From: Maxime Ripard <maxime.ripard@free-electrons.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 14/26] sunxi: H3: Rework MBUS priority setup
Date: Mon, 19 Dec 2016 10:44:47 +0100 [thread overview]
Message-ID: <20161219094447.ibqdybnmpfna727i@lukather> (raw)
In-Reply-To: <1482112216-12983-15-git-send-email-andre.przywara@arm.com>
On Mon, Dec 19, 2016 at 01:50:04AM +0000, Andre Przywara wrote:
> From: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
>
> So far the MBUS priority setup was done by writing "magic" values taken
> from a DRAM controller register dump after a boot0 run.
> By peeking at the Linux (sic!) MBUS driver [1] from the Allwinner BSP
> kernel, we learned more about the actual meaning of those bits.
> Add macros and refactor the setup function to make the MBUS setup much
> more readable and meaningful.
> The actual values used now are a transformation of the values used
> before, which are assembled by the new code to result in the same register
> writes. So this rework does not change any settings, also the code size
> stays the same.
>
> The respective source files in the BSP kernel had a proper GPL header,
> so lifting this code and information into U-Boot is legal.
>
> [Andre: provide a convenience macro to fit definitions on one line]
>
> [1] https://github.com/longsleep/linux-pine64/blob/lichee-dev-v3.10.65/drivers/bus/sunxi_mbus.c
>
> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Nice cleanup!
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Thanks,
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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next prev parent reply other threads:[~2016-12-19 9:44 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-19 1:49 [U-Boot] [PATCH v3 00/26] sunxi: Allwinner A64: SPL support Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 01/26] sun6i: Restrict some register initialization to Allwinner A31 SoC Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 02/26] armv8: prevent using THUMB Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 03/26] armv8: add lowlevel_init.S Andre Przywara
2016-12-26 5:23 ` Simon Glass
2016-12-19 1:49 ` [U-Boot] [PATCH v3 04/26] SPL: tiny-printf: add "l" modifier Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 05/26] SPL: tiny-printf: ignore "-" modifier Andre Przywara
2016-12-26 5:23 ` Simon Glass
2016-12-19 1:49 ` [U-Boot] [PATCH v3 06/26] move UL() macro from armv8/mmu.h into common.h Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 07/26] SPL: make struct spl_image 64-bit safe Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 08/26] armv8: add simple sdelay implementation Andre Przywara
2016-12-19 1:49 ` [U-Boot] [PATCH v3 09/26] armv8: move reset branch into boot hook Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 10/26] ARM: boot0 hook: remove macro, include whole header file Andre Przywara
2016-12-30 20:41 ` Steve Rae
2016-12-19 1:50 ` [U-Boot] [PATCH v3 11/26] sunxi: introduce extra config option for boot0 header Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 12/26] sunxi: A64: do an RMR switch if started in AArch32 mode Andre Przywara
2016-12-19 9:43 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 13/26] sunxi: provide default DRAM config for sun50i in Kconfig Andre Przywara
2016-12-19 9:43 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 14/26] sunxi: H3: Rework MBUS priority setup Andre Przywara
2016-12-19 9:44 ` Maxime Ripard [this message]
2016-12-19 1:50 ` [U-Boot] [PATCH v3 15/26] sunxi: H3: add and rename some DRAM contoller registers Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 16/26] sunxi: H3: add DRAM controller single bit delay support Andre Przywara
2016-12-19 9:57 ` Maxime Ripard
2016-12-19 10:53 ` Andre Przywara
2016-12-20 13:48 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 17/26] sunxi: clocks: Use the correct pattern register for PLL11 Andre Przywara
2016-12-19 9:58 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 18/26] sunxi: A64: use H3 DRAM initialization code for A64 as well Andre Przywara
2016-12-19 10:00 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 19/26] sunxi: H3/A64: fix non-ODT setting Andre Przywara
2016-12-19 10:01 ` Maxime Ripard
2016-12-19 10:33 ` Andre Przywara
2016-12-19 14:32 ` Jens Kuske
2016-12-20 10:49 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 20/26] sunxi: DRAM: fix H3 DRAM size display on aarch64 Andre Przywara
2016-12-19 10:01 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 21/26] sunxi: A64: enable SPL Andre Przywara
2016-12-19 10:01 ` Maxime Ripard
2016-12-26 5:23 ` Simon Glass
2016-12-19 1:50 ` [U-Boot] [PATCH v3 22/26] SPL: read and store arch property from U-Boot image Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 23/26] Makefile: use "arm64" architecture for U-Boot image files Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 24/26] ARM: SPL/FIT: differentiate between arm and arm64 arch properties Andre Przywara
2016-12-19 1:50 ` [U-Boot] [PATCH v3 25/26] sunxi: introduce RMR switch to enter payloads in 64-bit mode Andre Przywara
2016-12-19 10:03 ` Maxime Ripard
2016-12-19 1:50 ` [U-Boot] [PATCH v3 26/26] sunxi: A64: add 32-bit SPL support Andre Przywara
2016-12-19 10:05 ` Maxime Ripard
2017-01-01 19:02 ` [U-Boot] [PATCH v3 00/26] sunxi: Allwinner A64: " Jagan Teki
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