diff options
Diffstat (limited to 'board/technexion')
| -rw-r--r-- | board/technexion/pico-imx6ul/MAINTAINERS | 12 | ||||
| -rw-r--r-- | board/technexion/pico-imx6ul/Makefile | 2 | ||||
| -rw-r--r-- | board/technexion/pico-imx6ul/README | 138 | ||||
| -rw-r--r-- | board/technexion/pico-imx6ul/spl.c | 144 | ||||
| -rw-r--r-- | board/technexion/pico-imx7d/MAINTAINERS | 9 |
5 files changed, 283 insertions, 22 deletions
diff --git a/board/technexion/pico-imx6ul/MAINTAINERS b/board/technexion/pico-imx6ul/MAINTAINERS index 594a883d15..b8f3d24a53 100644 --- a/board/technexion/pico-imx6ul/MAINTAINERS +++ b/board/technexion/pico-imx6ul/MAINTAINERS @@ -1,7 +1,17 @@ -Technexion PICO-IMX6UL board +TechNexion PICO-IMX6UL board M: Richard Hu <richard.hu@technexion.com> M: Fabio Estevam <fabio.estevam@nxp.com> S: Maintained F: board/technexion/pico-imx6ul/ F: include/configs/pico-imx6ul.h F: configs/pico-imx6ul_defconfig + +TechNexion PICO-HOBBIT-IMX6UL +M: Otavio Salvador <otavio@ossystems.com.br> +S: Maintained +F: configs/pico-hobbit-imx6ul_defconfig + +TechNexion PICO-PI-IMX6UL +M: Otavio Salvador <otavio@ossystems.com.br> +S: Maintained +F: configs/pico-pi-imx6ul_defconfig diff --git a/board/technexion/pico-imx6ul/Makefile b/board/technexion/pico-imx6ul/Makefile index 8fdb7875ac..b7493df01c 100644 --- a/board/technexion/pico-imx6ul/Makefile +++ b/board/technexion/pico-imx6ul/Makefile @@ -2,4 +2,4 @@ # (C) Copyright 2015 Technexion Ltd. # (C) Copyright 2015 Freescale Semiconductor, Inc. -obj-y := pico-imx6ul.o +obj-y := pico-imx6ul.o spl.o diff --git a/board/technexion/pico-imx6ul/README b/board/technexion/pico-imx6ul/README index 2f66095097..1cabd90759 100644 --- a/board/technexion/pico-imx6ul/README +++ b/board/technexion/pico-imx6ul/README @@ -13,45 +13,147 @@ $ make mrproper $ make pico-imx6ul_defconfig $ make -This will generate the U-Boot binary called u-boot.imx. +This generates the SPL and u-boot.img binaries. + +1. Loading U-Boot via USB Serial Download Protocol + +Note: This method is convenient for development purposes. +If the eMMC has already a U-Boot flashed with DFU support then +the user can go to step 2 below in order to update U-Boot. Put pico board in USB download mode (refer to the document -http://www.wandboard.org/images/hobbit/hobbitboard-imx6ul-reva1.pdf page 15) +http://www.wandboard.org/images/hobbit/hobbitboard-imx6ul-reva1.pdf +page 15). + +Connect a USB to serial adapter between the host PC and pico. + +Connect a USB cable between the OTG pico port and the host PC. -Connect a USB to serial adapter between the host PC and pico +Open a terminal program such as minicom. -Connect a USB cable between the OTG pico port and the host PC +Copy SPL and u-boot.img to the imx_usb_loader folder. -Open a terminal program such as minicom +Load the SPL binary via USB: -Copy u-boot.imx to the imx_usb_loader folder. +$ sudo ./imx_usb SPL -Load u-boot.imx via USB: +Load the u-boot.img binary via USB: -$ sudo ./imx_usb u-boot.imx +$ sudo ./imx_usb u-boot.img -Then U-Boot should start and its messages will appear in the console program. +Then U-Boot starts and its messages appear in the console program. Use the default environment variables: => env default -f -a => saveenv -Run the DFU command: -=> dfu 0 mmc 0 +2. Flashing U-Boot into the eMMC + +Run the DFU agent so we can flash the new images using dfu-util tool: -Transfer u-boot.imx that will be flashed into the eMMC: +=> dfu 0 mmc 0 -$ sudo dfu-util -D u-boot.imx -a boot +Flash SPL and u-boot.img into the eMMC running the following commands on a PC: -Then on the U-Boot prompt the following message should be seen after a -successful upgrade: +$ sudo dfu-util -D SPL -a spl -#DOWNLOAD ... OK -Ctrl+C to exit ... +$ sudo dfu-util -D u-boot.img -a u-boot Remove power from the pico board. -Put pico board into normal boot mode +Put pico board into normal boot mode. Power up the board and the new updated U-Boot should boot from eMMC. + +Booting in Falcon mode +====================== + +Generate a uImage kernel: + +$ make imx_v6_v7_defconfig (Using the default imx_v6_v7_defconfig configuration +just for an example. In order to boot faster the user should customize the +defconfig by only enabling the minimal required drivers). + +$ make -j4 uImage LOADADDR=0x80800000 + +$ cp arch/arm/boot/uImage /tftpboot +$ cp arch/arm/boot/dts/imx6ul-pico-hobbit.dtb /tftpboot + +In the U-Boot prompt: + +Setup the server and board IP addresses: +=> setenv serverip 192.168.0.10 +=> setenv ipaddr 192.168.0.11 + +Get the dtb file: +=> tftp ${fdt_addr} imx6ul-pico-hobbit.dtb + +Get the kernel: +=> tftp ${loadaddr} uImage + +Write the kernel at 2MB offset: +=> mmc write ${loadaddr} 0x1000 0x4000 + +Setup the bootargs: +=> setenv bootargs 'console=ttymxc5,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait rw' + +Prepare args: +=> spl export fdt ${loadaddr} - ${fdt_addr} +## Booting kernel from Legacy Image at 82000000 ... + Image Name: Linux-4.19.0-rc2-next-20180905-0 + Image Type: ARM Linux Kernel Image (uncompressed) + Data Size: 8365608 Bytes = 8 MiB + Load Address: 80800000 + Entry Point: 80800000 + Verifying Checksum ... OK +## Flattened Device Tree blob at 83000000 + Booting using the fdt blob at 0x83000000 + Loading Kernel Image ... OK + Using Device Tree in place at 83000000, end 83009c63 +subcommand not supported +subcommand not supported + Using Device Tree in place at 83000000, end 8300cc63 +Argument image is now in RAM: 0x83000000 + +Write 1MB of args data (0x800 sectors) to 1MB offset (0x800 sectors): + +=> mmc write ${fdt_addr} 0x800 0x800 + +In order to boot with Falcon mode, activate the CONFIG_SPL_OS_BOOT +option in the defconfig + +--- a/configs/pico-hobbit-imx6ul_defconfig ++++ b/configs/pico-hobbit-imx6ul_defconfig +@@ -53,3 +53,4 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0525 + CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5 + CONFIG_CI_UDC=y + CONFIG_OF_LIBFDT=y ++CONFIG_SPL_OS_BOOT=y + +Then rebuild U-Boot: + +$ make pico-hobbit-imx6ul_defconfig +$ make -j4 + +Launch UMS: +=> ums 0 mmc 0 + +Flash the new binaries: + +$ sudo dd if=SPL of=/dev/sdX bs=1k seek=1; sync +$ sudo dd if=u-boot.img of=/dev/sdX bs=1k seek=69; sync + +And then SPL binary will load and jump directly to the kernel: + +U-Boot SPL 2018.09-rc2-00156-g8c46f15-dirty (Sep 05 2018 - 16:24:05 -0300) +Trying to boot from MMC1 +[ 0.000000] Booting Linux on physical CPU 0x0 +[ 0.000000] Linux version 4.19.0-rc2-next-20180905-00001-gb805e2d (fabio@fabio-Latitude-E5450) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)) #533 SMP Wed Sep 5 16:21:03 -03 2018 +[ 0.000000] CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d +[ 0.000000] CPU: div instructions available: patching division code +[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache +[ 0.000000] OF: fdt: Machine model: Technexion Pico i.MX6UL Board +[ 0.000000] Memory policy: Data cache writealloc +[ 0.000000] cma: Reserved 64 MiB at 0x8c000000 +... diff --git a/board/technexion/pico-imx6ul/spl.c b/board/technexion/pico-imx6ul/spl.c new file mode 100644 index 0000000000..6464a32d3b --- /dev/null +++ b/board/technexion/pico-imx6ul/spl.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include <asm/arch/clock.h> +#include <asm/arch/iomux.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/crm_regs.h> +#include <asm/arch/mx6ul_pins.h> +#include <asm/arch/mx6-pins.h> +#include <asm/arch/sys_proto.h> +#include <asm/gpio.h> +#include <asm/mach-imx/iomux-v3.h> +#include <asm/mach-imx/boot_mode.h> +#include <linux/libfdt.h> +#include <spl.h> + +#if defined(CONFIG_SPL_BUILD) + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + return 0; +} +#endif + +#include <asm/arch/mx6-ddr.h> + +static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = { + .grp_addds = 0x00000030, + .grp_ddrmode_ctl = 0x00020000, + .grp_b0ds = 0x00000030, + .grp_ctlds = 0x00000030, + .grp_b1ds = 0x00000030, + .grp_ddrpke = 0x00000000, + .grp_ddrmode = 0x00020000, + .grp_ddr_type = 0x00080000, +}; + +static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = { + .dram_dqm0 = 0x00000030, + .dram_dqm1 = 0x00000030, + .dram_ras = 0x00000030, + .dram_cas = 0x00000030, + .dram_odt0 = 0x00000030, + .dram_odt1 = 0x00000030, + .dram_sdba2 = 0x00000000, + .dram_sdclk_0 = 0x00000030, + .dram_sdqs0 = 0x00000030, + .dram_sdqs1 = 0x00000030, + .dram_reset = 0x00000030, +}; + +static struct mx6_mmdc_calibration mx6_mmcd_calib = { + .p0_mpwldectrl0 = 0x00000000, + .p0_mpdgctrl0 = 0x01380134, + .p0_mprddlctl = 0x40404244, + .p0_mpwrdlctl = 0x40405050, +}; + +static struct mx6_ddr_sysinfo ddr_sysinfo = { + .dsize = 0, + .cs1_mirror = 0, + .cs_density = 32, + .ncs = 1, + .bi_on = 1, + .rtt_nom = 1, + .rtt_wr = 0, + .ralat = 5, + .walat = 0, + .mif3_mode = 3, + .rst_to_cke = 0x23, + .sde_to_rst = 0x10, + .refsel = 1, + .refr = 3, +}; + +static struct mx6_ddr3_cfg mem_ddr = { + .mem_speed = 1333, + .density = 2, + .width = 16, + .banks = 8, + .coladdr = 10, + .pagesz = 2, + .trcd = 1350, + .trcmin = 4950, + .trasmin = 3600, +}; + +static void ccgr_init(void) +{ + struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; + + writel(0xFFFFFFFF, &ccm->CCGR0); + writel(0xFFFFFFFF, &ccm->CCGR1); + writel(0xFFFFFFFF, &ccm->CCGR2); + writel(0xFFFFFFFF, &ccm->CCGR3); + writel(0xFFFFFFFF, &ccm->CCGR4); + writel(0xFFFFFFFF, &ccm->CCGR5); + writel(0xFFFFFFFF, &ccm->CCGR6); +} + +static void imx6ul_spl_dram_cfg_size(u32 ram_size) +{ + if (ram_size == SZ_256M) + mem_ddr.rowaddr = 14; + else + mem_ddr.rowaddr = 15; + + mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); + mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); +} + +static void imx6ul_spl_dram_cfg(void) +{ + ulong ram_size_test, ram_size = 0; + + for (ram_size = SZ_512M; ram_size >= SZ_256M; ram_size >>= 1) { + imx6ul_spl_dram_cfg_size(ram_size); + ram_size_test = get_ram_size((long int *)PHYS_SDRAM, ram_size); + if (ram_size_test == ram_size) + break; + } + + if (ram_size < SZ_256M) { + puts("ERROR: DRAM size detection failed\n"); + hang(); + } +} + +void board_init_f(ulong dummy) +{ + ccgr_init(); + arch_cpu_init(); + board_early_init_f(); + timer_init(); + preloader_console_init(); + imx6ul_spl_dram_cfg(); + memset(__bss_start, 0, __bss_end - __bss_start); + board_init_r(NULL, 0); +} + +void reset_cpu(ulong addr) +{ +} +#endif diff --git a/board/technexion/pico-imx7d/MAINTAINERS b/board/technexion/pico-imx7d/MAINTAINERS index 0755bd8366..f9a1dfc05e 100644 --- a/board/technexion/pico-imx7d/MAINTAINERS +++ b/board/technexion/pico-imx7d/MAINTAINERS @@ -1,11 +1,16 @@ -Technexion PICO-IMX7D board +TechNexion PICO-IMX7D board M: Vanessa Maegima <vanessa.maegima@nxp.com> S: Maintained F: board/technexion/pico-imx7d/ F: include/configs/pico-imx7d.h F: configs/pico-imx7d_defconfig -Technexion PICO-PI-IMX7 +TechNexion PICO-HOBBIT-IMX7 +M: Otavio Salvador <otavio@ossystems.com.br> +S: Maintained +F: configs/pico-hobbit-imx7d_defconfig + +TechNexion PICO-PI-IMX7 M: Otavio Salvador <otavio@ossystems.com.br> S: Maintained F: configs/pico-pi-imx7d_defconfig |