spl: add fixed memory node in target fdt also when loading ATF

In a loading chain SPL -> ATF (->OP-TEE) -> U-Boot, ATF and a subsequent
OP-TEE will re-use the same fdt as the U-Boot target and may need the
information about usable memory ranges.

Especially OP-TEE needs this to initialize dynamic shared memory
(the only type U-Boot implements when talking to OP-TEE).

So allow spl_fixup_fdt() to take a fdt_blob argument, falling back to
the existing CONFIG_SYS_SPL_ARGS_ADDR if needed and call it from the
ATF path as well.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

diff --git a/common/spl/spl.c b/common/spl/spl.c
index 7ea0b06a8017ecd23776c38db2d13b19cbd91ddf..0e96a8cd10406e5b5c1531af64c1301be13a4a0c 100644 (file)
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -61,7 +61,8 @@ static bd_t bdata __attribute__ ((section(".data")));
  */
 __weak void show_boot_progress(int val) {}
 
-#if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF)
+#if defined(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) || \
+       defined(CONFIG_SPL_ATF)
 /* weak, default platform-specific function to initialize dram banks */
 __weak int dram_init_banksize(void)
 {
@@ -103,12 +104,14 @@ void __weak spl_perform_fixups(struct spl_image_info *spl_image)
 {
 }
 
-void spl_fixup_fdt(void)
+void spl_fixup_fdt(void *fdt_blob)
 {
-#if defined(CONFIG_SPL_OF_LIBFDT) && defined(CONFIG_SYS_SPL_ARGS_ADDR)
-       void *fdt_blob = (void *)CONFIG_SYS_SPL_ARGS_ADDR;
+#if defined(CONFIG_SPL_OF_LIBFDT)
        int err;
 
+       if (!fdt_blob)
+               return;
+
        err = fdt_check_header(fdt_blob);
        if (err < 0) {
                printf("fdt_root: %s\n", fdt_strerror(err));
@@ -640,7 +643,8 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
        initr_watchdog();
 #endif
 
-       if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF))
+       if (IS_ENABLED(CONFIG_SPL_OS_BOOT) || CONFIG_IS_ENABLED(HANDOFF) ||
+           IS_ENABLED(CONFIG_SPL_ATF))
                dram_init_banksize();
 
        bootcount_inc();
@@ -682,6 +686,7 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 #if CONFIG_IS_ENABLED(ATF)
        case IH_OS_ARM_TRUSTED_FIRMWARE:
                debug("Jumping to U-Boot via ARM Trusted Firmware\n");
+               spl_fixup_fdt(spl_image.fdt_addr);
                spl_invoke_atf(&spl_image);
                break;
 #endif
@@ -701,7 +706,9 @@ void board_init_r(gd_t *dummy1, ulong dummy2)
 #ifdef CONFIG_SPL_OS_BOOT
        case IH_OS_LINUX:
                debug("Jumping to Linux\n");
-               spl_fixup_fdt();
+#if defined(CONFIG_SYS_SPL_ARGS_ADDR)
+               spl_fixup_fdt((void *)CONFIG_SYS_SPL_ARGS_ADDR);
+#endif
                spl_board_prepare_for_linux();
                jump_to_image_linux(&spl_image);
 #endif