diff options
| author | Emanuele Ghidoli <[email protected]> | 2026-05-28 15:49:06 +0200 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2026-06-10 14:49:55 -0600 |
| commit | e65a87e959166e250a486b67ca23270272741643 (patch) | |
| tree | b87484adca7e97022743b98dae2409a9fbe409c0 | |
| parent | 6c636eabbde7f7915fe37c84395b23c61c66ce64 (diff) | |
serial: lpuart: Fix RX FIFO Enable bitmask
The Receive FIFO Enable (RXFE) field in the LPUART FIFO register is
bit 3 on all supported architectures. The define has been wrong since
it was introduced: for non-i.MX8/i.MXRT it set bit 6, which on LS102xA
is read-only-as-zero, so the bug went unnoticed.
NXP confirmed bit 3 is correct everywhere, so drop the ARCH-based
selection.
Link: https://github.com/nxp-imx/uboot-imx/commit/9498bcc514737269bb0ca436f775460741ab8199
Link: https://lore.kernel.org/u-boot/[email protected]/
Fixes: 6209e14cb026 ("serial: lpuart: add 32-bit registers lpuart support")
Signed-off-by: Emanuele Ghidoli <[email protected]>
Reviewed-by: Francesco Dolcini <[email protected]>
Reviewed-by: Sébastien Szymanski <[email protected]>
| -rw-r--r-- | drivers/serial/serial_lpuart.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 9fdb6503085..3f5fadfc80a 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -53,11 +53,7 @@ #define FIFO_RXSIZE_MASK 0x7 #define FIFO_RXSIZE_OFF 0 #define FIFO_TXFE 0x80 -#if defined(CONFIG_ARCH_IMX8) || defined(CONFIG_ARCH_IMXRT) #define FIFO_RXFE 0x08 -#else -#define FIFO_RXFE 0x40 -#endif #define WATER_TXWATER_OFF 0 #define WATER_RXWATER_OFF 16 |