Signed-off-by: Antony Pavlov <[email protected]>
---
drivers/serial/serial_ns16550.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index aa0992f..7130871 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -257,6 +257,30 @@ static __maybe_unused struct ns16550_drvdata omap_drvdata
= {
.linux_console_name = "ttyO",
};
+#define JZ_UART_SHIFT 2
+
+static void jz_serial_reg_write(unsigned int val, unsigned long base,
+ unsigned char reg_offset)
+{
+ switch (reg_offset) {
+ case (fcr << JZ_UART_SHIFT):
+ val |= 0x10; /* Enable uart module */
+ break;
+ case (ier << JZ_UART_SHIFT):
+ val |= (val & 0x4) << 2;
+ break;
+ default:
+ break;
+ }
+
+ writeb(val & 0xff, (void *)(base + reg_offset));
+}
+
+static __maybe_unused struct ns16550_drvdata jz_drvdata = {
+ .init_port = ns16550_serial_init_port,
+ .reg_write = jz_serial_reg_write,
+};
+
/**
* @brief Probe entry point -called on the first match for device
*
@@ -351,6 +375,12 @@ static struct of_device_id ns16550_serial_dt_ids[] = {
.data = (unsigned long)&omap_drvdata,
},
#endif
+#if IS_ENABLED(CONFIG_MACH_MIPS_XBURST)
+ {
+ .compatible = "ingenic,jz4740-uart",
+ .data = (unsigned long)&jz_drvdata,
+ },
+#endif
{
/* sentinel */
},
--
1.9.0
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