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Blackfin: initial XIP support

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Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Barry Song
2010-01-07 04:11:17 +00:00
committed by Mike Frysinger
parent aad16f3228
commit d86bfb1600
13 changed files with 160 additions and 29 deletions
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16
arch/blackfin/kernel/setup.c
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@@ -220,6 +220,16 @@ void __init bfin_relocate_l1_mem(void)
memcpy(_stext_l2, _l2_lma, l2_len);
}
#ifdef CONFIG_ROMKERNEL
void __init bfin_relocate_xip_data(void)
{
early_shadow_stamp();
memcpy(_sdata, _data_lma, (unsigned long)_data_len - THREAD_SIZE + sizeof(struct thread_info));
memcpy(_sinitdata, _init_data_lma, (unsigned long)_init_data_len);
}
#endif
/* add_memory_region to memmap */
static void __init add_memory_region(unsigned long long start,
unsigned long long size, int type)
@@ -504,7 +514,7 @@ static __init void memory_setup(void)
#endif
unsigned long max_mem;
_rambase = (unsigned long)_stext;
_rambase = CONFIG_BOOT_LOAD;
_ramstart = (unsigned long)_end;
if (DMA_UNCACHED_REGION > (_ramend - _ramstart)) {
@@ -1261,8 +1271,8 @@ static int show_cpuinfo(struct seq_file *m, void *v)
seq_printf(m, "board memory\t: %ld kB (0x%p -> 0x%p)\n",
physical_mem_end >> 10, (void *)0, (void *)physical_mem_end);
seq_printf(m, "kernel memory\t: %d kB (0x%p -> 0x%p)\n",
((int)memory_end - (int)_stext) >> 10,
_stext,
((int)memory_end - (int)_rambase) >> 10,
(void *)_rambase,
(void *)memory_end);
seq_printf(m, "\n");