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path: root/drivers/soc/bcm/bcm63xx/bcm63xx-power.c
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Diffstat (limited to 'drivers/soc/bcm/bcm63xx/bcm63xx-power.c')
-rw-r--r--drivers/soc/bcm/bcm63xx/bcm63xx-power.c376
1 files changed, 0 insertions, 376 deletions
diff --git a/drivers/soc/bcm/bcm63xx/bcm63xx-power.c b/drivers/soc/bcm/bcm63xx/bcm63xx-power.c
deleted file mode 100644
index aa72e13d5d0e..000000000000
--- a/drivers/soc/bcm/bcm63xx/bcm63xx-power.c
+++ /dev/null
@@ -1,376 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * BCM63xx Power Domain Controller Driver
- *
- * Copyright (C) 2020 Álvaro Fernández Rojas <noltari@gmail.com>
- */
-
-#include <dt-bindings/soc/bcm6318-pm.h>
-#include <dt-bindings/soc/bcm6328-pm.h>
-#include <dt-bindings/soc/bcm6362-pm.h>
-#include <dt-bindings/soc/bcm63268-pm.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pm_domain.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-
-struct bcm63xx_power_dev {
- struct generic_pm_domain genpd;
- struct bcm63xx_power *power;
- uint32_t mask;
-};
-
-struct bcm63xx_power {
- void __iomem *base;
- spinlock_t lock;
- struct bcm63xx_power_dev *dev;
- struct genpd_onecell_data genpd_data;
- struct generic_pm_domain **genpd;
-};
-
-struct bcm63xx_power_data {
- const char * const name;
- uint8_t bit;
- unsigned int flags;
-};
-
-static int bcm63xx_power_get_state(struct bcm63xx_power_dev *pmd, bool *is_on)
-{
- struct bcm63xx_power *power = pmd->power;
-
- if (!pmd->mask) {
- *is_on = false;
- return -EINVAL;
- }
-
- *is_on = !(__raw_readl(power->base) & pmd->mask);
-
- return 0;
-}
-
-static int bcm63xx_power_set_state(struct bcm63xx_power_dev *pmd, bool on)
-{
- struct bcm63xx_power *power = pmd->power;
- unsigned long flags;
- uint32_t val;
-
- if (!pmd->mask)
- return -EINVAL;
-
- spin_lock_irqsave(&power->lock, flags);
- val = __raw_readl(power->base);
- if (on)
- val &= ~pmd->mask;
- else
- val |= pmd->mask;
- __raw_writel(val, power->base);
- spin_unlock_irqrestore(&power->lock, flags);
-
- return 0;
-}
-
-static int bcm63xx_power_on(struct generic_pm_domain *genpd)
-{
- struct bcm63xx_power_dev *pmd = container_of(genpd,
- struct bcm63xx_power_dev, genpd);
-
- return bcm63xx_power_set_state(pmd, true);
-}
-
-static int bcm63xx_power_off(struct generic_pm_domain *genpd)
-{
- struct bcm63xx_power_dev *pmd = container_of(genpd,
- struct bcm63xx_power_dev, genpd);
-
- return bcm63xx_power_set_state(pmd, false);
-}
-
-static int bcm63xx_power_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
- const struct bcm63xx_power_data *entry, *table;
- struct bcm63xx_power *power;
- unsigned int ndom;
- uint8_t max_bit = 0;
- int ret;
-
- power = devm_kzalloc(dev, sizeof(*power), GFP_KERNEL);
- if (!power)
- return -ENOMEM;
-
- power->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(power->base))
- return PTR_ERR(power->base);
-
- table = of_device_get_match_data(dev);
- if (!table)
- return -EINVAL;
-
- power->genpd_data.num_domains = 0;
- ndom = 0;
- for (entry = table; entry->name; entry++) {
- max_bit = max(max_bit, entry->bit);
- ndom++;
- }
-
- if (!ndom)
- return -ENODEV;
-
- power->genpd_data.num_domains = max_bit + 1;
-
- power->dev = devm_kcalloc(dev, power->genpd_data.num_domains,
- sizeof(struct bcm63xx_power_dev),
- GFP_KERNEL);
- if (!power->dev)
- return -ENOMEM;
-
- power->genpd = devm_kcalloc(dev, power->genpd_data.num_domains,
- sizeof(struct generic_pm_domain *),
- GFP_KERNEL);
- if (!power->genpd)
- return -ENOMEM;
-
- power->genpd_data.domains = power->genpd;
-
- ndom = 0;
- for (entry = table; entry->name; entry++) {
- struct bcm63xx_power_dev *pmd = &power->dev[ndom];
- bool is_on;
-
- pmd->power = power;
- pmd->mask = BIT(entry->bit);
- pmd->genpd.name = entry->name;
- pmd->genpd.flags = entry->flags;
-
- ret = bcm63xx_power_get_state(pmd, &is_on);
- if (ret)
- dev_warn(dev, "unable to get current state for %s\n",
- pmd->genpd.name);
-
- pmd->genpd.power_on = bcm63xx_power_on;
- pmd->genpd.power_off = bcm63xx_power_off;
-
- pm_genpd_init(&pmd->genpd, NULL, !is_on);
- power->genpd[entry->bit] = &pmd->genpd;
-
- ndom++;
- }
-
- spin_lock_init(&power->lock);
-
- ret = of_genpd_add_provider_onecell(np, &power->genpd_data);
- if (ret) {
- dev_err(dev, "failed to register genpd driver: %d\n", ret);
- return ret;
- }
-
- dev_info(dev, "registered %u power domains\n", ndom);
-
- return 0;
-}
-
-static const struct bcm63xx_power_data bcm6318_power_domains[] = {
- {
- .name = "pcie",
- .bit = BCM6318_POWER_DOMAIN_PCIE,
- }, {
- .name = "usb",
- .bit = BCM6318_POWER_DOMAIN_USB,
- }, {
- .name = "ephy0",
- .bit = BCM6318_POWER_DOMAIN_EPHY0,
- }, {
- .name = "ephy1",
- .bit = BCM6318_POWER_DOMAIN_EPHY1,
- }, {
- .name = "ephy2",
- .bit = BCM6318_POWER_DOMAIN_EPHY2,
- }, {
- .name = "ephy3",
- .bit = BCM6318_POWER_DOMAIN_EPHY3,
- }, {
- .name = "ldo2p5",
- .bit = BCM6318_POWER_DOMAIN_LDO2P5,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "ldo2p9",
- .bit = BCM6318_POWER_DOMAIN_LDO2P9,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "sw1p0",
- .bit = BCM6318_POWER_DOMAIN_SW1P0,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "pad",
- .bit = BCM6318_POWER_DOMAIN_PAD,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- /* sentinel */
- },
-};
-
-static const struct bcm63xx_power_data bcm6328_power_domains[] = {
- {
- .name = "adsl2-mips",
- .bit = BCM6328_POWER_DOMAIN_ADSL2_MIPS,
- }, {
- .name = "adsl2-phy",
- .bit = BCM6328_POWER_DOMAIN_ADSL2_PHY,
- }, {
- .name = "adsl2-afe",
- .bit = BCM6328_POWER_DOMAIN_ADSL2_AFE,
- }, {
- .name = "sar",
- .bit = BCM6328_POWER_DOMAIN_SAR,
- }, {
- .name = "pcm",
- .bit = BCM6328_POWER_DOMAIN_PCM,
- }, {
- .name = "usbd",
- .bit = BCM6328_POWER_DOMAIN_USBD,
- }, {
- .name = "usbh",
- .bit = BCM6328_POWER_DOMAIN_USBH,
- }, {
- .name = "pcie",
- .bit = BCM6328_POWER_DOMAIN_PCIE,
- }, {
- .name = "robosw",
- .bit = BCM6328_POWER_DOMAIN_ROBOSW,
- }, {
- .name = "ephy",
- .bit = BCM6328_POWER_DOMAIN_EPHY,
- }, {
- /* sentinel */
- },
-};
-
-static const struct bcm63xx_power_data bcm6362_power_domains[] = {
- {
- .name = "sar",
- .bit = BCM6362_POWER_DOMAIN_SAR,
- }, {
- .name = "ipsec",
- .bit = BCM6362_POWER_DOMAIN_IPSEC,
- }, {
- .name = "mips",
- .bit = BCM6362_POWER_DOMAIN_MIPS,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "dect",
- .bit = BCM6362_POWER_DOMAIN_DECT,
- }, {
- .name = "usbh",
- .bit = BCM6362_POWER_DOMAIN_USBH,
- }, {
- .name = "usbd",
- .bit = BCM6362_POWER_DOMAIN_USBD,
- }, {
- .name = "robosw",
- .bit = BCM6362_POWER_DOMAIN_ROBOSW,
- }, {
- .name = "pcm",
- .bit = BCM6362_POWER_DOMAIN_PCM,
- }, {
- .name = "periph",
- .bit = BCM6362_POWER_DOMAIN_PERIPH,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "adsl-phy",
- .bit = BCM6362_POWER_DOMAIN_ADSL_PHY,
- }, {
- .name = "gmii-pads",
- .bit = BCM6362_POWER_DOMAIN_GMII_PADS,
- }, {
- .name = "fap",
- .bit = BCM6362_POWER_DOMAIN_FAP,
- }, {
- .name = "pcie",
- .bit = BCM6362_POWER_DOMAIN_PCIE,
- }, {
- .name = "wlan-pads",
- .bit = BCM6362_POWER_DOMAIN_WLAN_PADS,
- }, {
- /* sentinel */
- },
-};
-
-static const struct bcm63xx_power_data bcm63268_power_domains[] = {
- {
- .name = "sar",
- .bit = BCM63268_POWER_DOMAIN_SAR,
- }, {
- .name = "ipsec",
- .bit = BCM63268_POWER_DOMAIN_IPSEC,
- }, {
- .name = "mips",
- .bit = BCM63268_POWER_DOMAIN_MIPS,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "dect",
- .bit = BCM63268_POWER_DOMAIN_DECT,
- }, {
- .name = "usbh",
- .bit = BCM63268_POWER_DOMAIN_USBH,
- }, {
- .name = "usbd",
- .bit = BCM63268_POWER_DOMAIN_USBD,
- }, {
- .name = "robosw",
- .bit = BCM63268_POWER_DOMAIN_ROBOSW,
- }, {
- .name = "pcm",
- .bit = BCM63268_POWER_DOMAIN_PCM,
- }, {
- .name = "periph",
- .bit = BCM63268_POWER_DOMAIN_PERIPH,
- .flags = GENPD_FLAG_ALWAYS_ON,
- }, {
- .name = "vdsl-phy",
- .bit = BCM63268_POWER_DOMAIN_VDSL_PHY,
- }, {
- .name = "vdsl-mips",
- .bit = BCM63268_POWER_DOMAIN_VDSL_MIPS,
- }, {
- .name = "fap",
- .bit = BCM63268_POWER_DOMAIN_FAP,
- }, {
- .name = "pcie",
- .bit = BCM63268_POWER_DOMAIN_PCIE,
- }, {
- .name = "wlan-pads",
- .bit = BCM63268_POWER_DOMAIN_WLAN_PADS,
- }, {
- /* sentinel */
- },
-};
-
-static const struct of_device_id bcm63xx_power_of_match[] = {
- {
- .compatible = "brcm,bcm6318-power-controller",
- .data = &bcm6318_power_domains,
- }, {
- .compatible = "brcm,bcm6328-power-controller",
- .data = &bcm6328_power_domains,
- }, {
- .compatible = "brcm,bcm6362-power-controller",
- .data = &bcm6362_power_domains,
- }, {
- .compatible = "brcm,bcm63268-power-controller",
- .data = &bcm63268_power_domains,
- }, {
- /* sentinel */
- }
-};
-
-static struct platform_driver bcm63xx_power_driver = {
- .driver = {
- .name = "bcm63xx-power-controller",
- .of_match_table = bcm63xx_power_of_match,
- },
- .probe = bcm63xx_power_probe,
-};
-builtin_platform_driver(bcm63xx_power_driver);
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-05 13:53:37 +0300