ipq806x: remove support for kernel 4.19

The target uses 5.4 as default kernel since 04/2020.

Kernel 4.19 support is not really maintained anymore, and there has
been a lot of changes between 4.19 and 5.4 on this target. Despite,
new devices are typically added for 5.4 only anyway.

Thus, make maintaining of old stuff and reviewing of new stuff
easier by removing support for kernel 4.19.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

1 files changed, 0 insertions, 71 deletions

diff --git a/target/linux/ipq806x/patches-4.19/0073-pinctrl-qom-use-scm_call-to-route-GPIO-irq-to-Apps.patch b/target/linux/ipq806x/patches-4.19/0073-pinctrl-qom-use-scm_call-to-route-GPIO-irq-to-Apps.patch
deleted file mode 100644
index 78a5bb4173..0000000000
--- a/target/linux/ipq806x/patches-4.19/0073-pinctrl-qom-use-scm_call-to-route-GPIO-irq-to-Apps.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-From 2034addc7e193dc81d7ca60d8884832751b76758 Mon Sep 17 00:00:00 2001
-From: Ajay Kishore <akisho@codeaurora.org>
-Date: Tue, 24 Jan 2017 14:14:16 +0530
-Subject: pinctrl: qcom: use scm_call to route GPIO irq to Apps
-
-For IPQ806x targets, TZ protects the registers that are used to
-configure the routing of interrupts to a target processor.
-To resolve this, this patch uses scm call to route GPIO interrupts
-to application processor. Also the scm call interface is changed.
-
-Change-Id: Ib6c06829d04bc8c20483c36e63da92e26cdef9ce
-Signed-off-by: Ajay Kishore <akisho@codeaurora.org>
----
-
---- a/drivers/pinctrl/qcom/pinctrl-msm.c
-+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
-@@ -30,7 +30,8 @@
- #include <linux/reboot.h>
- #include <linux/pm.h>
- #include <linux/log2.h>
--
-+#include <linux/qcom_scm.h>
-+#include <linux/io.h>
- #include "../core.h"
- #include "../pinconf.h"
- #include "pinctrl-msm.h"
-@@ -628,6 +629,9 @@ static void msm_gpio_irq_mask(struct irq
- 	const struct msm_pingroup *g;
- 	unsigned long flags;
- 	u32 val;
-+	u32 addr;
-+	int ret;
-+	const __be32 *reg;
- 
- 	g = &pctrl->soc->groups[d->hwirq];
- 
-@@ -732,11 +736,30 @@ static int msm_gpio_irq_set_type(struct
- 	else
- 		clear_bit(d->hwirq, pctrl->dual_edge_irqs);
- 
-+	int ret = of_device_is_compatible(pctrl->dev->of_node,
-+					"qcom,ipq8064-pinctrl");
- 	/* Route interrupts to application cpu */
--	val = readl(pctrl->regs + g->intr_target_reg);
--	val &= ~(7 << g->intr_target_bit);
--	val |= g->intr_target_kpss_val << g->intr_target_bit;
--	writel(val, pctrl->regs + g->intr_target_reg);
-+	if (!ret) {
-+		val = readl(pctrl->regs + g->intr_target_reg);
-+		val &= ~(7 << g->intr_target_bit);
-+		val |= g->intr_target_kpss_val << g->intr_target_bit;
-+		writel(val, pctrl->regs + g->intr_target_reg);
-+	} else {
-+		const __be32 *reg = of_get_property(pctrl->dev->of_node, "reg", NULL);
-+		if (reg) {
-+			u32 addr = be32_to_cpup(reg) + g->intr_target_reg;
-+			qcom_scm_io_readl(addr, &val);
-+			__iormb();
-+
-+			val &= ~(7 << g->intr_target_bit);
-+			val |= g->intr_target_kpss_val << g->intr_target_bit;
-+
-+			__iowmb();
-+			ret = qcom_scm_io_writel(addr, val);
-+			if (ret)
-+				pr_err("\n Routing interrupts to Apps proc failed");
-+		}
-+	}
- 
- 	/* Update configuration for gpio.
- 	 * RAW_STATUS_EN is left on for all gpio irqs. Due to the