diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 6efd21f9c2..6e8dc00e6d 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -137,6 +137,7 @@ void arm_write_bootloader(const char *name,
                           const uint32_t *fixupcontext)
 {
     AddressSpace *as = arm_boot_address_space(cpu, info);
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     /* Fix up the specified bootloader fragment and write it into
      * guest memory using rom_add_blob_fixed(). fixupcontext is
      * an array giving the values to write in for the fixup types
@@ -173,7 +174,7 @@ void arm_write_bootloader(const char *name,
         default:
             abort();
         }
-        code[i] = tswap32(insn);
+        stl_endian_p(be, &code[i], insn);
     }
 
     assert((len * sizeof(uint32_t)) < BOOTLOADER_MAX_SIZE);
@@ -205,6 +206,7 @@ void arm_write_secure_board_setup_dummy_smc(ARMCPU *cpu,
                                             hwaddr mvbar_addr)
 {
     AddressSpace *as = arm_boot_address_space(cpu, info);
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     int n;
     uint32_t mvbar_blob[] = {
         /* mvbar_addr: secure monitor vectors
@@ -243,13 +245,13 @@ void arm_write_secure_board_setup_dummy_smc(ARMCPU *cpu,
           || (info->board_setup_addr + sizeof(board_setup_blob) <= mvbar_addr));
 
     for (n = 0; n < ARRAY_SIZE(mvbar_blob); n++) {
-        mvbar_blob[n] = tswap32(mvbar_blob[n]);
+        stl_endian_p(be, &mvbar_blob[n], mvbar_blob[n]);
     }
     rom_add_blob_fixed_as("board-setup-mvbar", mvbar_blob, sizeof(mvbar_blob),
                           mvbar_addr, as);
 
     for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
-        board_setup_blob[n] = tswap32(board_setup_blob[n]);
+        stl_endian_p(be, &board_setup_blob[n], board_setup_blob[n]);
     }
     rom_add_blob_fixed_as("board-setup", board_setup_blob,
                           sizeof(board_setup_blob), info->board_setup_addr, as);
diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index e3f1de2631..78e3fae3c1 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -23,7 +23,6 @@
 
 #include "qemu/osdep.h"
 #include "qapi/error.h"
-#include "exec/tswap.h"
 #include "cpu.h"
 #include "hw/cpu/a9mpcore.h"
 #include "hw/irq.h"
@@ -473,7 +472,7 @@ static const MemoryRegionOps exynos4210_chipid_and_omr_ops = {
 void exynos4210_write_secondary(ARMCPU *cpu,
         const struct arm_boot_info *info)
 {
-    int n;
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     uint32_t smpboot[] = {
         0xe59f3034, /* ldr r3, External gic_cpu_if */
         0xe59f2034, /* ldr r2, Internal gic_cpu_if */
@@ -496,8 +495,8 @@ void exynos4210_write_secondary(ARMCPU *cpu,
     };
     smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr;
     smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr;
-    for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
-        smpboot[n] = tswap32(smpboot[n]);
+    for (int n = 0; n < ARRAY_SIZE(smpboot); n++) {
+        stl_endian_p(be, &smpboot[n], smpboot[n]);
     }
     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
                        info->smp_loader_start);
diff --git a/hw/arm/npcm7xx.c b/hw/arm/npcm7xx.c
index cb7791301b..6afdbf1598 100644
--- a/hw/arm/npcm7xx.c
+++ b/hw/arm/npcm7xx.c
@@ -309,6 +309,7 @@ static const struct {
 static void npcm7xx_write_board_setup(ARMCPU *cpu,
                                       const struct arm_boot_info *info)
 {
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     uint32_t board_setup[] = {
         0xe59f0010,     /* ldr r0, clk_base_addr */
         0xe59f1010,     /* ldr r1, pllcon1_value */
@@ -323,7 +324,7 @@ static void npcm7xx_write_board_setup(ARMCPU *cpu,
     int i;
 
     for (i = 0; i < ARRAY_SIZE(board_setup); i++) {
-        board_setup[i] = tswap32(board_setup[i]);
+        stl_endian_p(be, &board_setup[i], board_setup[i]);
     }
     rom_add_blob_fixed("board-setup", board_setup, sizeof(board_setup),
                        info->board_setup_addr);
@@ -332,6 +333,7 @@ static void npcm7xx_write_board_setup(ARMCPU *cpu,
 static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
                                          const struct arm_boot_info *info)
 {
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     /*
      * The default smpboot stub halts the secondary CPU with a 'wfi'
      * instruction, but the arch/arm/mach-npcm/platsmp.c in the Linux kernel
@@ -353,7 +355,7 @@ static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
     int i;
 
     for (i = 0; i < ARRAY_SIZE(smpboot); i++) {
-        smpboot[i] = tswap32(smpboot[i]);
+        stl_endian_p(be, &smpboot[i], smpboot[i]);
     }
 
     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
index 37c234f5ab..0d6e246543 100644
--- a/hw/arm/xilinx_zynq.c
+++ b/hw/arm/xilinx_zynq.c
@@ -36,9 +36,9 @@
 #include "hw/qdev-clock.h"
 #include "sysemu/reset.h"
 #include "qom/object.h"
-#include "exec/tswap.h"
 #include "target/arm/cpu-qom.h"
 #include "qapi/visitor.h"
+#include "cpu.h"
 
 #define TYPE_ZYNQ_MACHINE MACHINE_TYPE_NAME("xilinx-zynq-a9")
 OBJECT_DECLARE_SIMPLE_TYPE(ZynqMachineState, ZYNQ_MACHINE)
@@ -97,6 +97,7 @@ struct ZynqMachineState {
 static void zynq_write_board_setup(ARMCPU *cpu,
                                    const struct arm_boot_info *info)
 {
+    bool be = arm_cpu_code_is_big_endian(&cpu->env);
     int n;
     uint32_t board_setup_blob[] = {
         0xe3a004f8, /* mov r0, #0xf8000000 */
@@ -106,7 +107,7 @@ static void zynq_write_board_setup(ARMCPU *cpu,
         0xe12fff1e, /* bx lr */
     };
     for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
-        board_setup_blob[n] = tswap32(board_setup_blob[n]);
+        stl_endian_p(be, &board_setup_blob[n], board_setup_blob[n]);
     }
     rom_add_blob_fixed("board-setup", board_setup_blob,
                        sizeof(board_setup_blob), BOARD_SETUP_ADDR);
