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| author | Ahmad Fatoum <ahmad@a3f.at> | 2019-11-15 08:52:56 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-11-19 11:57:25 +0100 |
| commit | 301893f3a91335e0fa569909cded5b56900ae1cb (patch) | |
| tree | 8c4e075aaf5e02271901653a814f9b93605bfb96 /arch/arm/cpu | |
| parent | c227eac51a8a0132ffcc9851072eb165e1eb7e14 (diff) | |
| download | barebox-301893f3a91335e0fa569909cded5b56900ae1cb.tar.gz barebox-301893f3a91335e0fa569909cded5b56900ae1cb.tar.xz | |
commands: smc: verify PSCI_POWER_ON with interprocessor handshake
The use of psci_printf here, at least for the phytec-phycore-imx7,
is racy, because access to the UART is not synchronized. This may
lead to characters being swallowed and most certainly to garbled
text. One way around this would be using separate UART ports for
each core or even more generically, just dropping psci_printf and
resorting to inter-core communication over shared-memory to check
whether code execution succeeded.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/cpu/Makefile b/arch/arm/cpu/Makefile index 09b3bc2eea..75cd42a5e2 100644 --- a/arch/arm/cpu/Makefile +++ b/arch/arm/cpu/Makefile @@ -2,7 +2,7 @@ obj-y += cpu.o obj-$(CONFIG_ARM_EXCEPTIONS) += exceptions$(S64).o interrupts$(S64).o obj-$(CONFIG_MMU) += mmu$(S64).o mmu-common.o -lwl-y += lowlevel$(S64).o +obj-pbl-y += lowlevel$(S64).o obj-pbl-$(CONFIG_MMU) += mmu-early$(S64).o obj-pbl-$(CONFIG_CPU_32v7) += hyp.o AFLAGS_hyp.o :=-Wa,-march=armv7-a -Wa,-mcpu=all |