[Bug][AST2500]
If SCU00 is not unlocked, just enter its password again.
It is unnecessary to clear AHB lock condition and restore WDT default
setting again, before Fast-reset clearing.
Signed-off-by: KuoHsiang Chou <kuohsiang_chou@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/ast/ast_post.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_post.c b/drivers/gpu/drm/ast/ast_post.c
index 1f0007daa005..4f194c5fd2c2 100644
--- a/drivers/gpu/drm/ast/ast_post.c
+++ b/drivers/gpu/drm/ast/ast_post.c
@@ -2030,7 +2030,6 @@ void ast_patch_ahb_2500(struct ast_private *ast)
{
u32 data;
-patch_ahb_lock:
/* Clear bus lock condition */
ast_moutdwm(ast, 0x1e600000, 0xAEED1A03);
ast_moutdwm(ast, 0x1e600084, 0x00010000);
@@ -2044,11 +2043,9 @@ void ast_patch_ahb_2500(struct ast_private *ast)
ast_moutdwm(ast, 0x1E78500c, 0x00000033);
udelay(1000);
}
- ast_moutdwm(ast, 0x1e6e2000, 0x1688A8A8);
do {
+ ast_moutdwm(ast, 0x1e6e2000, 0x1688A8A8);
data = ast_mindwm(ast, 0x1e6e2000);
- if (data == 0xffffffff)
- goto patch_ahb_lock;
} while (data != 1);
ast_moutdwm(ast, 0x1e6e207c, 0x08000000); /* clear fast reset */
}
--
2.18.4
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