Merge tag 'xilinx-for-v2017.03' of git://www.denx.de/git/u-boot-microblaze

Xilinx changes for v2017.03

- ATF handoff
- DT syncups
- gem: Use wait_for_bit(), add simple clk support
- Simple clk driver for ZynqMP
- Other small changes

4 files changed, 91 insertions, 1 deletions

diff --git a/arch/arm/cpu/armv8/zynqmp/Kconfig b/arch/arm/cpu/armv8/zynqmp/Kconfig
index e175e6e..499e1dd 100644
--- a/arch/arm/cpu/armv8/zynqmp/Kconfig
+++ b/arch/arm/cpu/armv8/zynqmp/Kconfig
@@ -28,6 +28,7 @@ config SYS_BOARD
 	default "zynqmp"
 
 config SYS_VENDOR
+	string "Vendor name"
 	default "xilinx"
 
 config SYS_SOC
diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile
index be8673a..013f136 100644
--- a/arch/arm/cpu/armv8/zynqmp/Makefile
+++ b/arch/arm/cpu/armv8/zynqmp/Makefile
@@ -9,4 +9,4 @@ obj-y	+= clk.o
 obj-y	+= cpu.o
 obj-$(CONFIG_MP)	+= mp.o
 obj-y	+= slcr.o
-obj-$(CONFIG_SPL_BUILD) += spl.o
+obj-$(CONFIG_SPL_BUILD) += spl.o handoff.o
diff --git a/arch/arm/cpu/armv8/zynqmp/handoff.c b/arch/arm/cpu/armv8/zynqmp/handoff.c
new file mode 100644
index 0000000..25d6ef3
--- /dev/null
+++ b/arch/arm/cpu/armv8/zynqmp/handoff.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2016 - 2017 Xilinx, Inc.
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+
+/*
+ * atfhandoffparams
+ * Parameter	bitfield	encoding
+ * -----------------------------------------------------------------------------
+ * Exec State	0	0 -> Aarch64, 1-> Aarch32
+ * endianness	1	0 -> LE, 1 -> BE
+ * secure (TZ)	2	0 -> Non secure, 1 -> secure
+ * EL		3:4	00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3
+ * CPU#		5:6	00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3
+ */
+
+#define FSBL_FLAGS_ESTATE_SHIFT		0
+#define FSBL_FLAGS_ESTATE_MASK		(1 << FSBL_FLAGS_ESTATE_SHIFT)
+#define FSBL_FLAGS_ESTATE_A64		0
+#define FSBL_FLAGS_ESTATE_A32		1
+
+#define FSBL_FLAGS_ENDIAN_SHIFT		1
+#define FSBL_FLAGS_ENDIAN_MASK		(1 << FSBL_FLAGS_ENDIAN_SHIFT)
+#define FSBL_FLAGS_ENDIAN_LE		0
+#define FSBL_FLAGS_ENDIAN_BE		1
+
+#define FSBL_FLAGS_TZ_SHIFT		2
+#define FSBL_FLAGS_TZ_MASK		(1 << FSBL_FLAGS_TZ_SHIFT)
+#define FSBL_FLAGS_NON_SECURE		0
+#define FSBL_FLAGS_SECURE		1
+
+#define FSBL_FLAGS_EL_SHIFT		3
+#define FSBL_FLAGS_EL_MASK		(3 << FSBL_FLAGS_EL_SHIFT)
+#define FSBL_FLAGS_EL0			0
+#define FSBL_FLAGS_EL1			1
+#define FSBL_FLAGS_EL2			2
+#define FSBL_FLAGS_EL3			3
+
+#define FSBL_FLAGS_CPU_SHIFT		5
+#define FSBL_FLAGS_CPU_MASK		(3 << FSBL_FLAGS_CPU_SHIFT)
+#define FSBL_FLAGS_A53_0		0
+#define FSBL_FLAGS_A53_1		1
+#define FSBL_FLAGS_A53_2		2
+#define FSBL_FLAGS_A53_3		3
+
+#define FSBL_MAX_PARTITIONS		8
+
+/* Structure corresponding to each partition entry */
+struct xfsbl_partition {
+	uint64_t entry_point;
+	uint64_t flags;
+};
+
+/* Structure for handoff parameters to ARM Trusted Firmware (ATF) */
+struct xfsbl_atf_handoff_params {
+	uint8_t magic[4];
+	uint32_t num_entries;
+	struct xfsbl_partition partition[FSBL_MAX_PARTITIONS];
+};
+
+#ifdef CONFIG_SPL_OS_BOOT
+void handoff_setup(void)
+{
+	struct xfsbl_atf_handoff_params *atfhandoffparams;
+
+	atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE;
+	atfhandoffparams->magic[0] = 'X';
+	atfhandoffparams->magic[1] = 'L';
+	atfhandoffparams->magic[2] = 'N';
+	atfhandoffparams->magic[3] = 'X';
+
+	atfhandoffparams->num_entries = 1;
+	atfhandoffparams->partition[0].entry_point = CONFIG_SYS_TEXT_BASE;
+	atfhandoffparams->partition[0].flags = FSBL_FLAGS_EL2 <<
+					       FSBL_FLAGS_EL_SHIFT;
+
+	writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6);
+}
+#endif
diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c
index f5f550f..0a5f430 100644
--- a/arch/arm/cpu/armv8/zynqmp/spl.c
+++ b/arch/arm/cpu/armv8/zynqmp/spl.c
@@ -128,6 +128,8 @@ __weak void psu_init(void)
 #ifdef CONFIG_SPL_OS_BOOT
 int spl_start_uboot(void)
 {
+	handoff_setup();
+
 	return 0;
 }
 #endif