From 640a7af58b4ac9ca2347a25410b364829bde1bb7 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Thu, 9 Aug 2012 16:30:38 +0530 Subject: [PATCH] ARM: dt: tegra: cardhu: split dts file for support multiple board versions There is multiple version of cardhu starting from A01 to A07. Cardhu A01 and A03 are not supported. Cardhu A02 will have different sets of GPIOs for fixed regulator compare to cardhu A04. The Cardhu A05, A06, A07 are compatibe with A04. Based on cardhu version, the related dts file need to be chosen like for cardhu A02, use tegra30-cardhu-a02.dts, cardhu A04 and more, use tegra30-cardhu-a04.dts. This patch create the DTS file A02 and A04 and convert tegra30-cardhu.dts as dts include file. Signed-off-by: Laxman Dewangan Signed-off-by: Stephen Warren --- arch/arm/boot/dts/tegra30-cardhu-a02.dts | 11 ++++++++ arch/arm/boot/dts/tegra30-cardhu-a04.dts | 10 ++++++++ ...tegra30-cardhu.dts => tegra30-cardhu.dtsi} | 25 +++++++++++++++++-- arch/arm/mach-tegra/Makefile.boot | 3 ++- 4 files changed, 46 insertions(+), 3 deletions(-) create mode 100644 arch/arm/boot/dts/tegra30-cardhu-a02.dts create mode 100644 arch/arm/boot/dts/tegra30-cardhu-a04.dts rename arch/arm/boot/dts/{tegra30-cardhu.dts => tegra30-cardhu.dtsi} (84%) diff --git a/arch/arm/boot/dts/tegra30-cardhu-a02.dts b/arch/arm/boot/dts/tegra30-cardhu-a02.dts new file mode 100644 index 000000000000..dd870b7f188b --- /dev/null +++ b/arch/arm/boot/dts/tegra30-cardhu-a02.dts @@ -0,0 +1,11 @@ +/dts-v1/; + +/include/ "tegra30-cardhu.dtsi" + +/* This dts file support the cardhu A02 version of board */ + +/ { + model = "NVIDIA Tegra30 Cardhu A02 evaluation board"; + compatible = "nvidia,cardhu-a02", "nvidia,cardhu", "nvidia,tegra30"; +}; + diff --git a/arch/arm/boot/dts/tegra30-cardhu-a04.dts b/arch/arm/boot/dts/tegra30-cardhu-a04.dts new file mode 100644 index 000000000000..a4cae6c16ddf --- /dev/null +++ b/arch/arm/boot/dts/tegra30-cardhu-a04.dts @@ -0,0 +1,10 @@ +/dts-v1/; + +/include/ "tegra30-cardhu.dtsi" + +/* This dts file support the cardhu A04 and later versions of board */ + +/ { + model = "NVIDIA Tegra30 Cardhu A04 (A05, A06, A07) evaluation board"; + compatible = "nvidia,cardhu-a04", "nvidia,cardhu", "nvidia,tegra30"; +}; diff --git a/arch/arm/boot/dts/tegra30-cardhu.dts b/arch/arm/boot/dts/tegra30-cardhu.dtsi similarity index 84% rename from arch/arm/boot/dts/tegra30-cardhu.dts rename to arch/arm/boot/dts/tegra30-cardhu.dtsi index 6f9daaead5f9..ba38527fcb7f 100644 --- a/arch/arm/boot/dts/tegra30-cardhu.dts +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi @@ -1,7 +1,28 @@ -/dts-v1/; - /include/ "tegra30.dtsi" +/** + * This file contains common DT entry for all fab version of Cardhu. + * There is multiple fab version of Cardhu starting from A01 to A07. + * Cardhu fab version A01 and A03 are not supported. Cardhu fab version + * A02 will have different sets of GPIOs for fixed regulator compare to + * Cardhu fab version A04. The Cardhu fab version A05, A06, A07 are + * compatible with fab version A04. Based on Cardhu fab version, the + * related dts file need to be chosen like for Cardhu fab version A02, + * use tegra30-cardhu-a02.dts, Cardhu fab version A04 and later, use + * tegra30-cardhu-a04.dts. + * The identification of board is done in two ways, by looking the sticker + * on PCB and by reading board id eeprom. + * The stciker will have number like 600-81291-1000-002 C.3. In this 4th + * number is the fab version like here it is 002 and hence fab version A02. + * The (downstream internal) U-Boot of Cardhu display the board-id as + * follows: + * BoardID: 0C5B, SKU: 0A01, Fab: 02, Rev: 45.00 + * In this Fab version is 02 i.e. A02. + * The BoardID I2C eeprom is interfaced through i2c5 (pwr_i2c address 0x56). + * The location 0x8 of this eeprom contains the Fab version. It is 1 byte + * wide. + */ + / { model = "NVIDIA Tegra30 Cardhu evaluation board"; compatible = "nvidia,cardhu", "nvidia,tegra30"; diff --git a/arch/arm/mach-tegra/Makefile.boot b/arch/arm/mach-tegra/Makefile.boot index 7a1bb62ddcf0..6e3520725b06 100644 --- a/arch/arm/mach-tegra/Makefile.boot +++ b/arch/arm/mach-tegra/Makefile.boot @@ -8,4 +8,5 @@ dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-seaboard.dtb dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-trimslice.dtb dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-ventana.dtb dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20-whistler.dtb -dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu.dtb +dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu-a02.dtb +dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30-cardhu-a04.dtb -- 2.20.1