From: Daniel Thompson Date: Fri, 9 Jan 2015 17:33:36 +0000 (+0100) Subject: ARM: 8270/1: ks8695: Migrate debug_ll macros to shared directory X-Git-Tag: firefly_0821_release~176^2~2346^2~6 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=abbfb21efcd704e8b858e94e327bb014386ba0dd;p=firefly-linux-kernel-4.4.55.git ARM: 8270/1: ks8695: Migrate debug_ll macros to shared directory 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 Cc: Greg Ungerer Cc: Arnd Bergmann Signed-off-by: Russell King --- diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 6ee9b0d361ee..eba36e35bad2 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -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 diff --git a/arch/arm/include/debug/ks8695.S b/arch/arm/include/debug/ks8695.S new file mode 100644 index 000000000000..961da1f32ab3 --- /dev/null +++ b/arch/arm/include/debug/ks8695.S @@ -0,0 +1,40 @@ +/* + * arch/arm/include/debug/ks8695.S + * + * Copyright (C) 2006 Ben Dooks + * 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 diff --git a/arch/arm/mach-ks8695/include/mach/debug-macro.S b/arch/arm/mach-ks8695/include/mach/debug-macro.S deleted file mode 100644 index a79e48981202..000000000000 --- a/arch/arm/mach-ks8695/include/mach/debug-macro.S +++ /dev/null @@ -1,36 +0,0 @@ -/* - * arch/arm/mach-ks8695/include/mach/debug-macro.S - * - * Copyright (C) 2006 Ben Dooks - * 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. - */ - -#include -#include - - .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