kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 130 deletions

diff --git a/target/linux/layerscape/patches-5.4/820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch b/target/linux/layerscape/patches-5.4/820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch
deleted file mode 100644
index 82e2a25e2d..0000000000
--- a/target/linux/layerscape/patches-5.4/820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch
+++ /dev/null
@@ -1,130 +0,0 @@
-From 61d471c8da972c7ebbaf63779bf8100ee1ec54eb Mon Sep 17 00:00:00 2001
-From: Ran Wang <ran.wang_1@nxp.com>
-Date: Wed, 16 Jan 2019 13:23:17 +0800
-Subject: [PATCH] usb: dwc3: Add workaround for host mode VBUS glitch when boot
-
-When DWC3 is set to host mode by programming register DWC3_GCTL, VBUS
-(or its control signal) will be turned on immediately on related Root Hub
-ports. Then, the VBUS is turned off for a little while(15us) when do xhci
-reset (conducted by xhci driver) and back to normal finally, we can
-observe a negative glitch of related signal happen.
-
-This VBUS glitch might cause some USB devices enumeration fail if kernel
-boot with them connected. Such as LS1012AFWRY/LS1043ARDB/LX2160AQDS
-/LS1088ARDB with Kingston 16GB USB2.0/Kingston USB3.0/JetFlash Transcend
-4GB USB2.0 drives. The fail cases include enumerated as full-speed device
-or report wrong device descriptor, etc.
-
-One SW workaround which can fix this is by programing all xhci PORTSC[PP]
-to 0 to turn off VBUS immediately after setting host mode in DWC3 driver
-(per signal measurement result, it will be too late to do it in
-xhci-plat.c or xhci.c). Then, after xhci reset complete in xhci driver,
-PORTSC[PP]s' value will back to 1 automatically and VBUS on at that time,
-no glitch happen and normal enumeration process has no impact.
-
-Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
-Reviewed-by: Peter Chen <peter.chen@nxp.com>
----
- drivers/usb/dwc3/core.c |  3 +++
- drivers/usb/dwc3/core.h |  3 +++
- drivers/usb/dwc3/host.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 54 insertions(+)
-
---- a/drivers/usb/dwc3/core.c
-+++ b/drivers/usb/dwc3/core.c
-@@ -1364,6 +1364,9 @@ static void dwc3_get_properties(struct d
- 	dwc->dis_split_quirk = device_property_read_bool(dev,
- 				"snps,dis-split-quirk");
- 
-+	dwc->host_vbus_glitches = device_property_read_bool(dev,
-+				"snps,host-vbus-glitches");
-+
- 	dwc->lpm_nyet_threshold = lpm_nyet_threshold;
- 	dwc->tx_de_emphasis = tx_de_emphasis;
- 
---- a/drivers/usb/dwc3/core.h
-+++ b/drivers/usb/dwc3/core.h
-@@ -1048,6 +1048,8 @@ struct dwc3_scratchpad_array {
-  * 	3	- Reserved
-  * @dis_metastability_quirk: set to disable metastability quirk.
-  * @dis_split_quirk: set to disable split boundary.
-+ * @host_vbus_glitches: set to avoid vbus glitch during
-+ *                      xhci reset.
-  * @imod_interval: set the interrupt moderation interval in 250ns
-  *                 increments or 0 to disable.
-  */
-@@ -1243,6 +1245,8 @@ struct dwc3 {
- 
- 	unsigned		dis_split_quirk:1;
- 
-+	unsigned		host_vbus_glitches:1;
-+
- 	u16			imod_interval;
- };
- 
---- a/drivers/usb/dwc3/host.c
-+++ b/drivers/usb/dwc3/host.c
-@@ -9,8 +9,49 @@
- 
- #include <linux/platform_device.h>
- 
-+#include "../host/xhci.h"
-+
- #include "core.h"
- 
-+
-+#define XHCI_HCSPARAMS1		0x4
-+#define XHCI_PORTSC_BASE	0x400
-+
-+/*
-+ * dwc3_power_off_all_roothub_ports - Power off all Root hub ports
-+ * @dwc3: Pointer to our controller context structure
-+ */
-+static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc)
-+{
-+	int i, port_num;
-+	u32 reg, op_regs_base, offset;
-+	void __iomem *xhci_regs;
-+
-+	/* xhci regs is not mapped yet, do it temperary here */
-+	if (dwc->xhci_resources[0].start) {
-+		xhci_regs = ioremap(dwc->xhci_resources[0].start,
-+				DWC3_XHCI_REGS_END);
-+		if (IS_ERR(xhci_regs)) {
-+			dev_err(dwc->dev, "Failed to ioremap xhci_regs\n");
-+			return;
-+		}
-+
-+		op_regs_base = HC_LENGTH(readl(xhci_regs));
-+		reg = readl(xhci_regs + XHCI_HCSPARAMS1);
-+		port_num = HCS_MAX_PORTS(reg);
-+
-+		for (i = 1; i <= port_num; i++) {
-+			offset = op_regs_base + XHCI_PORTSC_BASE + 0x10*(i-1);
-+			reg = readl(xhci_regs + offset);
-+			reg &= ~PORT_POWER;
-+			writel(reg, xhci_regs + offset);
-+		}
-+
-+		iounmap(xhci_regs);
-+	} else
-+		dev_err(dwc->dev, "xhci base reg invalid\n");
-+}
-+
- static int dwc3_host_get_irq(struct dwc3 *dwc)
- {
- 	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);
-@@ -50,6 +91,13 @@ int dwc3_host_init(struct dwc3 *dwc)
- 	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);
- 	int			prop_idx = 0;
- 
-+	/*
-+	 * We have to power off all Root hub ports immediately after DWC3 set
-+	 * to host mode to avoid VBUS glitch happen when xhci get reset later.
-+	 */
-+	if (dwc->host_vbus_glitches)
-+		dwc3_power_off_all_roothub_ports(dwc);
-+
- 	irq = dwc3_host_get_irq(dwc);
- 	if (irq < 0)
- 		return irq;