From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Wed, 11 Nov 2009 19:02:19 -0800 Subject: [PATCH 02/10] omap: introduce OMAP_LL_DEBUG_NONE DEBUG_LL config In-Reply-To: <20091112025802.5159.97598.stgit@localhost> References: <20091112025802.5159.97598.stgit@localhost> Message-ID: <20091112030219.5159.99104.stgit@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: vikram pandita Zoom2/Zoom3 kind of boards do not use omap uarts for console. These use external debug board for console. So these boards should not have "Uncompressing Kernel...." log put on omap uarts. By interoducing OMAP_LL_DEBUG_NONE option, unnecessary writes to omap uarts is avoided. In future, the DEBUG_LL interface will be enhanced to use external debug board. Signed-off-by: Vikram Pandita Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/Kconfig | 5 ++++- arch/arm/plat-omap/include/plat/uncompress.h | 6 +++++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 64b3f52..f348ddf 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -165,7 +165,7 @@ config OMAP_DM_TIMER choice prompt "Low-level debug console UART" depends on ARCH_OMAP - default OMAP_LL_DEBUG_UART1 + default OMAP_LL_DEBUG_NONE config OMAP_LL_DEBUG_UART1 bool "UART1" @@ -176,6 +176,9 @@ config OMAP_LL_DEBUG_UART2 config OMAP_LL_DEBUG_UART3 bool "UART3" +config OMAP_LL_DEBUG_NONE + bool "None" + endchoice config OMAP_SERIAL_WAKE diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h index e22f575..13c305d 100644 --- a/arch/arm/plat-omap/include/plat/uncompress.h +++ b/arch/arm/plat-omap/include/plat/uncompress.h @@ -44,8 +44,12 @@ static void putc(int c) uart = (volatile u8 *)(OMAP_UART3_BASE); #elif defined(CONFIG_OMAP_LL_DEBUG_UART2) uart = (volatile u8 *)(OMAP_UART2_BASE); -#else +#elif defined(CONFIG_OMAP_LL_DEBUG_UART1) uart = (volatile u8 *)(OMAP_UART1_BASE); +#elif defined(CONFIG_OMAP_LL_DEBUG_NONE) + return; +#else + return; #endif #ifdef CONFIG_ARCH_OMAP1