diff options
| author | Tom Rini <[email protected]> | 2025-10-17 18:07:06 -0600 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-10-17 18:07:06 -0600 |
| commit | 64a4645c4e4f54d4e67d2954ed20b9e1af389530 (patch) | |
| tree | 220a6ffc7811a403797f5e0fa4140cfbe0a644f3 /drivers/serial | |
| parent | 5340dc6fe75b5ffde3afe91c01bd8551b3cb8182 (diff) | |
| parent | b9efaf6729d06df94ded46710725746a41eaf0fc (diff) | |
Merge branch 'master' of https://source.denx.de/u-boot/custodians/u-boot-sh
SH HSCIF FIFO fixes, R-Car V4H/V4M DT corrections, R-Car V4H Sparrow
Hawk PCIe shutdown support before booting Linux.
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_sh.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index e4cc4ee4260..7ab62e0e90b 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -112,7 +112,16 @@ static int serial_raw_putc(struct uart_port *port, const char c) static int serial_rx_fifo_level(struct uart_port *port) { - return scif_rxfill(port); + int ret; + + ret = scif_rxfill(port); + if (ret) + return ret; + + if (sci_in(port, SCxSR) & SCxSR_RDxF(port)) + return 1; + + return 0; } static int sh_serial_tstc_generic(struct uart_port *port) |