diff options
| author | Michael Walle <michael@walle.cc> | 2020-06-01 22:53:26 +0300 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2020-07-27 11:46:27 +0300 |
| commit | 3d3fe8b12d1973b207ee0406709ff521eec83bf7 (patch) | |
| tree | 99569fc01e92f224208a4563132a762b1957929f /arch | |
| parent | ae846a6119dda1553177ff65dad22c2a0494d9fa (diff) | |
| download | u-boot-3d3fe8b12d1973b207ee0406709ff521eec83bf7.tar.xz | |
armv8: layerscape: properly use CPU_RELEASE_ADDR
The generic armv8 code already has support to bring up the secondary
cores. Thus, don't hardcode the jump in the layerscape lowlevel_init to
the spin table code; instead just return early and let the common armv8
code handle the jump. This way we can actually use the CPU_RELEASE_ADDR
feature.
Signed-off-by: Michael Walle <michael@walle.cc>
[Rebased, Removed kontron_sl28.h change as file does not exist]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S | 14 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/mp.h | 1 |
2 files changed, 12 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S index 2a8d592cc5..d75013eb9c 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S +++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S @@ -208,8 +208,13 @@ ENTRY(lowlevel_init) branch_if_master x0, x1, 2f #if defined(CONFIG_MP) && defined(CONFIG_ARMV8_MULTIENTRY) - ldr x0, =secondary_boot_func - blr x0 + /* + * Formerly, here was a jump to secondary_boot_func, but we just + * return early here and let the generic code in start.S handle + * the jump to secondary_boot_func. + */ + mov lr, x29 /* Restore LR */ + ret #endif 2: @@ -421,6 +426,11 @@ ENDPROC(__asm_flush_l3_dcache) #endif /* CONFIG_SYS_FSL_HAS_CCN504 */ #ifdef CONFIG_MP + .align 3 + .global secondary_boot_addr +secondary_boot_addr: + .quad secondary_boot_func + /* Keep literals not used by the secondary boot code outside it */ .ltorg diff --git a/arch/arm/include/asm/arch-fsl-layerscape/mp.h b/arch/arm/include/asm/arch-fsl-layerscape/mp.h index 00aa91b0a2..623977651a 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/mp.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/mp.h @@ -43,7 +43,6 @@ static inline int fsl_layerscape_wake_seconday_cores(void) { return 0; } #endif void *get_spin_tbl_addr(void); phys_addr_t determine_mp_bootpg(void); -void secondary_boot_func(void); int is_core_online(u64 cpu_id); u32 cpu_pos_mask(void); #endif |