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authorManish Pandey <manish.pandey2@arm.com>2020-02-18 21:47:38 +0000
committerTrustedFirmware Code Review <review@review.trustedfirmware.org>2020-02-18 21:47:38 +0000
commit8a10c6c274b9c450fb84bb64901d11c47f4e06e1 (patch)
tree764e26f769630655776e1441c45a481ff6d61bf0
parent76ce1028b0e0ef27e3aede9ad0fe43ca5af2b6c5 (diff)
parent6aa138ded5e684894cd146fc1bb85df304529b46 (diff)
downloadtrusted-firmware-a-8a10c6c274b9c450fb84bb64901d11c47f4e06e1.tar.gz
Merge changes from topic "corstone700" into integration
* changes: corstone700: set UART clocks to 32MHz corstone700: clean-up as per coding style guide Corstone700: add support for mhuv2 in arm TF-A
-rw-r--r--fdts/corstone700.dts17
-rw-r--r--plat/arm/board/corstone700/corstone700_plat.c5
-rw-r--r--plat/arm/board/corstone700/corstone700_topology.c6
-rw-r--r--plat/arm/board/corstone700/drivers/mhu/mhu.c117
-rw-r--r--plat/arm/board/corstone700/drivers/mhu/mhu.h37
-rw-r--r--plat/arm/board/corstone700/include/platform_def.h105
-rw-r--r--plat/arm/board/corstone700/platform.mk17
7 files changed, 245 insertions, 59 deletions
diff --git a/fdts/corstone700.dts b/fdts/corstone700.dts
index 16cf41227..8c3bd0c05 100644
--- a/fdts/corstone700.dts
+++ b/fdts/corstone700.dts
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -68,14 +68,21 @@
clock-output-names = "smclk";
};
+ uartclk: uartclk {
+ /* UART clock - 32MHz */
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <32000000>;
+ clock-output-names = "uartclk";
+ };
serial0: uart@1a510000 {
compatible = "arm,pl011", "arm,primecell";
reg = <0x1a510000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 19 4>;
- clocks = <&refclk100mhz>, <&smbclk>;
- clock-names = "apb_pclk", "smclk";
+ clocks = <&uartclk>, <&refclk100mhz>;
+ clock-names = "uartclk", "apb_pclk";
};
serial1: uart@1a520000 {
@@ -83,8 +90,8 @@
reg = <0x1a520000 0x1000>;
interrupt-parent = <&gic>;
interrupts = <0 20 4>;
- clocks = <&refclk100mhz>, <&smbclk>;
- clock-names = "apb_pclk", "smclk";
+ clocks = <&uartclk>, <&refclk100mhz>;
+ clock-names = "uartclk", "apb_pclk";
};
timer {
diff --git a/plat/arm/board/corstone700/corstone700_plat.c b/plat/arm/board/corstone700/corstone700_plat.c
index cee6fd618..e2ade7098 100644
--- a/plat/arm/board/corstone700/corstone700_plat.c
+++ b/plat/arm/board/corstone700/corstone700_plat.c
@@ -1,10 +1,12 @@
/*
- * Copyright (c) 2019, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <common/bl_common.h>
+
+#include <mhu.h>
#include <plat/arm/common/plat_arm.h>
#include <plat/common/platform.h>
#include <platform_def.h>
@@ -26,6 +28,7 @@ const mmap_region_t plat_arm_mmap[] = {
*/
void __init plat_arm_pwrc_setup(void)
{
+ mhu_secure_init();
}
unsigned int plat_get_syscnt_freq2(void)
diff --git a/plat/arm/board/corstone700/corstone700_topology.c b/plat/arm/board/corstone700/corstone700_topology.c
index d9445e0c5..904f5ab3a 100644
--- a/plat/arm/board/corstone700/corstone700_topology.c
+++ b/plat/arm/board/corstone700/corstone700_topology.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -8,8 +8,8 @@
#include <plat/common/platform.h>
/* The Corstone700 power domain tree descriptor */
-static unsigned char corstone700_power_domain_tree_desc
- [PLAT_ARM_CLUSTER_COUNT + 2];
+static unsigned char corstone700_power_domain_tree_desc[PLAT_ARM_CLUSTER_COUNT
+ + 2];
/*******************************************************************************
* This function dynamically constructs the topology according to
* CLUSTER_COUNT and returns it.
diff --git a/plat/arm/board/corstone700/drivers/mhu/mhu.c b/plat/arm/board/corstone700/drivers/mhu/mhu.c
new file mode 100644
index 000000000..2231d1173
--- /dev/null
+++ b/plat/arm/board/corstone700/drivers/mhu/mhu.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <drivers/delay_timer.h>
+#include <lib/bakery_lock.h>
+#include <lib/mmio.h>
+
+#include "mhu.h"
+#include <plat_arm.h>
+#include <platform_def.h>
+
+ARM_INSTANTIATE_LOCK;
+
+#pragma weak plat_arm_pwrc_setup
+
+/*
+ * Slot 31 is reserved because the MHU hardware uses this register bit to
+ * indicate a non-secure access attempt. The total number of available slots is
+ * therefore 31 [30:0].
+ */
+#define MHU_MAX_SLOT_ID 30
+
+void mhu_secure_message_start(uintptr_t address, unsigned int slot_id)
+{
+ unsigned int intr_stat_check;
+ uint64_t timeout_cnt;
+ volatile uint8_t expiration;
+
+ assert(slot_id <= MHU_MAX_SLOT_ID);
+ arm_lock_get();
+
+ /*
+ * Make sure any previous command has finished
+ * and polling timeout not expired
+ */
+
+ timeout_cnt = timeout_init_us(MHU_POLL_INTR_STAT_TIMEOUT);
+
+ do {
+ intr_stat_check = (mmio_read_32(address + CPU_INTR_S_STAT) &
+ (1 << slot_id));
+
+ expiration = timeout_elapsed(timeout_cnt);
+
+ } while ((intr_stat_check != 0U) && (expiration == 0U));
+
+ /*
+ * Note: No risk of timer overflows while waiting
+ * for the timeout expiration.
+ * According to Armv8 TRM: System counter roll-over
+ * time of not less than 40 years
+ */
+}
+
+void mhu_secure_message_send(uintptr_t address,
+ unsigned int slot_id,
+ unsigned int message)
+{
+ unsigned char access_ready;
+ uint64_t timeout_cnt;
+ volatile uint8_t expiration;
+
+ assert(slot_id <= MHU_MAX_SLOT_ID);
+ assert((mmio_read_32(address + CPU_INTR_S_STAT) &
+ (1 << slot_id)) == 0U);
+
+ MHU_V2_ACCESS_REQUEST(address);
+
+ timeout_cnt = timeout_init_us(MHU_POLL_INTR_STAT_TIMEOUT);
+
+ do {
+ access_ready = MHU_V2_IS_ACCESS_READY(address);
+ expiration = timeout_elapsed(timeout_cnt);
+
+ } while ((access_ready == 0U) && (expiration == 0U));
+
+ /*
+ * Note: No risk of timer overflows while waiting
+ * for the timeout expiration.
+ * According to Armv8 TRM: System counter roll-over
+ * time of not less than 40 years
+ */
+
+ mmio_write_32(address + CPU_INTR_S_SET, message);
+}
+
+void mhu_secure_message_end(uintptr_t address, unsigned int slot_id)
+{
+ assert(slot_id <= MHU_MAX_SLOT_ID);
+ /*
+ * Clear any response we got by writing one in the relevant slot bit to
+ * the CLEAR register
+ */
+ MHU_V2_CLEAR_REQUEST(address);
+
+ arm_lock_release();
+}
+
+void __init mhu_secure_init(void)
+{
+ arm_lock_init();
+
+ /*
+ * The STAT register resets to zero. Ensure it is in the expected state,
+ * as a stale or garbage value would make us think it's a message we've
+ * already sent.
+ */
+
+ assert(mmio_read_32(PLAT_SDK700_MHU0_SEND + CPU_INTR_S_STAT) == 0);
+}
diff --git a/plat/arm/board/corstone700/drivers/mhu/mhu.h b/plat/arm/board/corstone700/drivers/mhu/mhu.h
new file mode 100644
index 000000000..3808746e9
--- /dev/null
+++ b/plat/arm/board/corstone700/drivers/mhu/mhu.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef MHU_H
+#define MHU_H
+
+#define MHU_POLL_INTR_STAT_TIMEOUT 50000 /*timeout value in us*/
+
+/* CPU MHU secure channel registers */
+#define CPU_INTR_S_STAT 0x00
+#define CPU_INTR_S_SET 0x0C
+
+/* MHUv2 Control Registers Offsets */
+#define MHU_V2_MSG_CFG_OFFSET 0xF80
+#define MHU_V2_ACCESS_REQ_OFFSET 0xF88
+#define MHU_V2_ACCESS_READY_OFFSET 0xF8C
+
+#define MHU_V2_ACCESS_REQUEST(addr) \
+ mmio_write_32((addr) + MHU_V2_ACCESS_REQ_OFFSET, 0x1)
+
+#define MHU_V2_CLEAR_REQUEST(addr) \
+ mmio_write_32((addr) + MHU_V2_ACCESS_REQ_OFFSET, 0x0)
+
+#define MHU_V2_IS_ACCESS_READY(addr) \
+ (mmio_read_32((addr) + MHU_V2_ACCESS_READY_OFFSET) & 0x1)
+
+void mhu_secure_message_start(uintptr_t address, unsigned int slot_id);
+void mhu_secure_message_send(uintptr_t address,
+ unsigned int slot_id,
+ unsigned int message);
+void mhu_secure_message_end(uintptr_t address, unsigned int slot_id);
+void mhu_secure_init(void);
+
+#endif /* MHU_H */
diff --git a/plat/arm/board/corstone700/include/platform_def.h b/plat/arm/board/corstone700/include/platform_def.h
index 8dff3ec3f..0fb74e442 100644
--- a/plat/arm/board/corstone700/include/platform_def.h
+++ b/plat/arm/board/corstone700/include/platform_def.h
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2019, Arm Limited and Contributors. All rights reserved.
+ * Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -9,20 +9,35 @@
#include <lib/utils_def.h>
#include <lib/xlat_tables/xlat_tables_defs.h>
+
#include <plat/arm/board/common/v2m_def.h>
#include <plat/arm/common/arm_spm_def.h>
#include <plat/common/common_def.h>
+/* PL011 UART related constants */
+#ifdef V2M_IOFPGA_UART0_CLK_IN_HZ
+#undef V2M_IOFPGA_UART0_CLK_IN_HZ
+#endif
+
+#ifdef V2M_IOFPGA_UART1_CLK_IN_HZ
+#undef V2M_IOFPGA_UART1_CLK_IN_HZ
+#endif
+
+#define V2M_IOFPGA_UART0_CLK_IN_HZ 32000000
+#define V2M_IOFPGA_UART1_CLK_IN_HZ 32000000
+
/* Core/Cluster/Thread counts for Corstone700 */
#define CORSTONE700_CLUSTER_COUNT U(1)
#define CORSTONE700_MAX_CPUS_PER_CLUSTER U(4)
#define CORSTONE700_MAX_PE_PER_CPU U(1)
-#define CORSTONE700_CORE_COUNT (CORSTONE700_CLUSTER_COUNT * \
- CORSTONE700_MAX_CPUS_PER_CLUSTER * \
- CORSTONE700_MAX_PE_PER_CPU)
-#define PLATFORM_CORE_COUNT CORSTONE700_CORE_COUNT
+
#define PLAT_ARM_CLUSTER_COUNT CORSTONE700_CLUSTER_COUNT
+#define PLATFORM_CORE_COUNT (PLAT_ARM_CLUSTER_COUNT * \
+ CORSTONE700_MAX_CPUS_PER_CLUSTER * \
+ CORSTONE700_MAX_PE_PER_CPU)
+
+
/* UART related constants */
#define PLAT_ARM_BOOT_UART_BASE 0x1a510000
#define PLAT_ARM_BOOT_UART_CLK_IN_HZ V2M_IOFPGA_UART0_CLK_IN_HZ
@@ -85,8 +100,12 @@
ARM_BL_REGIONS)
/* GIC related constants */
-#define PLAT_ARM_GICD_BASE 0x1C010000
-#define PLAT_ARM_GICC_BASE 0x1C02F000
+#define PLAT_ARM_GICD_BASE 0x1C010000
+#define PLAT_ARM_GICC_BASE 0x1C02F000
+
+/* MHUv2 Secure Channel receiver and sender */
+#define PLAT_SDK700_MHU0_SEND 0x1B800000
+#define PLAT_SDK700_MHU0_RECV 0x1B810000
/* Timer/watchdog related constants */
#define ARM_SYS_CNTCTL_BASE UL(0x1a200000)
@@ -101,46 +120,46 @@
* Macros mapping the MPIDR Affinity levels to ARM Platform Power levels. The
* power levels have a 1:1 mapping with the MPIDR affinity levels.
*/
-#define ARM_PWR_LVL0 MPIDR_AFFLVL0
-#define ARM_PWR_LVL1 MPIDR_AFFLVL1
-#define ARM_PWR_LVL2 MPIDR_AFFLVL2
+#define ARM_PWR_LVL0 MPIDR_AFFLVL0
+#define ARM_PWR_LVL1 MPIDR_AFFLVL1
+#define ARM_PWR_LVL2 MPIDR_AFFLVL2
/*
* Macros for local power states in ARM platforms encoded by State-ID field
* within the power-state parameter.
*/
/* Local power state for power domains in Run state. */
-#define ARM_LOCAL_STATE_RUN U(0)
+#define ARM_LOCAL_STATE_RUN U(0)
/* Local power state for retention. Valid only for CPU power domains */
-#define ARM_LOCAL_STATE_RET U(1)
+#define ARM_LOCAL_STATE_RET U(1)
/* Local power state for OFF/power-down. Valid for CPU and cluster
* power domains
*/
-#define ARM_LOCAL_STATE_OFF U(2)
+#define ARM_LOCAL_STATE_OFF U(2)
-#define PLAT_ARM_TRUSTED_MAILBOX_BASE ARM_TRUSTED_SRAM_BASE
-#define PLAT_ARM_NSTIMER_FRAME_ID U(1)
+#define PLAT_ARM_TRUSTED_MAILBOX_BASE ARM_TRUSTED_SRAM_BASE
+#define PLAT_ARM_NSTIMER_FRAME_ID U(1)
-#define PLAT_ARM_NS_IMAGE_OFFSET (ARM_DRAM1_BASE + UL(0x8000000))
+#define PLAT_ARM_NS_IMAGE_OFFSET (ARM_DRAM1_BASE + UL(0x8000000))
-#define PLAT_PHY_ADDR_SPACE_SIZE (1ULL << 32)
-#define PLAT_VIRT_ADDR_SPACE_SIZE (1ULL << 32)
+#define PLAT_PHY_ADDR_SPACE_SIZE (1ULL << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE (1ULL << 32)
/*
* This macro defines the deepest retention state possible. A higher state
* ID will represent an invalid or a power down state.
*/
-#define PLAT_MAX_RET_STATE 1
+#define PLAT_MAX_RET_STATE 1
/*
* This macro defines the deepest power down states possible. Any state ID
* higher than this is invalid.
*/
-#define PLAT_MAX_OFF_STATE 2
+#define PLAT_MAX_OFF_STATE 2
-#define PLATFORM_STACK_SIZE UL(0x440)
+#define PLATFORM_STACK_SIZE UL(0x440)
-#define ARM_MAP_SHARED_RAM MAP_REGION_FLAT( \
+#define ARM_MAP_SHARED_RAM MAP_REGION_FLAT( \
ARM_SHARED_RAM_BASE, \
ARM_SHARED_RAM_SIZE, \
MT_DEVICE | MT_RW | MT_SECURE)
@@ -170,21 +189,21 @@
#define CORSTONE700_DEVICE_BASE (0x1A000000)
#define CORSTONE700_DEVICE_SIZE (0x26000000)
-#define CORSTONE700_MAP_DEVICE MAP_REGION_FLAT( \
- CORSTONE700_DEVICE_BASE, \
- CORSTONE700_DEVICE_SIZE, \
- MT_DEVICE | MT_RW | MT_SECURE)
-
-#define ARM_IRQ_SEC_PHY_TIMER 29
-
-#define ARM_IRQ_SEC_SGI_0 8
-#define ARM_IRQ_SEC_SGI_1 9
-#define ARM_IRQ_SEC_SGI_2 10
-#define ARM_IRQ_SEC_SGI_3 11
-#define ARM_IRQ_SEC_SGI_4 12
-#define ARM_IRQ_SEC_SGI_5 13
-#define ARM_IRQ_SEC_SGI_6 14
-#define ARM_IRQ_SEC_SGI_7 15
+#define CORSTONE700_MAP_DEVICE MAP_REGION_FLAT( \
+ CORSTONE700_DEVICE_BASE,\
+ CORSTONE700_DEVICE_SIZE,\
+ MT_DEVICE | MT_RW | MT_SECURE)
+
+#define ARM_IRQ_SEC_PHY_TIMER 29
+
+#define ARM_IRQ_SEC_SGI_0 8
+#define ARM_IRQ_SEC_SGI_1 9
+#define ARM_IRQ_SEC_SGI_2 10
+#define ARM_IRQ_SEC_SGI_3 11
+#define ARM_IRQ_SEC_SGI_4 12
+#define ARM_IRQ_SEC_SGI_5 13
+#define ARM_IRQ_SEC_SGI_6 14
+#define ARM_IRQ_SEC_SGI_7 15
/*
* Define a list of Group 1 Secure and Group 0 interrupt properties as per GICv3
@@ -192,7 +211,7 @@
* as Group 0 interrupts.
*/
#define ARM_G1S_IRQ_PROPS(grp) \
- INTR_PROP_DESC(ARM_IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY, \
+ INTR_PROP_DESC(ARM_IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY, \
(grp), GIC_INTR_CFG_LEVEL), \
INTR_PROP_DESC(ARM_IRQ_SEC_SGI_1, GIC_HIGHEST_SEC_PRIORITY, \
(grp), GIC_INTR_CFG_EDGE), \
@@ -217,11 +236,11 @@
* as Group 0 interrupts.
*/
#define PLAT_ARM_G1S_IRQ_PROPS(grp) \
- ARM_G1S_IRQ_PROPS(grp), \
- INTR_PROP_DESC(CORSTONE700_IRQ_TZ_WDOG, \
- GIC_HIGHEST_SEC_PRIORITY, (grp), GIC_INTR_CFG_LEVEL), \
- INTR_PROP_DESC(CORSTONE700_IRQ_SEC_SYS_TIMER, \
- GIC_HIGHEST_SEC_PRIORITY, (grp), GIC_INTR_CFG_LEVEL) \
+ ARM_G1S_IRQ_PROPS(grp), \
+ INTR_PROP_DESC(CORSTONE700_IRQ_TZ_WDOG, GIC_HIGHEST_SEC_PRIORITY, \
+ (grp), GIC_INTR_CFG_LEVEL), \
+ INTR_PROP_DESC(CORSTONE700_IRQ_SEC_SYS_TIMER, \
+ GIC_HIGHEST_SEC_PRIORITY, (grp), GIC_INTR_CFG_LEVEL)
#define PLAT_ARM_G0_IRQ_PROPS(grp) ARM_G0_IRQ_PROPS(grp)
diff --git a/plat/arm/board/corstone700/platform.mk b/plat/arm/board/corstone700/platform.mk
index bff3589eb..a4d4f2227 100644
--- a/plat/arm/board/corstone700/platform.mk
+++ b/plat/arm/board/corstone700/platform.mk
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2019, Arm Limited and Contributors. All rights reserved.
+# Copyright (c) 2019-2020, Arm Limited and Contributors. All rights reserved.
#
# SPDX-License-Identifier: BSD-3-Clause
#
@@ -11,16 +11,19 @@ BL32_SOURCES += plat/arm/common/aarch32/arm_helpers.S \
plat/arm/common/arm_common.c \
lib/xlat_tables/aarch32/xlat_tables.c \
lib/xlat_tables/xlat_tables_common.c \
- ${CORSTONE700_CPU_LIBS}
+ ${CORSTONE700_CPU_LIBS} \
+ plat/arm/board/corstone700/drivers/mhu/mhu.c
-PLAT_INCLUDES := -Iplat/arm/board/corstone700/include
+PLAT_INCLUDES := -Iplat/arm/board/corstone700/include \
+ -Iinclude/plat/arm/common \
+ -Iplat/arm/board/corstone700/drivers/mhu
NEED_BL32 := yes
-CORSTONE700_GIC_SOURCES := drivers/arm/gic/common/gic_common.c \
- drivers/arm/gic/v2/gicv2_main.c \
- drivers/arm/gic/v2/gicv2_helpers.c \
- plat/common/plat_gicv2.c \
+CORSTONE700_GIC_SOURCES := drivers/arm/gic/common/gic_common.c \
+ drivers/arm/gic/v2/gicv2_main.c \
+ drivers/arm/gic/v2/gicv2_helpers.c \
+ plat/common/plat_gicv2.c \
plat/arm/common/arm_gicv2.c
# BL1/BL2 Image not a part of the capsule Image for Corstone700