Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756252Ab2BWObD (ORCPT ); Thu, 23 Feb 2012 09:31:03 -0500 Received: from newsmtp5.atmel.com ([204.2.163.5]:46878 "EHLO sjogate2.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756097Ab2BWO02 (ORCPT ); Thu, 23 Feb 2012 09:26:28 -0500 From: Nicolas Ferre To: plagnioj@jcrosoft.com, linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, rmallon@gmail.com, linux@arm.linux.org.uk, arnd@arndb.de Subject: [PATCH v3 17/21] ARM: at91: merge SRAM Memory banks thanks to mirroring Date: Thu, 23 Feb 2012 15:26:01 +0100 Message-Id: X-Mailer: git-send-email 1.7.9 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2881 Lines: 68 From: Jean-Christophe PLAGNIOL-VILLARD On at91sam9260 and at91sam9g20 the SRAM banks are mirrored. We can merge them together to be able to have bigger and continuous internal RAM. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre --- arch/arm/mach-at91/at91sam9260.c | 13 +++++-------- arch/arm/mach-at91/include/mach/at91sam9260.h | 4 ++++ 2 files changed, 9 insertions(+), 8 deletions(-) diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index 14882ae..4ade265 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -310,15 +310,12 @@ static void __init at91sam9xe_map_io(void) static void __init at91sam9260_map_io(void) { - if (cpu_is_at91sam9xe()) { + if (cpu_is_at91sam9xe()) at91sam9xe_map_io(); - } else if (cpu_is_at91sam9g20()) { - at91_init_sram(0, AT91SAM9G20_SRAM0_BASE, AT91SAM9G20_SRAM0_SIZE); - at91_init_sram(1, AT91SAM9G20_SRAM1_BASE, AT91SAM9G20_SRAM1_SIZE); - } else { - at91_init_sram(0, AT91SAM9260_SRAM0_BASE, AT91SAM9260_SRAM0_SIZE); - at91_init_sram(1, AT91SAM9260_SRAM1_BASE, AT91SAM9260_SRAM1_SIZE); - } + else if (cpu_is_at91sam9g20()) + at91_init_sram(0, AT91SAM9G20_SRAM_BASE, AT91SAM9G20_SRAM_SIZE); + else + at91_init_sram(0, AT91SAM9260_SRAM_BASE, AT91SAM9260_SRAM_SIZE); } static void __init at91sam9260_ioremap_registers(void) diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h index 2e47b6d..08ae9af 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9260.h +++ b/arch/arm/mach-at91/include/mach/at91sam9260.h @@ -113,6 +113,8 @@ #define AT91SAM9260_SRAM0_SIZE SZ_4K /* Internal SRAM 0 size (4Kb) */ #define AT91SAM9260_SRAM1_BASE 0x00300000 /* Internal SRAM 1 base address */ #define AT91SAM9260_SRAM1_SIZE SZ_4K /* Internal SRAM 1 size (4Kb) */ +#define AT91SAM9260_SRAM_BASE 0x002FF000 /* Internal SRAM base address */ +#define AT91SAM9260_SRAM_SIZE SZ_8K /* Internal SRAM size (8Kb) */ #define AT91SAM9260_UHP_BASE 0x00500000 /* USB Host controller */ @@ -126,6 +128,8 @@ #define AT91SAM9G20_SRAM0_SIZE SZ_16K /* Internal SRAM 0 size (16Kb) */ #define AT91SAM9G20_SRAM1_BASE 0x00300000 /* Internal SRAM 1 base address */ #define AT91SAM9G20_SRAM1_SIZE SZ_16K /* Internal SRAM 1 size (16Kb) */ +#define AT91SAM9G20_SRAM_BASE 0x002FC000 /* Internal SRAM base address */ +#define AT91SAM9G20_SRAM_SIZE SZ_32K /* Internal SRAM size (32Kb) */ #define AT91SAM9G20_UHP_BASE 0x00500000 /* USB Host controller */ -- 1.7.9 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/