aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/include/asm/global_data.h
blob: 452bcd1b8fd91d42f62f69e4a624d3c458320064 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * (C) Copyright 2002-2010
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 */

#ifndef	__ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H

#ifndef __ASSEMBLY__

#include <config.h>

#include <linux/types.h>

/* Architecture-specific global data */
struct arch_global_data {
#if defined(CONFIG_FSL_ESDHC) || defined(CONFIG_FSL_ESDHC_IMX)
	u32 sdhc_clk;
#endif
#if CONFIG_IS_ENABLED(ACPI)
	ulong table_start;		/* Start address of ACPI tables */
	ulong table_end;		/* End address of ACPI tables */
	ulong table_start_high;		/* Start address of high ACPI tables */
	ulong table_end_high;		/* End address of high ACPI tables */
#endif
#if defined(CONFIG_FSL_ESDHC)
	u32 sdhc_per_clk;
#endif

#if defined(CONFIG_U_QE)
	u32 qe_clk;
	u32 brg_clk;
	uint mp_alloc_base;
	uint mp_alloc_top;
#endif /* CONFIG_U_QE */

#ifdef CONFIG_AT91FAMILY
	/* "static data" needed by at91's clock.c */
	unsigned long	cpu_clk_rate_hz;
	unsigned long	main_clk_rate_hz;
	unsigned long	mck_rate_hz;
	unsigned long	plla_rate_hz;
	unsigned long	pllb_rate_hz;
	unsigned long	at91_pllb_usb_init;
#endif
	/* "static data" needed by most of timer.c on ARM platforms */
	unsigned long timer_rate_hz;
	unsigned int tbu;
	unsigned int tbl;
	unsigned long lastinc;
	unsigned long long timer_reset_value;
#if !(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
	unsigned long tlb_addr;
	unsigned long tlb_size;
#if defined(CONFIG_ARM64)
	unsigned long tlb_fillptr;
	unsigned long tlb_emerg;
#endif
#endif
#ifdef CFG_SYS_MEM_RESERVE_SECURE
#define MEM_RESERVE_SECURE_SECURED	0x1
#define MEM_RESERVE_SECURE_MAINTAINED	0x2
#define MEM_RESERVE_SECURE_ADDR_MASK	(~0x3)
	/*
	 * Secure memory addr
	 * This variable needs maintenance if the RAM base is not zero,
	 * or if RAM splits into non-consecutive banks. It also has a
	 * flag indicating the secure memory is marked as secure by MMU.
	 * Flags used: 0x1 secured
	 *             0x2 maintained
	 */
	phys_addr_t secure_ram;
	unsigned long tlb_allocated;
#endif
#ifdef CONFIG_RESV_RAM
	/*
	 * Reserved RAM for memory resident, eg. Management Complex (MC)
	 * driver which continues to run after U-Boot exits.
	 */
	phys_addr_t resv_ram;
#endif

#ifdef CONFIG_ARCH_OMAP2PLUS
	u32 omap_boot_device;
	u32 omap_boot_mode;
	u8 omap_ch_flags;
#endif
#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
	unsigned long mem2_clk;
#endif

#ifdef CONFIG_ARCH_IMX8
	struct udevice *scu_dev;
#endif

#ifdef CONFIG_IMX_ELE
	struct udevice *ele_dev;
	u32 soc_rev;
	u32 lifecycle;
	u32 uid[4];
#endif

#ifdef CONFIG_ARCH_IMX8ULP
	bool m33_handshake_done;
#endif
#ifdef CONFIG_SMBIOS
	ulong smbios_start;		/* Start address of SMBIOS table */
#endif
};

#include <asm-generic/global_data.h>

#if defined(__clang__) || defined(LTO_ENABLE)

#define DECLARE_GLOBAL_DATA_PTR
#define gd	get_gd()

static inline gd_t *get_gd(void)
{
	gd_t *gd_ptr;

#ifdef CONFIG_ARM64
	__asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
#else
	__asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
#endif

	return gd_ptr;
}

#else

#ifdef CONFIG_ARM64
#define DECLARE_GLOBAL_DATA_PTR		register volatile gd_t *gd asm ("x18")
#else
#define DECLARE_GLOBAL_DATA_PTR		register volatile gd_t *gd asm ("r9")
#endif
#endif

static inline void set_gd(volatile gd_t *gd_ptr)
{
#ifdef CONFIG_ARM64
	__asm__ volatile("ldr x18, %0\n" : : "m"(gd_ptr));
#elif __ARM_ARCH >= 7
	__asm__ volatile("ldr r9, %0\n" : : "m"(gd_ptr));
#else
	__asm__ volatile("mov r9, %0\n" : : "r"(gd_ptr));
#endif
}

#endif /* __ASSEMBLY__ */

#endif /* __ASM_GBL_DATA_H */