static void ddr3_reset_data(u32 base, u32 ddr3_size)
{
u32 mpax[2];
u32 seg_num;
u32 seg, blks, dst, edma_blks;
struct edma3_slot_config slot;
struct edma3_channel_config edma_channel;
u32 edma_src[DDR3_EDMA_BLK_SIZE/4] __aligned(16) = {0, };
/* Setup an edma to copy the 1k block to the entire DDR */
puts("\nClear entire DDR3 memory to enable ECC\n");
/* save the SES MPAX regs */
if (cpu_is_k2g())
msmc_get_ses_mpax(K2G_MSMC_SEGMENT_ARM, 0, mpax);
else
msmc_get_ses_mpax(K2HKLE_MSMC_SEGMENT_ARM, 0, mpax);
/* setup edma slot 1 configuration */
slot.opt = EDMA3_SLOPT_TRANS_COMP_INT_ENB |
EDMA3_SLOPT_COMP_CODE(0) |
EDMA3_SLOPT_STATIC | EDMA3_SLOPT_AB_SYNC;
slot.bcnt = DDR3_EDMA_BCNT;
slot.acnt = DDR3_EDMA_BLK_SIZE;
slot.ccnt = DDR3_EDMA_CCNT;
slot.src_bidx = 0;
slot.dst_bidx = DDR3_EDMA_BLK_SIZE;
slot.src_cidx = 0;
slot.dst_cidx = 0;
slot.link = EDMA3_PARSET_NULL_LINK;
slot.bcntrld = 0;
edma3_slot_configure(KS2_EDMA0_BASE, DDR3_EDMA_SLOT_NUM, &slot);
/* configure quik edma channel */
edma_channel.slot = DDR3_EDMA_SLOT_NUM;
edma_channel.chnum = 0;
edma_channel.complete_code = 0;
/* event trigger after dst update */
edma_channel.trigger_slot_word = EDMA3_TWORD(dst);
qedma3_start(KS2_EDMA0_BASE, &edma_channel);
/* DDR3 size in segments (4KB seg size) */
seg_num = ddr3_size << (30 - KS2_MSMC_SEG_SIZE_SHIFT);
for (seg = 0; seg < seg_num; seg += KS2_MSMC_MAP_SEG_NUM) {
/* map 2GB 36-bit DDR address to 32-bit DDR address in EMIF
access slave interface so that edma driver can access */
if (cpu_is_k2g()) {
msmc_map_ses_segment(K2G_MSMC_SEGMENT_ARM, 0,
base >> KS2_MSMC_SEG_SIZE_SHIFT,
KS2_MSMC_DST_SEG_BASE + seg,
MPAX_SEG_2G);
} else {
msmc_map_ses_segment(K2HKLE_MSMC_SEGMENT_ARM, 0,
base >> KS2_MSMC_SEG_SIZE_SHIFT,
KS2_MSMC_DST_SEG_BASE + seg,
MPAX_SEG_2G);
}
if ((seg_num - seg) > KS2_MSMC_MAP_SEG_NUM)
edma_blks = KS2_MSMC_MAP_SEG_NUM <<
(KS2_MSMC_SEG_SIZE_SHIFT
- DDR3_EDMA_BLK_SIZE_SHIFT);
else
edma_blks = (seg_num - seg) << (KS2_MSMC_SEG_SIZE_SHIFT
- DDR3_EDMA_BLK_SIZE_SHIFT);
/* Use edma driver to scrub 2GB DDR memory */
for (dst = base, blks = 0; blks < edma_blks;
blks += DDR3_EDMA_BCNT, dst += DDR3_EDMA_XF_SIZE) {
edma3_set_src_addr(KS2_EDMA0_BASE,
edma_channel.slot, (u32)edma_src);
edma3_set_dest_addr(KS2_EDMA0_BASE,
edma_channel.slot, (u32)dst);
while (edma3_check_for_transfer(KS2_EDMA0_BASE,
&edma_channel))
udelay(10);
}
}
void __edma3_transfer(unsigned long edma3_base_addr, unsigned int edma_slot_num,
void *dst, void *src, size_t len)
{
struct edma3_slot_config slot;
struct edma3_channel_config edma_channel;
int b_cnt_value = 1;
int rem_bytes = 0;
int a_cnt_value = len;
unsigned int addr = (unsigned int) (dst);
unsigned int max_acnt = 0x7FFFU;
if (len > max_acnt) {
b_cnt_value = (len / max_acnt);
rem_bytes = (len % max_acnt);
a_cnt_value = max_acnt;
}
slot.opt = 0;
slot.src = ((unsigned int) src);
slot.acnt = a_cnt_value;
slot.bcnt = b_cnt_value;
slot.ccnt = 1;
slot.src_bidx = a_cnt_value;
slot.dst_bidx = a_cnt_value;
slot.src_cidx = 0;
slot.dst_cidx = 0;
slot.link = EDMA3_PARSET_NULL_LINK;
slot.bcntrld = 0;
slot.opt = EDMA3_SLOPT_TRANS_COMP_INT_ENB |
EDMA3_SLOPT_COMP_CODE(0) |
EDMA3_SLOPT_STATIC | EDMA3_SLOPT_AB_SYNC;
edma3_slot_configure(edma3_base_addr, edma_slot_num, &slot);
edma_channel.slot = edma_slot_num;
edma_channel.chnum = 0;
edma_channel.complete_code = 0;
/* set event trigger to dst update */
edma_channel.trigger_slot_word = EDMA3_TWORD(dst);
qedma3_start(edma3_base_addr, &edma_channel);
edma3_set_dest_addr(edma3_base_addr, edma_channel.slot, addr);
while (edma3_check_for_transfer(edma3_base_addr, &edma_channel))
;
qedma3_stop(edma3_base_addr, &edma_channel);
if (rem_bytes != 0) {
slot.opt = 0;
slot.src =
(b_cnt_value * max_acnt) + ((unsigned int) src);
slot.acnt = rem_bytes;
slot.bcnt = 1;
slot.ccnt = 1;
slot.src_bidx = rem_bytes;
slot.dst_bidx = rem_bytes;
slot.src_cidx = 0;
slot.dst_cidx = 0;
slot.link = EDMA3_PARSET_NULL_LINK;
slot.bcntrld = 0;
slot.opt = EDMA3_SLOPT_TRANS_COMP_INT_ENB |
EDMA3_SLOPT_COMP_CODE(0) |
EDMA3_SLOPT_STATIC | EDMA3_SLOPT_AB_SYNC;
edma3_slot_configure(edma3_base_addr, edma_slot_num, &slot);
edma_channel.slot = edma_slot_num;
edma_channel.chnum = 0;
edma_channel.complete_code = 0;
/* set event trigger to dst update */
edma_channel.trigger_slot_word = EDMA3_TWORD(dst);
qedma3_start(edma3_base_addr, &edma_channel);
edma3_set_dest_addr(edma3_base_addr, edma_channel.slot, addr +
(max_acnt * b_cnt_value));
while (edma3_check_for_transfer(edma3_base_addr, &edma_channel))
;
qedma3_stop(edma3_base_addr, &edma_channel);
}
}