2 * On-chip UART initializaion for low-level debugging
4 * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
6 * SPDX-License-Identifier: GPL-2.0+
9 #include <linux/linkage.h>
10 #include <mach/bcu-regs.h>
11 #include <mach/sc-regs.h>
12 #include <mach/sg-regs.h>
14 #define UART_CLK 36864000
15 #include <mach/debug-uart.S>
17 ENTRY(setup_lowlevel_debug)
18 sg_set_pinsel 63, 0, 4, 4, r0, r1
19 sg_set_pinsel 64, 1, 4, 4, r0, r1
27 orr r1, r1, #SC_CLKCTRL_CEN_PERI
30 init_debug_uart r0, r1, r2
33 ENDPROC(setup_lowlevel_debug)