From 9eb7acef97d1a892d59c5928001dd9516bb592de Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Fri, 27 Feb 2015 02:26:43 +0900 Subject: ARM: UniPhier: move SoC headers to mach-uniphier/include/mach Move arch/arm/include/asm/arch-uniphier/* -> arch/arm/mach-uniphier/include/mach/* Signed-off-by: Masahiro Yamada --- arch/arm/mach-uniphier/include/mach/debug-uart.S | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 arch/arm/mach-uniphier/include/mach/debug-uart.S (limited to 'arch/arm/mach-uniphier/include/mach/debug-uart.S') diff --git a/arch/arm/mach-uniphier/include/mach/debug-uart.S b/arch/arm/mach-uniphier/include/mach/debug-uart.S new file mode 100644 index 0000000000..af55feed04 --- /dev/null +++ b/arch/arm/mach-uniphier/include/mach/debug-uart.S @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2014 Panasonic Corporation + * Author: Masahiro Yamada + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +#if !defined(CONFIG_DEBUG_SEMIHOSTING) +#include CONFIG_DEBUG_LL_INCLUDE +#endif + +#define BAUDRATE 115200 +#define DIV_ROUND(x, d) (((x) + ((d) / 2)) / (d)) +#define DIVISOR DIV_ROUND(UART_CLK, 16 * BAUDRATE) + + .macro init_debug_uart, ra, rb, rc + addruart \ra, \rb, \rc + mov \rb, #UART_LCR_WLEN8 + strb \rb, [\ra, #0x11] + ldr \rb, =DIVISOR + str \rb, [\ra, #0x24] + .endm -- cgit