1 /* 2 * (C) Copyright 2002-2010 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __ASM_GBL_DATA_H 9 #define __ASM_GBL_DATA_H 10 11 /* Architecture-specific global data */ 12 struct arch_global_data { 13 #if defined(CONFIG_FSL_ESDHC) 14 u32 sdhc_clk; 15 #endif 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 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 33 /* "static data" needed by most of timer.c on ARM platforms */ 34 unsigned long timer_rate_hz; 35 unsigned int tbu; 36 unsigned int tbl; 37 unsigned long lastinc; 38 unsigned long long timer_reset_value; 39 #if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF) && \ 40 defined(CONFIG_SPL_SYS_DCACHE_OFF)) 41 unsigned long tlb_addr; 42 unsigned long tlb_size; 43 #if defined(CONFIG_ARM64) 44 unsigned long tlb_fillptr; 45 unsigned long tlb_emerg; 46 #endif 47 #endif 48 #ifdef CONFIG_SYS_MEM_RESERVE_SECURE 49 #define MEM_RESERVE_SECURE_SECURED 0x1 50 #define MEM_RESERVE_SECURE_MAINTAINED 0x2 51 #define MEM_RESERVE_SECURE_ADDR_MASK (~0x3) 52 /* 53 * Secure memory addr 54 * This variable needs maintenance if the RAM base is not zero, 55 * or if RAM splits into non-consecutive banks. It also has a 56 * flag indicating the secure memory is marked as secure by MMU. 57 * Flags used: 0x1 secured 58 * 0x2 maintained 59 */ 60 phys_addr_t secure_ram; 61 unsigned long tlb_allocated; 62 #endif 63 #ifdef CONFIG_RESV_RAM 64 /* 65 * Reserved RAM for memory resident, eg. Management Complex (MC) 66 * driver which continues to run after U-Boot exits. 67 */ 68 phys_addr_t resv_ram; 69 #endif 70 71 #ifdef CONFIG_ARCH_OMAP2PLUS 72 u32 omap_boot_device; 73 u32 omap_boot_mode; 74 u8 omap_ch_flags; 75 #endif 76 #if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR) 77 unsigned long mem2_clk; 78 #endif 79 }; 80 81 #include <asm-generic/global_data.h> 82 83 #ifdef __clang__ 84 85 #define DECLARE_GLOBAL_DATA_PTR 86 #define gd get_gd() 87 get_gd(void)88static inline gd_t *get_gd(void) 89 { 90 gd_t *gd_ptr; 91 92 #ifdef CONFIG_ARM64 93 /* 94 * Make will already error that reserving x18 is not supported at the 95 * time of writing, clang: error: unknown argument: '-ffixed-x18' 96 */ 97 __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr)); 98 #else 99 __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr)); 100 #endif 101 102 return gd_ptr; 103 } 104 105 #else 106 107 #ifdef CONFIG_ARM64 108 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18") 109 #else 110 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9") 111 #endif 112 #endif 113 114 #endif /* __ASM_GBL_DATA_H */ 115