From 0a9e8a5463dedd58bc08a911c8232c222281b1ad Mon Sep 17 00:00:00 2001
From: Filip Kokosinski <fkokosinski@antmicro.com>
Date: Tue, 22 Mar 2022 09:39:06 +0100
Subject: [PATCH] drivers: pinmux: remove SiFive pinmux driver

After transitioning to the new pinctrl driver, it is now obsolete.

Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
---
 drivers/pinmux/CMakeLists.txt  |   1 -
 drivers/pinmux/Kconfig         |   2 -
 drivers/pinmux/Kconfig.sifive  |  10 ----
 drivers/pinmux/pinmux_sifive.c | 103 ---------------------------------
 4 files changed, 116 deletions(-)
 delete mode 100644 drivers/pinmux/Kconfig.sifive
 delete mode 100644 drivers/pinmux/pinmux_sifive.c

diff --git a/drivers/pinmux/CMakeLists.txt b/drivers/pinmux/CMakeLists.txt
index 55fd58d73cb0e4..97212c1a14e423 100644
--- a/drivers/pinmux/CMakeLists.txt
+++ b/drivers/pinmux/CMakeLists.txt
@@ -11,6 +11,5 @@ zephyr_sources_ifdef(CONFIG_PINMUX_MCUX            pinmux_mcux.c)
 zephyr_sources_ifdef(CONFIG_PINMUX_MCUX_LPC        pinmux_mcux_lpc.c)
 zephyr_sources_ifdef(CONFIG_PINMUX_RV32M1          pinmux_rv32m1.c)
 zephyr_sources_ifdef(CONFIG_PINMUX_SAM0            pinmux_sam0.c)
-zephyr_sources_ifdef(CONFIG_PINMUX_SIFIVE          pinmux_sifive.c)
 zephyr_sources_ifdef(CONFIG_PINMUX_STM32           pinmux_stm32.c)
 zephyr_sources_ifdef(CONFIG_PINMUX_XEC             pinmux_mchp_xec.c)
diff --git a/drivers/pinmux/Kconfig b/drivers/pinmux/Kconfig
index 9e28ea592125e5..9ceebade1e7bbc 100644
--- a/drivers/pinmux/Kconfig
+++ b/drivers/pinmux/Kconfig
@@ -44,8 +44,6 @@ source "drivers/pinmux/Kconfig.mcux_lpc"
 
 source "drivers/pinmux/Kconfig.rv32m1"
 
-source "drivers/pinmux/Kconfig.sifive"
-
 source "drivers/pinmux/Kconfig.sam0"
 
 source "drivers/pinmux/Kconfig.stm32"
diff --git a/drivers/pinmux/Kconfig.sifive b/drivers/pinmux/Kconfig.sifive
deleted file mode 100644
index 20786be2ce0bc7..00000000000000
--- a/drivers/pinmux/Kconfig.sifive
+++ /dev/null
@@ -1,10 +0,0 @@
-# PINMUX configuration options for SiFive Freedom SOC
-
-# Copyright (c) 2017 Jean-Paul Etienne <fractalclone@gmail.com>
-# SPDX-License-Identifier: Apache-2.0
-
-config PINMUX_SIFIVE
-	bool "SiFive Freedom SOC pinmux driver"
-	depends on SOC_SERIES_RISCV_SIFIVE_FREEDOM
-	help
-	  Enable driver for the SiFive Freedom SOC pinmux driver
diff --git a/drivers/pinmux/pinmux_sifive.c b/drivers/pinmux/pinmux_sifive.c
deleted file mode 100644
index 01201488ebb38c..00000000000000
--- a/drivers/pinmux/pinmux_sifive.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright (c) 2017 Jean-Paul Etienne <fractalclone@gmail.com>
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#define DT_DRV_COMPAT sifive_iof
-
-/**
- * @brief PINMUX driver for the SiFive Freedom Processor
- */
-
-#include <errno.h>
-#include <device.h>
-#include <drivers/pinmux.h>
-#include <soc.h>
-
-struct pinmux_sifive_config {
-	uintptr_t base;
-};
-
-struct pinmux_sifive_regs_t {
-	uint32_t iof_en;
-	uint32_t iof_sel;
-};
-
-#define DEV_PINMUX(dev)						\
-	((struct pinmux_sifive_regs_t *)			\
-	 ((const struct pinmux_sifive_config * const)(dev->config))->base)
-
-static int pinmux_sifive_set(const struct device *dev, uint32_t pin,
-			     uint32_t func)
-{
-	volatile struct pinmux_sifive_regs_t *pinmux = DEV_PINMUX(dev);
-
-	if (func > SIFIVE_PINMUX_IOF1 ||
-	    pin >= SIFIVE_PINMUX_PINS)
-		return -EINVAL;
-
-	if (func == SIFIVE_PINMUX_IOF1)
-		pinmux->iof_sel |= (SIFIVE_PINMUX_IOF1 << pin);
-	else
-		pinmux->iof_sel &= ~(SIFIVE_PINMUX_IOF1 << pin);
-
-	/* Enable IO function for this pin */
-	pinmux->iof_en |= (1 << pin);
-
-	return 0;
-}
-
-static int pinmux_sifive_get(const struct device *dev, uint32_t pin,
-			     uint32_t *func)
-{
-	volatile struct pinmux_sifive_regs_t *pinmux = DEV_PINMUX(dev);
-
-	if (pin >= SIFIVE_PINMUX_PINS ||
-	    func == NULL)
-		return -EINVAL;
-
-	*func = (pinmux->iof_sel & (SIFIVE_PINMUX_IOF1 << pin)) ?
-		SIFIVE_PINMUX_IOF1 : SIFIVE_PINMUX_IOF0;
-
-	return 0;
-}
-
-static int pinmux_sifive_pullup(const struct device *dev, uint32_t pin,
-				uint8_t func)
-{
-	return -ENOTSUP;
-}
-
-static int pinmux_sifive_input(const struct device *dev, uint32_t pin,
-			       uint8_t func)
-{
-	return -ENOTSUP;
-}
-
-static int pinmux_sifive_init(const struct device *dev)
-{
-	volatile struct pinmux_sifive_regs_t *pinmux = DEV_PINMUX(dev);
-
-	/* Ensure that all pins are disabled initially */
-	pinmux->iof_en = 0x0;
-
-	return 0;
-}
-
-static const struct pinmux_driver_api pinmux_sifive_driver_api = {
-	.set = pinmux_sifive_set,
-	.get = pinmux_sifive_get,
-	.pullup = pinmux_sifive_pullup,
-	.input = pinmux_sifive_input,
-};
-
-static const struct pinmux_sifive_config pinmux_sifive_0_config = {
-	.base = DT_INST_REG_ADDR(0),
-};
-
-DEVICE_DT_INST_DEFINE(0,
-		    &pinmux_sifive_init, NULL, NULL,
-		    &pinmux_sifive_0_config,
-		    PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT,
-		    &pinmux_sifive_driver_api);