boot_param.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef __ASM_MACH_LOONGSON64_BOOT_PARAM_H_
  3#define __ASM_MACH_LOONGSON64_BOOT_PARAM_H_
  4
  5#include <linux/types.h>
  6
  7#define SYSTEM_RAM_LOW		1
  8#define SYSTEM_RAM_HIGH		2
  9#define SYSTEM_RAM_RESERVED	3
 10#define PCI_IO			4
 11#define PCI_MEM			5
 12#define LOONGSON_CFG_REG	6
 13#define VIDEO_ROM		7
 14#define ADAPTER_ROM		8
 15#define ACPI_TABLE		9
 16#define SMBIOS_TABLE		10
 17#define UMA_VIDEO_RAM		11
 18#define VUMA_VIDEO_RAM		12
 19#define MAX_MEMORY_TYPE		13
 20
 21#define MEM_SIZE_IS_IN_BYTES	(1 << 31)
 22
 23#define LOONGSON3_BOOT_MEM_MAP_MAX 128
 24struct efi_memory_map_loongson {
 25	u16 vers;	/* version of efi_memory_map */
 26	u32 nr_map;	/* number of memory_maps */
 27	u32 mem_freq;	/* memory frequence */
 28	struct mem_map {
 29		u32 node_id;	/* node_id which memory attached to */
 30		u32 mem_type;	/* system memory, pci memory, pci io, etc. */
 31		u64 mem_start;	/* memory map start address */
 32		u32 mem_size;	/* each memory_map size, not the total size */
 33	} map[LOONGSON3_BOOT_MEM_MAP_MAX];
 34} __packed;
 35
 36enum loongson_cpu_type {
 37	Legacy_2E = 0x0,
 38	Legacy_2F = 0x1,
 39	Legacy_3A = 0x2,
 40	Legacy_3B = 0x3,
 41	Legacy_1A = 0x4,
 42	Legacy_1B = 0x5,
 43	Legacy_2G = 0x6,
 44	Legacy_2H = 0x7,
 45	Legacy_2K = 0x8,
 46	Loongson_1A = 0x100,
 47	Loongson_1B = 0x101,
 48	Loongson_2E = 0x200,
 49	Loongson_2F = 0x201,
 50	Loongson_2G = 0x202,
 51	Loongson_2H = 0x203,
 52	Loongson_2K = 0x204,
 53	Loongson_3A = 0x300,
 54	Loongson_3B = 0x301
 55};
 56
 57/*
 58 * Capability and feature descriptor structure for MIPS CPU
 59 */
 60struct efi_cpuinfo_loongson {
 61	u16 vers;     /* version of efi_cpuinfo_loongson */
 62	u32 processor_id; /* PRID, e.g. 6305, 6306 */
 63	u32 cputype;  /* Loongson_3A/3B, etc. */
 64	u32 total_node;   /* num of total numa nodes */
 65	u16 cpu_startup_core_id; /* Boot core id */
 66	u16 reserved_cores_mask;
 67	u32 cpu_clock_freq; /* cpu_clock */
 68	u32 nr_cpus;
 69} __packed;
 70
 71#define MAX_UARTS 64
 72struct uart_device {
 73	u32 iotype; /* see include/linux/serial_core.h */
 74	u32 uartclk;
 75	u32 int_offset;
 76	u64 uart_base;
 77} __packed;
 78
 79#define MAX_SENSORS 64
 80#define SENSOR_TEMPER  0x00000001
 81#define SENSOR_VOLTAGE 0x00000002
 82#define SENSOR_FAN     0x00000004
 83struct sensor_device {
 84	char name[32];  /* a formal name */
 85	char label[64]; /* a flexible description */
 86	u32 type;       /* SENSOR_* */
 87	u32 id;         /* instance id of a sensor-class */
 88	u32 fan_policy; /* see loongson_hwmon.h */
 89	u32 fan_percent;/* only for constant speed policy */
 90	u64 base_addr;  /* base address of device registers */
 91} __packed;
 92
 93struct system_loongson {
 94	u16 vers;     /* version of system_loongson */
 95	u32 ccnuma_smp; /* 0: no numa; 1: has numa */
 96	u32 sing_double_channel; /* 1:single; 2:double */
 97	u32 nr_uarts;
 98	struct uart_device uarts[MAX_UARTS];
 99	u32 nr_sensors;
100	struct sensor_device sensors[MAX_SENSORS];
101	char has_ec;
102	char ec_name[32];
103	u64 ec_base_addr;
104	char has_tcm;
105	char tcm_name[32];
106	u64 tcm_base_addr;
107	u64 workarounds; /* see workarounds.h */
108} __packed;
109
110struct irq_source_routing_table {
111	u16 vers;
112	u16 size;
113	u16 rtr_bus;
114	u16 rtr_devfn;
115	u32 vendor;
116	u32 device;
117	u32 PIC_type;   /* conform use HT or PCI to route to CPU-PIC */
118	u64 ht_int_bit; /* 3A: 1<<24; 3B: 1<<16 */
119	u64 ht_enable;  /* irqs used in this PIC */
120	u32 node_id;    /* node id: 0x0-0; 0x1-1; 0x10-2; 0x11-3 */
121	u64 pci_mem_start_addr;
122	u64 pci_mem_end_addr;
123	u64 pci_io_start_addr;
124	u64 pci_io_end_addr;
125	u64 pci_config_addr;
126	u16 dma_mask_bits;
127	u16 dma_noncoherent;
128} __packed;
129
130struct interface_info {
131	u16 vers; /* version of the specification */
132	u16 size; /* size of this interface */
133	u8  flag; /* used or unused */
134	char description[64]; /* description for each change */
135} __packed;
136
137#define MAX_RESOURCE_NUMBER 128
138struct resource_loongson {
139	u64 start; /* resource start address */
140	u64 end;   /* resource end address */
141	char name[64];
142	u32 flags;
143};
144
145struct archdev_data {};  /* arch specific additions */
146
147struct board_devices {
148	char name[64];    /* hold the device name */
149	u32 num_resources; /* number of device_resource */
150	/* for each device's resource */
151	struct resource_loongson resource[MAX_RESOURCE_NUMBER];
152	/* arch specific additions */
153	struct archdev_data archdata;
154};
155
156struct loongson_special_attribute {
157	u16 vers;     /* version of this special */
158	char special_name[64]; /* special_atribute_name */
159	u32 loongson_special_type; /* type of special device */
160	/* for each device's resource */
161	struct resource_loongson resource[MAX_RESOURCE_NUMBER];
162};
163
164struct loongson_params {
165	u64 memory_offset;	/* efi_memory_map_loongson struct offset */
166	u64 cpu_offset;		/* efi_cpuinfo_loongson struct offset */
167	u64 system_offset;	/* system_loongson struct offset */
168	u64 irq_offset;		/* irq_source_routing_table struct offset */
169	u64 interface_offset;	/* interface_info struct offset */
170	u64 special_offset;	/* loongson_special_attribute struct offset */
171	u64 boarddev_table_offset;  /* board_devices offset */
172};
173
174struct smbios_tables {
175	u16 vers;     /* version of smbios */
176	u64 vga_bios; /* vga_bios address */
177	struct loongson_params lp;
178};
179
180struct efi_reset_system_t {
181	u64 ResetCold;
182	u64 ResetWarm;
183	u64 ResetType;
184	u64 Shutdown;
185	u64 DoSuspend; /* NULL if not support */
186};
187
188struct efi_loongson {
189	u64 mps;	/* MPS table */
190	u64 acpi;	/* ACPI table (IA64 ext 0.71) */
191	u64 acpi20;	/* ACPI table (ACPI 2.0) */
192	struct smbios_tables smbios;	/* SM BIOS table */
193	u64 sal_systab;	/* SAL system table */
194	u64 boot_info;	/* boot info table */
195};
196
197struct boot_params {
198	struct efi_loongson efi;
199	struct efi_reset_system_t reset_system;
200};
201
202enum loongson_bridge_type {
203	LS7A = 1,
204	RS780E = 2,
205	VIRTUAL = 3
206};
207
208extern struct efi_memory_map_loongson *loongson_memmap;
209extern struct loongson_system_configuration loongson_sysconf;
210
211extern struct board_devices *eboard;
212extern struct interface_info *einter;
213extern struct loongson_special_attribute *especial;
214
215extern u32 node_id_offset;
216extern void ls7a_early_config(void);
217extern void rs780e_early_config(void);
218extern void virtual_early_config(void);
219
220#endif