On 1/3/25 7:45 AM, Alice Guo wrote:
From: Ye Li <ye...@nxp.com>
When SPL loading image to secure region, for example, ATF and tee to
DDR secure region. Because the USDHC controller is non-secure master,
it can't access this region and will cause loading issue.
So override h_spl_load_read to use a trampoline buffer in nonsecure
region, then use CPU to copy the image from trampoline buffer to
destination secure region.
Signed-off-by: Ye Li <ye...@nxp.com>
Signed-off-by: Alice Guo <alice....@nxp.com>
Reviewed-by: Peng Fan <peng....@nxp.com>
---
arch/arm/mach-imx/imx9/scmi/soc.c | 40 +++++++++++++++++++++++++++++++++++++++
common/spl/spl_mmc.c | 2 +-
2 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/imx9/scmi/soc.c
b/arch/arm/mach-imx/imx9/scmi/soc.c
index
fefb1a6f4ca58722a5d93c39e4f6a7aaf85aa177..8a7df24afecc1d6d77b7162be639b56af95fd975
100644
--- a/arch/arm/mach-imx/imx9/scmi/soc.c
+++ b/arch/arm/mach-imx/imx9/scmi/soc.c
@@ -41,6 +41,8 @@
#include <scmi_agent.h>
#include <scmi_protocols.h>
#endif
+#include <spl.h>
+#include <mmc.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -830,3 +832,41 @@ enum boot_device get_boot_device(void)
return boot_dev;
}
#endif
+
+ulong h_spl_load_read(struct spl_load_info *load, ulong off,
+ ulong size, void *buf)
Can you simply define spl_get_load_buffer() instead to make sure SPL
loads your stuff into the correct location ?
This hack in generic code is a NAK.
