1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 3 #include <config.h> 4 #include <linux/linkage.h> 5 6 ENTRY(save_boot_params) 7 stmfd sp!, {r0 - r12, lr} /* @ save registers on stack */ 8 ldr r12, =CONFIG_SPL_BOOTROM_SAVE 9 str sp, [r12] 10 b save_boot_params_ret 11 ENDPROC(save_boot_params) 12 13 ENTRY(return_to_bootrom) 14 ldr r12, =CONFIG_SPL_BOOTROM_SAVE 15 ldr sp, [r12] 16 mov r0, #0x0 /* @ return value: 0x0 NO_ERR */ 17 ldmfd sp!, {r0 - r12, pc} /* @ restore regs and return */ 18 ENDPROC(return_to_bootrom) 19 20 /* 21 * cache_inv - invalidate Cache line 22 * r0 - dest 23 */ 24 .global cache_inv 25 .type cache_inv, %function 26 cache_inv: 27 28 stmfd sp!, {r1-r12} 29 30 mcr p15, 0, r0, c7, c6, 1 31 32 ldmfd sp!, {r1-r12} 33 bx lr 34 35 36 /* 37 * flush_l1_v6 - l1 cache clean invalidate 38 * r0 - dest 39 */ 40 .global flush_l1_v6 41 .type flush_l1_v6, %function 42 flush_l1_v6: 43 44 stmfd sp!, {r1-r12} 45 46 mcr p15, 0, r0, c7, c10, 5 /* @ data memory barrier */ 47 mcr p15, 0, r0, c7, c14, 1 /* @ clean & invalidate D line */ 48 mcr p15, 0, r0, c7, c10, 4 /* @ data sync barrier */ 49 50 ldmfd sp!, {r1-r12} 51 bx lr 52 53 54 /* 55 * flush_l1_v7 - l1 cache clean invalidate 56 * r0 - dest 57 */ 58 .global flush_l1_v7 59 .type flush_l1_v7, %function 60 flush_l1_v7: 61 62 stmfd sp!, {r1-r12} 63 64 dmb /* @data memory barrier */ 65 mcr p15, 0, r0, c7, c14, 1 /* @ clean & invalidate D line */ 66 dsb /* @data sync barrier */ 67 68 ldmfd sp!, {r1-r12} 69 bx lr 70
