1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2015 Freescale Semiconductor Inc.
8 #define pr_fmt(fmt) "%s: " fmt, __func__
10 #include <linux/kernel.h>
12 #include <linux/of_address.h>
13 #include <linux/fsl/guts.h>
16 #include <asm/fsl_pm.h>
18 static struct ccsr_guts __iomem
*guts
;
20 static void mpc85xx_irq_mask(int cpu
)
25 static void mpc85xx_irq_unmask(int cpu
)
30 static void mpc85xx_cpu_die(int cpu
)
34 tmp
= (mfspr(SPRN_HID0
) & ~(HID0_DOZE
|HID0_SLEEP
)) | HID0_NAP
;
35 mtspr(SPRN_HID0
, tmp
);
48 static void mpc85xx_cpu_up_prepare(int cpu
)
53 static void mpc85xx_freeze_time_base(bool freeze
)
57 mask
= CCSR_GUTS_DEVDISR_TB0
| CCSR_GUTS_DEVDISR_TB1
;
59 setbits32(&guts
->devdisr
, mask
);
61 clrbits32(&guts
->devdisr
, mask
);
63 in_be32(&guts
->devdisr
);
66 static const struct of_device_id mpc85xx_smp_guts_ids
[] = {
67 { .compatible
= "fsl,mpc8572-guts", },
68 { .compatible
= "fsl,p1020-guts", },
69 { .compatible
= "fsl,p1021-guts", },
70 { .compatible
= "fsl,p1022-guts", },
71 { .compatible
= "fsl,p1023-guts", },
72 { .compatible
= "fsl,p2020-guts", },
73 { .compatible
= "fsl,bsc9132-guts", },
77 static const struct fsl_pm_ops mpc85xx_pm_ops
= {
78 .freeze_time_base
= mpc85xx_freeze_time_base
,
79 .irq_mask
= mpc85xx_irq_mask
,
80 .irq_unmask
= mpc85xx_irq_unmask
,
81 .cpu_die
= mpc85xx_cpu_die
,
82 .cpu_up_prepare
= mpc85xx_cpu_up_prepare
,
85 int __init
mpc85xx_setup_pmc(void)
87 struct device_node
*np
;
89 np
= of_find_matching_node(NULL
, mpc85xx_smp_guts_ids
);
91 guts
= of_iomap(np
, 0);
94 pr_err("Could not map guts node address\n");
99 qoriq_pm_ops
= &mpc85xx_pm_ops
;