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authorSean Anderson <seanga2@gmail.com>2020-06-24 06:41:17 -0400
committerAndes <uboot@andestech.com>2020-07-01 15:01:21 +0800
commit9472630337e7c4ac442066b5a752aaa8c3b4d4a6 (patch)
tree15f2ed2668c54a0f7dc594d8a555890a817434f9 /drivers/ddr/microchip/ddr2_regs.h
parent309c79f3de4976854b0a80982bd7cb57bcb712d0 (diff)
riscv: Clear pending interrupts before enabling IPIs
On some platforms (k210), the previous stage bootloader may have not cleared pending IPIs before transferring control to U-Boot. This can cause race conditions, as multiple harts all attempt to initialize the IPI controller at once. This patch clears IPIs before enabling them, ensuring that only one hart modifies shared memory at once. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
Diffstat (limited to 'drivers/ddr/microchip/ddr2_regs.h')
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