[people/ms/u-boot.git] / arch / arm / include / asm / global_data.h

/*
 * (C) Copyright 2002-2010
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef	__ASM_GBL_DATA_H
#define __ASM_GBL_DATA_H

/* Architecture-specific global data */
struct arch_global_data {
#if defined(CONFIG_FSL_ESDHC)
	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 long tbu;
	unsigned long tbl;
	unsigned long lastinc;
	unsigned long long timer_reset_value;
#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_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_OMAP2
	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
};

#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 */
Commit	Line	Data
0157cedb	1	/*
91a76751	2	* (C) Copyright 2002-2010
0157cedb WD	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
0157cedb WD	4	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
0157cedb WD	6	*/
	7
	8	#ifndef __ASM_GBL_DATA_H
	9	#define __ASM_GBL_DATA_H
5cb48582 SG	10
	11	/* Architecture-specific global data */
	12	struct arch_global_data {
e9adeca3 SG	13	#if defined(CONFIG_FSL_ESDHC)
	14	u32 sdhc_clk;
	15	#endif
93d33204 ZQ	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
f47e6ecd SG	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
b339051c SG	33	/* "static data" needed by most of timer.c on ARM platforms */
b339051c SG	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;
34fd5d25 SG	39	#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
34fd5d25 SG	40	unsigned long tlb_addr;
5e2ec773	41	unsigned long tlb_size;
7985cdf7	42	#if defined(CONFIG_ARM64)
5e2ec773 AG	43	unsigned long tlb_fillptr;
5e2ec773 AG	44	unsigned long tlb_emerg;
94f7ff36	45	#endif
34fd5d25	46	#endif
e61a7534 YS	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
f2ccf7f7 YS	62	#ifdef CONFIG_RESV_RAM
	63	/*
	64	* Reserved RAM for memory resident, eg. Management Complex (MC)
	65	* driver which continues to run after U-Boot exits.
	66	*/
	67	phys_addr_t resv_ram;
	68	#endif
fda06812	69
187f9dc3	70	#ifdef CONFIG_ARCH_OMAP2
60c7c30a PK	71	u32 omap_boot_device;
	72	u32 omap_boot_mode;
	73	u8 omap_ch_flags;
fda06812	74	#endif
44937214	75	#if defined(CONFIG_FSL_LSCH3) && defined(CONFIG_SYS_FSL_HAS_DP_DDR)
b87e6f88 YS	76	unsigned long mem2_clk;
b87e6f88 YS	77	#endif
5cb48582 SG	78	};
5cb48582 SG	79
baa1e536	80	#include <asm-generic/global_data.h>
0157cedb	81
c65a2abb JH	82	#ifdef __clang__
	83
	84	#define DECLARE_GLOBAL_DATA_PTR
	85	#define gd get_gd()
	86
	87	static inline gd_t *get_gd(void)
	88	{
	89	gd_t *gd_ptr;
	90
	91	#ifdef CONFIG_ARM64
	92	/*
	93	* Make will already error that reserving x18 is not supported at the
	94	* time of writing, clang: error: unknown argument: '-ffixed-x18'
	95	*/
	96	__asm__ volatile("mov %0, x18\n" : "=r" (gd_ptr));
	97	#else
	98	__asm__ volatile("mov %0, r9\n" : "=r" (gd_ptr));
	99	#endif
	100
	101	return gd_ptr;
	102	}
	103
	104	#else
	105
0ae76531 DF	106	#ifdef CONFIG_ARM64
	107	#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("x18")
	108	#else
	109	#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
	110	#endif
c65a2abb	111	#endif
0157cedb WD	112
0157cedb WD	113	#endif /* __ASM_GBL_DATA_H */