1 files changed, 0 insertions, 457 deletions
diff --git a/target/linux/layerscape/patches-4.14/803-flextimer-support-layerscape.patch b/target/linux/layerscape/patches-4.14/803-flextimer-support-layerscape.patch
deleted file mode 100644
index b3616f040d..0000000000
--- a/target/linux/layerscape/patches-4.14/803-flextimer-support-layerscape.patch
+++ /dev/null
@@ -1,457 +0,0 @@
-From 0f31298eb0a9b2cd7990b709ff18229fadfa474b Mon Sep 17 00:00:00 2001
-From: Biwen Li <biwen.li@nxp.com>
-Date: Wed, 17 Apr 2019 18:58:38 +0800
-Subject: [PATCH] flextimer: support layerscape
-
-This is an integrated patch of flextimer for layerscape
-
-Signed-off-by: Biwen Li <biwen.li@nxp.com>
-Signed-off-by: Meng Yi <meng.yi@nxp.com>
-Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
-Signed-off-by: Zhang Ying-22455 <ying.zhang22455@nxp.com>
----
- .../bindings/soc/fsl/layerscape/ftm-alarm.txt |  32 ++
- drivers/clocksource/fsl_ftm_timer.c           |   8 +-
- drivers/soc/fsl/layerscape/ftm_alarm.c        | 382 ++++++++++++++++++
- 3 files changed, 418 insertions(+), 4 deletions(-)
- create mode 100644 Documentation/devicetree/bindings/soc/fsl/layerscape/ftm-alarm.txt
- create mode 100644 drivers/soc/fsl/layerscape/ftm_alarm.c
-
---- /dev/null
-+++ b/Documentation/devicetree/bindings/soc/fsl/layerscape/ftm-alarm.txt
-@@ -0,0 +1,32 @@
-+Freescale FlexTimer Module (FTM) Alarm
-+
-+Required properties:
-+
-+- compatible : Should be "fsl,ftm-alarm" or "fsl,<chip>-ftm-alarm", the
-+	       supported chips include
-+	       "fsl,ls1012a-ftm-alarm"
-+	       "fsl,ls1021a-ftm-alarm"
-+	       "fsl,ls1043a-ftm-alarm"
-+	       "fsl,ls1046a-ftm-alarm"
-+	       "fsl,ls1088a-ftm-alarm"
-+	       "fsl,ls208xa-ftm-alarm"
-+- reg : Specifies base physical address and size of the register sets for the
-+  FlexTimer Module and base physical address of IP Powerdown Exception Control
-+  Register.
-+- reg-names: names of the mapped memory regions listed in regs property.
-+  should include the following entries:
-+  "ftm":    Address of the register sets for FlexTimer Module
-+  "pmctrl": Address of IP Powerdown Exception Control register
-+- interrupts : Should be the FlexTimer Module interrupt.
-+- big-endian: If the host controller is big-endian mode, specify this property.
-+  The default endian mode is little-endian.
-+
-+Example:
-+ftm0: ftm0@29d0000 {
-+	compatible = "fsl,ls1043a-ftm-alarm";
-+	reg = <0x0 0x29d0000 0x0 0x10000>,
-+	      <0x0 0x1ee2140 0x0 0x4>;
-+	reg-names = "ftm", "pmctrl";
-+	interrupts = <0 86 0x4>;
-+	big-endian;
-+};
---- a/drivers/clocksource/fsl_ftm_timer.c
-+++ b/drivers/clocksource/fsl_ftm_timer.c
-@@ -83,11 +83,11 @@ static inline void ftm_counter_disable(v
- 
- static inline void ftm_irq_acknowledge(void __iomem *base)
- {
--	u32 val;
-+	unsigned int timeout = 100;
- 
--	val = ftm_readl(base + FTM_SC);
--	val &= ~FTM_SC_TOF;
--	ftm_writel(val, base + FTM_SC);
-+	while ((FTM_SC_TOF & ftm_readl(base + FTM_SC)) && timeout--)
-+		ftm_writel(ftm_readl(base + FTM_SC) & (~FTM_SC_TOF),
-+			   base + FTM_SC);
- }
- 
- static inline void ftm_irq_enable(void __iomem *base)
---- /dev/null
-+++ b/drivers/soc/fsl/layerscape/ftm_alarm.c
-@@ -0,0 +1,382 @@
-+/*
-+ * Freescale FlexTimer Module (FTM) Alarm driver.
-+ *
-+ * Copyright 2014 Freescale Semiconductor, Inc.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * as published by the Free Software Foundation; either version 2
-+ * of the License, or (at your option) any later version.
-+ */
-+
-+#include <linux/device.h>
-+#include <linux/err.h>
-+#include <linux/interrupt.h>
-+#include <linux/io.h>
-+#include <linux/of_address.h>
-+#include <linux/of_irq.h>
-+#include <linux/platform_device.h>
-+#include <linux/of.h>
-+#include <linux/of_device.h>
-+#include <linux/libata.h>
-+#include <linux/module.h>
-+
-+#define FTM_SC			0x00
-+#define FTM_SC_CLK_SHIFT	3
-+#define FTM_SC_CLK_MASK		(0x3 << FTM_SC_CLK_SHIFT)
-+#define FTM_SC_CLK(c)		((c) << FTM_SC_CLK_SHIFT)
-+#define FTM_SC_PS_MASK		0x7
-+#define FTM_SC_TOIE		BIT(6)
-+#define FTM_SC_TOF		BIT(7)
-+
-+#define FTM_SC_CLKS_FIXED_FREQ	0x02
-+
-+#define FTM_CNT			0x04
-+#define FTM_MOD			0x08
-+#define FTM_CNTIN		0x4C
-+
-+#define FIXED_FREQ_CLK		32000
-+#define MAX_FREQ_DIV		(1 << FTM_SC_PS_MASK)
-+#define MAX_COUNT_VAL		0xffff
-+
-+static void __iomem *ftm1_base;
-+static void __iomem *rcpm_ftm_addr;
-+static void __iomem *scfg_scrachpad_addr;
-+static u32 alarm_freq;
-+static bool big_endian;
-+
-+enum pmu_endian_type {
-+	BIG_ENDIAN,
-+	LITTLE_ENDIAN,
-+};
-+
-+struct rcpm_cfg {
-+	enum pmu_endian_type big_endian; /* Big/Little endian of PMU module */
-+	u32 flextimer_set_bit;	/* FTM is not powerdown during device LPM20 */
-+};
-+
-+static struct rcpm_cfg ls1012a_rcpm_cfg = {
-+	.big_endian = BIG_ENDIAN,
-+	.flextimer_set_bit = 0x20000,
-+};
-+
-+static struct rcpm_cfg ls1021a_rcpm_cfg = {
-+	.big_endian = BIG_ENDIAN,
-+	.flextimer_set_bit = 0x30000000,
-+};
-+
-+static struct rcpm_cfg ls1043a_rcpm_cfg = {
-+	.big_endian = BIG_ENDIAN,
-+	.flextimer_set_bit = 0x20000,
-+};
-+
-+static struct rcpm_cfg ls1046a_rcpm_cfg = {
-+	.big_endian = BIG_ENDIAN,
-+	.flextimer_set_bit = 0x20000,
-+};
-+
-+static struct rcpm_cfg ls1088a_rcpm_cfg = {
-+	.big_endian = LITTLE_ENDIAN,
-+	.flextimer_set_bit = 0x4000,
-+};
-+
-+static struct rcpm_cfg ls208xa_rcpm_cfg = {
-+	.big_endian = LITTLE_ENDIAN,
-+	.flextimer_set_bit = 0x4000,
-+};
-+
-+static struct rcpm_cfg lx2160a_rcpm_cfg = {
-+	.big_endian = LITTLE_ENDIAN,
-+	.flextimer_set_bit = 0x4000,
-+};
-+
-+static const struct of_device_id ippdexpcr_of_match[] = {
-+	{ .compatible = "fsl,ls1012a-ftm-alarm", .data = &ls1012a_rcpm_cfg},
-+	{ .compatible = "fsl,ls1021a-ftm-alarm", .data = &ls1021a_rcpm_cfg},
-+	{ .compatible = "fsl,ls1043a-ftm-alarm", .data = &ls1043a_rcpm_cfg},
-+	{ .compatible = "fsl,ls1046a-ftm-alarm", .data = &ls1046a_rcpm_cfg},
-+	{ .compatible = "fsl,ls1088a-ftm-alarm", .data = &ls1088a_rcpm_cfg},
-+	{ .compatible = "fsl,ls208xa-ftm-alarm", .data = &ls208xa_rcpm_cfg},
-+	{ .compatible = "fsl,lx2160a-ftm-alarm", .data = &lx2160a_rcpm_cfg},
-+	{},
-+};
-+MODULE_DEVICE_TABLE(of, ippdexpcr_of_match);
-+
-+static inline u32 ftm_readl(void __iomem *addr)
-+{
-+	if (big_endian)
-+		return ioread32be(addr);
-+
-+	return ioread32(addr);
-+}
-+
-+static inline void ftm_writel(u32 val, void __iomem *addr)
-+{
-+	if (big_endian)
-+		iowrite32be(val, addr);
-+	else
-+		iowrite32(val, addr);
-+}
-+
-+static inline void ftm_counter_enable(void __iomem *base)
-+{
-+	u32 val;
-+
-+	/* select and enable counter clock source */
-+	val = ftm_readl(base + FTM_SC);
-+	val &= ~(FTM_SC_PS_MASK | FTM_SC_CLK_MASK);
-+	val |= (FTM_SC_PS_MASK | FTM_SC_CLK(FTM_SC_CLKS_FIXED_FREQ));
-+	ftm_writel(val, base + FTM_SC);
-+}
-+
-+static inline void ftm_counter_disable(void __iomem *base)
-+{
-+	u32 val;
-+
-+	/* disable counter clock source */
-+	val = ftm_readl(base + FTM_SC);
-+	val &= ~(FTM_SC_PS_MASK | FTM_SC_CLK_MASK);
-+	ftm_writel(val, base + FTM_SC);
-+}
-+
-+static inline void ftm_irq_acknowledge(void __iomem *base)
-+{
-+	unsigned int timeout = 100;
-+
-+	while ((FTM_SC_TOF & ftm_readl(base + FTM_SC)) && timeout--)
-+		ftm_writel(ftm_readl(base + FTM_SC) & (~FTM_SC_TOF),
-+			   base + FTM_SC);
-+}
-+
-+static inline void ftm_irq_enable(void __iomem *base)
-+{
-+	u32 val;
-+
-+	val = ftm_readl(base + FTM_SC);
-+	val |= FTM_SC_TOIE;
-+	ftm_writel(val, base + FTM_SC);
-+}
-+
-+static inline void ftm_irq_disable(void __iomem *base)
-+{
-+	u32 val;
-+
-+	val = ftm_readl(base + FTM_SC);
-+	val &= ~FTM_SC_TOIE;
-+	ftm_writel(val, base + FTM_SC);
-+}
-+
-+static inline void ftm_reset_counter(void __iomem *base)
-+{
-+	/*
-+	 * The CNT register contains the FTM counter value.
-+	 * Reset clears the CNT register. Writing any value to COUNT
-+	 * updates the counter with its initial value, CNTIN.
-+	 */
-+	ftm_writel(0x00, base + FTM_CNT);
-+}
-+
-+static u32 time_to_cycle(unsigned long time)
-+{
-+	u32 cycle;
-+
-+	cycle = time * alarm_freq;
-+	if (cycle > MAX_COUNT_VAL) {
-+		pr_err("Out of alarm range.\n");
-+		cycle = 0;
-+	}
-+
-+	return cycle;
-+}
-+
-+static u32 cycle_to_time(u32 cycle)
-+{
-+	return cycle / alarm_freq + 1;
-+}
-+
-+static void ftm_clean_alarm(void)
-+{
-+	ftm_counter_disable(ftm1_base);
-+
-+	ftm_writel(0x00, ftm1_base + FTM_CNTIN);
-+	ftm_writel(~0U, ftm1_base + FTM_MOD);
-+
-+	ftm_reset_counter(ftm1_base);
-+}
-+
-+static int ftm_set_alarm(u64 cycle)
-+{
-+	ftm_irq_disable(ftm1_base);
-+
-+	/*
-+	 * The counter increments until the value of MOD is reached,
-+	 * at which point the counter is reloaded with the value of CNTIN.
-+	 * The TOF (the overflow flag) bit is set when the FTM counter
-+	 * changes from MOD to CNTIN. So we should using the cycle - 1.
-+	 */
-+	ftm_writel(cycle - 1, ftm1_base + FTM_MOD);
-+
-+	ftm_counter_enable(ftm1_base);
-+
-+	ftm_irq_enable(ftm1_base);
-+
-+	return 0;
-+}
-+
-+static irqreturn_t ftm_alarm_interrupt(int irq, void *dev_id)
-+{
-+	ftm_irq_acknowledge(ftm1_base);
-+	ftm_irq_disable(ftm1_base);
-+	ftm_clean_alarm();
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static ssize_t ftm_alarm_show(struct device *dev,
-+			      struct device_attribute *attr,
-+			      char *buf)
-+{
-+	u32 count, val;
-+
-+	count = ftm_readl(ftm1_base + FTM_MOD);
-+	val = ftm_readl(ftm1_base + FTM_CNT);
-+	val = (count & MAX_COUNT_VAL) - val;
-+	val = cycle_to_time(val);
-+
-+	return sprintf(buf, "%u\n", val);
-+}
-+
-+static ssize_t ftm_alarm_store(struct device *dev,
-+			       struct device_attribute *attr,
-+			       const char *buf, size_t count)
-+{
-+	u32 cycle;
-+	unsigned long time;
-+
-+	if (kstrtoul(buf, 0, &time))
-+		return -EINVAL;
-+
-+	ftm_clean_alarm();
-+
-+	cycle = time_to_cycle(time);
-+	if (!cycle)
-+		return -EINVAL;
-+
-+	ftm_set_alarm(cycle);
-+
-+	return count;
-+}
-+
-+static struct device_attribute ftm_alarm_attributes = __ATTR(ftm_alarm, 0644,
-+			ftm_alarm_show, ftm_alarm_store);
-+
-+static int ftm_alarm_probe(struct platform_device *pdev)
-+{
-+	struct device_node *np = pdev->dev.of_node;
-+	struct resource *r;
-+	int irq;
-+	int ret;
-+	struct rcpm_cfg *rcpm_cfg;
-+	u32 ippdexpcr, flextimer;
-+	const struct of_device_id *of_id;
-+	enum pmu_endian_type endian;
-+
-+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	if (!r)
-+		return -ENODEV;
-+
-+	ftm1_base = devm_ioremap_resource(&pdev->dev, r);
-+	if (IS_ERR(ftm1_base))
-+		return PTR_ERR(ftm1_base);
-+
-+	of_id = of_match_node(ippdexpcr_of_match, np);
-+	if (!of_id)
-+		return -ENODEV;
-+
-+	rcpm_cfg = devm_kzalloc(&pdev->dev, sizeof(*rcpm_cfg), GFP_KERNEL);
-+	if (!rcpm_cfg)
-+		return -ENOMEM;
-+
-+	rcpm_cfg = (struct rcpm_cfg *)of_id->data;
-+	endian = rcpm_cfg->big_endian;
-+	flextimer = rcpm_cfg->flextimer_set_bit;
-+
-+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pmctrl");
-+	if (r) {
-+		rcpm_ftm_addr = devm_ioremap_resource(&pdev->dev, r);
-+		if (IS_ERR(rcpm_ftm_addr))
-+			return PTR_ERR(rcpm_ftm_addr);
-+		if (endian == BIG_ENDIAN)
-+			ippdexpcr = ioread32be(rcpm_ftm_addr);
-+		else
-+			ippdexpcr = ioread32(rcpm_ftm_addr);
-+		ippdexpcr |= flextimer;
-+		if (endian == BIG_ENDIAN)
-+			iowrite32be(ippdexpcr, rcpm_ftm_addr);
-+		else
-+			iowrite32(ippdexpcr, rcpm_ftm_addr);
-+
-+		r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scrachpad");
-+		if (r) {
-+			scfg_scrachpad_addr = devm_ioremap_resource(&pdev->dev, r);
-+			iowrite32(ippdexpcr, scfg_scrachpad_addr);
-+		}
-+	}
-+
-+	irq = irq_of_parse_and_map(np, 0);
-+	if (irq <= 0) {
-+		pr_err("ftm: unable to get IRQ from DT, %d\n", irq);
-+		return -EINVAL;
-+	}
-+
-+	big_endian = of_property_read_bool(np, "big-endian");
-+
-+	ret = devm_request_irq(&pdev->dev, irq, ftm_alarm_interrupt,
-+			       IRQF_NO_SUSPEND, dev_name(&pdev->dev), NULL);
-+	if (ret < 0) {
-+		dev_err(&pdev->dev, "failed to request irq\n");
-+		return ret;
-+	}
-+
-+	ret = device_create_file(&pdev->dev, &ftm_alarm_attributes);
-+	if (ret) {
-+		dev_err(&pdev->dev, "create sysfs fail.\n");
-+		return ret;
-+	}
-+
-+	alarm_freq = (u32)FIXED_FREQ_CLK / (u32)MAX_FREQ_DIV;
-+
-+	ftm_clean_alarm();
-+
-+	device_init_wakeup(&pdev->dev, true);
-+
-+	return ret;
-+}
-+
-+static const struct of_device_id ftm_alarm_match[] = {
-+	{ .compatible = "fsl,ftm-alarm", },
-+	{ .compatible = "fsl,ls1012a-ftm-alarm", },
-+	{ .compatible = "fsl,ls1021a-ftm-alarm", },
-+	{ .compatible = "fsl,ls1043a-ftm-alarm", },
-+	{ .compatible = "fsl,ls1046a-ftm-alarm", },
-+	{ .compatible = "fsl,ls1088a-ftm-alarm", },
-+	{ .compatible = "fsl,ls208xa-ftm-alarm", },
-+	{ .compatible = "fsl,lx2160a-ftm-alarm", },
-+	{ .compatible = "fsl,ftm-timer", },
-+	{ },
-+};
-+
-+static struct platform_driver ftm_alarm_driver = {
-+	.probe		= ftm_alarm_probe,
-+	.driver		= {
-+		.name	= "ftm-alarm",
-+		.owner	= THIS_MODULE,
-+		.of_match_table = ftm_alarm_match,
-+	},
-+};
-+
-+static int __init ftm_alarm_init(void)
-+{
-+	return platform_driver_register(&ftm_alarm_driver);
-+}
-+device_initcall(ftm_alarm_init);