Note: Resending after learning how to use git send-email, please disregard
previous message.
This fixes the riscv fe310 console driver fe310_uart_read function. The function
reads the RX status/data register to check if data is available, but discards
the data and reads it a seconds time.
Also cleared the interrupt enable bit in the first_open function.
Close #4719
---
bsps/riscv/riscv/console/fe310-uart.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/bsps/riscv/riscv/console/fe310-uart.c
b/bsps/riscv/riscv/console/fe310-uart.c
index 4ae62d7176..506521add0 100644
--- a/bsps/riscv/riscv/console/fe310-uart.c
+++ b/bsps/riscv/riscv/console/fe310-uart.c
@@ -34,11 +34,13 @@
int fe310_uart_read(rtems_termios_device_context *base)
{
fe310_uart_context * ctx = (fe310_uart_context*) base;
+ int32_t rxdata;
- if ((ctx->regs->rxdata & TXRXREADY) != 0) {
+ rxdata = ctx->regs->rxdata;
+ if ((rxdata & TXRXREADY) != 0) {
return -1;
} else {
- return ctx->regs->rxdata;
+ return rxdata & 0xFF;
}
}
@@ -91,6 +93,7 @@ static bool fe310_uart_first_open (
(ctx->regs)->div = riscv_get_core_frequency() / 115200 - 1;
(ctx->regs)->txctrl |= 1;
(ctx->regs)->rxctrl |= 1;
+ (ctx->regs)->ie = 0;
return true;
};
--
2.34.1
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