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bios: litespi: clear rx queue after write Beta #2101

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bios: litespi: clear rx queue after write Beta #2101

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63fa4fd
bios: litespi: clear rx queue after write
maass-hamburg Oct 24, 2024
d7bf75a
bios: litespi: add newline to debug output
maass-hamburg Oct 24, 2024
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7 changes: 5 additions & 2 deletions litex/soc/software/liblitespi/spiflash.c
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,9 @@ static void spiflash_master_write(uint32_t val, size_t len, size_t width, uint32
spiflash_core_master_rxtx_write(val);
while (!spiflash_rx_ready());

/* Clear RX queue. */
spiflash_core_master_rxtx_read();

/* Clear CS. */
spiflash_core_master_cs_write(0);
}
Expand Down Expand Up @@ -153,7 +156,7 @@ static uint32_t spiflash_read_id_register(void)
transfer_cmd(w_buf, buf, 4);

#ifdef SPIFLASH_DEBUG
printf("[ID: %02x %02x %02x %02x]", buf[0], buf[1], buf[2], buf[3]);
printf("[ID: %02x %02x %02x %02x]\n", buf[0], buf[1], buf[2], buf[3]);
#endif

/* FIXME normally the status should be in buf[1],
Expand All @@ -170,7 +173,7 @@ static uint32_t spiflash_read_status_register(void)
transfer_cmd(w_buf, buf, 4);

#ifdef SPIFLASH_DEBUG
printf("[SR: %02x %02x %02x %02x]", buf[0], buf[1], buf[2], buf[3]);
printf("[SR: %02x %02x %02x %02x]\n", buf[0], buf[1], buf[2], buf[3]);
#endif

/* FIXME normally the status should be in buf[1],
Expand Down
3 changes: 3 additions & 0 deletions litex/soc/software/liblitespi/spiram.c
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,9 @@ static void spiram_master_write(uint32_t val, size_t len, size_t width, uint32_t
spiram_core_master_rxtx_write(val);
while (!spiram_rx_ready());

/* Clear RX queue. */
spiflash_core_master_rxtx_read();

/* Clear CS. */
spiram_core_master_cs_write(0);
}
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