diff options
| author | Peter Tyser <ptyser@xes-inc.com> | 2009-06-30 17:15:48 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-07-01 23:12:01 -0500 |
| commit | 0d595f76bc9c7c8dff5bd31dffed87a840a03c56 (patch) | |
| tree | fe9fd5c24c569893155ae2c52257c6402351af9b /drivers/dma | |
| parent | 79f4333ceb059049b3ee560167d6cbaec493695f (diff) | |
fsl_dma: Break out common memory initialization function
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl_dma.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/dma/fsl_dma.c b/drivers/dma/fsl_dma.c index 49ea8f105da..e103c910fdd 100644 --- a/drivers/dma/fsl_dma.c +++ b/drivers/dma/fsl_dma.c @@ -110,3 +110,35 @@ int dmacpy(phys_addr_t dest, phys_addr_t src, phys_size_t count) { return 0; } + +#if (defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)) +void dma_meminit(uint val, uint size) +{ + uint *p = 0; + uint i = 0; + + for (*p = 0; p < (uint *)(8 * 1024); p++) { + if (((uint)p & 0x1f) == 0) + ppcDcbz((ulong)p); + + *p = (uint)CONFIG_MEM_INIT_VALUE; + + if (((uint)p & 0x1c) == 0x1c) + ppcDcbf((ulong)p); + } + + dmacpy(0x002000, 0, 0x002000); /* 8K */ + dmacpy(0x004000, 0, 0x004000); /* 16K */ + dmacpy(0x008000, 0, 0x008000); /* 32K */ + dmacpy(0x010000, 0, 0x010000); /* 64K */ + dmacpy(0x020000, 0, 0x020000); /* 128K */ + dmacpy(0x040000, 0, 0x040000); /* 256K */ + dmacpy(0x080000, 0, 0x080000); /* 512K */ + dmacpy(0x100000, 0, 0x100000); /* 1M */ + dmacpy(0x200000, 0, 0x200000); /* 2M */ + dmacpy(0x400000, 0, 0x400000); /* 4M */ + + for (i = 1; i < size / 0x800000; i++) + dmacpy((0x800000 * i), 0, 0x800000); +} +#endif |