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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 12:03:15 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-03-01 15:01:19 +0100
commit530182169e897c0e401b245552a4c58dc6846912 (patch)
tree8c39251d7e89855a89d925359f71639400782cd6 /hw/stellaris.c
parente4c8b28cde12d01ada8fe869567dc5717a2dfcb7 (diff)
hw: move boards and other isolated files to hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/stellaris.c')
-rw-r--r--hw/stellaris.c1401
1 files changed, 0 insertions, 1401 deletions
diff --git a/hw/stellaris.c b/hw/stellaris.c
deleted file mode 100644
index f4ce7945f3..0000000000
--- a/hw/stellaris.c
+++ /dev/null
@@ -1,1401 +0,0 @@
-/*
- * Luminary Micro Stellaris peripherals
- *
- * Copyright (c) 2006 CodeSourcery.
- * Written by Paul Brook
- *
- * This code is licensed under the GPL.
- */
-
-#include "hw/sysbus.h"
-#include "hw/ssi.h"
-#include "hw/arm-misc.h"
-#include "hw/devices.h"
-#include "qemu/timer.h"
-#include "hw/i2c.h"
-#include "net/net.h"
-#include "hw/boards.h"
-#include "exec/address-spaces.h"
-
-#define GPIO_A 0
-#define GPIO_B 1
-#define GPIO_C 2
-#define GPIO_D 3
-#define GPIO_E 4
-#define GPIO_F 5
-#define GPIO_G 6
-
-#define BP_OLED_I2C 0x01
-#define BP_OLED_SSI 0x02
-#define BP_GAMEPAD 0x04
-
-typedef const struct {
- const char *name;
- uint32_t did0;
- uint32_t did1;
- uint32_t dc0;
- uint32_t dc1;
- uint32_t dc2;
- uint32_t dc3;
- uint32_t dc4;
- uint32_t peripherals;
-} stellaris_board_info;
-
-/* General purpose timer module. */
-
-typedef struct gptm_state {
- SysBusDevice busdev;
- MemoryRegion iomem;
- uint32_t config;
- uint32_t mode[2];
- uint32_t control;
- uint32_t state;
- uint32_t mask;
- uint32_t load[2];
- uint32_t match[2];
- uint32_t prescale[2];
- uint32_t match_prescale[2];
- uint32_t rtc;
- int64_t tick[2];
- struct gptm_state *opaque[2];
- QEMUTimer *timer[2];
- /* The timers have an alternate output used to trigger the ADC. */
- qemu_irq trigger;
- qemu_irq irq;
-} gptm_state;
-
-static void gptm_update_irq(gptm_state *s)
-{
- int level;
- level = (s->state & s->mask) != 0;
- qemu_set_irq(s->irq, level);
-}
-
-static void gptm_stop(gptm_state *s, int n)
-{
- qemu_del_timer(s->timer[n]);
-}
-
-static void gptm_reload(gptm_state *s, int n, int reset)
-{
- int64_t tick;
- if (reset)
- tick = qemu_get_clock_ns(vm_clock);
- else
- tick = s->tick[n];
-
- if (s->config == 0) {
- /* 32-bit CountDown. */
- uint32_t count;
- count = s->load[0] | (s->load[1] << 16);
- tick += (int64_t)count * system_clock_scale;
- } else if (s->config == 1) {
- /* 32-bit RTC. 1Hz tick. */
- tick += get_ticks_per_sec();
- } else if (s->mode[n] == 0xa) {
- /* PWM mode. Not implemented. */
- } else {
- hw_error("TODO: 16-bit timer mode 0x%x\n", s->mode[n]);
- }
- s->tick[n] = tick;
- qemu_mod_timer(s->timer[n], tick);
-}
-
-static void gptm_tick(void *opaque)
-{
- gptm_state **p = (gptm_state **)opaque;
- gptm_state *s;
- int n;
-
- s = *p;
- n = p - s->opaque;
- if (s->config == 0) {
- s->state |= 1;
- if ((s->control & 0x20)) {
- /* Output trigger. */
- qemu_irq_pulse(s->trigger);
- }
- if (s->mode[0] & 1) {
- /* One-shot. */
- s->control &= ~1;
- } else {
- /* Periodic. */
- gptm_reload(s, 0, 0);
- }
- } else if (s->config == 1) {
- /* RTC. */
- uint32_t match;
- s->rtc++;
- match = s->match[0] | (s->match[1] << 16);
- if (s->rtc > match)
- s->rtc = 0;
- if (s->rtc == 0) {
- s->state |= 8;
- }
- gptm_reload(s, 0, 0);
- } else if (s->mode[n] == 0xa) {
- /* PWM mode. Not implemented. */
- } else {
- hw_error("TODO: 16-bit timer mode 0x%x\n", s->mode[n]);
- }
- gptm_update_irq(s);
-}
-
-static uint64_t gptm_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- gptm_state *s = (gptm_state *)opaque;
-
- switch (offset) {
- case 0x00: /* CFG */
- return s->config;
- case 0x04: /* TAMR */
- return s->mode[0];
- case 0x08: /* TBMR */
- return s->mode[1];
- case 0x0c: /* CTL */
- return s->control;
- case 0x18: /* IMR */
- return s->mask;
- case 0x1c: /* RIS */
- return s->state;
- case 0x20: /* MIS */
- return s->state & s->mask;
- case 0x24: /* CR */
- return 0;
- case 0x28: /* TAILR */
- return s->load[0] | ((s->config < 4) ? (s->load[1] << 16) : 0);
- case 0x2c: /* TBILR */
- return s->load[1];
- case 0x30: /* TAMARCHR */
- return s->match[0] | ((s->config < 4) ? (s->match[1] << 16) : 0);
- case 0x34: /* TBMATCHR */
- return s->match[1];
- case 0x38: /* TAPR */
- return s->prescale[0];
- case 0x3c: /* TBPR */
- return s->prescale[1];
- case 0x40: /* TAPMR */
- return s->match_prescale[0];
- case 0x44: /* TBPMR */
- return s->match_prescale[1];
- case 0x48: /* TAR */
- if (s->control == 1)
- return s->rtc;
- case 0x4c: /* TBR */
- hw_error("TODO: Timer value read\n");
- default:
- hw_error("gptm_read: Bad offset 0x%x\n", (int)offset);
- return 0;
- }
-}
-
-static void gptm_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- gptm_state *s = (gptm_state *)opaque;
- uint32_t oldval;
-
- /* The timers should be disabled before changing the configuration.
- We take advantage of this and defer everything until the timer
- is enabled. */
- switch (offset) {
- case 0x00: /* CFG */
- s->config = value;
- break;
- case 0x04: /* TAMR */
- s->mode[0] = value;
- break;
- case 0x08: /* TBMR */
- s->mode[1] = value;
- break;
- case 0x0c: /* CTL */
- oldval = s->control;
- s->control = value;
- /* TODO: Implement pause. */
- if ((oldval ^ value) & 1) {
- if (value & 1) {
- gptm_reload(s, 0, 1);
- } else {
- gptm_stop(s, 0);
- }
- }
- if (((oldval ^ value) & 0x100) && s->config >= 4) {
- if (value & 0x100) {
- gptm_reload(s, 1, 1);
- } else {
- gptm_stop(s, 1);
- }
- }
- break;
- case 0x18: /* IMR */
- s->mask = value & 0x77;
- gptm_update_irq(s);
- break;
- case 0x24: /* CR */
- s->state &= ~value;
- break;
- case 0x28: /* TAILR */
- s->load[0] = value & 0xffff;
- if (s->config < 4) {
- s->load[1] = value >> 16;
- }
- break;
- case 0x2c: /* TBILR */
- s->load[1] = value & 0xffff;
- break;
- case 0x30: /* TAMARCHR */
- s->match[0] = value & 0xffff;
- if (s->config < 4) {
- s->match[1] = value >> 16;
- }
- break;
- case 0x34: /* TBMATCHR */
- s->match[1] = value >> 16;
- break;
- case 0x38: /* TAPR */
- s->prescale[0] = value;
- break;
- case 0x3c: /* TBPR */
- s->prescale[1] = value;
- break;
- case 0x40: /* TAPMR */
- s->match_prescale[0] = value;
- break;
- case 0x44: /* TBPMR */
- s->match_prescale[0] = value;
- break;
- default:
- hw_error("gptm_write: Bad offset 0x%x\n", (int)offset);
- }
- gptm_update_irq(s);
-}
-
-static const MemoryRegionOps gptm_ops = {
- .read = gptm_read,
- .write = gptm_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static const VMStateDescription vmstate_stellaris_gptm = {
- .name = "stellaris_gptm",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(config, gptm_state),
- VMSTATE_UINT32_ARRAY(mode, gptm_state, 2),
- VMSTATE_UINT32(control, gptm_state),
- VMSTATE_UINT32(state, gptm_state),
- VMSTATE_UINT32(mask, gptm_state),
- VMSTATE_UNUSED(8),
- VMSTATE_UINT32_ARRAY(load, gptm_state, 2),
- VMSTATE_UINT32_ARRAY(match, gptm_state, 2),
- VMSTATE_UINT32_ARRAY(prescale, gptm_state, 2),
- VMSTATE_UINT32_ARRAY(match_prescale, gptm_state, 2),
- VMSTATE_UINT32(rtc, gptm_state),
- VMSTATE_INT64_ARRAY(tick, gptm_state, 2),
- VMSTATE_TIMER_ARRAY(timer, gptm_state, 2),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int stellaris_gptm_init(SysBusDevice *dev)
-{
- gptm_state *s = FROM_SYSBUS(gptm_state, dev);
-
- sysbus_init_irq(dev, &s->irq);
- qdev_init_gpio_out(&dev->qdev, &s->trigger, 1);
-
- memory_region_init_io(&s->iomem, &gptm_ops, s,
- "gptm", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
-
- s->opaque[0] = s->opaque[1] = s;
- s->timer[0] = qemu_new_timer_ns(vm_clock, gptm_tick, &s->opaque[0]);
- s->timer[1] = qemu_new_timer_ns(vm_clock, gptm_tick, &s->opaque[1]);
- vmstate_register(&dev->qdev, -1, &vmstate_stellaris_gptm, s);
- return 0;
-}
-
-
-/* System controller. */
-
-typedef struct {
- MemoryRegion iomem;
- uint32_t pborctl;
- uint32_t ldopctl;
- uint32_t int_status;
- uint32_t int_mask;
- uint32_t resc;
- uint32_t rcc;
- uint32_t rcc2;
- uint32_t rcgc[3];
- uint32_t scgc[3];
- uint32_t dcgc[3];
- uint32_t clkvclr;
- uint32_t ldoarst;
- uint32_t user0;
- uint32_t user1;
- qemu_irq irq;
- stellaris_board_info *board;
-} ssys_state;
-
-static void ssys_update(ssys_state *s)
-{
- qemu_set_irq(s->irq, (s->int_status & s->int_mask) != 0);
-}
-
-static uint32_t pllcfg_sandstorm[16] = {
- 0x31c0, /* 1 Mhz */
- 0x1ae0, /* 1.8432 Mhz */
- 0x18c0, /* 2 Mhz */
- 0xd573, /* 2.4576 Mhz */
- 0x37a6, /* 3.57954 Mhz */
- 0x1ae2, /* 3.6864 Mhz */
- 0x0c40, /* 4 Mhz */
- 0x98bc, /* 4.906 Mhz */
- 0x935b, /* 4.9152 Mhz */
- 0x09c0, /* 5 Mhz */
- 0x4dee, /* 5.12 Mhz */
- 0x0c41, /* 6 Mhz */
- 0x75db, /* 6.144 Mhz */
- 0x1ae6, /* 7.3728 Mhz */
- 0x0600, /* 8 Mhz */
- 0x585b /* 8.192 Mhz */
-};
-
-static uint32_t pllcfg_fury[16] = {
- 0x3200, /* 1 Mhz */
- 0x1b20, /* 1.8432 Mhz */
- 0x1900, /* 2 Mhz */
- 0xf42b, /* 2.4576 Mhz */
- 0x37e3, /* 3.57954 Mhz */
- 0x1b21, /* 3.6864 Mhz */
- 0x0c80, /* 4 Mhz */
- 0x98ee, /* 4.906 Mhz */
- 0xd5b4, /* 4.9152 Mhz */
- 0x0a00, /* 5 Mhz */
- 0x4e27, /* 5.12 Mhz */
- 0x1902, /* 6 Mhz */
- 0xec1c, /* 6.144 Mhz */
- 0x1b23, /* 7.3728 Mhz */
- 0x0640, /* 8 Mhz */
- 0xb11c /* 8.192 Mhz */
-};
-
-#define DID0_VER_MASK 0x70000000
-#define DID0_VER_0 0x00000000
-#define DID0_VER_1 0x10000000
-
-#define DID0_CLASS_MASK 0x00FF0000
-#define DID0_CLASS_SANDSTORM 0x00000000
-#define DID0_CLASS_FURY 0x00010000
-
-static int ssys_board_class(const ssys_state *s)
-{
- uint32_t did0 = s->board->did0;
- switch (did0 & DID0_VER_MASK) {
- case DID0_VER_0:
- return DID0_CLASS_SANDSTORM;
- case DID0_VER_1:
- switch (did0 & DID0_CLASS_MASK) {
- case DID0_CLASS_SANDSTORM:
- case DID0_CLASS_FURY:
- return did0 & DID0_CLASS_MASK;
- }
- /* for unknown classes, fall through */
- default:
- hw_error("ssys_board_class: Unknown class 0x%08x\n", did0);
- }
-}
-
-static uint64_t ssys_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- ssys_state *s = (ssys_state *)opaque;
-
- switch (offset) {
- case 0x000: /* DID0 */
- return s->board->did0;
- case 0x004: /* DID1 */
- return s->board->did1;
- case 0x008: /* DC0 */
- return s->board->dc0;
- case 0x010: /* DC1 */
- return s->board->dc1;
- case 0x014: /* DC2 */
- return s->board->dc2;
- case 0x018: /* DC3 */
- return s->board->dc3;
- case 0x01c: /* DC4 */
- return s->board->dc4;
- case 0x030: /* PBORCTL */
- return s->pborctl;
- case 0x034: /* LDOPCTL */
- return s->ldopctl;
- case 0x040: /* SRCR0 */
- return 0;
- case 0x044: /* SRCR1 */
- return 0;
- case 0x048: /* SRCR2 */
- return 0;
- case 0x050: /* RIS */
- return s->int_status;
- case 0x054: /* IMC */
- return s->int_mask;
- case 0x058: /* MISC */
- return s->int_status & s->int_mask;
- case 0x05c: /* RESC */
- return s->resc;
- case 0x060: /* RCC */
- return s->rcc;
- case 0x064: /* PLLCFG */
- {
- int xtal;
- xtal = (s->rcc >> 6) & 0xf;
- switch (ssys_board_class(s)) {
- case DID0_CLASS_FURY:
- return pllcfg_fury[xtal];
- case DID0_CLASS_SANDSTORM:
- return pllcfg_sandstorm[xtal];
- default:
- hw_error("ssys_read: Unhandled class for PLLCFG read.\n");
- return 0;
- }
- }
- case 0x070: /* RCC2 */
- return s->rcc2;
- case 0x100: /* RCGC0 */
- return s->rcgc[0];
- case 0x104: /* RCGC1 */
- return s->rcgc[1];
- case 0x108: /* RCGC2 */
- return s->rcgc[2];
- case 0x110: /* SCGC0 */
- return s->scgc[0];
- case 0x114: /* SCGC1 */
- return s->scgc[1];
- case 0x118: /* SCGC2 */
- return s->scgc[2];
- case 0x120: /* DCGC0 */
- return s->dcgc[0];
- case 0x124: /* DCGC1 */
- return s->dcgc[1];
- case 0x128: /* DCGC2 */
- return s->dcgc[2];
- case 0x150: /* CLKVCLR */
- return s->clkvclr;
- case 0x160: /* LDOARST */
- return s->ldoarst;
- case 0x1e0: /* USER0 */
- return s->user0;
- case 0x1e4: /* USER1 */
- return s->user1;
- default:
- hw_error("ssys_read: Bad offset 0x%x\n", (int)offset);
- return 0;
- }
-}
-
-static bool ssys_use_rcc2(ssys_state *s)
-{
- return (s->rcc2 >> 31) & 0x1;
-}
-
-/*
- * Caculate the sys. clock period in ms.
- */
-static void ssys_calculate_system_clock(ssys_state *s)
-{
- if (ssys_use_rcc2(s)) {
- system_clock_scale = 5 * (((s->rcc2 >> 23) & 0x3f) + 1);
- } else {
- system_clock_scale = 5 * (((s->rcc >> 23) & 0xf) + 1);
- }
-}
-
-static void ssys_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- ssys_state *s = (ssys_state *)opaque;
-
- switch (offset) {
- case 0x030: /* PBORCTL */
- s->pborctl = value & 0xffff;
- break;
- case 0x034: /* LDOPCTL */
- s->ldopctl = value & 0x1f;
- break;
- case 0x040: /* SRCR0 */
- case 0x044: /* SRCR1 */
- case 0x048: /* SRCR2 */
- fprintf(stderr, "Peripheral reset not implemented\n");
- break;
- case 0x054: /* IMC */
- s->int_mask = value & 0x7f;
- break;
- case 0x058: /* MISC */
- s->int_status &= ~value;
- break;
- case 0x05c: /* RESC */
- s->resc = value & 0x3f;
- break;
- case 0x060: /* RCC */
- if ((s->rcc & (1 << 13)) != 0 && (value & (1 << 13)) == 0) {
- /* PLL enable. */
- s->int_status |= (1 << 6);
- }
- s->rcc = value;
- ssys_calculate_system_clock(s);
- break;
- case 0x070: /* RCC2 */
- if (ssys_board_class(s) == DID0_CLASS_SANDSTORM) {
- break;
- }
-
- if ((s->rcc2 & (1 << 13)) != 0 && (value & (1 << 13)) == 0) {
- /* PLL enable. */
- s->int_status |= (1 << 6);
- }
- s->rcc2 = value;
- ssys_calculate_system_clock(s);
- break;
- case 0x100: /* RCGC0 */
- s->rcgc[0] = value;
- break;
- case 0x104: /* RCGC1 */
- s->rcgc[1] = value;
- break;
- case 0x108: /* RCGC2 */
- s->rcgc[2] = value;
- break;
- case 0x110: /* SCGC0 */
- s->scgc[0] = value;
- break;
- case 0x114: /* SCGC1 */
- s->scgc[1] = value;
- break;
- case 0x118: /* SCGC2 */
- s->scgc[2] = value;
- break;
- case 0x120: /* DCGC0 */
- s->dcgc[0] = value;
- break;
- case 0x124: /* DCGC1 */
- s->dcgc[1] = value;
- break;
- case 0x128: /* DCGC2 */
- s->dcgc[2] = value;
- break;
- case 0x150: /* CLKVCLR */
- s->clkvclr = value;
- break;
- case 0x160: /* LDOARST */
- s->ldoarst = value;
- break;
- default:
- hw_error("ssys_write: Bad offset 0x%x\n", (int)offset);
- }
- ssys_update(s);
-}
-
-static const MemoryRegionOps ssys_ops = {
- .read = ssys_read,
- .write = ssys_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static void ssys_reset(void *opaque)
-{
- ssys_state *s = (ssys_state *)opaque;
-
- s->pborctl = 0x7ffd;
- s->rcc = 0x078e3ac0;
-
- if (ssys_board_class(s) == DID0_CLASS_SANDSTORM) {
- s->rcc2 = 0;
- } else {
- s->rcc2 = 0x07802810;
- }
- s->rcgc[0] = 1;
- s->scgc[0] = 1;
- s->dcgc[0] = 1;
- ssys_calculate_system_clock(s);
-}
-
-static int stellaris_sys_post_load(void *opaque, int version_id)
-{
- ssys_state *s = opaque;
-
- ssys_calculate_system_clock(s);
-
- return 0;
-}
-
-static const VMStateDescription vmstate_stellaris_sys = {
- .name = "stellaris_sys",
- .version_id = 2,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .post_load = stellaris_sys_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(pborctl, ssys_state),
- VMSTATE_UINT32(ldopctl, ssys_state),
- VMSTATE_UINT32(int_mask, ssys_state),
- VMSTATE_UINT32(int_status, ssys_state),
- VMSTATE_UINT32(resc, ssys_state),
- VMSTATE_UINT32(rcc, ssys_state),
- VMSTATE_UINT32_V(rcc2, ssys_state, 2),
- VMSTATE_UINT32_ARRAY(rcgc, ssys_state, 3),
- VMSTATE_UINT32_ARRAY(scgc, ssys_state, 3),
- VMSTATE_UINT32_ARRAY(dcgc, ssys_state, 3),
- VMSTATE_UINT32(clkvclr, ssys_state),
- VMSTATE_UINT32(ldoarst, ssys_state),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int stellaris_sys_init(uint32_t base, qemu_irq irq,
- stellaris_board_info * board,
- uint8_t *macaddr)
-{
- ssys_state *s;
-
- s = (ssys_state *)g_malloc0(sizeof(ssys_state));
- s->irq = irq;
- s->board = board;
- /* Most devices come preprogrammed with a MAC address in the user data. */
- s->user0 = macaddr[0] | (macaddr[1] << 8) | (macaddr[2] << 16);
- s->user1 = macaddr[3] | (macaddr[4] << 8) | (macaddr[5] << 16);
-
- memory_region_init_io(&s->iomem, &ssys_ops, s, "ssys", 0x00001000);
- memory_region_add_subregion(get_system_memory(), base, &s->iomem);
- ssys_reset(s);
- vmstate_register(NULL, -1, &vmstate_stellaris_sys, s);
- return 0;
-}
-
-
-/* I2C controller. */
-
-typedef struct {
- SysBusDevice busdev;
- i2c_bus *bus;
- qemu_irq irq;
- MemoryRegion iomem;
- uint32_t msa;
- uint32_t mcs;
- uint32_t mdr;
- uint32_t mtpr;
- uint32_t mimr;
- uint32_t mris;
- uint32_t mcr;
-} stellaris_i2c_state;
-
-#define STELLARIS_I2C_MCS_BUSY 0x01
-#define STELLARIS_I2C_MCS_ERROR 0x02
-#define STELLARIS_I2C_MCS_ADRACK 0x04
-#define STELLARIS_I2C_MCS_DATACK 0x08
-#define STELLARIS_I2C_MCS_ARBLST 0x10
-#define STELLARIS_I2C_MCS_IDLE 0x20
-#define STELLARIS_I2C_MCS_BUSBSY 0x40
-
-static uint64_t stellaris_i2c_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
-
- switch (offset) {
- case 0x00: /* MSA */
- return s->msa;
- case 0x04: /* MCS */
- /* We don't emulate timing, so the controller is never busy. */
- return s->mcs | STELLARIS_I2C_MCS_IDLE;
- case 0x08: /* MDR */
- return s->mdr;
- case 0x0c: /* MTPR */
- return s->mtpr;
- case 0x10: /* MIMR */
- return s->mimr;
- case 0x14: /* MRIS */
- return s->mris;
- case 0x18: /* MMIS */
- return s->mris & s->mimr;
- case 0x20: /* MCR */
- return s->mcr;
- default:
- hw_error("strllaris_i2c_read: Bad offset 0x%x\n", (int)offset);
- return 0;
- }
-}
-
-static void stellaris_i2c_update(stellaris_i2c_state *s)
-{
- int level;
-
- level = (s->mris & s->mimr) != 0;
- qemu_set_irq(s->irq, level);
-}
-
-static void stellaris_i2c_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- stellaris_i2c_state *s = (stellaris_i2c_state *)opaque;
-
- switch (offset) {
- case 0x00: /* MSA */
- s->msa = value & 0xff;
- break;
- case 0x04: /* MCS */
- if ((s->mcr & 0x10) == 0) {
- /* Disabled. Do nothing. */
- break;
- }
- /* Grab the bus if this is starting a transfer. */
- if ((value & 2) && (s->mcs & STELLARIS_I2C_MCS_BUSBSY) == 0) {
- if (i2c_start_transfer(s->bus, s->msa >> 1, s->msa & 1)) {
- s->mcs |= STELLARIS_I2C_MCS_ARBLST;
- } else {
- s->mcs &= ~STELLARIS_I2C_MCS_ARBLST;
- s->mcs |= STELLARIS_I2C_MCS_BUSBSY;
- }
- }
- /* If we don't have the bus then indicate an error. */
- if (!i2c_bus_busy(s->bus)
- || (s->mcs & STELLARIS_I2C_MCS_BUSBSY) == 0) {
- s->mcs |= STELLARIS_I2C_MCS_ERROR;
- break;
- }
- s->mcs &= ~STELLARIS_I2C_MCS_ERROR;
- if (value & 1) {
- /* Transfer a byte. */
- /* TODO: Handle errors. */
- if (s->msa & 1) {
- /* Recv */
- s->mdr = i2c_recv(s->bus) & 0xff;
- } else {
- /* Send */
- i2c_send(s->bus, s->mdr);
- }
- /* Raise an interrupt. */
- s->mris |= 1;
- }
- if (value & 4) {
- /* Finish transfer. */
- i2c_end_transfer(s->bus);
- s->mcs &= ~STELLARIS_I2C_MCS_BUSBSY;
- }
- break;
- case 0x08: /* MDR */
- s->mdr = value & 0xff;
- break;
- case 0x0c: /* MTPR */
- s->mtpr = value & 0xff;
- break;
- case 0x10: /* MIMR */
- s->mimr = 1;
- break;
- case 0x1c: /* MICR */
- s->mris &= ~value;
- break;
- case 0x20: /* MCR */
- if (value & 1)
- hw_error(
- "stellaris_i2c_write: Loopback not implemented\n");
- if (value & 0x20)
- hw_error(
- "stellaris_i2c_write: Slave mode not implemented\n");
- s->mcr = value & 0x31;
- break;
- default:
- hw_error("stellaris_i2c_write: Bad offset 0x%x\n",
- (int)offset);
- }
- stellaris_i2c_update(s);
-}
-
-static void stellaris_i2c_reset(stellaris_i2c_state *s)
-{
- if (s->mcs & STELLARIS_I2C_MCS_BUSBSY)
- i2c_end_transfer(s->bus);
-
- s->msa = 0;
- s->mcs = 0;
- s->mdr = 0;
- s->mtpr = 1;
- s->mimr = 0;
- s->mris = 0;
- s->mcr = 0;
- stellaris_i2c_update(s);
-}
-
-static const MemoryRegionOps stellaris_i2c_ops = {
- .read = stellaris_i2c_read,
- .write = stellaris_i2c_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static const VMStateDescription vmstate_stellaris_i2c = {
- .name = "stellaris_i2c",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(msa, stellaris_i2c_state),
- VMSTATE_UINT32(mcs, stellaris_i2c_state),
- VMSTATE_UINT32(mdr, stellaris_i2c_state),
- VMSTATE_UINT32(mtpr, stellaris_i2c_state),
- VMSTATE_UINT32(mimr, stellaris_i2c_state),
- VMSTATE_UINT32(mris, stellaris_i2c_state),
- VMSTATE_UINT32(mcr, stellaris_i2c_state),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int stellaris_i2c_init(SysBusDevice * dev)
-{
- stellaris_i2c_state *s = FROM_SYSBUS(stellaris_i2c_state, dev);
- i2c_bus *bus;
-
- sysbus_init_irq(dev, &s->irq);
- bus = i2c_init_bus(&dev->qdev, "i2c");
- s->bus = bus;
-
- memory_region_init_io(&s->iomem, &stellaris_i2c_ops, s,
- "i2c", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- /* ??? For now we only implement the master interface. */
- stellaris_i2c_reset(s);
- vmstate_register(&dev->qdev, -1, &vmstate_stellaris_i2c, s);
- return 0;
-}
-
-/* Analogue to Digital Converter. This is only partially implemented,
- enough for applications that use a combined ADC and timer tick. */
-
-#define STELLARIS_ADC_EM_CONTROLLER 0
-#define STELLARIS_ADC_EM_COMP 1
-#define STELLARIS_ADC_EM_EXTERNAL 4
-#define STELLARIS_ADC_EM_TIMER 5
-#define STELLARIS_ADC_EM_PWM0 6
-#define STELLARIS_ADC_EM_PWM1 7
-#define STELLARIS_ADC_EM_PWM2 8
-
-#define STELLARIS_ADC_FIFO_EMPTY 0x0100
-#define STELLARIS_ADC_FIFO_FULL 0x1000
-
-typedef struct
-{
- SysBusDevice busdev;
- MemoryRegion iomem;
- uint32_t actss;
- uint32_t ris;
- uint32_t im;
- uint32_t emux;
- uint32_t ostat;
- uint32_t ustat;
- uint32_t sspri;
- uint32_t sac;
- struct {
- uint32_t state;
- uint32_t data[16];
- } fifo[4];
- uint32_t ssmux[4];
- uint32_t ssctl[4];
- uint32_t noise;
- qemu_irq irq[4];
-} stellaris_adc_state;
-
-static uint32_t stellaris_adc_fifo_read(stellaris_adc_state *s, int n)
-{
- int tail;
-
- tail = s->fifo[n].state & 0xf;
- if (s->fifo[n].state & STELLARIS_ADC_FIFO_EMPTY) {
- s->ustat |= 1 << n;
- } else {
- s->fifo[n].state = (s->fifo[n].state & ~0xf) | ((tail + 1) & 0xf);
- s->fifo[n].state &= ~STELLARIS_ADC_FIFO_FULL;
- if (tail + 1 == ((s->fifo[n].state >> 4) & 0xf))
- s->fifo[n].state |= STELLARIS_ADC_FIFO_EMPTY;
- }
- return s->fifo[n].data[tail];
-}
-
-static void stellaris_adc_fifo_write(stellaris_adc_state *s, int n,
- uint32_t value)
-{
- int head;
-
- /* TODO: Real hardware has limited size FIFOs. We have a full 16 entry
- FIFO fir each sequencer. */
- head = (s->fifo[n].state >> 4) & 0xf;
- if (s->fifo[n].state & STELLARIS_ADC_FIFO_FULL) {
- s->ostat |= 1 << n;
- return;
- }
- s->fifo[n].data[head] = value;
- head = (head + 1) & 0xf;
- s->fifo[n].state &= ~STELLARIS_ADC_FIFO_EMPTY;
- s->fifo[n].state = (s->fifo[n].state & ~0xf0) | (head << 4);
- if ((s->fifo[n].state & 0xf) == head)
- s->fifo[n].state |= STELLARIS_ADC_FIFO_FULL;
-}
-
-static void stellaris_adc_update(stellaris_adc_state *s)
-{
- int level;
- int n;
-
- for (n = 0; n < 4; n++) {
- level = (s->ris & s->im & (1 << n)) != 0;
- qemu_set_irq(s->irq[n], level);
- }
-}
-
-static void stellaris_adc_trigger(void *opaque, int irq, int level)
-{
- stellaris_adc_state *s = (stellaris_adc_state *)opaque;
- int n;
-
- for (n = 0; n < 4; n++) {
- if ((s->actss & (1 << n)) == 0) {
- continue;
- }
-
- if (((s->emux >> (n * 4)) & 0xff) != 5) {
- continue;
- }
-
- /* Some applications use the ADC as a random number source, so introduce
- some variation into the signal. */
- s->noise = s->noise * 314159 + 1;
- /* ??? actual inputs not implemented. Return an arbitrary value. */
- stellaris_adc_fifo_write(s, n, 0x200 + ((s->noise >> 16) & 7));
- s->ris |= (1 << n);
- stellaris_adc_update(s);
- }
-}
-
-static void stellaris_adc_reset(stellaris_adc_state *s)
-{
- int n;
-
- for (n = 0; n < 4; n++) {
- s->ssmux[n] = 0;
- s->ssctl[n] = 0;
- s->fifo[n].state = STELLARIS_ADC_FIFO_EMPTY;
- }
-}
-
-static uint64_t stellaris_adc_read(void *opaque, hwaddr offset,
- unsigned size)
-{
- stellaris_adc_state *s = (stellaris_adc_state *)opaque;
-
- /* TODO: Implement this. */
- if (offset >= 0x40 && offset < 0xc0) {
- int n;
- n = (offset - 0x40) >> 5;
- switch (offset & 0x1f) {
- case 0x00: /* SSMUX */
- return s->ssmux[n];
- case 0x04: /* SSCTL */
- return s->ssctl[n];
- case 0x08: /* SSFIFO */
- return stellaris_adc_fifo_read(s, n);
- case 0x0c: /* SSFSTAT */
- return s->fifo[n].state;
- default:
- break;
- }
- }
- switch (offset) {
- case 0x00: /* ACTSS */
- return s->actss;
- case 0x04: /* RIS */
- return s->ris;
- case 0x08: /* IM */
- return s->im;
- case 0x0c: /* ISC */
- return s->ris & s->im;
- case 0x10: /* OSTAT */
- return s->ostat;
- case 0x14: /* EMUX */
- return s->emux;
- case 0x18: /* USTAT */
- return s->ustat;
- case 0x20: /* SSPRI */
- return s->sspri;
- case 0x30: /* SAC */
- return s->sac;
- default:
- hw_error("strllaris_adc_read: Bad offset 0x%x\n",
- (int)offset);
- return 0;
- }
-}
-
-static void stellaris_adc_write(void *opaque, hwaddr offset,
- uint64_t value, unsigned size)
-{
- stellaris_adc_state *s = (stellaris_adc_state *)opaque;
-
- /* TODO: Implement this. */
- if (offset >= 0x40 && offset < 0xc0) {
- int n;
- n = (offset - 0x40) >> 5;
- switch (offset & 0x1f) {
- case 0x00: /* SSMUX */
- s->ssmux[n] = value & 0x33333333;
- return;
- case 0x04: /* SSCTL */
- if (value != 6) {
- hw_error("ADC: Unimplemented sequence %" PRIx64 "\n",
- value);
- }
- s->ssctl[n] = value;
- return;
- default:
- break;
- }
- }
- switch (offset) {
- case 0x00: /* ACTSS */
- s->actss = value & 0xf;
- break;
- case 0x08: /* IM */
- s->im = value;
- break;
- case 0x0c: /* ISC */
- s->ris &= ~value;
- break;
- case 0x10: /* OSTAT */
- s->ostat &= ~value;
- break;
- case 0x14: /* EMUX */
- s->emux = value;
- break;
- case 0x18: /* USTAT */
- s->ustat &= ~value;
- break;
- case 0x20: /* SSPRI */
- s->sspri = value;
- break;
- case 0x28: /* PSSI */
- hw_error("Not implemented: ADC sample initiate\n");
- break;
- case 0x30: /* SAC */
- s->sac = value;
- break;
- default:
- hw_error("stellaris_adc_write: Bad offset 0x%x\n", (int)offset);
- }
- stellaris_adc_update(s);
-}
-
-static const MemoryRegionOps stellaris_adc_ops = {
- .read = stellaris_adc_read,
- .write = stellaris_adc_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-static const VMStateDescription vmstate_stellaris_adc = {
- .name = "stellaris_adc",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(actss, stellaris_adc_state),
- VMSTATE_UINT32(ris, stellaris_adc_state),
- VMSTATE_UINT32(im, stellaris_adc_state),
- VMSTATE_UINT32(emux, stellaris_adc_state),
- VMSTATE_UINT32(ostat, stellaris_adc_state),
- VMSTATE_UINT32(ustat, stellaris_adc_state),
- VMSTATE_UINT32(sspri, stellaris_adc_state),
- VMSTATE_UINT32(sac, stellaris_adc_state),
- VMSTATE_UINT32(fifo[0].state, stellaris_adc_state),
- VMSTATE_UINT32_ARRAY(fifo[0].data, stellaris_adc_state, 16),
- VMSTATE_UINT32(ssmux[0], stellaris_adc_state),
- VMSTATE_UINT32(ssctl[0], stellaris_adc_state),
- VMSTATE_UINT32(fifo[1].state, stellaris_adc_state),
- VMSTATE_UINT32_ARRAY(fifo[1].data, stellaris_adc_state, 16),
- VMSTATE_UINT32(ssmux[1], stellaris_adc_state),
- VMSTATE_UINT32(ssctl[1], stellaris_adc_state),
- VMSTATE_UINT32(fifo[2].state, stellaris_adc_state),
- VMSTATE_UINT32_ARRAY(fifo[2].data, stellaris_adc_state, 16),
- VMSTATE_UINT32(ssmux[2], stellaris_adc_state),
- VMSTATE_UINT32(ssctl[2], stellaris_adc_state),
- VMSTATE_UINT32(fifo[3].state, stellaris_adc_state),
- VMSTATE_UINT32_ARRAY(fifo[3].data, stellaris_adc_state, 16),
- VMSTATE_UINT32(ssmux[3], stellaris_adc_state),
- VMSTATE_UINT32(ssctl[3], stellaris_adc_state),
- VMSTATE_UINT32(noise, stellaris_adc_state),
- VMSTATE_END_OF_LIST()
- }
-};
-
-static int stellaris_adc_init(SysBusDevice *dev)
-{
- stellaris_adc_state *s = FROM_SYSBUS(stellaris_adc_state, dev);
- int n;
-
- for (n = 0; n < 4; n++) {
- sysbus_init_irq(dev, &s->irq[n]);
- }
-
- memory_region_init_io(&s->iomem, &stellaris_adc_ops, s,
- "adc", 0x1000);
- sysbus_init_mmio(dev, &s->iomem);
- stellaris_adc_reset(s);
- qdev_init_gpio_in(&dev->qdev, stellaris_adc_trigger, 1);
- vmstate_register(&dev->qdev, -1, &vmstate_stellaris_adc, s);
- return 0;
-}
-
-/* Board init. */
-static stellaris_board_info stellaris_boards[] = {
- { "LM3S811EVB",
- 0,
- 0x0032000e,
- 0x001f001f, /* dc0 */
- 0x001132bf,
- 0x01071013,
- 0x3f0f01ff,
- 0x0000001f,
- BP_OLED_I2C
- },
- { "LM3S6965EVB",
- 0x10010002,
- 0x1073402e,
- 0x00ff007f, /* dc0 */
- 0x001133ff,
- 0x030f5317,
- 0x0f0f87ff,
- 0x5000007f,
- BP_OLED_SSI | BP_GAMEPAD
- }
-};
-
-static void stellaris_init(const char *kernel_filename, const char *cpu_model,
- stellaris_board_info *board)
-{
- static const int uart_irq[] = {5, 6, 33, 34};
- static const int timer_irq[] = {19, 21, 23, 35};
- static const uint32_t gpio_addr[7] =
- { 0x40004000, 0x40005000, 0x40006000, 0x40007000,
- 0x40024000, 0x40025000, 0x40026000};
- static const int gpio_irq[7] = {0, 1, 2, 3, 4, 30, 31};
-
- MemoryRegion *address_space_mem = get_system_memory();
- qemu_irq *pic;
- DeviceState *gpio_dev[7];
- qemu_irq gpio_in[7][8];
- qemu_irq gpio_out[7][8];
- qemu_irq adc;
- int sram_size;
- int flash_size;
- i2c_bus *i2c;
- DeviceState *dev;
- int i;
- int j;
-
- flash_size = ((board->dc0 & 0xffff) + 1) << 1;
- sram_size = (board->dc0 >> 18) + 1;
- pic = armv7m_init(address_space_mem,
- flash_size, sram_size, kernel_filename, cpu_model);
-
- if (board->dc1 & (1 << 16)) {
- dev = sysbus_create_varargs("stellaris-adc", 0x40038000,
- pic[14], pic[15], pic[16], pic[17], NULL);
- adc = qdev_get_gpio_in(dev, 0);
- } else {
- adc = NULL;
- }
- for (i = 0; i < 4; i++) {
- if (board->dc2 & (0x10000 << i)) {
- dev = sysbus_create_simple("stellaris-gptm",
- 0x40030000 + i * 0x1000,
- pic[timer_irq[i]]);
- /* TODO: This is incorrect, but we get away with it because
- the ADC output is only ever pulsed. */
- qdev_connect_gpio_out(dev, 0, adc);
- }
- }
-
- stellaris_sys_init(0x400fe000, pic[28], board, nd_table[0].macaddr.a);
-
- for (i = 0; i < 7; i++) {
- if (board->dc4 & (1 << i)) {
- gpio_dev[i] = sysbus_create_simple("pl061_luminary", gpio_addr[i],
- pic[gpio_irq[i]]);
- for (j = 0; j < 8; j++) {
- gpio_in[i][j] = qdev_get_gpio_in(gpio_dev[i], j);
- gpio_out[i][j] = NULL;
- }
- }
- }
-
- if (board->dc2 & (1 << 12)) {
- dev = sysbus_create_simple("stellaris-i2c", 0x40020000, pic[8]);
- i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
- if (board->peripherals & BP_OLED_I2C) {
- i2c_create_slave(i2c, "ssd0303", 0x3d);
- }
- }
-
- for (i = 0; i < 4; i++) {
- if (board->dc2 & (1 << i)) {
- sysbus_create_simple("pl011_luminary", 0x4000c000 + i * 0x1000,
- pic[uart_irq[i]]);
- }
- }
- if (board->dc2 & (1 << 4)) {
- dev = sysbus_create_simple("pl022", 0x40008000, pic[7]);
- if (board->peripherals & BP_OLED_SSI) {
- void *bus;
- DeviceState *sddev;
- DeviceState *ssddev;
-
- /* Some boards have both an OLED controller and SD card connected to
- * the same SSI port, with the SD card chip select connected to a
- * GPIO pin. Technically the OLED chip select is connected to the
- * SSI Fss pin. We do not bother emulating that as both devices
- * should never be selected simultaneously, and our OLED controller
- * ignores stray 0xff commands that occur when deselecting the SD
- * card.
- */
- bus = qdev_get_child_bus(dev, "ssi");
-
- sddev = ssi_create_slave(bus, "ssi-sd");
- ssddev = ssi_create_slave(bus, "ssd0323");
- gpio_out[GPIO_D][0] = qemu_irq_split(qdev_get_gpio_in(sddev, 0),
- qdev_get_gpio_in(ssddev, 0));
- gpio_out[GPIO_C][7] = qdev_get_gpio_in(ssddev, 1);
-
- /* Make sure the select pin is high. */
- qemu_irq_raise(gpio_out[GPIO_D][0]);
- }
- }
- if (board->dc4 & (1 << 28)) {
- DeviceState *enet;
-
- qemu_check_nic_model(&nd_table[0], "stellaris");
-
- enet = qdev_create(NULL, "stellaris_enet");
- qdev_set_nic_properties(enet, &nd_table[0]);
- qdev_init_nofail(enet);
- sysbus_mmio_map(SYS_BUS_DEVICE(enet), 0, 0x40048000);
- sysbus_connect_irq(SYS_BUS_DEVICE(enet), 0, pic[42]);
- }
- if (board->peripherals & BP_GAMEPAD) {
- qemu_irq gpad_irq[5];
- static const int gpad_keycode[5] = { 0xc8, 0xd0, 0xcb, 0xcd, 0x1d };
-
- gpad_irq[0] = qemu_irq_invert(gpio_in[GPIO_E][0]); /* up */
- gpad_irq[1] = qemu_irq_invert(gpio_in[GPIO_E][1]); /* down */
- gpad_irq[2] = qemu_irq_invert(gpio_in[GPIO_E][2]); /* left */
- gpad_irq[3] = qemu_irq_invert(gpio_in[GPIO_E][3]); /* right */
- gpad_irq[4] = qemu_irq_invert(gpio_in[GPIO_F][1]); /* select */
-
- stellaris_gamepad_init(5, gpad_irq, gpad_keycode);
- }
- for (i = 0; i < 7; i++) {
- if (board->dc4 & (1 << i)) {
- for (j = 0; j < 8; j++) {
- if (gpio_out[i][j]) {
- qdev_connect_gpio_out(gpio_dev[i], j, gpio_out[i][j]);
- }
- }
- }
- }
-}
-
-/* FIXME: Figure out how to generate these from stellaris_boards. */
-static void lm3s811evb_init(QEMUMachineInitArgs *args)
-{
- const char *cpu_model = args->cpu_model;
- const char *kernel_filename = args->kernel_filename;
- stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]);
-}
-
-static void lm3s6965evb_init(QEMUMachineInitArgs *args)
-{
- const char *cpu_model = args->cpu_model;
- const char *kernel_filename = args->kernel_filename;
- stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]);
-}
-
-static QEMUMachine lm3s811evb_machine = {
- .name = "lm3s811evb",
- .desc = "Stellaris LM3S811EVB",
- .init = lm3s811evb_init,
- DEFAULT_MACHINE_OPTIONS,
-};
-
-static QEMUMachine lm3s6965evb_machine = {
- .name = "lm3s6965evb",
- .desc = "Stellaris LM3S6965EVB",
- .init = lm3s6965evb_init,
- DEFAULT_MACHINE_OPTIONS,
-};
-
-static void stellaris_machine_init(void)
-{
- qemu_register_machine(&lm3s811evb_machine);
- qemu_register_machine(&lm3s6965evb_machine);
-}
-
-machine_init(stellaris_machine_init);
-
-static void stellaris_i2c_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
-
- sdc->init = stellaris_i2c_init;
-}
-
-static const TypeInfo stellaris_i2c_info = {
- .name = "stellaris-i2c",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(stellaris_i2c_state),
- .class_init = stellaris_i2c_class_init,
-};
-
-static void stellaris_gptm_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
-
- sdc->init = stellaris_gptm_init;
-}
-
-static const TypeInfo stellaris_gptm_info = {
- .name = "stellaris-gptm",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(gptm_state),
- .class_init = stellaris_gptm_class_init,
-};
-
-static void stellaris_adc_class_init(ObjectClass *klass, void *data)
-{
- SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
-
- sdc->init = stellaris_adc_init;
-}
-
-static const TypeInfo stellaris_adc_info = {
- .name = "stellaris-adc",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(stellaris_adc_state),
- .class_init = stellaris_adc_class_init,
-};
-
-static void stellaris_register_types(void)
-{
- type_register_static(&stellaris_i2c_info);
- type_register_static(&stellaris_gptm_info);
- type_register_static(&stellaris_adc_info);
-}
-
-type_init(stellaris_register_types)