aboutsummaryrefslogtreecommitdiff
path: root/arch/sh/boards/mach-r2d/irq.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-01 10:53:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-01 10:53:43 -0700
commit00e9028a95fb8a4d79f2fb695a853f33ea7d3b57 (patch)
tree2dea2ae498a6ce57de8890e87185aca5e9f3ad2d /arch/sh/boards/mach-r2d/irq.c
parent57b1494d2ba544c62673234da6115c21fac27ffc (diff)
parent7cb93181629c613ee2b8f4ffe3446f8003074842 (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: (28 commits) mm/hugetlb.c must #include <asm/io.h> video: Fix up hp6xx driver build regressions. sh: defconfig updates. sh: Kill off stray mach-rsk7203 reference. serial: sh-sci: Fix up SH7760/SH7780/SH7785 early printk regression. sh: Move out individual boards without mach groups. sh: Make sure AT_SYSINFO_EHDR is exposed to userspace in asm/auxvec.h. sh: Allow SH-3 and SH-5 to use common headers. sh: Provide common CPU headers, prune the SH-2 and SH-2A directories. sh/maple: clean maple bus code sh: More header path fixups for mach dir refactoring. sh: Move out the solution engine headers to arch/sh/include/mach-se/ sh: I2C fix for AP325RXA and Migo-R sh: Shuffle the board directories in to mach groups. sh: dma-sh: Fix up dreamcast dma.h mach path. sh: Switch KBUILD_DEFCONFIG to shx3_defconfig. sh: Add ARCH_DEFCONFIG entries for sh and sh64. sh: Fix compile error of Solution Engine sh: Proper __put_user_asm() size mismatch fix. sh: Stub in a dummy ENTRY_OFFSET for uImage offset calculation. ...
Diffstat (limited to 'arch/sh/boards/mach-r2d/irq.c')
-rw-r--r--arch/sh/boards/mach-r2d/irq.c155
1 files changed, 155 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-r2d/irq.c b/arch/sh/boards/mach-r2d/irq.c
new file mode 100644
index 00000000000..8e49f6e5124
--- /dev/null
+++ b/arch/sh/boards/mach-r2d/irq.c
@@ -0,0 +1,155 @@
+/*
+ * linux/arch/sh/boards/renesas/rts7751r2d/irq.c
+ *
+ * Copyright (C) 2007 Magnus Damm
+ * Copyright (C) 2000 Kazumoto Kojima
+ *
+ * Renesas Technology Sales RTS7751R2D Support, R2D-PLUS and R2D-1.
+ *
+ * Modified for RTS7751R2D by
+ * Atom Create Engineering Co., Ltd. 2002.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <asm/rts7751r2d.h>
+
+#define R2D_NR_IRL 13
+
+enum {
+ UNUSED = 0,
+
+ /* board specific interrupt sources (R2D-1 and R2D-PLUS) */
+ EXT, /* EXT_INT0-3 */
+ RTC_T, RTC_A, /* Real Time Clock */
+ AX88796, /* Ethernet controller (R2D-1 board) */
+ KEY, /* Key input (R2D-PLUS board) */
+ SDCARD, /* SD Card */
+ CF_CD, CF_IDE, /* CF Card Detect + CF IDE */
+ SM501, /* SM501 aka Voyager */
+ PCI_INTD_RTL8139, /* Ethernet controller */
+ PCI_INTC_PCI1520, /* Cardbus/PCMCIA bridge */
+ PCI_INTB_RTL8139, /* Ethernet controller with HUB (R2D-PLUS board) */
+ PCI_INTB_SLOT, /* PCI Slot 3.3v (R2D-1 board) */
+ PCI_INTA_SLOT, /* PCI Slot 3.3v */
+ TP, /* Touch Panel */
+};
+
+#ifdef CONFIG_RTS7751R2D_1
+
+/* Vectors for R2D-1 */
+static struct intc_vect vectors_r2d_1[] __initdata = {
+ INTC_IRQ(EXT, IRQ_EXT),
+ INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A),
+ INTC_IRQ(AX88796, IRQ_AX88796), INTC_IRQ(SDCARD, IRQ_SDCARD),
+ INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE), /* ng */
+ INTC_IRQ(SM501, IRQ_VOYAGER),
+ INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD),
+ INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC),
+ INTC_IRQ(PCI_INTB_SLOT, IRQ_PCI_INTB),
+ INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA),
+ INTC_IRQ(TP, IRQ_TP),
+};
+
+/* IRLMSK mask register layout for R2D-1 */
+static struct intc_mask_reg mask_registers_r2d_1[] __initdata = {
+ { 0xa4000000, 0, 16, /* IRLMSK */
+ { TP, PCI_INTA_SLOT, PCI_INTB_SLOT,
+ PCI_INTC_PCI1520, PCI_INTD_RTL8139,
+ SM501, CF_IDE, CF_CD, SDCARD, AX88796,
+ RTC_A, RTC_T, 0, 0, 0, EXT } },
+};
+
+/* IRLn to IRQ table for R2D-1 */
+static unsigned char irl2irq_r2d_1[R2D_NR_IRL] __initdata = {
+ IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC,
+ IRQ_VOYAGER, IRQ_AX88796, IRQ_RTC_A, IRQ_RTC_T,
+ IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT,
+ IRQ_TP,
+};
+
+static DECLARE_INTC_DESC(intc_desc_r2d_1, "r2d-1", vectors_r2d_1,
+ NULL, mask_registers_r2d_1, NULL, NULL);
+
+#endif /* CONFIG_RTS7751R2D_1 */
+
+#ifdef CONFIG_RTS7751R2D_PLUS
+
+/* Vectors for R2D-PLUS */
+static struct intc_vect vectors_r2d_plus[] __initdata = {
+ INTC_IRQ(EXT, IRQ_EXT),
+ INTC_IRQ(RTC_T, IRQ_RTC_T), INTC_IRQ(RTC_A, IRQ_RTC_A),
+ INTC_IRQ(KEY, IRQ_KEY), INTC_IRQ(SDCARD, IRQ_SDCARD),
+ INTC_IRQ(CF_CD, IRQ_CF_CD), INTC_IRQ(CF_IDE, IRQ_CF_IDE),
+ INTC_IRQ(SM501, IRQ_VOYAGER),
+ INTC_IRQ(PCI_INTD_RTL8139, IRQ_PCI_INTD),
+ INTC_IRQ(PCI_INTC_PCI1520, IRQ_PCI_INTC),
+ INTC_IRQ(PCI_INTB_RTL8139, IRQ_PCI_INTB),
+ INTC_IRQ(PCI_INTA_SLOT, IRQ_PCI_INTA),
+ INTC_IRQ(TP, IRQ_TP),
+};
+
+/* IRLMSK mask register layout for R2D-PLUS */
+static struct intc_mask_reg mask_registers_r2d_plus[] __initdata = {
+ { 0xa4000000, 0, 16, /* IRLMSK */
+ { TP, PCI_INTA_SLOT, PCI_INTB_RTL8139,
+ PCI_INTC_PCI1520, PCI_INTD_RTL8139,
+ SM501, CF_IDE, CF_CD, SDCARD, KEY,
+ RTC_A, RTC_T, 0, 0, 0, EXT } },
+};
+
+/* IRLn to IRQ table for R2D-PLUS */
+static unsigned char irl2irq_r2d_plus[R2D_NR_IRL] __initdata = {
+ IRQ_PCI_INTD, IRQ_CF_IDE, IRQ_CF_CD, IRQ_PCI_INTC,
+ IRQ_VOYAGER, IRQ_KEY, IRQ_RTC_A, IRQ_RTC_T,
+ IRQ_SDCARD, IRQ_PCI_INTA, IRQ_PCI_INTB, IRQ_EXT,
+ IRQ_TP,
+};
+
+static DECLARE_INTC_DESC(intc_desc_r2d_plus, "r2d-plus", vectors_r2d_plus,
+ NULL, mask_registers_r2d_plus, NULL, NULL);
+
+#endif /* CONFIG_RTS7751R2D_PLUS */
+
+static unsigned char irl2irq[R2D_NR_IRL];
+
+int rts7751r2d_irq_demux(int irq)
+{
+ if (irq >= R2D_NR_IRL || !irl2irq[irq])
+ return irq;
+
+ return irl2irq[irq];
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_rts7751r2d_IRQ(void)
+{
+ struct intc_desc *d;
+
+ switch (ctrl_inw(PA_VERREG) & 0xf0) {
+#ifdef CONFIG_RTS7751R2D_PLUS
+ case 0x10:
+ printk(KERN_INFO "Using R2D-PLUS interrupt controller.\n");
+ d = &intc_desc_r2d_plus;
+ memcpy(irl2irq, irl2irq_r2d_plus, R2D_NR_IRL);
+ break;
+#endif
+#ifdef CONFIG_RTS7751R2D_1
+ case 0x00: /* according to manual */
+ case 0x30: /* in reality */
+ printk(KERN_INFO "Using R2D-1 interrupt controller.\n");
+ d = &intc_desc_r2d_1;
+ memcpy(irl2irq, irl2irq_r2d_1, R2D_NR_IRL);
+ break;
+#endif
+ default:
+ printk(KERN_INFO "Unknown R2D interrupt controller 0x%04x\n",
+ ctrl_inw(PA_VERREG));
+ return;
+ }
+
+ register_intc_controller(d);
+}