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armv8: layerscape: spl: mark OCRAM as non-secure

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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>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Michael Walle 2022-08-23 11:30:14 +02:00 committed by Peng Fan
parent 427aa3c9b7
commit 6622c30f2e
1 changed files with 13 additions and 0 deletions
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13
arch/arm/cpu/armv8/fsl-layerscape/spl.c
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@ -67,11 +67,24 @@ 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.
*/
#ifdef TZPCR0SIZE_BASE
out_le32(TZPCR0SIZE_BASE, 0);
#endif
}
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))