| /* |
| * Luminary Micro Stellaris peripherals |
| * |
| * Copyright (c) 2006 CodeSourcery. |
| * Written by Paul Brook |
| * |
| * This code is licensed under the GPL. |
| */ |
| |
| #include "sysbus.h" |
| #include "ssi.h" |
| #include "arm-misc.h" |
| #include "devices.h" |
| #include "qemu-timer.h" |
| #include "i2c.h" |
| #include "net.h" |
| #include "boards.h" |
| #include "exec-memory.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; |
| 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 uint32_t gptm_read(void *opaque, target_phys_addr_t offset) |
| { |
| 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, target_phys_addr_t offset, uint32_t value) |
| { |
| 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 CPUReadMemoryFunc * const gptm_readfn[] = { |
| gptm_read, |
| gptm_read, |
| gptm_read |
| }; |
| |
| static CPUWriteMemoryFunc * const gptm_writefn[] = { |
| gptm_write, |
| gptm_write, |
| gptm_write |
| }; |
| |
| 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) |
| { |
| int iomemtype; |
| gptm_state *s = FROM_SYSBUS(gptm_state, dev); |
| |
| sysbus_init_irq(dev, &s->irq); |
| qdev_init_gpio_out(&dev->qdev, &s->trigger, 1); |
| |
| iomemtype = cpu_register_io_memory(gptm_readfn, |
| gptm_writefn, s, |
| DEVICE_NATIVE_ENDIAN); |
| sysbus_init_mmio(dev, 0x1000, iomemtype); |
| |
| 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 { |
| 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 uint32_t ssys_read(void *opaque, target_phys_addr_t offset) |
| { |
| 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, target_phys_addr_t offset, uint32_t value) |
| { |
| 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 CPUReadMemoryFunc * const ssys_readfn[] = { |
| ssys_read, |
| ssys_read, |
| ssys_read |
| }; |
| |
| static CPUWriteMemoryFunc * const ssys_writefn[] = { |
| ssys_write, |
| ssys_write, |
| ssys_write |
| }; |
| |
| 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; |
| } |
| |
| 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) |
| { |
| int iomemtype; |
| 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); |
| |
| iomemtype = cpu_register_io_memory(ssys_readfn, |
| ssys_writefn, s, |
| DEVICE_NATIVE_ENDIAN); |
| cpu_register_physical_memory(base, 0x00001000, iomemtype); |
| 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; |
| 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 uint32_t stellaris_i2c_read(void *opaque, target_phys_addr_t offset) |
| { |
| 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, target_phys_addr_t offset, |
| uint32_t value) |
| { |
| 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 CPUReadMemoryFunc * const stellaris_i2c_readfn[] = { |
| stellaris_i2c_read, |
| stellaris_i2c_read, |
| stellaris_i2c_read |
| }; |
| |
| static CPUWriteMemoryFunc * const stellaris_i2c_writefn[] = { |
| stellaris_i2c_write, |
| stellaris_i2c_write, |
| stellaris_i2c_write |
| }; |
| |
| 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; |
| int iomemtype; |
| |
| sysbus_init_irq(dev, &s->irq); |
| bus = i2c_init_bus(&dev->qdev, "i2c"); |
| s->bus = bus; |
| |
| iomemtype = cpu_register_io_memory(stellaris_i2c_readfn, |
| stellaris_i2c_writefn, s, |
| DEVICE_NATIVE_ENDIAN); |
| sysbus_init_mmio(dev, 0x1000, iomemtype); |
| /* ??? 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; |
| 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 uint32_t stellaris_adc_read(void *opaque, target_phys_addr_t offset) |
| { |
| 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, target_phys_addr_t offset, |
| uint32_t value) |
| { |
| 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 %x\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 CPUReadMemoryFunc * const stellaris_adc_readfn[] = { |
| stellaris_adc_read, |
| stellaris_adc_read, |
| stellaris_adc_read |
| }; |
| |
| static CPUWriteMemoryFunc * const stellaris_adc_writefn[] = { |
| stellaris_adc_write, |
| stellaris_adc_write, |
| stellaris_adc_write |
| }; |
| |
| 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 iomemtype; |
| int n; |
| |
| for (n = 0; n < 4; n++) { |
| sysbus_init_irq(dev, &s->irq[n]); |
| } |
| |
| iomemtype = cpu_register_io_memory(stellaris_adc_readfn, |
| stellaris_adc_writefn, s, |
| DEVICE_NATIVE_ENDIAN); |
| sysbus_init_mmio(dev, 0x1000, iomemtype); |
| 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; |
| } |
| |
| /* 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. */ |
| |
| typedef struct { |
| SSISlave ssidev; |
| qemu_irq irq; |
| int current_dev; |
| SSIBus *bus[2]; |
| } stellaris_ssi_bus_state; |
| |
| static void stellaris_ssi_bus_select(void *opaque, int irq, int level) |
| { |
| stellaris_ssi_bus_state *s = (stellaris_ssi_bus_state *)opaque; |
| |
| s->current_dev = level; |
| } |
| |
| static uint32_t stellaris_ssi_bus_transfer(SSISlave *dev, uint32_t val) |
| { |
| stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev); |
| |
| return ssi_transfer(s->bus[s->current_dev], val); |
| } |
| |
| static const VMStateDescription vmstate_stellaris_ssi_bus = { |
| .name = "stellaris_ssi_bus", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .minimum_version_id_old = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_INT32(current_dev, stellaris_ssi_bus_state), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static int stellaris_ssi_bus_init(SSISlave *dev) |
| { |
| stellaris_ssi_bus_state *s = FROM_SSI_SLAVE(stellaris_ssi_bus_state, dev); |
| |
| s->bus[0] = ssi_create_bus(&dev->qdev, "ssi0"); |
| s->bus[1] = ssi_create_bus(&dev->qdev, "ssi1"); |
| qdev_init_gpio_in(&dev->qdev, stellaris_ssi_bus_select, 1); |
| |
| vmstate_register(&dev->qdev, -1, &vmstate_stellaris_ssi_bus, 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) { |
| DeviceState *mux; |
| void *bus; |
| |
| bus = qdev_get_child_bus(dev, "ssi"); |
| mux = ssi_create_slave(bus, "evb6965-ssi"); |
| gpio_out[GPIO_D][0] = qdev_get_gpio_in(mux, 0); |
| |
| bus = qdev_get_child_bus(mux, "ssi0"); |
| ssi_create_slave(bus, "ssi-sd"); |
| |
| bus = qdev_get_child_bus(mux, "ssi1"); |
| dev = ssi_create_slave(bus, "ssd0323"); |
| gpio_out[GPIO_C][7] = qdev_get_gpio_in(dev, 0); |
| |
| /* 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(sysbus_from_qdev(enet), 0, 0x40048000); |
| sysbus_connect_irq(sysbus_from_qdev(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(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) |
| { |
| stellaris_init(kernel_filename, cpu_model, &stellaris_boards[0]); |
| } |
| |
| static void lm3s6965evb_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) |
| { |
| stellaris_init(kernel_filename, cpu_model, &stellaris_boards[1]); |
| } |
| |
| static QEMUMachine lm3s811evb_machine = { |
| .name = "lm3s811evb", |
| .desc = "Stellaris LM3S811EVB", |
| .init = lm3s811evb_init, |
| }; |
| |
| static QEMUMachine lm3s6965evb_machine = { |
| .name = "lm3s6965evb", |
| .desc = "Stellaris LM3S6965EVB", |
| .init = lm3s6965evb_init, |
| }; |
| |
| static void stellaris_machine_init(void) |
| { |
| qemu_register_machine(&lm3s811evb_machine); |
| qemu_register_machine(&lm3s6965evb_machine); |
| } |
| |
| machine_init(stellaris_machine_init); |
| |
| static SSISlaveInfo stellaris_ssi_bus_info = { |
| .qdev.name = "evb6965-ssi", |
| .qdev.size = sizeof(stellaris_ssi_bus_state), |
| .init = stellaris_ssi_bus_init, |
| .transfer = stellaris_ssi_bus_transfer |
| }; |
| |
| static void stellaris_register_devices(void) |
| { |
| sysbus_register_dev("stellaris-i2c", sizeof(stellaris_i2c_state), |
| stellaris_i2c_init); |
| sysbus_register_dev("stellaris-gptm", sizeof(gptm_state), |
| stellaris_gptm_init); |
| sysbus_register_dev("stellaris-adc", sizeof(stellaris_adc_state), |
| stellaris_adc_init); |
| ssi_register_slave(&stellaris_ssi_bus_info); |
| } |
| |
| device_init(stellaris_register_devices) |