diff options
Diffstat (limited to 'drivers/serial/serial_lpuart.c')
| -rw-r--r-- | drivers/serial/serial_lpuart.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/drivers/serial/serial_lpuart.c b/drivers/serial/serial_lpuart.c index 4b0a964d1b..ccb3ce6701 100644 --- a/drivers/serial/serial_lpuart.c +++ b/drivers/serial/serial_lpuart.c @@ -49,7 +49,7 @@ #define FIFO_RXSIZE_MASK 0x7 #define FIFO_RXSIZE_OFF 0 #define FIFO_TXFE 0x80 -#ifdef CONFIG_ARCH_IMX8 +#if defined(CONFIG_ARCH_IMX8) || defined(CONFIG_ARCH_IMXRT) #define FIFO_RXFE 0x08 #else #define FIFO_RXFE 0x40 @@ -67,7 +67,8 @@ enum lpuart_devtype { DEV_VF610 = 1, DEV_LS1021A, DEV_MX7ULP, - DEV_IMX8 + DEV_IMX8, + DEV_IMXRT, }; struct lpuart_serial_platdata { @@ -409,7 +410,8 @@ static int _lpuart32_serial_init(struct udevice *dev) lpuart_write32(plat->flags, &base->match, 0); - if (plat->devtype == DEV_MX7ULP || plat->devtype == DEV_IMX8) { + if (plat->devtype == DEV_MX7ULP || plat->devtype == DEV_IMX8 || + plat->devtype == DEV_IMXRT) { _lpuart32_serial_setbrg_7ulp(dev, gd->baudrate); } else { /* provide data bits, parity, stop bit, etc */ @@ -426,7 +428,8 @@ static int lpuart_serial_setbrg(struct udevice *dev, int baudrate) struct lpuart_serial_platdata *plat = dev_get_platdata(dev); if (is_lpuart32(dev)) { - if (plat->devtype == DEV_MX7ULP || plat->devtype == DEV_IMX8) + if (plat->devtype == DEV_MX7ULP || plat->devtype == DEV_IMX8 || + plat->devtype == DEV_IMXRT) _lpuart32_serial_setbrg_7ulp(dev, baudrate); else _lpuart32_serial_setbrg(dev, baudrate); @@ -483,6 +486,22 @@ static int lpuart_serial_pending(struct udevice *dev, bool input) static int lpuart_serial_probe(struct udevice *dev) { +#if CONFIG_IS_ENABLED(CLK) + struct clk per_clk; + int ret; + + ret = clk_get_by_name(dev, "per", &per_clk); + if (!ret) { + ret = clk_enable(&per_clk); + if (ret) { + dev_err(dev, "Failed to get per clk: %d\n", ret); + return ret; + } + } else { + dev_warn(dev, "Failed to get per clk: %d\n", ret); + } +#endif + if (is_lpuart32(dev)) return _lpuart32_serial_init(dev); else @@ -514,6 +533,8 @@ static int lpuart_serial_ofdata_to_platdata(struct udevice *dev) plat->devtype = DEV_VF610; else if (!fdt_node_check_compatible(blob, node, "fsl,imx8qm-lpuart")) plat->devtype = DEV_IMX8; + else if (!fdt_node_check_compatible(blob, node, "fsl,imxrt-lpuart")) + plat->devtype = DEV_IMXRT; return 0; } @@ -533,6 +554,8 @@ static const struct udevice_id lpuart_serial_ids[] = { { .compatible = "fsl,vf610-lpuart"}, { .compatible = "fsl,imx8qm-lpuart", .data = LPUART_FLAG_REGMAP_32BIT_REG }, + { .compatible = "fsl,imxrt-lpuart", + .data = LPUART_FLAG_REGMAP_32BIT_REG }, { } }; |