Messages in this thread | | | From | Artur Rojek <> | Subject | [PATCH 0/2] SH7709 DMA fixes | Date | Sat, 6 May 2023 16:17:01 +0200 |
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Hi,
this series provides fixes to the SH7709 DMA controller, allowing the HP Jornada 680 palmtop to boot Linux again. To my knowledge, this is the first time in ~14 years someone tests upstream Linux on this device. And with the included patches applied, I'm happy to announce that it still works like a charm.
PS. What might be of interest to the sh-linux community, there's further work towards this platform in my pipeline. E.g. I've added support for the HD6446x PCMCIA controller, allowing Jornada 680 to use Ethernet and Wi-Fi cards. However, what prevents proper upstream of such a driver is the crude and antiquated code of the underlying platform base. For example, the HD6446x bridge (`cchips/hd6446x/hd64461.c`) lacks the concept of clocks, preventing the PCMCIA driver from hardware agnostic clock gating. So what I'm looking into next is the cleanup of existing platform code base, bringing it up-to-date with modern kernel APIs. Hopefully it's not trying to bite more than I can chew, but eventually ending up with Device Tree support would be really nice :)
Artur Rojek (2): sh: dma: fix `dmaor_read_reg`/`dmaor_write_reg` macros sh: dma: Correct the number of DMA channels in SH7709
arch/sh/drivers/dma/Kconfig | 10 ++++++---- arch/sh/drivers/dma/dma-sh.c | 7 +++++-- 2 files changed, 11 insertions(+), 6 deletions(-)
-- 2.40.1
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