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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:54:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-26 16:54:27 -0800
commit64d497f55379b1e320a08ec2426468d96f5642ec (patch)
tree22b9ab3c5e69c5cc2728cbc2ca7fc7623beef8f1 /arch/sh/boards/mach-sdk7786/irq.c
parent37d4008484977f60d5d37499a2670c79b214dd46 (diff)
parentb5f5fe80fa98a60daa0fa94512d1599b1e26674c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (187 commits) sh: remove dead LED code for migo-r and ms7724se sh: ecovec build fix for CONFIG_I2C=n sh: ecovec r-standby support sh: ms7724se r-standby support sh: SH-Mobile R-standby register save/restore clocksource: Fix up a registration/IRQ race in the sh drivers. sh: ms7724: modify scan_timing for KEYSC sh: ms7724: Add sh_sir support sh: mach-ecovec24: Add sh_sir support sh: wire up SET/GET_UNALIGN_CTL. sh: allow alignment fault mode to be configured at kernel boot. sh: sh7724: Update FSI/SPU2 clock sh: always enable sh7724 vpu_clk and set to 166MHz on Ecovec sh: add sh7724 kick callback to clk_div4_table sh: introduce struct clk_div4_table sh: clock-cpg div4 set_rate() shift fix sh: Turn on speculative return for SH7785 and SH7786 sh: Merge legacy and dynamic PMB modes. sh: Use uncached I/O helpers in PMB setup. sh: Provide uncached I/O helpers. ...
Diffstat (limited to 'arch/sh/boards/mach-sdk7786/irq.c')
-rw-r--r--arch/sh/boards/mach-sdk7786/irq.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-sdk7786/irq.c b/arch/sh/boards/mach-sdk7786/irq.c
new file mode 100644
index 00000000000..46943a0da5b
--- /dev/null
+++ b/arch/sh/boards/mach-sdk7786/irq.c
@@ -0,0 +1,48 @@
+/*
+ * SDK7786 FPGA IRQ Controller Support.
+ *
+ * Copyright (C) 2010 Matt Fleming
+ * Copyright (C) 2010 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/irq.h>
+#include <mach/fpga.h>
+#include <mach/irq.h>
+
+enum {
+ ATA_IRQ_BIT = 1,
+ SPI_BUSY_BIT = 2,
+ LIRQ5_BIT = 3,
+ LIRQ6_BIT = 4,
+ LIRQ7_BIT = 5,
+ LIRQ8_BIT = 6,
+ KEY_IRQ_BIT = 7,
+ PEN_IRQ_BIT = 8,
+ ETH_IRQ_BIT = 9,
+ RTC_ALARM_BIT = 10,
+ CRYSTAL_FAIL_BIT = 12,
+ ETH_PME_BIT = 14,
+};
+
+void __init sdk7786_init_irq(void)
+{
+ unsigned int tmp;
+
+ /* Enable priority encoding for all IRLs */
+ fpga_write_reg(fpga_read_reg(INTMSR) | 0x0303, INTMSR);
+
+ /* Clear FPGA interrupt status registers */
+ fpga_write_reg(0x0000, INTASR);
+ fpga_write_reg(0x0000, INTBSR);
+
+ /* Unmask FPGA interrupts */
+ tmp = fpga_read_reg(INTAMR);
+ tmp &= ~(1 << ETH_IRQ_BIT);
+ fpga_write_reg(tmp, INTAMR);
+
+ plat_irq_setup_pins(IRQ_MODE_IRL7654_MASK);
+ plat_irq_setup_pins(IRQ_MODE_IRL3210_MASK);
+}