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bios/boot: remove SFL_CMD_LOAD_NO_CRC support (non longer useful since CRC checking is now fast).

This commit is contained in:
Florent Kermarrec 2020-12-03 12:11:48 +01:00
parent 136db6a0ca
commit 172dc18dfb
2 changed files with 12 additions and 16 deletions
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27
litex/soc/software/bios/boot.c
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@ -189,20 +189,18 @@ int serialboot(void)
frame.payload[i] = uart_read(); frame.payload[i] = uart_read();
/* Check Frame CRC (if CMD has a CRC) */ /* Check Frame CRC (if CMD has a CRC) */
if (frame.cmd != SFL_CMD_LOAD_NO_CRC) { actualcrc = ((int)frame.crc[0] << 8)|(int)frame.crc[1];
actualcrc = ((int)frame.crc[0] << 8)|(int)frame.crc[1]; goodcrc = crc16(&frame.cmd, frame.payload_length+1);
goodcrc = crc16(&frame.cmd, frame.payload_length+1); if(actualcrc != goodcrc) {
if(actualcrc != goodcrc) { /* Clear out the RX buffer */
/* Clear out the RX buffer */ while (uart_read_nonblock()) uart_read();
while (uart_read_nonblock()) uart_read(); failed++;
failed++; if(failed == MAX_FAILED) {
if(failed == MAX_FAILED) { printf("Too many consecutive errors, aborting");
printf("Too many consecutive errors, aborting"); return 1;
return 1;
}
uart_write(SFL_ACK_CRCERROR);
continue;
} }
uart_write(SFL_ACK_CRCERROR);
continue;
} }
/* Execute Frame CMD */ /* Execute Frame CMD */
@ -211,8 +209,7 @@ int serialboot(void)
failed = 0; failed = 0;
uart_write(SFL_ACK_SUCCESS); uart_write(SFL_ACK_SUCCESS);
return 1; return 1;
case SFL_CMD_LOAD: case SFL_CMD_LOAD: {
case SFL_CMD_LOAD_NO_CRC: {
char *writepointer; char *writepointer;
failed = 0; failed = 0;

1
litex/soc/software/bios/sfl.h
View File

@ -19,7 +19,6 @@ struct sfl_frame {
#define SFL_CMD_ABORT 0x00 #define SFL_CMD_ABORT 0x00
#define SFL_CMD_LOAD 0x01 #define SFL_CMD_LOAD 0x01
#define SFL_CMD_JUMP 0x02 #define SFL_CMD_JUMP 0x02
#define SFL_CMD_LOAD_NO_CRC 0x03
#define SFL_CMD_FLASH 0x04 #define SFL_CMD_FLASH 0x04
#define SFL_CMD_REBOOT 0x05 #define SFL_CMD_REBOOT 0x05