Enable D and I caches on mx31pdk.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com --- Stefano,
You explained that enabling cache may cause some drivers like FEC and MMC not to work properly. As mx31pdk does not have FEC or MMC driver I thought this should be OK.
Tested by booting Linux kernel via TFTP and mounting a NFS rootfs.
board/freescale/mx31pdk/mx31pdk.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx31pdk/mx31pdk.c b/board/freescale/mx31pdk/mx31pdk.c index 9f8bc53..1d7b4f6 100644 --- a/board/freescale/mx31pdk/mx31pdk.c +++ b/board/freescale/mx31pdk/mx31pdk.c @@ -71,11 +71,19 @@ int board_early_init_f(void) return 0; }
+void enable_caches(void) +{ + icache_enable(); + dcache_enable(); +} + int board_init(void) { /* adress of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+ enable_caches(); + return 0; }