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ARM: 8270/1: ks8695: Migrate debug_ll macros to shared directory

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As part of the migration a couple of uart definitions have been copied
from of the platform specific header files.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Arnd Bergmann <arnd.bergmann@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Daniel Thompson 2015-01-09 18:33:36 +01:00 • committed by Russell King
commit abbfb21efc
2 changed files with 15 additions and 3 deletions
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8
arch/arm/Kconfig.debug
View file

@ -397,6 +397,13 @@ choice
Say Y here if you want the debug print routines to direct
their output to UART1 serial port on KEYSTONE2 devices.
config DEBUG_KS8695_UART
bool "KS8695 Debug UART"
depends on ARCH_KS8695
help
Say Y here if you want kernel low-level debugging support
on KS8695.
config DEBUG_MESON_UARTAO
bool "Kernel low-level debugging via Meson6 UARTAO"
depends on ARCH_MESON
@ -1174,6 +1181,7 @@ config DEBUG_LL_INCLUDE
DEBUG_IMX6Q_UART || \
DEBUG_IMX6SL_UART || \
DEBUG_IMX6SX_UART
default "debug/ks8695.S" if DEBUG_KS8695_UART
default "debug/msm.S" if DEBUG_MSM_UART || DEBUG_QCOM_UARTDM
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
default "debug/renesas-scif.S" if DEBUG_R7S72100_SCIF2

40
arch/arm/include/debug/ks8695.S Normal file
View file

@ -0,0 +1,40 @@
/*
* arch/arm/include/debug/ks8695.S
*
* Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
* Copyright (C) 2006 Simtec Electronics
*
* KS8695 - Debug macros
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#define KS8695_UART_PA 0x03ffe000
#define KS8695_UART_VA 0xf00fe000
#define KS8695_URTH (0x04)
#define KS8695_URLS (0x14)
#define URLS_URTE (1 << 6)
#define URLS_URTHRE (1 << 5)
.macro addruart, rp, rv, tmp
ldr \rp, =KS8695_UART_PA @ physical base address
ldr \rv, =KS8695_UART_VA @ virtual base address
.endm
.macro senduart, rd, rx
str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register
.endm
.macro busyuart, rd, rx
1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register
tst \rd, #URLS_URTE @ Holding & Shift registers empty?
beq 1001b
.endm
.macro waituart, rd, rx
1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register
tst \rd, #URLS_URTHRE @ Holding Register empty?
beq 1001b
.endm