From: "Jeremy Linton" <jeremy.linton@arm.com>
To: devel@edk2.groups.io
Cc: ard.biesheuvel@arm.com, leif@nuviainc.com, pete@akeo.ie,
samer.el-haj-mahmoud@arm.com, awarkentin@vmware.com,
Jeremy Linton <jeremy.linton@arm.com>
Subject: [PATCH v4 6/7] Platform/RaspberryPi: Power up SD, and tweak GPIOs
Date: Tue, 5 Jan 2021 10:34:19 -0600 [thread overview]
Message-ID: <20210105163420.1711652-7-jeremy.linton@arm.com> (raw)
In-Reply-To: <20210105163420.1711652-1-jeremy.linton@arm.com>
It seems we should be powering up the SD cards, and possibly
the clocks as well to assure they are setup properly before
we attempt to access the controller.
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Reviewed-by: Andrei Warkentin <awarkentin@vmware.com>
---
Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
index 28f57438c5..aa9ba7d76f 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
@@ -552,6 +552,13 @@ ApplyVariables (
GpioPinFuncSet (37, GPIO_FSEL_ALT3);
GpioPinFuncSet (38, GPIO_FSEL_ALT3);
GpioPinFuncSet (39, GPIO_FSEL_ALT3);
+
+ Status = mFwProtocol->SetPowerState (RPI_MBOX_POWER_STATE_SDHCI,
+ TRUE, TRUE); //SD on with wait
+ Status = mFwProtocol->SetGpioConfig (RPI_EXP_GPIO_SD_VOLT,
+ RPI_EXP_GPIO_DIR_OUT, TRUE); //3.3v
+ Status = mFwProtocol->SetClockState (RPI_MBOX_CLOCK_RATE_EMMC2, TRUE);
+ Status = mFwProtocol->SetClockState (RPI_MBOX_CLOCK_RATE_EMMC, TRUE);
}
} else {
DEBUG ((DEBUG_ERROR, "Model Family %d not supported...\n", mModelFamily));
--
2.13.7
next prev parent reply other threads:[~2021-01-05 16:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 16:34 [PATCH v4 0/7] rpi4: Enable eMMC2 controller Jeremy Linton
2021-01-05 16:34 ` [PATCH v4 1/7] Platform/RaspberryPi: Update VPU mailbox constants Jeremy Linton
2021-01-05 16:34 ` [PATCH v4 2/7] Platform/RaspberryPi: Add further mailbox helpers Jeremy Linton
2021-01-05 16:34 ` [PATCH v4 3/7] Platform/RaspberryPi: Split MMC register definitions Jeremy Linton
2021-01-05 18:45 ` [edk2-devel] " Philippe Mathieu-Daudé
2021-01-05 16:34 ` [PATCH v4 4/7] Platform/RaspberryPi/Arasan: Add write delay and voltage/clock config Jeremy Linton
2021-01-05 16:34 ` [PATCH v4 5/7] Platform/RaspberryPi/Arasan: Select the correct base frequency Jeremy Linton
2021-01-05 16:34 ` Jeremy Linton [this message]
2021-01-05 16:34 ` [PATCH v4 7/7] Platform/RaspberryPi: Correct device path removal Jeremy Linton
2021-01-06 9:11 ` [PATCH v4 0/7] rpi4: Enable eMMC2 controller Ard Biesheuvel
2021-01-06 11:23 ` Andrei Warkentin
2021-01-06 14:04 ` [edk2-devel] " Jeremy Linton
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