patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 8 Packages Projects Releases Wiki Activity

drivers: serial: uart_rcar: fix reading of SCFRDR register

Browse source 
Fix the read size of the SCFRDR register, which has an 8-bit size
for both Gen3 and Gen4 boards.

Signed-off-by: Mykola Kvach <mykola_kvach@epam.com>
This commit is contained in:
Mykola Kvach 2024-01-09 10:00:59 +02:00 committed by Carles Cufí
parent 833495675a
commit bc90724de4
1 changed files with 7 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/serial/uart_rcar.c
View file

@ -104,6 +104,11 @@ struct uart_rcar_data {
#define SCLSR_TO BIT(2) /* Timeout */
#define SCLSR_ORER BIT(0) /* Overrun Error */
static uint8_t uart_rcar_read_8(const struct device *dev, uint32_t offs)
{
return sys_read8(DEVICE_MMIO_GET(dev) + offs);
}
static void uart_rcar_write_8(const struct device *dev,
uint32_t offs, uint8_t value)
{
@ -146,7 +151,7 @@ static int uart_rcar_poll_in(const struct device *dev, unsigned char *p_char)
goto unlock;
}
*p_char = uart_rcar_read_16(dev, SCFRDR);
*p_char = uart_rcar_read_8(dev, SCFRDR);
reg_val = uart_rcar_read_16(dev, SCFSR);
reg_val &= ~SCFSR_RDF;
@ -347,7 +352,7 @@ static int uart_rcar_fifo_read(const struct device *dev, uint8_t *rx_data,
while (((size - num_rx) > 0) &&
(uart_rcar_read_16(dev, SCFSR) & SCFSR_RDF)) {
/* Receive current byte */
rx_data[num_rx++] = uart_rcar_read_16(dev, SCFRDR);
rx_data[num_rx++] = uart_rcar_read_8(dev, SCFRDR);
reg_val = uart_rcar_read_16(dev, SCFSR);
reg_val &= ~(SCFSR_RDF);