Messages in this thread | | | From | Robert Nelson <> | Date | Fri, 22 Sep 2023 14:08:16 -0500 | Subject | Re: [PATCH 0/6] RISC-V: Add eMMC support for TH1520 boards |
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On Thu, Sep 21, 2023 at 8:51 PM Drew Fustini <dfustini@baylibre.com> wrote: > > This series adds support for the eMMC on the BeagleV Ahead and the > Sipeed LicheePi 4A. This allows the kernel to boot with the rootfs on > eMMC. > > I tested on top of v6.6-rc2 with this config [1]. I was able to boot > both the Ahead [2] and LPi4a [3] from eMMC. The following prerequisites > are required: > > [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus [4] > > I pushed a branch [5] with this patch series and the above patch for > those that find a git branch easier to test. > > Please note that only the MMC controller connected to the eMMC device > is enabled in the device trees for these two boards. I did not yet > attempt to configure and use the microSD card slot. My preference is to > address that in a future patch series. > > References: > [1] https://gist.github.com/pdp7/5fbdcf2a65eb1abdd3a29d519c19cdd2 > [2] https://gist.github.com/pdp7/91a801a5f8d1070c53509eda9800ad78 > [3] https://gist.github.com/pdp7/1445c3c991e88fd69c60165cef65726a > [4] https://lore.kernel.org/linux-riscv/20230912072232.2455-1-jszhang@kernel.org/ > [5] https://github.com/pdp7/linux/tree/b4/th1520-mmc
This patchset came out very nice!
v6.6-rc2 with Last RFC v2:
[ 4.066630] mmc0: SDHCI controller on ffe7080000.mmc [ffe7080000.mmc] using PIO
debian@BeagleV:~$ sudo hdparm -tT /dev/mmcblk0
/dev/mmcblk0: Timing cached reads: 1516 MB in 2.00 seconds = 758.09 MB/sec Timing buffered disk reads: 84 MB in 3.01 seconds = 27.94 MB/sec
vs v6.6-rc2 with this patchset:
[ 4.096837] mmc0: SDHCI controller on ffe7080000.mmc [ffe7080000.mmc] using DMA
debian@BeagleV:~$ sudo hdparm -tT /dev/mmcblk0
/dev/mmcblk0: Timing cached reads: 1580 MB in 2.00 seconds = 790.97 MB/sec Timing buffered disk reads: 418 MB in 3.00 seconds = 139.11 MB/sec
Regards,
-- Robert Nelson https://rcn-ee.com/
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