2 * (C) Copyright 2002-2010
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
8 #ifndef __ASM_GBL_DATA_H
9 #define __ASM_GBL_DATA_H
11 /* Architecture-specific global data */
12 struct arch_global_data {
13 #if defined(CONFIG_FSL_ESDHC)
17 #if defined(CONFIG_U_QE)
22 #endif /* CONFIG_U_QE */
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;
33 /* "static data" needed by most of timer.c on ARM platforms */
34 unsigned long timer_rate_hz;
37 unsigned long lastinc;
38 unsigned long long timer_reset_value;
39 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
40 unsigned long tlb_addr;
41 unsigned long tlb_size;
44 #ifdef CONFIG_OMAP_COMMON
49 #if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
50 unsigned long mem2_clk;
54 #include <asm-generic/global_data.h>
58 #define DECLARE_GLOBAL_DATA_PTR
61 static inline gd_t *get_gd(void)
67 * Make will already error that reserving x18 is not supported at the
68 * time of writing, clang: error: unknown argument: '-ffixed-x18'
70 __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
72 __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
81 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
83 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
87 #endif /* __ASM_GBL_DATA_H */