From c7936ef2c7b70f892c96f11fe318c4e1a7214d61 Mon Sep 17 00:00:00 2001 From: Andrey Smirnov Date: Mon, 27 May 2019 22:45:13 -0700 Subject: Documentation: zii-imx8mq-dev: Update OpenOCD usage documentation Update various files in zii-imx8mq-dev: - Add bootstrap.sh to match other boards - Cosmetic update to openocd.cfg to match the style of other ZII boards - Update readme.rst to reflecte the chagnes Signed-off-by: Andrey Smirnov Signed-off-by: Sascha Hauer --- .../boards/imx/zii-imx8mq-dev/bootstrap.sh | 6 ++ .../boards/imx/zii-imx8mq-dev/openocd.cfg | 99 +++++++++++----------- Documentation/boards/imx/zii-imx8mq-dev/readme.rst | 4 +- 3 files changed, 59 insertions(+), 50 deletions(-) create mode 100755 Documentation/boards/imx/zii-imx8mq-dev/bootstrap.sh diff --git a/Documentation/boards/imx/zii-imx8mq-dev/bootstrap.sh b/Documentation/boards/imx/zii-imx8mq-dev/bootstrap.sh new file mode 100755 index 0000000000..7342e890ec --- /dev/null +++ b/Documentation/boards/imx/zii-imx8mq-dev/bootstrap.sh @@ -0,0 +1,6 @@ +#!/bin/sh + +OPENOCD=${OPENOCD:-openocd} +DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd) + +${OPENOCD} -f ${DIR}/openocd.cfg --command "adapter_khz 10000; init; reset init; start_barebox" diff --git a/Documentation/boards/imx/zii-imx8mq-dev/openocd.cfg b/Documentation/boards/imx/zii-imx8mq-dev/openocd.cfg index 31f94227e6..cc0bec6b74 100644 --- a/Documentation/boards/imx/zii-imx8mq-dev/openocd.cfg +++ b/Documentation/boards/imx/zii-imx8mq-dev/openocd.cfg @@ -1,3 +1,7 @@ +# +# Board configuration file for the Zodiac RDU3 boards +# + interface ftdi ftdi_vid_pid 0x0403 0x6011 @@ -5,13 +9,11 @@ ftdi_layout_init 0x0038 0x003b ftdi_layout_signal nSRST -data 0x0010 ftdi_layout_signal LED -data 0x0020 -# Board has a standard ARM-20 JTAG connector with -# nSRST available. -reset_config srst_only srst_push_pull connect_deassert_srst - # select JTAG transport select jtag +reset_config srst_only srst_push_pull connect_deassert_srst + # set a slow default JTAG clock, can be overridden later adapter_khz 1000 @@ -27,60 +29,61 @@ source [find target/imx8m.cfg] source [find mem_helper.tcl] proc ddr_init { } { - # - # We use the same start address as is configured in our i.MX boot - # header (address originally taken from U-Boot). - # - set IMX8MQ_TCM_BASE_ADDR 0x007e1000 - set IMX8MQ_TCM_MAX_SIZE 0x3f000 - # - # Header word at offset 0x28 is not used on AArch64 and is just - # filled with placeholder value 0xffff_ffff, see - # arch/arm/include/asm/barebox-arm-head.h for more details - # - set RDU3_TCM_MAIC_LOCATION [expr $IMX8MQ_TCM_BASE_ADDR + 0x28] - set RDU3_TCM_MAGIC_REQUEST 0xdeadbeef - set RDU3_TCM_MAGIC_REPLY 0xbaadf00d - - echo "==== Uploading DDR helper ====" - - halt - load_image images/start_zii_imx8mq_dev.pblb \ - $IMX8MQ_TCM_BASE_ADDR \ + echo "Bootstrap: Initializing DDR" + # + # We use the same start address as is configured in our i.MX boot + # header (address originally taken from U-Boot). + # + set IMX8MQ_TCM_BASE_ADDR 0x007e1000 + set IMX8MQ_TCM_MAX_SIZE 0x3f000 + # + # Header word at offset 0x28 is not used on AArch64 and is just + # filled with placeholder value 0xffff_ffff, see + # arch/arm/include/asm/barebox-arm-head.h for more details + # + set RDU3_TCM_MAIC_LOCATION [expr $IMX8MQ_TCM_BASE_ADDR + 0x28] + set RDU3_TCM_MAGIC_REQUEST 0xdeadbeef + set RDU3_TCM_MAGIC_REPLY 0xbaadf00d + + echo "Bootstrap: Uploading DDR helper" + + halt + load_image images/start_zii_imx8mq_dev.pblb \ + $IMX8MQ_TCM_BASE_ADDR \ bin \ $IMX8MQ_TCM_BASE_ADDR \ $IMX8MQ_TCM_MAX_SIZE - echo "==== Running DDR helper ====" + echo "Bootstrap: Running DDR helper" - mww phys $RDU3_TCM_MAIC_LOCATION $RDU3_TCM_MAGIC_REQUEST - resume $IMX8MQ_TCM_BASE_ADDR + mww phys $RDU3_TCM_MAIC_LOCATION $RDU3_TCM_MAGIC_REQUEST + resume $IMX8MQ_TCM_BASE_ADDR - echo "==== Waiting for DDR helper to finish ====" + echo "Bootstrap: Waiting for DDR helper to finish" - if {[catch {wait_halt} errmsg] || - [mrw $RDU3_TCM_MAIC_LOCATION] != $RDU3_TCM_MAGIC_REPLY} { - echo "==== DDR initialization FAILED ====" - } else { - echo "==== DDR is ready ====" - } + if {[catch {wait_halt} errmsg] || + [mrw $RDU3_TCM_MAIC_LOCATION] != $RDU3_TCM_MAGIC_REPLY} { + echo "Bootstrap: DDR initialization FAILED" + } else { + echo "Bootstrap: DDR is ready" + } } proc start_barebox {} { - # - # We have to place our image at MX8MQ_ATF_BL33_BASE_ADDR in order - # to be able to initialize ATF firmware since that's where it - # expects entry point to BL33 would be - # - set MX8MQ_ATF_BL33_BASE_ADDR 0x40200000 - - echo "==== Starting Barebox ====" - load_image images/start_zii_imx8mq_dev.pblb $MX8MQ_ATF_BL33_BASE_ADDR bin - resume $MX8MQ_ATF_BL33_BASE_ADDR + # + # We have to place our image at MX8MQ_ATF_BL33_BASE_ADDR in order + # to be able to initialize ATF firmware since that's where it + # expects entry point to BL33 would be + # + set MX8MQ_ATF_BL33_BASE_ADDR 0x40200000 + echo "Bootstrap: Loading Barebox" + load_image images/start_zii_imx8mq_dev.pblb $MX8MQ_ATF_BL33_BASE_ADDR bin + echo [format "Bootstrap: Jumping to 0x%08x" $MX8MQ_ATF_BL33_BASE_ADDR] + resume $MX8MQ_ATF_BL33_BASE_ADDR } -# proc board_init { } { -# ddr_init -# } +proc board_init { } { + ddr_init +} -# ${_TARGETNAME}.0 configure -event reset-init { board_init } +${_TARGETNAME}.0 configure -event reset-init { board_init } diff --git a/Documentation/boards/imx/zii-imx8mq-dev/readme.rst b/Documentation/boards/imx/zii-imx8mq-dev/readme.rst index dc031e4af4..363e00e6ca 100644 --- a/Documentation/boards/imx/zii-imx8mq-dev/readme.rst +++ b/Documentation/boards/imx/zii-imx8mq-dev/readme.rst @@ -20,5 +20,5 @@ follows: .. code-block:: sh - cd barebox - openocd -f Documentation/boards/imx/zii-imx8mq-dev/openocd.cfg --command "init; ddr_init; start_barebox" + cd barebox + Documentation/boards/imx/zii-imx8mq-dev/bootstrap.sh -- cgit v1.2.3