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-rw-r--r--plat/allwinner/common/allwinner-common.mk14
-rw-r--r--plat/allwinner/common/include/platform_def.h17
-rw-r--r--plat/allwinner/common/sunxi_bl31_setup.c9
-rw-r--r--plat/allwinner/common/sunxi_common.c23
-rw-r--r--plat/allwinner/common/sunxi_pm.c194
-rw-r--r--plat/allwinner/common/sunxi_security.c21
6 files changed, 213 insertions, 65 deletions
diff --git a/plat/allwinner/common/allwinner-common.mk b/plat/allwinner/common/allwinner-common.mk
index 98bcf3e22..901d88895 100644
--- a/plat/allwinner/common/allwinner-common.mk
+++ b/plat/allwinner/common/allwinner-common.mk
@@ -5,6 +5,8 @@
#
include lib/xlat_tables_v2/xlat_tables.mk
+include lib/libfdt/libfdt.mk
+include drivers/arm/gic/v2/gicv2.mk
AW_PLAT := plat/allwinner
@@ -12,17 +14,15 @@ PLAT_INCLUDES := -Iinclude/plat/arm/common/aarch64 \
-I${AW_PLAT}/common/include \
-I${AW_PLAT}/${PLAT}/include
-include lib/libfdt/libfdt.mk
-
PLAT_BL_COMMON_SOURCES := drivers/ti/uart/${ARCH}/16550_console.S \
${XLAT_TABLES_LIB_SRCS} \
${AW_PLAT}/common/plat_helpers.S \
${AW_PLAT}/common/sunxi_common.c
BL31_SOURCES += drivers/allwinner/axp/common.c \
- drivers/arm/gic/common/gic_common.c \
- drivers/arm/gic/v2/gicv2_helpers.c \
- drivers/arm/gic/v2/gicv2_main.c \
+ drivers/allwinner/sunxi_msgbox.c \
+ drivers/arm/css/scpi/css_scpi.c \
+ ${GICV2_SOURCES} \
drivers/delay_timer/delay_timer.c \
drivers/delay_timer/generic_delay_timer.c \
lib/cpus/${ARCH}/cortex_a53.S \
@@ -48,6 +48,10 @@ ENABLE_SVE_FOR_NS := 0
ERRATA_A53_835769 := 1
ERRATA_A53_843419 := 1
ERRATA_A53_855873 := 1
+ERRATA_A53_1530924 := 1
+
+# The traditional U-Boot load address is 160MB into DRAM.
+PRELOADED_BL33_BASE ?= 0x4a000000
# The reset vector can be changed for each CPU.
PROGRAMMABLE_RESET_ADDRESS := 1
diff --git a/plat/allwinner/common/include/platform_def.h b/plat/allwinner/common/include/platform_def.h
index 32a7c0408..93720fff2 100644
--- a/plat/allwinner/common/include/platform_def.h
+++ b/plat/allwinner/common/include/platform_def.h
@@ -13,16 +13,18 @@
#include <sunxi_mmap.h>
-#define BL31_BASE SUNXI_SRAM_A2_BASE
-#define BL31_LIMIT (SUNXI_SRAM_A2_BASE + SUNXI_SRAM_A2_SIZE)
+#define BL31_BASE (SUNXI_SRAM_A2_BASE + 0x4000)
+#define BL31_LIMIT (SUNXI_SRAM_A2_BASE + \
+ SUNXI_SRAM_A2_SIZE - SUNXI_SCP_SIZE)
+
+/* The SCP firmware is allocated the last 16KiB of SRAM A2. */
+#define SUNXI_SCP_BASE BL31_LIMIT
+#define SUNXI_SCP_SIZE 0x4000
/* Overwrite U-Boot SPL, but reserve the first page for the SPL header. */
#define BL31_NOBITS_BASE (SUNXI_SRAM_A1_BASE + 0x1000)
#define BL31_NOBITS_LIMIT (SUNXI_SRAM_A1_BASE + SUNXI_SRAM_A1_SIZE)
-/* The traditional U-Boot load address is 160MB into DRAM, so at 0x4a000000 */
-#define PLAT_SUNXI_NS_IMAGE_OFFSET (SUNXI_DRAM_BASE + (160U << 20))
-
/* How much memory to reserve as secure for BL32, if configured */
#define SUNXI_DRAM_SEC_SIZE (32U << 20)
@@ -35,6 +37,9 @@
#define MAX_MMAP_REGIONS (3 + PLATFORM_MMAP_REGIONS)
#define MAX_XLAT_TABLES 1
+#define PLAT_CSS_SCP_COM_SHARED_MEM_BASE \
+ (SUNXI_SRAM_A2_BASE + SUNXI_SRAM_A2_SIZE - 0x200)
+
#define PLAT_MAX_PWR_LVL_STATES U(2)
#define PLAT_MAX_RET_STATE U(1)
#define PLAT_MAX_OFF_STATE U(2)
@@ -51,7 +56,7 @@
#define PLATFORM_CORE_COUNT (PLATFORM_CLUSTER_COUNT * \
PLATFORM_MAX_CPUS_PER_CLUSTER)
#define PLATFORM_MAX_CPUS_PER_CLUSTER U(4)
-#define PLATFORM_MMAP_REGIONS 4
+#define PLATFORM_MMAP_REGIONS 5
#define PLATFORM_STACK_SIZE (0x1000 / PLATFORM_CORE_COUNT)
#ifndef SPD_none
diff --git a/plat/allwinner/common/sunxi_bl31_setup.c b/plat/allwinner/common/sunxi_bl31_setup.c
index a24527c5d..b619b18ed 100644
--- a/plat/allwinner/common/sunxi_bl31_setup.c
+++ b/plat/allwinner/common/sunxi_bl31_setup.c
@@ -28,7 +28,7 @@
static entry_point_info_t bl32_image_ep_info;
static entry_point_info_t bl33_image_ep_info;
-static console_16550_t console;
+static console_t console;
static const gicv2_driver_data_t sunxi_gic_data = {
.gicd_base = SUNXI_GICD_BASE,
@@ -57,7 +57,7 @@ static void *sunxi_find_dtb(void)
for (i = 0; i < 2048 / sizeof(uint64_t); i++) {
uint32_t *dtb_base;
- if (u_boot_base[i] != PLAT_SUNXI_NS_IMAGE_OFFSET)
+ if (u_boot_base[i] != PRELOADED_BL33_BASE)
continue;
/* Does the suspected U-Boot size look anyhow reasonable? */
@@ -96,13 +96,10 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
* Tell BL31 where the non-trusted software image
* is located and the entry state information
*/
- bl33_image_ep_info.pc = plat_get_ns_image_entrypoint();
+ bl33_image_ep_info.pc = PRELOADED_BL33_BASE;
bl33_image_ep_info.spsr = SPSR_64(MODE_EL2, MODE_SP_ELX,
DISABLE_ALL_EXCEPTIONS);
SET_SECURITY_STATE(bl33_image_ep_info.h.attr, NON_SECURE);
-
- /* Turn off all secondary CPUs */
- sunxi_disable_secondary_cpus(read_mpidr());
}
void bl31_plat_arch_setup(void)
diff --git a/plat/allwinner/common/sunxi_common.c b/plat/allwinner/common/sunxi_common.c
index 3759c285e..5b536a043 100644
--- a/plat/allwinner/common/sunxi_common.c
+++ b/plat/allwinner/common/sunxi_common.c
@@ -21,11 +21,13 @@
static const mmap_region_t sunxi_mmap[PLATFORM_MMAP_REGIONS + 1] = {
MAP_REGION_FLAT(SUNXI_SRAM_BASE, SUNXI_SRAM_SIZE,
MT_RW_DATA | MT_SECURE),
+ MAP_REGION_FLAT(SUNXI_SCP_BASE, SUNXI_SCP_SIZE,
+ MT_DEVICE | MT_RW | MT_SECURE | MT_EXECUTE_NEVER),
MAP_REGION_FLAT(SUNXI_DEV_BASE, SUNXI_DEV_SIZE,
MT_DEVICE | MT_RW | MT_SECURE | MT_EXECUTE_NEVER),
MAP_REGION(SUNXI_DRAM_BASE, SUNXI_DRAM_VIRT_BASE, SUNXI_DRAM_SEC_SIZE,
MT_RW_DATA | MT_SECURE),
- MAP_REGION(PLAT_SUNXI_NS_IMAGE_OFFSET,
+ MAP_REGION(PRELOADED_BL33_BASE,
SUNXI_DRAM_VIRT_BASE + SUNXI_DRAM_SEC_SIZE,
SUNXI_DRAM_MAP_SIZE,
MT_RO_DATA | MT_NS),
@@ -37,15 +39,6 @@ unsigned int plat_get_syscnt_freq2(void)
return SUNXI_OSC24M_CLK_IN_HZ;
}
-uintptr_t plat_get_ns_image_entrypoint(void)
-{
-#ifdef PRELOADED_BL33_BASE
- return PRELOADED_BL33_BASE;
-#else
- return PLAT_SUNXI_NS_IMAGE_OFFSET;
-#endif
-}
-
void sunxi_configure_mmu_el3(int flags)
{
mmap_add_region(BL_CODE_BASE, BL_CODE_BASE,
@@ -123,11 +116,9 @@ int sunxi_init_platform_r_twi(uint16_t socid, bool use_rsb)
device_bit = BIT(6);
break;
case SUNXI_SOC_H6:
- if (use_rsb)
- return -ENODEV;
- pin_func = 0x33;
+ pin_func = use_rsb ? 0x22 : 0x33;
device_bit = BIT(16);
- reset_offset = 0x19c;
+ reset_offset = use_rsb ? 0x1bc : 0x19c;
break;
case SUNXI_SOC_A64:
pin_func = use_rsb ? 0x22 : 0x33;
@@ -155,7 +146,7 @@ int sunxi_init_platform_r_twi(uint16_t socid, bool use_rsb)
if (socid != SUNXI_SOC_H6)
mmio_setbits_32(SUNXI_R_PRCM_BASE + 0x28, device_bit);
else
- mmio_setbits_32(SUNXI_R_PRCM_BASE + 0x19c, device_bit | BIT(0));
+ mmio_setbits_32(SUNXI_R_PRCM_BASE + reset_offset, BIT(0));
/* assert, then de-assert reset of I2C/RSB controller */
mmio_clrbits_32(SUNXI_R_PRCM_BASE + reset_offset, device_bit);
@@ -175,7 +166,7 @@ DEFINE_BAKERY_LOCK(arisc_lock);
*/
void sunxi_execute_arisc_code(uint32_t *code, size_t size, uint16_t param)
{
- uintptr_t arisc_reset_vec = SUNXI_SRAM_A2_BASE - 0x4000 + 0x100;
+ uintptr_t arisc_reset_vec = SUNXI_SRAM_A2_BASE + 0x100;
do {
bakery_lock_get(&arisc_lock);
diff --git a/plat/allwinner/common/sunxi_pm.c b/plat/allwinner/common/sunxi_pm.c
index 9b074d2ac..aa80c528b 100644
--- a/plat/allwinner/common/sunxi_pm.c
+++ b/plat/allwinner/common/sunxi_pm.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -10,6 +10,7 @@
#include <arch_helpers.h>
#include <common/debug.h>
+#include <drivers/arm/css/css_scpi.h>
#include <drivers/arm/gicv2.h>
#include <drivers/delay_timer.h>
#include <lib/mmio.h>
@@ -17,6 +18,7 @@
#include <plat/common/platform.h>
#include <sunxi_cpucfg.h>
+#include <sunxi_def.h>
#include <sunxi_mmap.h>
#include <sunxi_private.h>
@@ -24,25 +26,83 @@
#define SUNXI_WDOG0_CFG_REG (SUNXI_R_WDOG_BASE + 0x0014)
#define SUNXI_WDOG0_MODE_REG (SUNXI_R_WDOG_BASE + 0x0018)
-#define mpidr_is_valid(mpidr) ( \
- MPIDR_AFFLVL3_VAL(mpidr) == 0 && \
- MPIDR_AFFLVL2_VAL(mpidr) == 0 && \
- MPIDR_AFFLVL1_VAL(mpidr) < PLATFORM_CLUSTER_COUNT && \
- MPIDR_AFFLVL0_VAL(mpidr) < PLATFORM_MAX_CPUS_PER_CLUSTER)
+#define CPU_PWR_LVL MPIDR_AFFLVL0
+#define CLUSTER_PWR_LVL MPIDR_AFFLVL1
+#define SYSTEM_PWR_LVL MPIDR_AFFLVL2
-static int sunxi_pwr_domain_on(u_register_t mpidr)
+#define CPU_PWR_STATE(state) \
+ ((state)->pwr_domain_state[CPU_PWR_LVL])
+#define CLUSTER_PWR_STATE(state) \
+ ((state)->pwr_domain_state[CLUSTER_PWR_LVL])
+#define SYSTEM_PWR_STATE(state) \
+ ((state)->pwr_domain_state[SYSTEM_PWR_LVL])
+
+/*
+ * The addresses for the SCP exception vectors are defined in the or1k
+ * architecture specification.
+ */
+#define OR1K_VEC_FIRST 0x01
+#define OR1K_VEC_LAST 0x0e
+#define OR1K_VEC_ADDR(n) (0x100 * (n))
+
+/*
+ * This magic value is the little-endian representation of the or1k
+ * instruction "l.mfspr r2, r0, 0x12", which is guaranteed to be the
+ * first instruction in the SCP firmware.
+ */
+#define SCP_FIRMWARE_MAGIC 0xb4400012
+
+static bool scpi_available;
+
+static inline scpi_power_state_t scpi_map_state(plat_local_state_t psci_state)
{
- if (mpidr_is_valid(mpidr) == 0)
- return PSCI_E_INTERN_FAIL;
+ if (is_local_state_run(psci_state))
+ return scpi_power_on;
+ if (is_local_state_retn(psci_state))
+ return scpi_power_retention;
+ return scpi_power_off;
+}
- sunxi_cpu_on(mpidr);
+static void sunxi_cpu_standby(plat_local_state_t cpu_state)
+{
+ u_register_t scr = read_scr_el3();
+
+ assert(is_local_state_retn(cpu_state));
+
+ write_scr_el3(scr | SCR_IRQ_BIT);
+ wfi();
+ write_scr_el3(scr);
+}
+
+static int sunxi_pwr_domain_on(u_register_t mpidr)
+{
+ if (scpi_available) {
+ scpi_set_css_power_state(mpidr,
+ scpi_power_on,
+ scpi_power_on,
+ scpi_power_on);
+ } else {
+ sunxi_cpu_on(mpidr);
+ }
return PSCI_E_SUCCESS;
}
static void sunxi_pwr_domain_off(const psci_power_state_t *target_state)
{
- gicv2_cpuif_disable();
+ plat_local_state_t cpu_pwr_state = CPU_PWR_STATE(target_state);
+ plat_local_state_t cluster_pwr_state = CLUSTER_PWR_STATE(target_state);
+ plat_local_state_t system_pwr_state = SYSTEM_PWR_STATE(target_state);
+
+ if (is_local_state_off(cpu_pwr_state))
+ gicv2_cpuif_disable();
+
+ if (scpi_available) {
+ scpi_set_css_power_state(read_mpidr(),
+ scpi_map_state(cpu_pwr_state),
+ scpi_map_state(cluster_pwr_state),
+ scpi_map_state(system_pwr_state));
+ }
}
static void __dead2 sunxi_pwr_down_wfi(const psci_power_state_t *target_state)
@@ -55,12 +115,26 @@ static void __dead2 sunxi_pwr_down_wfi(const psci_power_state_t *target_state)
static void sunxi_pwr_domain_on_finish(const psci_power_state_t *target_state)
{
- gicv2_pcpu_distif_init();
- gicv2_cpuif_enable();
+ if (is_local_state_off(SYSTEM_PWR_STATE(target_state)))
+ gicv2_distif_init();
+ if (is_local_state_off(CPU_PWR_STATE(target_state))) {
+ gicv2_pcpu_distif_init();
+ gicv2_cpuif_enable();
+ }
}
static void __dead2 sunxi_system_off(void)
{
+ gicv2_cpuif_disable();
+
+ if (scpi_available) {
+ /* Send the power down request to the SCP */
+ uint32_t ret = scpi_sys_power_state(scpi_system_shutdown);
+
+ if (ret != SCP_OK)
+ ERROR("PSCI: SCPI %s failed: %d\n", "shutdown", ret);
+ }
+
/* Turn off all secondary CPUs */
sunxi_disable_secondary_cpus(read_mpidr());
@@ -74,6 +148,16 @@ static void __dead2 sunxi_system_off(void)
static void __dead2 sunxi_system_reset(void)
{
+ gicv2_cpuif_disable();
+
+ if (scpi_available) {
+ /* Send the system reset request to the SCP */
+ uint32_t ret = scpi_sys_power_state(scpi_system_reboot);
+
+ if (ret != SCP_OK)
+ ERROR("PSCI: SCPI %s failed: %d\n", "reboot", ret);
+ }
+
/* Reset the whole system when the watchdog times out */
mmio_write_32(SUNXI_WDOG0_CFG_REG, 1);
/* Enable the watchdog with the shortest timeout (0.5 seconds) */
@@ -86,22 +170,66 @@ static void __dead2 sunxi_system_reset(void)
panic();
}
+static int sunxi_validate_power_state(unsigned int power_state,
+ psci_power_state_t *req_state)
+{
+ unsigned int power_level = psci_get_pstate_pwrlvl(power_state);
+ unsigned int type = psci_get_pstate_type(power_state);
+
+ assert(req_state != NULL);
+
+ if (power_level > PLAT_MAX_PWR_LVL)
+ return PSCI_E_INVALID_PARAMS;
+
+ if (type == PSTATE_TYPE_STANDBY) {
+ /* Only one retention power state is supported. */
+ if (psci_get_pstate_id(power_state) > 0)
+ return PSCI_E_INVALID_PARAMS;
+ /* The SoC cannot be suspended without losing state */
+ if (power_level == SYSTEM_PWR_LVL)
+ return PSCI_E_INVALID_PARAMS;
+ for (unsigned int i = 0; i <= power_level; ++i)
+ req_state->pwr_domain_state[i] = PLAT_MAX_RET_STATE;
+ } else {
+ /* Only one off power state is supported. */
+ if (psci_get_pstate_id(power_state) > 0)
+ return PSCI_E_INVALID_PARAMS;
+ for (unsigned int i = 0; i <= power_level; ++i)
+ req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
+ }
+ /* Higher power domain levels should all remain running */
+ for (unsigned int i = power_level + 1; i <= PLAT_MAX_PWR_LVL; ++i)
+ req_state->pwr_domain_state[i] = PSCI_LOCAL_STATE_RUN;
+
+ return PSCI_E_SUCCESS;
+}
+
static int sunxi_validate_ns_entrypoint(uintptr_t ns_entrypoint)
{
/* The non-secure entry point must be in DRAM */
- if (ns_entrypoint >= SUNXI_DRAM_BASE)
- return PSCI_E_SUCCESS;
+ if (ns_entrypoint < SUNXI_DRAM_BASE) {
+ return PSCI_E_INVALID_ADDRESS;
+ }
- return PSCI_E_INVALID_ADDRESS;
+ return PSCI_E_SUCCESS;
+}
+
+static void sunxi_get_sys_suspend_power_state(psci_power_state_t *req_state)
+{
+ assert(req_state);
+
+ for (unsigned int i = 0; i <= PLAT_MAX_PWR_LVL; ++i)
+ req_state->pwr_domain_state[i] = PLAT_MAX_OFF_STATE;
}
static plat_psci_ops_t sunxi_psci_ops = {
+ .cpu_standby = sunxi_cpu_standby,
.pwr_domain_on = sunxi_pwr_domain_on,
.pwr_domain_off = sunxi_pwr_domain_off,
- .pwr_domain_pwr_down_wfi = sunxi_pwr_down_wfi,
.pwr_domain_on_finish = sunxi_pwr_domain_on_finish,
.system_off = sunxi_system_off,
.system_reset = sunxi_system_reset,
+ .validate_power_state = sunxi_validate_power_state,
.validate_ns_entrypoint = sunxi_validate_ns_entrypoint,
};
@@ -110,13 +238,43 @@ int plat_setup_psci_ops(uintptr_t sec_entrypoint,
{
assert(psci_ops);
- for (int cpu = 0; cpu < PLATFORM_CORE_COUNT; cpu += 1) {
+ /* Program all CPU entry points. */
+ for (unsigned int cpu = 0; cpu < PLATFORM_CORE_COUNT; ++cpu) {
mmio_write_32(SUNXI_CPUCFG_RVBAR_LO_REG(cpu),
sec_entrypoint & 0xffffffff);
mmio_write_32(SUNXI_CPUCFG_RVBAR_HI_REG(cpu),
sec_entrypoint >> 32);
}
+ /* Check for a valid SCP firmware, and boot the SCP if found. */
+ if (mmio_read_32(SUNXI_SCP_BASE) == SCP_FIRMWARE_MAGIC) {
+ /* Program SCP exception vectors to the firmware entrypoint. */
+ for (unsigned int i = OR1K_VEC_FIRST; i <= OR1K_VEC_LAST; ++i) {
+ uint32_t vector = SUNXI_SRAM_A2_BASE + OR1K_VEC_ADDR(i);
+ uint32_t offset = SUNXI_SCP_BASE - vector;
+
+ mmio_write_32(vector, offset >> 2);
+ clean_dcache_range(vector, sizeof(uint32_t));
+ }
+ /* Take the SCP out of reset. */
+ mmio_setbits_32(SUNXI_R_CPUCFG_BASE, BIT(0));
+ /* Wait for the SCP firmware to boot. */
+ if (scpi_wait_ready() == 0)
+ scpi_available = true;
+ }
+
+ NOTICE("PSCI: System suspend is %s\n",
+ scpi_available ? "available via SCPI" : "unavailable");
+ if (scpi_available) {
+ /* Suspend is only available via SCPI. */
+ sunxi_psci_ops.pwr_domain_suspend = sunxi_pwr_domain_off;
+ sunxi_psci_ops.pwr_domain_suspend_finish = sunxi_pwr_domain_on_finish;
+ sunxi_psci_ops.get_sys_suspend_power_state = sunxi_get_sys_suspend_power_state;
+ } else {
+ /* This is only needed when SCPI is unavailable. */
+ sunxi_psci_ops.pwr_domain_pwr_down_wfi = sunxi_pwr_down_wfi;
+ }
+
*psci_ops = &sunxi_psci_ops;
return 0;
diff --git a/plat/allwinner/common/sunxi_security.c b/plat/allwinner/common/sunxi_security.c
index 1f16a0b72..98b91c39f 100644
--- a/plat/allwinner/common/sunxi_security.c
+++ b/plat/allwinner/common/sunxi_security.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2017-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -7,16 +7,11 @@
#include <common/debug.h>
#include <lib/mmio.h>
+#include <sunxi_ccu.h>
#include <sunxi_mmap.h>
#include <sunxi_private.h>
+#include <sunxi_spc.h>
-#ifdef SUNXI_SPC_BASE
-#define SPC_DECPORT_STA_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0x4)
-#define SPC_DECPORT_SET_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0x8)
-#define SPC_DECPORT_CLR_REG(p) (SUNXI_SPC_BASE + ((p) * 0x0c) + 0xc)
-#endif
-
-#define R_PRCM_SEC_SWITCH_REG 0x1d0
#define DMA_SEC_REG 0x20
/*
@@ -27,20 +22,18 @@
*/
void sunxi_security_setup(void)
{
-#ifdef SUNXI_SPC_BASE
int i;
INFO("Configuring SPC Controller\n");
/* SPC setup: set all devices to non-secure */
- for (i = 0; i < 6; i++)
- mmio_write_32(SPC_DECPORT_SET_REG(i), 0xff);
-#endif
+ for (i = 0; i < SUNXI_SPC_NUM_PORTS; i++)
+ mmio_write_32(SUNXI_SPC_DECPORT_SET_REG(i), 0xffffffff);
/* set MBUS clocks, bus clocks (AXI/AHB/APB) and PLLs to non-secure */
mmio_write_32(SUNXI_CCU_SEC_SWITCH_REG, 0x7);
- /* set R_PRCM clocks to non-secure */
- mmio_write_32(SUNXI_R_PRCM_BASE + R_PRCM_SEC_SWITCH_REG, 0x7);
+ /* Set R_PRCM bus clocks to non-secure */
+ mmio_write_32(SUNXI_R_PRCM_SEC_SWITCH_REG, 0x1);
/* Set all DMA channels (16 max.) to non-secure */
mmio_write_32(SUNXI_DMA_BASE + DMA_SEC_REG, 0xffff);
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-15 04:08:41 +0000