Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

3 files changed, 387 insertions, 0 deletions

diff --git a/arch/arm/mach-clps7500/Makefile b/arch/arm/mach-clps7500/Makefile
new file mode 100644
index 000000000000..4bd8ebd70e7b
--- /dev/null
+++ b/arch/arm/mach-clps7500/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y                   := core.o
+obj-m                   :=
+obj-n                   :=
+obj-                    :=
+
diff --git a/arch/arm/mach-clps7500/Makefile.boot b/arch/arm/mach-clps7500/Makefile.boot
new file mode 100644
index 000000000000..fe16506c1540
--- /dev/null
+++ b/arch/arm/mach-clps7500/Makefile.boot
@@ -0,0 +1,2 @@
+   zreladdr-y   := 0x10008000
+
diff --git a/arch/arm/mach-clps7500/core.c b/arch/arm/mach-clps7500/core.c
new file mode 100644
index 000000000000..fdfededfd96f
--- /dev/null
+++ b/arch/arm/mach-clps7500/core.c
@@ -0,0 +1,374 @@
+/*
+ *  linux/arch/arm/mach-clps7500/core.c
+ *
+ *  Copyright (C) 1998 Russell King
+ *  Copyright (C) 1999 Nexus Electronics Ltd
+ *
+ * Extra MM routines for CL7500 architecture
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial_8250.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+#include <asm/hardware.h>
+#include <asm/hardware/iomd.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+static void cl7500_ack_irq_a(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << irq;
+        val = iomd_readb(IOMD_IRQMASKA);
+        iomd_writeb(val & ~mask, IOMD_IRQMASKA);
+        iomd_writeb(mask, IOMD_IRQCLRA);
+}
+
+static void cl7500_mask_irq_a(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << irq;
+        val = iomd_readb(IOMD_IRQMASKA);
+        iomd_writeb(val & ~mask, IOMD_IRQMASKA);
+}
+
+static void cl7500_unmask_irq_a(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << irq;
+        val = iomd_readb(IOMD_IRQMASKA);
+        iomd_writeb(val | mask, IOMD_IRQMASKA);
+}
+
+static struct irqchip clps7500_a_chip = {
+        .ack    = cl7500_ack_irq_a,
+        .mask   = cl7500_mask_irq_a,
+        .unmask = cl7500_unmask_irq_a,
+};
+
+static void cl7500_mask_irq_b(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKB);
+        iomd_writeb(val & ~mask, IOMD_IRQMASKB);
+}
+
+static void cl7500_unmask_irq_b(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKB);
+        iomd_writeb(val | mask, IOMD_IRQMASKB);
+}
+
+static struct irqchip clps7500_b_chip = {
+        .ack    = cl7500_mask_irq_b,
+        .mask   = cl7500_mask_irq_b,
+        .unmask = cl7500_unmask_irq_b,
+};
+
+static void cl7500_mask_irq_c(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKC);
+        iomd_writeb(val & ~mask, IOMD_IRQMASKC);
+}
+
+static void cl7500_unmask_irq_c(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKC);
+        iomd_writeb(val | mask, IOMD_IRQMASKC);
+}
+
+static struct irqchip clps7500_c_chip = {
+        .ack    = cl7500_mask_irq_c,
+        .mask   = cl7500_mask_irq_c,
+        .unmask = cl7500_unmask_irq_c,
+};
+
+static void cl7500_mask_irq_d(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKD);
+        iomd_writeb(val & ~mask, IOMD_IRQMASKD);
+}
+
+static void cl7500_unmask_irq_d(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_IRQMASKD);
+        iomd_writeb(val | mask, IOMD_IRQMASKD);
+}
+
+static struct irqchip clps7500_d_chip = {
+        .ack    = cl7500_mask_irq_d,
+        .mask   = cl7500_mask_irq_d,
+        .unmask = cl7500_unmask_irq_d,
+};
+
+static void cl7500_mask_irq_dma(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_DMAMASK);
+        iomd_writeb(val & ~mask, IOMD_DMAMASK);
+}
+
+static void cl7500_unmask_irq_dma(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_DMAMASK);
+        iomd_writeb(val | mask, IOMD_DMAMASK);
+}
+
+static struct irqchip clps7500_dma_chip = {
+        .ack    = cl7500_mask_irq_dma,
+        .mask   = cl7500_mask_irq_dma,
+        .unmask = cl7500_unmask_irq_dma,
+};
+
+static void cl7500_mask_irq_fiq(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_FIQMASK);
+        iomd_writeb(val & ~mask, IOMD_FIQMASK);
+}
+
+static void cl7500_unmask_irq_fiq(unsigned int irq)
+{
+        unsigned int val, mask;
+
+        mask = 1 << (irq & 7);
+        val = iomd_readb(IOMD_FIQMASK);
+        iomd_writeb(val | mask, IOMD_FIQMASK);
+}
+
+static struct irqchip clps7500_fiq_chip = {
+        .ack    = cl7500_mask_irq_fiq,
+        .mask   = cl7500_mask_irq_fiq,
+        .unmask = cl7500_unmask_irq_fiq,
+};
+
+static void cl7500_no_action(unsigned int irq)
+{
+}
+
+static struct irqchip clps7500_no_chip = {
+        .ack    = cl7500_no_action,
+        .mask   = cl7500_no_action,
+        .unmask = cl7500_no_action,
+};
+
+static struct irqaction irq_isa = { no_action, 0, CPU_MASK_NONE, "isa", NULL, NULL };
+
+static void __init clps7500_init_irq(void)
+{
+        unsigned int irq, flags;
+
+        iomd_writeb(0, IOMD_IRQMASKA);
+        iomd_writeb(0, IOMD_IRQMASKB);
+        iomd_writeb(0, IOMD_FIQMASK);
+        iomd_writeb(0, IOMD_DMAMASK);
+
+        for (irq = 0; irq < NR_IRQS; irq++) {
+                flags = IRQF_VALID;
+
+                if (irq <= 6 || (irq >= 9 && irq <= 15) ||
+                    (irq >= 48 && irq <= 55))
+                        flags |= IRQF_PROBE;
+
+                switch (irq) {
+                case 0 ... 7:
+                        set_irq_chip(irq, &clps7500_a_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 8 ... 15:
+                        set_irq_chip(irq, &clps7500_b_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 16 ... 22:
+                        set_irq_chip(irq, &clps7500_dma_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 24 ... 31:
+                        set_irq_chip(irq, &clps7500_c_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 40 ... 47:
+                        set_irq_chip(irq, &clps7500_d_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 48 ... 55:
+                        set_irq_chip(irq, &clps7500_no_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+
+                case 64 ... 72:
+                        set_irq_chip(irq, &clps7500_fiq_chip);
+                        set_irq_handler(irq, do_level_IRQ);
+                        set_irq_flags(irq, flags);
+                        break;
+                }
+        }
+
+        setup_irq(IRQ_ISA, &irq_isa);
+}
+
+static struct map_desc cl7500_io_desc[] __initdata = {
+        { IO_BASE,      IO_START,       IO_SIZE,    MT_DEVICE },        /* IO space     */
+        { ISA_BASE,     ISA_START,      ISA_SIZE,   MT_DEVICE },        /* ISA space    */
+        { FLASH_BASE,   FLASH_START,    FLASH_SIZE, MT_DEVICE },        /* Flash        */
+        { LED_BASE,     LED_START,      LED_SIZE,   MT_DEVICE }         /* LED          */
+};
+
+static void __init clps7500_map_io(void)
+{
+        iotable_init(cl7500_io_desc, ARRAY_SIZE(cl7500_io_desc));
+}
+
+extern void ioctime_init(void);
+extern unsigned long ioc_timer_gettimeoffset(void);
+
+static irqreturn_t
+clps7500_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+        write_seqlock(&xtime_lock);
+
+        timer_tick(regs);
+
+        /* Why not using do_leds interface?? */
+        {
+                /* Twinkle the lights. */
+                static int count, state = 0xff00;
+                if (count-- == 0) {
+                        state ^= 0x100;
+                        count = 25;
+                        *((volatile unsigned int *)LED_ADDRESS) = state;
+                }
+        }
+
+        write_sequnlock(&xtime_lock);
+
+        return IRQ_HANDLED;
+}
+
+static struct irqaction clps7500_timer_irq = {
+        .name           = "CLPS7500 Timer Tick",
+        .flags          = SA_INTERRUPT,
+        .handler        = clps7500_timer_interrupt
+};
+
+/*
+ * Set up timer interrupt.
+ */
+static void __init clps7500_timer_init(void)
+{
+        ioctime_init();
+        setup_irq(IRQ_TIMER, &clps7500_timer_irq);
+}
+
+static struct sys_timer clps7500_timer = {
+        .init           = clps7500_timer_init,
+        .offset         = ioc_timer_gettimeoffset,
+};
+
+static struct plat_serial8250_port serial_platform_data[] = {
+        {
+                .mapbase        = 0x03010fe0,
+                .irq            = 10,
+                .uartclk        = 1843200,
+                .regshift       = 2,
+                .iotype         = UPIO_MEM,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SKIP_TEST,
+        },
+        {
+                .mapbase        = 0x03010be0,
+                .irq            = 0,
+                .uartclk        = 1843200,
+                .regshift       = 2,
+                .iotype         = UPIO_MEM,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SKIP_TEST,
+        },
+        {
+                .iobase         = ISASLOT_IO + 0x2e8,
+                .irq            = 41,
+                .uartclk        = 1843200,
+                .regshift       = 0,
+                .iotype         = UPIO_PORT,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+        },
+        {
+                .iobase         = ISASLOT_IO + 0x3e8,
+                .irq            = 40,
+                .uartclk        = 1843200,
+                .regshift       = 0,
+                .iotype         = UPIO_PORT,
+                .flags          = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+        },
+        { },
+};
+
+static struct platform_device serial_device = {
+        .name                   = "serial8250",
+        .id                     = 0,
+        .dev                    = {
+                .platform_data  = serial_platform_data,
+        },
+};
+
+static void __init clps7500_init(void)
+{
+        platform_device_register(&serial_device);
+}
+
+MACHINE_START(CLPS7500, "CL-PS7500")
+        MAINTAINER("Philip Blundell")
+        BOOT_MEM(0x10000000, 0x03000000, 0xe0000000)
+        MAPIO(clps7500_map_io)
+        INITIRQ(clps7500_init_irq)
+                .init_machine   = clps7500_init,
+                .timer          = &clps7500_timer,
+MACHINE_END
+