brcm2708: remove linux 4.14 support

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 164 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0108-bcm2835-aux-Add-aux-interrupt-controller.patch b/target/linux/brcm2708/patches-4.14/950-0108-bcm2835-aux-Add-aux-interrupt-controller.patch
deleted file mode 100644
index bf1c1ab744..0000000000
--- a/target/linux/brcm2708/patches-4.14/950-0108-bcm2835-aux-Add-aux-interrupt-controller.patch
+++ /dev/null
@@ -1,164 +0,0 @@
-From 61f87edd9a522d70d979f679d11849d1dc20cedb Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Thu, 23 Mar 2017 16:34:46 +0000
-Subject: [PATCH 108/454] bcm2835-aux: Add aux interrupt controller
-
-The AUX block has a shared interrupt line with a register indicating
-which devices have active IRQs. Expose this as a nested interrupt
-controller to avoid sharing problems.
-
-See: https://github.com/raspberrypi/linux/issues/1484
-     https://github.com/raspberrypi/linux/issues/1573
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/clk/bcm/clk-bcm2835-aux.c | 120 ++++++++++++++++++++++++++++++
- 1 file changed, 120 insertions(+)
-
---- a/drivers/clk/bcm/clk-bcm2835-aux.c
-+++ b/drivers/clk/bcm/clk-bcm2835-aux.c
-@@ -17,17 +17,107 @@
- #include <linux/clk/bcm2835.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
-+#include <linux/interrupt.h>
-+#include <linux/irqdomain.h>
-+#include <linux/of_irq.h>
- #include <dt-bindings/clock/bcm2835-aux.h>
- 
- #define BCM2835_AUXIRQ		0x00
- #define BCM2835_AUXENB		0x04
- 
-+#define BCM2835_AUXIRQ_NUM_IRQS  3
-+
-+#define BCM2835_AUXIRQ_UART_IRQ  0
-+#define BCM2835_AUXIRQ_SPI1_IRQ  1
-+#define BCM2835_AUXIRQ_SPI2_IRQ  2
-+
-+#define BCM2835_AUXIRQ_UART_MASK 0x01
-+#define BCM2835_AUXIRQ_SPI1_MASK 0x02
-+#define BCM2835_AUXIRQ_SPI2_MASK 0x04
-+
-+#define BCM2835_AUXIRQ_ALL_MASK \
-+	(BCM2835_AUXIRQ_UART_MASK | \
-+	 BCM2835_AUXIRQ_SPI1_MASK | \
-+	 BCM2835_AUXIRQ_SPI2_MASK)
-+
-+struct auxirq_state {
-+	void __iomem      *status;
-+	u32                enables;
-+	struct irq_domain *domain;
-+	struct regmap     *local_regmap;
-+};
-+
-+static struct auxirq_state auxirq __read_mostly;
-+
-+static irqreturn_t bcm2835_auxirq_handler(int irq, void *dev_id)
-+{
-+	u32 stat = readl_relaxed(auxirq.status);
-+	u32 masked = stat & auxirq.enables;
-+
-+	if (masked & BCM2835_AUXIRQ_UART_MASK)
-+		generic_handle_irq(irq_linear_revmap(auxirq.domain,
-+						     BCM2835_AUXIRQ_UART_IRQ));
-+
-+	if (masked & BCM2835_AUXIRQ_SPI1_MASK)
-+		generic_handle_irq(irq_linear_revmap(auxirq.domain,
-+						     BCM2835_AUXIRQ_SPI1_IRQ));
-+
-+	if (masked & BCM2835_AUXIRQ_SPI2_MASK)
-+		generic_handle_irq(irq_linear_revmap(auxirq.domain,
-+						     BCM2835_AUXIRQ_SPI2_IRQ));
-+
-+	return (masked & BCM2835_AUXIRQ_ALL_MASK) ? IRQ_HANDLED : IRQ_NONE;
-+}
-+
-+static int bcm2835_auxirq_xlate(struct irq_domain *d,
-+				 struct device_node *ctrlr,
-+				 const u32 *intspec, unsigned int intsize,
-+				 unsigned long *out_hwirq,
-+				 unsigned int *out_type)
-+{
-+	if (WARN_ON(intsize != 1))
-+		return -EINVAL;
-+
-+	if (WARN_ON(intspec[0] >= BCM2835_AUXIRQ_NUM_IRQS))
-+		return -EINVAL;
-+
-+	*out_hwirq = intspec[0];
-+	*out_type = IRQ_TYPE_NONE;
-+	return 0;
-+}
-+
-+static void bcm2835_auxirq_mask(struct irq_data *data)
-+{
-+	irq_hw_number_t hwirq = irqd_to_hwirq(data);
-+
-+	auxirq.enables &= ~(1 << hwirq);
-+}
-+
-+static void bcm2835_auxirq_unmask(struct irq_data *data)
-+{
-+	irq_hw_number_t hwirq = irqd_to_hwirq(data);
-+
-+	auxirq.enables |= (1 << hwirq);
-+}
-+
-+static struct irq_chip bcm2835_auxirq_chip = {
-+	.name = "bcm2835-auxirq",
-+	.irq_mask = bcm2835_auxirq_mask,
-+	.irq_unmask = bcm2835_auxirq_unmask,
-+};
-+
-+static const struct irq_domain_ops bcm2835_auxirq_ops = {
-+	.xlate = bcm2835_auxirq_xlate//irq_domain_xlate_onecell
-+};
-+
- static int bcm2835_aux_clk_probe(struct platform_device *pdev)
- {
- 	struct device *dev = &pdev->dev;
-+	struct device_node *node = dev->of_node;
- 	struct clk_hw_onecell_data *onecell;
- 	const char *parent;
- 	struct clk *parent_clk;
-+	int parent_irq;
- 	struct resource *res;
- 	void __iomem *reg, *gate;
- 
-@@ -41,6 +131,36 @@ static int bcm2835_aux_clk_probe(struct
- 	if (IS_ERR(reg))
- 		return PTR_ERR(reg);
- 
-+	parent_irq = irq_of_parse_and_map(node, 0);
-+	if (parent_irq) {
-+		int ret;
-+		int i;
-+
-+		/* Manage the AUX irq as well */
-+		auxirq.status = reg + BCM2835_AUXIRQ;
-+		auxirq.domain = irq_domain_add_linear(node,
-+						      BCM2835_AUXIRQ_NUM_IRQS,
-+						      &bcm2835_auxirq_ops,
-+						      NULL);
-+		if (!auxirq.domain)
-+			return -ENXIO;
-+
-+		for (i = 0; i < BCM2835_AUXIRQ_NUM_IRQS; i++) {
-+			unsigned int irq = irq_create_mapping(auxirq.domain, i);
-+
-+			if (irq == 0)
-+				return -ENXIO;
-+
-+			irq_set_chip_and_handler(irq, &bcm2835_auxirq_chip,
-+						 handle_level_irq);
-+		}
-+
-+		ret = devm_request_irq(dev, parent_irq, bcm2835_auxirq_handler,
-+				       0, "bcm2835-auxirq", NULL);
-+		if (ret)
-+			return ret;
-+	}
-+
- 	onecell = devm_kmalloc(dev, sizeof(*onecell) + sizeof(*onecell->hws) *
- 			       BCM2835_AUX_CLOCK_COUNT, GFP_KERNEL);
- 	if (!onecell)