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ddr: altera: Clean up phy_mgr_initialize()

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Zap the cryptic casts and rework the code into a slightly more
readable form. No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2015-07-17 01:36:32 +02:00
parent 23a040c047
commit 7c89c2d9ce
1 changed files with 21 additions and 16 deletions
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37
drivers/ddr/altera/sequencer.c
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@ -113,10 +113,17 @@ static void reg_file_set_sub_stage(u8 set_sub_stage)
clrsetbits_le32(&sdr_reg_file->cur_stage, 0xff00, set_sub_stage << 8);
}
/**
* phy_mgr_initialize() - Initialize PHY Manager
*
* Initialize PHY Manager.
*/
static void phy_mgr_initialize(void)
{
u32 ratio;
debug("%s:%d\n", __func__, __LINE__);
/* USER calibration has control over path to memory */
/* Calibration has control over path to memory */
/*
* In Hard PHY this is a 2-bit control:
* 0: AFI Mux Select
@ -132,21 +139,19 @@ static void phy_mgr_initialize(void)
writel(0, &phy_mgr_cfg->cal_debug_info);
if ((dyn_calib_steps & CALIB_SKIP_ALL) != CALIB_SKIP_ALL) {
param->read_correct_mask_vg = ((uint32_t)1 <<
(RW_MGR_MEM_DQ_PER_READ_DQS /
RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS)) - 1;
param->write_correct_mask_vg = ((uint32_t)1 <<
(RW_MGR_MEM_DQ_PER_READ_DQS /
RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS)) - 1;
param->read_correct_mask = ((uint32_t)1 <<
RW_MGR_MEM_DQ_PER_READ_DQS) - 1;
param->write_correct_mask = ((uint32_t)1 <<
RW_MGR_MEM_DQ_PER_WRITE_DQS) - 1;
param->dm_correct_mask = ((uint32_t)1 <<
(RW_MGR_MEM_DATA_WIDTH / RW_MGR_MEM_DATA_MASK_WIDTH))
- 1;
}
/* Init params only if we do NOT skip calibration. */
if ((dyn_calib_steps & CALIB_SKIP_ALL) == CALIB_SKIP_ALL)
return;
ratio = RW_MGR_MEM_DQ_PER_READ_DQS /
RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS;
param->read_correct_mask_vg = (1 << ratio) - 1;
param->write_correct_mask_vg = (1 << ratio) - 1;
param->read_correct_mask = (1 << RW_MGR_MEM_DQ_PER_READ_DQS) - 1;
param->write_correct_mask = (1 << RW_MGR_MEM_DQ_PER_WRITE_DQS) - 1;
ratio = RW_MGR_MEM_DATA_WIDTH /
RW_MGR_MEM_DATA_MASK_WIDTH;
param->dm_correct_mask = (1 << ratio) - 1;
}
static void set_rank_and_odt_mask(uint32_t rank, uint32_t odt_mode)