Merge tag 'u-boot-stm32-20200514' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm

- stm32mp1: migrate MTD and DFU configuration in Kconfig
- stm32mp1: add command stm32prog
- stm32mp1: several board and arch updates
- stm32mp1: activate data cache in SPL and before relocation
- Many improvment for AV96 board and DHCOR SoM
  (add new defconfig, DDR3 coding on DHCOR SoM, split between board and SOM
   Synchronize DDR setttings on DH SoMs, setting for I2C EEPROM)
- clk: stm32mp1: fix CK_MPU calculation
- DT alignment of stm32mp1 device tree with Linux 5.7-rc2

1 files changed, 25 insertions, 0 deletions

diff --git a/arch/arm/mach-stm32mp/fdt.c b/arch/arm/mach-stm32mp/fdt.c
index 3ee7d6a8337..21b5f09728c 100644
--- a/arch/arm/mach-stm32mp/fdt.c
+++ b/arch/arm/mach-stm32mp/fdt.c
@@ -5,6 +5,7 @@
 
 #include <common.h>
 #include <fdt_support.h>
+#include <tee.h>
 #include <asm/arch/sys_proto.h>
 #include <dt-bindings/pinctrl/stm32-pinfunc.h>
 #include <linux/io.h>
@@ -218,6 +219,26 @@ static void stm32_fdt_disable(void *fdt, int offset, u32 addr,
 		       string, addr, name);
 }
 
+static void stm32_fdt_disable_optee(void *blob)
+{
+	int off, node;
+
+	off = fdt_node_offset_by_compatible(blob, -1, "linaro,optee-tz");
+	if (off >= 0 && fdtdec_get_is_enabled(blob, off))
+		fdt_status_disabled(blob, off);
+
+	/* Disabled "optee@..." reserved-memory node */
+	off = fdt_path_offset(blob, "/reserved-memory/");
+	if (off < 0)
+		return;
+	for (node = fdt_first_subnode(blob, off);
+	     node >= 0;
+	     node = fdt_next_subnode(blob, node)) {
+		if (!strncmp(fdt_get_name(blob, node, NULL), "optee@", 6))
+			fdt_status_disabled(blob, node);
+	}
+}
+
 /*
  * This function is called right before the kernel is booted. "blob" is the
  * device tree that will be passed to the kernel.
@@ -302,5 +323,9 @@ int ft_system_setup(void *blob, bd_t *bd)
 				       "st,package", pkg, false);
 	}
 
+	if (!CONFIG_IS_ENABLED(OPTEE) ||
+	    !tee_find_device(NULL, NULL, NULL, NULL))
+		stm32_fdt_disable_optee(blob);
+
 	return ret;
 }