v4.19.13 snapshot.
diff --git a/arch/mips/bcm63xx/dev-uart.c b/arch/mips/bcm63xx/dev-uart.c
new file mode 100644
index 0000000..3bc7f3b
--- /dev/null
+++ b/arch/mips/bcm63xx/dev-uart.c
@@ -0,0 +1,76 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <bcm63xx_cpu.h>
+
+static struct resource uart0_resources[] = {
+ {
+ /* start & end filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* start filled at runtime */
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct resource uart1_resources[] = {
+ {
+ /* start & end filled at runtime */
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ /* start filled at runtime */
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device bcm63xx_uart_devices[] = {
+ {
+ .name = "bcm63xx_uart",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(uart0_resources),
+ .resource = uart0_resources,
+ },
+
+ {
+ .name = "bcm63xx_uart",
+ .id = 1,
+ .num_resources = ARRAY_SIZE(uart1_resources),
+ .resource = uart1_resources,
+ }
+};
+
+int __init bcm63xx_uart_register(unsigned int id)
+{
+ if (id >= ARRAY_SIZE(bcm63xx_uart_devices))
+ return -ENODEV;
+
+ if (id == 1 && (!BCMCPU_IS_3368() && !BCMCPU_IS_6358() &&
+ !BCMCPU_IS_6368()))
+ return -ENODEV;
+
+ if (id == 0) {
+ uart0_resources[0].start = bcm63xx_regset_address(RSET_UART0);
+ uart0_resources[0].end = uart0_resources[0].start +
+ RSET_UART_SIZE - 1;
+ uart0_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
+ }
+
+ if (id == 1) {
+ uart1_resources[0].start = bcm63xx_regset_address(RSET_UART1);
+ uart1_resources[0].end = uart1_resources[0].start +
+ RSET_UART_SIZE - 1;
+ uart1_resources[1].start = bcm63xx_get_irq_number(IRQ_UART1);
+ }
+
+ return platform_device_register(&bcm63xx_uart_devices[id]);
+}