From ac4f1718db41ef0550c9faf3188f3c7a54c9f024 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 27 Oct 2015 10:18:45 +0100 Subject: bsp/qoriq: Invalidate L1 cache on boot processor --- c/src/lib/libbsp/powerpc/qoriq/start/start.S | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index 4499850b5b..10daf32c8a 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -60,6 +60,26 @@ _start: bl bsp_fdt_copy #endif /* U_BOOT_USE_FDT */ + /* Invalidate L1 data cache */ + mfspr r3, FSL_EIS_L1CSR0 + ori r3, r3, FSL_EIS_L1CSR0_CFI + mtspr FSL_EIS_L1CSR0, r3 +1: + mfspr r3, FSL_EIS_L1CSR0 + andi. r3, r3, FSL_EIS_L1CSR0_CFI + bne 1b + isync + + /* Invalidate L1 instruction cache */ + mfspr r3, FSL_EIS_L1CSR1 + ori r3, r3, FSL_EIS_L1CSR1_ICFI + mtspr FSL_EIS_L1CSR1, r3 +1: + mfspr r3, FSL_EIS_L1CSR1 + andi. r3, r3, FSL_EIS_L1CSR1_ICFI + bne 1b + isync + /* Get start stack */ LWI START_STACK, start_stack_end -- cgit v1.2.3