mirror of
https://github.com/smaeul/u-boot.git
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b18a3c183d
The sev() and wfe() asm macros are currently defined only for mach-exynos. As these are common Arm instructions, move them to the common asm/system.h header file, for both Armv7 and Armv8, so they can be used by other machines. wfe may theoretically trigger a context switch if an interrupt occurs so add a memory barrier to this call. Signed-off-by: Peter Hoyes <Peter.Hoyes@arm.com> Reviewed-by: Andre Przywara<andre.przywara@arm.com>
102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2012 Samsung Electronics
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* Donghwa Lee <dh09.lee@samsung.com>
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*/
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#ifndef __ASM_ARM_ARCH_SYSTEM_H_
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#define __ASM_ARM_ARCH_SYSTEM_H_
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#ifndef __ASSEMBLY__
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struct exynos4_sysreg {
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unsigned char res1[0x210];
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unsigned int display_ctrl;
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unsigned int display_ctrl2;
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unsigned int camera_control;
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unsigned int audio_endian;
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unsigned int jtag_con;
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};
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struct exynos5_sysreg {
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unsigned char res1[0x214];
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unsigned int disp1blk_cfg;
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unsigned int disp2blk_cfg;
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unsigned int hdcp_e_fuse;
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unsigned int gsclblk_cfg0;
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unsigned int gsclblk_cfg1;
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unsigned int reserved;
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unsigned int ispblk_cfg;
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unsigned int usb20phy_cfg;
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unsigned char res2[0x29c];
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unsigned int mipi_dphy;
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unsigned int dptx_dphy;
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unsigned int phyclk_sel;
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};
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#endif
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#define USB20_PHY_CFG_HOST_LINK_EN (1 << 0)
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/* Move 0xd3 value to CPSR register to enable SVC mode */
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#define svc32_mode_en() __asm__ __volatile__ \
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("@ I&F disable, Mode: 0x13 - SVC\n\t" \
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"msr cpsr_c, %0\n\t" : : "r"(0x13|0xC0))
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/* Set program counter with the given value */
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#define set_pc(x) __asm__ __volatile__ ("mov pc, %0\n\t" : : "r"(x))
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/* Branch to the given location */
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#define branch_bx(x) __asm__ __volatile__ ("bx %0\n\t" : : "r"(x))
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/* Read Main Id register */
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#define mrc_midr(x) __asm__ __volatile__ \
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("mrc p15, 0, %0, c0, c0, 0\n\t" : "=r"(x) : )
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/* Read Multiprocessor Affinity Register */
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#define mrc_mpafr(x) __asm__ __volatile__ \
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("mrc p15, 0, %0, c0, c0, 5\n\t" : "=r"(x) : )
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/* Read System Control Register */
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#define mrc_sctlr(x) __asm__ __volatile__ \
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("mrc p15, 0, %0, c1, c0, 0\n\t" : "=r"(x) : )
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/* Read Auxiliary Control Register */
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#define mrc_auxr(x) __asm__ __volatile__ \
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("mrc p15, 0, %0, c1, c0, 1\n\t" : "=r"(x) : )
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/* Read L2 Control register */
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#define mrc_l2_ctlr(x) __asm__ __volatile__ \
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("mrc p15, 1, %0, c9, c0, 2\n\t" : "=r"(x) : )
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/* Read L2 Auxilliary Control register */
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#define mrc_l2_aux_ctlr(x) __asm__ __volatile__ \
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("mrc p15, 1, %0, c15, c0, 0\n\t" : "=r"(x) : )
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/* Write System Control Register */
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#define mcr_sctlr(x) __asm__ __volatile__ \
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("mcr p15, 0, %0, c1, c0, 0\n\t" : : "r"(x))
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/* Write Auxiliary Control Register */
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#define mcr_auxr(x) __asm__ __volatile__ \
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("mcr p15, 0, %0, c1, c0, 1\n\t" : : "r"(x))
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/* Invalidate all instruction caches to PoU */
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#define mcr_icache(x) __asm__ __volatile__ \
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("mcr p15, 0, %0, c7, c5, 0\n\t" : : "r"(x))
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/* Invalidate unified TLB */
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#define mcr_tlb(x) __asm__ __volatile__ \
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("mcr p15, 0, %0, c8, c7, 0\n\t" : : "r"(x))
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/* Write L2 Control register */
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#define mcr_l2_ctlr(x) __asm__ __volatile__ \
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("mcr p15, 1, %0, c9, c0, 2\n\t" : : "r"(x))
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/* Write L2 Auxilliary Control register */
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#define mcr_l2_aux_ctlr(x) __asm__ __volatile__ \
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("mcr p15, 1, %0, c15, c0, 0\n\t" : : "r"(x))
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void set_usbhost_mode(unsigned int mode);
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void set_system_display_ctrl(void);
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#endif /* _EXYNOS4_SYSTEM_H */
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