diff options
| author | Teo Hall <teo.hall@nxp.com> | 2018-11-27 14:50:50 -0600 |
|---|---|---|
| committer | Teo Hall <teo.hall@nxp.com> | 2018-11-28 08:17:31 -0600 |
| commit | d6451cc1e162eff89b03dd63e86d55b9baa8885b (patch) | |
| tree | 0ce285a0f4d8f30ec7a114fd20ccce93d31ce0a1 /plat/imx/common/imx8_helpers.S | |
| parent | caa6f51d585bc98e40d872942204a2b1767412c7 (diff) | |
plat: imx8qm/imx8qxp: Add MU flag check for partition rebootimx_4.14.78_1.0.0_ga
Test if a partition reboot has taken place with the MU
interrupt bit. Check before returning the entrypoint
Signed-off-by: Teo Hall <teo.hall@nxp.com>
(cherry picked from commit 627396daa5d9b62e8a0fb118844d1507b94e23f5)
Diffstat (limited to 'plat/imx/common/imx8_helpers.S')
| -rw-r--r-- | plat/imx/common/imx8_helpers.S | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/plat/imx/common/imx8_helpers.S b/plat/imx/common/imx8_helpers.S index 18330281..a8293dce 100644 --- a/plat/imx/common/imx8_helpers.S +++ b/plat/imx/common/imx8_helpers.S @@ -116,6 +116,25 @@ endfunc plat_reset_handler * --------------------------------------------- */ func plat_get_my_entrypoint + +#if defined(PLAT_IMX8QXP) || defined(PLAT_IMX8QM) + /* --------------------------------------------- + * SCU will signal through a GIR bit when a + * partition boot has taken place which requires + * cold boot setup to take place once again + * --------------------------------------------- + */ + + mov x0, #PLAT_BOOT_MU_BASE + add x0, x0, #PLAT_MU_SR_OFF + ldr w1, [x0] + and w1, w1, #PLAT_MU_COLD_BOOT_FLG_MSK + cbz w1, warm_boot + str w1, [x0] + mov x0, #0 + ret +warm_boot: +#endif adrp x1, mailbox_base ldr x0, [x1, :lo12:mailbox_base] ret |