From d6ad5a0af9e6a12f47008141259f77b568c73ab2 Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Thu, 26 May 2022 16:37:21 +0200 Subject: [PATCH] mmc: Add support for wait_dat0 callback There is no wait_dat0 mmc ops, causing operations waiting for data line state change (e.g mmc_switch_voltage) to fallback to a 250ms active delay. mmc_ops still used when DM_MMC is not enabled, which is often the case for SPL. The result can be unexpectly long SPL boot time. This change adds support for wait_dat0() mmc operation. Signed-off-by: Loic Poulain Reviewed-by: Jaehoon Chung --- drivers/mmc/mmc.c | 3 +++ include/mmc.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 8a7d073..12d29da 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -34,6 +34,9 @@ static int mmc_set_signal_voltage(struct mmc *mmc, uint signal_voltage); static int mmc_wait_dat0(struct mmc *mmc, int state, int timeout_us) { + if (mmc->cfg->ops->wait_dat0) + return mmc->cfg->ops->wait_dat0(mmc, state, timeout_us); + return -ENOSYS; } diff --git a/include/mmc.h b/include/mmc.h index 9b4dc68..073b01f 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -561,6 +561,7 @@ struct mmc_ops { int (*getwp)(struct mmc *mmc); int (*host_power_cycle)(struct mmc *mmc); int (*get_b_max)(struct mmc *mmc, void *dst, lbaint_t blkcnt); + int (*wait_dat0)(struct mmc *mmc, int state, int timeout_us); }; static inline int mmc_hs400_prepare_ddr(struct mmc *mmc) -- 2.7.4