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ddr: altera: sdram: Clean up compute_errata_rows() part 1 

Clean up weird parenthesis and odd type casts from the function.
Fix comment style.

Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Marek Vasut 2015-08-01 18:54:34 +02:00
parent 58d86144d4
commit 791d20e13d
1 changed files with 7 additions and 7 deletions
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14
drivers/ddr/altera/sdram.c
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@ -54,13 +54,14 @@ static int compute_errata_rows(unsigned long long memsize, int cs, int width,
debug("workaround rows - banks %d\n", banks);
debug("workaround rows - cols %d\n", cols);
newrows = lldiv(memsize, (cs * (width / 8)));
newrows = lldiv(memsize, cs * (width / 8));
debug("rows workaround - term1 %lld\n", newrows);
newrows = lldiv(newrows, ((1 << banks) * (1 << cols)));
newrows = lldiv(newrows, (1 << banks) * (1 << cols));
debug("rows workaround - term2 %lld\n", newrows);
/* Compute the hamming weight - same as number of bits set.
/*
* Compute the hamming weight - same as number of bits set.
* Need to see if result is ordinal power of 2 before
* attempting log2 of result.
*/
@ -78,13 +79,12 @@ static int compute_errata_rows(unsigned long long memsize, int cs, int width,
return rows;
}
inewrowslog2 = __ilog2((unsigned int)newrows);
inewrowslog2 = __ilog2(newrows);
debug("rows workaround - ilog2 %d, %d\n", inewrowslog2,
(int)newrows);
debug("rows workaround - ilog2 %d, %lld\n", inewrowslog2, newrows);
if (inewrowslog2 == -1) {
printf("SDRAM workaround failed, newrows %d\n", (int)newrows);
printf("SDRAM workaround failed, newrows %lld\n", newrows);
return rows;
}