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Add new PMC3 flashing method

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This commit is contained in:
Jeremy Soller 2020-01-16 14:40:24 -07:00
parent 5c4d946a66
commit f5c87e8f25
No known key found for this signature in database
GPG Key ID: E988B49EE78A7FB1
6 changed files with 261 additions and 195 deletions
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4
src/board/system76/darp5/pmc.c
View File

@ -76,9 +76,9 @@ void pmc_event(struct Pmc * pmc) {
pmc_sci_queue = 0;
break;
case 0xDC:
case 0xEC:
DEBUG(" scratch rom\n");
pmc_write(pmc, 0x33, PMC_TIMEOUT);
pmc_write(pmc, 0x76, PMC_TIMEOUT);
scratch_trampoline();
break;
}

148
src/board/system76/darp5/scratch/main.c
View File

@ -10,83 +10,105 @@ volatile uint8_t __xdata __at(0x103D) ECINDAR2;
volatile uint8_t __xdata __at(0x103E) ECINDAR3;
volatile uint8_t __xdata __at(0x103F) ECINDDR;
#define FLASH_SPI 0x00000000
#define FLASH_EMBEDDED 0x40000000
uint8_t acpi_read(uint8_t addr) {
uint8_t data = 0;
static int flash_transaction(uint32_t offset, uint8_t * data, int length, bool read) {
int i;
for (i = 0; i < length; i++, offset++) {
ECINDAR3 = (uint8_t)(offset >> 24);
ECINDAR2 = (uint8_t)(offset >> 16);
ECINDAR1 = (uint8_t)(offset >> 8);
ECINDAR0 = (uint8_t)(offset);
if (read) {
data[i] = ECINDDR;
} else {
ECINDDR = data[i];
}
switch (addr) {
case 4:
data = ECINDAR0;
break;
case 5:
data = ECINDAR1;
break;
case 6:
data = ECINDAR2;
break;
case 7:
data = ECINDAR3;
break;
case 8:
data = ECINDDR;
break;
}
return data;
}
void acpi_write(uint8_t addr, uint8_t data) {
switch (addr) {
case 4:
ECINDAR0 = data;
break;
case 5:
ECINDAR1 = data;
break;
case 6:
ECINDAR2 = data;
break;
case 7:
ECINDAR3 = data;
break;
case 8:
ECINDDR = data;
break;
}
return i;
}
enum PmcState {
PMC_STATE_DEFAULT,
PMC_STATE_WRITE,
PMC_STATE_ACPI_READ,
PMC_STATE_ACPI_WRITE,
PMC_STATE_ACPI_WRITE_ADDR,
};
static void pmc_event(struct Pmc * pmc) {
void pmc_event(struct Pmc * pmc) {
static enum PmcState state = PMC_STATE_DEFAULT;
static uint8_t state_data[2] = {0, 0};
uint8_t sts = pmc_status(pmc);
if (sts & PMC_STS_IBF) {
uint8_t data = pmc_read(pmc);
if (sts & PMC_STS_CMD) {
printf_tiny("%x\n", data);
state = PMC_STATE_DEFAULT;
switch (data) {
case 0x80:
state = PMC_STATE_ACPI_READ;
break;
case 0x81:
state = PMC_STATE_ACPI_WRITE;
break;
case 0xEC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
} else {
switch (state) {
case PMC_STATE_DEFAULT:
switch (data) {
case 0x01:
// Enable follow
ECINDAR3 = 0x0F;
break;
case 0x02:
// Generate high CE#
data = 0;
flash_transaction(0x7FFFFE00, &data, 1, false);
// Fall through
case 0x03:
state = PMC_STATE_WRITE;
break;
case 0x04:
// Read data
flash_transaction(0x7FFFFD00, &data, 1, true);
pmc_write(pmc, data);
printf_tiny("=%x\n", data);
break;
case 0x05:
// Disable follow
ECINDAR3 = 0x00;
break;
case 0xFC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
break;
case PMC_STATE_WRITE:
// Write command or data
flash_transaction(0x7FFFFD00, &data, 1, false);
state = PMC_STATE_DEFAULT;
break;
case PMC_STATE_ACPI_READ:
state = PMC_STATE_DEFAULT;
uint8_t value = acpi_read(data);
pmc_write(pmc, value);
break;
case PMC_STATE_ACPI_WRITE:
state = PMC_STATE_ACPI_WRITE_ADDR;
state_data[0] = data;
break;
case PMC_STATE_ACPI_WRITE_ADDR:
state = PMC_STATE_DEFAULT;
acpi_write(state_data[0], data);
break;
default:
state = PMC_STATE_DEFAULT;
break;
}
}
}
@ -96,6 +118,6 @@ static void pmc_event(struct Pmc * pmc) {
void main(void) {
printf_tiny("SCRATCH\n");
for (;;) {
pmc_event(&PMC_1);
pmc_event(&PMC_3);
}
}

4
src/board/system76/galp3-c/pmc.c
View File

@ -76,9 +76,9 @@ void pmc_event(struct Pmc * pmc) {
pmc_sci_queue = 0;
break;
case 0xDC:
case 0xEC:
DEBUG(" scratch rom\n");
pmc_write(pmc, 0x33, PMC_TIMEOUT);
pmc_write(pmc, 0x76, PMC_TIMEOUT);
scratch_trampoline();
break;
}

148
src/board/system76/galp3-c/scratch/main.c
View File

@ -10,83 +10,105 @@ volatile uint8_t __xdata __at(0x103D) ECINDAR2;
volatile uint8_t __xdata __at(0x103E) ECINDAR3;
volatile uint8_t __xdata __at(0x103F) ECINDDR;
#define FLASH_SPI 0x00000000
#define FLASH_EMBEDDED 0x40000000
uint8_t acpi_read(uint8_t addr) {
uint8_t data = 0;
static int flash_transaction(uint32_t offset, uint8_t * data, int length, bool read) {
int i;
for (i = 0; i < length; i++, offset++) {
ECINDAR3 = (uint8_t)(offset >> 24);
ECINDAR2 = (uint8_t)(offset >> 16);
ECINDAR1 = (uint8_t)(offset >> 8);
ECINDAR0 = (uint8_t)(offset);
if (read) {
data[i] = ECINDDR;
} else {
ECINDDR = data[i];
}
switch (addr) {
case 4:
data = ECINDAR0;
break;
case 5:
data = ECINDAR1;
break;
case 6:
data = ECINDAR2;
break;
case 7:
data = ECINDAR3;
break;
case 8:
data = ECINDDR;
break;
}
return data;
}
void acpi_write(uint8_t addr, uint8_t data) {
switch (addr) {
case 4:
ECINDAR0 = data;
break;
case 5:
ECINDAR1 = data;
break;
case 6:
ECINDAR2 = data;
break;
case 7:
ECINDAR3 = data;
break;
case 8:
ECINDDR = data;
break;
}
return i;
}
enum PmcState {
PMC_STATE_DEFAULT,
PMC_STATE_WRITE,
PMC_STATE_ACPI_READ,
PMC_STATE_ACPI_WRITE,
PMC_STATE_ACPI_WRITE_ADDR,
};
static void pmc_event(struct Pmc * pmc) {
void pmc_event(struct Pmc * pmc) {
static enum PmcState state = PMC_STATE_DEFAULT;
static uint8_t state_data[2] = {0, 0};
uint8_t sts = pmc_status(pmc);
if (sts & PMC_STS_IBF) {
uint8_t data = pmc_read(pmc);
if (sts & PMC_STS_CMD) {
printf_tiny("%x\n", data);
state = PMC_STATE_DEFAULT;
switch (data) {
case 0x80:
state = PMC_STATE_ACPI_READ;
break;
case 0x81:
state = PMC_STATE_ACPI_WRITE;
break;
case 0xEC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
} else {
switch (state) {
case PMC_STATE_DEFAULT:
switch (data) {
case 0x01:
// Enable follow
ECINDAR3 = 0x0F;
break;
case 0x02:
// Generate high CE#
data = 0;
flash_transaction(0x7FFFFE00, &data, 1, false);
// Fall through
case 0x03:
state = PMC_STATE_WRITE;
break;
case 0x04:
// Read data
flash_transaction(0x7FFFFD00, &data, 1, true);
pmc_write(pmc, data);
printf_tiny("=%x\n", data);
break;
case 0x05:
// Disable follow
ECINDAR3 = 0x00;
break;
case 0xFC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
break;
case PMC_STATE_WRITE:
// Write command or data
flash_transaction(0x7FFFFD00, &data, 1, false);
state = PMC_STATE_DEFAULT;
break;
case PMC_STATE_ACPI_READ:
state = PMC_STATE_DEFAULT;
uint8_t value = acpi_read(data);
pmc_write(pmc, value);
break;
case PMC_STATE_ACPI_WRITE:
state = PMC_STATE_ACPI_WRITE_ADDR;
state_data[0] = data;
break;
case PMC_STATE_ACPI_WRITE_ADDR:
state = PMC_STATE_DEFAULT;
acpi_write(state_data[0], data);
break;
default:
state = PMC_STATE_DEFAULT;
break;
}
}
}
@ -96,6 +118,6 @@ static void pmc_event(struct Pmc * pmc) {
void main(void) {
printf_tiny("SCRATCH\n");
for (;;) {
pmc_event(&PMC_1);
pmc_event(&PMC_3);
}
}

4
src/board/system76/lemp9/pmc.c
View File

@ -76,9 +76,9 @@ void pmc_event(struct Pmc * pmc) {
pmc_sci_queue = 0;
break;
case 0xDC:
case 0xEC:
DEBUG(" scratch rom\n");
pmc_write(pmc, 0x33, PMC_TIMEOUT);
pmc_write(pmc, 0x76, PMC_TIMEOUT);
scratch_trampoline();
break;
}

148
src/board/system76/lemp9/scratch/main.c
View File

@ -10,83 +10,105 @@ volatile uint8_t __xdata __at(0x103D) ECINDAR2;
volatile uint8_t __xdata __at(0x103E) ECINDAR3;
volatile uint8_t __xdata __at(0x103F) ECINDDR;
#define FLASH_SPI 0x00000000
#define FLASH_EMBEDDED 0x40000000
uint8_t acpi_read(uint8_t addr) {
uint8_t data = 0;
static int flash_transaction(uint32_t offset, uint8_t * data, int length, bool read) {
int i;
for (i = 0; i < length; i++, offset++) {
ECINDAR3 = (uint8_t)(offset >> 24);
ECINDAR2 = (uint8_t)(offset >> 16);
ECINDAR1 = (uint8_t)(offset >> 8);
ECINDAR0 = (uint8_t)(offset);
if (read) {
data[i] = ECINDDR;
} else {
ECINDDR = data[i];
}
switch (addr) {
case 4:
data = ECINDAR0;
break;
case 5:
data = ECINDAR1;
break;
case 6:
data = ECINDAR2;
break;
case 7:
data = ECINDAR3;
break;
case 8:
data = ECINDDR;
break;
}
return data;
}
void acpi_write(uint8_t addr, uint8_t data) {
switch (addr) {
case 4:
ECINDAR0 = data;
break;
case 5:
ECINDAR1 = data;
break;
case 6:
ECINDAR2 = data;
break;
case 7:
ECINDAR3 = data;
break;
case 8:
ECINDDR = data;
break;
}
return i;
}
enum PmcState {
PMC_STATE_DEFAULT,
PMC_STATE_WRITE,
PMC_STATE_ACPI_READ,
PMC_STATE_ACPI_WRITE,
PMC_STATE_ACPI_WRITE_ADDR,
};
static void pmc_event(struct Pmc * pmc) {
void pmc_event(struct Pmc * pmc) {
static enum PmcState state = PMC_STATE_DEFAULT;
static uint8_t state_data[2] = {0, 0};
uint8_t sts = pmc_status(pmc);
if (sts & PMC_STS_IBF) {
uint8_t data = pmc_read(pmc);
if (sts & PMC_STS_CMD) {
printf_tiny("%x\n", data);
state = PMC_STATE_DEFAULT;
switch (data) {
case 0x80:
state = PMC_STATE_ACPI_READ;
break;
case 0x81:
state = PMC_STATE_ACPI_WRITE;
break;
case 0xEC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
} else {
switch (state) {
case PMC_STATE_DEFAULT:
switch (data) {
case 0x01:
// Enable follow
ECINDAR3 = 0x0F;
break;
case 0x02:
// Generate high CE#
data = 0;
flash_transaction(0x7FFFFE00, &data, 1, false);
// Fall through
case 0x03:
state = PMC_STATE_WRITE;
break;
case 0x04:
// Read data
flash_transaction(0x7FFFFD00, &data, 1, true);
pmc_write(pmc, data);
printf_tiny("=%x\n", data);
break;
case 0x05:
// Disable follow
ECINDAR3 = 0x00;
break;
case 0xFC:
// Clear processor caches
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
__asm__("mov 0xf7, #1");
__asm__("nop");
// Exit scratch ROM by going through trampoline
__asm__("ljmp 0x1000");
break;
}
break;
case PMC_STATE_WRITE:
// Write command or data
flash_transaction(0x7FFFFD00, &data, 1, false);
state = PMC_STATE_DEFAULT;
break;
case PMC_STATE_ACPI_READ:
state = PMC_STATE_DEFAULT;
uint8_t value = acpi_read(data);
pmc_write(pmc, value);
break;
case PMC_STATE_ACPI_WRITE:
state = PMC_STATE_ACPI_WRITE_ADDR;
state_data[0] = data;
break;
case PMC_STATE_ACPI_WRITE_ADDR:
state = PMC_STATE_DEFAULT;
acpi_write(state_data[0], data);
break;
default:
state = PMC_STATE_DEFAULT;
break;
}
}
}
@ -96,6 +118,6 @@ static void pmc_event(struct Pmc * pmc) {
void main(void) {
printf_tiny("SCRATCH\n");
for (;;) {
pmc_event(&PMC_1);
pmc_event(&PMC_3);
}
}