[U-Boot] [PATCH] OMAP3: workaround for ARM Cortex-A8 erratum 725233

[Siarhei Siamashka]

725233: PLD instructions executed with PLD data forwarding
enabled can result in a processor deadlock

Signed-off-by: Siarhei Siamashka <siarhei.siamashka at gmail.com>
---
 cpu/arm_cortexa8/omap3/board.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/cpu/arm_cortexa8/omap3/board.c b/cpu/arm_cortexa8/omap3/board.c
index 2aa69b3..7b78fa4 100644
--- a/cpu/arm_cortexa8/omap3/board.c
+++ b/cpu/arm_cortexa8/omap3/board.c
@@ -146,6 +146,12 @@ void setup_auxcr()
 	__asm__ __volatile__("orr r0, r0, #1 << 5");
 	/* SMI instruction to call ROM Code API */
 	__asm__ __volatile__(".word 0xE1600070");
+	/* Set PLD_FWD bit in L2AUXCR (Cortex-A8 erratum 725233 workaround) */
+	__asm__ __volatile__("mov r12, #0x2");
+	__asm__ __volatile__("mrc p15, 1, r0, c9, c0, 2");
+	__asm__ __volatile__("orr r0, r0, #1 << 27");
+	/* SMI instruction to call ROM Code API */
+	__asm__ __volatile__(".word 0xE1600070");
 	__asm__ __volatile__("mov r0, %0":"=r"(i));
 	__asm__ __volatile__("mov r12, %0":"=r"(j));
 }
-- 
1.5.4.3