diff options
Diffstat (limited to 'hw/misc/aspeed_scu.c')
| -rw-r--r-- | hw/misc/aspeed_scu.c | 36 |
1 files changed, 27 insertions, 9 deletions
diff --git a/hw/misc/aspeed_scu.c b/hw/misc/aspeed_scu.c index 1af1a35..a0ab5ee 100644 --- a/hw/misc/aspeed_scu.c +++ b/hw/misc/aspeed_scu.c @@ -91,6 +91,7 @@ #define BMC_DEV_ID TO_REG(0x1A4) #define AST2600_PROT_KEY TO_REG(0x00) +#define AST2600_PROT_KEY2 TO_REG(0x10) #define AST2600_SILICON_REV TO_REG(0x04) #define AST2600_SILICON_REV2 TO_REG(0x14) #define AST2600_SYS_RST_CTRL TO_REG(0x40) @@ -176,6 +177,7 @@ #define AST2700_SCUIO_UARTCLK_GEN TO_REG(0x330) #define AST2700_SCUIO_HUARTCLK_GEN TO_REG(0x334) #define AST2700_SCUIO_CLK_DUTY_MEAS_RST TO_REG(0x388) +#define AST2700_SCUIO_FREQ_CNT_CTL TO_REG(0x3A0) #define SCU_IO_REGION_SIZE 0x1000 @@ -618,7 +620,7 @@ static const Property aspeed_scu_properties[] = { DEFINE_PROP_UINT32("hw-prot-key", AspeedSCUState, hw_prot_key, 0), }; -static void aspeed_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); dc->realize = aspeed_scu_realize; @@ -637,7 +639,7 @@ static const TypeInfo aspeed_scu_info = { .abstract = true, }; -static void aspeed_2400_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_2400_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); @@ -659,7 +661,7 @@ static const TypeInfo aspeed_2400_scu_info = { .class_init = aspeed_2400_scu_class_init, }; -static void aspeed_2500_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_2500_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); @@ -722,6 +724,8 @@ static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset, int reg = TO_REG(offset); /* Truncate here so bitwise operations below behave as expected */ uint32_t data = data64; + bool prot_data_state = data == ASPEED_SCU_PROT_KEY; + bool unlocked = s->regs[AST2600_PROT_KEY] && s->regs[AST2600_PROT_KEY2]; if (reg >= ASPEED_AST2600_SCU_NR_REGS) { qemu_log_mask(LOG_GUEST_ERROR, @@ -730,15 +734,24 @@ static void aspeed_ast2600_scu_write(void *opaque, hwaddr offset, return; } - if (reg > PROT_KEY && !s->regs[PROT_KEY]) { + if ((reg != AST2600_PROT_KEY && reg != AST2600_PROT_KEY2) && !unlocked) { qemu_log_mask(LOG_GUEST_ERROR, "%s: SCU is locked!\n", __func__); + return; } trace_aspeed_scu_write(offset, size, data); switch (reg) { case AST2600_PROT_KEY: - s->regs[reg] = (data == ASPEED_SCU_PROT_KEY) ? 1 : 0; + /* + * Writing a value to SCU000 will modify both protection + * registers to each protection register individually. + */ + s->regs[AST2600_PROT_KEY] = prot_data_state; + s->regs[AST2600_PROT_KEY2] = prot_data_state; + return; + case AST2600_PROT_KEY2: + s->regs[AST2600_PROT_KEY2] = prot_data_state; return; case AST2600_HW_STRAP1: case AST2600_HW_STRAP2: @@ -835,7 +848,7 @@ static void aspeed_ast2600_scu_reset(DeviceState *dev) s->regs[PROT_KEY] = s->hw_prot_key; } -static void aspeed_2600_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_2600_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); @@ -954,7 +967,7 @@ static void aspeed_ast2700_scu_reset(DeviceState *dev) s->regs[AST2700_HW_STRAP1] = s->hw_strap1; } -static void aspeed_2700_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_2700_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); @@ -1022,6 +1035,10 @@ static void aspeed_ast2700_scuio_write(void *opaque, hwaddr offset, s->regs[reg - 1] ^= data; updated = true; break; + case AST2700_SCUIO_FREQ_CNT_CTL: + s->regs[reg] = deposit32(s->regs[reg], 6, 1, !!(data & BIT(1))); + updated = true; + break; default: qemu_log_mask(LOG_GUEST_ERROR, "%s: Unhandled write at offset 0x%" HWADDR_PRIx "\n", @@ -1066,9 +1083,10 @@ static const uint32_t ast2700_a0_resets_io[ASPEED_AST2700_SCU_NR_REGS] = { [AST2700_SCUIO_UARTCLK_GEN] = 0x00014506, [AST2700_SCUIO_HUARTCLK_GEN] = 0x000145c0, [AST2700_SCUIO_CLK_DUTY_MEAS_RST] = 0x0c9100d2, + [AST2700_SCUIO_FREQ_CNT_CTL] = 0x00000080, }; -static void aspeed_2700_scuio_class_init(ObjectClass *klass, void *data) +static void aspeed_2700_scuio_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); @@ -1126,7 +1144,7 @@ static void aspeed_ast1030_scu_reset(DeviceState *dev) s->regs[PROT_KEY] = s->hw_prot_key; } -static void aspeed_1030_scu_class_init(ObjectClass *klass, void *data) +static void aspeed_1030_scu_class_init(ObjectClass *klass, const void *data) { DeviceClass *dc = DEVICE_CLASS(klass); AspeedSCUClass *asc = ASPEED_SCU_CLASS(klass); |