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-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm/cpu/armv8/zynqmp/Makefile1
-rw-r--r--arch/arm/cpu/armv8/zynqmp/spl.c107
-rw-r--r--arch/arm/include/asm/arch-zynqmp/sys_proto.h2
4 files changed, 111 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6b65d8e..729b181 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -594,6 +594,7 @@ config ARCH_ZYNQMP
select DM
select OF_CONTROL
select DM_SERIAL
+ select SUPPORT_SPL
config TEGRA
bool "NVIDIA Tegra"
diff --git a/arch/arm/cpu/armv8/zynqmp/Makefile b/arch/arm/cpu/armv8/zynqmp/Makefile
index d0ed222..be8673a 100644
--- a/arch/arm/cpu/armv8/zynqmp/Makefile
+++ b/arch/arm/cpu/armv8/zynqmp/Makefile
@@ -9,3 +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
diff --git a/arch/arm/cpu/armv8/zynqmp/spl.c b/arch/arm/cpu/armv8/zynqmp/spl.c
new file mode 100644
index 0000000..e3e2a4f
--- /dev/null
+++ b/arch/arm/cpu/armv8/zynqmp/spl.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2015 - 2016 Xilinx, Inc.
+ *
+ * Michal Simek <michal.simek@xilinx.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <spl.h>
+
+#include <asm/io.h>
+#include <asm/spl.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+
+void board_init_f(ulong dummy)
+{
+ psu_init();
+ board_early_init_r();
+
+#ifdef CONFIG_DEBUG_UART
+ /* Uart debug for sure */
+ debug_uart_init();
+ puts("Debug uart enabled\n"); /* or printch() */
+#endif
+ /* Delay is required for clocks to be propagated */
+ udelay(1000000);
+
+ /* Clear the BSS */
+ memset(__bss_start, 0, __bss_end - __bss_start);
+
+ /* No need to call timer init - it is empty for ZynqMP */
+ board_init_r(NULL, 0);
+}
+
+#ifdef CONFIG_SPL_BOARD_INIT
+void spl_board_init(void)
+{
+ preloader_console_init();
+ board_init();
+}
+#endif
+
+u32 spl_boot_device(void)
+{
+ u32 reg = 0;
+ u8 bootmode;
+
+ reg = readl(&crlapb_base->boot_mode);
+ bootmode = reg & BOOT_MODES_MASK;
+
+ switch (bootmode) {
+ case JTAG_MODE:
+ return BOOT_DEVICE_RAM;
+#ifdef CONFIG_SPL_MMC_SUPPORT
+ case EMMC_MODE:
+ case SD_MODE:
+ case SD_MODE1:
+ return BOOT_DEVICE_MMC1;
+#endif
+ default:
+ printf("Invalid Boot Mode:0x%x\n", bootmode);
+ break;
+ }
+
+ return 0;
+}
+
+u32 spl_boot_mode(void)
+{
+ switch (spl_boot_device()) {
+ case BOOT_DEVICE_RAM:
+ return 0;
+ case BOOT_DEVICE_MMC1:
+ return MMCSD_MODE_FS;
+ default:
+ puts("spl: error: unsupported device\n");
+ hang();
+ }
+}
+
+__weak void psu_init(void)
+{
+ /*
+ * This function is overridden by the one in
+ * board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists.
+ */
+}
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+ return 0;
+}
+#endif
+
+#ifdef CONFIG_SPL_LOAD_FIT
+int board_fit_config_name_match(const char *name)
+{
+ /* Just empty function now - can't decide what to choose */
+ debug("%s: %s\n", __func__, name);
+
+ return 0;
+}
+#endif
diff --git a/arch/arm/include/asm/arch-zynqmp/sys_proto.h b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
index 021626d..1db2bd6 100644
--- a/arch/arm/include/asm/arch-zynqmp/sys_proto.h
+++ b/arch/arm/include/asm/arch-zynqmp/sys_proto.h
@@ -17,4 +17,6 @@ int zynq_slcr_get_mio_pin_status(const char *periph);
unsigned int zynqmp_get_silicon_version(void);
+void psu_init(void);
+
#endif /* _ASM_ARCH_SYS_PROTO_H */