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-rw-r--r--arch/sh/boards/mach-hp6xx/Makefile7
-rw-r--r--arch/sh/boards/mach-hp6xx/hp6xx_apm.c111
-rw-r--r--arch/sh/boards/mach-hp6xx/pm.c81
-rw-r--r--arch/sh/boards/mach-hp6xx/pm_wakeup.S58
-rw-r--r--arch/sh/boards/mach-hp6xx/setup.c121
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 000000000000..b3124278247c
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/Makefile
@@ -0,0 +1,7 @@
1#
2# Makefile for the HP6xx specific parts of the kernel
3#
4
5obj-y := setup.o
6obj-$(CONFIG_PM) += pm.o pm_wakeup.o
7obj-$(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 000000000000..177f4f028e0d
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/hp6xx_apm.c
@@ -0,0 +1,111 @@
1/*
2 * bios-less APM driver for hp680
3 *
4 * Copyright 2005 (c) Andriy Skulysh <askulysh@gmail.com>
5 * Copyright 2008 (c) Kristoffer Ericson <kristoffer.ericson@gmail.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License.
9 */
10#include <linux/module.h>
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/apm-emulation.h>
15#include <linux/io.h>
16#include <asm/adc.h>
17#include <asm/hp6xx.h>
18
19/* percentage values */
20#define APM_CRITICAL 10
21#define APM_LOW 30
22
23/* resonably sane values */
24#define HP680_BATTERY_MAX 898
25#define HP680_BATTERY_MIN 486
26#define HP680_BATTERY_AC_ON 1023
27
28#define MODNAME "hp6x0_apm"
29
30#define PGDR 0xa400012c
31
32static void hp6x0_apm_get_power_status(struct apm_power_info *info)
33{
34 int battery, backup, charging, percentage;
35 u8 pgdr;
36
37 battery = adc_single(ADC_CHANNEL_BATTERY);
38 backup = adc_single(ADC_CHANNEL_BACKUP);
39 charging = adc_single(ADC_CHANNEL_CHARGE);
40
41 percentage = 100 * (battery - HP680_BATTERY_MIN) /
42 (HP680_BATTERY_MAX - HP680_BATTERY_MIN);
43
44 /* % of full battery */
45 info->battery_life = percentage;
46
47 /* We want our estimates in minutes */
48 info->units = 0;
49
50 /* Extremely(!!) rough estimate, we will replace this with a datalist later on */
51 info->time = (2 * battery);
52
53 info->ac_line_status = (battery > HP680_BATTERY_AC_ON) ?
54 APM_AC_ONLINE : APM_AC_OFFLINE;
55
56 pgdr = ctrl_inb(PGDR);
57 if (pgdr & PGDR_MAIN_BATTERY_OUT) {
58 info->battery_status = APM_BATTERY_STATUS_NOT_PRESENT;
59 info->battery_flag = 0x80;
60 } else if (charging < 8) {
61 info->battery_status = APM_BATTERY_STATUS_CHARGING;
62 info->battery_flag = 0x08;
63 info->ac_line_status = 0x01;
64 } else if (percentage <= APM_CRITICAL) {
65 info->battery_status = APM_BATTERY_STATUS_CRITICAL;
66 info->battery_flag = 0x04;
67 } else if (percentage <= APM_LOW) {
68 info->battery_status = APM_BATTERY_STATUS_LOW;
69 info->battery_flag = 0x02;
70 } else {
71 info->battery_status = APM_BATTERY_STATUS_HIGH;
72 info->battery_flag = 0x01;
73 }
74}
75
76static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
77{
78 if (!APM_DISABLED)
79 apm_queue_event(APM_USER_SUSPEND);
80
81 return IRQ_HANDLED;
82}
83
84static int __init hp6x0_apm_init(void)
85{
86 int ret;
87
88 ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
89 IRQF_DISABLED, MODNAME, NULL);
90 if (unlikely(ret < 0)) {
91 printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
92 HP680_BTN_IRQ);
93 return ret;
94 }
95
96 apm_get_power_status = hp6x0_apm_get_power_status;
97
98 return ret;
99}
100
101static void __exit hp6x0_apm_exit(void)
102{
103 free_irq(HP680_BTN_IRQ, 0);
104}
105
106module_init(hp6x0_apm_init);
107module_exit(hp6x0_apm_exit);
108
109MODULE_AUTHOR("Adriy Skulysh");
110MODULE_DESCRIPTION("hp6xx Advanced Power Management");
111MODULE_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 000000000000..e96684def788
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/pm.c
@@ -0,0 +1,81 @@
1/*
2 * hp6x0 Power Management Routines
3 *
4 * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License.
8 */
9#include <linux/init.h>
10#include <linux/suspend.h>
11#include <linux/errno.h>
12#include <linux/time.h>
13#include <asm/io.h>
14#include <asm/hd64461.h>
15#include <asm/hp6xx.h>
16#include <cpu/dac.h>
17#include <asm/pm.h>
18
19#define STBCR 0xffffff82
20#define STBCR2 0xffffff88
21
22static int hp6x0_pm_enter(suspend_state_t state)
23{
24 u8 stbcr, stbcr2;
25#ifdef CONFIG_HD64461_ENABLER
26 u8 scr;
27 u16 hd64461_stbcr;
28#endif
29
30#ifdef CONFIG_HD64461_ENABLER
31 outb(0, HD64461_PCC1CSCIER);
32
33 scr = inb(HD64461_PCC1SCR);
34 scr |= HD64461_PCCSCR_VCC1;
35 outb(scr, HD64461_PCC1SCR);
36
37 hd64461_stbcr = inw(HD64461_STBCR);
38 hd64461_stbcr |= HD64461_STBCR_SPC1ST;
39 outw(hd64461_stbcr, HD64461_STBCR);
40#endif
41
42 ctrl_outb(0x1f, DACR);
43
44 stbcr = ctrl_inb(STBCR);
45 ctrl_outb(0x01, STBCR);
46
47 stbcr2 = ctrl_inb(STBCR2);
48 ctrl_outb(0x7f , STBCR2);
49
50 outw(0xf07f, HD64461_SCPUCR);
51
52 pm_enter();
53
54 outw(0, HD64461_SCPUCR);
55 ctrl_outb(stbcr, STBCR);
56 ctrl_outb(stbcr2, STBCR2);
57
58#ifdef CONFIG_HD64461_ENABLER
59 hd64461_stbcr = inw(HD64461_STBCR);
60 hd64461_stbcr &= ~HD64461_STBCR_SPC1ST;
61 outw(hd64461_stbcr, HD64461_STBCR);
62
63 outb(0x4c, HD64461_PCC1CSCIER);
64 outb(0x00, HD64461_PCC1CSCR);
65#endif
66
67 return 0;
68}
69
70static struct platform_suspend_ops hp6x0_pm_ops = {
71 .enter = hp6x0_pm_enter,
72 .valid = suspend_valid_only_mem,
73};
74
75static int __init hp6x0_pm_init(void)
76{
77 suspend_set_ops(&hp6x0_pm_ops);
78 return 0;
79}
80
81late_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 000000000000..44b648cf6f23
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/pm_wakeup.S
@@ -0,0 +1,58 @@
1/*
2 * Copyright (c) 2006 Andriy Skulysh <askulsyh@gmail.com>
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 */
9
10#include <linux/linkage.h>
11#include <cpu/mmu_context.h>
12
13#define k0 r0
14#define k1 r1
15#define k2 r2
16#define k3 r3
17#define k4 r4
18
19/*
20 * Kernel mode register usage:
21 * k0 scratch
22 * k1 scratch
23 * k2 scratch (Exception code)
24 * k3 scratch (Return address)
25 * k4 scratch
26 * k5 reserved
27 * k6 Global Interrupt Mask (0--15 << 4)
28 * k7 CURRENT_THREAD_INFO (pointer to current thread info)
29 */
30
31ENTRY(wakeup_start)
32! clear STBY bit
33 mov #-126, k2
34 and #127, k0
35 mov.b k0, @k2
36! enable refresh
37 mov.l 5f, k1
38 mov.w 6f, k0
39 mov.w k0, @k1
40! jump to handler
41 mov.l 2f, k2
42 mov.l 3f, k3
43 mov.l @k2, k2
44
45 mov.l 4f, k1
46 jmp @k1
47 nop
48
49 .align 2
501: .long EXPEVT
512: .long INTEVT
523: .long ret_from_irq
534: .long handle_exception
545: .long 0xffffff68
556: .word 0x0524
56
57ENTRY(wakeup_end)
58 nop
diff --git a/arch/sh/boards/mach-hp6xx/setup.c b/arch/sh/boards/mach-hp6xx/setup.c
new file mode 100644
index 000000000000..475b46caec1f
--- /dev/null
+++ b/arch/sh/boards/mach-hp6xx/setup.c
@@ -0,0 +1,121 @@
1/*
2 * linux/arch/sh/boards/hp6xx/setup.c
3 *
4 * Copyright (C) 2002 Andriy Skulysh
5 * Copyright (C) 2007 Kristoffer Ericson <Kristoffer_e1@hotmail.com>
6 *
7 * May be copied or modified under the terms of the GNU General Public
8 * License. See linux/COPYING for more information.
9 *
10 * Setup code for HP620/HP660/HP680/HP690 (internal peripherials only)
11 */
12#include <linux/types.h>
13#include <linux/init.h>
14#include <linux/platform_device.h>
15#include <asm/hd64461.h>
16#include <asm/io.h>
17#include <asm/irq.h>
18#include <asm/hp6xx.h>
19#include <cpu/dac.h>
20
21#define SCPCR 0xa4000116
22#define SCPDR 0xa4000136
23
24/* CF Slot */
25static struct resource cf_ide_resources[] = {
26 [0] = {
27 .start = 0x15000000 + 0x1f0,
28 .end = 0x15000000 + 0x1f0 + 0x08 - 0x01,
29 .flags = IORESOURCE_MEM,
30 },
31 [1] = {
32 .start = 0x15000000 + 0x1fe,
33 .end = 0x15000000 + 0x1fe + 0x01,
34 .flags = IORESOURCE_MEM,
35 },
36 [2] = {
37 .start = 77,
38 .flags = IORESOURCE_IRQ,
39 },
40};
41
42static struct platform_device cf_ide_device = {
43 .name = "pata_platform",
44 .id = -1,
45 .num_resources = ARRAY_SIZE(cf_ide_resources),
46 .resource = cf_ide_resources,
47};
48
49static struct platform_device jornadakbd_device = {
50 .name = "jornada680_kbd",
51 .id = -1,
52};
53
54static struct platform_device *hp6xx_devices[] __initdata = {
55 &cf_ide_device,
56 &jornadakbd_device,
57};
58
59static void __init hp6xx_init_irq(void)
60{
61 /* Gets touchscreen and powerbutton IRQ working */
62 plat_irq_setup_pins(IRQ_MODE_IRQ);
63}
64
65static int __init hp6xx_devices_setup(void)
66{
67 return platform_add_devices(hp6xx_devices, ARRAY_SIZE(hp6xx_devices));
68}
69
70static void __init hp6xx_setup(char **cmdline_p)
71{
72 u8 v8;
73 u16 v;
74
75 v = inw(HD64461_STBCR);
76 v |= HD64461_STBCR_SURTST | HD64461_STBCR_SIRST |
77 HD64461_STBCR_STM1ST | HD64461_STBCR_STM0ST |
78 HD64461_STBCR_SAFEST | HD64461_STBCR_SPC0ST |
79 HD64461_STBCR_SMIAST | HD64461_STBCR_SAFECKE_OST|
80 HD64461_STBCR_SAFECKE_IST;
81#ifndef CONFIG_HD64461_ENABLER
82 v |= HD64461_STBCR_SPC1ST;
83#endif
84 outw(v, HD64461_STBCR);
85 v = inw(HD64461_GPADR);
86 v |= HD64461_GPADR_SPEAKER | HD64461_GPADR_PCMCIA0;
87 outw(v, HD64461_GPADR);
88
89 outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC0GCR);
90
91#ifndef CONFIG_HD64461_ENABLER
92 outw(HD64461_PCCGCR_VCC0 | HD64461_PCCSCR_VCC1, HD64461_PCC1GCR);
93#endif
94
95 sh_dac_output(0, DAC_SPEAKER_VOLUME);
96 sh_dac_disable(DAC_SPEAKER_VOLUME);
97 v8 = ctrl_inb(DACR);
98 v8 &= ~DACR_DAE;
99 ctrl_outb(v8,DACR);
100
101 v8 = ctrl_inb(SCPDR);
102 v8 |= SCPDR_TS_SCAN_X | SCPDR_TS_SCAN_Y;
103 v8 &= ~SCPDR_TS_SCAN_ENABLE;
104 ctrl_outb(v8, SCPDR);
105
106 v = ctrl_inw(SCPCR);
107 v &= ~SCPCR_TS_MASK;
108 v |= SCPCR_TS_ENABLE;
109 ctrl_outw(v, SCPCR);
110}
111device_initcall(hp6xx_devices_setup);
112
113static struct sh_machine_vector mv_hp6xx __initmv = {
114 .mv_name = "hp6xx",
115 .mv_setup = hp6xx_setup,
116 /* IRQ's : CPU(64) + CCHIP(16) + FREE_TO_USE(6) */
117 .mv_nr_irqs = HD64461_IRQBASE + HD64461_IRQ_NUM + 6,
118 .mv_irq_demux = hd64461_irq_demux,
119 /* Enable IRQ0 -> IRQ3 in IRQ_MODE */
120 .mv_init_irq = hp6xx_init_irq,
121};
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-25 10:14:28 -0500