Commit graph

3 commits

Author SHA1 Message Date
Cédric Le Goater
6bdccc3025 aspeed: Update ast2500 SoC DTS file to Linux v4.17-rc6 level
This is a large update of the AST2500 SoC DTS file bringing it to the
level of commit 927c2fc2db19 :

    Author:  Joel Stanley <joel@jms.id.au>
    Date:    Sat Jun 2 01:18:53 2018 -0700

         ARM: dts: aspeed: Fix hwrng register address

There are some differences on the compatibility property names. scu,
reset and clock drivers are also different.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-11-05 10:41:58 -06:00
maxims@google.com
17c5fb1953 aspeed: Update ast2500 Device Tree
Pull in the Device Tree for ast2500 from the mainline Linux kernel.
The file is copied from
https://raw.githubusercontent.com/torvalds/linux/34ea5c9d/arch/arm/boot/dts/aspeed-g5.dtsi

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08 11:57:30 -04:00
maxims@google.com
14e4b14979 aspeed: Add basic ast2500-specific drivers and configuration
Clock Driver

This driver is ast2500-specific and is not compatible with earlier
versions of this chip. The differences are not that big, but they are
in somewhat random places, so making it compatible with ast2400 is not
worth the effort at the moment.

SDRAM MC driver

The driver is very ast2500-specific and is completely incompatible
with previous versions of the chip.

The memory controller is very poorly documented by Aspeed in the
datasheet, with any mention of the whole range of registers missing. The
initialization procedure has been basically taken from Aspeed SDK, where
it is implemented in assembly. Here it is rewritten in C, with very limited
understanding of what exactly it is doing.
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-01-28 14:04:29 -05:00