This solves some RX problems that have been seen, when using the mvneta ethernet driver. The cache needs to be reset into a "clean" state before using it.
Signed-off-by: Stefan Roese sr@denx.de Tested-by: Kevin Smith kevin.smith@elecsyscorp.com Tested-by: Dirk Eibach dirk.eibach@gdsys.cc ---
Changes in v3: None Changes in v2: None
arch/arm/mach-mvebu/cpu.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-mvebu/cpu.c b/arch/arm/mach-mvebu/cpu.c index 8058fad..04681fc 100644 --- a/arch/arm/mach-mvebu/cpu.c +++ b/arch/arm/mach-mvebu/cpu.c @@ -240,6 +240,9 @@ int cpu_eth_init(bd_t *bis) #ifndef CONFIG_SYS_DCACHE_OFF void enable_caches(void) { + /* Avoid problem with e.g. neta ethernet driver */ + invalidate_dcache_all(); + /* Enable D-cache. I-cache is already enabled in start.S */ dcache_enable(); }