1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * (C) Copyright 2002-2010
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 #ifndef __ASM_GBL_DATA_H
8 #define __ASM_GBL_DATA_H
10 /* Architecture-specific global data */
11 struct arch_global_data {
12 #if defined(CONFIG_FSL_ESDHC) || defined(CONFIG_FSL_ESDHC_IMX)
16 #if defined(CONFIG_FSL_ESDHC)
20 #if defined(CONFIG_U_QE)
25 #endif /* CONFIG_U_QE */
27 #ifdef CONFIG_AT91FAMILY
28 /* "static data" needed by at91's clock.c */
29 unsigned long cpu_clk_rate_hz;
30 unsigned long main_clk_rate_hz;
31 unsigned long mck_rate_hz;
32 unsigned long plla_rate_hz;
33 unsigned long pllb_rate_hz;
34 unsigned long at91_pllb_usb_init;
36 /* "static data" needed by most of timer.c on ARM platforms */
37 unsigned long timer_rate_hz;
40 unsigned long lastinc;
41 unsigned long long timer_reset_value;
42 #if !(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF))
43 unsigned long tlb_addr;
44 unsigned long tlb_size;
45 #if defined(CONFIG_ARM64)
46 unsigned long tlb_fillptr;
47 unsigned long tlb_emerg;
50 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE
51 #define MEM_RESERVE_SECURE_SECURED 0x1
52 #define MEM_RESERVE_SECURE_MAINTAINED 0x2
53 #define MEM_RESERVE_SECURE_ADDR_MASK (~0x3)
56 * This variable needs maintenance if the RAM base is not zero,
57 * or if RAM splits into non-consecutive banks. It also has a
58 * flag indicating the secure memory is marked as secure by MMU.
59 * Flags used: 0x1 secured
62 phys_addr_t secure_ram;
63 unsigned long tlb_allocated;
65 #ifdef CONFIG_RESV_RAM
67 * Reserved RAM for memory resident, eg. Management Complex (MC)
68 * driver which continues to run after U-Boot exits.
73 #ifdef CONFIG_ARCH_OMAP2PLUS
78 #if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
79 unsigned long mem2_clk;
82 #ifdef CONFIG_ARCH_IMX8
83 struct udevice *scu_dev;
87 #include <asm-generic/global_data.h>
91 #define DECLARE_GLOBAL_DATA_PTR
94 static inline gd_t *get_gd(void)
100 * Make will already error that reserving x18 is not supported at the
101 * time of writing, clang: error: unknown argument: '-ffixed-x18'
103 __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
105 __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
114 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
116 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
120 static inline void set_gd(volatile gd_t *gd_ptr)
123 __asm__ volatile("ldr x18, %0\n" : : "m"(gd_ptr));
125 __asm__ volatile("ldr r9, %0\n" : : "m"(gd_ptr));
129 #endif /* __ASM_GBL_DATA_H */