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Diffstat (limited to 'arch/arm/include/asm/global_data.h')
| -rw-r--r-- | arch/arm/include/asm/global_data.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h new file mode 100644 index 0000000..1774014 --- /dev/null +++ b/arch/arm/include/asm/global_data.h @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2002-2010 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#ifndef __ASM_GBL_DATA_H +#define __ASM_GBL_DATA_H + +/* Architecture-specific global data */ +struct arch_global_data { +#if defined(CONFIG_FSL_ESDHC) || defined(CONFIG_FSL_ESDHC_IMX) + u32 sdhc_clk; +#endif + +#if defined(CONFIG_U_QE) + u32 qe_clk; + u32 brg_clk; + uint mp_alloc_base; + uint mp_alloc_top; +#endif /* CONFIG_U_QE */ + +#ifdef CONFIG_AT91FAMILY + /* "static data" needed by at91's clock.c */ + unsigned long cpu_clk_rate_hz; + unsigned long main_clk_rate_hz; + unsigned long mck_rate_hz; + unsigned long plla_rate_hz; + unsigned long pllb_rate_hz; + unsigned long at91_pllb_usb_init; +#endif + /* "static data" needed by most of timer.c on ARM platforms */ + unsigned long timer_rate_hz; + unsigned int tbu; + unsigned int tbl; + unsigned long lastinc; + unsigned long long timer_reset_value; +#if !(CONFIG_IS_ENABLED(SYS_ICACHE_OFF) && CONFIG_IS_ENABLED(SYS_DCACHE_OFF)) + unsigned long tlb_addr; + unsigned long tlb_size; +#if defined(CONFIG_ARM64) + unsigned long tlb_fillptr; + unsigned long tlb_emerg; +#endif +#endif +#ifdef CONFIG_SYS_MEM_RESERVE_SECURE +#define MEM_RESERVE_SECURE_SECURED 0x1 +#define MEM_RESERVE_SECURE_MAINTAINED 0x2 +#define MEM_RESERVE_SECURE_ADDR_MASK (~0x3) + /* + * Secure memory addr + * This variable needs maintenance if the RAM base is not zero, + * or if RAM splits into non-consecutive banks. It also has a + * flag indicating the secure memory is marked as secure by MMU. + * Flags used: 0x1 secured + * 0x2 maintained + */ + phys_addr_t secure_ram; + unsigned long tlb_allocated; +#endif +#ifdef CONFIG_RESV_RAM + /* + * Reserved RAM for memory resident, eg. Management Complex (MC) + * driver which continues to run after U-Boot exits. + */ + phys_addr_t resv_ram; +#endif + +#ifdef CONFIG_ARCH_OMAP2PLUS + u32 omap_boot_device; + u32 omap_boot_mode; + u8 omap_ch_flags; +#endif +#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR) + unsigned long mem2_clk; +#endif + +#ifdef CONFIG_ARCH_IMX8 + struct udevice *scu_dev; +#endif +}; + +#include <asm-generic/global_data.h> + +#ifdef __clang__ + +#define DECLARE_GLOBAL_DATA_PTR +#define gd get_gd() + +static inline gd_t *get_gd(void) +{ + gd_t *gd_ptr; + +#ifdef CONFIG_ARM64 + /* + * Make will already error that reserving x18 is not supported at the + * time of writing, clang: error: unknown argument: '-ffixed-x18' + */ + __asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr)); +#else + __asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr)); +#endif + + return gd_ptr; +} + +#else + +#ifdef CONFIG_ARM64 +#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18") +#else +#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9") +#endif +#endif + +#endif /* __ASM_GBL_DATA_H */ |