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Diffstat (limited to 'src/flash/nor/aduc702x.c')
-rw-r--r--src/flash/nor/aduc702x.c343
1 files changed, 169 insertions, 174 deletions
diff --git a/src/flash/nor/aduc702x.c b/src/flash/nor/aduc702x.c
index 02270ae..dde4e69 100644
--- a/src/flash/nor/aduc702x.c
+++ b/src/flash/nor/aduc702x.c
@@ -29,20 +29,19 @@
#include <target/algorithm.h>
#include <target/arm.h>
-
static int aduc702x_build_sector_list(struct flash_bank *bank);
-static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms);
+static int aduc702x_check_flash_completion(struct target *target, unsigned int timeout_ms);
static int aduc702x_set_write_enable(struct target *target, int enable);
-#define ADUC702x_FLASH 0xfffff800
-#define ADUC702x_FLASH_FEESTA (0*4)
-#define ADUC702x_FLASH_FEEMOD (1*4)
-#define ADUC702x_FLASH_FEECON (2*4)
-#define ADUC702x_FLASH_FEEDAT (3*4)
-#define ADUC702x_FLASH_FEEADR (4*4)
-#define ADUC702x_FLASH_FEESIGN (5*4)
-#define ADUC702x_FLASH_FEEPRO (6*4)
-#define ADUC702x_FLASH_FEEHIDE (7*4)
+#define ADUC702x_FLASH 0xfffff800
+#define ADUC702x_FLASH_FEESTA (0*4)
+#define ADUC702x_FLASH_FEEMOD (1*4)
+#define ADUC702x_FLASH_FEECON (2*4)
+#define ADUC702x_FLASH_FEEDAT (3*4)
+#define ADUC702x_FLASH_FEEADR (4*4)
+#define ADUC702x_FLASH_FEESIGN (5*4)
+#define ADUC702x_FLASH_FEEPRO (6*4)
+#define ADUC702x_FLASH_FEEHIDE (7*4)
struct aduc702x_flash_bank {
struct working_area *write_algorithm;
@@ -56,33 +55,32 @@ FLASH_BANK_COMMAND_HANDLER(aduc702x_flash_bank_command)
nbank = malloc(sizeof(struct aduc702x_flash_bank));
- bank->base = 0x80000;
- bank->size = 0xF800; // top 4k not accessible
+ bank->base = 0x80000;
+ bank->size = 0xF800; /* top 4k not accessible */
bank->driver_priv = nbank;
- aduc702x_build_sector_list(bank);
+ aduc702x_build_sector_list(bank);
- return ERROR_OK;
+ return ERROR_OK;
}
static int aduc702x_build_sector_list(struct flash_bank *bank)
{
- //aduc7026_struct flash_bank *aduc7026_info = bank->driver_priv;
-
- int i = 0;
- uint32_t offset = 0;
-
- // sector size is 512
- bank->num_sectors = bank->size / 512;
- bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
- for (i = 0; i < bank->num_sectors; ++i)
- {
- bank->sectors[i].offset = offset;
- bank->sectors[i].size = 512;
- offset += bank->sectors[i].size;
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = 0;
- }
+ /* aduc7026_struct flash_bank *aduc7026_info = bank->driver_priv; */
+
+ int i = 0;
+ uint32_t offset = 0;
+
+ /* sector size is 512 */
+ bank->num_sectors = bank->size / 512;
+ bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
+ for (i = 0; i < bank->num_sectors; ++i) {
+ bank->sectors[i].offset = offset;
+ bank->sectors[i].size = 512;
+ offset += bank->sectors[i].size;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = 0;
+ }
return ERROR_OK;
}
@@ -95,13 +93,13 @@ static int aduc702x_protect_check(struct flash_bank *bank)
static int aduc702x_erase(struct flash_bank *bank, int first, int last)
{
- //int res;
+ /* int res; */
int x;
int count;
- //uint32_t v;
+ /* uint32_t v; */
struct target *target = bank->target;
- aduc702x_set_write_enable(target, 1);
+ aduc702x_set_write_enable(target, 1);
/* mass erase */
if (((first | last) == 0) || ((first == 0) && (last >= bank->num_sectors))) {
@@ -110,38 +108,35 @@ static int aduc702x_erase(struct flash_bank *bank, int first, int last)
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, 0xffc3);
target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x06);
- if (aduc702x_check_flash_completion(target, 3500) != ERROR_OK)
- {
+ if (aduc702x_check_flash_completion(target, 3500) != ERROR_OK) {
LOG_ERROR("mass erase failed");
- aduc702x_set_write_enable(target, 0);
+ aduc702x_set_write_enable(target, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
LOG_DEBUG("mass erase successful.");
return ERROR_OK;
} else {
- unsigned long adr;
+ unsigned long adr;
- count = last - first + 1;
- for (x = 0; x < count; ++x)
- {
- adr = bank->base + ((first + x) * 512);
+ count = last - first + 1;
+ for (x = 0; x < count; ++x) {
+ adr = bank->base + ((first + x) * 512);
- target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, adr);
- target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x05);
+ target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, adr);
+ target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x05);
- if (aduc702x_check_flash_completion(target, 50) != ERROR_OK)
- {
- LOG_ERROR("failed to erase sector at address 0x%08lX", adr);
- aduc702x_set_write_enable(target, 0);
- return ERROR_FLASH_SECTOR_NOT_ERASED;
- }
+ if (aduc702x_check_flash_completion(target, 50) != ERROR_OK) {
+ LOG_ERROR("failed to erase sector at address 0x%08lX", adr);
+ aduc702x_set_write_enable(target, 0);
+ return ERROR_FLASH_SECTOR_NOT_ERASED;
+ }
- LOG_DEBUG("erased sector at address 0x%08lX", adr);
- }
- }
+ LOG_DEBUG("erased sector at address 0x%08lX", adr);
+ }
+ }
- aduc702x_set_write_enable(target, 0);
+ aduc702x_set_write_enable(target, 0);
return ERROR_OK;
}
@@ -157,7 +152,10 @@ static int aduc702x_protect(struct flash_bank *bank, int set, int first, int las
*
* Caller should not check for other return values specifically
*/
-static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+static int aduc702x_write_block(struct flash_bank *bank,
+ uint8_t *buffer,
+ uint32_t offset,
+ uint32_t count)
{
struct aduc702x_flash_bank *aduc702x_info = bank->driver_priv;
struct target *target = bank->target;
@@ -168,71 +166,66 @@ static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32
struct arm_algorithm armv4_5_info;
int retval = ERROR_OK;
- if (((count%2)!=0)||((offset%2)!=0))
- {
+ if (((count%2) != 0) || ((offset%2) != 0)) {
LOG_ERROR("write block must be multiple of two bytes in offset & length");
return ERROR_FAIL;
}
- /* parameters:
-
- r0 - address of source data (absolute)
- r1 - number of halfwords to be copied
- r2 - start address in flash (offset from beginning of flash memory)
- r3 - exit code
- r4 - base address of flash controller (0xFFFFF800)
-
- registers:
-
- r5 - scratch
- r6 - set to 2, used to write flash command
-
- */
- static const uint32_t aduc702x_flash_write_code[] = {
- //<_start>:
- 0xe3a05008, // mov r5, #8 ; 0x8
- 0xe5845004, // str r5, [r4, #4]
- 0xe3a06002, // mov r6, #2 ; 0x2
- //<next>:
- 0xe1c421b0, // strh r2, [r4, #16]
- 0xe0d050b2, // ldrh r5, [r0], #2
- 0xe1c450bc, // strh r5, [r4, #12]
- 0xe5c46008, // strb r6, [r4, #8]
- //<wait_complete>:
- 0xe1d430b0, // ldrh r3, [r4]
- 0xe3130004, // tst r3, #4 ; 0x4
- 0x1afffffc, // bne 1001c <wait_complete>
- 0xe2822002, // add r2, r2, #2 ; 0x2
- 0xe2511001, // subs r1, r1, #1 ; 0x1
- 0x0a000001, // beq 1003c <done>
- 0xe3130001, // tst r3, #1 ; 0x1
- 0x1afffff3, // bne 1000c <next>
- //<done>:
- 0xeafffffe // b 1003c <done>
+ /* parameters:
+
+ r0 - address of source data (absolute)
+ r1 - number of halfwords to be copied
+ r2 - start address in flash (offset from beginning of flash memory)
+ r3 - exit code
+ r4 - base address of flash controller (0xFFFFF800)
+
+ registers:
+
+ r5 - scratch
+ r6 - set to 2, used to write flash command
+
+ */
+ static const uint32_t aduc702x_flash_write_code[] = {
+ /* <_start>: */
+ 0xe3a05008, /* mov r5, #8 ; 0x8 */
+ 0xe5845004, /* str r5, [r4, #4] */
+ 0xe3a06002, /* mov r6, #2 ; 0x2 */
+ /* <next>: */
+ 0xe1c421b0, /* strh r2, [r4, #16] */
+ 0xe0d050b2, /* ldrh r5, [r0], #2 */
+ 0xe1c450bc, /* strh r5, [r4, #12] */
+ 0xe5c46008, /* strb r6, [r4, #8] */
+ /* <wait_complete>: */
+ 0xe1d430b0, /* ldrh r3, [r4] */
+ 0xe3130004, /* tst r3, #4 ; 0x4 */
+ 0x1afffffc, /* bne 1001c <wait_complete> */
+ 0xe2822002, /* add r2, r2, #2 ; 0x2 */
+ 0xe2511001, /* subs r1, r1, #1 ; 0x1 */
+ 0x0a000001, /* beq 1003c <done> */
+ 0xe3130001, /* tst r3, #1 ; 0x1 */
+ 0x1afffff3, /* bne 1000c <next> */
+ /* <done>: */
+ 0xeafffffe /* b 1003c <done> */
};
/* flash write code */
if (target_alloc_working_area(target, sizeof(aduc702x_flash_write_code),
- &aduc702x_info->write_algorithm) != ERROR_OK)
- {
+ &aduc702x_info->write_algorithm) != ERROR_OK) {
LOG_WARNING("no working area available, can't do block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- };
+ }
- retval=target_write_buffer(target, aduc702x_info->write_algorithm->address,
- sizeof(aduc702x_flash_write_code), (uint8_t*)aduc702x_flash_write_code);
- if (retval!=ERROR_OK)
- {
+ retval = target_write_buffer(target, aduc702x_info->write_algorithm->address,
+ sizeof(aduc702x_flash_write_code), (uint8_t *)aduc702x_flash_write_code);
+ if (retval != ERROR_OK)
return retval;
- }
/* memory buffer */
- while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK)
- {
+ while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK) {
buffer_size /= 2;
- if (buffer_size <= 256)
- {
- /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
+ if (buffer_size <= 256) {
+ /* if we already allocated the writing code, but failed to get a buffer,
+ *free the algorithm */
if (aduc702x_info->write_algorithm)
target_free_working_area(target, aduc702x_info->write_algorithm);
@@ -251,32 +244,29 @@ static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32
init_reg_param(&reg_params[3], "r3", 32, PARAM_IN);
init_reg_param(&reg_params[4], "r4", 32, PARAM_OUT);
- while (count > 0)
- {
+ while (count > 0) {
uint32_t thisrun_count = (count > buffer_size) ? buffer_size : count;
- retval=target_write_buffer(target, source->address, thisrun_count, buffer);
- if (retval!=ERROR_OK)
- {
+ retval = target_write_buffer(target, source->address, thisrun_count, buffer);
+ if (retval != ERROR_OK)
break;
- }
buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, thisrun_count/2);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[4].value, 0, 32, 0xFFFFF800);
- if ((retval = target_run_algorithm(target, 0, NULL, 5,
- reg_params, aduc702x_info->write_algorithm->address,
- aduc702x_info->write_algorithm->address + sizeof(aduc702x_flash_write_code) - 4,
- 10000, &armv4_5_info)) != ERROR_OK)
- {
+ retval = target_run_algorithm(target, 0, NULL, 5,
+ reg_params, aduc702x_info->write_algorithm->address,
+ aduc702x_info->write_algorithm->address +
+ sizeof(aduc702x_flash_write_code) - 4,
+ 10000, &armv4_5_info);
+ if (retval != ERROR_OK) {
LOG_ERROR("error executing aduc702x flash write algorithm");
break;
}
- if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1)
- {
+ if ((buf_get_u32(reg_params[3].value, 0, 32) & 1) != 1) {
/* FIX!!!! what does this mean??? replace w/sensible error message */
LOG_ERROR("aduc702x detected error writing flash");
retval = ERROR_FAIL;
@@ -302,43 +292,44 @@ static int aduc702x_write_block(struct flash_bank *bank, uint8_t *buffer, uint32
/* All-JTAG, single-access method. Very slow. Used only if there is no
* working area available. */
-static int aduc702x_write_single(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+static int aduc702x_write_single(struct flash_bank *bank,
+ uint8_t *buffer,
+ uint32_t offset,
+ uint32_t count)
{
uint32_t x;
- uint8_t b;
+ uint8_t b;
struct target *target = bank->target;
- aduc702x_set_write_enable(target, 1);
+ aduc702x_set_write_enable(target, 1);
for (x = 0; x < count; x += 2) {
- // FEEADR = address
+ /* FEEADR = address */
target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEADR, offset + x);
- // set up data
- if ((x + 1) == count)
- {
- // last byte
- target_read_u8(target, offset + x + 1, &b);
- }
- else
- b = buffer[x + 1];
+ /* set up data */
+ if ((x + 1) == count) {
+ /* last byte */
+ target_read_u8(target, offset + x + 1, &b);
+ } else
+ b = buffer[x + 1];
- target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, buffer[x] | (b << 8));
+ target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEDAT, buffer[x] | (b << 8));
- // do single-write command
+ /* do single-write command */
target_write_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEECON, 0x02);
- if (aduc702x_check_flash_completion(target, 1) != ERROR_OK)
- {
- LOG_ERROR("single write failed for address 0x%08lX", (unsigned long)(offset + x));
- aduc702x_set_write_enable(target, 0);
+ if (aduc702x_check_flash_completion(target, 1) != ERROR_OK) {
+ LOG_ERROR("single write failed for address 0x%08lX",
+ (unsigned long)(offset + x));
+ aduc702x_set_write_enable(target, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
}
- LOG_DEBUG("wrote %d bytes at address 0x%08lX", (int)count, (unsigned long)(offset + x));
+ LOG_DEBUG("wrote %d bytes at address 0x%08lX", (int)count, (unsigned long)(offset + x));
- aduc702x_set_write_enable(target, 0);
+ aduc702x_set_write_enable(target, 0);
return ERROR_OK;
}
@@ -347,24 +338,23 @@ static int aduc702x_write(struct flash_bank *bank, uint8_t *buffer, uint32_t off
{
int retval;
- /* try using a block write */
- if ((retval = aduc702x_write_block(bank, buffer, offset, count)) != ERROR_OK)
- {
- if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
- {
- /* if block write failed (no sufficient working area),
- * use normal (slow) JTAG method */
- LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
-
- if ((retval = aduc702x_write_single(bank, buffer, offset, count)) != ERROR_OK)
- {
- LOG_ERROR("slow write failed");
- return ERROR_FLASH_OPERATION_FAILED;
- }
- }
- }
-
- return retval;
+ /* try using a block write */
+ retval = aduc702x_write_block(bank, buffer, offset, count);
+ if (retval != ERROR_OK) {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
+ /* if block write failed (no sufficient working area),
+ * use normal (slow) JTAG method */
+ LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
+
+ retval = aduc702x_write_single(bank, buffer, offset, count);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("slow write failed");
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ }
+ }
+
+ return retval;
}
static int aduc702x_probe(struct flash_bank *bank)
@@ -382,10 +372,10 @@ static int aduc702x_info(struct flash_bank *bank, char *buf, int buf_size)
* enable = 1 enables writes & erases, 0 disables them */
static int aduc702x_set_write_enable(struct target *target, int enable)
{
- // don't bother to preserve int enable bit here
- target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEMOD, enable ? 8 : 0);
+ /* don't bother to preserve int enable bit here */
+ target_write_u16(target, ADUC702x_FLASH + ADUC702x_FLASH_FEEMOD, enable ? 8 : 0);
- return ERROR_OK;
+ return ERROR_OK;
}
/* wait up to timeout_ms for controller to not be busy,
@@ -393,22 +383,27 @@ static int aduc702x_set_write_enable(struct target *target, int enable)
*
* this function sleeps 1ms between checks (after the first one),
* so in some cases may slow things down without a usleep after the first read */
-static int aduc702x_check_flash_completion(struct target* target, unsigned int timeout_ms)
+static int aduc702x_check_flash_completion(struct target *target, unsigned int timeout_ms)
{
- uint8_t v = 4;
-
- long long endtime = timeval_ms() + timeout_ms;
- while (1) {
- target_read_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEESTA, &v);
- if ((v & 4) == 0) break;
- alive_sleep(1);
- if (timeval_ms() >= endtime) break;
- }
-
- if (v & 2) return ERROR_FAIL;
- // if a command is ignored, both the success and fail bits may be 0
- else if ((v & 3) == 0) return ERROR_FAIL;
- else return ERROR_OK;
+ uint8_t v = 4;
+
+ long long endtime = timeval_ms() + timeout_ms;
+ while (1) {
+ target_read_u8(target, ADUC702x_FLASH + ADUC702x_FLASH_FEESTA, &v);
+ if ((v & 4) == 0)
+ break;
+ alive_sleep(1);
+ if (timeval_ms() >= endtime)
+ break;
+ }
+
+ if (v & 2)
+ return ERROR_FAIL;
+ /* if a command is ignored, both the success and fail bits may be 0 */
+ else if ((v & 3) == 0)
+ return ERROR_FAIL;
+ else
+ return ERROR_OK;
}
struct flash_driver aduc702x_flash = {
generated by cgit v1.1 at 2024-10-12 21:42:29 +0000