LXR uboot/arch/arm/mach-mvebu/lowlevel

   1/*
   2 * SPDX-License-Identifier:     GPL-2.0+
   3 */
   4
   5#include <config.h>
   6#include <linux/linkage.h>
   7
   8ENTRY(save_boot_params)
   9        stmfd   sp!, {r0 - r12, lr}     /* @ save registers on stack */
  10        ldr     r12, =CONFIG_SPL_BOOTROM_SAVE
  11        str     sp, [r12]
  12        b       save_boot_params_ret
  13ENDPROC(save_boot_params)
  14
  15ENTRY(return_to_bootrom)
  16        ldr     r12, =CONFIG_SPL_BOOTROM_SAVE
  17        ldr     sp, [r12]
  18        mov     r0, #0x0                /* @ return value: 0x0 NO_ERR */
  19        ldmfd   sp!, {r0 - r12, pc}     /* @ restore regs and return */
  20ENDPROC(return_to_bootrom)
  21
  22/*
  23 * cache_inv - invalidate Cache line
  24 * r0 - dest
  25 */
  26        .global cache_inv
  27        .type  cache_inv, %function
  28        cache_inv:
  29
  30        stmfd   sp!, {r1-r12}
  31
  32        mcr     p15, 0, r0, c7, c6, 1
  33
  34        ldmfd   sp!, {r1-r12}
  35        bx      lr
  36
  37
  38/*
  39 * flush_l1_v6 - l1 cache clean invalidate
  40 * r0 - dest
  41 */
  42        .global flush_l1_v6
  43        .type   flush_l1_v6, %function
  44        flush_l1_v6:
  45
  46        stmfd   sp!, {r1-r12}
  47
  48        mcr     p15, 0, r0, c7, c10, 5  /* @ data memory barrier */
  49        mcr     p15, 0, r0, c7, c14, 1  /* @ clean & invalidate D line */
  50        mcr     p15, 0, r0, c7, c10, 4  /* @ data sync barrier */
  51
  52        ldmfd   sp!, {r1-r12}
  53        bx      lr
  54
  55
  56/*
  57 * flush_l1_v7 - l1 cache clean invalidate
  58 * r0 - dest
  59 */
  60        .global flush_l1_v7
  61        .type   flush_l1_v7, %function
  62        flush_l1_v7:
  63
  64        stmfd   sp!, {r1-r12}
  65
  66        dmb                             /* @data memory barrier */
  67        mcr     p15, 0, r0, c7, c14, 1  /* @ clean & invalidate D line */
  68        dsb                             /* @data sync barrier */
  69
  70        ldmfd   sp!, {r1-r12}
  71        bx      lr
  72