1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Author: Huacai Chen <chenhuacai@loongson.cn>
4  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
5  */
6 
7 #ifndef __ASM_LOONGSON_H
8 #define __ASM_LOONGSON_H
9 
10 #include <linux/init.h>
11 #include <linux/io.h>
12 #include <linux/irq.h>
13 #include <linux/pci.h>
14 #include <asm/addrspace.h>
15 #include <asm/bootinfo.h>
16 
17 #define LOONGSON_REG(x) \
18 	(*(volatile u32 *)((char *)TO_UNCACHE(LOONGSON_REG_BASE) + (x)))
19 
20 #define LOONGSON_LIO_BASE	0x18000000
21 #define LOONGSON_LIO_SIZE	0x00100000	/* 1M */
22 #define LOONGSON_LIO_TOP	(LOONGSON_LIO_BASE+LOONGSON_LIO_SIZE-1)
23 
24 #define LOONGSON_BOOT_BASE	0x1c000000
25 #define LOONGSON_BOOT_SIZE	0x02000000	/* 32M */
26 #define LOONGSON_BOOT_TOP	(LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
27 
28 #define LOONGSON_REG_BASE	0x1fe00000
29 #define LOONGSON_REG_SIZE	0x00100000	/* 1M */
30 #define LOONGSON_REG_TOP	(LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)
31 
32 /* GPIO Regs - r/w */
33 
34 #define LOONGSON_GPIODATA		LOONGSON_REG(0x11c)
35 #define LOONGSON_GPIOIE			LOONGSON_REG(0x120)
36 #define LOONGSON_REG_GPIO_BASE          (LOONGSON_REG_BASE + 0x11c)
37 
38 #define MAX_PACKAGES 16
39 
40 #define xconf_readl(addr) readl(addr)
41 #define xconf_readq(addr) readq(addr)
42 
43 static inline void xconf_writel(u32 val, volatile void __iomem *addr)
44 {
45 	asm volatile (
46 	"	st.w	%[v], %[hw], 0	\n"
47 	"	ld.b	$zero, %[hw], 0	\n"
48 	:
49 	: [hw] "r" (addr), [v] "r" (val)
50 	);
51 }
52 
53 static inline void xconf_writeq(u64 val64, volatile void __iomem *addr)
54 {
55 	asm volatile (
56 	"	st.d	%[v], %[hw], 0	\n"
57 	"	ld.b	$zero, %[hw], 0	\n"
58 	:
59 	: [hw] "r" (addr),  [v] "r" (val64)
60 	);
61 }
62 
63 /* ============== LS7A registers =============== */
64 #define LS7A_PCH_REG_BASE		0x10000000UL
65 /* LPC regs */
66 #define LS7A_LPC_REG_BASE		(LS7A_PCH_REG_BASE + 0x00002000)
67 /* CHIPCFG regs */
68 #define LS7A_CHIPCFG_REG_BASE		(LS7A_PCH_REG_BASE + 0x00010000)
69 /* MISC reg base */
70 #define LS7A_MISC_REG_BASE		(LS7A_PCH_REG_BASE + 0x00080000)
71 /* ACPI regs */
72 #define LS7A_ACPI_REG_BASE		(LS7A_MISC_REG_BASE + 0x00050000)
73 /* RTC regs */
74 #define LS7A_RTC_REG_BASE		(LS7A_MISC_REG_BASE + 0x00050100)
75 
76 #define LS7A_DMA_CFG			(volatile void *)TO_UNCACHE(LS7A_CHIPCFG_REG_BASE + 0x041c)
77 #define LS7A_DMA_NODE_SHF		8
78 #define LS7A_DMA_NODE_MASK		0x1F00
79 
80 #define LS7A_INT_MASK_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x020)
81 #define LS7A_INT_EDGE_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x060)
82 #define LS7A_INT_CLEAR_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x080)
83 #define LS7A_INT_HTMSI_EN_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x040)
84 #define LS7A_INT_ROUTE_ENTRY_REG	(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x100)
85 #define LS7A_INT_HTMSI_VEC_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x200)
86 #define LS7A_INT_STATUS_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x3a0)
87 #define LS7A_INT_POL_REG		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x3e0)
88 #define LS7A_LPC_INT_CTL		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2000)
89 #define LS7A_LPC_INT_ENA		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2004)
90 #define LS7A_LPC_INT_STS		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2008)
91 #define LS7A_LPC_INT_CLR		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x200c)
92 #define LS7A_LPC_INT_POL		(volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2010)
93 
94 #define LS7A_PMCON_SOC_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x000)
95 #define LS7A_PMCON_RESUME_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x004)
96 #define LS7A_PMCON_RTC_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x008)
97 #define LS7A_PM1_EVT_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x00c)
98 #define LS7A_PM1_ENA_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x010)
99 #define LS7A_PM1_CNT_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x014)
100 #define LS7A_PM1_TMR_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x018)
101 #define LS7A_P_CNT_REG			(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x01c)
102 #define LS7A_GPE0_STS_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x028)
103 #define LS7A_GPE0_ENA_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x02c)
104 #define LS7A_RST_CNT_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x030)
105 #define LS7A_WD_SET_REG			(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x034)
106 #define LS7A_WD_TIMER_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x038)
107 #define LS7A_THSENS_CNT_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x04c)
108 #define LS7A_GEN_RTC_1_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x050)
109 #define LS7A_GEN_RTC_2_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x054)
110 #define LS7A_DPM_CFG_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x400)
111 #define LS7A_DPM_STS_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x404)
112 #define LS7A_DPM_CNT_REG		(volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x408)
113 
114 typedef enum {
115 	ACPI_PCI_HOTPLUG_STATUS	= 1 << 1,
116 	ACPI_CPU_HOTPLUG_STATUS	= 1 << 2,
117 	ACPI_MEM_HOTPLUG_STATUS	= 1 << 3,
118 	ACPI_POWERBUTTON_STATUS	= 1 << 8,
119 	ACPI_RTC_WAKE_STATUS	= 1 << 10,
120 	ACPI_PCI_WAKE_STATUS	= 1 << 14,
121 	ACPI_ANY_WAKE_STATUS	= 1 << 15,
122 } AcpiEventStatusBits;
123 
124 #define HT1LO_OFFSET		0xe0000000000UL
125 
126 /* PCI Configuration Space Base */
127 #define MCFG_EXT_PCICFG_BASE		0xefe00000000UL
128 
129 /* REG ACCESS*/
130 #define ls7a_readb(addr)	(*(volatile unsigned char  *)TO_UNCACHE(addr))
131 #define ls7a_readw(addr)	(*(volatile unsigned short *)TO_UNCACHE(addr))
132 #define ls7a_readl(addr)	(*(volatile unsigned int   *)TO_UNCACHE(addr))
133 #define ls7a_readq(addr)	(*(volatile unsigned long  *)TO_UNCACHE(addr))
134 #define ls7a_writeb(val, addr)	*(volatile unsigned char  *)TO_UNCACHE(addr) = (val)
135 #define ls7a_writew(val, addr)	*(volatile unsigned short *)TO_UNCACHE(addr) = (val)
136 #define ls7a_writel(val, addr)	*(volatile unsigned int   *)TO_UNCACHE(addr) = (val)
137 #define ls7a_writeq(val, addr)	*(volatile unsigned long  *)TO_UNCACHE(addr) = (val)
138 
139 void enable_gpe_wakeup(void);
140 void enable_pci_wakeup(void);
141 
142 #endif /* __ASM_LOONGSON_H */
143