+
+static struct resource pci0_res[] = {
+ {
+ .name = "pci_reg0",
+ .start = PCI0_BASE_ADDR,
+ .end = PCI0_BASE_ADDR + sizeof(struct pci_reg),
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static void rb_machine_restart(char *command)
+{
+ /* just jump to the reset vector */
+ writel(0x80000001, (void *)KSEG1ADDR(RC32434_REG_BASE + RC32434_RST));
+ ((void (*)(void)) KSEG1ADDR(0x1FC00000u))();
+}
+
+static void rb_machine_halt(void)
+{
+ for (;;)
+ continue;
+}
+
+void __init plat_mem_setup(void)
+{
+ u32 val;
+
+ _machine_restart = rb_machine_restart;
+ _machine_halt = rb_machine_halt;
+ pm_power_off = rb_machine_halt;
+
+ set_io_port_base(KSEG1);
+
+ pci_reg = ioremap_nocache(pci0_res[0].start,
+ pci0_res[0].end - pci0_res[0].start);
+ if (!pci_reg) {
+ printk(KERN_ERR "Could not remap PCI registers\n");
+ return;
+ }
+
+ val = __raw_readl(&pci_reg->pcic);
+ val &= 0xFFFFFF7;
+ __raw_writel(val, (void *)&pci_reg->pcic);
+
+#ifdef CONFIG_PCI
+ /* Enable PCI interrupts in EPLD Mask register */
+ *epld_mask = 0x0;
+ *(epld_mask + 1) = 0x0;
+#endif
+ write_c0_wired(0);
+}
+
+const char *get_system_type(void)
+{
+ switch (mips_machtype) {
+ case MACH_MIKROTIK_RB532A:
+ return "Mikrotik RB532A";
+ break;
+ default:
+ return "Mikrotik RB532";
+ break;
+ }
+}