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openwrt/target/linux/layerscape/patches-4.14/823-pm-support-layerscape.patch
Biwen Li 5159d71983 layerscape: update patches-4.14 to LSDK 19.03 
All patches of LSDK 19.03 were ported to Openwrt kernel.
We still used an all-in-one patch for each IP/feature for
OpenWrt.

Below are the changes this patch introduced.
- Updated original IP/feature patches to LSDK 19.03.
- Added new IP/feature patches for eTSEC/PTP/TMU.
- Squashed scattered patches into IP/feature patches.
- Updated config-4.14 correspondingly.
- Refreshed all patches.

More info about LSDK and the kernel:
- https://lsdk.github.io/components.html
- https://source.codeaurora.org/external/qoriq/qoriq-components/linux

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2019-06-06 15:40:09 +02:00

632 lines
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From 62ac0c4fda3b40a8994f2abfdc52784ced80c83b Mon Sep 17 00:00:00 2001
From: Biwen Li <biwen.li@nxp.com>
Date: Wed, 17 Apr 2019 18:58:51 +0800
Subject: [PATCH] pm: support layerscape
This is an integrated patch of pm for layerscape
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Chenhui Zhao <chenhui.zhao@freescale.com>
Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
Signed-off-by: Zhao Chenhui <chenhui.zhao@nxp.com>
---
drivers/firmware/psci.c | 16 ++-
drivers/soc/fsl/rcpm.c | 156 ++++++++++++++++++++
drivers/soc/fsl/sleep_fsm.c | 279 ++++++++++++++++++++++++++++++++++++
drivers/soc/fsl/sleep_fsm.h | 130 +++++++++++++++++
4 files changed, 579 insertions(+), 2 deletions(-)
create mode 100644 drivers/soc/fsl/rcpm.c
create mode 100644 drivers/soc/fsl/sleep_fsm.c
create mode 100644 drivers/soc/fsl/sleep_fsm.h
--- a/drivers/firmware/psci.c
+++ b/drivers/firmware/psci.c
@@ -437,8 +437,18 @@ CPUIDLE_METHOD_OF_DECLARE(psci, "psci",
static int psci_system_suspend(unsigned long unused)
{
- return invoke_psci_fn(PSCI_FN_NATIVE(1_0, SYSTEM_SUSPEND),
- __pa_symbol(cpu_resume), 0, 0);
+ u32 state;
+ u32 ver = psci_get_version();
+
+ if (PSCI_VERSION_MAJOR(ver) >= 1) {
+ return invoke_psci_fn(PSCI_FN_NATIVE(1_0, SYSTEM_SUSPEND),
+ virt_to_phys(cpu_resume), 0, 0);
+ } else {
+ state = ( 2 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) |
+ (1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT);
+
+ return psci_cpu_suspend(state, virt_to_phys(cpu_resume));
+ }
}
static int psci_system_suspend_enter(suspend_state_t state)
@@ -562,6 +572,8 @@ static void __init psci_0_2_set_function
arm_pm_restart = psci_sys_reset;
pm_power_off = psci_sys_poweroff;
+
+ suspend_set_ops(&psci_suspend_ops);
}
/*
--- /dev/null
+++ b/drivers/soc/fsl/rcpm.c
@@ -0,0 +1,156 @@
+/*
+ * Run Control and Power Management (RCPM) driver
+ *
+ * Copyright 2016 NXP
+ *
+ * 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.
+ *
+ */
+#define pr_fmt(fmt) "RCPM: %s: " fmt, __func__
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/suspend.h>
+
+/* RCPM register offset */
+#define RCPM_IPPDEXPCR0 0x140
+
+#define RCPM_WAKEUP_CELL_SIZE 2
+
+struct rcpm_config {
+ int ipp_num;
+ int ippdexpcr_offset;
+ u32 ippdexpcr[2];
+ void *rcpm_reg_base;
+};
+
+static struct rcpm_config *rcpm;
+
+static inline void rcpm_reg_write(u32 offset, u32 value)
+{
+ iowrite32be(value, rcpm->rcpm_reg_base + offset);
+}
+
+static inline u32 rcpm_reg_read(u32 offset)
+{
+ return ioread32be(rcpm->rcpm_reg_base + offset);
+}
+
+static void rcpm_wakeup_fixup(struct device *dev, void *data)
+{
+ struct device_node *node = dev ? dev->of_node : NULL;
+ u32 value[RCPM_WAKEUP_CELL_SIZE];
+ int ret, i;
+
+ if (!dev || !node || !device_may_wakeup(dev))
+ return;
+
+ /*
+ * Get the values in the "rcpm-wakeup" property.
+ * Three values are:
+ * The first is a pointer to the RCPM node.
+ * The second is the value of the ippdexpcr0 register.
+ * The third is the value of the ippdexpcr1 register.
+ */
+ ret = of_property_read_u32_array(node, "fsl,rcpm-wakeup",
+ value, RCPM_WAKEUP_CELL_SIZE);
+ if (ret)
+ return;
+
+ pr_debug("wakeup source: the device %s\n", node->full_name);
+
+ for (i = 0; i < rcpm->ipp_num; i++)
+ rcpm->ippdexpcr[i] |= value[i + 1];
+}
+
+static int rcpm_suspend_prepare(void)
+{
+ int i;
+ u32 val;
+
+ BUG_ON(!rcpm);
+
+ for (i = 0; i < rcpm->ipp_num; i++)
+ rcpm->ippdexpcr[i] = 0;
+
+ dpm_for_each_dev(NULL, rcpm_wakeup_fixup);
+
+ for (i = 0; i < rcpm->ipp_num; i++) {
+ if (rcpm->ippdexpcr[i]) {
+ val = rcpm_reg_read(rcpm->ippdexpcr_offset + 4 * i);
+ rcpm_reg_write(rcpm->ippdexpcr_offset + 4 * i,
+ val | rcpm->ippdexpcr[i]);
+ pr_debug("ippdexpcr%d = 0x%x\n", i, rcpm->ippdexpcr[i]);
+ }
+ }
+
+ return 0;
+}
+
+static int rcpm_suspend_notifier_call(struct notifier_block *bl,
+ unsigned long state,
+ void *unused)
+{
+ switch (state) {
+ case PM_SUSPEND_PREPARE:
+ rcpm_suspend_prepare();
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct rcpm_config rcpm_default_config = {
+ .ipp_num = 1,
+ .ippdexpcr_offset = RCPM_IPPDEXPCR0,
+};
+
+static const struct of_device_id rcpm_matches[] = {
+ {
+ .compatible = "fsl,qoriq-rcpm-2.1",
+ .data = &rcpm_default_config,
+ },
+ {}
+};
+
+static struct notifier_block rcpm_suspend_notifier = {
+ .notifier_call = rcpm_suspend_notifier_call,
+};
+
+static int __init layerscape_rcpm_init(void)
+{
+ const struct of_device_id *match;
+ struct device_node *np;
+
+ np = of_find_matching_node_and_match(NULL, rcpm_matches, &match);
+ if (!np)
+ return -EINVAL;
+
+ if (match->data)
+ rcpm = (struct rcpm_config *)match->data;
+ else
+ return -EINVAL;
+
+ rcpm->rcpm_reg_base = of_iomap(np, 0);
+ of_node_put(np);
+ if (!rcpm->rcpm_reg_base)
+ return -ENOMEM;
+
+ register_pm_notifier(&rcpm_suspend_notifier);
+
+ pr_info("The RCPM driver initialized.\n");
+
+ return 0;
+}
+
+subsys_initcall(layerscape_rcpm_init);
--- /dev/null
+++ b/drivers/soc/fsl/sleep_fsm.c
@@ -0,0 +1,279 @@
+/*
+ * deep sleep FSM (finite-state machine) configuration
+ *
+ * Copyright 2018 NXP
+ *
+ * Author: Hongbo Zhang <hongbo.zhang@freescale.com>
+ * Chenhui Zhao <chenhui.zhao@freescale.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/types.h>
+
+#include "sleep_fsm.h"
+/*
+ * These values are from chip's reference manual. For example,
+ * the values for T1040 can be found in "8.4.3.8 Programming
+ * supporting deep sleep mode" of Chapter 8 "Run Control and
+ * Power Management (RCPM)".
+ * The default value can be applied to T104x, LS1021.
+ */
+struct fsm_reg_vals epu_default_val[] = {
+ /* EPGCR (Event Processor Global Control Register) */
+ {EPGCR, 0},
+ /* EPECR (Event Processor Event Control Registers) */
+ {EPECR0 + EPECR_STRIDE * 0, 0},
+ {EPECR0 + EPECR_STRIDE * 1, 0},
+ {EPECR0 + EPECR_STRIDE * 2, 0xF0004004},
+ {EPECR0 + EPECR_STRIDE * 3, 0x80000084},
+ {EPECR0 + EPECR_STRIDE * 4, 0x20000084},
+ {EPECR0 + EPECR_STRIDE * 5, 0x08000004},
+ {EPECR0 + EPECR_STRIDE * 6, 0x80000084},
+ {EPECR0 + EPECR_STRIDE * 7, 0x80000084},
+ {EPECR0 + EPECR_STRIDE * 8, 0x60000084},
+ {EPECR0 + EPECR_STRIDE * 9, 0x08000084},
+ {EPECR0 + EPECR_STRIDE * 10, 0x42000084},
+ {EPECR0 + EPECR_STRIDE * 11, 0x90000084},
+ {EPECR0 + EPECR_STRIDE * 12, 0x80000084},
+ {EPECR0 + EPECR_STRIDE * 13, 0x08000084},
+ {EPECR0 + EPECR_STRIDE * 14, 0x02000084},
+ {EPECR0 + EPECR_STRIDE * 15, 0x00000004},
+ /*
+ * EPEVTCR (Event Processor EVT Pin Control Registers)
+ * SCU8 triger EVT2, and SCU11 triger EVT9
+ */
+ {EPEVTCR0 + EPEVTCR_STRIDE * 0, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 1, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 2, 0x80000001},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 3, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 4, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 5, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 6, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 7, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 8, 0},
+ {EPEVTCR0 + EPEVTCR_STRIDE * 9, 0xB0000001},
+ /* EPCMPR (Event Processor Counter Compare Registers) */
+ {EPCMPR0 + EPCMPR_STRIDE * 0, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 1, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 2, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 3, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 4, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 5, 0x00000020},
+ {EPCMPR0 + EPCMPR_STRIDE * 6, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 7, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 8, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 9, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 10, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 11, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 12, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 13, 0},
+ {EPCMPR0 + EPCMPR_STRIDE * 14, 0x000000FF},
+ {EPCMPR0 + EPCMPR_STRIDE * 15, 0x000000FF},
+ /* EPCCR (Event Processor Counter Control Registers) */
+ {EPCCR0 + EPCCR_STRIDE * 0, 0},
+ {EPCCR0 + EPCCR_STRIDE * 1, 0},
+ {EPCCR0 + EPCCR_STRIDE * 2, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 3, 0},
+ {EPCCR0 + EPCCR_STRIDE * 4, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 5, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 6, 0},
+ {EPCCR0 + EPCCR_STRIDE * 7, 0},
+ {EPCCR0 + EPCCR_STRIDE * 8, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 9, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 10, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 11, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 12, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 13, 0},
+ {EPCCR0 + EPCCR_STRIDE * 14, 0x92840000},
+ {EPCCR0 + EPCCR_STRIDE * 15, 0x92840000},
+ /* EPSMCR (Event Processor SCU Mux Control Registers) */
+ {EPSMCR0 + EPSMCR_STRIDE * 0, 0},
+ {EPSMCR0 + EPSMCR_STRIDE * 1, 0},
+ {EPSMCR0 + EPSMCR_STRIDE * 2, 0x6C700000},
+ {EPSMCR0 + EPSMCR_STRIDE * 3, 0x2F000000},
+ {EPSMCR0 + EPSMCR_STRIDE * 4, 0x002F0000},
+ {EPSMCR0 + EPSMCR_STRIDE * 5, 0x00002E00},
+ {EPSMCR0 + EPSMCR_STRIDE * 6, 0x7C000000},
+ {EPSMCR0 + EPSMCR_STRIDE * 7, 0x30000000},
+ {EPSMCR0 + EPSMCR_STRIDE * 8, 0x64300000},
+ {EPSMCR0 + EPSMCR_STRIDE * 9, 0x00003000},
+ {EPSMCR0 + EPSMCR_STRIDE * 10, 0x65000030},
+ {EPSMCR0 + EPSMCR_STRIDE * 11, 0x31740000},
+ {EPSMCR0 + EPSMCR_STRIDE * 12, 0x7F000000},
+ {EPSMCR0 + EPSMCR_STRIDE * 13, 0x00003100},
+ {EPSMCR0 + EPSMCR_STRIDE * 14, 0x00000031},
+ {EPSMCR0 + EPSMCR_STRIDE * 15, 0x76000000},
+ /* EPACR (Event Processor Action Control Registers) */
+ {EPACR0 + EPACR_STRIDE * 0, 0},
+ {EPACR0 + EPACR_STRIDE * 1, 0},
+ {EPACR0 + EPACR_STRIDE * 2, 0},
+ {EPACR0 + EPACR_STRIDE * 3, 0x00000080},
+ {EPACR0 + EPACR_STRIDE * 4, 0},
+ {EPACR0 + EPACR_STRIDE * 5, 0x00000040},
+ {EPACR0 + EPACR_STRIDE * 6, 0},
+ {EPACR0 + EPACR_STRIDE * 7, 0},
+ {EPACR0 + EPACR_STRIDE * 8, 0},
+ {EPACR0 + EPACR_STRIDE * 9, 0x0000001C},
+ {EPACR0 + EPACR_STRIDE * 10, 0x00000020},
+ {EPACR0 + EPACR_STRIDE * 11, 0},
+ {EPACR0 + EPACR_STRIDE * 12, 0x00000003},
+ {EPACR0 + EPACR_STRIDE * 13, 0x06000000},
+ {EPACR0 + EPACR_STRIDE * 14, 0x04000000},
+ {EPACR0 + EPACR_STRIDE * 15, 0x02000000},
+ /* EPIMCR (Event Processor Input Mux Control Registers) */
+ {EPIMCR0 + EPIMCR_STRIDE * 0, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 1, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 2, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 3, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 4, 0x44000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 5, 0x40000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 6, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 7, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 8, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 9, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 10, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 11, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 12, 0x44000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 13, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 14, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 15, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 16, 0x6A000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 17, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 18, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 19, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 20, 0x48000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 21, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 22, 0x6C000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 23, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 24, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 25, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 26, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 27, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 28, 0x76000000},
+ {EPIMCR0 + EPIMCR_STRIDE * 29, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 30, 0},
+ {EPIMCR0 + EPIMCR_STRIDE * 31, 0x76000000},
+ /* EPXTRIGCR (Event Processor Crosstrigger Control Register) */
+ {EPXTRIGCR, 0x0000FFDF},
+ /* end */
+ {FSM_END_FLAG, 0},
+};
+
+struct fsm_reg_vals npc_default_val[] = {
+ /* NPC triggered Memory-Mapped Access Registers */
+ {NCR, 0x80000000},
+ {MCCR1, 0},
+ {MCSR1, 0},
+ {MMAR1LO, 0},
+ {MMAR1HI, 0},
+ {MMDR1, 0},
+ {MCSR2, 0},
+ {MMAR2LO, 0},
+ {MMAR2HI, 0},
+ {MMDR2, 0},
+ {MCSR3, 0x80000000},
+ {MMAR3LO, 0x000E2130},
+ {MMAR3HI, 0x00030000},
+ {MMDR3, 0x00020000},
+ /* end */
+ {FSM_END_FLAG, 0},
+};
+
+/**
+ * fsl_fsm_setup - Configure EPU's FSM registers
+ * @base: the base address of registers
+ * @val: Pointer to address-value pairs for FSM registers
+ */
+void fsl_fsm_setup(void __iomem *base, struct fsm_reg_vals *val)
+{
+ struct fsm_reg_vals *data = val;
+
+ WARN_ON(!base || !data);
+ while (data->offset != FSM_END_FLAG) {
+ iowrite32be(data->value, base + data->offset);
+ data++;
+ }
+}
+
+void fsl_epu_setup_default(void __iomem *epu_base)
+{
+ fsl_fsm_setup(epu_base, epu_default_val);
+}
+
+void fsl_npc_setup_default(void __iomem *npc_base)
+{
+ fsl_fsm_setup(npc_base, npc_default_val);
+}
+
+void fsl_epu_clean_default(void __iomem *epu_base)
+{
+ u32 offset;
+
+ /* follow the exact sequence to clear the registers */
+ /* Clear EPACRn */
+ for (offset = EPACR0; offset <= EPACR15; offset += EPACR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPEVTCRn */
+ for (offset = EPEVTCR0; offset <= EPEVTCR9; offset += EPEVTCR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPGCR */
+ iowrite32be(0, epu_base + EPGCR);
+
+ /* Clear EPSMCRn */
+ for (offset = EPSMCR0; offset <= EPSMCR15; offset += EPSMCR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPCCRn */
+ for (offset = EPCCR0; offset <= EPCCR31; offset += EPCCR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPCMPRn */
+ for (offset = EPCMPR0; offset <= EPCMPR31; offset += EPCMPR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPCTRn */
+ for (offset = EPCTR0; offset <= EPCTR31; offset += EPCTR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPIMCRn */
+ for (offset = EPIMCR0; offset <= EPIMCR31; offset += EPIMCR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+
+ /* Clear EPXTRIGCRn */
+ iowrite32be(0, epu_base + EPXTRIGCR);
+
+ /* Clear EPECRn */
+ for (offset = EPECR0; offset <= EPECR15; offset += EPECR_STRIDE)
+ iowrite32be(0, epu_base + offset);
+}
--- /dev/null
+++ b/drivers/soc/fsl/sleep_fsm.h
@@ -0,0 +1,130 @@
+/*
+ * deep sleep FSM (finite-state machine) configuration
+ *
+ * Copyright 2018 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _FSL_SLEEP_FSM_H
+#define _FSL_SLEEP_FSM_H
+
+#define FSL_STRIDE_4B 4
+#define FSL_STRIDE_8B 8
+
+/* End flag */
+#define FSM_END_FLAG 0xFFFFFFFFUL
+
+/* Block offsets */
+#define RCPM_BLOCK_OFFSET 0x00022000
+#define EPU_BLOCK_OFFSET 0x00000000
+#define NPC_BLOCK_OFFSET 0x00001000
+
+/* EPGCR (Event Processor Global Control Register) */
+#define EPGCR 0x000
+
+/* EPEVTCR0-9 (Event Processor EVT Pin Control Registers) */
+#define EPEVTCR0 0x050
+#define EPEVTCR9 0x074
+#define EPEVTCR_STRIDE FSL_STRIDE_4B
+
+/* EPXTRIGCR (Event Processor Crosstrigger Control Register) */
+#define EPXTRIGCR 0x090
+
+/* EPIMCR0-31 (Event Processor Input Mux Control Registers) */
+#define EPIMCR0 0x100
+#define EPIMCR31 0x17C
+#define EPIMCR_STRIDE FSL_STRIDE_4B
+
+/* EPSMCR0-15 (Event Processor SCU Mux Control Registers) */
+#define EPSMCR0 0x200
+#define EPSMCR15 0x278
+#define EPSMCR_STRIDE FSL_STRIDE_8B
+
+/* EPECR0-15 (Event Processor Event Control Registers) */
+#define EPECR0 0x300
+#define EPECR15 0x33C
+#define EPECR_STRIDE FSL_STRIDE_4B
+
+/* EPACR0-15 (Event Processor Action Control Registers) */
+#define EPACR0 0x400
+#define EPACR15 0x43C
+#define EPACR_STRIDE FSL_STRIDE_4B
+
+/* EPCCRi0-15 (Event Processor Counter Control Registers) */
+#define EPCCR0 0x800
+#define EPCCR15 0x83C
+#define EPCCR31 0x87C
+#define EPCCR_STRIDE FSL_STRIDE_4B
+
+/* EPCMPR0-15 (Event Processor Counter Compare Registers) */
+#define EPCMPR0 0x900
+#define EPCMPR15 0x93C
+#define EPCMPR31 0x97C
+#define EPCMPR_STRIDE FSL_STRIDE_4B
+
+/* EPCTR0-31 (Event Processor Counter Register) */
+#define EPCTR0 0xA00
+#define EPCTR31 0xA7C
+#define EPCTR_STRIDE FSL_STRIDE_4B
+
+/* NPC triggered Memory-Mapped Access Registers */
+#define NCR 0x000
+#define MCCR1 0x0CC
+#define MCSR1 0x0D0
+#define MMAR1LO 0x0D4
+#define MMAR1HI 0x0D8
+#define MMDR1 0x0DC
+#define MCSR2 0x0E0
+#define MMAR2LO 0x0E4
+#define MMAR2HI 0x0E8
+#define MMDR2 0x0EC
+#define MCSR3 0x0F0
+#define MMAR3LO 0x0F4
+#define MMAR3HI 0x0F8
+#define MMDR3 0x0FC
+
+/* RCPM Core State Action Control Register 0 */
+#define CSTTACR0 0xB00
+
+/* RCPM Core Group 1 Configuration Register 0 */
+#define CG1CR0 0x31C
+
+struct fsm_reg_vals {
+ u32 offset;
+ u32 value;
+};
+
+void fsl_fsm_setup(void __iomem *base, struct fsm_reg_vals *val);
+void fsl_epu_setup_default(void __iomem *epu_base);
+void fsl_npc_setup_default(void __iomem *npc_base);
+void fsl_epu_clean_default(void __iomem *epu_base);
+
+#endif /* _FSL_SLEEP_FSM_H */
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