From de40614e92bf1b0308d953387b0cb9d3a5710186 Mon Sep 17 00:00:00 2001 From: Joonsoo Kim Date: Fri, 5 Apr 2013 03:16:51 +0100 Subject: ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch() tcm_init() call iotable_init() and it use early_alloc variants which do memblock allocation. Directly using memblock allocation after initializing bootmem should not permitted, because bootmem can't know where are additinally reserved. So move tcm_init() to a safe place before initalizing bootmem. (On the U300) Tested-by: Linus Walleij Signed-off-by: Joonsoo Kim Signed-off-by: Russell King --- arch/arm/mm/mmu.c | 2 ++ arch/arm/mm/tcm.h | 17 +++++++++++++++++ 2 files changed, 19 insertions(+) create mode 100644 arch/arm/mm/tcm.h (limited to 'arch/arm/mm') diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 78978945492a..a84ff763ac39 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -34,6 +34,7 @@ #include #include "mm.h" +#include "tcm.h" /* * empty_zero_page is a special page that is used for @@ -1277,6 +1278,7 @@ void __init paging_init(struct machine_desc *mdesc) dma_contiguous_remap(); devicemaps_init(mdesc); kmap_init(); + tcm_init(); top_pmd = pmd_off_k(0xffff0000); diff --git a/arch/arm/mm/tcm.h b/arch/arm/mm/tcm.h new file mode 100644 index 000000000000..8015ad434a40 --- /dev/null +++ b/arch/arm/mm/tcm.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2008-2009 ST-Ericsson AB + * License terms: GNU General Public License (GPL) version 2 + * TCM memory handling for ARM systems + * + * Author: Linus Walleij + * Author: Rickard Andersson + */ + +#ifdef CONFIG_HAVE_TCM +void __init tcm_init(void); +#else +/* No TCM support, just blank inlines to be optimized out */ +inline void tcm_init(void) +{ +} +#endif -- cgit v1.2.3