From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
arch/arm/cpu/start.c | 28 ++++++++++++++++++++++++++++
arch/arm/lib/Makefile | 1 -
arch/arm/lib/arm.c | 14 --------------
3 files changed, 28 insertions(+), 15 deletions(-)
delete mode 100644 arch/arm/lib/arm.c
diff --git a/arch/arm/cpu/start.c b/arch/arm/cpu/start.c
index d90b244..cd34d9c 100644
--- a/arch/arm/cpu/start.c
+++ b/arch/arm/cpu/start.c
@@ -35,6 +35,7 @@ static noinline __noreturn void __start(uint32_t membase, uint32_t memsize,
uint32_t boarddata)
{
unsigned long endmem = membase + memsize;
+ unsigned long malloc_start, malloc_end;
setup_c();
@@ -50,6 +51,33 @@ static noinline __noreturn void __start(uint32_t membase, uint32_t memsize,
mmu_early_enable(membase, memsize, endmem);
}
+ if ((unsigned long)_text > membase + memsize ||
+ (unsigned long)_text < membase)
+ /*
+ * barebox is either outside SDRAM or in another
+ * memory bank, so we can use the whole bank for
+ * malloc.
+ */
+ malloc_end = endmem;
+ else
+ malloc_end = (unsigned long)_text;
+
+ /*
+ * Maximum malloc space is the Kconfig value if given
+ * or 64MB.
+ */
+ if (MALLOC_SIZE > 0) {
+ malloc_start = malloc_end - MALLOC_SIZE;
+ if (malloc_start < membase)
+ malloc_start = membase;
+ } else {
+ malloc_start = malloc_end - (malloc_end - membase) / 2;
+ if (malloc_end - malloc_start > SZ_64M)
+ malloc_start = malloc_end - SZ_64M;
+ }
+
+ mem_malloc_init((void *)malloc_start, (void *)malloc_end - 1);
+
start_barebox();
}
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 2e624cd..3ea695c 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -4,7 +4,6 @@ obj-$(CONFIG_CMD_BOOTZ) += bootz.o
obj-$(CONFIG_CMD_BOOTU) += bootu.o
obj-y += div0.o
obj-y += findbit.o
-obj-y += arm.o
obj-y += io.o
obj-y += io-readsb.o
obj-y += io-readsw-armv4.o
diff --git a/arch/arm/lib/arm.c b/arch/arm/lib/arm.c
deleted file mode 100644
index 80b62e9..0000000
--- a/arch/arm/lib/arm.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <common.h>
-#include <init.h>
-#include <memory.h>
-#include <asm/barebox-arm.h>
-#include <asm-generic/memory_layout.h>
-
-static int arm_mem_malloc_init(void)
-{
- mem_malloc_init((void *)MALLOC_BASE,
- (void *)(MALLOC_BASE + MALLOC_SIZE - 1));
- return 0;
-}
-
-core_initcall(arm_mem_malloc_init);
--
1.7.10.4
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