From mboxrd@z Thu Jan 1 00:00:00 1970 From: haojian.zhuang@linaro.org (Haojian Zhuang) Date: Tue, 4 Jun 2013 23:05:12 +0800 Subject: [PATCH v2 1/6] ARM: debug: support debug ll on hisilicon soc In-Reply-To: <1370358317-12768-1-git-send-email-haojian.zhuang@linaro.org> References: <1370358317-12768-1-git-send-email-haojian.zhuang@linaro.org> Message-ID: <1370358317-12768-2-git-send-email-haojian.zhuang@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Support UART0 debug ll on hisilicon Hi3620 SoC. Signed-off-by: Haojian Zhuang --- arch/arm/Kconfig.debug | 15 +++++++++++++++ arch/arm/include/debug/hisilicon.S | 30 ++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) create mode 100644 arch/arm/include/debug/hisilicon.S diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 1d41908..7396572 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -251,6 +251,20 @@ choice Say Y here if you want kernel low-level debugging support on i.MX6Q/DL. + config DEBUG_HI3620_UART + bool "Hisilicon HI3620 Debug UART" + depends on ARCH_HI3xxx + help + Say Y here if you want kernel low-level debugging support + on HI3620 UART. + + config DEBUG_HI3716_UART + bool "Hisilicon Hi3716 Debug UART" + depends on ARCH_HI3xxx + help + Say Y here if you want kernel low-level debugging support + on HI3716 UART. + config DEBUG_MMP_UART2 bool "Kernel low-level debugging message via MMP UART2" depends on ARCH_MMP @@ -623,6 +637,7 @@ config DEBUG_LL_INCLUDE default "debug/cns3xxx.S" if DEBUG_CNS3XXX default "debug/exynos.S" if DEBUG_EXYNOS_UART default "debug/highbank.S" if DEBUG_HIGHBANK_UART + default "debug/hisilicon.S" if DEBUG_HI3620_UART || DEBUG_HI3716_UART default "debug/icedcc.S" if DEBUG_ICEDCC default "debug/imx.S" if DEBUG_IMX1_UART || \ DEBUG_IMX25_UART || \ diff --git a/arch/arm/include/debug/hisilicon.S b/arch/arm/include/debug/hisilicon.S new file mode 100644 index 0000000..47ad019 --- /dev/null +++ b/arch/arm/include/debug/hisilicon.S @@ -0,0 +1,30 @@ +/* + * Early serial output macro for Hisilicon SoC + * + * Copyright (C) 2012-2013 Hisilicon Technologies Co., Ltd. + * Copyright (C) 2012-2013 Linaro Ltd. + * + * Author: Haojian Zhuang + * + * 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. +*/ + +#if defined(CONFIG_DEBUG_HI3620_UART) +#define HS_UART_PHYS_BASE 0xfcb00000 +#define HS_UART_VIRT_BASE 0xfeb00000 +#elif defined(CONFIG_DEBUG_HI3716_UART) +#define HS_UART_PHYS_BASE 0xf8b00000 +#define HS_UART_VIRT_BASE 0xfeb00000 +#endif + +#if defined(CONFIG_DEBUG_HI3620_UART) || defined(CONFIG_DEBUG_HI3716_UART) + .macro addruart,rp,rv,tmp + ldr \rp, =HS_UART_PHYS_BASE + ldr \rv, =HS_UART_VIRT_BASE + .endm + +#include + +#endif -- 1.8.1.2