[U-Boot] [PATCH v2 4/6] arm: mach-omap2: am33xx: Add FDT fixup suport for AM33xx/AM43xx boards

[Andrew F. Davis]

Similar to what is done with OMAP5 class boards we need to
perform fixups common to this SoC class, add support for this here
and add HS fixups.

Signed-off-by: Andrew F. Davis <afd at ti.com>
---
 arch/arm/mach-omap2/am33xx/Makefile |  1 +
 arch/arm/mach-omap2/am33xx/fdt.c    | 43 +++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 arch/arm/mach-omap2/am33xx/fdt.c

diff --git a/arch/arm/mach-omap2/am33xx/Makefile b/arch/arm/mach-omap2/am33xx/Makefile
index b2f8158e73..9d4f83cb75 100644
--- a/arch/arm/mach-omap2/am33xx/Makefile
+++ b/arch/arm/mach-omap2/am33xx/Makefile
@@ -23,6 +23,7 @@ obj-y	+= board.o
 obj-y	+= mux.o
 obj-y	+= prcm-regs.o
 obj-y	+= hw_data.o
+obj-y	+= fdt.o
 
 obj-$(CONFIG_CLOCK_SYNTHESIZER)	+= clk_synthesizer.o
 
diff --git a/arch/arm/mach-omap2/am33xx/fdt.c b/arch/arm/mach-omap2/am33xx/fdt.c
new file mode 100644
index 0000000000..02e8243800
--- /dev/null
+++ b/arch/arm/mach-omap2/am33xx/fdt.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017 Texas Instruments, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <fdt_support.h>
+#include <malloc.h>
+
+#include <asm/omap_common.h>
+#include <asm/arch-am33xx/sys_proto.h>
+
+#ifdef CONFIG_TI_SECURE_DEVICE
+
+static void ft_hs_fixups(void *fdt, bd_t *bd)
+{
+	/* Check we are running on an HS/EMU device type */
+	if (GP_DEVICE != get_device_type()) {
+		if ((ft_hs_disable_rng(fdt, bd) == 0) &&
+		    (ft_hs_fixup_dram(fdt, bd) == 0) &&
+		    (ft_hs_add_tee(fdt, bd) == 0))
+			return;
+	} else {
+		printf("ERROR: Incorrect device type (GP) detected!");
+	}
+	/* Fixup failed or wrong device type */
+	hang();
+}
+#else
+static void ft_hs_fixups(void *fdt, bd_t *bd) { }
+#endif /* #ifdef CONFIG_TI_SECURE_DEVICE */
+
+/*
+ * Place for general cpu/SoC FDT fixups. Board specific
+ * fixups should remain in the board files which is where
+ * this function should be called from.
+ */
+void ft_cpu_setup(void *fdt, bd_t *bd)
+{
+	ft_hs_fixups(fdt, bd);
+}
-- 
2.13.0