brcm2708: remove linux 4.14 support

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

1 files changed, 0 insertions, 115 deletions

diff --git a/target/linux/brcm2708/patches-4.14/950-0028-clk-bcm2835-Read-max-core-clock-from-firmware.patch b/target/linux/brcm2708/patches-4.14/950-0028-clk-bcm2835-Read-max-core-clock-from-firmware.patch
deleted file mode 100644
index b232c0c139..0000000000
--- a/target/linux/brcm2708/patches-4.14/950-0028-clk-bcm2835-Read-max-core-clock-from-firmware.patch
+++ /dev/null
@@ -1,115 +0,0 @@
-From a3927566a6d90268423ae58aad12a71b9bf39dd9 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Mon, 6 Mar 2017 09:06:18 +0000
-Subject: [PATCH 028/454] clk-bcm2835: Read max core clock from firmware
-
-The VPU is responsible for managing the core clock, usually under
-direction from the bcm2835-cpufreq driver but not via the clk-bcm2835
-driver. Since the core frequency can change without warning, it is
-safer to report the maximum clock rate to users of the core clock -
-I2C, SPI and the mini UART - to err on the safe side when calculating
-clock divisors.
-
-If the DT node for the clock driver includes a reference to the
-firmware node, use the firmware API to query the maximum core clock
-instead of reading the divider registers.
-
-Prior to this patch, a "100KHz" I2C bus was sometimes clocked at about
-160KHz. In particular, switching to the 4.9 kernel was likely to break
-SenseHAT usage on a Pi3.
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/clk/bcm/clk-bcm2835.c | 39 ++++++++++++++++++++++++++++++++++-
- 1 file changed, 38 insertions(+), 1 deletion(-)
-
---- a/drivers/clk/bcm/clk-bcm2835.c
-+++ b/drivers/clk/bcm/clk-bcm2835.c
-@@ -45,6 +45,7 @@
- #include <linux/platform_device.h>
- #include <linux/slab.h>
- #include <dt-bindings/clock/bcm2835.h>
-+#include <soc/bcm2835/raspberrypi-firmware.h>
- 
- #define CM_PASSWORD		0x5a000000
- 
-@@ -299,6 +300,8 @@
- #define LOCK_TIMEOUT_NS		100000000
- #define BCM2835_MAX_FB_RATE	1750000000u
- 
-+#define VCMSG_ID_CORE_CLOCK     4
-+
- /*
-  * Names of clocks used within the driver that need to be replaced
-  * with an external parent's name.  This array is in the order that
-@@ -317,6 +320,7 @@ static const char *const cprman_parent_n
- struct bcm2835_cprman {
- 	struct device *dev;
- 	void __iomem *regs;
-+	struct rpi_firmware *fw;
- 	spinlock_t regs_lock; /* spinlock for all clocks */
- 
- 	/*
-@@ -1032,6 +1036,30 @@ static unsigned long bcm2835_clock_get_r
- 	return bcm2835_clock_rate_from_divisor(clock, parent_rate, div);
- }
- 
-+static unsigned long bcm2835_clock_get_rate_vpu(struct clk_hw *hw,
-+						unsigned long parent_rate)
-+{
-+	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
-+	struct bcm2835_cprman *cprman = clock->cprman;
-+
-+	if (cprman->fw) {
-+		struct {
-+			u32 id;
-+			u32 val;
-+		} packet;
-+
-+		packet.id = VCMSG_ID_CORE_CLOCK;
-+		packet.val = 0;
-+
-+		if (!rpi_firmware_property(cprman->fw,
-+					   RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
-+					   &packet, sizeof(packet)))
-+			return packet.val;
-+	}
-+
-+	return bcm2835_clock_get_rate(hw, parent_rate);
-+}
-+
- static void bcm2835_clock_wait_busy(struct bcm2835_clock *clock)
- {
- 	struct bcm2835_cprman *cprman = clock->cprman;
-@@ -1321,7 +1349,7 @@ static int bcm2835_vpu_clock_is_on(struc
-  */
- static const struct clk_ops bcm2835_vpu_clock_clk_ops = {
- 	.is_prepared = bcm2835_vpu_clock_is_on,
--	.recalc_rate = bcm2835_clock_get_rate,
-+	.recalc_rate = bcm2835_clock_get_rate_vpu,
- 	.set_rate = bcm2835_clock_set_rate,
- 	.determine_rate = bcm2835_clock_determine_rate,
- 	.set_parent = bcm2835_clock_set_parent,
-@@ -2201,6 +2229,7 @@ static int bcm2835_clk_probe(struct plat
- 	struct resource *res;
- 	const struct bcm2835_clk_desc *desc;
- 	const size_t asize = ARRAY_SIZE(clk_desc_array);
-+	struct device_node *fw_node;
- 	size_t i;
- 	u32 clk_id;
- 	int ret;
-@@ -2218,6 +2247,14 @@ static int bcm2835_clk_probe(struct plat
- 	if (IS_ERR(cprman->regs))
- 		return PTR_ERR(cprman->regs);
- 
-+	fw_node = of_parse_phandle(dev->of_node, "firmware", 0);
-+	if (fw_node) {
-+		struct rpi_firmware *fw = rpi_firmware_get(NULL);
-+		if (!fw)
-+			return -EPROBE_DEFER;
-+		cprman->fw = fw;
-+	}
-+
- 	memset(bcm2835_clk_claimed, 0, sizeof(bcm2835_clk_claimed));
- 	for (i = 0;
- 	     !of_property_read_u32_index(pdev->dev.of_node, "claim-clocks",