linux-kernel - [PATCH v1 0/2] eMMC RST_N support on BlueField-2 SoC

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Message-ID: <cover.1718213918.git.limings@nvidia.com>
Date: Wed, 12 Jun 2024 18:52:36 -0400
From: Liming Sun <limings@...dia.com>
To: Adrian Hunter <adrian.hunter@...el.com>, Ulf Hansson
	<ulf.hansson@...aro.org>, David Thompson <davthompson@...dia.com>
CC: Liming Sun <limings@...dia.com>, <linux-mmc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v1 0/2] eMMC RST_N support on BlueField-2 SoC

The dw_mmc driver supports eMMC RST_N recovery flow but doesn't work
on BlueField-2 SoC because the RST_N register is designed as secure
register. This patch series enhance the dw_mci_drv_data structure to
support platform-specific hw_reset(), then implements this function in
dw_mmc-bluefield.c to support RST_N via SMC call.

Liming Sun (2):
  dw_mmc: support platform specific hw_reset()
  dw_mmc-bluefield: add hw_reset() support

 drivers/mmc/host/dw_mmc-bluefield.c | 18 +++++++++++++++++-
 drivers/mmc/host/dw_mmc.c           |  6 ++++++
 drivers/mmc/host/dw_mmc.h           |  2 ++
 3 files changed, 25 insertions(+), 1 deletion(-)

-- 
2.30.1