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| author | Alison Wang <b18965@freescale.com> | 2016-11-10 02:49:04 (GMT) |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2016-11-22 19:40:24 (GMT) |
| commit | e2c18e40b111470fbe1aca47b58570099695f10a (patch) | |
| tree | 8dfe3aa38868f70e14ba5d817f4a158e5636d74c /arch/arm/lib | |
| parent | ec6617c39741adc6c54952564579e32c3c09c66f (diff) | |
| download | u-boot-fsl-qoriq-e2c18e40b111470fbe1aca47b58570099695f10a.tar.xz | |
armv8: fsl-layerscape: SMP support for loading 32-bit OS
Spin-table method is used for secondary cores to load 32-bit OS. The
architecture information will be got through checking FIT image and
saved in the os_arch element of spin-table, then the secondary cores
will check os_arch and jump to 32-bit OS or 64-bit OS automatically.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Chenhui Zhao <chenhui.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/bootm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 6f3be8b..35e6b06 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -277,6 +277,10 @@ bool armv7_boot_nonsec(void) #endif #ifdef CONFIG_ARM64 +__weak void update_os_arch_secondary_cores(uint8_t os_arch) +{ +} + #ifdef CONFIG_ARMV8_SWITCH_TO_EL1 static void switch_to_el1(void) { @@ -314,6 +318,8 @@ static void boot_jump_linux(bootm_headers_t *images, int flag) if (!fake) { do_nonsec_virt_switch(); + update_os_arch_secondary_cores(images->os.arch); + #ifdef CONFIG_ARMV8_SWITCH_TO_EL1 armv8_switch_to_el2((u64)images->ft_addr, 0, 0, (u64)switch_to_el1, ES_TO_AARCH64); |