1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2012 Samsung Electronics 4 * Donghwa Lee <dh09.lee@samsung.com> 5 */ 6 7 #ifndef __ASM_ARM_ARCH_SYSTEM_H_ 8 #define __ASM_ARM_ARCH_SYSTEM_H_ 9 10 #ifndef __ASSEMBLY__ 11 struct exynos4_sysreg { 12 unsigned char res1[0x210]; 13 unsigned int display_ctrl; 14 unsigned int display_ctrl2; 15 unsigned int camera_control; 16 unsigned int audio_endian; 17 unsigned int jtag_con; 18 }; 19 20 struct exynos5_sysreg { 21 unsigned char res1[0x214]; 22 unsigned int disp1blk_cfg; 23 unsigned int disp2blk_cfg; 24 unsigned int hdcp_e_fuse; 25 unsigned int gsclblk_cfg0; 26 unsigned int gsclblk_cfg1; 27 unsigned int reserved; 28 unsigned int ispblk_cfg; 29 unsigned int usb20phy_cfg; 30 unsigned char res2[0x29c]; 31 unsigned int mipi_dphy; 32 unsigned int dptx_dphy; 33 unsigned int phyclk_sel; 34 }; 35 #endif 36 37 #define USB20_PHY_CFG_HOST_LINK_EN (1 << 0) 38 39 /* 40 * This instruction causes an event to be signaled to all cores 41 * within a multiprocessor system. If SEV is implemented, 42 * WFE must also be implemented. 43 */ 44 #define sev() __asm__ __volatile__ ("sev\n\t" : : ); 45 /* 46 * If the Event Register is not set, WFE suspends execution until 47 * one of the following events occurs: 48 * - an IRQ interrupt, unless masked by the CPSR I-bit 49 * - an FIQ interrupt, unless masked by the CPSR F-bit 50 * - an Imprecise Data abort, unless masked by the CPSR A-bit 51 * - a Debug Entry request, if Debug is enabled 52 * - an Event signaled by another processor using the SEV instruction. 53 * If the Event Register is set, WFE clears it and returns immediately. 54 * If WFE is implemented, SEV must also be implemented. 55 */ 56 #define wfe() __asm__ __volatile__ ("wfe\n\t" : : ); 57 58 /* Move 0xd3 value to CPSR register to enable SVC mode */ 59 #define svc32_mode_en() __asm__ __volatile__ \ 60 ("@ I&F disable, Mode: 0x13 - SVC\n\t" \ 61 "msr cpsr_c, #0x13|0xC0\n\t" : : ) 62 63 /* Set program counter with the given value */ 64 #define set_pc(x) __asm__ __volatile__ ("mov pc, %0\n\t" : : "r"(x)) 65 66 /* Branch to the given location */ 67 #define branch_bx(x) __asm__ __volatile__ ("bx %0\n\t" : : "r"(x)) 68 69 /* Read Main Id register */ 70 #define mrc_midr(x) __asm__ __volatile__ \ 71 ("mrc p15, 0, %0, c0, c0, 0\n\t" : "=r"(x) : ) 72 73 /* Read Multiprocessor Affinity Register */ 74 #define mrc_mpafr(x) __asm__ __volatile__ \ 75 ("mrc p15, 0, %0, c0, c0, 5\n\t" : "=r"(x) : ) 76 77 /* Read System Control Register */ 78 #define mrc_sctlr(x) __asm__ __volatile__ \ 79 ("mrc p15, 0, %0, c1, c0, 0\n\t" : "=r"(x) : ) 80 81 /* Read Auxiliary Control Register */ 82 #define mrc_auxr(x) __asm__ __volatile__ \ 83 ("mrc p15, 0, %0, c1, c0, 1\n\t" : "=r"(x) : ) 84 85 /* Read L2 Control register */ 86 #define mrc_l2_ctlr(x) __asm__ __volatile__ \ 87 ("mrc p15, 1, %0, c9, c0, 2\n\t" : "=r"(x) : ) 88 89 /* Read L2 Auxilliary Control register */ 90 #define mrc_l2_aux_ctlr(x) __asm__ __volatile__ \ 91 ("mrc p15, 1, %0, c15, c0, 0\n\t" : "=r"(x) : ) 92 93 /* Write System Control Register */ 94 #define mcr_sctlr(x) __asm__ __volatile__ \ 95 ("mcr p15, 0, %0, c1, c0, 0\n\t" : : "r"(x)) 96 97 /* Write Auxiliary Control Register */ 98 #define mcr_auxr(x) __asm__ __volatile__ \ 99 ("mcr p15, 0, %0, c1, c0, 1\n\t" : : "r"(x)) 100 101 /* Invalidate all instruction caches to PoU */ 102 #define mcr_icache(x) __asm__ __volatile__ \ 103 ("mcr p15, 0, %0, c7, c5, 0\n\t" : : "r"(x)) 104 105 /* Invalidate unified TLB */ 106 #define mcr_tlb(x) __asm__ __volatile__ \ 107 ("mcr p15, 0, %0, c8, c7, 0\n\t" : : "r"(x)) 108 109 /* Write L2 Control register */ 110 #define mcr_l2_ctlr(x) __asm__ __volatile__ \ 111 ("mcr p15, 1, %0, c9, c0, 2\n\t" : : "r"(x)) 112 113 /* Write L2 Auxilliary Control register */ 114 #define mcr_l2_aux_ctlr(x) __asm__ __volatile__ \ 115 ("mcr p15, 1, %0, c15, c0, 0\n\t" : : "r"(x)) 116 117 void set_usbhost_mode(unsigned int mode); 118 void set_system_display_ctrl(void); 119 int exynos_lcd_early_init(const void *blob); 120 121 #endif /* _EXYNOS4_SYSTEM_H */ 122