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Host Controller v3.00 can support retuning modes 1,2 or 3 depending on the bits 46-47 of the Capabilities register. Also, the timer count for retuning is indicated by bits 40-43 of the same register. We initialize timer_list for retuning the first time we execute tuning procedure. This condition is indicated by SDHCI_NEEDS_RETUNING not being set. Since retuning mode 1 sets a limit of 4MB on the maximum data length, we set max_blk_count appropriately. Once the tuning timer expires, we set SDHCI_NEEDS_RETUNING flag, and if the flag is set, we execute tuning procedure before sending the next command. We need to restore mmc_request structure after executing retuning procedure since host->mrq is used inside the procedure to send CMD19. We also disable and re-enable this flag during suspend and resume respectively, as per the spec v3.00. Tested by Zhangfei Gao with a Toshiba uhs card and general hs card, on mmp2 in SDMA mode. Signed-off-by: Arindam Nath <arindam.nath@amd.com> Reviewed-by: Philip Rakity <prakity@marvell.com> Tested-by: Philip Rakity <prakity@marvell.com> Acked-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org> |
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| .. | ||
| boot.h | ||
| card.h | ||
| core.h | ||
| dw_mmc.h | ||
| host.h | ||
| ioctl.h | ||
| Kbuild | ||
| mmc.h | ||
| pm.h | ||
| sd.h | ||
| sdhci-pltfm.h | ||
| sdhci-spear.h | ||
| sdhci.h | ||
| sdio.h | ||
| sdio_func.h | ||
| sdio_ids.h | ||
| sh_mmcif.h | ||
| sh_mobile_sdhi.h | ||
| tmio.h | ||