Not much to do, there are only a few boot sources supported.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
arch/arm/mach-layerscape/Makefile | 1 +
arch/arm/mach-layerscape/boot.c | 39 +++++++++++++++++++
.../mach-layerscape/include/mach/layerscape.h | 2 +
3 files changed, 42 insertions(+)
create mode 100644 arch/arm/mach-layerscape/boot.c
diff --git a/arch/arm/mach-layerscape/Makefile b/arch/arm/mach-layerscape/Makefile
index 269839254b..ad4e2f7af3 100644
--- a/arch/arm/mach-layerscape/Makefile
+++ b/arch/arm/mach-layerscape/Makefile
@@ -2,3 +2,4 @@ obj- := __dummy__.o
lwl-y += lowlevel.o errata.o
lwl-$(CONFIG_ARCH_LS1046) += lowlevel-ls1046a.o
obj-y += icid.o
+obj-pbl-y += boot.o
diff --git a/arch/arm/mach-layerscape/boot.c b/arch/arm/mach-layerscape/boot.c
new file mode 100644
index 0000000000..c804977d22
--- /dev/null
+++ b/arch/arm/mach-layerscape/boot.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <common.h>
+#include <init.h>
+#include <bootsource.h>
+#include <mach/layerscape.h>
+#include <soc/fsl/immap_lsch2.h>
+
+enum bootsource ls1046_bootsource_get(void)
+{
+ void __iomem *dcfg = IOMEM(LSCH2_DCFG_ADDR);
+ uint32_t rcw_src;
+
+ rcw_src = in_be32(dcfg) >> 23;
+
+ if (rcw_src == 0x40)
+ return BOOTSOURCE_MMC;
+ if ((rcw_src & 0x1fe) == 0x44)
+ return BOOTSOURCE_SPI_NOR;
+ if ((rcw_src & 0x1f0) == 0x10)
+ /* 8bit NOR Flash */
+ return BOOTSOURCE_NOR;
+ if ((rcw_src & 0x1f0) == 0x20)
+ /* 16bit NOR Flash */
+ return BOOTSOURCE_NOR;
+
+ return BOOTSOURCE_UNKNOWN;
+}
+
+static int ls1046a_bootsource_init(void)
+{
+ if (!of_machine_is_compatible("fsl,ls1046a"))
+ return 0;
+
+ bootsource_set(ls1046_bootsource_get());
+
+ return 0;
+}
+coredevice_initcall(ls1046a_bootsource_init);
\ No newline at end of file
diff --git a/arch/arm/mach-layerscape/include/mach/layerscape.h b/arch/arm/mach-layerscape/include/mach/layerscape.h
index 55e0b7bc96..3366e7f258 100644
--- a/arch/arm/mach-layerscape/include/mach/layerscape.h
+++ b/arch/arm/mach-layerscape/include/mach/layerscape.h
@@ -4,4 +4,6 @@
#define LS1046A_DDR_SDRAM_BASE 0x80000000
#define LS1046A_DDR_FREQ 2100000000
+enum bootsource ls1046_bootsource_get(void);
+
#endif /* __MACH_LAYERSCAPE_H */
--
2.20.1
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