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https://github.com/brain-hackers/u-boot-brain
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12a70e3c96
For the same reason as commit d0c47b3ef7 (serial: UniPhier: use
32 bit register access), use "str" instead of "strb" for the LCR
register setting.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
24 lines
532 B
ArmAsm
24 lines
532 B
ArmAsm
/*
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* Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <linux/serial_reg.h>
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#if !defined(CONFIG_DEBUG_SEMIHOSTING)
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#include CONFIG_DEBUG_LL_INCLUDE
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#endif
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#define BAUDRATE 115200
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#define DIV_ROUND(x, d) (((x) + ((d) / 2)) / (d))
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#define DIVISOR DIV_ROUND(UART_CLK, 16 * BAUDRATE)
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.macro init_debug_uart, ra, rb, rc
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addruart \ra, \rb, \rc
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mov \rb, #UART_LCR_WLEN8 << 8
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str \rb, [\ra, #0x10]
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ldr \rb, =DIVISOR
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str \rb, [\ra, #0x24]
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.endm
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