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-rw-r--r--arch/sh/boards/cqreek/Makefile6
-rw-r--r--arch/sh/boards/cqreek/irq.c128
-rw-r--r--arch/sh/boards/cqreek/setup.c101
3 files changed, 235 insertions, 0 deletions
diff --git a/arch/sh/boards/cqreek/Makefile b/arch/sh/boards/cqreek/Makefile
new file mode 100644
index 00000000000..1a788a85eba
--- /dev/null
+++ b/arch/sh/boards/cqreek/Makefile
@@ -0,0 +1,6 @@
+#
+# Makefile for the CqREEK specific parts of the kernel
+#
+
+obj-y := setup.o irq.o
+
diff --git a/arch/sh/boards/cqreek/irq.c b/arch/sh/boards/cqreek/irq.c
new file mode 100644
index 00000000000..fa6cfe5a20a
--- /dev/null
+++ b/arch/sh/boards/cqreek/irq.c
@@ -0,0 +1,128 @@
+/* $Id: irq.c,v 1.1.2.4 2002/11/04 20:33:56 lethal Exp $
+ *
+ * arch/sh/boards/cqreek/irq.c
+ *
+ * Copyright (C) 2000 Niibe Yutaka
+ *
+ * CqREEK IDE/ISA Bridge Support.
+ *
+ */
+
+#include <linux/irq.h>
+#include <linux/init.h>
+
+#include <asm/cqreek/cqreek.h>
+#include <asm/io.h>
+#include <asm/io_generic.h>
+#include <asm/irq.h>
+#include <asm/machvec.h>
+#include <asm/machvec_init.h>
+#include <asm/rtc.h>
+
+struct cqreek_irq_data {
+ unsigned short mask_port; /* Port of Interrupt Mask Register */
+ unsigned short stat_port; /* Port of Interrupt Status Register */
+ unsigned short bit; /* Value of the bit */
+};
+static struct cqreek_irq_data cqreek_irq_data[NR_IRQS];
+
+static void disable_cqreek_irq(unsigned int irq)
+{
+ unsigned long flags;
+ unsigned short mask;
+ unsigned short mask_port = cqreek_irq_data[irq].mask_port;
+ unsigned short bit = cqreek_irq_data[irq].bit;
+
+ local_irq_save(flags);
+ /* Disable IRQ */
+ mask = inw(mask_port) & ~bit;
+ outw_p(mask, mask_port);
+ local_irq_restore(flags);
+}
+
+static void enable_cqreek_irq(unsigned int irq)
+{
+ unsigned long flags;
+ unsigned short mask;
+ unsigned short mask_port = cqreek_irq_data[irq].mask_port;
+ unsigned short bit = cqreek_irq_data[irq].bit;
+
+ local_irq_save(flags);
+ /* Enable IRQ */
+ mask = inw(mask_port) | bit;
+ outw_p(mask, mask_port);
+ local_irq_restore(flags);
+}
+
+static void mask_and_ack_cqreek(unsigned int irq)
+{
+ unsigned short stat_port = cqreek_irq_data[irq].stat_port;
+ unsigned short bit = cqreek_irq_data[irq].bit;
+
+ disable_cqreek_irq(irq);
+ /* Clear IRQ (it might be edge IRQ) */
+ inw(stat_port);
+ outw_p(bit, stat_port);
+}
+
+static void end_cqreek_irq(unsigned int irq)
+{
+ if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+ enable_cqreek_irq(irq);
+}
+
+static unsigned int startup_cqreek_irq(unsigned int irq)
+{
+ enable_cqreek_irq(irq);
+ return 0;
+}
+
+static void shutdown_cqreek_irq(unsigned int irq)
+{
+ disable_cqreek_irq(irq);
+}
+
+static struct hw_interrupt_type cqreek_irq_type = {
+ "CqREEK-IRQ",
+ startup_cqreek_irq,
+ shutdown_cqreek_irq,
+ enable_cqreek_irq,
+ disable_cqreek_irq,
+ mask_and_ack_cqreek,
+ end_cqreek_irq
+};
+
+int cqreek_has_ide, cqreek_has_isa;
+
+/* XXX: This is just for test for my NE2000 ISA board
+ What we really need is virtualized IRQ and demultiplexer like HP600 port */
+void __init init_cqreek_IRQ(void)
+{
+ if (cqreek_has_ide) {
+ cqreek_irq_data[14].mask_port = BRIDGE_IDE_INTR_MASK;
+ cqreek_irq_data[14].stat_port = BRIDGE_IDE_INTR_STAT;
+ cqreek_irq_data[14].bit = 1;
+
+ irq_desc[14].handler = &cqreek_irq_type;
+ irq_desc[14].status = IRQ_DISABLED;
+ irq_desc[14].action = 0;
+ irq_desc[14].depth = 1;
+
+ disable_cqreek_irq(14);
+ }
+
+ if (cqreek_has_isa) {
+ cqreek_irq_data[10].mask_port = BRIDGE_ISA_INTR_MASK;
+ cqreek_irq_data[10].stat_port = BRIDGE_ISA_INTR_STAT;
+ cqreek_irq_data[10].bit = (1 << 10);
+
+ /* XXX: Err... we may need demultiplexer for ISA irq... */
+ irq_desc[10].handler = &cqreek_irq_type;
+ irq_desc[10].status = IRQ_DISABLED;
+ irq_desc[10].action = 0;
+ irq_desc[10].depth = 1;
+
+ disable_cqreek_irq(10);
+ }
+}
+
diff --git a/arch/sh/boards/cqreek/setup.c b/arch/sh/boards/cqreek/setup.c
new file mode 100644
index 00000000000..29b537cd654
--- /dev/null
+++ b/arch/sh/boards/cqreek/setup.c
@@ -0,0 +1,101 @@
+/* $Id: setup.c,v 1.5 2003/08/04 01:51:58 lethal Exp $
+ *
+ * arch/sh/kernel/setup_cqreek.c
+ *
+ * Copyright (C) 2000 Niibe Yutaka
+ *
+ * CqREEK IDE/ISA Bridge Support.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/mach/cqreek.h>
+#include <asm/machvec.h>
+#include <asm/io.h>
+#include <asm/io_generic.h>
+#include <asm/irq.h>
+#include <asm/rtc.h>
+
+#define IDE_OFFSET 0xA4000000UL
+#define ISA_OFFSET 0xA4A00000UL
+
+const char *get_system_type(void)
+{
+ return "CqREEK";
+}
+
+static unsigned long cqreek_port2addr(unsigned long port)
+{
+ if (0x0000<=port && port<=0x0040)
+ return IDE_OFFSET + port;
+ if ((0x01f0<=port && port<=0x01f7) || port == 0x03f6)
+ return IDE_OFFSET + port;
+
+ return ISA_OFFSET + port;
+}
+
+/*
+ * The Machine Vector
+ */
+struct sh_machine_vector mv_cqreek __initmv = {
+#if defined(CONFIG_CPU_SH4)
+ .mv_nr_irqs = 48,
+#elif defined(CONFIG_CPU_SUBTYPE_SH7708)
+ .mv_nr_irqs = 32,
+#elif defined(CONFIG_CPU_SUBTYPE_SH7709)
+ .mv_nr_irqs = 61,
+#endif
+
+ .mv_init_irq = init_cqreek_IRQ,
+
+ .mv_isa_port2addr = cqreek_port2addr,
+};
+ALIAS_MV(cqreek)
+
+/*
+ * Initialize the board
+ */
+void __init platform_setup(void)
+{
+ int i;
+/* udelay is not available at setup time yet... */
+#define DELAY() do {for (i=0; i<10000; i++) ctrl_inw(0xa0000000);} while(0)
+
+ if ((inw (BRIDGE_FEATURE) & 1)) { /* We have IDE interface */
+ outw_p(0, BRIDGE_IDE_INTR_LVL);
+ outw_p(0, BRIDGE_IDE_INTR_MASK);
+
+ outw_p(0, BRIDGE_IDE_CTRL);
+ DELAY();
+
+ outw_p(0x8000, BRIDGE_IDE_CTRL);
+ DELAY();
+
+ outw_p(0xffff, BRIDGE_IDE_INTR_STAT); /* Clear interrupt status */
+ outw_p(0x0f-14, BRIDGE_IDE_INTR_LVL); /* Use 14 IPR */
+ outw_p(1, BRIDGE_IDE_INTR_MASK); /* Enable interrupt */
+ cqreek_has_ide=1;
+ }
+
+ if ((inw (BRIDGE_FEATURE) & 2)) { /* We have ISA interface */
+ outw_p(0, BRIDGE_ISA_INTR_LVL);
+ outw_p(0, BRIDGE_ISA_INTR_MASK);
+
+ outw_p(0, BRIDGE_ISA_CTRL);
+ DELAY();
+ outw_p(0x8000, BRIDGE_ISA_CTRL);
+ DELAY();
+
+ outw_p(0xffff, BRIDGE_ISA_INTR_STAT); /* Clear interrupt status */
+ outw_p(0x0f-10, BRIDGE_ISA_INTR_LVL); /* Use 10 IPR */
+ outw_p(0xfff8, BRIDGE_ISA_INTR_MASK); /* Enable interrupt */
+ cqreek_has_isa=1;
+ }
+
+ printk(KERN_INFO "CqREEK Setup (IDE=%d, ISA=%d)...done\n", cqreek_has_ide, cqreek_has_isa);
+}
+
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