diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/arm_boot.c | 17 | ||||
| -rw-r--r-- | hw/exynos4210.c | 10 | ||||
| -rw-r--r-- | hw/highbank.c | 7 |
3 files changed, 26 insertions, 8 deletions
diff --git a/hw/arm_boot.c b/hw/arm_boot.c index 92e2cab476..ec3b8d5d12 100644 --- a/hw/arm_boot.c +++ b/hw/arm_boot.c @@ -44,11 +44,17 @@ static uint32_t bootloader[] = { * for an interprocessor interrupt and polling a configurable * location for the kernel secondary CPU entry point. */ +#define DSB_INSN 0xf57ff04f +#define CP15_DSB_INSN 0xee070f9a /* mcr cp15, 0, r0, c7, c10, 4 */ + static uint32_t smpboot[] = { - 0xe59f201c, /* ldr r2, gic_cpu_if */ - 0xe59f001c, /* ldr r0, startaddr */ + 0xe59f2028, /* ldr r2, gic_cpu_if */ + 0xe59f0028, /* ldr r0, startaddr */ 0xe3a01001, /* mov r1, #1 */ - 0xe5821000, /* str r1, [r2] */ + 0xe5821000, /* str r1, [r2] - set GICC_CTLR.Enable */ + 0xe3a010ff, /* mov r1, #0xff */ + 0xe5821004, /* str r1, [r2, 4] - set GIC_PMR.Priority to 0xff */ + DSB_INSN, /* dsb */ 0xe320f003, /* wfi */ 0xe5901000, /* ldr r1, [r0] */ 0xe1110001, /* tst r1, r1 */ @@ -65,6 +71,11 @@ static void default_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++) { + /* Replace DSB with the pre-v7 DSB if necessary. */ + if (!arm_feature(&cpu->env, ARM_FEATURE_V7) && + smpboot[n] == DSB_INSN) { + smpboot[n] = CP15_DSB_INSN; + } smpboot[n] = tswap32(smpboot[n]); } rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), diff --git a/hw/exynos4210.c b/hw/exynos4210.c index 00d4db8871..22148cd946 100644 --- a/hw/exynos4210.c +++ b/hw/exynos4210.c @@ -80,12 +80,16 @@ void exynos4210_write_secondary(ARMCPU *cpu, { int n; uint32_t smpboot[] = { - 0xe59f3024, /* ldr r3, External gic_cpu_if */ - 0xe59f2024, /* ldr r2, Internal gic_cpu_if */ - 0xe59f0024, /* ldr r0, startaddr */ + 0xe59f3034, /* ldr r3, External gic_cpu_if */ + 0xe59f2034, /* ldr r2, Internal gic_cpu_if */ + 0xe59f0034, /* ldr r0, startaddr */ 0xe3a01001, /* mov r1, #1 */ 0xe5821000, /* str r1, [r2] */ 0xe5831000, /* str r1, [r3] */ + 0xe3a010ff, /* mov r1, #0xff */ + 0xe5821004, /* str r1, [r2, #4] */ + 0xe5831004, /* str r1, [r3, #4] */ + 0xf57ff04f, /* dsb */ 0xe320f003, /* wfi */ 0xe5901000, /* ldr r1, [r0] */ 0xe1110001, /* tst r1, r1 */ diff --git a/hw/highbank.c b/hw/highbank.c index afbb005422..447e57d758 100644 --- a/hw/highbank.c +++ b/hw/highbank.c @@ -44,9 +44,12 @@ static void hb_write_secondary(ARMCPU *cpu, const struct arm_boot_info *info) 0xe210000f, /* ands r0, r0, #0x0f */ 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */ 0xe0830200, /* add r0, r3, r0, lsl #4 */ - 0xe59f2018, /* ldr r2, privbase */ + 0xe59f2024, /* ldr r2, privbase */ 0xe3a01001, /* mov r1, #1 */ - 0xe5821100, /* str r1, [r2, #256] */ + 0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */ + 0xe3a010ff, /* mov r1, #0xff */ + 0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */ + 0xf57ff04f, /* dsb */ 0xe320f003, /* wfi */ 0xe5901000, /* ldr r1, [r0] */ 0xe1110001, /* tst r1, r1 */ |