Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""

[thirdparty/u-boot.git] / drivers / timer / adi_sc5xx_timer.c

diff --git a/drivers/timer/adi_sc5xx_timer.c b/drivers/timer/adi_sc5xx_timer.c
deleted file mode 100644 (file)
index 11c0984..0000000
--- a/drivers/timer/adi_sc5xx_timer.c
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * (C) Copyright 2022 - Analog Devices, Inc.
- *
- * Written and/or maintained by Timesys Corporation
- *
- * Converted to driver model by Nathan Barrett-Morrison
- *
- * Author: Greg Malysa <greg.malysa@timesys.com>
- * Additional Contact: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
- *
- * dm timer implementation for ADI ADSP-SC5xx SoCs
- *
- */
-
-#include <clk.h>
-#include <dm.h>
-#include <timer.h>
-#include <asm/io.h>
-#include <dm/device_compat.h>
-#include <linux/compiler_types.h>
-
-/*
- * Timer Configuration Register Bits
- */
-#define TIMER_OUT_DIS       0x0800
-#define TIMER_PULSE_HI      0x0080
-#define TIMER_MODE_PWM_CONT 0x000c
-
-#define __BFP(m) u16 m; u16 __pad_##m
-
-struct gptimer3 {
-       __BFP(config);
-       u32 counter;
-       u32 period;
-       u32 width;
-       u32 delay;
-};
-
-struct gptimer3_group_regs {
-       __BFP(run);
-       __BFP(enable);
-       __BFP(disable);
-       __BFP(stop_cfg);
-       __BFP(stop_cfg_set);
-       __BFP(stop_cfg_clr);
-       __BFP(data_imsk);
-       __BFP(stat_imsk);
-       __BFP(tr_msk);
-       __BFP(tr_ie);
-       __BFP(data_ilat);
-       __BFP(stat_ilat);
-       __BFP(err_status);
-       __BFP(bcast_per);
-       __BFP(bcast_wid);
-       __BFP(bcast_dly);
-};
-
-#define MAX_TIM_LOAD   0xFFFFFFFF
-
-struct adi_gptimer_priv {
-       struct gptimer3_group_regs __iomem *timer_group;
-       struct gptimer3 __iomem *timer_base;
-       u32 prev;
-       u64 upper;
-};
-
-static u64 adi_gptimer_get_count(struct udevice *udev)
-{
-       struct adi_gptimer_priv *priv = dev_get_priv(udev);
-
-       u32 now = readl(&priv->timer_base->counter);
-
-       if (now < priv->prev)
-               priv->upper += (1ull << 32);
-
-       priv->prev = now;
-
-       return (priv->upper + (u64)now);
-}
-
-static const struct timer_ops adi_gptimer_ops = {
-       .get_count = adi_gptimer_get_count,
-};
-
-static int adi_gptimer_probe(struct udevice *udev)
-{
-       struct timer_dev_priv *uc_priv = dev_get_uclass_priv(udev);
-       struct adi_gptimer_priv *priv = dev_get_priv(udev);
-       struct clk clk;
-       u16 imask;
-       int ret;
-
-       priv->timer_group = dev_remap_addr_index(udev, 0);
-       priv->timer_base = dev_remap_addr_index(udev, 1);
-       priv->upper = 0;
-       priv->prev = 0;
-
-       if (!priv->timer_group || !priv->timer_base) {
-               dev_err(udev, "Missing timer_group or timer_base reg entries\n");
-               return -ENODEV;
-       }
-
-       ret = clk_get_by_index(udev, 0, &clk);
-       if (ret < 0) {
-               dev_err(udev, "Missing clock reference for timer\n");
-               return ret;
-       }
-
-       ret = clk_enable(&clk);
-       if (ret) {
-               dev_err(udev, "Failed to enable clock\n");
-               return ret;
-       }
-
-       uc_priv->clock_rate = clk_get_rate(&clk);
-
-       /* Enable timer */
-       writew(TIMER_OUT_DIS | TIMER_MODE_PWM_CONT | TIMER_PULSE_HI,
-              &priv->timer_base->config);
-       writel(MAX_TIM_LOAD, &priv->timer_base->period);
-       writel(MAX_TIM_LOAD - 1, &priv->timer_base->width);
-
-       /* We only use timer 0 in uboot */
-       imask = readw(&priv->timer_group->data_imsk);
-       imask &= ~(1 << 0);
-       writew(imask, &priv->timer_group->data_imsk);
-       writew((1 << 0), &priv->timer_group->enable);
-
-       return 0;
-}
-
-static const struct udevice_id adi_gptimer_ids[] = {
-       { .compatible = "adi,sc5xx-gptimer" },
-       { },
-};
-
-U_BOOT_DRIVER(adi_gptimer) = {
-       .name = "adi_gptimer",
-       .id = UCLASS_TIMER,
-       .of_match = adi_gptimer_ids,
-       .priv_auto = sizeof(struct adi_gptimer_priv),
-       .probe = adi_gptimer_probe,
-       .ops = &adi_gptimer_ops,
-};