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Message-Id: <1408459715-10151-5-git-send-email-daniel.thompson@linaro.org> Date: Tue, 19 Aug 2014 15:48:30 +0100 From: Daniel Thompson <daniel.thompson@...aro.org> To: Russell King <linux@....linux.org.uk> Cc: Daniel Thompson <daniel.thompson@...aro.org>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, spear-devel@...t.st.com, Arnd Bergmann <arnd@...db.de>, Paul Bolle <pebolle@...cali.nl>, patches@...aro.org, linaro-kernel@...ts.linaro.org, Greg Ungerer <gerg@...inux.org>, Arnd Bergmann <arnd.bergmann@...aro.org> Subject: [PATCH v8 4/9] arm: 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. Note that, in order to keep oldconfig working nicely we must defer the removal of arch/arm/mach-ks8695/include/mach/debug-macro.S until DEBUG_LL_UART_NONE has been removed. Signed-off-by: Daniel Thompson <daniel.thompson@...aro.org> Cc: Russell King <linux@....linux.org.uk> Cc: Greg Ungerer <gerg@...inux.org> Cc: Arnd Bergmann <arnd.bergmann@...aro.org> --- arch/arm/Kconfig.debug | 8 +++++ arch/arm/include/debug/ks8695.S | 40 +++++++++++++++++++++++++ arch/arm/mach-ks8695/include/mach/debug-macro.S | 36 ---------------------- 3 files changed, 48 insertions(+), 36 deletions(-) create mode 100644 arch/arm/include/debug/ks8695.S delete mode 100644 arch/arm/mach-ks8695/include/mach/debug-macro.S diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 9c46729..97c3058 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -348,6 +348,13 @@ 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_MMP_UART2 bool "Kernel low-level debugging message via MMP UART2" depends on ARCH_MMP @@ -1017,6 +1024,7 @@ 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/s3c24xx.S" if DEBUG_S3C24XX_UART diff --git a/arch/arm/include/debug/ks8695.S b/arch/arm/include/debug/ks8695.S new file mode 100644 index 0000000..961da1f --- /dev/null +++ b/arch/arm/include/debug/ks8695.S @@ -0,0 +1,40 @@ +/* + * arch/arm/include/debug/ks8695.S + * + * Copyright (C) 2006 Ben Dooks <ben@...tec.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 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 a79e489..0000000 --- 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 <ben@...tec.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. - */ - -#include <mach/hardware.h> -#include <mach/regs-uart.h> - - .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 -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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