From 66ab1fb395f85e018cb1c6ae0d3a14aa46373f84 Mon Sep 17 00:00:00 2001
From: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Date: Fri, 7 Aug 2020 16:35:05 +0200
Subject: ramips: drop support for kernel 4.14

The target seems to be working on 5.4, so drop 4.14 support in
preparation for removing it from master entirely.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
---
 .../ramips/patches-4.14/101-mt7621-timer.patch     | 87 ----------------------
 1 file changed, 87 deletions(-)
 delete mode 100644 target/linux/ramips/patches-4.14/101-mt7621-timer.patch

(limited to 'target/linux/ramips/patches-4.14/101-mt7621-timer.patch')

diff --git a/target/linux/ramips/patches-4.14/101-mt7621-timer.patch b/target/linux/ramips/patches-4.14/101-mt7621-timer.patch
deleted file mode 100644
index 10edafd412..0000000000
--- a/target/linux/ramips/patches-4.14/101-mt7621-timer.patch
+++ /dev/null
@@ -1,87 +0,0 @@
---- a/arch/mips/ralink/mt7621.c
-+++ b/arch/mips/ralink/mt7621.c
-@@ -9,6 +9,7 @@
- 
- #include <linux/kernel.h>
- #include <linux/init.h>
-+#include <linux/jiffies.h>
- 
- #include <asm/mipsregs.h>
- #include <asm/smp-ops.h>
-@@ -16,6 +17,7 @@
- #include <asm/mach-ralink/ralink_regs.h>
- #include <asm/mach-ralink/mt7621.h>
- #include <asm/mips-boards/launch.h>
-+#include <asm/delay.h>
- 
- #include <pinmux.h>
- 
-@@ -177,6 +179,58 @@ bool plat_cpu_core_present(int core)
- 	return true;
- }
- 
-+#define LPS_PREC 8
-+/*
-+*  Re-calibration lpj(loop-per-jiffy).
-+*  (derived from kernel/calibrate.c)
-+*/
-+static int udelay_recal(void)
-+{
-+	unsigned int i, lpj = 0;
-+	unsigned long ticks, loopbit;
-+	int lps_precision = LPS_PREC;
-+
-+	lpj = (1<<12);
-+
-+	while ((lpj <<= 1) != 0) {
-+		/* wait for "start of" clock tick */
-+		ticks = jiffies;
-+		while (ticks == jiffies)
-+			/* nothing */;
-+
-+		/* Go .. */
-+		ticks = jiffies;
-+		__delay(lpj);
-+		ticks = jiffies - ticks;
-+		if (ticks)
-+			break;
-+	}
-+
-+	/*
-+	 * Do a binary approximation to get lpj set to
-+	 * equal one clock (up to lps_precision bits)
-+	 */
-+	lpj >>= 1;
-+	loopbit = lpj;
-+	while (lps_precision-- && (loopbit >>= 1)) {
-+		lpj |= loopbit;
-+		ticks = jiffies;
-+		while (ticks == jiffies)
-+			/* nothing */;
-+		ticks = jiffies;
-+		__delay(lpj);
-+		if (jiffies != ticks)   /* longer than 1 tick */
-+			lpj &= ~loopbit;
-+	}
-+	printk(KERN_INFO "%d CPUs re-calibrate udelay(lpj = %d)\n", NR_CPUS, lpj);
-+
-+	for(i=0; i< NR_CPUS; i++)
-+		cpu_data[i].udelay_val = lpj;
-+
-+	return 0;
-+}
-+device_initcall(udelay_recal);
-+
- void prom_soc_init(struct ralink_soc_info *soc_info)
- {
- 	void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE);
---- a/arch/mips/ralink/Kconfig
-+++ b/arch/mips/ralink/Kconfig
-@@ -59,6 +59,7 @@ choice
- 		select CLKSRC_MIPS_GIC
- 		select HW_HAS_PCI
- 		select WEAK_REORDERING_BEYOND_LLSC
-+		select GENERIC_CLOCKEVENTS_BROADCAST
- endchoice
- 
- choice
-- 
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