CPU support for TX49xx is getting removed, so remove rtc driver for it.
Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de --- drivers/rtc/Kconfig | 7 - drivers/rtc/Makefile | 1 - drivers/rtc/rtc-tx4939.c | 303 --------------------------------------- 3 files changed, 311 deletions(-) delete mode 100644 drivers/rtc/rtc-tx4939.c
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 6123f9f4fbc9..3b5510c9bffa 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -1587,13 +1587,6 @@ config RTC_DRV_STARFIRE If you say Y here you will get support for the RTC found on Starfire systems.
-config RTC_DRV_TX4939 - tristate "TX4939 SoC" - depends on SOC_TX4939 || COMPILE_TEST - help - Driver for the internal RTC (Realtime Clock) module found on - Toshiba TX4939 SoC. - config RTC_DRV_MV tristate "Marvell SoC RTC" depends on ARCH_DOVE || ARCH_MVEBU || COMPILE_TEST diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index bb8f319b09fb..a020adde4bbd 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -171,7 +171,6 @@ obj-$(CONFIG_RTC_DRV_TPS6586X) += rtc-tps6586x.o obj-$(CONFIG_RTC_DRV_TPS65910) += rtc-tps65910.o obj-$(CONFIG_RTC_DRV_TPS80031) += rtc-tps80031.o obj-$(CONFIG_RTC_DRV_TWL4030) += rtc-twl.o -obj-$(CONFIG_RTC_DRV_TX4939) += rtc-tx4939.o obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o obj-$(CONFIG_RTC_DRV_VRTC) += rtc-mrst.o diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c deleted file mode 100644 index c3309db5448d..000000000000 --- a/drivers/rtc/rtc-tx4939.c +++ /dev/null @@ -1,303 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * TX4939 internal RTC driver - * Based on RBTX49xx patch from CELF patch archive. - * - * (C) Copyright TOSHIBA CORPORATION 2005-2007 - */ -#include <linux/rtc.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/io.h> -#include <linux/gfp.h> - -#define TX4939_RTCCTL_ALME 0x00000080 -#define TX4939_RTCCTL_ALMD 0x00000040 -#define TX4939_RTCCTL_BUSY 0x00000020 - -#define TX4939_RTCCTL_COMMAND 0x00000007 -#define TX4939_RTCCTL_COMMAND_NOP 0x00000000 -#define TX4939_RTCCTL_COMMAND_GETTIME 0x00000001 -#define TX4939_RTCCTL_COMMAND_SETTIME 0x00000002 -#define TX4939_RTCCTL_COMMAND_GETALARM 0x00000003 -#define TX4939_RTCCTL_COMMAND_SETALARM 0x00000004 - -#define TX4939_RTCTBC_PM 0x00000080 -#define TX4939_RTCTBC_COMP 0x0000007f - -#define TX4939_RTC_REG_RAMSIZE 0x00000100 -#define TX4939_RTC_REG_RWBSIZE 0x00000006 - -struct tx4939_rtc_reg { - __u32 ctl; - __u32 adr; - __u32 dat; - __u32 tbc; -}; - -struct tx4939rtc_plat_data { - struct rtc_device *rtc; - struct tx4939_rtc_reg __iomem *rtcreg; - spinlock_t lock; -}; - -static int tx4939_rtc_cmd(struct tx4939_rtc_reg __iomem *rtcreg, int cmd) -{ - int i = 0; - - __raw_writel(cmd, &rtcreg->ctl); - /* This might take 30us (next 32.768KHz clock) */ - while (__raw_readl(&rtcreg->ctl) & TX4939_RTCCTL_BUSY) { - /* timeout on approx. 100us (@ GBUS200MHz) */ - if (i++ > 200 * 100) - return -EBUSY; - cpu_relax(); - } - return 0; -} - -static int tx4939_rtc_set_time(struct device *dev, struct rtc_time *tm) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev); - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - unsigned long secs = rtc_tm_to_time64(tm); - int i, ret; - unsigned char buf[6]; - - buf[0] = 0; - buf[1] = 0; - buf[2] = secs; - buf[3] = secs >> 8; - buf[4] = secs >> 16; - buf[5] = secs >> 24; - spin_lock_irq(&pdata->lock); - __raw_writel(0, &rtcreg->adr); - for (i = 0; i < 6; i++) - __raw_writel(buf[i], &rtcreg->dat); - ret = tx4939_rtc_cmd(rtcreg, - TX4939_RTCCTL_COMMAND_SETTIME | - (__raw_readl(&rtcreg->ctl) & TX4939_RTCCTL_ALME)); - spin_unlock_irq(&pdata->lock); - return ret; -} - -static int tx4939_rtc_read_time(struct device *dev, struct rtc_time *tm) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev); - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - int i, ret; - unsigned long sec; - unsigned char buf[6]; - - spin_lock_irq(&pdata->lock); - ret = tx4939_rtc_cmd(rtcreg, - TX4939_RTCCTL_COMMAND_GETTIME | - (__raw_readl(&rtcreg->ctl) & TX4939_RTCCTL_ALME)); - if (ret) { - spin_unlock_irq(&pdata->lock); - return ret; - } - __raw_writel(2, &rtcreg->adr); - for (i = 2; i < 6; i++) - buf[i] = __raw_readl(&rtcreg->dat); - spin_unlock_irq(&pdata->lock); - sec = ((unsigned long)buf[5] << 24) | (buf[4] << 16) | - (buf[3] << 8) | buf[2]; - rtc_time64_to_tm(sec, tm); - return 0; -} - -static int tx4939_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev); - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - int i, ret; - unsigned long sec; - unsigned char buf[6]; - - sec = rtc_tm_to_time64(&alrm->time); - buf[0] = 0; - buf[1] = 0; - buf[2] = sec; - buf[3] = sec >> 8; - buf[4] = sec >> 16; - buf[5] = sec >> 24; - spin_lock_irq(&pdata->lock); - __raw_writel(0, &rtcreg->adr); - for (i = 0; i < 6; i++) - __raw_writel(buf[i], &rtcreg->dat); - ret = tx4939_rtc_cmd(rtcreg, TX4939_RTCCTL_COMMAND_SETALARM | - (alrm->enabled ? TX4939_RTCCTL_ALME : 0)); - spin_unlock_irq(&pdata->lock); - return ret; -} - -static int tx4939_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev); - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - int i, ret; - unsigned long sec; - unsigned char buf[6]; - u32 ctl; - - spin_lock_irq(&pdata->lock); - ret = tx4939_rtc_cmd(rtcreg, - TX4939_RTCCTL_COMMAND_GETALARM | - (__raw_readl(&rtcreg->ctl) & TX4939_RTCCTL_ALME)); - if (ret) { - spin_unlock_irq(&pdata->lock); - return ret; - } - __raw_writel(2, &rtcreg->adr); - for (i = 2; i < 6; i++) - buf[i] = __raw_readl(&rtcreg->dat); - ctl = __raw_readl(&rtcreg->ctl); - alrm->enabled = (ctl & TX4939_RTCCTL_ALME) ? 1 : 0; - alrm->pending = (ctl & TX4939_RTCCTL_ALMD) ? 1 : 0; - spin_unlock_irq(&pdata->lock); - sec = ((unsigned long)buf[5] << 24) | (buf[4] << 16) | - (buf[3] << 8) | buf[2]; - rtc_time64_to_tm(sec, &alrm->time); - return rtc_valid_tm(&alrm->time); -} - -static int tx4939_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev); - - spin_lock_irq(&pdata->lock); - tx4939_rtc_cmd(pdata->rtcreg, - TX4939_RTCCTL_COMMAND_NOP | - (enabled ? TX4939_RTCCTL_ALME : 0)); - spin_unlock_irq(&pdata->lock); - return 0; -} - -static irqreturn_t tx4939_rtc_interrupt(int irq, void *dev_id) -{ - struct tx4939rtc_plat_data *pdata = dev_get_drvdata(dev_id); - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - unsigned long events = RTC_IRQF; - - spin_lock(&pdata->lock); - if (__raw_readl(&rtcreg->ctl) & TX4939_RTCCTL_ALMD) { - events |= RTC_AF; - tx4939_rtc_cmd(rtcreg, TX4939_RTCCTL_COMMAND_NOP); - } - spin_unlock(&pdata->lock); - rtc_update_irq(pdata->rtc, 1, events); - - return IRQ_HANDLED; -} - -static const struct rtc_class_ops tx4939_rtc_ops = { - .read_time = tx4939_rtc_read_time, - .read_alarm = tx4939_rtc_read_alarm, - .set_alarm = tx4939_rtc_set_alarm, - .set_time = tx4939_rtc_set_time, - .alarm_irq_enable = tx4939_rtc_alarm_irq_enable, -}; - -static int tx4939_nvram_read(void *priv, unsigned int pos, void *val, - size_t bytes) -{ - struct tx4939rtc_plat_data *pdata = priv; - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - u8 *buf = val; - - spin_lock_irq(&pdata->lock); - for (; bytes; bytes--) { - __raw_writel(pos++, &rtcreg->adr); - *buf++ = __raw_readl(&rtcreg->dat); - } - spin_unlock_irq(&pdata->lock); - return 0; -} - -static int tx4939_nvram_write(void *priv, unsigned int pos, void *val, - size_t bytes) -{ - struct tx4939rtc_plat_data *pdata = priv; - struct tx4939_rtc_reg __iomem *rtcreg = pdata->rtcreg; - u8 *buf = val; - - spin_lock_irq(&pdata->lock); - for (; bytes; bytes--) { - __raw_writel(pos++, &rtcreg->adr); - __raw_writel(*buf++, &rtcreg->dat); - } - spin_unlock_irq(&pdata->lock); - return 0; -} - -static int __init tx4939_rtc_probe(struct platform_device *pdev) -{ - struct rtc_device *rtc; - struct tx4939rtc_plat_data *pdata; - int irq, ret; - struct nvmem_config nvmem_cfg = { - .name = "tx4939_nvram", - .size = TX4939_RTC_REG_RAMSIZE, - .reg_read = tx4939_nvram_read, - .reg_write = tx4939_nvram_write, - }; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENODEV; - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); - if (!pdata) - return -ENOMEM; - platform_set_drvdata(pdev, pdata); - - pdata->rtcreg = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(pdata->rtcreg)) - return PTR_ERR(pdata->rtcreg); - - spin_lock_init(&pdata->lock); - tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP); - if (devm_request_irq(&pdev->dev, irq, tx4939_rtc_interrupt, - 0, pdev->name, &pdev->dev) < 0) - return -EBUSY; - rtc = devm_rtc_allocate_device(&pdev->dev); - if (IS_ERR(rtc)) - return PTR_ERR(rtc); - - rtc->ops = &tx4939_rtc_ops; - rtc->range_max = U32_MAX; - - pdata->rtc = rtc; - - nvmem_cfg.priv = pdata; - ret = devm_rtc_nvmem_register(rtc, &nvmem_cfg); - if (ret) - return ret; - - return devm_rtc_register_device(rtc); -} - -static int __exit tx4939_rtc_remove(struct platform_device *pdev) -{ - struct tx4939rtc_plat_data *pdata = platform_get_drvdata(pdev); - - spin_lock_irq(&pdata->lock); - tx4939_rtc_cmd(pdata->rtcreg, TX4939_RTCCTL_COMMAND_NOP); - spin_unlock_irq(&pdata->lock); - return 0; -} - -static struct platform_driver tx4939_rtc_driver = { - .remove = __exit_p(tx4939_rtc_remove), - .driver = { - .name = "tx4939rtc", - }, -}; - -module_platform_driver_probe(tx4939_rtc_driver, tx4939_rtc_probe); - -MODULE_AUTHOR("Atsushi Nemoto anemo@mba.ocn.ne.jp"); -MODULE_DESCRIPTION("TX4939 internal RTC driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tx4939rtc");