1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Copyright 2011-2014 Freescale Semiconductor, Inc.
12 #include <linux/irqchip/arm-gic.h>
14 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
22 #include <asm/proc-fns.h>
99 	0x56c, 0x578, 0x588, 0x594, /* CAS, RAS, SDCLK_0, SDCLK_1 */
111 	0x464, 0x490, 0x4ac, 0x4b0, /* CAS, RAS, SDCLK_0, SDCLK_1 */
123 	0x300, 0x31c, 0x338, 0x5ac, /* CAS, RAS, SDCLK_0, GPR_ADDS */
138 	0x300, 0x2fc, 0x32c, 0x5f4, /* CAS, RAS, SDCLK_0, GPR_ADDS */
144 	0x244, 0x248, 0x24c, 0x250, /* DQM0, DQM1, RAS, CAS */
145 	0x27c, 0x498, 0x4a4, 0x490, /* SDCLK0, GPR_B0DS-B1DS, GPR_ADDS */
151 	.mmdc_compat = "fsl,imx6q-mmdc",
152 	.src_compat = "fsl,imx6q-src",
153 	.iomuxc_compat = "fsl,imx6q-iomuxc",
154 	.gpc_compat = "fsl,imx6q-gpc",
155 	.pl310_compat = "arm,pl310-cache",
161 	.mmdc_compat = "fsl,imx6q-mmdc",
162 	.src_compat = "fsl,imx6q-src",
163 	.iomuxc_compat = "fsl,imx6dl-iomuxc",
164 	.gpc_compat = "fsl,imx6q-gpc",
165 	.pl310_compat = "arm,pl310-cache",
171 	.mmdc_compat = "fsl,imx6sl-mmdc",
172 	.src_compat = "fsl,imx6sl-src",
173 	.iomuxc_compat = "fsl,imx6sl-iomuxc",
174 	.gpc_compat = "fsl,imx6sl-gpc",
175 	.pl310_compat = "arm,pl310-cache",
181 	.mmdc_compat = "fsl,imx6sll-mmdc",
182 	.src_compat = "fsl,imx6sll-src",
183 	.iomuxc_compat = "fsl,imx6sll-iomuxc",
184 	.gpc_compat = "fsl,imx6sll-gpc",
185 	.pl310_compat = "arm,pl310-cache",
191 	.mmdc_compat = "fsl,imx6sx-mmdc",
192 	.src_compat = "fsl,imx6sx-src",
193 	.iomuxc_compat = "fsl,imx6sx-iomuxc",
194 	.gpc_compat = "fsl,imx6sx-gpc",
195 	.pl310_compat = "arm,pl310-cache",
201 	.mmdc_compat = "fsl,imx6ul-mmdc",
202 	.src_compat = "fsl,imx6ul-src",
203 	.iomuxc_compat = "fsl,imx6ul-iomuxc",
204 	.gpc_compat = "fsl,imx6ul-gpc",
212  * suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct
214  * arch/arm/mach-imx/suspend-imx6.S must be also changed accordingly,
215  * otherwise, the suspend to ocram function will be broken!
229 	u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][2]; /* To save offset and value */
247 	 * need to mask all interrupts in GPC before  in imx6_enable_rbc()
265 	 * need to delay at least 2 cycles of CKIL(32K)  in imx6_enable_rbc()
266 	 * due to hardware design requirement, which is  in imx6_enable_rbc()
335 		return -EINVAL;  in imx6_set_lpm()
339 	 * ERR007265: CCM: When improper low-power sequence is used,  in imx6_set_lpm()
343 	 * 1) Software should trigger IRQ #32 (IOMUX) to be always pending  in imx6_set_lpm()
346 	 *    Low-Power mode.  in imx6_set_lpm()
347 	 * 3) Software should mask IRQ #32 right after CCM Low-Power mode  in imx6_set_lpm()
348 	 *    is set (set bits 0-1 of CCM_CLPCR).  in imx6_set_lpm()
368 		 * as we need to float DDR IO.  in imx6q_suspend_finish()
371 		/* check if need to flush internal L2 cache */  in imx6q_suspend_finish()
373 			suspend_ocram_base)->l2_base.vbase)  in imx6q_suspend_finish()
403 		 * RBC setting, so we do NOT need to do that here.  in imx6q_pm_enter()
421 		return -EINVAL;  in imx6q_pm_enter()
446 		return -ENODEV;  in imx6_pm_get_base()
452 	base->pbase = res.start;  in imx6_pm_get_base()
453 	base->vbase = ioremap(res.start, resource_size(&res));  in imx6_pm_get_base()
454 	if (!base->vbase)  in imx6_pm_get_base()
455 		ret = -ENOMEM;  in imx6_pm_get_base()
477 		return -EINVAL;  in imx6q_suspend_init()
480 	node = of_find_compatible_node(NULL, NULL, "mmio-sram");  in imx6q_suspend_init()
482 		pr_warn("%s: failed to find ocram node!\n", __func__);  in imx6q_suspend_init()
483 		return -ENODEV;  in imx6q_suspend_init()
488 		pr_warn("%s: failed to find ocram device!\n", __func__);  in imx6q_suspend_init()
489 		ret = -ENODEV;  in imx6q_suspend_init()
493 	ocram_pool = gen_pool_get(&pdev->dev, NULL);  in imx6q_suspend_init()
496 		ret = -ENODEV;  in imx6q_suspend_init()
502 		pr_warn("%s: unable to alloc ocram!\n", __func__);  in imx6q_suspend_init()
503 		ret = -ENOMEM;  in imx6q_suspend_init()
514 	pm_info->pbase = ocram_pbase;  in imx6q_suspend_init()
515 	pm_info->resume_addr = __pa_symbol(v7_cpu_resume);  in imx6q_suspend_init()
516 	pm_info->pm_info_size = sizeof(*pm_info);  in imx6q_suspend_init()
522 	pm_info->ccm_base.vbase = ccm_base;  in imx6q_suspend_init()
524 	ret = imx6_pm_get_base(&pm_info->mmdc_base, socdata->mmdc_compat);  in imx6q_suspend_init()
526 		pr_warn("%s: failed to get mmdc base %d!\n", __func__, ret);  in imx6q_suspend_init()
530 	ret = imx6_pm_get_base(&pm_info->src_base, socdata->src_compat);  in imx6q_suspend_init()
532 		pr_warn("%s: failed to get src base %d!\n", __func__, ret);  in imx6q_suspend_init()
536 	ret = imx6_pm_get_base(&pm_info->iomuxc_base, socdata->iomuxc_compat);  in imx6q_suspend_init()
538 		pr_warn("%s: failed to get iomuxc base %d!\n", __func__, ret);  in imx6q_suspend_init()
542 	ret = imx6_pm_get_base(&pm_info->gpc_base, socdata->gpc_compat);  in imx6q_suspend_init()
544 		pr_warn("%s: failed to get gpc base %d!\n", __func__, ret);  in imx6q_suspend_init()
548 	if (socdata->pl310_compat) {  in imx6q_suspend_init()
549 		ret = imx6_pm_get_base(&pm_info->l2_base, socdata->pl310_compat);  in imx6q_suspend_init()
551 			pr_warn("%s: failed to get pl310-cache base %d!\n",  in imx6q_suspend_init()
557 	pm_info->ddr_type = imx_mmdc_get_ddr_type();  in imx6q_suspend_init()
558 	pm_info->mmdc_io_num = socdata->mmdc_io_num;  in imx6q_suspend_init()
559 	mmdc_offset_array = socdata->mmdc_io_offset;  in imx6q_suspend_init()
561 	for (i = 0; i < pm_info->mmdc_io_num; i++) {  in imx6q_suspend_init()
562 		pm_info->mmdc_io_val[i][0] =  in imx6q_suspend_init()
564 		pm_info->mmdc_io_val[i][1] =  in imx6q_suspend_init()
565 			readl_relaxed(pm_info->iomuxc_base.vbase +  in imx6q_suspend_init()
572 		MX6Q_SUSPEND_OCRAM_SIZE - sizeof(*pm_info));  in imx6q_suspend_init()
577 	iounmap(pm_info->gpc_base.vbase);  in imx6q_suspend_init()
579 	iounmap(pm_info->iomuxc_base.vbase);  in imx6q_suspend_init()
581 	iounmap(pm_info->src_base.vbase);  in imx6q_suspend_init()
583 	iounmap(pm_info->mmdc_base.vbase);  in imx6q_suspend_init()
585 	put_device(&pdev->dev);  in imx6q_suspend_init()
610 	 * Force IOMUXC irq pending, so that the interrupt to GPC can be  in imx6_pm_common_init()
611 	 * used to deassert dsm_request signal when the signal gets  in imx6_pm_common_init()
614 	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");  in imx6_pm_common_init()
628 	pr_emerg("Unable to poweroff system\n");  in imx6_pm_stby_poweroff()
636 		return -EBUSY;  in imx6_pm_stby_poweroff_probe()
653 	 * Initialize CCM_CLPCR_LPM into RUN mode to avoid ARM core  in imx6_pm_ccm_init()
660 	if (of_property_read_bool(np, "fsl,pmic-stby-poweroff"))  in imx6_pm_ccm_init()
684 		gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");  in imx6sl_pm_init()