Drop the unused arguments from setup(), passing only the fdt.
This allows setup() to be more easily shared with arm64.
Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
arm/cstart.S | 12 ++++++++++--
lib/arm/setup.c | 3 +--
2 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/arm/cstart.S b/arm/cstart.S
index 1e3c3a32375fd..da496e9eae7e0 100644
--- a/arm/cstart.S
+++ b/arm/cstart.S
@@ -19,15 +19,23 @@ start:
/*
* bootloader params are in r0-r2
* See the kernel doc Documentation/arm/Booting
+ * r0 = 0
+ * r1 = machine type number
+ * r2 = physical address of the dtb
+ *
+ * As we have no need for r0's nor r1's value, then
+ * put the dtb in r0. This allows setup to be consistent
+ * with arm64.
*/
ldr sp, =stacktop
- push {r0-r3}
+ mov r0, r2
+ push {r0-r1}
/* set up vector table and mode stacks */
bl exceptions_init
/* complete setup */
- pop {r0-r3}
+ pop {r0-r1}
bl setup
/* run the test */
diff --git a/lib/arm/setup.c b/lib/arm/setup.c
index 9d2094da8a29c..8f58802e958ac 100644
--- a/lib/arm/setup.c
+++ b/lib/arm/setup.c
@@ -62,8 +62,7 @@ static void mem_init(phys_addr_t freemem_start)
mmu_enable_idmap();
}
-void setup(unsigned long arg __unused, unsigned long id __unused,
- const void *fdt)
+void setup(const void *fdt)
{
const char *bootargs;
u32 fdt_size;
--
1.9.3
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