From 689e331f3fb6e0a44155eef35fe19caf3285c6ce Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Tue, 28 Aug 2012 15:27:52 +0530 Subject: ARM: davinci: da850: add DT boot support Add support for booting DA850 using flattened device tree to describe the hardware. At this time only the very basic bootup using a serial console is supported. Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/Kconfig | 8 +++++ arch/arm/mach-davinci/Makefile | 1 + arch/arm/mach-davinci/da8xx-dt.c | 64 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 73 insertions(+) create mode 100644 arch/arm/mach-davinci/da8xx-dt.c (limited to 'arch/arm/mach-davinci') diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig index f8eecb959413..0153950f6068 100644 --- a/arch/arm/mach-davinci/Kconfig +++ b/arch/arm/mach-davinci/Kconfig @@ -58,6 +58,14 @@ config ARCH_DAVINCI_TNETV107X comment "DaVinci Board Type" +config MACH_DA8XX_DT + bool "Support DA8XX platforms using device tree" + default y + depends on ARCH_DAVINCI_DA8XX + help + Say y here to include support for TI DaVinci DA850 based using + Flattened Device Tree. More information at Documentation/devicetree + config MACH_DAVINCI_EVM bool "TI DM644x EVM" default ARCH_DAVINCI_DM644x diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile index 2227effcb0e9..fb5c1aa98a63 100644 --- a/arch/arm/mach-davinci/Makefile +++ b/arch/arm/mach-davinci/Makefile @@ -22,6 +22,7 @@ obj-$(CONFIG_AINTC) += irq.o obj-$(CONFIG_CP_INTC) += cp_intc.o # Board specific +obj-$(CONFIG_MACH_DA8XX_DT) += da8xx-dt.o obj-$(CONFIG_MACH_DAVINCI_EVM) += board-dm644x-evm.o obj-$(CONFIG_MACH_SFFSDR) += board-sffsdr.o obj-$(CONFIG_MACH_NEUROS_OSD2) += board-neuros-osd2.o diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c new file mode 100644 index 000000000000..df393d9b1517 --- /dev/null +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * Modified from mach-omap/omap2/board-generic.c + * + * 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. + */ +#include +#include +#include +#include + +#include + +#include +#include +#include + +#define DA8XX_NUM_UARTS 3 + +void __init da8xx_uart_clk_enable(void) +{ + int i; + for (i = 0; i < DA8XX_NUM_UARTS; i++) + davinci_serial_setup_clk(i, NULL); +} + +static struct of_device_id da8xx_irq_match[] __initdata = { + { .compatible = "ti,cp-intc", .data = cp_intc_of_init, }, + { } +}; + +static void __init da8xx_init_irq(void) +{ + of_irq_init(da8xx_irq_match); +} + +#ifdef CONFIG_ARCH_DAVINCI_DA850 + +static void __init da850_init_machine(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + da8xx_uart_clk_enable(); +} + +static const char *da850_boards_compat[] __initdata = { + "ti,da850", + NULL, +}; + +DT_MACHINE_START(DA850_DT, "Generic DA850/OMAP-L138/AM18x") + .map_io = da850_init, + .init_irq = da8xx_init_irq, + .timer = &davinci_timer, + .init_machine = da850_init_machine, + .dt_compat = da850_boards_compat, + .init_late = davinci_init_late, + .restart = da8xx_restart, +MACHINE_END + +#endif -- cgit v1.2.3-58-ga151 From 27e6e0d3dafa5b487dc28b219753443db300f289 Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Wed, 29 Aug 2012 23:25:27 +0530 Subject: ARM: davinci: da850 evm: add DT data Add device tree data for DA850 EVM. At this time, only information on serial ports is added. Signed-off-by: Sekhar Nori --- Documentation/devicetree/bindings/arm/davinci.txt | 4 ++++ arch/arm/boot/dts/da850-evm.dts | 28 +++++++++++++++++++++++ arch/arm/mach-davinci/da8xx-dt.c | 1 + 3 files changed, 33 insertions(+) create mode 100644 arch/arm/boot/dts/da850-evm.dts (limited to 'arch/arm/mach-davinci') diff --git a/Documentation/devicetree/bindings/arm/davinci.txt b/Documentation/devicetree/bindings/arm/davinci.txt index aa4e7a156dd2..2dda756414cc 100644 --- a/Documentation/devicetree/bindings/arm/davinci.txt +++ b/Documentation/devicetree/bindings/arm/davinci.txt @@ -1,6 +1,10 @@ Texas Instruments DaVinci Platforms Device Tree Bindings -------------------------------------------------------- +DA850/OMAP-L138/AM18x Evaluation Module (EVM) board +Required root node properties: + - compatible = "ti,da850-evm", "ti,da850"; + Generic DaVinci Boards ---------------------- diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts new file mode 100644 index 000000000000..37dc5a3243b8 --- /dev/null +++ b/arch/arm/boot/dts/da850-evm.dts @@ -0,0 +1,28 @@ +/* + * Device Tree for DA850 EVM board + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation, version 2. + */ +/dts-v1/; +/include/ "da850.dtsi" + +/ { + compatible = "ti,da850-evm", "ti,da850"; + model = "DA850/AM1808/OMAP-L138 EVM"; + + soc { + serial0: serial@1c42000 { + status = "okay"; + }; + serial1: serial@1d0c000 { + status = "okay"; + }; + serial2: serial@1d0d000 { + status = "okay"; + }; + }; +}; diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index df393d9b1517..94b09fd4cca4 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -47,6 +47,7 @@ static void __init da850_init_machine(void) } static const char *da850_boards_compat[] __initdata = { + "ti,da850-evm", "ti,da850", NULL, }; -- cgit v1.2.3-58-ga151 From 3015fb33483b80f64f82092f8acc89ce9c3f07e3 Mon Sep 17 00:00:00 2001 From: Heiko Schocher Date: Wed, 30 May 2012 12:19:03 +0200 Subject: ARM: davinci: add support for am1808 based EnBW CMC board This board supports: - AM1808 based board - 64 MiB DDR ram - 2 MiB Nor flash - 128 MiB NAND flash - use internal RTC - I2C support - hwmon lm75 support - UBI/UBIFS support - MMC support - USB OTG support This patch adds the basic DTS file enabling the serial ports. Other features will be added in due course of time. Signed-off-by: Heiko Schocher Cc: linux-arm-kernel@lists.infradead.org Cc: devicetree-discuss@lists.ozlabs.org Cc: davinci-linux-open-source@linux.davincidsp.com Cc: Sekhar Nori Cc: Kevin Hilman Cc: Wolfgang Denk [nsekhar@ti.com: modified after dtsi refactoring and added binding documentation] Signed-off-by: Sekhar Nori --- Documentation/devicetree/bindings/arm/davinci.txt | 4 +++ arch/arm/boot/dts/da850-enbw-cmc.dts | 30 +++++++++++++++++++++++ arch/arm/mach-davinci/da8xx-dt.c | 1 + 3 files changed, 35 insertions(+) create mode 100644 arch/arm/boot/dts/da850-enbw-cmc.dts (limited to 'arch/arm/mach-davinci') diff --git a/Documentation/devicetree/bindings/arm/davinci.txt b/Documentation/devicetree/bindings/arm/davinci.txt index 2dda756414cc..cfaeda4274e6 100644 --- a/Documentation/devicetree/bindings/arm/davinci.txt +++ b/Documentation/devicetree/bindings/arm/davinci.txt @@ -5,6 +5,10 @@ DA850/OMAP-L138/AM18x Evaluation Module (EVM) board Required root node properties: - compatible = "ti,da850-evm", "ti,da850"; +EnBW AM1808 based CMC board +Required root node properties: + - compatible = "enbw,cmc", "ti,da850; + Generic DaVinci Boards ---------------------- diff --git a/arch/arm/boot/dts/da850-enbw-cmc.dts b/arch/arm/boot/dts/da850-enbw-cmc.dts new file mode 100644 index 000000000000..422fdb3fcfc1 --- /dev/null +++ b/arch/arm/boot/dts/da850-enbw-cmc.dts @@ -0,0 +1,30 @@ +/* + * Device Tree for AM1808 EnBW CMC board + * + * Copyright 2012 DENX Software Engineering GmbH + * Heiko Schocher + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +/dts-v1/; +/include/ "da850.dtsi" + +/ { + compatible = "enbw,cmc", "ti,da850"; + model = "EnBW CMC"; + + soc { + serial0: serial@1c42000 { + status = "okay"; + }; + serial1: serial@1d0c000 { + status = "okay"; + }; + serial2: serial@1d0d000 { + status = "okay"; + }; + }; +}; diff --git a/arch/arm/mach-davinci/da8xx-dt.c b/arch/arm/mach-davinci/da8xx-dt.c index 94b09fd4cca4..37c27af18fa0 100644 --- a/arch/arm/mach-davinci/da8xx-dt.c +++ b/arch/arm/mach-davinci/da8xx-dt.c @@ -47,6 +47,7 @@ static void __init da850_init_machine(void) } static const char *da850_boards_compat[] __initdata = { + "enbw,cmc", "ti,da850-evm", "ti,da850", NULL, -- cgit v1.2.3-58-ga151 From 3a373904b88a73445f7a78249cf60efabbf1a9f3 Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Tue, 4 Sep 2012 19:56:28 +0530 Subject: ARM: davinci: da850: generate dtbs for da850 boards This helps generating device tree blobs for DaVinci DA850 boards with command: 'make ARCH=arm dtbs'. Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/Makefile.boot | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/mach-davinci') diff --git a/arch/arm/mach-davinci/Makefile.boot b/arch/arm/mach-davinci/Makefile.boot index 04a6c4e67b14..5c5a95a9d7d2 100644 --- a/arch/arm/mach-davinci/Makefile.boot +++ b/arch/arm/mach-davinci/Makefile.boot @@ -11,3 +11,5 @@ else params_phys-y := 0x80000100 initrd_phys-y := 0x80800000 endif + +dtb-$(CONFIG_MACH_DA8XX_DT) += da850-enbw-cmc.dtb da850-evm.dtb -- cgit v1.2.3-58-ga151