1 // SPDX-License-Identifier: GPL-2.0-only
7  * Copyright (c) 2006-2007 Freescale Semiconductor, Inc.
47 	u32 event;  member
49 /* All but PMCI are deep-sleep only */
61 	/* deep-sleep only */
68 	/* deep-sleep only */
124 	u32 reg_cfg1 = in_be32(&pmc_regs->config1);  in mpc83xx_change_state()
134 			out_be32(&pmc_regs->config1, reg_cfg1);  in mpc83xx_change_state()
146 	u32 event = in_be32(&pmc_regs->event);  in pmc_irq_handler()  local
152 	if (event) {  in pmc_irq_handler()
153 		out_be32(&pmc_regs->event, event);  in pmc_irq_handler()
162 	out_be32(&syscr_regs->sicrl, saved_regs.sicrl);  in mpc83xx_suspend_restore_regs()
163 	out_be32(&syscr_regs->sicrh, saved_regs.sicrh);  in mpc83xx_suspend_restore_regs()
164 	out_be32(&clock_regs->sccr, saved_regs.sccr);  in mpc83xx_suspend_restore_regs()
169 	saved_regs.sicrl = in_be32(&syscr_regs->sicrl);  in mpc83xx_suspend_save_regs()
170 	saved_regs.sicrh = in_be32(&syscr_regs->sicrh);  in mpc83xx_suspend_save_regs()
171 	saved_regs.sccr = in_be32(&clock_regs->sccr);  in mpc83xx_suspend_save_regs()
176 	int ret = -EAGAIN;  in mpc83xx_suspend_enter()
186 		out_be32(&pmc_regs->config1,  in mpc83xx_suspend_enter()
187 		         in_be32(&pmc_regs->config1) | PMCCR1_PME_EN);  in mpc83xx_suspend_enter()
190 	/* Put the system into low-power mode and the RAM  in mpc83xx_suspend_enter()
191 	 * into self-refresh mode once the core goes to  in mpc83xx_suspend_enter()
195 	out_be32(&pmc_regs->config, PMCCR_SLPEN | PMCCR_DLPEN);  in mpc83xx_suspend_enter()
197 	/* If it has deep sleep (i.e. it's an 831x or compatible),  in mpc83xx_suspend_enter()
199 	 * require going through the boot firmware upon a wakeup event.  in mpc83xx_suspend_enter()
205 		out_be32(&pmc_regs->mask, PMCER_ALL);  in mpc83xx_suspend_enter()
207 		out_be32(&pmc_regs->config1,  in mpc83xx_suspend_enter()
208 		         in_be32(&pmc_regs->config1) | PMCCR1_POWER_OFF);  in mpc83xx_suspend_enter()
214 		out_be32(&pmc_regs->config1,  in mpc83xx_suspend_enter()
215 		         in_be32(&pmc_regs->config1) & ~PMCCR1_POWER_OFF);  in mpc83xx_suspend_enter()
217 		out_be32(&pmc_regs->mask, PMCER_PMCI);  in mpc83xx_suspend_enter()
221 		out_be32(&pmc_regs->mask, PMCER_PMCI);  in mpc83xx_suspend_enter()
229 	out_be32(&pmc_regs->config1,  in mpc83xx_suspend_enter()
230 	         in_be32(&pmc_regs->config1) & ~PMCCR1_PME_EN);  in mpc83xx_suspend_enter()
259 			return -EINVAL;  in mpc83xx_suspend_begin()
273 		 * a userspace-driven suspend request.  It's probably best  in agent_thread_fn()
292 	out_be32(&pmc_regs->config1, PMCCR1_USE_STATE);  in mpc83xx_set_agent()
293 	out_be32(&pmc_regs->mask, PMCER_PMCI);  in mpc83xx_set_agent()
307 		return -ENOMEM;  in mpc83xx_is_pci_agent()
309 	ret = !(in_be32(&rcw_regs->rcwhr) & RCW_PCI_HOST);  in mpc83xx_is_pci_agent()
326 	struct device_node *np = ofdev->dev.of_node;  in pmc_probe()
331 	match = of_match_device(pmc_match, &ofdev->dev);  in pmc_probe()
333 		return -EINVAL;  in pmc_probe()
335 	type = match->data;  in pmc_probe()
338 		return -ENODEV;  in pmc_probe()
340 	has_deep_sleep = type->has_deep_sleep;  in pmc_probe()
350 		return -ENODEV;  in pmc_probe()
358 			return -EBUSY;  in pmc_probe()
364 		ret = -ENOMEM;  in pmc_probe()
370 		ret = -ENODEV;  in pmc_probe()
377 		ret = -ENOMEM;  in pmc_probe()
385 			ret = -ENOMEM;  in pmc_probe()
409 	return -EPERM;  in pmc_remove()
423 		.compatible = "fsl,mpc8313-pmc",
427 		.compatible = "fsl,mpc8349-pmc",
435 		.name = "mpc83xx-pmc",