Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756243Ab3DPI7N (ORCPT ); Tue, 16 Apr 2013 04:59:13 -0400 Received: from mail-pb0-f54.google.com ([209.85.160.54]:44912 "EHLO mail-pb0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755123Ab3DPI7H (ORCPT ); Tue, 16 Apr 2013 04:59:07 -0400 From: Girish K S To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org Cc: kgene.kim@samsung.com Subject: [PATCH 1/2] ARM: dts: enable spi for EXYNOS5440 SOC Date: Tue, 16 Apr 2013 14:28:52 +0530 Message-Id: <1366102733-3570-1-git-send-email-ks.giri@samsung.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2693 Lines: 104 This patch enables the SPI in EXYNOS5440 SoC. The NOR Flash can be accessed by enabling the spi interface Signed-off-by: Girish K S --- arch/arm/boot/dts/exynos5440-ssdk5440.dts | 39 +++++++++++++++++++++++++++- arch/arm/boot/dts/exynos5440.dtsi | 16 +++++++---- 2 files changed, 47 insertions(+), 8 deletions(-) diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts index d55042b..a85ac0e 100644 --- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts +++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts @@ -20,8 +20,43 @@ bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel early_printk no_console_suspend mem=2048M@0x80000000 console=ttySAC0,115200"; }; - spi { - status = "disabled"; + spi_0: spi@D0000 { + + flash: w25q128@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "winbond,w25q128"; + spi-max-frequency = <15625000>; + reg = <0>; + controller-data { + samsung,spi-feedback-delay = <0>; + }; + + partition@00000 { + label = "BootLoader"; + reg = <0x60000 0x80000>; + read-only; + }; + + partition@e0000 { + label = "Recovery-Kernel"; + reg = <0xe0000 0x300000>; + read-only; + }; + + partition@3e0000 { + label = "CRAM-FS"; + reg = <0x3e0000 0x700000>; + read-only; + }; + + partition@ae0000 { + label = "User-Data"; + reg = <0xae0000 0x520000>; + }; + + }; + }; fixed-rate-clocks { diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi index f6b1c89..7c5dc38 100644 --- a/arch/arm/boot/dts/exynos5440.dtsi +++ b/arch/arm/boot/dts/exynos5440.dtsi @@ -16,6 +16,10 @@ interrupt-parent = <&gic>; + aliases { + spi0 = &spi_0; + }; + clock: clock-controller@0x160000 { compatible = "samsung,exynos5440-clock"; reg = <0x160000 0x1000>; @@ -101,15 +105,15 @@ clock-names = "uart", "clk_uart_baud0"; }; - spi { - compatible = "samsung,exynos4210-spi"; - reg = <0xD0000 0x1000>; + spi_0: spi@D0000 { + compatible = "samsung,exynos5440-spi"; + reg = <0xD0000 0x100>; interrupts = <0 4 0>; - tx-dma-channel = <&pdma0 5>; /* preliminary */ - rx-dma-channel = <&pdma0 4>; /* preliminary */ #address-cells = <1>; #size-cells = <0>; - clocks = <&clock 21>, <&clock 16>; + samsung,spi-src-clk = <0>; + num-cs = <1>; + clocks = <&clock 8>, <&clock 3>; clock-names = "spi", "spi_busclk0"; }; -- 1.7.5.4 -- 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/