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ddr: altera: Clean up scc_mgr_initialize()

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Clean up the comments and add kerneldoc. No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2015-07-20 07:16:42 +02:00
parent c76976d98f
commit e893f4dc2f
1 changed files with 10 additions and 4 deletions
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14
drivers/ddr/altera/sequencer.c
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@ -265,15 +265,21 @@ static void scc_mgr_set(u32 off, u32 grp, u32 val)
writel(val, SDR_PHYGRP_SCCGRP_ADDRESS | off | (grp << 2));
}
/**
* scc_mgr_initialize() - Initialize SCC Manager registers
*
* Initialize SCC Manager registers.
*/
static void scc_mgr_initialize(void)
{
/*
* Clear register file for HPS
* 16 (2^4) is the size of the full register file in the scc mgr:
* RFILE_DEPTH = log2(MEM_DQ_PER_DQS + 1 + MEM_DM_PER_DQS +
* MEM_IF_READ_DQS_WIDTH - 1) + 1;
* Clear register file for HPS. 16 (2^4) is the size of the
* full register file in the scc mgr:
* RFILE_DEPTH = 1 + log2(MEM_DQ_PER_DQS + 1 + MEM_DM_PER_DQS +
* MEM_IF_READ_DQS_WIDTH - 1);
*/
int i;
for (i = 0; i < 16; i++) {
debug_cond(DLEVEL == 1, "%s:%d: Clearing SCC RFILE index %u\n",
__func__, __LINE__, i);