[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>

1 files changed, 61 insertions, 0 deletions

diff --git a/include/asm-mips/mach-rc32434/rc32434.h b/include/asm-mips/mach-rc32434/rc32434.h
new file mode 100644
index 000000000000..c4a02145104e
--- /dev/null
+++ b/include/asm-mips/mach-rc32434/rc32434.h
@@ -0,0 +1,61 @@
+/*
+ * Definitions for IDT RC323434 CPU.
+ */
+
+#ifndef _ASM_RC32434_RC32434_H_
+#define _ASM_RC32434_RC32434_H_
+
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#define RC32434_REG_BASE        0x18000000
+#define RC32434_RST             (1 << 15)
+
+#define IDT_CLOCK_MULT          2
+#define MIPS_CPU_TIMER_IRQ      7
+
+/* Interrupt Controller */
+#define IC_GROUP0_PEND          (RC32434_REG_BASE + 0x38000)
+#define IC_GROUP0_MASK          (RC32434_REG_BASE + 0x38008)
+#define IC_GROUP_OFFSET         0x0C
+
+#define NUM_INTR_GROUPS         5
+
+/* 16550 UARTs */
+#define GROUP0_IRQ_BASE         8       /* GRP2 IRQ numbers start here */
+                                        /* GRP3 IRQ numbers start here */
+#define GROUP1_IRQ_BASE         (GROUP0_IRQ_BASE + 32)
+                                        /* GRP4 IRQ numbers start here */
+#define GROUP2_IRQ_BASE         (GROUP1_IRQ_BASE + 32)
+                                        /* GRP5 IRQ numbers start here */
+#define GROUP3_IRQ_BASE         (GROUP2_IRQ_BASE + 32)
+#define GROUP4_IRQ_BASE         (GROUP3_IRQ_BASE + 32)
+
+
+#ifdef __MIPSEB__
+#define RC32434_UART0_BASE      (RC32434_REG_BASE + 0x58003)
+#else
+#define RC32434_UART0_BASE      (RC32434_REG_BASE + 0x58000)
+#endif
+
+#define RC32434_UART0_IRQ       (GROUP3_IRQ_BASE + 0)
+
+/* cpu pipeline flush */
+static inline void rc32434_sync(void)
+{
+        __asm__ volatile ("sync");
+}
+
+static inline void rc32434_sync_udelay(int us)
+{
+        __asm__ volatile ("sync");
+        udelay(us);
+}
+
+static inline void rc32434_sync_delay(int ms)
+{
+        __asm__ volatile ("sync");
+        mdelay(ms);
+}
+
+#endif  /* _ASM_RC32434_RC32434_H_ */