Add support for the Digi CCIMX6UL SBC Pro. It is based on the Digi CCIMX6UL SOM with 256MB RAM and 256MB NAND flash. Signed-off-by: Rouven Czerwinski <r.czerwinski@xxxxxxxxxxxxxx> --- .../boards/imx/digi-ccimx6ulsbcpro.rst | 26 ++++++ arch/arm/boards/Makefile | 3 +- arch/arm/boards/digi-ccimx6ulsbcpro/Makefile | 2 + arch/arm/boards/digi-ccimx6ulsbcpro/board.c | 49 +++++++++++ .../flash-header-imx6ul-ccimx6ulsbcpro.imxcfg | 82 +++++++++++++++++++ .../arm/boards/digi-ccimx6ulsbcpro/lowlevel.c | 39 +++++++++ arch/arm/dts/Makefile | 1 + arch/arm/dts/imx6ul-ccimx6ulsbcpro.dts | 41 ++++++++++ arch/arm/mach-imx/Kconfig | 6 ++ images/Makefile.imx | 5 ++ 10 files changed, 253 insertions(+), 1 deletion(-) create mode 100644 Documentation/boards/imx/digi-ccimx6ulsbcpro.rst create mode 100644 arch/arm/boards/digi-ccimx6ulsbcpro/Makefile create mode 100644 arch/arm/boards/digi-ccimx6ulsbcpro/board.c create mode 100644 arch/arm/boards/digi-ccimx6ulsbcpro/flash-header-imx6ul-ccimx6ulsbcpro.imxcfg create mode 100644 arch/arm/boards/digi-ccimx6ulsbcpro/lowlevel.c create mode 100644 arch/arm/dts/imx6ul-ccimx6ulsbcpro.dts diff --git a/Documentation/boards/imx/digi-ccimx6ulsbcpro.rst b/Documentation/boards/imx/digi-ccimx6ulsbcpro.rst new file mode 100644 index 0000000000..bcb2ec2f07 --- /dev/null +++ b/Documentation/boards/imx/digi-ccimx6ulsbcpro.rst @@ -0,0 +1,26 @@ +Digi CC-IMX6UL-SBC-PRO +====================== + +This board is based on the i.MX6UL SoC. + +The SBC Pro is shipped with: + + * 256MiB NAND flash + * 256MiB DDR3 SDRAM + +see https://www.digi.com/products/embedded-systems/single-board-computers/connectcore-for-i-mx6ul-sbc-pro +for more information. + +MAC addresses +------------- +The Digi modules save their MAC addresses not in the OCOTP nodes, but in the +U-Boot environment. It is advised to boot the board using the shipped U-Boot +Bootloader and to read out and save the MAC addresses for the board. +The environment variables which contain the addresses are `$ethaddr` and +`$eth1addr`. +The MAC addresses can than be persisted to the barebox environment by using + +.. code-block:: sh + + nv dev.eth0.ethaddr=<eth0addr> + nv dev.eth1.ethaddr=<eth1addr> diff --git a/arch/arm/boards/Makefile b/arch/arm/boards/Makefile index 91f17374c9..aba84cb6a2 100644 --- a/arch/arm/boards/Makefile +++ b/arch/arm/boards/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_MACH_CFA10036) += crystalfontz-cfa10036/ obj-$(CONFIG_MACH_CHUMBY) += chumby_falconwing/ obj-$(CONFIG_MACH_CLEP7212) += clep7212/ obj-$(CONFIG_MACH_DFI_FS700_M60) += dfi-fs700-m60/ +obj-$(CONFIG_MACH_DIGI_CCIMX6ULSBCPRO) += digi-ccimx6ulsbcpro/ obj-$(CONFIG_MACH_DUCKBILL) += duckbill/ obj-$(CONFIG_MACH_DSS11) += dss11/ obj-$(CONFIG_MACH_EDB93012) += edb93xx/ @@ -165,4 +166,4 @@ obj-$(CONFIG_MACH_ZII_VF610_DEV) += zii-vf610-dev/ obj-$(CONFIG_MACH_ZII_IMX7D_RPU2) += zii-imx7d-rpu2/ obj-$(CONFIG_MACH_WAGO_PFC_AM35XX) += wago-pfc-am35xx/ obj-$(CONFIG_MACH_LS1046ARDB) += ls1046ardb/ -obj-$(CONFIG_MACH_TQMLS1046A) += tqmls1046a/ \ No newline at end of file +obj-$(CONFIG_MACH_TQMLS1046A) += tqmls1046a/ diff --git a/arch/arm/boards/digi-ccimx6ulsbcpro/Makefile b/arch/arm/boards/digi-ccimx6ulsbcpro/Makefile new file mode 100644 index 0000000000..01c7a259e9 --- /dev/null +++ b/arch/arm/boards/digi-ccimx6ulsbcpro/Makefile @@ -0,0 +1,2 @@ +obj-y += board.o +lwl-y += lowlevel.o diff --git a/arch/arm/boards/digi-ccimx6ulsbcpro/board.c b/arch/arm/boards/digi-ccimx6ulsbcpro/board.c new file mode 100644 index 0000000000..112f4e778a --- /dev/null +++ b/arch/arm/boards/digi-ccimx6ulsbcpro/board.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2019 Rouven Czerwinski, Pengutronix + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation. + * + */ + +#include <asm/armlinux.h> +#include <asm/io.h> +#include <bootsource.h> +#include <common.h> +#include <environment.h> +#include <envfs.h> +#include <gpio.h> +#include <init.h> +#include <mach/generic.h> +#include <mach/imx6-regs.h> +#include <mach/imx6.h> +#include <mach/bbu.h> +#include <linux/sizes.h> +#include <linux/phy.h> +#include <mfd/imx6q-iomuxc-gpr.h> + +#include <linux/micrel_phy.h> + +static int digi_ccimx6ulsbcpro_device_init(void) +{ + if (!of_machine_is_compatible("digi,ccimx6ulsbcpro")) + return 0; + + imx6_bbu_nand_register_handler("nand", BBU_HANDLER_FLAG_DEFAULT); + + barebox_set_hostname("ccimx6ulsbcpro"); + + return 0; +} +device_initcall(digi_ccimx6ulsbcpro_device_init); diff --git a/arch/arm/boards/digi-ccimx6ulsbcpro/flash-header-imx6ul-ccimx6ulsbcpro.imxcfg b/arch/arm/boards/digi-ccimx6ulsbcpro/flash-header-imx6ul-ccimx6ulsbcpro.imxcfg new file mode 100644 index 0000000000..36edad7a3e --- /dev/null +++ b/arch/arm/boards/digi-ccimx6ulsbcpro/flash-header-imx6ul-ccimx6ulsbcpro.imxcfg @@ -0,0 +1,82 @@ +loadaddr 0x80000000 +soc imx6 +dcdofs 0x400 + +/* Enable all clocks */ +wm 32 0x020c4068 0xffffffff +wm 32 0x020c406c 0xffffffff +wm 32 0x020c4070 0xffffffff +wm 32 0x020c4074 0xffffffff +wm 32 0x020c4078 0xffffffff +wm 32 0x020c407c 0xffffffff +wm 32 0x020c4080 0xffffffff + +/* IOMUX */ +/* DDR IO type */ +wm 32 0x020E04B4 0x000C0000 +wm 32 0x020E04AC 0x00000000 +/* Clock */ +wm 32 0x020E027C 0x00000030 +/* Control */ +wm 32 0x020E0250 0x00000030 +wm 32 0x020E024C 0x00000030 +wm 32 0x020E0490 0x00000030 +wm 32 0x020E0288 0x00000030 +wm 32 0x020E0270 0x00000000 +wm 32 0x020E0260 0x00000030 +wm 32 0x020E0264 0x00000030 +wm 32 0x020E04A0 0x00000030 +/* Data strobe */ +wm 32 0x020E0494 0x00020000 +wm 32 0x020E0280 0x00000030 +wm 32 0x020E0284 0x00000030 +/* Data */ +wm 32 0x020E04B0 0x00020000 +wm 32 0x020E0498 0x00000030 +wm 32 0x020E04A4 0x00000030 +wm 32 0x020E0244 0x00000030 +wm 32 0x020E0248 0x00000030 + +/* DDR Controller registers */ +wm 32 0x021B001C 0x00008000 +wm 32 0x021B0800 0xA1390003 +/* Calibration values */ +wm 32 0x021B080C 0x00000000 +wm 32 0x021B083C 0x413B013B +wm 32 0x021B0848 0x4040373E +wm 32 0x021B0850 0x40405954 +wm 32 0x021B081C 0x33333333 +wm 32 0x021B0820 0x33333333 +wm 32 0x021B082C 0xf3333333 +wm 32 0x021B0830 0xf3333333 +/* END of calibration values */ +wm 32 0x021B08C0 0x00921012 +wm 32 0x021B08b8 0x00000800 + +/* MMDC init */ +wm 32 0x021B0004 0x0002002D +wm 32 0x021B0008 0x1b333030 +wm 32 0x021B000C 0x676B52F3 +wm 32 0x021B0010 0xB66D0B63 +wm 32 0x021B0014 0x01FF00DB +/* Consider reducing RALAT (currently set to 5) */ +wm 32 0x021B0018 0x00201740 +wm 32 0x021B001C 0x00008000 +wm 32 0x021B002C 0x000026D2 +wm 32 0x021B0030 0x006B1023 +wm 32 0x021B0040 0x00000047 +wm 32 0x021B0000 0x83180000 + +/* Mode registers writes for CS0 */ +wm 32 0x021B001C 0x02008032 +wm 32 0x021B001C 0x00008033 +wm 32 0x021B001C 0x00048031 +wm 32 0x021B001C 0x15208030 +wm 32 0x021B001C 0x04008040 + +/* Final DDR setup */ +wm 32 0x021B0020 0x00000800 +wm 32 0x021B0818 0x00000227 +wm 32 0x021B0004 0x0002552D +wm 32 0x021B0404 0x00011006 +wm 32 0x021B001C 0x00000000 diff --git a/arch/arm/boards/digi-ccimx6ulsbcpro/lowlevel.c b/arch/arm/boards/digi-ccimx6ulsbcpro/lowlevel.c new file mode 100644 index 0000000000..8ed832a5a2 --- /dev/null +++ b/arch/arm/boards/digi-ccimx6ulsbcpro/lowlevel.c @@ -0,0 +1,39 @@ +#include <common.h> +#include <linux/sizes.h> +#include <mach/generic.h> +#include <asm/barebox-arm-head.h> +#include <asm/barebox-arm.h> +#include <mach/imx6-regs.h> +#include <io.h> +#include <debug_ll.h> +#include <mach/esdctl.h> +#include <asm/cache.h> +#include <asm/sections.h> +#include <image-metadata.h> + + +extern char __dtb_imx6ul_ccimx6ulsbcpro_start[]; + +ENTRY_FUNCTION(start_imx6ul_ccimx6ulsbcpro, r0, r1, r2) +{ + void *fdt; + + imx6ul_cpu_lowlevel_init(); + + arm_setup_stack(0x00910000 - 8); + + arm_early_mmu_cache_invalidate(); + + relocate_to_current_adr(); + setup_c(); + barrier(); + + /* disable all watchdog powerdown counters */ + writew(0x0, 0x020bc008); + writew(0x0, 0x020c0008); + writew(0x0, 0x021e4008); + + fdt = __dtb_imx6ul_ccimx6ulsbcpro_start + get_runtime_offset(); + + imx6ul_barebox_entry(fdt); +} diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 1c6129816d..227060e6d9 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -23,6 +23,7 @@ pbl-dtb-$(CONFIG_MACH_FREESCALE_MX53_LOCO) += imx53-qsb.dtb.o imx53-qsrb.dtb.o pbl-dtb-$(CONFIG_MACH_TX53) += imx53-tx53-xx30.dtb.o imx53-tx53-1011.dtb.o pbl-dtb-$(CONFIG_MACH_CCMX51) += imx51-ccxmx51.dtb.o pbl-dtb-$(CONFIG_MACH_CCMX53) += imx53-ccxmx53.dtb.o +pbl-dtb-$(CONFIG_MACH_DIGI_CCIMX6ULSBCPRO) += imx6ul-ccimx6ulsbcpro.dtb.o pbl-dtb-$(CONFIG_MACH_FREESCALE_MX53_VMX53) += imx53-voipac-bsb.dtb.o pbl-dtb-$(CONFIG_MACH_FREESCALE_MX7_SABRESD) += imx7d-sdb.dtb.o pbl-dtb-$(CONFIG_MACH_GK802) += imx6q-gk802.dtb.o diff --git a/arch/arm/dts/imx6ul-ccimx6ulsbcpro.dts b/arch/arm/dts/imx6ul-ccimx6ulsbcpro.dts new file mode 100644 index 0000000000..1139c4b7d6 --- /dev/null +++ b/arch/arm/dts/imx6ul-ccimx6ulsbcpro.dts @@ -0,0 +1,41 @@ +#include <arm/imx6ul-ccimx6ulsbcpro.dts> + +/{ + chosen { + stdout-path = &uart5; + + environment-nand { + compatible = "barebox,environment"; + device-path = &gpmi, "partname:barebox-environment"; + status = "okay"; + }; + }; +}; + +&gpmi { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_gpmi_nand>; + nand-on-flash-bbt; + status = "okay"; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "barebox"; + reg = <0x0 0x400000>; + }; + + partition@400000 { + label = "barebox-environment"; + reg = <0x400000 0x100000>; + }; + + partition@500000 { + label = "root"; + reg = <0x500000 0x0>; + }; + }; +}; diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index c4e7500e8f..dbc297c2ef 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -504,6 +504,12 @@ config MACH_GRINN_LITEBOARD bool "Grinn liteboard" select ARCH_IMX6UL +config MACH_DIGI_CCIMX6ULSBCPRO + bool "Digi Internal CC-IMX6UL SBC Pro" + select ARCH_IMX6 + select ARCH_IMX6UL + select ARM_USE_COMPRESSED_DTB + endif # ---------------------------------------------------------- diff --git a/images/Makefile.imx b/images/Makefile.imx index e6f741cdb4..475b82205d 100644 --- a/images/Makefile.imx +++ b/images/Makefile.imx @@ -519,6 +519,11 @@ CFG_start_imx6ul_pico_hobbit_512mb.pblb.imximg = $(board)/technexion-pico-hobbit FILE_barebox-imx6ul-pico-hobbit-512mb.img = start_imx6ul_pico_hobbit_512mb.pblb.imximg image-$(CONFIG_MACH_TECHNEXION_PICO_HOBBIT) += barebox-imx6ul-pico-hobbit-512mb.img +pblb-$(CONFIG_MACH_DIGI_CCIMX6ULSBCPRO) += start_imx6ul_ccimx6ulsbcpro +CFG_start_imx6ul_ccimx6ulsbcpro.pblb.imximg = $(board)/digi-ccimx6ulsbcpro/flash-header-imx6ul-ccimx6ulsbcpro.imxcfg +FILE_barebox-imx6ul-ccimx6ulsbcpro.img = start_imx6ul_ccimx6ulsbcpro.pblb.imximg +image-$(CONFIG_MACH_DIGI_CCIMX6ULSBCPRO) += barebox-imx6ul-ccimx6ulsbcpro.img + # ----------------------- vf6xx based boards --------------------------- pblb-$(CONFIG_MACH_VF610_TWR) += start_vf610_twr CFG_start_vf610_twr.pblb.imximg = $(board)/freescale-vf610-twr/flash-header-vf610-twr.imxcfg -- 2.21.0 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
