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Diffstat (limited to 'roms/opensbi/lib/utils/serial/fdt_serial_uart8250.c')
-rw-r--r--roms/opensbi/lib/utils/serial/fdt_serial_uart8250.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/roms/opensbi/lib/utils/serial/fdt_serial_uart8250.c b/roms/opensbi/lib/utils/serial/fdt_serial_uart8250.c
new file mode 100644
index 000000000..5030b823a
--- /dev/null
+++ b/roms/opensbi/lib/utils/serial/fdt_serial_uart8250.c
@@ -0,0 +1,39 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2020 Western Digital Corporation or its affiliates.
+ *
+ * Authors:
+ * Anup Patel <anup.patel@wdc.com>
+ */
+
+#include <sbi_utils/fdt/fdt_helper.h>
+#include <sbi_utils/serial/fdt_serial.h>
+#include <sbi_utils/serial/uart8250.h>
+
+static int serial_uart8250_init(void *fdt, int nodeoff,
+ const struct fdt_match *match)
+{
+ int rc;
+ struct platform_uart_data uart;
+
+ rc = fdt_parse_uart8250_node(fdt, nodeoff, &uart);
+ if (rc)
+ return rc;
+
+ return uart8250_init(uart.addr, uart.freq, uart.baud,
+ uart.reg_shift, uart.reg_io_width);
+}
+
+static const struct fdt_match serial_uart8250_match[] = {
+ { .compatible = "ns16550" },
+ { .compatible = "ns16550a" },
+ { },
+};
+
+struct fdt_serial fdt_serial_uart8250 = {
+ .match_table = serial_uart8250_match,
+ .init = serial_uart8250_init,
+ .getc = uart8250_getc,
+ .putc = uart8250_putc
+};