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armv8: New MMU setup code allowing to use 48+ bits PA/VA
[people/ms/u-boot.git] / arch / arm / include / asm / global_data.h
CommitLineData
0157cedb 1/*
91a76751 2 * (C) Copyright 2002-2010
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3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
1a459660 5 * SPDX-License-Identifier: GPL-2.0+
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6 */
7
8#ifndef __ASM_GBL_DATA_H
9#define __ASM_GBL_DATA_H
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10
11/* Architecture-specific global data */
12struct arch_global_data {
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13#if defined(CONFIG_FSL_ESDHC)
14 u32 sdhc_clk;
15#endif
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16
17#if defined(CONFIG_U_QE)
18 u32 qe_clk;
19 u32 brg_clk;
20 uint mp_alloc_base;
21 uint mp_alloc_top;
22#endif /* CONFIG_U_QE */
23
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24#ifdef CONFIG_AT91FAMILY
25 /* "static data" needed by at91's clock.c */
26 unsigned long cpu_clk_rate_hz;
27 unsigned long main_clk_rate_hz;
28 unsigned long mck_rate_hz;
29 unsigned long plla_rate_hz;
30 unsigned long pllb_rate_hz;
31 unsigned long at91_pllb_usb_init;
32#endif
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33 /* "static data" needed by most of timer.c on ARM platforms */
34 unsigned long timer_rate_hz;
8ff43b03 35 unsigned long tbu;
66ee6923 36 unsigned long tbl;
582601da 37 unsigned long lastinc;
5f70714c 38 unsigned long long timer_reset_value;
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39#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
40 unsigned long tlb_addr;
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41#if defined(CONFIG_SYS_FULL_VA)
42 unsigned long pmd_addr[CONFIG_SYS_PTL1_ENTRIES];
43#endif
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44 unsigned long tlb_size;
45#endif
fda06812 46
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47#ifdef CONFIG_OMAP_COMMON
48 u32 omap_boot_device;
49 u32 omap_boot_mode;
50 u8 omap_ch_flags;
fda06812 51#endif
44937214 52#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
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53 unsigned long mem2_clk;
54#endif
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55};
56
baa1e536 57#include <asm-generic/global_data.h>
0157cedb 58
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59#ifdef __clang__
60
61#define DECLARE_GLOBAL_DATA_PTR
62#define gd get_gd()
63
64static inline gd_t *get_gd(void)
65{
66 gd_t *gd_ptr;
67
68#ifdef CONFIG_ARM64
69 /*
70 * Make will already error that reserving x18 is not supported at the
71 * time of writing, clang: error: unknown argument: '-ffixed-x18'
72 */
73 __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
74#else
75 __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
76#endif
77
78 return gd_ptr;
79}
80
81#else
82
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83#ifdef CONFIG_ARM64
84#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
85#else
86#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
87#endif
c65a2abb 88#endif
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89
90#endif /* __ASM_GBL_DATA_H */