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* imx: replace CONFIG_SECURE_BOOT with CONFIG_IMX_HABStefano Babic2019-10-081-1/+1
| | | | | | | | CONFIG_SECURE_BOOT is too generic and forbids to use it for cross architecture purposes. If Secure Boot is required for imx, this means to enable and use the HAB processor in the soc. Signed-off-by: Stefano Babic <sbabic@denx.de>
* imx6: spl: Reduce SPL limit size in case CONFIG_SECURE_BOOT is enabledBreno Matheus Lima2019-10-081-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In case CONFIG_SECURE_BOOT is enabled we need to limit the SPL size to avoid a possible HAB failure event: --------- HAB Event 1 ----------------- event data: 0xdb 0x00 0x14 0x42 0x33 0x22 0x33 0x00 0x00 0x00 0x00 0x0f 0x00 0x90 0x70 0x00 0x00 0x01 0x10 0x00 STS = HAB_FAILURE (0x33) RSN = HAB_INV_ADDRESS (0x22) CTX = HAB_CTX_TARGET (0x33) ENG = HAB_ENG_ANY (0x00) As explained in Commit 23612534fe0f ("spl: imx6: Provide a SPL_SIZE_LIMIT default") the i.MX6 SPL size limit is 68KB. The ROM code is copying the image size defined in boot data to its respective load address, in case we exceed the OCRAM free region a HAB invalid address failure event is generated. The maximum CSF size is defined in CONFIG_CSF_SIZE, reduce SPL size limit based on this configuration. Signed-off-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com>
* spl: add overall SPL size checkSimon Goldschmidt2019-06-071-0/+30
This adds a size check for SPL that can dynamically check generated SPL binaries (including devicetree) for a size limit that ensures this image plus global data, heap and stack fit in initial SRAM. Since some of these sizes are not available to make, a new host tool 'spl_size_limit' is added that dumps the resulting maximum size for an SPL binary to stdout. This tool is used in toplevel Makefile to implement the size check on SPL binaries. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>