Hi,
On Fri, 9 Mar 2018 17:35:46 +0000 Bryan O'Donoghue wrote:
> This patch takes a given address applies a plus or minus offset to locate
> the putative address of an IVT given a non-IVT link location.
>
> It then sets hab_ivt_address to allow for further logic/scripting based on
> the calculated address.
>
> This routine is useful when scripting hab_auth_img calls from boot.scr.
> Subsequent patches will illustrate its utility in a board-port.
>
> Signed-off-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
> Cc: Utkarsh Gupta <utkarsh.gu...@nxp.com>
> Cc: Breno Lima <breno.l...@nxp.com>
> Cc: Fabio Estevam <fabio.este...@nxp.com>
> ---
> arch/arm/mach-imx/hab.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
> index c730c8f..0c18b2e 100644
> --- a/arch/arm/mach-imx/hab.c
> +++ b/arch/arm/mach-imx/hab.c
> @@ -341,6 +341,31 @@ static int do_hab_failsafe(cmd_tbl_t *cmdtp, int flag,
> int argc,
> return 0;
> }
>
> +/*
> + * This routine takes a given address and applies a plus or minus offset to
> that
> + * address.
> + */
> +static int do_hab_get_ivt_addr(cmd_tbl_t *cmdtp, int flag, int argc,
> + char * const argv[])
> +{
> + ulong addr;
> + long ivt_offset;
> +
> + if (argc < 3)
> + return CMD_RET_USAGE;
> +
> + if (!imx_hab_is_enabled())
> + return CMD_RET_FAILURE;
> +
> + addr = simple_strtoul(argv[1], NULL, 16);
> + ivt_offset = simple_strtol(argv[2], NULL, 16);
> + addr += ivt_offset;
> +
> + env_set_hex("hab_ivt_addr", addr);
> +
> + return CMD_RET_SUCCESS;
> +}
> +
> U_BOOT_CMD(
> hab_status, CONFIG_SYS_MAXARGS, 1, do_hab_status,
> "display HAB status",
>
What does this function offer, that a
'setexpr hab_ivt_addr ${loadaddr} + 0x400' could not do as well?
Lothar Waßmann
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