From 49fe2ba3138ca60422fd90ed76c1918be1c30fc0 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 10 Oct 2011 18:29:24 +0200 Subject: ARM: at91: dt: at91sam9g45 family and board device tree files Create a new device tree source file for Atmel at91sam9g45 SoC family. The Evaluation Kit at91sam9m10g45ek includes it. This first basic support will be populated as drivers and boards will be converted to device tree. Contains serial, dma and interrupt controllers. The generic board file still takes advantage of platform data for early serial init. As we need a storage media and the NAND flash driver is not converted to DT yet, we keep old initialization for it. Signed-off-by: Nicolas Ferre Reviewed-by: Rob Herring --- arch/arm/mach-at91/Kconfig | 11 ++++ arch/arm/mach-at91/Makefile | 3 + arch/arm/mach-at91/Makefile.boot | 2 + arch/arm/mach-at91/at91sam9g45.c | 6 ++ arch/arm/mach-at91/board-dt.c | 122 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 144 insertions(+) create mode 100644 arch/arm/mach-at91/board-dt.c (limited to 'arch/arm/mach-at91') diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 22484670e7b..4b59d96e1cd 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -442,6 +442,17 @@ endif # ---------------------------------------------------------- +comment "Generic Board Type" + +config MACH_AT91SAM_DT + bool "Atmel AT91SAM Evaluation Kits with device-tree support" + select USE_OF + help + Select this if you want to experiment device-tree with + an Atmel Evaluation Kit. + +# ---------------------------------------------------------- + comment "AT91 Board Options" config MTD_AT91_DATAFLASH_CARD diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index bf57e8b1c9d..3ff245ebcad 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -74,6 +74,9 @@ obj-$(CONFIG_MACH_SNAPPER_9260) += board-snapper9260.o # AT91SAM9G45 board-specific support obj-$(CONFIG_MACH_AT91SAM9M10G45EK) += board-sam9m10g45ek.o +# AT91SAM board with device-tree +obj-$(CONFIG_MACH_AT91SAM_DT) += board-dt.o + # AT91CAP9 board-specific support obj-$(CONFIG_MACH_AT91CAP9ADK) += board-cap9adk.o diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot index 3462b815054..d2788636805 100644 --- a/arch/arm/mach-at91/Makefile.boot +++ b/arch/arm/mach-at91/Makefile.boot @@ -16,3 +16,5 @@ else params_phys-y := 0x20000100 initrd_phys-y := 0x20410000 endif + +dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index e04c5fb6f1e..8baf5a1ed16 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -215,6 +215,12 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.1", &tcb0_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk), + /* more usart lookup table for DT entries */ + CLKDEV_CON_DEV_ID("usart", "ffffee00.serial", &mck), + CLKDEV_CON_DEV_ID("usart", "fff8c000.serial", &usart0_clk), + CLKDEV_CON_DEV_ID("usart", "fff90000.serial", &usart1_clk), + CLKDEV_CON_DEV_ID("usart", "fff94000.serial", &usart2_clk), + CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk), }; static struct clk_lookup usart_clocks_lookups[] = { diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c new file mode 100644 index 00000000000..33a0d8b549b --- /dev/null +++ b/arch/arm/mach-at91/board-dt.c @@ -0,0 +1,122 @@ +/* + * Setup code for AT91SAM Evaluation Kits with Device Tree support + * + * Covers: * AT91SAM9G45-EKES board + * * AT91SAM9M10-EKES board + * * AT91SAM9M10G45-EK board + * + * Copyright (C) 2011 Atmel, + * 2011 Nicolas Ferre + * + * Licensed under GPLv2 or later. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include "sam9_smc.h" +#include "generic.h" + + +static void __init ek_init_early(void) +{ + /* Initialize processor: 12.000 MHz crystal */ + at91_initialize(12000000); + + /* DGBU on ttyS0. (Rx & Tx only) */ + at91_register_uart(0, 0, 0); + + /* set serial console to ttyS0 (ie, DBGU) */ + at91_set_serial_console(0); +} + +/* det_pin is not connected */ +static struct atmel_nand_data __initdata ek_nand_data = { + .ale = 21, + .cle = 22, + .rdy_pin = AT91_PIN_PC8, + .enable_pin = AT91_PIN_PC14, +}; + +static struct sam9_smc_config __initdata ek_nand_smc_config = { + .ncs_read_setup = 0, + .nrd_setup = 2, + .ncs_write_setup = 0, + .nwe_setup = 2, + + .ncs_read_pulse = 4, + .nrd_pulse = 4, + .ncs_write_pulse = 4, + .nwe_pulse = 4, + + .read_cycle = 7, + .write_cycle = 7, + + .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, + .tdf_cycles = 3, +}; + +static void __init ek_add_device_nand(void) +{ + ek_nand_data.bus_width_16 = board_have_nand_16bit(); + /* setup bus-width (8 or 16) */ + if (ek_nand_data.bus_width_16) + ek_nand_smc_config.mode |= AT91_SMC_DBW_16; + else + ek_nand_smc_config.mode |= AT91_SMC_DBW_8; + + /* configure chip-select 3 (NAND) */ + sam9_smc_configure(3, &ek_nand_smc_config); + + at91_add_device_nand(&ek_nand_data); +} + +static const struct of_device_id aic_of_match[] __initconst = { + { .compatible = "atmel,at91rm9200-aic", }, + {}, +}; + +static void __init at91_dt_init_irq(void) +{ + irq_domain_generate_simple(aic_of_match, 0xfffff000, 0); + at91_init_irq_default(); +} + +static void __init at91_dt_device_init(void) +{ + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + + /* NAND */ + ek_add_device_nand(); +} + +static const char *at91_dt_board_compat[] __initdata = { + "atmel,at91sam9m10g45ek", + NULL +}; + +DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)") + /* Maintainer: Atmel */ + .timer = &at91sam926x_timer, + .map_io = at91_map_io, + .init_early = ek_init_early, + .init_irq = at91_dt_init_irq, + .init_machine = at91_dt_device_init, + .dt_compat = at91_dt_board_compat, +MACHINE_END -- cgit v1.2.3-70-g09d2 From fea3158c5508f3a96b0cfec6d37a239aa7f3ed4b Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 14 Oct 2011 09:40:52 +0800 Subject: ARM: at91: add at91sam9g20 and Calao USB A9G20 DT support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Nicolas Ferre Reviewed-by: Rob Herring --- arch/arm/boot/dts/at91sam9g20.dtsi | 119 +++++++++++++++++++++++++++++++++++++ arch/arm/boot/dts/usb_a9g20.dts | 30 ++++++++++ arch/arm/mach-at91/Makefile.boot | 2 +- arch/arm/mach-at91/at91sam9260.c | 8 +++ arch/arm/mach-at91/board-dt.c | 1 + 5 files changed, 159 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/at91sam9g20.dtsi create mode 100644 arch/arm/boot/dts/usb_a9g20.dts (limited to 'arch/arm/mach-at91') diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi new file mode 100644 index 00000000000..aeef04269cf --- /dev/null +++ b/arch/arm/boot/dts/at91sam9g20.dtsi @@ -0,0 +1,119 @@ +/* + * at91sam9g20.dtsi - Device Tree Include file for AT91SAM9G20 family SoC + * + * Copyright (C) 2011 Atmel, + * 2011 Nicolas Ferre , + * 2011 Jean-Christophe PLAGNIOL-VILLARD + * + * Licensed under GPLv2 or later. + */ + +/include/ "skeleton.dtsi" + +/ { + model = "Atmel AT91SAM9G20 family SoC"; + compatible = "atmel,at91sam9g20"; + interrupt-parent = <&aic>; + + aliases { + serial0 = &dbgu; + serial1 = &usart0; + serial2 = &usart1; + serial3 = &usart2; + serial4 = &usart3; + serial5 = &usart4; + serial6 = &usart5; + }; + cpus { + cpu@0 { + compatible = "arm,arm926ejs"; + }; + }; + + memory@20000000 { + reg = <0x20000000 0x08000000>; + }; + + ahb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + apb { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + aic: interrupt-controller@fffff000 { + #interrupt-cells = <1>; + compatible = "atmel,at91rm9200-aic"; + interrupt-controller; + interrupt-parent; + reg = <0xfffff000 0x200>; + }; + + dbgu: serial@fffff200 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffff200 0x200>; + interrupts = <1>; + status = "disabled"; + }; + + usart0: serial@fffb0000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffb0000 0x200>; + interrupts = <6>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart1: serial@fffb4000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffb4000 0x200>; + interrupts = <7>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart2: serial@fffb8000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffb8000 0x200>; + interrupts = <8>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart3: serial@fffd0000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffd0000 0x200>; + interrupts = <23>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart4: serial@fffd4000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffd4000 0x200>; + interrupts = <24>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + + usart5: serial@fffd8000 { + compatible = "atmel,at91sam9260-usart"; + reg = <0xfffd8000 0x200>; + interrupts = <25>; + atmel,use-dma-rx; + atmel,use-dma-tx; + status = "disabled"; + }; + }; + }; +}; diff --git a/arch/arm/boot/dts/usb_a9g20.dts b/arch/arm/boot/dts/usb_a9g20.dts new file mode 100644 index 00000000000..d66e2c00ac3 --- /dev/null +++ b/arch/arm/boot/dts/usb_a9g20.dts @@ -0,0 +1,30 @@ +/* + * usb_a9g20.dts - Device Tree file for Caloa USB A9G20 board + * + * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD + * + * Licensed under GPLv2 or later. + */ +/dts-v1/; +/include/ "at91sam9g20.dtsi" + +/ { + model = "Calao USB A9G20"; + compatible = "calao,usb-a9g20", "atmel,at91sam9g20", "atmel,at91sam9"; + + chosen { + bootargs = "mem=64M console=ttyS0,115200 mtdparts=atmel_nand:128k(at91bootstrap),256k(barebox)ro,128k(bareboxenv),128k(bareboxenv2),4M(kernel),120M(rootfs),-(data) root=/dev/mtdblock5 rw rootfstype=ubifs"; + }; + + memory@20000000 { + reg = <0x20000000 0x4000000>; + }; + + ahb { + apb { + dbgu: serial@fffff200 { + status = "okay"; + }; + }; + }; +}; diff --git a/arch/arm/mach-at91/Makefile.boot b/arch/arm/mach-at91/Makefile.boot index d2788636805..08c665affde 100644 --- a/arch/arm/mach-at91/Makefile.boot +++ b/arch/arm/mach-at91/Makefile.boot @@ -17,4 +17,4 @@ params_phys-y := 0x20000100 initrd_phys-y := 0x20410000 endif -dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb +dtb-$(CONFIG_MACH_AT91SAM_DT) += at91sam9m10g45ek.dtb usb_a9g20.dtb diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c index cb397be1444..f4518b49cb8 100644 --- a/arch/arm/mach-at91/at91sam9260.c +++ b/arch/arm/mach-at91/at91sam9260.c @@ -199,6 +199,14 @@ static struct clk_lookup periph_clocks_lookups[] = { CLKDEV_CON_DEV_ID("t4_clk", "atmel_tcb.1", &tc4_clk), CLKDEV_CON_DEV_ID("t5_clk", "atmel_tcb.1", &tc5_clk), CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc_clk), + /* more usart lookup table for DT entries */ + CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck), + CLKDEV_CON_DEV_ID("usart", "fffb0000.serial", &usart0_clk), + CLKDEV_CON_DEV_ID("usart", "fffb4000.serial", &usart1_clk), + CLKDEV_CON_DEV_ID("usart", "fffb8000.serial", &usart2_clk), + CLKDEV_CON_DEV_ID("usart", "fffd0000.serial", &usart3_clk), + CLKDEV_CON_DEV_ID("usart", "fffd4000.serial", &usart4_clk), + CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk), }; static struct clk_lookup usart_clocks_lookups[] = { diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c index 33a0d8b549b..0b7d3277821 100644 --- a/arch/arm/mach-at91/board-dt.c +++ b/arch/arm/mach-at91/board-dt.c @@ -108,6 +108,7 @@ static void __init at91_dt_device_init(void) static const char *at91_dt_board_compat[] __initdata = { "atmel,at91sam9m10g45ek", + "calao,usb-a9g20", NULL }; -- cgit v1.2.3-70-g09d2