diff options
Diffstat (limited to 'target/linux/apm821xx/patches-5.10')
| -rw-r--r-- | target/linux/apm821xx/patches-5.10/100-dwc2-disable-powerdown.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/apm821xx/patches-5.10/100-dwc2-disable-powerdown.patch b/target/linux/apm821xx/patches-5.10/100-dwc2-disable-powerdown.patch new file mode 100644 index 0000000000..ede7d732ff --- /dev/null +++ b/target/linux/apm821xx/patches-5.10/100-dwc2-disable-powerdown.patch @@ -0,0 +1,29 @@ +From 88ca61467a0897c79b1fbf8f5c30691b43b52613 Mon Sep 17 00:00:00 2001 +From: Christian Lamparter <chunkeey@gmail.com> +Date: Sun, 26 Dec 2021 22:36:29 +0200 +Subject: [PATCH] dwc2: temporary force to be powered up all times + +the APM821xx's onchip dwc2 misbehaves with 5.4 and 5.10 +when a USB device gets connected. Instead of announcing +and setting up the USB devices it crashes and burns with: + +[ 22.023476] dwc2 4bff80000.usbotg: dwc2_restore_global_registers: no global registers to restore +[ 22.032245] dwc2 4bff80000.usbotg: dwc2_exit_partial_power_down: failed to restore registers +[ 22.040647] dwc2 4bff80000.usbotg: exit partial_power_down failed +[ 22.058765] dwc2 4bff80000.usbotg: HC died; cleaning up + +This is all seemingly fixed with dwc2 from a 5.16-rc6. + +Signed-off-by: Christian Lamparter <chunkeey@gmail.com> +--- + +--- a/drivers/usb/dwc2/params.c ++++ b/drivers/usb/dwc2/params.c +@@ -137,6 +137,7 @@ static void dwc2_set_amcc_params(struct + struct dwc2_core_params *p = &hsotg->params; + + p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; ++ p->power_down = DWC2_POWER_DOWN_PARAM_NONE; + } + + static void dwc2_set_stm32f4x9_fsotg_params(struct dwc2_hsotg *hsotg) |