ARC: nSIM_700: switch to DW UART usage

Switch nsim_700_defconfig to dwuart for consistent uart settings
for all nSIM configurations.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/boot/dts/nsim_700.dts b/arch/arc/boot/dts/nsim_700.dts
index 63dbaab1247d4860908f4511597724da7319d219..ae9bc21fe11b8ff7e8516afd53c4ff889b453768 100644 (file)
--- a/arch/arc/boot/dts/nsim_700.dts
+++ b/arch/arc/boot/dts/nsim_700.dts
@@ -14,11 +14,11 @@ / {
        interrupt-parent = <&core_intc>;
 
        chosen {
-               bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 print-fatal-signals=1";
+               bootargs = "earlycon=uart8250,mmio32,0xf0000000,115200n8 console=ttyS0,115200n8 print-fatal-signals=1";
        };
 
        aliases {
-               serial0 = &arcuart0;
+               serial0 = &uart0;
        };
 
        fpga {
@@ -41,13 +41,15 @@ core_intc: interrupt-controller {
                        #interrupt-cells = <1>;
                };
 
-               arcuart0: serial@c0fc1000 {
-                       compatible = "snps,arc-uart";
-                       reg = <0xc0fc1000 0x100>;
-                       interrupts = <5>;
-                       clock-frequency = <80000000>;
-                       current-speed = <115200>;
-                       status = "okay";
+               uart0: serial@f0000000 {
+                       compatible = "ns16550a";
+                       reg = <0xf0000000 0x2000>;
+                       interrupts = <24>;
+                       clock-frequency = <50000000>;
+                       baud = <115200>;
+                       reg-shift = <2>;
+                       reg-io-width = <4>;
+                       no-loopback-test = <1>;
                };
 
                ethernet@c0fc2000 {

diff --git a/arch/arc/configs/nsim_700_defconfig b/arch/arc/configs/nsim_700_defconfig
index 9b2653b0b3491d848aba14b9d2e2bcbeba64a2b2..5c488140f53751be65889b4f8836d0a8470963dc 100644 (file)
--- a/arch/arc/configs/nsim_700_defconfig
+++ b/arch/arc/configs/nsim_700_defconfig
@@ -41,8 +41,12 @@ CONFIG_LXT_PHY=y
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO is not set
 # CONFIG_LEGACY_PTYS is not set
-CONFIG_SERIAL_ARC=y
-CONFIG_SERIAL_ARC_CONSOLE=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+CONFIG_SERIAL_8250_DW=y
+CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
 # CONFIG_HID is not set