On Mon, Oct 23, 2023 at 01:33:02PM -0700, Drew Fustini wrote: > This series adds support for the MMC controller in the T-Head TH1520 > SoC, and it enables the eMMC and microSD slot on both the BeagleV > Ahead and the Sipeed LicheePi 4A. > > I tested on top of v6.6-rc6 with riscv defconfig. I was able to boot > both the Ahead [1] and LPi4a [2] from eMMC. The following prerequisites > are required: > > [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus [3] > > I pushed a branch [4] with this patch series and the above patch for > those that find a git branch easier to test. > > Note: I have only tested eMMC and microSD. I have not yet configured > or tested the mmc controller used for SDIO WiFi yet. > > References: > [1] https://gist.github.com/pdp7/7850027e8d256b6fd9cd53080240f0f6 > [2] https://gist.github.com/pdp7/fae4637378426723508b679420a0a5a1 > [3] https://lore.kernel.org/linux-riscv/20230912072232.2455-1-jszhang@xxxxxxxxxx/ > [4] https://github.com/pdp7/linux/tree/b4/th1520-mmc > > Changes in PATCH v3: > - always call th1520_sdhci_set_phy() in th1520_set_uhs_signaling() > and not only when timing is MMC_TIMING_MMC_HS400. This allows the > microSD slot to work as th1520_phy_3_3v_init() is called from > th1520_sdhci_set_phy(). > - add mmc1 node for mmc controller connected to the microSD slot > - add enable mmc1 and add properties for microSD on the Ahead and LPi4A My apologies for sending this v3 series prematurely. I wanted to send out the fix above that enabled microSD to work but I failed to address the feedback from Adrian and Jisheng on v2 [1] and I also failed to applied the tags from v2. I will address those in a v4 but I'll wait a few days in case there is any feedback on the th1520_set_uhs_signaling() change above. Thank you, Drew [1] https://lore.kernel.org/r/20231017-th1520-mmc-v2-0-4678c8cc4048@xxxxxxxxxxxx
