@@ -571,11 +571,14 @@ lqspi_read(void *opaque, hwaddr addr, unsigned int size)
DB_PRINT_L(0, "starting QSPI data read\n");
- for (i = 0; i < LQSPI_CACHE_SIZE / 4; ++i) {
- tx_data_bytes(s, 0, 4);
+ while (cache_entry < LQSPI_CACHE_SIZE / 4) {
+ for (i = 0; i < 16; ++i) {
+ tx_data_bytes(s, 0, 4);
+ }
xilinx_spips_flush_txfifo(s);
- rx_data_bytes(s, &q->lqspi_buf[cache_entry], 4);
- cache_entry++;
+ for (i = 0; i < 16; ++i) {
+ rx_data_bytes(s, &q->lqspi_buf[cache_entry++], 4);
+ }
}
s->regs[R_CONFIG] |= CS;
Do 16 words per fifo flush. Increases performance and decreases debug verbosity. This data depth has no real hardware analogue, so just go with something that has reasonable performance. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> --- hw/xilinx_spips.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-)