diff mbox series

[U-Boot,v3,9/9] arm: sunxi: Reduce inrush current on Olimex OLinuXino-A20-Lime2-eMMC

Message ID 57ff3c4857feca66e69839ad7ecd22017d39297c.1542823428.git-series.plaes@plaes.org
State Accepted
Commit 0fe52ae0b5e2e2625119ab5f6791c396380d5e86
Delegated to: Jagannadha Sutradharudu Teki
Headers show
Series Stop AXP from crashing when enabling LDO3 | expand

Commit Message

Priit Laes Nov. 21, 2018, 6:05 p.m. UTC 
From: Priit Laes <priit.laes@paf.com>

The lime2 features a too large capacitor on the LDO3 output, which
causes the PMIC to shutdown when enabling power. To be able to still
boot up however, we must gradually enable power on LDO3 for this board.

We do this by enabling both the inrush quirk and the maximum slope the
AXP209 supports.

Signed-off-by: Priit Laes <plaes@plaes.org>
---
 configs/A20-OLinuXino-Lime2-eMMC_defconfig | 2 ++
 1 file changed, 2 insertions(+)

Comments

Maxime Ripard Nov. 22, 2018, 8:23 a.m. UTC | #1 
On Wed, Nov 21, 2018 at 08:05:33PM +0200, Priit Laes wrote:
> From: Priit Laes <priit.laes@paf.com>
> 
> The lime2 features a too large capacitor on the LDO3 output, which
> causes the PMIC to shutdown when enabling power. To be able to still
> boot up however, we must gradually enable power on LDO3 for this board.
> 
> We do this by enabling both the inrush quirk and the maximum slope the
> AXP209 supports.
> 
> Signed-off-by: Priit Laes <plaes@plaes.org>

Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>

Maxime
diff mbox series

Patch

diff --git a/configs/A20-OLinuXino-Lime2-eMMC_defconfig b/configs/A20-OLinuXino-Lime2-eMMC_defconfig
index 467ca4e..dee8d02 100644
--- a/configs/A20-OLinuXino-Lime2-eMMC_defconfig
+++ b/configs/A20-OLinuXino-Lime2-eMMC_defconfig
@@ -26,7 +26,9 @@  CONFIG_ETH_DESIGNWARE=y
 CONFIG_RGMII=y
 CONFIG_MII=y
 CONFIG_SUN7I_GMAC=y
+CONFIG_AXP_ALDO3_INRUSH_QUIRK=y
 CONFIG_AXP_ALDO3_VOLT=2800
+CONFIG_AXP_ALDO3_VOLT_SLOPE_08=y
 CONFIG_AXP_ALDO4_VOLT=2800
 CONFIG_SCSI=y
 CONFIG_USB_EHCI_HCD=y