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-rw-r--r--target/linux/lantiq/patches-3.3/0047-MIPS-adds-gptu-driver.patch189
1 files changed, 0 insertions, 189 deletions
diff --git a/target/linux/lantiq/patches-3.3/0047-MIPS-adds-gptu-driver.patch b/target/linux/lantiq/patches-3.3/0047-MIPS-adds-gptu-driver.patch
deleted file mode 100644
index fc4af1c01e..0000000000
--- a/target/linux/lantiq/patches-3.3/0047-MIPS-adds-gptu-driver.patch
+++ /dev/null
@@ -1,189 +0,0 @@
-From 4dd444aa83346f37a2efcb10a2e3c83db2bf4ca5 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Wed, 14 Mar 2012 15:37:19 +0100
-Subject: [PATCH 47/70] MIPS: adds gptu driver
-
----
- arch/mips/lantiq/xway/gptu.c | 176 ++++++++++++++++++++++++++++++++++++++++++
- 1 files changed, 176 insertions(+), 0 deletions(-)
- create mode 100644 arch/mips/lantiq/xway/gptu.c
-
---- /dev/null
-+++ b/arch/mips/lantiq/xway/gptu.c
-@@ -0,0 +1,176 @@
-+/*
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License version 2 as published
-+ * by the Free Software Foundation.
-+ *
-+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/io.h>
-+#include <linux/ioport.h>
-+#include <linux/pm.h>
-+#include <linux/export.h>
-+#include <linux/delay.h>
-+#include <linux/interrupt.h>
-+#include <asm/reboot.h>
-+
-+#include <lantiq_soc.h>
-+#include "../clk.h"
-+
-+#include "../devices.h"
-+
-+#define ltq_gptu_w32(x, y) ltq_w32((x), ltq_gptu_membase + (y))
-+#define ltq_gptu_r32(x) ltq_r32(ltq_gptu_membase + (x))
-+
-+
-+/* the magic ID byte of the core */
-+#define GPTU_MAGIC 0x59
-+/* clock control register */
-+#define GPTU_CLC 0x00
-+/* id register */
-+#define GPTU_ID 0x08
-+/* interrupt node enable */
-+#define GPTU_IRNEN 0xf4
-+/* interrupt control register */
-+#define GPTU_IRCR 0xf8
-+/* interrupt capture register */
-+#define GPTU_IRNCR 0xfc
-+/* there are 3 identical blocks of 2 timers. calculate register offsets */
-+#define GPTU_SHIFT(x) (x % 2 ? 4 : 0)
-+#define GPTU_BASE(x) (((x >> 1) * 0x20) + 0x10)
-+/* timer control register */
-+#define GPTU_CON(x) (GPTU_BASE(x) + GPTU_SHIFT(x) + 0x00)
-+/* timer auto reload register */
-+#define GPTU_RUN(x) (GPTU_BASE(x) + GPTU_SHIFT(x) + 0x08)
-+/* timer manual reload register */
-+#define GPTU_RLD(x) (GPTU_BASE(x) + GPTU_SHIFT(x) + 0x10)
-+/* timer count register */
-+#define GPTU_CNT(x) (GPTU_BASE(x) + GPTU_SHIFT(x) + 0x18)
-+
-+/* GPTU_CON(x) */
-+#define CON_CNT BIT(2)
-+#define CON_EDGE_FALL BIT(7)
-+#define CON_SYNC BIT(8)
-+#define CON_CLK_INT BIT(10)
-+
-+/* GPTU_RUN(x) */
-+#define RUN_SEN BIT(0)
-+#define RUN_RL BIT(2)
-+
-+/* set clock to runmode */
-+#define CLC_RMC BIT(8)
-+/* bring core out of suspend */
-+#define CLC_SUSPEND BIT(4)
-+/* the disable bit */
-+#define CLC_DISABLE BIT(0)
-+
-+#define TIMER_INTERRUPT (INT_NUM_IM3_IRL0 + 22)
-+
-+enum gptu_timer {
-+ TIMER1A = 0,
-+ TIMER1B,
-+ TIMER2A,
-+ TIMER2B,
-+ TIMER3A,
-+ TIMER3B
-+};
-+
-+static struct resource ltq_gptu_resource =
-+ MEM_RES("GPTU", LTQ_GPTU_BASE_ADDR, LTQ_GPTU_SIZE);
-+
-+static void __iomem *ltq_gptu_membase;
-+
-+static irqreturn_t timer_irq_handler(int irq, void *priv)
-+{
-+ int timer = irq - TIMER_INTERRUPT;
-+ ltq_gptu_w32(1 << timer, GPTU_IRNCR);
-+ return IRQ_HANDLED;
-+}
-+
-+static void gptu_hwinit(void)
-+{
-+ struct clk *clk = clk_get_sys("ltq_gptu", NULL);
-+ clk_enable(clk);
-+ ltq_gptu_w32(0x00, GPTU_IRNEN);
-+ ltq_gptu_w32(0xff, GPTU_IRNCR);
-+ ltq_gptu_w32(CLC_RMC | CLC_SUSPEND, GPTU_CLC);
-+}
-+
-+static void gptu_hwexit(void)
-+{
-+ ltq_gptu_w32(0x00, GPTU_IRNEN);
-+ ltq_gptu_w32(0xff, GPTU_IRNCR);
-+ ltq_gptu_w32(CLC_DISABLE, GPTU_CLC);
-+}
-+
-+static int ltq_gptu_enable(struct clk *clk)
-+{
-+ int ret = request_irq(TIMER_INTERRUPT + clk->bits, timer_irq_handler,
-+ IRQF_TIMER, "timer", NULL);
-+ if (ret) {
-+ pr_err("gptu: failed to request irq\n");
-+ return ret;
-+ }
-+
-+ ltq_gptu_w32(CON_CNT | CON_EDGE_FALL | CON_SYNC | CON_CLK_INT,
-+ GPTU_CON(clk->bits));
-+ ltq_gptu_w32(1, GPTU_RLD(clk->bits));
-+ ltq_gptu_w32(ltq_gptu_r32(GPTU_IRNEN) | clk->bits, GPTU_IRNEN);
-+ ltq_gptu_w32(RUN_SEN | RUN_RL, GPTU_RUN(clk->bits));
-+ return 0;
-+}
-+
-+static void ltq_gptu_disable(struct clk *clk)
-+{
-+ ltq_gptu_w32(0, GPTU_RUN(clk->bits));
-+ ltq_gptu_w32(0, GPTU_CON(clk->bits));
-+ ltq_gptu_w32(0, GPTU_RLD(clk->bits));
-+ ltq_gptu_w32(ltq_gptu_r32(GPTU_IRNEN) & ~clk->bits, GPTU_IRNEN);
-+ free_irq(TIMER_INTERRUPT + clk->bits, NULL);
-+}
-+
-+static inline void clkdev_add_gptu(const char *con, unsigned int timer)
-+{
-+ struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
-+
-+ clk->cl.dev_id = "ltq_gptu";
-+ clk->cl.con_id = con;
-+ clk->cl.clk = clk;
-+ clk->enable = ltq_gptu_enable;
-+ clk->disable = ltq_gptu_disable;
-+ clk->bits = timer;
-+ clkdev_add(&clk->cl);
-+}
-+
-+static int __init gptu_setup(void)
-+{
-+ /* remap gptu register range */
-+ ltq_gptu_membase = ltq_remap_resource(&ltq_gptu_resource);
-+ if (!ltq_gptu_membase)
-+ panic("Failed to remap gptu memory");
-+
-+ /* power up the core */
-+ gptu_hwinit();
-+
-+ /* the gptu has a ID register */
-+ if (((ltq_gptu_r32(GPTU_ID) >> 8) & 0xff) != GPTU_MAGIC) {
-+ pr_err("gptu: failed to find magic\n");
-+ gptu_hwexit();
-+ return -ENAVAIL;
-+ }
-+
-+ /* register the clocks */
-+ clkdev_add_gptu("timer1a", TIMER1A);
-+ clkdev_add_gptu("timer1b", TIMER1B);
-+ clkdev_add_gptu("timer2a", TIMER2A);
-+ clkdev_add_gptu("timer2b", TIMER2B);
-+ clkdev_add_gptu("timer3a", TIMER3A);
-+ clkdev_add_gptu("timer3b", TIMER3B);
-+
-+ pr_info("gptu: 6 timers loaded\n");
-+
-+ return 0;
-+}
-+
-+arch_initcall(gptu_setup);