iwlwifi: pcie: support secured boot flow for family 8000 B step (afb88917) · Commits · 戴 / test

The driver loads the 2 CPU sections, then it needs to let the firmware know to start the authentication of the sections. This is done by writing the relevants bits to FH_UCODE_LOAD_STATUS. For CPU1, the driver sets the lower 16 bits. For both CPUs, the driver sets all the 32 bits. Signed-off-by:

Eran Harary <eran.harary@intel.com> Signed-off-by:

Emmanuel Grumbach <emmanuel.grumbach@intel.com>

drivers/net/wireless/iwlwifi/pcie/trans.c

+5 −3

Original line number	Diff line number	Diff line
		@@ -722,6 +722,11 @@ static int iwl_pcie_load_cpu_sections_8000b(struct iwl_trans *trans,

		*first_ucode_section = last_read_idx;

		if (cpu == 1)
		iwl_write_direct32(trans, FH_UCODE_LOAD_STATUS, 0xFFFF);
		else
		iwl_write_direct32(trans, FH_UCODE_LOAD_STATUS, 0xFFFFFFFF);

		return 0;
		}

		@@ -911,9 +916,6 @@ static int iwl_pcie_load_given_ucode_8000b(struct iwl_trans *trans,
		if (trans->dbg_dest_tlv)
		iwl_pcie_apply_destination(trans);

		/* Notify FW loading is done */
		iwl_write_direct32(trans, FH_UCODE_LOAD_STATUS, 0xFFFFFFFF);

		/* wait for image verification to complete */
		ret = iwl_poll_prph_bit(trans, LMPM_SECURE_BOOT_CPU1_STATUS_ADDR_B0,
		LMPM_SECURE_BOOT_STATUS_SUCCESS,

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