summaryrefslogtreecommitdiff
path: root/arch/arm/mach-zynq/spl.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-zynq/spl.c')
-rw-r--r--arch/arm/mach-zynq/spl.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/arm/mach-zynq/spl.c b/arch/arm/mach-zynq/spl.c
new file mode 100644
index 0000000..13025f0
--- /dev/null
+++ b/arch/arm/mach-zynq/spl.c
@@ -0,0 +1,90 @@
+/*
+ * (C) Copyright 2014 Xilinx, Inc. Michal Simek
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+#include <common.h>
+#include <spl.h>
+
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/spl.h>
+#include <asm/arch/sys_proto.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void board_init_f(ulong dummy)
+{
+ ps7_init();
+
+ /* Clear the BSS. */
+ memset(__bss_start, 0, __bss_end - __bss_start);
+
+ preloader_console_init();
+ arch_cpu_init();
+ board_init_r(NULL, 0);
+}
+
+#ifdef CONFIG_SPL_BOARD_INIT
+void spl_board_init(void)
+{
+ board_init();
+}
+#endif
+
+u32 spl_boot_device(void)
+{
+ u32 mode;
+
+ switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
+#ifdef CONFIG_SPL_SPI_SUPPORT
+ case ZYNQ_BM_QSPI:
+ puts("qspi boot\n");
+ mode = BOOT_DEVICE_SPI;
+ break;
+#endif
+ case ZYNQ_BM_NAND:
+ mode = BOOT_DEVICE_NAND;
+ break;
+ case ZYNQ_BM_NOR:
+ mode = BOOT_DEVICE_NOR;
+ break;
+#ifdef CONFIG_SPL_MMC_SUPPORT
+ case ZYNQ_BM_SD:
+ puts("mmc boot\n");
+ mode = BOOT_DEVICE_MMC1;
+ break;
+#endif
+ case ZYNQ_BM_JTAG:
+ mode = BOOT_DEVICE_RAM;
+ break;
+ default:
+ puts("Unsupported boot mode selected\n");
+ hang();
+ }
+
+ return mode;
+}
+
+#ifdef CONFIG_SPL_MMC_SUPPORT
+u32 spl_boot_mode(void)
+{
+ return MMCSD_MODE_FS;
+}
+#endif
+
+#ifdef CONFIG_SPL_OS_BOOT
+int spl_start_uboot(void)
+{
+ /* boot linux */
+ return 0;
+}
+#endif
+
+__weak void ps7_init(void)
+{
+ /*
+ * This function is overridden by the one in
+ * board/xilinx/zynq/ps7_init_gpl.c, if it exists.
+ */
+}