On 1/3/25 7:45 AM, Alice Guo wrote:
From: Ye Li ye.li@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.li@nxp.com Signed-off-by: Alice Guo alice.guo@nxp.com Reviewed-by: Peng Fan peng.fan@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.