summaryrefslogtreecommitdiff
path: root/arch/arm/mach-prima2/pm.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-prima2/pm.c')
-rw-r--r--arch/arm/mach-prima2/pm.c153
1 files changed, 0 insertions, 153 deletions
diff --git a/arch/arm/mach-prima2/pm.c b/arch/arm/mach-prima2/pm.c
deleted file mode 100644
index c24bc89f320b..000000000000
--- a/arch/arm/mach-prima2/pm.c
+++ /dev/null
@@ -1,153 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * power management entry for CSR SiRFprimaII
- *
- * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- */
-
-#include <linux/kernel.h>
-#include <linux/suspend.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
-#include <linux/io.h>
-#include <linux/rtc/sirfsoc_rtciobrg.h>
-#include <asm/outercache.h>
-#include <asm/suspend.h>
-#include <asm/hardware/cache-l2x0.h>
-
-#include "pm.h"
-
-/*
- * suspend asm codes will access these to make DRAM become self-refresh and
- * system sleep
- */
-u32 sirfsoc_pwrc_base;
-void __iomem *sirfsoc_memc_base;
-
-static void sirfsoc_set_wakeup_source(void)
-{
- u32 pwr_trigger_en_reg;
- pwr_trigger_en_reg = sirfsoc_rtc_iobrg_readl(sirfsoc_pwrc_base +
- SIRFSOC_PWRC_TRIGGER_EN);
-#define X_ON_KEY_B (1 << 0)
-#define RTC_ALARM0_B (1 << 2)
-#define RTC_ALARM1_B (1 << 3)
- sirfsoc_rtc_iobrg_writel(pwr_trigger_en_reg | X_ON_KEY_B |
- RTC_ALARM0_B | RTC_ALARM1_B,
- sirfsoc_pwrc_base + SIRFSOC_PWRC_TRIGGER_EN);
-}
-
-static void sirfsoc_set_sleep_mode(u32 mode)
-{
- u32 sleep_mode = sirfsoc_rtc_iobrg_readl(sirfsoc_pwrc_base +
- SIRFSOC_PWRC_PDN_CTRL);
- sleep_mode &= ~(SIRFSOC_SLEEP_MODE_MASK << 1);
- sleep_mode |= mode << 1;
- sirfsoc_rtc_iobrg_writel(sleep_mode, sirfsoc_pwrc_base +
- SIRFSOC_PWRC_PDN_CTRL);
-}
-
-static int sirfsoc_pre_suspend_power_off(void)
-{
- u32 wakeup_entry = __pa_symbol(cpu_resume);
-
- sirfsoc_rtc_iobrg_writel(wakeup_entry, sirfsoc_pwrc_base +
- SIRFSOC_PWRC_SCRATCH_PAD1);
-
- sirfsoc_set_wakeup_source();
-
- sirfsoc_set_sleep_mode(SIRFSOC_DEEP_SLEEP_MODE);
-
- return 0;
-}
-
-static int sirfsoc_pm_enter(suspend_state_t state)
-{
- switch (state) {
- case PM_SUSPEND_MEM:
- sirfsoc_pre_suspend_power_off();
-
- outer_disable();
- /* go zzz */
- cpu_suspend(0, sirfsoc_finish_suspend);
- outer_resume();
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static const struct platform_suspend_ops sirfsoc_pm_ops = {
- .enter = sirfsoc_pm_enter,
- .valid = suspend_valid_only_mem,
-};
-
-static const struct of_device_id pwrc_ids[] = {
- { .compatible = "sirf,prima2-pwrc" },
- {}
-};
-
-static int __init sirfsoc_of_pwrc_init(void)
-{
- struct device_node *np;
-
- np = of_find_matching_node(NULL, pwrc_ids);
- if (!np) {
- pr_err("unable to find compatible sirf pwrc node in dtb\n");
- return -ENOENT;
- }
-
- /*
- * pwrc behind rtciobrg is not located in memory space
- * though the property is named reg. reg only means base
- * offset for pwrc. then of_iomap is not suitable here.
- */
- if (of_property_read_u32(np, "reg", &sirfsoc_pwrc_base))
- panic("unable to find base address of pwrc node in dtb\n");
-
- of_node_put(np);
-
- return 0;
-}
-
-static const struct of_device_id memc_ids[] = {
- { .compatible = "sirf,prima2-memc" },
- {}
-};
-
-static int sirfsoc_memc_probe(struct platform_device *op)
-{
- struct device_node *np = op->dev.of_node;
-
- sirfsoc_memc_base = of_iomap(np, 0);
- if (!sirfsoc_memc_base)
- panic("unable to map memc registers\n");
-
- return 0;
-}
-
-static struct platform_driver sirfsoc_memc_driver = {
- .probe = sirfsoc_memc_probe,
- .driver = {
- .name = "sirfsoc-memc",
- .of_match_table = memc_ids,
- },
-};
-
-static int __init sirfsoc_memc_init(void)
-{
- return platform_driver_register(&sirfsoc_memc_driver);
-}
-
-int __init sirfsoc_pm_init(void)
-{
- sirfsoc_of_pwrc_init();
- sirfsoc_memc_init();
- suspend_set_ops(&sirfsoc_pm_ops);
- return 0;
-}