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ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 3

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The C language has signed types, so make use of them. Fix this
obscene loop, which tries to do away with unsigned type, but
just makes the code more cryptic.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2015-07-19 07:51:17 +02:00
parent 3cb8bf3fc5
commit 7ce23bb6ef
1 changed files with 3 additions and 4 deletions
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7
drivers/ddr/altera/sequencer.c
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@ -1232,7 +1232,8 @@ rw_mgr_mem_calibrate_read_test(const u32 rank_bgn, const u32 group,
&sdr_rw_load_jump_mgr_regs->load_jump_add3);
tmp_bit_chk = 0;
for (vg = RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS-1; ; vg--) {
for (vg = RW_MGR_MEM_VIRTUAL_GROUPS_PER_READ_DQS - 1; vg >= 0;
vg--) {
/* reset the fifos to get pointers to known state */
writel(0, &phy_mgr_cmd->fifo_reset);
writel(0, SDR_PHYGRP_RWMGRGRP_ADDRESS |
@ -1252,10 +1253,8 @@ rw_mgr_mem_calibrate_read_test(const u32 rank_bgn, const u32 group,
base_rw_mgr = readl(SDR_PHYGRP_RWMGRGRP_ADDRESS);
tmp_bit_chk = tmp_bit_chk | (correct_mask_vg & ~(base_rw_mgr));
if (vg == 0)
break;
}
*bit_chk &= tmp_bit_chk;
}