1 files changed, 56 insertions, 0 deletions
diff --git a/target/linux/rb532/files/arch/mips/rb500/misc.c b/target/linux/rb532/files/arch/mips/rb500/misc.c
new file mode 100644
index 0000000000..42039b7aae
--- /dev/null
+++ b/target/linux/rb532/files/arch/mips/rb500/misc.c
@@ -0,0 +1,56 @@
+#include <linux/module.h>
+#include <linux/kernel.h>   /* printk() */
+#include <linux/types.h>    /* size_t */
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <asm/rc32434/rb.h>
+
+#define GPIO_BADDR  0xb8050000
+
+
+static volatile unsigned char *devCtl3Base = 0;
+static unsigned char latchU5State = 0;
+static spinlock_t clu5Lock = SPIN_LOCK_UNLOCKED;
+
+void set434Reg(unsigned regOffs, unsigned bit, unsigned len, unsigned val) {
+    unsigned flags, data;
+    unsigned i = 0;
+    spin_lock_irqsave(&clu5Lock, flags);
+    data = *(volatile unsigned *) (IDT434_REG_BASE + regOffs);
+    for (i = 0; i != len; ++i) {
+	if (val & (1 << i)) data |= (1 << (i + bit));
+	else data &= ~(1 << (i + bit));
+    }
+    *(volatile unsigned *) (IDT434_REG_BASE + regOffs) = data;
+    spin_unlock_irqrestore(&clu5Lock, flags);
+}
+
+void changeLatchU5(unsigned char orMask, unsigned char nandMask) {
+    unsigned flags;
+    spin_lock_irqsave(&clu5Lock, flags);
+    latchU5State = (latchU5State | orMask) & ~nandMask;
+    if( !devCtl3Base) devCtl3Base = (volatile unsigned char *)
+	        KSEG1ADDR(*(volatile unsigned *) KSEG1ADDR(0x18010030));
+    *devCtl3Base = latchU5State;
+    spin_unlock_irqrestore(&clu5Lock, flags);
+}
+
+u32 gpio_get(gpio_func func)
+{
+	return readl((void *) GPIO_BADDR + func);
+}
+
+void gpio_set(gpio_func func, u32 mask, u32 value)
+{
+	u32 val = readl((void *) GPIO_BADDR + func);
+	
+	val &= ~mask;
+	val |= value & mask;
+	
+	writel(val, (void *) GPIO_BADDR + func);
+}
+
+EXPORT_SYMBOL(gpio_set);
+EXPORT_SYMBOL(gpio_get);
+EXPORT_SYMBOL(set434Reg);
+EXPORT_SYMBOL(changeLatchU5);