u-boot-brain/drivers/clk/aspeed
Cédric Le Goater 1e5d8aaf4f aspeed: ast2500: fix D2-PLL clock setting in RGMII mode
The algorithm in the ast2500_calc_clock_config() routine suffers from
integer rounding and the requested rate does not get the appropriate
set of Numerator, Denumerator, Post Divider parameters.

This is the case for the D2-PLL clock used by the MAC controllers in
RGMII mode. The requested rated is 250MHz but a 251MHz is assigned.

The easiest way to fix this problem is to introduce an array of clock
settings defining the N, M, P parameters for well known frequencies
used by the Aspeed SoC.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-11-05 10:41:58 -06:00
..
clk_ast2500.c aspeed: ast2500: fix D2-PLL clock setting in RGMII mode 2018-11-05 10:41:58 -06:00
Makefile drivers: cosmetic: Convert SPDX license tags to Linux Kernel style 2018-10-28 09:26:39 -04:00