#define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */
#define UFCR_RFDIV (7<<7) /* Reference freq divider mask */
#define UFCR_RFDIV_SHF 7 /* Reference freq divider shift */
+#define UFCR_DCEDTE (1<<6) /* DTE mode select */
#define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */
#define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */
#define USR1_RTSS (1<<14) /* RTS pin status */
#define UTS_RXFULL (1<<3) /* RxFIFO full */
#define UTS_SOFTRST (1<<0) /* Software reset */
+DECLARE_GLOBAL_DATA_PTR;
+
#ifndef CONFIG_DM_SERIAL
#ifndef CONFIG_MXC_UART_BASE
#define UBRC 0xac /* Baud Rate Count Register */
#define UTS 0xb4 /* UART Test Register (mx31) */
-DECLARE_GLOBAL_DATA_PTR;
-
#define TXTL 2 /* reset default */
#define RXTL 1 /* reset default */
#define RFDIV 4 /* divide input clock by 2 */
static void mxc_serial_putc(const char c)
{
+ /* If \n, also do \r */
+ if (c == '\n')
+ serial_putc('\r');
+
__REG(UART_PHYS + UTXD) = c;
/* wait for transmitter to be ready */
while (!(__REG(UART_PHYS + UTS) & UTS_TXEMPTY))
WATCHDOG_RESET();
-
- /* If \n, also do \r */
- if (c == '\n')
- serial_putc ('\r');
}
/*
struct mxc_serial_platdata *plat = dev->platdata;
struct mxc_uart *const uart = plat->reg;
u32 clk = imx_get_uartclk();
+ u32 tmp;
+
+ tmp = 4 << UFCR_RFDIV_SHF;
+ if (plat->use_dte)
+ tmp |= UFCR_DCEDTE;
+ writel(tmp, &uart->fcr);
- writel(4 << 7, &uart->fcr); /* divide input clock by 2 */
writel(0xf, &uart->bir);
writel(clk / (2 * baudrate), &uart->bmr);
.setbrg = mxc_serial_setbrg,
};
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+static int mxc_serial_ofdata_to_platdata(struct udevice *dev)
+{
+ struct mxc_serial_platdata *plat = dev->platdata;
+ fdt_addr_t addr;
+
+ addr = dev_get_addr(dev);
+ if (addr == FDT_ADDR_T_NONE)
+ return -EINVAL;
+
+ plat->reg = (struct mxc_uart *)addr;
+
+ plat->use_dte = fdtdec_get_bool(gd->fdt_blob, dev_of_offset(dev),
+ "fsl,dte-mode");
+ return 0;
+}
+
+static const struct udevice_id mxc_serial_ids[] = {
+ { .compatible = "fsl,imx6ul-uart" },
+ { .compatible = "fsl,imx7d-uart" },
+ { }
+};
+#endif
+
U_BOOT_DRIVER(serial_mxc) = {
.name = "serial_mxc",
.id = UCLASS_SERIAL,
+#if CONFIG_IS_ENABLED(OF_CONTROL)
+ .of_match = mxc_serial_ids,
+ .ofdata_to_platdata = mxc_serial_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct mxc_serial_platdata),
+#endif
.probe = mxc_serial_probe,
.ops = &mxc_serial_ops,
.flags = DM_FLAG_PRE_RELOC,