crypto: caam - fix pointer size for AArch64 boot loader, AArch32 kernel

commit 39eaf759466f4e3fbeaa39075512f4f345dffdc8 upstream.

Start with a clean slate before dealing with bit 16 (pointer size)
of Master Configuration Register.
This fixes the case of AArch64 boot loader + AArch32 kernel, when
the boot loader might set MCFGR[PS] and kernel would fail to clear it.

Reported-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-By: Alison Wang <Alison.wang@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 0ec112ee5204302ef01bdc7f5dc30d5184e747b4..2341f3799591e220729e4bc4a076edfcc5e417b3 100644 (file)
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -557,8 +557,9 @@ static int caam_probe(struct platform_device *pdev)
         * Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
         * long pointers in master configuration register
         */
-       clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH |
-                     MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE | MCFGR_LARGE_BURST |
+       clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK | MCFGR_LONG_PTR,
+                     MCFGR_AWCACHE_CACH | MCFGR_AWCACHE_BUFF |
+                     MCFGR_WDENABLE | MCFGR_LARGE_BURST |
                      (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
 
        /*