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fw: Update flash_write_data() to handle sizes larger than 4096 bytes

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Mikael Ågren 2025-05-15 15:51:27 +02:00
parent 5a9b77806f
commit 53bc2d5fa0
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GPG key ID: E02DA3D397792C46
3 changed files with 20 additions and 11 deletions
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12
hw/application_fpga/fw/tk1/flash.c
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@ -176,7 +176,11 @@ int flash_write_data(uint32_t address, uint8_t *data, size_t size)
return -1; return -1;
} }
if (size <= 0 || size > 4096) { if (size <= 0) {
return -1;
}
if (address % 256 != 0) {
return -1; return -1;
} }
@ -184,6 +188,12 @@ int flash_write_data(uint32_t address, uint8_t *data, size_t size)
uint8_t *p_data = data; uint8_t *p_data = data;
size_t n_bytes = 0; size_t n_bytes = 0;
// Page Program allows 1-256 bytes of a page to be written. A page is
// 256 bytes. Behavior when writing past the end of a page is device
// specific.
//
// We set the address LSByte to 0 and only write 256 bytes or less in
// each transfer.
uint8_t tx_buf[4] = { uint8_t tx_buf[4] = {
PAGE_PROGRAM, /* tx_buf[0] */ PAGE_PROGRAM, /* tx_buf[0] */
(address >> ADDR_BYTE_3_BIT) & 0xFF, /* tx_buf[1] */ (address >> ADDR_BYTE_3_BIT) & 0xFF, /* tx_buf[1] */

12
hw/application_fpga/fw/tk1/preload_app.c
View file

@ -43,12 +43,12 @@ int preload_load(struct partition_table *part_table, uint8_t from_slot)
return ret; return ret;
} }
// preload_store stores chunks of an app in app slot to_slot. data is // preload_store stores chunks of an app in app slot to_slot. data is a buffer
// a buffer of size size (max 4096 bytes) to be written at byte offset // of size size to be written at byte offset in the slot. offset needs to be
// in the slot. offset needs to be kept and updated between each call. // kept and updated between each call. offset must be a multiple of 256.
// //
// When all data has been written call preload_store_finalize() with // When all data has been written call preload_store_finalize() with the last
// the last parameters. // parameters.
// //
// Returns 0 on success. // Returns 0 on success.
int preload_store(struct partition_table *part_table, uint32_t offset, int preload_store(struct partition_table *part_table, uint32_t offset,
@ -77,7 +77,7 @@ int preload_store(struct partition_table *part_table, uint32_t offset,
return -1; return -1;
} }
if (size > 4096) { if (size > SIZE_PRE_LOADED_APP) {
return -1; return -1;
} }

7
hw/application_fpga/fw/tk1/storage.c
View file

@ -213,9 +213,8 @@ int storage_erase_sector(struct partition_table *part_table, uint32_t offset,
return 0; return 0;
} }
// Writes the specified data to the offset inside of the allocated // Writes the specified data to the offset inside of the allocated area.
// area. Assumes area has been erased before hand. Currently only // Assumes area has been erased before hand. Offset must be a multiple of 256.
// handles writes to one sector, hence max size of 4096 bytes.
// //
// Returns zero on success. // Returns zero on success.
int storage_write_data(struct partition_table *part_table, uint32_t offset, int storage_write_data(struct partition_table *part_table, uint32_t offset,
@ -246,7 +245,7 @@ int storage_write_data(struct partition_table *part_table, uint32_t offset,
return -1; return -1;
} }
if (size > 4096) { if (size > SIZE_STORAGE_AREA) {
return -1; return -1;
} }