ARM: S5P6440: Add IRQ support

This patch adds IRQ support for S5P6440 CPU.

Signed-off-by: Adityapratap Sharma <aditya.ps@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 83 insertions, 0 deletions

diff --git a/arch/arm/plat-s5p/include/plat/irqs.h b/arch/arm/plat-s5p/include/plat/irqs.h
new file mode 100644
index 000000000000..5d7937dddad2
--- /dev/null
+++ b/arch/arm/plat-s5p/include/plat/irqs.h
@@ -0,0 +1,83 @@
+/* linux/arch/arm/plat-s5p/include/plat/irqs.h
+ *
+ * Copyright (c) 2009 Samsung Electronics Co., Ltd.
+ *              http://www.samsung.com/
+ *
+ * S5P Common IRQ support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_PLAT_S5P_IRQS_H
+#define __ASM_PLAT_S5P_IRQS_H __FILE__
+
+/* we keep the first set of CPU IRQs out of the range of
+ * the ISA space, so that the PC104 has them to itself
+ * and we don't end up having to do horrible things to the
+ * standard ISA drivers....
+ *
+ * note, since we're using the VICs, our start must be a
+ * mulitple of 32 to allow the common code to work
+ */
+
+#define S5P_IRQ_OFFSET          (32)
+
+#define S5P_IRQ(x)              ((x) + S5P_IRQ_OFFSET)
+
+#define S5P_VIC0_BASE           S5P_IRQ(0)
+#define S5P_VIC1_BASE           S5P_IRQ(32)
+
+#define IRQ_VIC0_BASE           S5P_VIC0_BASE
+#define IRQ_VIC1_BASE           S5P_VIC1_BASE
+
+/* UART interrupts, each UART has 4 intterupts per channel so
+ * use the space between the ISA and S3C main interrupts. Note, these
+ * are not in the same order as the S3C24XX series! */
+
+#define IRQ_S5P_UART_BASE0      (16)
+#define IRQ_S5P_UART_BASE1      (20)
+#define IRQ_S5P_UART_BASE2      (24)
+#define IRQ_S5P_UART_BASE3      (28)
+
+#define UART_IRQ_RXD            (0)
+#define UART_IRQ_ERR            (1)
+#define UART_IRQ_TXD            (2)
+
+#define IRQ_S5P_UART_RX0        (IRQ_S5P_UART_BASE0 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX0        (IRQ_S5P_UART_BASE0 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR0       (IRQ_S5P_UART_BASE0 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX1        (IRQ_S5P_UART_BASE1 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX1        (IRQ_S5P_UART_BASE1 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR1       (IRQ_S5P_UART_BASE1 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX2        (IRQ_S5P_UART_BASE2 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX2        (IRQ_S5P_UART_BASE2 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR2       (IRQ_S5P_UART_BASE2 + UART_IRQ_ERR)
+
+#define IRQ_S5P_UART_RX3        (IRQ_S5P_UART_BASE3 + UART_IRQ_RXD)
+#define IRQ_S5P_UART_TX3        (IRQ_S5P_UART_BASE3 + UART_IRQ_TXD)
+#define IRQ_S5P_UART_ERR3       (IRQ_S5P_UART_BASE3 + UART_IRQ_ERR)
+
+/* S3C compatibilty defines */
+#define IRQ_S3CUART_RX0         IRQ_S5P_UART_RX0
+#define IRQ_S3CUART_RX1         IRQ_S5P_UART_RX1
+#define IRQ_S3CUART_RX2         IRQ_S5P_UART_RX2
+#define IRQ_S3CUART_RX3         IRQ_S5P_UART_RX3
+
+/* VIC based IRQs */
+
+#define S5P_IRQ_VIC0(x)         (S5P_VIC0_BASE + (x))
+#define S5P_IRQ_VIC1(x)         (S5P_VIC1_BASE + (x))
+
+#define S5P_TIMER_IRQ(x)        S5P_IRQ(64 + (x))
+
+#define IRQ_TIMER0              S5P_TIMER_IRQ(0)
+#define IRQ_TIMER1              S5P_TIMER_IRQ(1)
+#define IRQ_TIMER2              S5P_TIMER_IRQ(2)
+#define IRQ_TIMER3              S5P_TIMER_IRQ(3)
+#define IRQ_TIMER4              S5P_TIMER_IRQ(4)
+
+#endif /* __ASM_PLAT_S5P_IRQS_H */