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qemu/hw/spitz.c
Lars Munch e03c22a98c arm: fix arm kernel boot for non zero start addr 
Booting an arm kernel has been broken a while when booting from non zero start
address. This is due to the order of events: board init loads the kernel and
sets register 15 to the start address and then qemu_system_reset reset the cpu
making register 15 zero again.

This patch fixes the usage of the register 15 start address trick in
combination with arm_load_kernel.

Signed-off-by: Lars Munch <lars@segv.dk>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-05-31 19:40:41 +02:00

1095 lines
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/*
* PXA270-based Clamshell PDA platforms.
*
* Copyright (c) 2006 Openedhand Ltd.
* Written by Andrzej Zaborowski <balrog@zabor.org>
*
* This code is licensed under the GNU GPL v2.
*/
#include "hw.h"
#include "pxa.h"
#include "arm-misc.h"
#include "sysemu.h"
#include "pcmcia.h"
#include "i2c.h"
#include "ssi.h"
#include "flash.h"
#include "qemu-timer.h"
#include "devices.h"
#include "sharpsl.h"
#include "console.h"
#include "block.h"
#include "audio/audio.h"
#include "boards.h"
#undef REG_FMT
#define REG_FMT "0x%02lx"
/* Spitz Flash */
#define FLASH_BASE 0x0c000000
#define FLASH_ECCLPLB 0x00 /* Line parity 7 - 0 bit */
#define FLASH_ECCLPUB 0x04 /* Line parity 15 - 8 bit */
#define FLASH_ECCCP 0x08 /* Column parity 5 - 0 bit */
#define FLASH_ECCCNTR 0x0c /* ECC byte counter */
#define FLASH_ECCCLRR 0x10 /* Clear ECC */
#define FLASH_FLASHIO 0x14 /* Flash I/O */
#define FLASH_FLASHCTL 0x18 /* Flash Control */
#define FLASHCTL_CE0 (1 << 0)
#define FLASHCTL_CLE (1 << 1)
#define FLASHCTL_ALE (1 << 2)
#define FLASHCTL_WP (1 << 3)
#define FLASHCTL_CE1 (1 << 4)
#define FLASHCTL_RYBY (1 << 5)
#define FLASHCTL_NCE (FLASHCTL_CE0 | FLASHCTL_CE1)
typedef struct {
NANDFlashState *nand;
uint8_t ctl;
ECCState ecc;
} SLNANDState;
static uint32_t sl_readb(void *opaque, target_phys_addr_t addr)
{
SLNANDState *s = (SLNANDState *) opaque;
int ryby;
switch (addr) {
#define BSHR(byte, from, to) ((s->ecc.lp[byte] >> (from - to)) & (1 << to))
case FLASH_ECCLPLB:
return BSHR(0, 4, 0) | BSHR(0, 5, 2) | BSHR(0, 6, 4) | BSHR(0, 7, 6) |
BSHR(1, 4, 1) | BSHR(1, 5, 3) | BSHR(1, 6, 5) | BSHR(1, 7, 7);
#define BSHL(byte, from, to) ((s->ecc.lp[byte] << (to - from)) & (1 << to))
case FLASH_ECCLPUB:
return BSHL(0, 0, 0) | BSHL(0, 1, 2) | BSHL(0, 2, 4) | BSHL(0, 3, 6) |
BSHL(1, 0, 1) | BSHL(1, 1, 3) | BSHL(1, 2, 5) | BSHL(1, 3, 7);
case FLASH_ECCCP:
return s->ecc.cp;
case FLASH_ECCCNTR:
return s->ecc.count & 0xff;
case FLASH_FLASHCTL:
nand_getpins(s->nand, &ryby);
if (ryby)
return s->ctl | FLASHCTL_RYBY;
else
return s->ctl;
case FLASH_FLASHIO:
return ecc_digest(&s->ecc, nand_getio(s->nand));
default:
zaurus_printf("Bad register offset " REG_FMT "\n", (unsigned long)addr);
}
return 0;
}
static uint32_t sl_readl(void *opaque, target_phys_addr_t addr)
{
SLNANDState *s = (SLNANDState *) opaque;
if (addr == FLASH_FLASHIO)
return ecc_digest(&s->ecc, nand_getio(s->nand)) |
(ecc_digest(&s->ecc, nand_getio(s->nand)) << 16);
return sl_readb(opaque, addr);
}
static void sl_writeb(void *opaque, target_phys_addr_t addr,
uint32_t value)
{
SLNANDState *s = (SLNANDState *) opaque;
switch (addr) {
case FLASH_ECCCLRR:
/* Value is ignored. */
ecc_reset(&s->ecc);
break;
case FLASH_FLASHCTL:
s->ctl = value & 0xff & ~FLASHCTL_RYBY;
nand_setpins(s->nand,
s->ctl & FLASHCTL_CLE,
s->ctl & FLASHCTL_ALE,
s->ctl & FLASHCTL_NCE,
s->ctl & FLASHCTL_WP,
0);
break;
case FLASH_FLASHIO:
nand_setio(s->nand, ecc_digest(&s->ecc, value & 0xff));
break;
default:
zaurus_printf("Bad register offset " REG_FMT "\n", (unsigned long)addr);
}
}
static void sl_save(QEMUFile *f, void *opaque)
{
SLNANDState *s = (SLNANDState *) opaque;
qemu_put_8s(f, &s->ctl);
ecc_put(f, &s->ecc);
}
static int sl_load(QEMUFile *f, void *opaque, int version_id)
{
SLNANDState *s = (SLNANDState *) opaque;
qemu_get_8s(f, &s->ctl);
ecc_get(f, &s->ecc);
return 0;
}
enum {
FLASH_128M,
FLASH_1024M,
};
static void sl_flash_register(PXA2xxState *cpu, int size)
{
int iomemtype;
SLNANDState *s;
CPUReadMemoryFunc * const sl_readfn[] = {
sl_readb,
sl_readb,
sl_readl,
};
CPUWriteMemoryFunc * const sl_writefn[] = {
sl_writeb,
sl_writeb,
sl_writeb,
};
s = (SLNANDState *) qemu_mallocz(sizeof(SLNANDState));
s->ctl = 0;
if (size == FLASH_128M)
s->nand = nand_init(NAND_MFR_SAMSUNG, 0x73);
else if (size == FLASH_1024M)
s->nand = nand_init(NAND_MFR_SAMSUNG, 0xf1);
iomemtype = cpu_register_io_memory(sl_readfn,
sl_writefn, s);
cpu_register_physical_memory(FLASH_BASE, 0x40, iomemtype);
register_savevm("sl_flash", 0, 0, sl_save, sl_load, s);
}
/* Spitz Keyboard */
#define SPITZ_KEY_STROBE_NUM 11
#define SPITZ_KEY_SENSE_NUM 7
static const int spitz_gpio_key_sense[SPITZ_KEY_SENSE_NUM] = {
12, 17, 91, 34, 36, 38, 39
};
static const int spitz_gpio_key_strobe[SPITZ_KEY_STROBE_NUM] = {
88, 23, 24, 25, 26, 27, 52, 103, 107, 108, 114
};
/* Eighth additional row maps the special keys */
static int spitz_keymap[SPITZ_KEY_SENSE_NUM + 1][SPITZ_KEY_STROBE_NUM] = {
{ 0x1d, 0x02, 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0e, 0x3f, 0x40 },
{ -1 , 0x03, 0x05, 0x13, 0x15, 0x09, 0x17, 0x18, 0x19, 0x41, 0x42 },
{ 0x0f, 0x10, 0x12, 0x14, 0x22, 0x16, 0x24, 0x25, -1 , -1 , -1 },
{ 0x3c, 0x11, 0x1f, 0x21, 0x2f, 0x23, 0x32, 0x26, -1 , 0x36, -1 },
{ 0x3b, 0x1e, 0x20, 0x2e, 0x30, 0x31, 0x34, -1 , 0x1c, 0x2a, -1 },
{ 0x44, 0x2c, 0x2d, 0x0c, 0x39, 0x33, -1 , 0x48, -1 , -1 , 0x38 },
{ 0x37, 0x3d, -1 , 0x45, 0x57, 0x58, 0x4b, 0x50, 0x4d, -1 , -1 },
{ 0x52, 0x43, 0x01, 0x47, 0x49, -1 , -1 , -1 , -1 , -1 , -1 },
};
#define SPITZ_GPIO_AK_INT 13 /* Remote control */
#define SPITZ_GPIO_SYNC 16 /* Sync button */
#define SPITZ_GPIO_ON_KEY 95 /* Power button */
#define SPITZ_GPIO_SWA 97 /* Lid */
#define SPITZ_GPIO_SWB 96 /* Tablet mode */
/* The special buttons are mapped to unused keys */
static const int spitz_gpiomap[5] = {
SPITZ_GPIO_AK_INT, SPITZ_GPIO_SYNC, SPITZ_GPIO_ON_KEY,
SPITZ_GPIO_SWA, SPITZ_GPIO_SWB,
};
static int spitz_gpio_invert[5] = { 0, 0, 0, 0, 0, };
typedef struct {
qemu_irq sense[SPITZ_KEY_SENSE_NUM];
qemu_irq *strobe;
qemu_irq gpiomap[5];
int keymap[0x80];
uint16_t keyrow[SPITZ_KEY_SENSE_NUM];
uint16_t strobe_state;
uint16_t sense_state;
uint16_t pre_map[0x100];
uint16_t modifiers;
uint16_t imodifiers;
uint8_t fifo[16];
int fifopos, fifolen;
QEMUTimer *kbdtimer;
} SpitzKeyboardState;
static void spitz_keyboard_sense_update(SpitzKeyboardState *s)
{
int i;
uint16_t strobe, sense = 0;
for (i = 0; i < SPITZ_KEY_SENSE_NUM; i ++) {
strobe = s->keyrow[i] & s->strobe_state;
if (strobe) {
sense |= 1 << i;
if (!(s->sense_state & (1 << i)))
qemu_irq_raise(s->sense[i]);
} else if (s->sense_state & (1 << i))
qemu_irq_lower(s->sense[i]);
}
s->sense_state = sense;
}
static void spitz_keyboard_strobe(void *opaque, int line, int level)
{
SpitzKeyboardState *s = (SpitzKeyboardState *) opaque;
if (level)
s->strobe_state |= 1 << line;
else
s->strobe_state &= ~(1 << line);
spitz_keyboard_sense_update(s);
}
static void spitz_keyboard_keydown(SpitzKeyboardState *s, int keycode)
{
int spitz_keycode = s->keymap[keycode & 0x7f];
if (spitz_keycode == -1)
return;
/* Handle the additional keys */
if ((spitz_keycode >> 4) == SPITZ_KEY_SENSE_NUM) {
qemu_set_irq(s->gpiomap[spitz_keycode & 0xf], (keycode < 0x80) ^
spitz_gpio_invert[spitz_keycode & 0xf]);
return;
}
if (keycode & 0x80)
s->keyrow[spitz_keycode >> 4] &= ~(1 << (spitz_keycode & 0xf));
else
s->keyrow[spitz_keycode >> 4] |= 1 << (spitz_keycode & 0xf);
spitz_keyboard_sense_update(s);
}
#define SHIFT (1 << 7)
#define CTRL (1 << 8)
#define FN (1 << 9)
#define QUEUE_KEY(c) s->fifo[(s->fifopos + s->fifolen ++) & 0xf] = c
static void spitz_keyboard_handler(SpitzKeyboardState *s, int keycode)
{
uint16_t code;
int mapcode;
switch (keycode) {
case 0x2a: /* Left Shift */
s->modifiers |= 1;
break;
case 0xaa:
s->modifiers &= ~1;
break;
case 0x36: /* Right Shift */
s->modifiers |= 2;
break;
case 0xb6:
s->modifiers &= ~2;
break;
case 0x1d: /* Control */
s->modifiers |= 4;
break;
case 0x9d:
s->modifiers &= ~4;
break;
case 0x38: /* Alt */
s->modifiers |= 8;
break;
case 0xb8:
s->modifiers &= ~8;
break;
}
code = s->pre_map[mapcode = ((s->modifiers & 3) ?
(keycode | SHIFT) :
(keycode & ~SHIFT))];
if (code != mapcode) {
#if 0
if ((code & SHIFT) && !(s->modifiers & 1))
QUEUE_KEY(0x2a | (keycode & 0x80));
if ((code & CTRL ) && !(s->modifiers & 4))
QUEUE_KEY(0x1d | (keycode & 0x80));
if ((code & FN ) && !(s->modifiers & 8))
QUEUE_KEY(0x38 | (keycode & 0x80));
if ((code & FN ) && (s->modifiers & 1))
QUEUE_KEY(0x2a | (~keycode & 0x80));
if ((code & FN ) && (s->modifiers & 2))
QUEUE_KEY(0x36 | (~keycode & 0x80));
#else
if (keycode & 0x80) {
if ((s->imodifiers & 1 ) && !(s->modifiers & 1))
QUEUE_KEY(0x2a | 0x80);
if ((s->imodifiers & 4 ) && !(s->modifiers & 4))
QUEUE_KEY(0x1d | 0x80);
if ((s->imodifiers & 8 ) && !(s->modifiers & 8))
QUEUE_KEY(0x38 | 0x80);
if ((s->imodifiers & 0x10) && (s->modifiers & 1))
QUEUE_KEY(0x2a);
if ((s->imodifiers & 0x20) && (s->modifiers & 2))
QUEUE_KEY(0x36);
s->imodifiers = 0;
} else {
if ((code & SHIFT) && !((s->modifiers | s->imodifiers) & 1)) {
QUEUE_KEY(0x2a);
s->imodifiers |= 1;
}
if ((code & CTRL ) && !((s->modifiers | s->imodifiers) & 4)) {
QUEUE_KEY(0x1d);
s->imodifiers |= 4;
}
if ((code & FN ) && !((s->modifiers | s->imodifiers) & 8)) {
QUEUE_KEY(0x38);
s->imodifiers |= 8;
}
if ((code & FN ) && (s->modifiers & 1) &&
!(s->imodifiers & 0x10)) {
QUEUE_KEY(0x2a | 0x80);
s->imodifiers |= 0x10;
}
if ((code & FN ) && (s->modifiers & 2) &&
!(s->imodifiers & 0x20)) {
QUEUE_KEY(0x36 | 0x80);
s->imodifiers |= 0x20;
}
}
#endif
}
QUEUE_KEY((code & 0x7f) | (keycode & 0x80));
}
static void spitz_keyboard_tick(void *opaque)
{
SpitzKeyboardState *s = (SpitzKeyboardState *) opaque;
if (s->fifolen) {
spitz_keyboard_keydown(s, s->fifo[s->fifopos ++]);
s->fifolen --;
if (s->fifopos >= 16)
s->fifopos = 0;
}
qemu_mod_timer(s->kbdtimer, qemu_get_clock(vm_clock) +
get_ticks_per_sec() / 32);
}
static void spitz_keyboard_pre_map(SpitzKeyboardState *s)
{
int i;
for (i = 0; i < 0x100; i ++)
s->pre_map[i] = i;
s->pre_map[0x02 | SHIFT ] = 0x02 | SHIFT; /* exclam */
s->pre_map[0x28 | SHIFT ] = 0x03 | SHIFT; /* quotedbl */
s->pre_map[0x04 | SHIFT ] = 0x04 | SHIFT; /* numbersign */
s->pre_map[0x05 | SHIFT ] = 0x05 | SHIFT; /* dollar */
s->pre_map[0x06 | SHIFT ] = 0x06 | SHIFT; /* percent */
s->pre_map[0x08 | SHIFT ] = 0x07 | SHIFT; /* ampersand */
s->pre_map[0x28 ] = 0x08 | SHIFT; /* apostrophe */
s->pre_map[0x0a | SHIFT ] = 0x09 | SHIFT; /* parenleft */
s->pre_map[0x0b | SHIFT ] = 0x0a | SHIFT; /* parenright */
s->pre_map[0x29 | SHIFT ] = 0x0b | SHIFT; /* asciitilde */
s->pre_map[0x03 | SHIFT ] = 0x0c | SHIFT; /* at */
s->pre_map[0xd3 ] = 0x0e | FN; /* Delete */
s->pre_map[0x3a ] = 0x0f | FN; /* Caps_Lock */
s->pre_map[0x07 | SHIFT ] = 0x11 | FN; /* asciicircum */
s->pre_map[0x0d ] = 0x12 | FN; /* equal */
s->pre_map[0x0d | SHIFT ] = 0x13 | FN; /* plus */
s->pre_map[0x1a ] = 0x14 | FN; /* bracketleft */
s->pre_map[0x1b ] = 0x15 | FN; /* bracketright */
s->pre_map[0x1a | SHIFT ] = 0x16 | FN; /* braceleft */
s->pre_map[0x1b | SHIFT ] = 0x17 | FN; /* braceright */
s->pre_map[0x27 ] = 0x22 | FN; /* semicolon */
s->pre_map[0x27 | SHIFT ] = 0x23 | FN; /* colon */
s->pre_map[0x09 | SHIFT ] = 0x24 | FN; /* asterisk */
s->pre_map[0x2b ] = 0x25 | FN; /* backslash */
s->pre_map[0x2b | SHIFT ] = 0x26 | FN; /* bar */
s->pre_map[0x0c | SHIFT ] = 0x30 | FN; /* underscore */
s->pre_map[0x33 | SHIFT ] = 0x33 | FN; /* less */
s->pre_map[0x35 ] = 0x33 | SHIFT; /* slash */
s->pre_map[0x34 | SHIFT ] = 0x34 | FN; /* greater */
s->pre_map[0x35 | SHIFT ] = 0x34 | SHIFT; /* question */
s->pre_map[0x49 ] = 0x48 | FN; /* Page_Up */
s->pre_map[0x51 ] = 0x50 | FN; /* Page_Down */
s->modifiers = 0;
s->imodifiers = 0;
s->fifopos = 0;
s->fifolen = 0;
s->kbdtimer = qemu_new_timer(vm_clock, spitz_keyboard_tick, s);
spitz_keyboard_tick(s);
}
#undef SHIFT
#undef CTRL
#undef FN
static void spitz_keyboard_save(QEMUFile *f, void *opaque)
{
SpitzKeyboardState *s = (SpitzKeyboardState *) opaque;
int i;
qemu_put_be16s(f, &s->sense_state);
qemu_put_be16s(f, &s->strobe_state);
for (i = 0; i < 5; i ++)
qemu_put_byte(f, spitz_gpio_invert[i]);
}
static int spitz_keyboard_load(QEMUFile *f, void *opaque, int version_id)
{
SpitzKeyboardState *s = (SpitzKeyboardState *) opaque;
int i;
qemu_get_be16s(f, &s->sense_state);
qemu_get_be16s(f, &s->strobe_state);
for (i = 0; i < 5; i ++)
spitz_gpio_invert[i] = qemu_get_byte(f);
/* Release all pressed keys */
memset(s->keyrow, 0, sizeof(s->keyrow));
spitz_keyboard_sense_update(s);
s->modifiers = 0;
s->imodifiers = 0;
s->fifopos = 0;
s->fifolen = 0;
return 0;
}
static void spitz_keyboard_register(PXA2xxState *cpu)
{
int i, j;
SpitzKeyboardState *s;
s = (SpitzKeyboardState *)
qemu_mallocz(sizeof(SpitzKeyboardState));
memset(s, 0, sizeof(SpitzKeyboardState));
for (i = 0; i < 0x80; i ++)
s->keymap[i] = -1;
for (i = 0; i < SPITZ_KEY_SENSE_NUM + 1; i ++)
for (j = 0; j < SPITZ_KEY_STROBE_NUM; j ++)
if (spitz_keymap[i][j] != -1)
s->keymap[spitz_keymap[i][j]] = (i << 4) | j;
for (i = 0; i < SPITZ_KEY_SENSE_NUM; i ++)
s->sense[i] = pxa2xx_gpio_in_get(cpu->gpio)[spitz_gpio_key_sense[i]];
for (i = 0; i < 5; i ++)
s->gpiomap[i] = pxa2xx_gpio_in_get(cpu->gpio)[spitz_gpiomap[i]];
s->strobe = qemu_allocate_irqs(spitz_keyboard_strobe, s,
SPITZ_KEY_STROBE_NUM);
for (i = 0; i < SPITZ_KEY_STROBE_NUM; i ++)
pxa2xx_gpio_out_set(cpu->gpio, spitz_gpio_key_strobe[i], s->strobe[i]);
spitz_keyboard_pre_map(s);
qemu_add_kbd_event_handler((QEMUPutKBDEvent *) spitz_keyboard_handler, s);
register_savevm("spitz_keyboard", 0, 0,
spitz_keyboard_save, spitz_keyboard_load, s);
}
/* LCD backlight controller */
#define LCDTG_RESCTL 0x00
#define LCDTG_PHACTRL 0x01
#define LCDTG_DUTYCTRL 0x02
#define LCDTG_POWERREG0 0x03
#define LCDTG_POWERREG1 0x04
#define LCDTG_GPOR3 0x05
#define LCDTG_PICTRL 0x06
#define LCDTG_POLCTRL 0x07
typedef struct {
SSISlave ssidev;
int bl_intensity;
int bl_power;
} SpitzLCDTG;
static void spitz_bl_update(SpitzLCDTG *s)
{
if (s->bl_power && s->bl_intensity)
zaurus_printf("LCD Backlight now at %i/63\n", s->bl_intensity);
else
zaurus_printf("LCD Backlight now off\n");
}
/* FIXME: Implement GPIO properly and remove this hack. */
static SpitzLCDTG *spitz_lcdtg;
static inline void spitz_bl_bit5(void *opaque, int line, int level)
{
SpitzLCDTG *s = spitz_lcdtg;
int prev = s->bl_intensity;
if (level)
s->bl_intensity &= ~0x20;
else
s->bl_intensity |= 0x20;
if (s->bl_power && prev != s->bl_intensity)
spitz_bl_update(s);
}
static inline void spitz_bl_power(void *opaque, int line, int level)
{
SpitzLCDTG *s = spitz_lcdtg;
s->bl_power = !!level;
spitz_bl_update(s);
}
static uint32_t spitz_lcdtg_transfer(SSISlave *dev, uint32_t value)
{
SpitzLCDTG *s = FROM_SSI_SLAVE(SpitzLCDTG, dev);
int addr;
addr = value >> 5;
value &= 0x1f;
switch (addr) {
case LCDTG_RESCTL:
if (value)
zaurus_printf("LCD in QVGA mode\n");
else
zaurus_printf("LCD in VGA mode\n");
break;
case LCDTG_DUTYCTRL:
s->bl_intensity &= ~0x1f;
s->bl_intensity |= value;
if (s->bl_power)
spitz_bl_update(s);
break;
case LCDTG_POWERREG0:
/* Set common voltage to M62332FP */
break;
}
return 0;
}
static void spitz_lcdtg_save(QEMUFile *f, void *opaque)
{
SpitzLCDTG *s = (SpitzLCDTG *)opaque;
qemu_put_be32(f, s->bl_intensity);
qemu_put_be32(f, s->bl_power);
}
static int spitz_lcdtg_load(QEMUFile *f, void *opaque, int version_id)
{
SpitzLCDTG *s = (SpitzLCDTG *)opaque;
s->bl_intensity = qemu_get_be32(f);
s->bl_power = qemu_get_be32(f);
return 0;
}
static int spitz_lcdtg_init(SSISlave *dev)
{
SpitzLCDTG *s = FROM_SSI_SLAVE(SpitzLCDTG, dev);
spitz_lcdtg = s;
s->bl_power = 0;
s->bl_intensity = 0x20;
register_savevm("spitz-lcdtg", -1, 1,
spitz_lcdtg_save, spitz_lcdtg_load, s);
return 0;
}
/* SSP devices */
#define CORGI_SSP_PORT 2
#define SPITZ_GPIO_LCDCON_CS 53
#define SPITZ_GPIO_ADS7846_CS 14
#define SPITZ_GPIO_MAX1111_CS 20
#define SPITZ_GPIO_TP_INT 11
static DeviceState *max1111;
/* "Demux" the signal based on current chipselect */
typedef struct {
SSISlave ssidev;
SSIBus *bus[3];
int enable[3];
} CorgiSSPState;
static uint32_t corgi_ssp_transfer(SSISlave *dev, uint32_t value)
{
CorgiSSPState *s = FROM_SSI_SLAVE(CorgiSSPState, dev);
int i;
for (i = 0; i < 3; i++) {
if (s->enable[i]) {
return ssi_transfer(s->bus[i], value);
}
}
return 0;
}
static void corgi_ssp_gpio_cs(void *opaque, int line, int level)
{
CorgiSSPState *s = (CorgiSSPState *)opaque;
assert(line >= 0 && line < 3);
s->enable[line] = !level;
}
#define MAX1111_BATT_VOLT 1
#define MAX1111_BATT_TEMP 2
#define MAX1111_ACIN_VOLT 3
#define SPITZ_BATTERY_TEMP 0xe0 /* About 2.9V */
#define SPITZ_BATTERY_VOLT 0xd0 /* About 4.0V */
#define SPITZ_CHARGEON_ACIN 0x80 /* About 5.0V */
static void spitz_adc_temp_on(void *opaque, int line, int level)
{
if (!max1111)
return;
if (level)
max111x_set_input(max1111, MAX1111_BATT_TEMP, SPITZ_BATTERY_TEMP);
else
max111x_set_input(max1111, MAX1111_BATT_TEMP, 0);
}
static void spitz_ssp_save(QEMUFile *f, void *opaque)
{
CorgiSSPState *s = (CorgiSSPState *)opaque;
int i;
for (i = 0; i < 3; i++) {
qemu_put_be32(f, s->enable[i]);
}
}
static int spitz_ssp_load(QEMUFile *f, void *opaque, int version_id)
{
CorgiSSPState *s = (CorgiSSPState *)opaque;
int i;
if (version_id != 1) {
return -EINVAL;
}
for (i = 0; i < 3; i++) {
s->enable[i] = qemu_get_be32(f);
}
return 0;
}
static int corgi_ssp_init(SSISlave *dev)
{
CorgiSSPState *s = FROM_SSI_SLAVE(CorgiSSPState, dev);
qdev_init_gpio_in(&dev->qdev, corgi_ssp_gpio_cs, 3);
s->bus[0] = ssi_create_bus(&dev->qdev, "ssi0");
s->bus[1] = ssi_create_bus(&dev->qdev, "ssi1");
s->bus[2] = ssi_create_bus(&dev->qdev, "ssi2");
register_savevm("spitz_ssp", -1, 1, spitz_ssp_save, spitz_ssp_load, s);
return 0;
}
static void spitz_ssp_attach(PXA2xxState *cpu)
{
DeviceState *mux;
DeviceState *dev;
void *bus;
mux = ssi_create_slave(cpu->ssp[CORGI_SSP_PORT - 1], "corgi-ssp");
bus = qdev_get_child_bus(mux, "ssi0");
ssi_create_slave(bus, "spitz-lcdtg");
bus = qdev_get_child_bus(mux, "ssi1");
dev = ssi_create_slave(bus, "ads7846");
qdev_connect_gpio_out(dev, 0,
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_TP_INT]);
bus = qdev_get_child_bus(mux, "ssi2");
max1111 = ssi_create_slave(bus, "max1111");
max111x_set_input(max1111, MAX1111_BATT_VOLT, SPITZ_BATTERY_VOLT);
max111x_set_input(max1111, MAX1111_BATT_TEMP, 0);
max111x_set_input(max1111, MAX1111_ACIN_VOLT, SPITZ_CHARGEON_ACIN);
pxa2xx_gpio_out_set(cpu->gpio, SPITZ_GPIO_LCDCON_CS,
qdev_get_gpio_in(mux, 0));
pxa2xx_gpio_out_set(cpu->gpio, SPITZ_GPIO_ADS7846_CS,
qdev_get_gpio_in(mux, 1));
pxa2xx_gpio_out_set(cpu->gpio, SPITZ_GPIO_MAX1111_CS,
qdev_get_gpio_in(mux, 2));
}
/* CF Microdrive */
static void spitz_microdrive_attach(PXA2xxState *cpu, int slot)
{
PCMCIACardState *md;
BlockDriverState *bs;
DriveInfo *dinfo;
dinfo = drive_get(IF_IDE, 0, 0);
if (!dinfo)
return;
bs = dinfo->bdrv;
if (bdrv_is_inserted(bs) && !bdrv_is_removable(bs)) {
md = dscm1xxxx_init(dinfo);
pxa2xx_pcmcia_attach(cpu->pcmcia[slot], md);
}
}
/* Wm8750 and Max7310 on I2C */
#define AKITA_MAX_ADDR 0x18
#define SPITZ_WM_ADDRL 0x1b
#define SPITZ_WM_ADDRH 0x1a
#define SPITZ_GPIO_WM 5
#ifdef HAS_AUDIO
static void spitz_wm8750_addr(void *opaque, int line, int level)
{
i2c_slave *wm = (i2c_slave *) opaque;
if (level)
i2c_set_slave_address(wm, SPITZ_WM_ADDRH);
else
i2c_set_slave_address(wm, SPITZ_WM_ADDRL);
}
#endif
static void spitz_i2c_setup(PXA2xxState *cpu)
{
/* Attach the CPU on one end of our I2C bus. */
i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
#ifdef HAS_AUDIO
DeviceState *wm;
/* Attach a WM8750 to the bus */
wm = i2c_create_slave(bus, "wm8750", 0);
spitz_wm8750_addr(wm, 0, 0);
pxa2xx_gpio_out_set(cpu->gpio, SPITZ_GPIO_WM,
qemu_allocate_irqs(spitz_wm8750_addr, wm, 1)[0]);
/* .. and to the sound interface. */
cpu->i2s->opaque = wm;
cpu->i2s->codec_out = wm8750_dac_dat;
cpu->i2s->codec_in = wm8750_adc_dat;
wm8750_data_req_set(wm, cpu->i2s->data_req, cpu->i2s);
#endif
}
static void spitz_akita_i2c_setup(PXA2xxState *cpu)
{
/* Attach a Max7310 to Akita I2C bus. */
i2c_create_slave(pxa2xx_i2c_bus(cpu->i2c[0]), "max7310",
AKITA_MAX_ADDR);
}
/* Other peripherals */
static void spitz_out_switch(void *opaque, int line, int level)
{
switch (line) {
case 0:
zaurus_printf("Charging %s.\n", level ? "off" : "on");
break;
case 1:
zaurus_printf("Discharging %s.\n", level ? "on" : "off");
break;
case 2:
zaurus_printf("Green LED %s.\n", level ? "on" : "off");
break;
case 3:
zaurus_printf("Orange LED %s.\n", level ? "on" : "off");
break;
case 4:
spitz_bl_bit5(opaque, line, level);
break;
case 5:
spitz_bl_power(opaque, line, level);
break;
case 6:
spitz_adc_temp_on(opaque, line, level);
break;
}
}
#define SPITZ_SCP_LED_GREEN 1
#define SPITZ_SCP_JK_B 2
#define SPITZ_SCP_CHRG_ON 3
#define SPITZ_SCP_MUTE_L 4
#define SPITZ_SCP_MUTE_R 5
#define SPITZ_SCP_CF_POWER 6
#define SPITZ_SCP_LED_ORANGE 7
#define SPITZ_SCP_JK_A 8
#define SPITZ_SCP_ADC_TEMP_ON 9
#define SPITZ_SCP2_IR_ON 1
#define SPITZ_SCP2_AKIN_PULLUP 2
#define SPITZ_SCP2_BACKLIGHT_CONT 7
#define SPITZ_SCP2_BACKLIGHT_ON 8
#define SPITZ_SCP2_MIC_BIAS 9
static void spitz_scoop_gpio_setup(PXA2xxState *cpu,
ScoopInfo *scp0, ScoopInfo *scp1)
{
qemu_irq *outsignals = qemu_allocate_irqs(spitz_out_switch, cpu, 8);
scoop_gpio_out_set(scp0, SPITZ_SCP_CHRG_ON, outsignals[0]);
scoop_gpio_out_set(scp0, SPITZ_SCP_JK_B, outsignals[1]);
scoop_gpio_out_set(scp0, SPITZ_SCP_LED_GREEN, outsignals[2]);
scoop_gpio_out_set(scp0, SPITZ_SCP_LED_ORANGE, outsignals[3]);
if (scp1) {
scoop_gpio_out_set(scp1, SPITZ_SCP2_BACKLIGHT_CONT, outsignals[4]);
scoop_gpio_out_set(scp1, SPITZ_SCP2_BACKLIGHT_ON, outsignals[5]);
}
scoop_gpio_out_set(scp0, SPITZ_SCP_ADC_TEMP_ON, outsignals[6]);
}
#define SPITZ_GPIO_HSYNC 22
#define SPITZ_GPIO_SD_DETECT 9
#define SPITZ_GPIO_SD_WP 81
#define SPITZ_GPIO_ON_RESET 89
#define SPITZ_GPIO_BAT_COVER 90
#define SPITZ_GPIO_CF1_IRQ 105
#define SPITZ_GPIO_CF1_CD 94
#define SPITZ_GPIO_CF2_IRQ 106
#define SPITZ_GPIO_CF2_CD 93
static int spitz_hsync;
static void spitz_lcd_hsync_handler(void *opaque, int line, int level)
{
PXA2xxState *cpu = (PXA2xxState *) opaque;
qemu_set_irq(pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_HSYNC], spitz_hsync);
spitz_hsync ^= 1;
}
static void spitz_gpio_setup(PXA2xxState *cpu, int slots)
{
qemu_irq lcd_hsync;
/*
* Bad hack: We toggle the LCD hsync GPIO on every GPIO status
* read to satisfy broken guests that poll-wait for hsync.
* Simulating a real hsync event would be less practical and
* wouldn't guarantee that a guest ever exits the loop.
*/
spitz_hsync = 0;
lcd_hsync = qemu_allocate_irqs(spitz_lcd_hsync_handler, cpu, 1)[0];
pxa2xx_gpio_read_notifier(cpu->gpio, lcd_hsync);
pxa2xx_lcd_vsync_notifier(cpu->lcd, lcd_hsync);
/* MMC/SD host */
pxa2xx_mmci_handlers(cpu->mmc,
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_SD_WP],
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_SD_DETECT]);
/* Battery lock always closed */
qemu_irq_raise(pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_BAT_COVER]);
/* Handle reset */
pxa2xx_gpio_out_set(cpu->gpio, SPITZ_GPIO_ON_RESET, cpu->reset);
/* PCMCIA signals: card's IRQ and Card-Detect */
if (slots >= 1)
pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_CF1_IRQ],
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_CF1_CD]);
if (slots >= 2)
pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_CF2_IRQ],
pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_CF2_CD]);
/* Initialise the screen rotation related signals */
spitz_gpio_invert[3] = 0; /* Always open */
if (graphic_rotate) { /* Tablet mode */
spitz_gpio_invert[4] = 0;
} else { /* Portrait mode */
spitz_gpio_invert[4] = 1;
}
qemu_set_irq(pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_SWA],
spitz_gpio_invert[3]);
qemu_set_irq(pxa2xx_gpio_in_get(cpu->gpio)[SPITZ_GPIO_SWB],
spitz_gpio_invert[4]);
}
/* Board init. */
enum spitz_model_e { spitz, akita, borzoi, terrier };
#define SPITZ_RAM 0x04000000
#define SPITZ_ROM 0x00800000
static struct arm_boot_info spitz_binfo = {
.loader_start = PXA2XX_SDRAM_BASE,
.ram_size = 0x04000000,
};
static void spitz_common_init(ram_addr_t ram_size,
const char *kernel_filename,
const char *kernel_cmdline, const char *initrd_filename,
const char *cpu_model, enum spitz_model_e model, int arm_id)
{
PXA2xxState *cpu;
ScoopInfo *scp0, *scp1 = NULL;
if (!cpu_model)
cpu_model = (model == terrier) ? "pxa270-c5" : "pxa270-c0";
/* Setup CPU & memory */
cpu = pxa270_init(spitz_binfo.ram_size, cpu_model);
sl_flash_register(cpu, (model == spitz) ? FLASH_128M : FLASH_1024M);
cpu_register_physical_memory(0, SPITZ_ROM,
qemu_ram_alloc(SPITZ_ROM) | IO_MEM_ROM);
/* Setup peripherals */
spitz_keyboard_register(cpu);
spitz_ssp_attach(cpu);
scp0 = scoop_init(cpu, 0, 0x10800000);
if (model != akita) {
scp1 = scoop_init(cpu, 1, 0x08800040);
}
spitz_scoop_gpio_setup(cpu, scp0, scp1);
spitz_gpio_setup(cpu, (model == akita) ? 1 : 2);
spitz_i2c_setup(cpu);
if (model == akita)
spitz_akita_i2c_setup(cpu);
if (model == terrier)
/* A 6.0 GB microdrive is permanently sitting in CF slot 1. */
spitz_microdrive_attach(cpu, 1);
else if (model != akita)
/* A 4.0 GB microdrive is permanently sitting in CF slot 0. */
spitz_microdrive_attach(cpu, 0);
spitz_binfo.kernel_filename = kernel_filename;
spitz_binfo.kernel_cmdline = kernel_cmdline;
spitz_binfo.initrd_filename = initrd_filename;
spitz_binfo.board_id = arm_id;
arm_load_kernel(cpu->env, &spitz_binfo);
sl_bootparam_write(SL_PXA_PARAM_BASE);
}
static void spitz_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
spitz_common_init(ram_size, kernel_filename,
kernel_cmdline, initrd_filename, cpu_model, spitz, 0x2c9);
}
static void borzoi_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
spitz_common_init(ram_size, kernel_filename,
kernel_cmdline, initrd_filename, cpu_model, borzoi, 0x33f);
}
static void akita_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
spitz_common_init(ram_size, kernel_filename,
kernel_cmdline, initrd_filename, cpu_model, akita, 0x2e8);
}
static void terrier_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
spitz_common_init(ram_size, kernel_filename,
kernel_cmdline, initrd_filename, cpu_model, terrier, 0x33f);
}
static QEMUMachine akitapda_machine = {
.name = "akita",
.desc = "Akita PDA (PXA270)",
.init = akita_init,
};
static QEMUMachine spitzpda_machine = {
.name = "spitz",
.desc = "Spitz PDA (PXA270)",
.init = spitz_init,
};
static QEMUMachine borzoipda_machine = {
.name = "borzoi",
.desc = "Borzoi PDA (PXA270)",
.init = borzoi_init,
};
static QEMUMachine terrierpda_machine = {
.name = "terrier",
.desc = "Terrier PDA (PXA270)",
.init = terrier_init,
};
static void spitz_machine_init(void)
{
qemu_register_machine(&akitapda_machine);
qemu_register_machine(&spitzpda_machine);
qemu_register_machine(&borzoipda_machine);
qemu_register_machine(&terrierpda_machine);
}
machine_init(spitz_machine_init);
static SSISlaveInfo corgi_ssp_info = {
.qdev.name = "corgi-ssp",
.qdev.size = sizeof(CorgiSSPState),
.init = corgi_ssp_init,
.transfer = corgi_ssp_transfer
};
static SSISlaveInfo spitz_lcdtg_info = {
.qdev.name = "spitz-lcdtg",
.qdev.size = sizeof(SpitzLCDTG),
.init = spitz_lcdtg_init,
.transfer = spitz_lcdtg_transfer
};
static void spitz_register_devices(void)
{
ssi_register_slave(&corgi_ssp_info);
ssi_register_slave(&spitz_lcdtg_info);
}
device_init(spitz_register_devices)
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