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authorSean Anderson <seanga2@gmail.com>2020-06-24 13:41:18 +0300
committerAndes <uboot@andestech.com>2020-07-01 10:01:22 +0300
commit40686c394e533fec765fe237936e353c84e73fff (patch)
tree10bb96dd905e11d36f6e8f81806f167b5b66676a /common/spl
parent9472630337e7c4ac442066b5a752aaa8c3b4d4a6 (diff)
downloadu-boot-40686c394e533fec765fe237936e353c84e73fff.tar.xz
riscv: Clean up IPI initialization code
The previous IPI code initialized the device whenever the first call was made to a riscv_*_ipi function. This made it difficult to determine when the IPI device was initialized. This patch introduces a new function riscv_init_ipi. It is called once during arch_cpu_init_dm. In SPL, it is called in spl_invoke_opensbi. Before this point, no riscv_*_ipi functions should be called. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Rick Chen <rick@andestech.com>
Diffstat (limited to 'common/spl')
-rw-r--r--common/spl/spl_opensbi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/common/spl/spl_opensbi.c b/common/spl/spl_opensbi.c
index e88136e6f3..defddac8f2 100644
--- a/common/spl/spl_opensbi.c
+++ b/common/spl/spl_opensbi.c
@@ -79,6 +79,11 @@ void spl_invoke_opensbi(struct spl_image_info *spl_image)
invalidate_icache_all();
#ifdef CONFIG_SPL_SMP
+ /* Initialize the IPI before we use it */
+ ret = riscv_init_ipi();
+ if (ret)
+ hang();
+
/*
* Start OpenSBI on all secondary harts and wait for acknowledgment.
*