reset: stm32mp25: add stm32mp25 reset driver

Implement STM32MP25 reset drivers using stm32-core-reset API.
This reset stm32-reset-core API and will be able to use DT binding
index started from 0.

This patch also moves legacy reset into stm32 directory reset.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

1 files changed, 0 insertions, 97 deletions

diff --git a/drivers/reset/stm32-reset.c b/drivers/reset/stm32-reset.c
deleted file mode 100644
index 9d4f361b251..00000000000
--- a/drivers/reset/stm32-reset.c
+++ /dev/null
@@ -1,97 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
- * Author(s): Patrice Chotard, <patrice.chotard@foss.st.com> for STMicroelectronics.
- */
-
-#define LOG_CATEGORY UCLASS_RESET
-
-#include <dm.h>
-#include <errno.h>
-#include <log.h>
-#include <malloc.h>
-#include <reset-uclass.h>
-#include <stm32_rcc.h>
-#include <asm/io.h>
-#include <dm/device_compat.h>
-#include <linux/bitops.h>
-
-/* offset of register without set/clear management */
-#define RCC_MP_GCR_OFFSET 0x10C
-
-/* reset clear offset for STM32MP RCC */
-#define RCC_CL 0x4
-
-struct stm32_reset_priv {
-	fdt_addr_t base;
-};
-
-static int stm32_reset_assert(struct reset_ctl *reset_ctl)
-{
-	struct stm32_reset_priv *priv = dev_get_priv(reset_ctl->dev);
-	int bank = (reset_ctl->id / (sizeof(u32) * BITS_PER_BYTE)) * 4;
-	int offset = reset_ctl->id % (sizeof(u32) * BITS_PER_BYTE);
-
-	dev_dbg(reset_ctl->dev, "reset id = %ld bank = %d offset = %d)\n",
-		reset_ctl->id, bank, offset);
-
-	if (dev_get_driver_data(reset_ctl->dev) == STM32MP1)
-		if (bank != RCC_MP_GCR_OFFSET)
-			/* reset assert is done in rcc set register */
-			writel(BIT(offset), priv->base + bank);
-		else
-			clrbits_le32(priv->base + bank, BIT(offset));
-	else
-		setbits_le32(priv->base + bank, BIT(offset));
-
-	return 0;
-}
-
-static int stm32_reset_deassert(struct reset_ctl *reset_ctl)
-{
-	struct stm32_reset_priv *priv = dev_get_priv(reset_ctl->dev);
-	int bank = (reset_ctl->id / (sizeof(u32) * BITS_PER_BYTE)) * 4;
-	int offset = reset_ctl->id % (sizeof(u32) * BITS_PER_BYTE);
-
-	dev_dbg(reset_ctl->dev, "reset id = %ld bank = %d offset = %d)\n",
-		reset_ctl->id, bank, offset);
-
-	if (dev_get_driver_data(reset_ctl->dev) == STM32MP1)
-		if (bank != RCC_MP_GCR_OFFSET)
-			/* reset deassert is done in rcc clr register */
-			writel(BIT(offset), priv->base + bank + RCC_CL);
-		else
-			setbits_le32(priv->base + bank, BIT(offset));
-	else
-		clrbits_le32(priv->base + bank, BIT(offset));
-
-	return 0;
-}
-
-static const struct reset_ops stm32_reset_ops = {
-	.rst_assert	= stm32_reset_assert,
-	.rst_deassert	= stm32_reset_deassert,
-};
-
-static int stm32_reset_probe(struct udevice *dev)
-{
-	struct stm32_reset_priv *priv = dev_get_priv(dev);
-
-	priv->base = dev_read_addr(dev);
-	if (priv->base == FDT_ADDR_T_NONE) {
-		/* for MFD, get address of parent */
-		priv->base = dev_read_addr(dev->parent);
-		if (priv->base == FDT_ADDR_T_NONE)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-U_BOOT_DRIVER(stm32_rcc_reset) = {
-	.name			= "stm32_rcc_reset",
-	.id			= UCLASS_RESET,
-	.probe			= stm32_reset_probe,
-	.priv_auto	= sizeof(struct stm32_reset_priv),
-	.ops			= &stm32_reset_ops,
-};