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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;
5e2ec773 41 unsigned long tlb_size;
7985cdf7 42#if defined(CONFIG_ARM64)
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43 unsigned long tlb_fillptr;
44 unsigned long tlb_emerg;
94f7ff36 45#endif
34fd5d25 46#endif
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47#ifdef CONFIG_SYS_MEM_RESERVE_SECURE
48#define MEM_RESERVE_SECURE_SECURED 0x1
49#define MEM_RESERVE_SECURE_MAINTAINED 0x2
50#define MEM_RESERVE_SECURE_ADDR_MASK (~0x3)
51 /*
52 * Secure memory addr
53 * This variable needs maintenance if the RAM base is not zero,
54 * or if RAM splits into non-consecutive banks. It also has a
55 * flag indicating the secure memory is marked as secure by MMU.
56 * Flags used: 0x1 secured
57 * 0x2 maintained
58 */
59 phys_addr_t secure_ram;
50e93b95 60 unsigned long tlb_allocated;
e61a7534 61#endif
fda06812 62
187f9dc3 63#ifdef CONFIG_ARCH_OMAP2
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64 u32 omap_boot_device;
65 u32 omap_boot_mode;
66 u8 omap_ch_flags;
fda06812 67#endif
44937214 68#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
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69 unsigned long mem2_clk;
70#endif
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71};
72
baa1e536 73#include <asm-generic/global_data.h>
0157cedb 74
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75#ifdef __clang__
76
77#define DECLARE_GLOBAL_DATA_PTR
78#define gd get_gd()
79
80static inline gd_t *get_gd(void)
81{
82 gd_t *gd_ptr;
83
84#ifdef CONFIG_ARM64
85 /*
86 * Make will already error that reserving x18 is not supported at the
87 * time of writing, clang: error: unknown argument: '-ffixed-x18'
88 */
89 __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
90#else
91 __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
92#endif
93
94 return gd_ptr;
95}
96
97#else
98
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99#ifdef CONFIG_ARM64
100#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
101#else
102#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
103#endif
c65a2abb 104#endif
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105
106#endif /* __ASM_GBL_DATA_H */