1 // SPDX-License-Identifier: GPL-2.0
10 extern void mpc52xx_deep_sleep(void __iomem *sram, void __iomem *sdram_regs,
22 static void __iomem *sram;  variable
42 	out_8(&gpiow->wkup_gpioe, in_8(&gpiow->wkup_gpioe) | (1 << pin));  in mpc52xx_set_wakeup_gpio()
44 	out_8(&gpiow->wkup_ddr, in_8(&gpiow->wkup_ddr) & ~(1 << pin));  in mpc52xx_set_wakeup_gpio()
46 	out_8(&gpiow->wkup_inten, in_8(&gpiow->wkup_inten) | (1 << pin));  in mpc52xx_set_wakeup_gpio()
48 	tmp = in_be16(&gpiow->wkup_itype);  in mpc52xx_set_wakeup_gpio()
51 	out_be16(&gpiow->wkup_itype, tmp);  in mpc52xx_set_wakeup_gpio()
53 	out_8(&gpiow->wkup_maste, 1);  in mpc52xx_set_wakeup_gpio()
62 		{ .compatible = "fsl,mpc5200-immr", },  in mpc52xx_pm_prepare()
63 		{ .compatible = "fsl,mpc5200b-immr", },  in mpc52xx_pm_prepare()
76 		return -ENOSYS;  in mpc52xx_pm_prepare()
79 	mbar = ioremap(res.start, 0xc000); /* we should map whole region including SRAM */  in mpc52xx_pm_prepare()
84 		return -ENOSYS;  in mpc52xx_pm_prepare()
91 	sram	= mbar + 0x8000;	/* Those will be handled by the */  in mpc52xx_pm_prepare()
107 	return -ENOSYS;  in mpc52xx_pm_prepare()
120 	char saved_0x500[0x600-0x500];  in mpc52xx_pm_enter()
123 		return -ENOMEM;  in mpc52xx_pm_enter()
126 	intr_main_mask = in_be32(&intr->main_mask);  in mpc52xx_pm_enter()
127 	out_be32(&intr->main_mask, intr_main_mask | 0x1ffff);  in mpc52xx_pm_enter()
132 	/* save SRAM */  in mpc52xx_pm_enter()
133 	memcpy(saved_sram, sram, sram_size);  in mpc52xx_pm_enter()
135 	/* copy low level suspend code to sram */  in mpc52xx_pm_enter()
136 	memcpy(sram, mpc52xx_ds_sram, mpc52xx_ds_sram_size);  in mpc52xx_pm_enter()
138 	out_8(&cdm->ccs_sleep_enable, 1);  in mpc52xx_pm_enter()
139 	out_8(&cdm->osc_sleep_enable, 1);  in mpc52xx_pm_enter()
140 	out_8(&cdm->ccs_qreq_test, 1);  in mpc52xx_pm_enter()
142 	/* disable all but SDRAM and bestcomm (SRAM) clocks */  in mpc52xx_pm_enter()
143 	clk_enables = in_be32(&cdm->clk_enables);  in mpc52xx_pm_enter()
144 	out_be32(&cdm->clk_enables, clk_enables & 0x00088000);  in mpc52xx_pm_enter()
159 	/* call low-level sleep code */  in mpc52xx_pm_enter()
160 	mpc52xx_deep_sleep(sram, sdram, cdm, intr);  in mpc52xx_pm_enter()
171 	out_be32(&cdm->clk_enables, clk_enables);  in mpc52xx_pm_enter()
172 	out_8(&cdm->ccs_sleep_enable, 0);  in mpc52xx_pm_enter()
173 	out_8(&cdm->osc_sleep_enable, 0);  in mpc52xx_pm_enter()
175 	/* restore SRAM */  in mpc52xx_pm_enter()
176 	memcpy(sram, saved_sram, sram_size);  in mpc52xx_pm_enter()
179 	out_be32(&intr->main_mask, intr_main_mask);  in mpc52xx_pm_enter()