By default the OCRAM is marked as secure. While the SPL runs in EL3 and thus can access it, DMA devices cannot. Mark the whole OCRAM as non-secure. This will fix MMC and SD card boot on LS1028A when using SPL instead of TF-A.
Signed-off-by: Michael Walle michael@walle.cc --- arch/arm/cpu/armv8/fsl-layerscape/spl.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spl.c b/arch/arm/cpu/armv8/fsl-layerscape/spl.c index 5f09ef0a4a..f57ab85dab 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/spl.c +++ b/arch/arm/cpu/armv8/fsl-layerscape/spl.c @@ -67,11 +67,22 @@ void spl_board_init(void) #endif }
+void tzpc_init(void) +{ + /* + * Mark the whole OCRAM as non-secure, otherwise DMA devices cannot + * access it. This is for example necessary for MMC boot. + */ + out_le32(TZPCR0SIZE_BASE, 0); +} + void board_init_f(ulong dummy) { int ret;
icache_enable(); + tzpc_init(); + /* Clear global data */ memset((void *)gd, 0, sizeof(gd_t)); if (IS_ENABLED(CONFIG_DEBUG_UART))