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!

1 files changed, 316 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
new file mode 100644
index 000000000000..3f952237ae3d
--- /dev/null
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -0,0 +1,316 @@
+/*
+ *  linux/arch/arm/mach-pxa/mainstone.c
+ *
+ *  Support for the Intel HCDDBBVA0 Development Platform.
+ *  (go figure how they came up with such name...)
+ *
+ *  Author:     Nicolas Pitre
+ *  Created:    Nov 05, 2002
+ *  Copyright:  MontaVista Software Inc.
+ *
+ *  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.
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/bitops.h>
+#include <linux/fb.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/mainstone.h>
+#include <asm/arch/audio.h>
+#include <asm/arch/pxafb.h>
+#include <asm/arch/mmc.h>
+
+#include "generic.h"
+
+
+static unsigned long mainstone_irq_enabled;
+
+static void mainstone_mask_irq(unsigned int irq)
+{
+        int mainstone_irq = (irq - MAINSTONE_IRQ(0));
+        MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
+}
+
+static void mainstone_unmask_irq(unsigned int irq)
+{
+        int mainstone_irq = (irq - MAINSTONE_IRQ(0));
+        /* the irq can be acknowledged only if deasserted, so it's done here */
+        MST_INTSETCLR &= ~(1 << mainstone_irq);
+        MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
+}
+
+static struct irqchip mainstone_irq_chip = {
+        .ack            = mainstone_mask_irq,
+        .mask           = mainstone_mask_irq,
+        .unmask         = mainstone_unmask_irq,
+};
+
+
+static void mainstone_irq_handler(unsigned int irq, struct irqdesc *desc,
+                                  struct pt_regs *regs)
+{
+        unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
+        do {
+                GEDR(0) = GPIO_bit(0);  /* clear useless edge notification */
+                if (likely(pending)) {
+                        irq = MAINSTONE_IRQ(0) + __ffs(pending);
+                        desc = irq_desc + irq;
+                        desc->handle(irq, desc, regs);
+                }
+                pending = MST_INTSETCLR & mainstone_irq_enabled;
+        } while (pending);
+}
+
+static void __init mainstone_init_irq(void)
+{
+        int irq;
+
+        pxa_init_irq();
+
+        /* setup extra Mainstone irqs */
+        for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
+                set_irq_chip(irq, &mainstone_irq_chip);
+                set_irq_handler(irq, do_level_IRQ);
+                set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+        }
+        set_irq_flags(MAINSTONE_IRQ(8), 0);
+        set_irq_flags(MAINSTONE_IRQ(12), 0);
+
+        MST_INTMSKENA = 0;
+        MST_INTSETCLR = 0;
+
+        set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
+        set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
+}
+
+
+static struct resource smc91x_resources[] = {
+        [0] = {
+                .start  = (MST_ETH_PHYS + 0x300),
+                .end    = (MST_ETH_PHYS + 0xfffff),
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = MAINSTONE_IRQ(3),
+                .end    = MAINSTONE_IRQ(3),
+                .flags  = IORESOURCE_IRQ,
+        }
+};
+
+static struct platform_device smc91x_device = {
+        .name           = "smc91x",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(smc91x_resources),
+        .resource       = smc91x_resources,
+};
+
+static int mst_audio_startup(snd_pcm_substream_t *substream, void *priv)
+{
+        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+                MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
+        return 0;
+}
+
+static void mst_audio_shutdown(snd_pcm_substream_t *substream, void *priv)
+{
+        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+                MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
+}
+
+static long mst_audio_suspend_mask;
+
+static void mst_audio_suspend(void *priv)
+{
+        mst_audio_suspend_mask = MST_MSCWR2;
+        MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
+}
+
+static void mst_audio_resume(void *priv)
+{
+        MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
+}
+
+static pxa2xx_audio_ops_t mst_audio_ops = {
+        .startup        = mst_audio_startup,
+        .shutdown       = mst_audio_shutdown,
+        .suspend        = mst_audio_suspend,
+        .resume         = mst_audio_resume,
+};
+
+static struct platform_device mst_audio_device = {
+        .name           = "pxa2xx-ac97",
+        .id             = -1,
+        .dev            = { .platform_data = &mst_audio_ops },
+};
+
+static void mainstone_backlight_power(int on)
+{
+        if (on) {
+                pxa_gpio_mode(GPIO16_PWM0_MD);
+                pxa_set_cken(CKEN0_PWM0, 1);
+                PWM_CTRL0 = 0;
+                PWM_PWDUTY0 = 0x3ff;
+                PWM_PERVAL0 = 0x3ff;
+        } else {
+                PWM_CTRL0 = 0;
+                PWM_PWDUTY0 = 0x0;
+                PWM_PERVAL0 = 0x3FF;
+                pxa_set_cken(CKEN0_PWM0, 0);
+        }
+}
+
+static struct pxafb_mach_info toshiba_ltm04c380k __initdata = {
+        .pixclock               = 50000,
+        .xres                   = 640,
+        .yres                   = 480,
+        .bpp                    = 16,
+        .hsync_len              = 1,
+        .left_margin            = 0x9f,
+        .right_margin           = 1,
+        .vsync_len              = 44,
+        .upper_margin           = 0,
+        .lower_margin           = 0,
+        .sync                   = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+        .lccr0                  = LCCR0_Act,
+        .lccr3                  = LCCR3_PCP,
+        .pxafb_backlight_power  = mainstone_backlight_power,
+};
+
+static struct pxafb_mach_info toshiba_ltm035a776c __initdata = {
+        .pixclock               = 110000,
+        .xres                   = 240,
+        .yres                   = 320,
+        .bpp                    = 16,
+        .hsync_len              = 4,
+        .left_margin            = 8,
+        .right_margin           = 20,
+        .vsync_len              = 3,
+        .upper_margin           = 1,
+        .lower_margin           = 10,
+        .sync                   = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
+        .lccr0                  = LCCR0_Act,
+        .lccr3                  = LCCR3_PCP,
+        .pxafb_backlight_power  = mainstone_backlight_power,
+};
+
+static int mainstone_mci_init(struct device *dev, irqreturn_t (*mstone_detect_int)(int, void *, struct pt_regs *), void *data)
+{
+        int err;
+
+        /*
+         * setup GPIO for PXA27x MMC controller
+         */
+        pxa_gpio_mode(GPIO32_MMCCLK_MD);
+        pxa_gpio_mode(GPIO112_MMCCMD_MD);
+        pxa_gpio_mode(GPIO92_MMCDAT0_MD);
+        pxa_gpio_mode(GPIO109_MMCDAT1_MD);
+        pxa_gpio_mode(GPIO110_MMCDAT2_MD);
+        pxa_gpio_mode(GPIO111_MMCDAT3_MD);
+
+        /* make sure SD/Memory Stick multiplexer's signals
+         * are routed to MMC controller
+         */
+        MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
+
+        err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, SA_INTERRUPT,
+                             "MMC card detect", data);
+        if (err) {
+                printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
+                return -1;
+        }
+
+        return 0;
+}
+
+static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
+{
+        struct pxamci_platform_data* p_d = dev->platform_data;
+
+        if (( 1 << vdd) & p_d->ocr_mask) {
+                printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
+                MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
+                MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
+        } else {
+                printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
+                MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
+        }
+}
+
+static void mainstone_mci_exit(struct device *dev, void *data)
+{
+        free_irq(MAINSTONE_MMC_IRQ, data);
+}
+
+static struct pxamci_platform_data mainstone_mci_platform_data = {
+        .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
+        .init           = mainstone_mci_init,
+        .setpower       = mainstone_mci_setpower,
+        .exit           = mainstone_mci_exit,
+};
+
+static void __init mainstone_init(void)
+{
+        /*
+         * On Mainstone, we route AC97_SYSCLK via GPIO45 to
+         * the audio daughter card
+         */
+        pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
+
+        platform_device_register(&smc91x_device);
+        platform_device_register(&mst_audio_device);
+
+        /* reading Mainstone's "Virtual Configuration Register"
+           might be handy to select LCD type here */
+        if (0)
+                set_pxa_fb_info(&toshiba_ltm04c380k);
+        else
+                set_pxa_fb_info(&toshiba_ltm035a776c);
+
+        pxa_set_mci_info(&mainstone_mci_platform_data);
+}
+
+
+static struct map_desc mainstone_io_desc[] __initdata = {
+  { MST_FPGA_VIRT, MST_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
+};
+
+static void __init mainstone_map_io(void)
+{
+        pxa_map_io();
+        iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
+
+        /* initialize sleep mode regs (wake-up sources, etc) */
+        PGSR0 = 0x00008800;
+        PGSR1 = 0x00000002;
+        PGSR2 = 0x0001FC00;
+        PGSR3 = 0x00001F81;
+        PWER  = 0xC0000002;
+        PRER  = 0x00000002;
+        PFER  = 0x00000002;
+}
+
+MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
+        MAINTAINER("MontaVista Software Inc.")
+        BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
+        MAPIO(mainstone_map_io)
+        INITIRQ(mainstone_init_irq)
+        .timer          = &pxa_timer,
+        INIT_MACHINE(mainstone_init)
+MACHINE_END