5 files changed, 378 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-hp6xx/Makefile b/arch/sh/boards/mach-hp6xx/Makefile
new file mode 100644
index 00000000000..b3124278247
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the HP6xx specific parts of the kernel
+#
+
+obj-y			:= setup.o
+obj-$(CONFIG_PM)	+= pm.o pm_wakeup.o
+obj-$(CONFIG_APM_EMULATION)	+= hp6xx_apm.o
diff --git a/arch/sh/boards/mach-hp6xx/hp6xx_apm.c b/arch/sh/boards/mach-hp6xx/hp6xx_apm.c
new file mode 100644
index 00000000000..177f4f028e0
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/hp6xx_apm.c
@@ -0,0 +1,111 @@
+/*
+ * bios-less APM driver for hp680
+ *
+ * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com>
+ * Copyright 2008 (c) Kristoffer Ericson <kristoffer.ericson@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/apm-emulation.h>
+#include <linux/io.h>
+#include <asm/adc.h>
+#include <asm/hp6xx.h>
+
+/* percentage values */
+#define APM_CRITICAL			10
+#define APM_LOW				30
+
+/* resonably sane values */
+#define HP680_BATTERY_MAX		898
+#define HP680_BATTERY_MIN		486
+#define HP680_BATTERY_AC_ON		1023
+
+#define MODNAME "hp6x0_apm"
+
+#define PGDR	0xa400012c
+
+static void hp6x0_apm_get_power_status(struct apm_power_info *info)
+{
+	int battery, backup, charging, percentage;
+	u8 pgdr;
+
+	battery		= adc_single(ADC_CHANNEL_BATTERY);
+	backup		= adc_single(ADC_CHANNEL_BACKUP);
+	charging	= adc_single(ADC_CHANNEL_CHARGE);
+
+	percentage = 100 * (battery - HP680_BATTERY_MIN) /
+			   (HP680_BATTERY_MAX - HP680_BATTERY_MIN);
+
+	/* % of full battery */
+	info->battery_life = percentage;
+
+	/* We want our estimates in minutes */
+	info->units = 0;
+
+	/* Extremely(!!) rough estimate, we will replace this with a datalist later on */
+	info->time = (2 * battery);
+
+	info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
+			 APM_AC_ONLINE : APM_AC_OFFLINE;
+
+	pgdr = ctrl_inb(PGDR);
+	if (pgdr & PGDR_MAIN_BATTERY_OUT) {
+		info->battery_status	= APM_BATTERY_STATUS_NOT_PRESENT;
+		info->battery_flag	= 0x80;
+	} else if (charging < 8) {
+		info->battery_status	= APM_BATTERY_STATUS_CHARGING;
+		info->battery_flag	= 0x08;
+		info->ac_line_status	= 0x01;
+	} else if (percentage <= APM_CRITICAL) {
+		info->battery_status	= APM_BATTERY_STATUS_CRITICAL;
+		info->battery_flag	= 0x04;
+	} else if (percentage <= APM_LOW) {
+		info->battery_status	= APM_BATTERY_STATUS_LOW;
+		info->battery_flag	= 0x02;
+	} else {
+		info->battery_status	= APM_BATTERY_STATUS_HIGH;
+		info->battery_flag	= 0x01;
+	}
+}
+
+static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
+{
+	if (!APM_DISABLED)
+		apm_queue_event(APM_USER_SUSPEND);
+
+	return IRQ_HANDLED;
+}
+
+static int __init hp6x0_apm_init(void)
+{
+	int ret;
+
+	ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
+			  IRQF_DISABLED, MODNAME, NULL);
+	if (unlikely(ret < 0)) {
+		printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
+		       HP680_BTN_IRQ);
+		return ret;
+	}
+
+	apm_get_power_status = hp6x0_apm_get_power_status;
+
+	return ret;
+}
+
+static void __exit hp6x0_apm_exit(void)
+{
+	free_irq(HP680_BTN_IRQ, 0);
+}
+
+module_init(hp6x0_apm_init);
+module_exit(hp6x0_apm_exit);
+
+MODULE_AUTHOR("Adriy Skulysh");
+MODULE_DESCRIPTION("hp6xx Advanced Power Management");
+MODULE_LICENSE("GPL");
diff --git a/arch/sh/boards/mach-hp6xx/pm.c b/arch/sh/boards/mach-hp6xx/pm.c
new file mode 100644
index 00000000000..e96684def78
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/pm.c
@@ -0,0 +1,81 @@
+/*
+ * hp6x0 Power Management Routines
+ *
+ * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License.
+ */
+#include <linux/init.h>
+#include <linux/suspend.h>
+#include <linux/errno.h>
+#include <linux/time.h>
+#include <asm/io.h>
+#include <asm/hd64461.h>
+#include <asm/hp6xx.h>
+#include <cpu/dac.h>
+#include <asm/pm.h>
+
+#define STBCR		0xffffff82
+#define STBCR2		0xffffff88
+
+static int hp6x0_pm_enter(suspend_state_t state)
+{
+	u8 stbcr, stbcr2;
+#ifdef CONFIG_HD64461_ENABLER
+	u8 scr;
+	u16 hd64461_stbcr;
+#endif
+
+#ifdef CONFIG_HD64461_ENABLER
+	outb(0, HD64461_PCC1CSCIER);
+
+	scr = inb(HD64461_PCC1SCR);
+	scr |= HD64461_PCCSCR_VCC1;
+	outb(scr, HD64461_PCC1SCR);
+
+	hd64461_stbcr = inw(HD64461_STBCR);
+	hd64461_stbcr |= HD64461_STBCR_SPC1ST;
+	outw(hd64461_stbcr, HD64461_STBCR);
+#endif
+
+	ctrl_outb(0x1f, DACR);
+
+	stbcr = ctrl_inb(STBCR);
+	ctrl_outb(0x01, STBCR);
+
+	stbcr2 = ctrl_inb(STBCR2);
+	ctrl_outb(0x7f , STBCR2);
+
+	outw(0xf07f, HD64461_SCPUCR);
+
+	pm_enter();
+
+	outw(0, HD64461_SCPUCR);
+	ctrl_outb(stbcr, STBCR);
+	ctrl_outb(stbcr2, STBCR2);
+
+#ifdef CONFIG_HD64461_ENABLER
+	hd64461_stbcr = inw(HD64461_STBCR);
+	hd64461_stbcr &= ~HD64461_STBCR_SPC1ST;
+	outw(hd64461_stbcr, HD64461_STBCR);
+
+	outb(0x4c, HD64461_PCC1CSCIER);
+	outb(0x00, HD64461_PCC1CSCR);
+#endif
+
+	return 0;
+}
+
+static struct platform_suspend_ops hp6x0_pm_ops = {
+	.enter		= hp6x0_pm_enter,
+	.valid		= suspend_valid_only_mem,
+};
+
+static int __init hp6x0_pm_init(void)
+{
+	suspend_set_ops(&hp6x0_pm_ops);
+	return 0;
+}
+
+late_initcall(hp6x0_pm_init);
diff --git a/arch/sh/boards/mach-hp6xx/pm_wakeup.S b/arch/sh/boards/mach-hp6xx/pm_wakeup.S
new file mode 100644
index 00000000000..44b648cf6f2
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/pm_wakeup.S
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
+ *
+ * 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/linkage.h>
+#include <cpu/mmu_context.h>
+
+#define k0	r0
+#define k1	r1
+#define k2	r2
+#define k3	r3
+#define k4	r4
+
+/*
+ * Kernel mode register usage:
+ *	k0	scratch
+ *	k1	scratch
+ *	k2	scratch (Exception code)
+ *	k3	scratch (Return address)
+ *	k4	scratch
+ *	k5	reserved
+ *	k6	Global Interrupt Mask (0--15 << 4)
+ *	k7	CURRENT_THREAD_INFO (pointer to current thread info)
+ */
+
+ENTRY(wakeup_start)
+! clear STBY bit
+	mov	#-126, k2
+   	and	#127, k0
+	mov.b	k0, @k2
+! enable refresh
+	mov.l	5f, k1
+	mov.w	6f, k0
+  	mov.w	k0, @k1
+! jump to handler
+	mov.l	2f, k2
+	mov.l	3f, k3
+	mov.l	@k2, k2
+
+	mov.l	4f, k1
+	jmp	@k1
+	nop
+
+	.align	2
+1:	.long	EXPEVT
+2:	.long	INTEVT
+3:	.long	ret_from_irq
+4:	.long	handle_exception
+5:	.long	0xffffff68
+6:	.word	0x0524
+
+ENTRY(wakeup_end)
+	nop
diff --git a/arch/sh/boards/mach-hp6xx/setup.c b/arch/sh/boards/mach-hp6xx/setup.c
new file mode 100644
index 00000000000..475b46caec1
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/setup.c
@@ -0,0 +1,121 @@
+/*
+ * linux/arch/sh/boards/hp6xx/setup.c
+ *
+ * Copyright (C) 2002 Andriy Skulysh
+ * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
+ */
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <asm/hd64461.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/hp6xx.h>
+#include <cpu/dac.h>
+
+#define	SCPCR	0xa4000116
+#define	SCPDR	0xa4000136
+
+/* CF Slot */
+static struct resource cf_ide_resources[] = {
+	[0] = {
+		.start = 0x15000000 + 0x1f0,
+		.end   = 0x15000000 + 0x1f0 + 0x08 - 0x01,
+		.flags = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start = 0x15000000 + 0x1fe,
+		.end   = 0x15000000 + 0x1fe + 0x01,
+		.flags = IORESOURCE_MEM,
+	},
+	[2] = {
+		.start = 77,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device cf_ide_device = {
+	.name		=  "pata_platform",
+	.id		=  -1,
+	.num_resources	= ARRAY_SIZE(cf_ide_resources),
+	.resource	= cf_ide_resources,
+};
+
+static struct platform_device jornadakbd_device = {
+	.name		= "jornada680_kbd",
+	.id		= -1,
+};
+
+static struct platform_device *hp6xx_devices[] __initdata = {
+	&cf_ide_device,
+	&jornadakbd_device,
+};
+
+static void __init hp6xx_init_irq(void)
+{
+	/* Gets touchscreen and powerbutton IRQ working */
+	plat_irq_setup_pins(IRQ_MODE_IRQ);
+}
+
+static int __init hp6xx_devices_setup(void)
+{
+	return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
+}
+
+static void __init hp6xx_setup(char **cmdline_p)
+{
+	u8 v8;
+	u16 v;
+
+	v = inw(HD64461_STBCR);
+	v |=	HD64461_STBCR_SURTST | HD64461_STBCR_SIRST	|
+		HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST	|
+		HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST	|
+		HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
+		HD64461_STBCR_SAFECKE_IST;
+#ifndef CONFIG_HD64461_ENABLER
+	v |= HD64461_STBCR_SPC1ST;
+#endif
+	outw(v, HD64461_STBCR);
+	v = inw(HD64461_GPADR);
+	v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
+	outw(v, HD64461_GPADR);
+
+	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
+
+#ifndef CONFIG_HD64461_ENABLER
+	outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
+#endif
+
+	sh_dac_output(0, DAC_SPEAKER_VOLUME);
+	sh_dac_disable(DAC_SPEAKER_VOLUME);
+	v8 = ctrl_inb(DACR);
+	v8 &= ~DACR_DAE;
+	ctrl_outb(v8,DACR);
+
+	v8 = ctrl_inb(SCPDR);
+	v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
+	v8 &= ~SCPDR_TS_SCAN_ENABLE;
+	ctrl_outb(v8, SCPDR);
+
+	v = ctrl_inw(SCPCR);
+	v &= ~SCPCR_TS_MASK;
+	v |= SCPCR_TS_ENABLE;
+	ctrl_outw(v, SCPCR);
+}
+device_initcall(hp6xx_devices_setup);
+
+static struct sh_machine_vector mv_hp6xx __initmv = {
+	.mv_name = "hp6xx",
+	.mv_setup = hp6xx_setup,
+	/* IRQ's : CPU(64) + CCHIP(16) + FREE_TO_USE(6) */
+	.mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM + 6,
+	.mv_irq_demux = hd64461_irq_demux,
+	/* Enable IRQ0 -> IRQ3 in IRQ_MODE */
+	.mv_init_irq = hp6xx_init_irq,
+};