T: git git://github.com/ulli-kroll/linux.git
S: Maintained
F: arch/arm/mach-gemini/
-F: drivers/rtc/rtc-gemini.c
+F: drivers/rtc/rtc-ftrtc010.c
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
M: Barry Song <baohua@kernel.org>
This driver can also be built as a module. If so, the module
will be called armada38x-rtc.
-config RTC_DRV_GEMINI
- tristate "Gemini SoC RTC"
- depends on ARCH_GEMINI || COMPILE_TEST
+config RTC_DRV_FTRTC010
+ tristate "Faraday Technology FTRTC010 RTC"
depends on HAS_IOMEM
+ default ARCH_GEMINI
help
If you say Y here you will get support for the
- RTC found on Gemini SoC's.
+ Faraday Technolog FTRTC010 found on e.g. Gemini SoC's.
This driver can also be built as a module. If so, the module
- will be called rtc-gemini.
+ will be called rtc-ftrtc010.
config RTC_DRV_PS3
tristate "PS3 RTC"
obj-$(CONFIG_RTC_DRV_EM3027) += rtc-em3027.o
obj-$(CONFIG_RTC_DRV_EP93XX) += rtc-ep93xx.o
obj-$(CONFIG_RTC_DRV_FM3130) += rtc-fm3130.o
-obj-$(CONFIG_RTC_DRV_GEMINI) += rtc-gemini.o
+obj-$(CONFIG_RTC_DRV_FTRTC010) += rtc-ftrtc010.o
obj-$(CONFIG_RTC_DRV_GENERIC) += rtc-generic.o
obj-$(CONFIG_RTC_DRV_HID_SENSOR_TIME) += rtc-hid-sensor-time.o
obj-$(CONFIG_RTC_DRV_HYM8563) += rtc-hym8563.o
--- /dev/null
+/*
+ * Faraday Technology FTRTC010 driver
+ *
+ * Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Original code for older kernel 2.6.15 are from Stormlinksemi
+ * first update from Janos Laube for > 2.6.29 kernels
+ *
+ * checkpatch fixes and usage of rtc-lib code
+ * Hans Ulli Kroll <ulli.kroll@googlemail.com>
+ */
+
+#include <linux/rtc.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+
+#define DRV_NAME "rtc-ftrtc010"
+
+MODULE_AUTHOR("Hans Ulli Kroll <ulli.kroll@googlemail.com>");
+MODULE_DESCRIPTION("RTC driver for Gemini SoC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+
+struct ftrtc010_rtc {
+ struct rtc_device *rtc_dev;
+ void __iomem *rtc_base;
+ int rtc_irq;
+ struct clk *pclk;
+ struct clk *extclk;
+};
+
+enum ftrtc010_rtc_offsets {
+ FTRTC010_RTC_SECOND = 0x00,
+ FTRTC010_RTC_MINUTE = 0x04,
+ FTRTC010_RTC_HOUR = 0x08,
+ FTRTC010_RTC_DAYS = 0x0C,
+ FTRTC010_RTC_ALARM_SECOND = 0x10,
+ FTRTC010_RTC_ALARM_MINUTE = 0x14,
+ FTRTC010_RTC_ALARM_HOUR = 0x18,
+ FTRTC010_RTC_RECORD = 0x1C,
+ FTRTC010_RTC_CR = 0x20,
+};
+
+static irqreturn_t ftrtc010_rtc_interrupt(int irq, void *dev)
+{
+ return IRQ_HANDLED;
+}
+
+/*
+ * Looks like the RTC in the Gemini SoC is (totaly) broken
+ * We can't read/write directly the time from RTC registers.
+ * We must do some "offset" calculation to get the real time
+ *
+ * This FIX works pretty fine and Stormlinksemi aka Cortina-Networks does
+ * the same thing, without the rtc-lib.c calls.
+ */
+
+static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+ struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
+
+ unsigned int days, hour, min, sec;
+ unsigned long offset, time;
+
+ sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
+ min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
+ hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
+ days = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
+ offset = readl(rtc->rtc_base + FTRTC010_RTC_RECORD);
+
+ time = offset + days * 86400 + hour * 3600 + min * 60 + sec;
+
+ rtc_time_to_tm(time, tm);
+
+ return 0;
+}
+
+static int ftrtc010_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+ struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
+ unsigned int sec, min, hour, day;
+ unsigned long offset, time;
+
+ if (tm->tm_year >= 2148) /* EPOCH Year + 179 */
+ return -EINVAL;
+
+ rtc_tm_to_time(tm, &time);
+
+ sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
+ min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
+ hour = readl(rtc->rtc_base + FTRTC010_RTC_HOUR);
+ day = readl(rtc->rtc_base + FTRTC010_RTC_DAYS);
+
+ offset = time - (day * 86400 + hour * 3600 + min * 60 + sec);
+
+ writel(offset, rtc->rtc_base + FTRTC010_RTC_RECORD);
+ writel(0x01, rtc->rtc_base + FTRTC010_RTC_CR);
+
+ return 0;
+}
+
+static const struct rtc_class_ops ftrtc010_rtc_ops = {
+ .read_time = ftrtc010_rtc_read_time,
+ .set_time = ftrtc010_rtc_set_time,
+};
+
+static int ftrtc010_rtc_probe(struct platform_device *pdev)
+{
+ struct ftrtc010_rtc *rtc;
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int ret;
+
+ rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
+ if (unlikely(!rtc))
+ return -ENOMEM;
+ platform_set_drvdata(pdev, rtc);
+
+ rtc->pclk = devm_clk_get(dev, "PCLK");
+ if (IS_ERR(rtc->pclk)) {
+ dev_err(dev, "could not get PCLK\n");
+ } else {
+ ret = clk_prepare_enable(rtc->pclk);
+ if (ret) {
+ dev_err(dev, "failed to enable PCLK\n");
+ return ret;
+ }
+ }
+ rtc->extclk = devm_clk_get(dev, "EXTCLK");
+ if (IS_ERR(rtc->extclk)) {
+ dev_err(dev, "could not get EXTCLK\n");
+ } else {
+ ret = clk_prepare_enable(rtc->extclk);
+ if (ret) {
+ dev_err(dev, "failed to enable EXTCLK\n");
+ return ret;
+ }
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+ if (!res)
+ return -ENODEV;
+
+ rtc->rtc_irq = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ rtc->rtc_base = devm_ioremap(dev, res->start,
+ resource_size(res));
+ if (!rtc->rtc_base)
+ return -ENOMEM;
+
+ ret = devm_request_irq(dev, rtc->rtc_irq, ftrtc010_rtc_interrupt,
+ IRQF_SHARED, pdev->name, dev);
+ if (unlikely(ret))
+ return ret;
+
+ rtc->rtc_dev = rtc_device_register(pdev->name, dev,
+ &ftrtc010_rtc_ops, THIS_MODULE);
+ return PTR_ERR_OR_ZERO(rtc->rtc_dev);
+}
+
+static int ftrtc010_rtc_remove(struct platform_device *pdev)
+{
+ struct ftrtc010_rtc *rtc = platform_get_drvdata(pdev);
+
+ if (!IS_ERR(rtc->extclk))
+ clk_disable_unprepare(rtc->extclk);
+ if (!IS_ERR(rtc->pclk))
+ clk_disable_unprepare(rtc->pclk);
+ rtc_device_unregister(rtc->rtc_dev);
+
+ return 0;
+}
+
+static const struct of_device_id ftrtc010_rtc_dt_match[] = {
+ { .compatible = "cortina,gemini-rtc" },
+ { .compatible = "faraday,ftrtc010" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, ftrtc010_rtc_dt_match);
+
+static struct platform_driver ftrtc010_rtc_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = ftrtc010_rtc_dt_match,
+ },
+ .probe = ftrtc010_rtc_probe,
+ .remove = ftrtc010_rtc_remove,
+};
+
+module_platform_driver_probe(ftrtc010_rtc_driver, ftrtc010_rtc_probe);
+++ /dev/null
-/*
- * Gemini OnChip RTC
- *
- * Copyright (C) 2009 Janos Laube <janos.dev@gmail.com>
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Original code for older kernel 2.6.15 are from Stormlinksemi
- * first update from Janos Laube for > 2.6.29 kernels
- *
- * checkpatch fixes and usage of rtc-lib code
- * Hans Ulli Kroll <ulli.kroll@googlemail.com>
- */
-
-#include <linux/rtc.h>
-#include <linux/io.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/clk.h>
-
-#define DRV_NAME "rtc-gemini"
-
-MODULE_AUTHOR("Hans Ulli Kroll <ulli.kroll@googlemail.com>");
-MODULE_DESCRIPTION("RTC driver for Gemini SoC");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:" DRV_NAME);
-
-struct gemini_rtc {
- struct rtc_device *rtc_dev;
- void __iomem *rtc_base;
- int rtc_irq;
- struct clk *pclk;
- struct clk *extclk;
-};
-
-enum gemini_rtc_offsets {
- GEMINI_RTC_SECOND = 0x00,
- GEMINI_RTC_MINUTE = 0x04,
- GEMINI_RTC_HOUR = 0x08,
- GEMINI_RTC_DAYS = 0x0C,
- GEMINI_RTC_ALARM_SECOND = 0x10,
- GEMINI_RTC_ALARM_MINUTE = 0x14,
- GEMINI_RTC_ALARM_HOUR = 0x18,
- GEMINI_RTC_RECORD = 0x1C,
- GEMINI_RTC_CR = 0x20
-};
-
-static irqreturn_t gemini_rtc_interrupt(int irq, void *dev)
-{
- return IRQ_HANDLED;
-}
-
-/*
- * Looks like the RTC in the Gemini SoC is (totaly) broken
- * We can't read/write directly the time from RTC registers.
- * We must do some "offset" calculation to get the real time
- *
- * This FIX works pretty fine and Stormlinksemi aka Cortina-Networks does
- * the same thing, without the rtc-lib.c calls.
- */
-
-static int gemini_rtc_read_time(struct device *dev, struct rtc_time *tm)
-{
- struct gemini_rtc *rtc = dev_get_drvdata(dev);
-
- unsigned int days, hour, min, sec;
- unsigned long offset, time;
-
- sec = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
- min = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
- hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
- days = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
- offset = readl(rtc->rtc_base + GEMINI_RTC_RECORD);
-
- time = offset + days * 86400 + hour * 3600 + min * 60 + sec;
-
- rtc_time_to_tm(time, tm);
-
- return 0;
-}
-
-static int gemini_rtc_set_time(struct device *dev, struct rtc_time *tm)
-{
- struct gemini_rtc *rtc = dev_get_drvdata(dev);
- unsigned int sec, min, hour, day;
- unsigned long offset, time;
-
- if (tm->tm_year >= 2148) /* EPOCH Year + 179 */
- return -EINVAL;
-
- rtc_tm_to_time(tm, &time);
-
- sec = readl(rtc->rtc_base + GEMINI_RTC_SECOND);
- min = readl(rtc->rtc_base + GEMINI_RTC_MINUTE);
- hour = readl(rtc->rtc_base + GEMINI_RTC_HOUR);
- day = readl(rtc->rtc_base + GEMINI_RTC_DAYS);
-
- offset = time - (day * 86400 + hour * 3600 + min * 60 + sec);
-
- writel(offset, rtc->rtc_base + GEMINI_RTC_RECORD);
- writel(0x01, rtc->rtc_base + GEMINI_RTC_CR);
-
- return 0;
-}
-
-static const struct rtc_class_ops gemini_rtc_ops = {
- .read_time = gemini_rtc_read_time,
- .set_time = gemini_rtc_set_time,
-};
-
-static int gemini_rtc_probe(struct platform_device *pdev)
-{
- struct gemini_rtc *rtc;
- struct device *dev = &pdev->dev;
- struct resource *res;
- int ret;
-
- rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
- if (unlikely(!rtc))
- return -ENOMEM;
- platform_set_drvdata(pdev, rtc);
-
- rtc->pclk = devm_clk_get(dev, "PCLK");
- if (IS_ERR(rtc->pclk)) {
- dev_err(dev, "could not get PCLK\n");
- } else {
- ret = clk_prepare_enable(rtc->pclk);
- if (ret) {
- dev_err(dev, "failed to enable PCLK\n");
- return ret;
- }
- }
- rtc->extclk = devm_clk_get(dev, "EXTCLK");
- if (IS_ERR(rtc->extclk)) {
- dev_err(dev, "could not get EXTCLK\n");
- } else {
- ret = clk_prepare_enable(rtc->extclk);
- if (ret) {
- dev_err(dev, "failed to enable EXTCLK\n");
- return ret;
- }
- }
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res)
- return -ENODEV;
-
- rtc->rtc_irq = res->start;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-
- rtc->rtc_base = devm_ioremap(dev, res->start,
- resource_size(res));
- if (!rtc->rtc_base)
- return -ENOMEM;
-
- ret = devm_request_irq(dev, rtc->rtc_irq, gemini_rtc_interrupt,
- IRQF_SHARED, pdev->name, dev);
- if (unlikely(ret))
- return ret;
-
- rtc->rtc_dev = rtc_device_register(pdev->name, dev,
- &gemini_rtc_ops, THIS_MODULE);
- return PTR_ERR_OR_ZERO(rtc->rtc_dev);
-}
-
-static int gemini_rtc_remove(struct platform_device *pdev)
-{
- struct gemini_rtc *rtc = platform_get_drvdata(pdev);
-
- if (!IS_ERR(rtc->extclk))
- clk_disable_unprepare(rtc->extclk);
- if (!IS_ERR(rtc->pclk))
- clk_disable_unprepare(rtc->pclk);
- rtc_device_unregister(rtc->rtc_dev);
-
- return 0;
-}
-
-static const struct of_device_id gemini_rtc_dt_match[] = {
- { .compatible = "cortina,gemini-rtc" },
- { }
-};
-MODULE_DEVICE_TABLE(of, gemini_rtc_dt_match);
-
-static struct platform_driver gemini_rtc_driver = {
- .driver = {
- .name = DRV_NAME,
- .of_match_table = gemini_rtc_dt_match,
- },
- .probe = gemini_rtc_probe,
- .remove = gemini_rtc_remove,
-};
-
-module_platform_driver_probe(gemini_rtc_driver, gemini_rtc_probe);
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff