meson/gxl: Initial port of Amlogic Meson S905x (GXL)
authorAntonio Nino Diaz <antonio.ninodiaz@arm.com>
Wed, 5 Dec 2018 00:09:30 +0000 (00:09 +0000)
committerRemi Pommarel <repk@triplefau.lt>
Tue, 2 Apr 2019 14:33:58 +0000 (16:33 +0200)
The Amlogic Meson S905x is a SoC with a quad core Arm Cortex-A53 running
at 1.5Ghz. It also contains a Cortex-M3 used as SCP.

This port is a minimal implementation of BL31 capable of booting
mainline U-Boot and Linux:

- Partial SCPI support.
- Basic PSCI support (CPU_ON, SYSTEM_RESET, SYSTEM_OFF).
- GICv2 driver set up.
- Basic SIP services (read efuse data, enable/disable JTAG).

This port has been tested on a lepotato.

Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Remi Pommarel <repk@triplefau.lt>
15 files changed:
plat/meson/gxl/aarch64/gxl_helpers.S [new file with mode: 0644]
plat/meson/gxl/gxl_bl31_setup.c [new file with mode: 0644]
plat/meson/gxl/gxl_common.c [new file with mode: 0644]
plat/meson/gxl/gxl_def.h [new file with mode: 0644]
plat/meson/gxl/gxl_efuse.c [new file with mode: 0644]
plat/meson/gxl/gxl_mhu.c [new file with mode: 0644]
plat/meson/gxl/gxl_pm.c [new file with mode: 0644]
plat/meson/gxl/gxl_private.h [new file with mode: 0644]
plat/meson/gxl/gxl_scpi.c [new file with mode: 0644]
plat/meson/gxl/gxl_sip_svc.c [new file with mode: 0644]
plat/meson/gxl/gxl_thermal.c [new file with mode: 0644]
plat/meson/gxl/gxl_topology.c [new file with mode: 0644]
plat/meson/gxl/include/plat_macros.S [new file with mode: 0644]
plat/meson/gxl/include/platform_def.h [new file with mode: 0644]
plat/meson/gxl/platform.mk [new file with mode: 0644]

diff --git a/plat/meson/gxl/aarch64/gxl_helpers.S b/plat/meson/gxl/aarch64/gxl_helpers.S
new file mode 100644 (file)
index 0000000..760d6c4
--- /dev/null
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <assert_macros.S>
+#include <platform_def.h>
+
+       .globl  plat_crash_console_flush
+       .globl  plat_crash_console_init
+       .globl  plat_crash_console_putc
+       .globl  platform_mem_init
+       .globl  plat_is_my_cpu_primary
+       .globl  plat_my_core_pos
+       .globl  plat_reset_handler
+       .globl  plat_gxbb_calc_core_pos
+
+       /* -----------------------------------------------------
+        * unsigned int plat_my_core_pos(void);
+        * -----------------------------------------------------
+        */
+func plat_my_core_pos
+       mrs     x0, mpidr_el1
+       b       plat_gxbb_calc_core_pos
+endfunc plat_my_core_pos
+
+       /* -----------------------------------------------------
+        *  unsigned int plat_gxbb_calc_core_pos(u_register_t mpidr);
+        * -----------------------------------------------------
+        */
+func plat_gxbb_calc_core_pos
+       and     x0, x0, #MPIDR_CPU_MASK
+       ret
+endfunc plat_gxbb_calc_core_pos
+
+       /* -----------------------------------------------------
+        * unsigned int plat_is_my_cpu_primary(void);
+        * -----------------------------------------------------
+        */
+func plat_is_my_cpu_primary
+       mrs     x0, mpidr_el1
+       and     x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+       cmp     x0, #GXBB_PRIMARY_CPU
+       cset    w0, eq
+       ret
+endfunc plat_is_my_cpu_primary
+
+       /* ---------------------------------------------
+        * void platform_mem_init(void);
+        * ---------------------------------------------
+        */
+func platform_mem_init
+       ret
+endfunc platform_mem_init
+
+       /* ---------------------------------------------
+        * int plat_crash_console_init(void)
+        * ---------------------------------------------
+        */
+func plat_crash_console_init
+       mov_imm x0, GXBB_UART0_AO_BASE
+       mov_imm x1, GXBB_UART0_AO_CLK_IN_HZ
+       mov_imm x2, GXBB_UART_BAUDRATE
+       b       console_meson_init
+endfunc plat_crash_console_init
+
+       /* ---------------------------------------------
+        * int plat_crash_console_putc(int c)
+        * Clobber list : x1, x2
+        * ---------------------------------------------
+        */
+func plat_crash_console_putc
+       mov_imm x1, GXBB_UART0_AO_BASE
+       b       console_meson_core_putc
+endfunc plat_crash_console_putc
+
+       /* ---------------------------------------------
+        * int plat_crash_console_flush()
+        * Out : return -1 on error else return 0.
+        * Clobber list : x0, x1
+        * ---------------------------------------------
+        */
+func plat_crash_console_flush
+       mov_imm x0, GXBB_UART0_AO_BASE
+       b       console_meson_core_flush
+endfunc plat_crash_console_flush
+
+       /* ---------------------------------------------
+        * void plat_reset_handler(void);
+        * ---------------------------------------------
+        */
+func plat_reset_handler
+       ret
+endfunc plat_reset_handler
diff --git a/plat/meson/gxl/gxl_bl31_setup.c b/plat/meson/gxl/gxl_bl31_setup.c
new file mode 100644 (file)
index 0000000..0e52f6c
--- /dev/null
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <common/bl_common.h>
+#include <drivers/arm/gicv2.h>
+#include <common/interrupt_props.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+#include <lib/xlat_tables/xlat_mmu_helpers.h>
+
+#include "gxl_private.h"
+
+/*
+ * Placeholder variables for copying the arguments that have been passed to
+ * BL31 from BL2.
+ */
+static entry_point_info_t bl33_image_ep_info;
+
+/*******************************************************************************
+ * Return a pointer to the 'entry_point_info' structure of the next image for
+ * the security state specified. BL33 corresponds to the non-secure image type
+ * while BL32 corresponds to the secure image type. A NULL pointer is returned
+ * if the image does not exist.
+ ******************************************************************************/
+entry_point_info_t *bl31_plat_get_next_image_ep_info(uint32_t type)
+{
+       entry_point_info_t *next_image_info;
+
+       assert(type == NON_SECURE);
+
+       next_image_info = &bl33_image_ep_info;
+
+       /* None of the images can have 0x0 as the entrypoint. */
+       if (next_image_info->pc != 0U) {
+               return next_image_info;
+       } else {
+               return NULL;
+       }
+}
+
+/*******************************************************************************
+ * Perform any BL31 early platform setup. Here is an opportunity to copy
+ * parameters passed by the calling EL (S-EL1 in BL2 & S-EL3 in BL1) before
+ * they are lost (potentially). This needs to be done before the MMU is
+ * initialized so that the memory layout can be used while creating page
+ * tables. BL2 has flushed this information to memory, so we are guaranteed
+ * to pick up good data.
+ ******************************************************************************/
+struct gxbb_bl31_param {
+       param_header_t h;
+       image_info_t *bl31_image_info;
+       entry_point_info_t *bl32_ep_info;
+       image_info_t *bl32_image_info;
+       entry_point_info_t *bl33_ep_info;
+       image_info_t *bl33_image_info;
+};
+
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+                               u_register_t arg2, u_register_t arg3)
+{
+       struct gxbb_bl31_param *from_bl2;
+
+       /* Initialize the console to provide early debug support */
+       gxbb_console_init();
+
+       /*
+        * In debug builds, we pass a special value in 'arg1' to verify platform
+        * parameters from BL2 to BL31. In release builds it's not used.
+        */
+       assert(arg1 == GXBB_BL31_PLAT_PARAM_VAL);
+
+       /* Check that params passed from BL2 are not NULL. */
+       from_bl2 = (struct gxbb_bl31_param *) arg0;
+
+       /* Check params passed from BL2 are not NULL. */
+       assert(from_bl2 != NULL);
+       assert(from_bl2->h.type == PARAM_BL31);
+       assert(from_bl2->h.version >= VERSION_1);
+
+       /*
+        * Copy BL33 entry point information. It is stored in Secure RAM, in
+        * BL2's address space.
+        */
+       bl33_image_ep_info = *from_bl2->bl33_ep_info;
+
+       if (bl33_image_ep_info.pc == 0U) {
+               ERROR("BL31: BL33 entrypoint not obtained from BL2\n");
+               panic();
+       }
+}
+
+void bl31_plat_arch_setup(void)
+{
+       gxbb_setup_page_tables();
+
+       enable_mmu_el3(0);
+}
+
+/*******************************************************************************
+ * GICv2 driver setup information
+ ******************************************************************************/
+static const interrupt_prop_t gxbb_interrupt_props[] = {
+       INTR_PROP_DESC(IRQ_SEC_PHY_TIMER, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_0, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_1, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_2, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_3, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_4, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_5, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+       INTR_PROP_DESC(IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY,
+                      GICV2_INTR_GROUP0, GIC_INTR_CFG_LEVEL),
+};
+
+static const gicv2_driver_data_t gxbb_gic_data = {
+       .gicd_base = GXBB_GICD_BASE,
+       .gicc_base = GXBB_GICC_BASE,
+       .interrupt_props = gxbb_interrupt_props,
+       .interrupt_props_num = ARRAY_SIZE(gxbb_interrupt_props),
+};
+
+void bl31_platform_setup(void)
+{
+       mhu_secure_init();
+
+       gicv2_driver_init(&gxbb_gic_data);
+       gicv2_distif_init();
+       gicv2_pcpu_distif_init();
+       gicv2_cpuif_enable();
+
+//     gxbb_thermal_unknown();
+}
diff --git a/plat/meson/gxl/gxl_common.c b/plat/meson/gxl/gxl_common.c
new file mode 100644 (file)
index 0000000..e3bd604
--- /dev/null
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <common/ep_info.h>
+#include <bl31/interrupt_mgmt.h>
+#include <meson_console.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+#include <stdint.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+
+/*******************************************************************************
+ * Platform memory map regions
+ ******************************************************************************/
+#define MAP_NSDRAM0    MAP_REGION_FLAT(GXBB_NSDRAM0_BASE,              \
+                                       GXBB_NSDRAM0_SIZE,              \
+                                       MT_MEMORY | MT_RW | MT_NS)
+
+#define MAP_NSDRAM1    MAP_REGION_FLAT(GXBB_NSDRAM1_BASE,              \
+                                       GXBB_NSDRAM1_SIZE,              \
+                                       MT_MEMORY | MT_RW | MT_NS)
+
+#define MAP_SEC_DEVICE0        MAP_REGION_FLAT(GXBB_SEC_DEVICE0_BASE,          \
+                                       GXBB_SEC_DEVICE0_SIZE,          \
+                                       MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE1        MAP_REGION_FLAT(GXBB_SEC_DEVICE1_BASE,          \
+                                       GXBB_SEC_DEVICE1_SIZE,          \
+                                       MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_TZRAM      MAP_REGION_FLAT(GXBB_TZRAM_BASE,                \
+                                       GXBB_TZRAM_SIZE,                \
+                                       MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE2        MAP_REGION_FLAT(GXBB_SEC_DEVICE2_BASE,          \
+                                       GXBB_SEC_DEVICE2_SIZE,          \
+                                       MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_SEC_DEVICE3        MAP_REGION_FLAT(GXBB_SEC_DEVICE3_BASE,          \
+                                       GXBB_SEC_DEVICE3_SIZE,          \
+                                       MT_DEVICE | MT_RW | MT_SECURE)
+
+static const mmap_region_t gxbb_mmap[] = {
+       MAP_NSDRAM0,
+       MAP_NSDRAM1,
+       MAP_SEC_DEVICE0,
+       MAP_SEC_DEVICE1,
+       MAP_TZRAM,
+       MAP_SEC_DEVICE2,
+       MAP_SEC_DEVICE3,
+       {0}
+};
+
+/*******************************************************************************
+ * Per-image regions
+ ******************************************************************************/
+#define MAP_BL31       MAP_REGION_FLAT(BL31_BASE,                      \
+                               BL31_END - BL31_BASE,                   \
+                               MT_MEMORY | MT_RW | MT_SECURE)
+
+#define MAP_BL_CODE    MAP_REGION_FLAT(BL_CODE_BASE,                   \
+                               BL_CODE_END - BL_CODE_BASE,             \
+                               MT_CODE | MT_SECURE)
+
+#define MAP_BL_RO_DATA MAP_REGION_FLAT(BL_RO_DATA_BASE,                \
+                               BL_RO_DATA_END - BL_RO_DATA_BASE,       \
+                               MT_RO_DATA | MT_SECURE)
+
+#define MAP_BL_COHERENT        MAP_REGION_FLAT(BL_COHERENT_RAM_BASE,           \
+                               BL_COHERENT_RAM_END - BL_COHERENT_RAM_BASE, \
+                               MT_DEVICE | MT_RW | MT_SECURE)
+
+/*******************************************************************************
+ * Function that sets up the translation tables.
+ ******************************************************************************/
+void gxbb_setup_page_tables(void)
+{
+#if IMAGE_BL31
+       const mmap_region_t gxbb_bl_mmap[] = {
+               MAP_BL31,
+               MAP_BL_CODE,
+               MAP_BL_RO_DATA,
+#if USE_COHERENT_MEM
+               MAP_BL_COHERENT,
+#endif
+               {0}
+       };
+#endif
+
+       mmap_add(gxbb_bl_mmap);
+
+       mmap_add(gxbb_mmap);
+
+       init_xlat_tables();
+}
+
+/*******************************************************************************
+ * Function that sets up the console
+ ******************************************************************************/
+static console_meson_t gxbb_console;
+
+void gxbb_console_init(void)
+{
+       int rc = console_meson_register(GXBB_UART0_AO_BASE,
+                                       GXBB_UART0_AO_CLK_IN_HZ,
+                                       GXBB_UART_BAUDRATE,
+                                       &gxbb_console);
+       if (rc == 0) {
+               /*
+                * The crash console doesn't use the multi console API, it uses
+                * the core console functions directly. It is safe to call panic
+                * and let it print debug information.
+                */
+               panic();
+       }
+
+       console_set_scope(&gxbb_console.console,
+                         CONSOLE_FLAG_BOOT | CONSOLE_FLAG_RUNTIME);
+}
+
+/*******************************************************************************
+ * Function that returns the system counter frequency
+ ******************************************************************************/
+unsigned int plat_get_syscnt_freq2(void)
+{
+       uint32_t val;
+
+       val = mmio_read_32(GXBB_SYS_CPU_CFG7);
+       val &= 0xFDFFFFFF;
+       mmio_write_32(GXBB_SYS_CPU_CFG7, val);
+
+       val = mmio_read_32(GXBB_AO_TIMESTAMP_CNTL);
+       val &= 0xFFFFFE00;
+       mmio_write_32(GXBB_AO_TIMESTAMP_CNTL, val);
+
+       return GXBB_OSC24M_CLK_IN_HZ;
+}
diff --git a/plat/meson/gxl/gxl_def.h b/plat/meson/gxl/gxl_def.h
new file mode 100644 (file)
index 0000000..ada2656
--- /dev/null
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef GXBB_DEF_H
+#define GXBB_DEF_H
+
+#include <lib/utils_def.h>
+
+/*******************************************************************************
+ * System oscillator
+ ******************************************************************************/
+#define GXBB_OSC24M_CLK_IN_HZ                  ULL(24000000) /* 24 MHz */
+
+/*******************************************************************************
+ * Memory regions
+ ******************************************************************************/
+#define GXBB_NSDRAM0_BASE                      UL(0x01000000)
+#define GXBB_NSDRAM0_SIZE                      UL(0x0F000000)
+
+#define GXBB_NSDRAM1_BASE                      UL(0x10000000)
+#define GXBB_NSDRAM1_SIZE                      UL(0x00100000)
+
+#define BL31_BASE                              UL(0x05100000)
+#define BL31_SIZE                              UL(0x000C0000)
+#define BL31_LIMIT                             (BL31_BASE + BL31_SIZE)
+
+/* Shared memory used for SMC services */
+#define GXBB_SHARE_MEM_INPUT_BASE              UL(0x050FE000)
+#define GXBB_SHARE_MEM_OUTPUT_BASE             UL(0x050FF000)
+
+#define GXBB_SEC_DEVICE0_BASE                  UL(0xC0000000)
+#define GXBB_SEC_DEVICE0_SIZE                  UL(0x09000000)
+
+#define GXBB_SEC_DEVICE1_BASE                  UL(0xD0040000)
+#define GXBB_SEC_DEVICE1_SIZE                  UL(0x00008000)
+
+#define GXBB_TZRAM_BASE                                UL(0xD9000000)
+#define GXBB_TZRAM_SIZE                                UL(0x00014000)
+/* Top 0xC000 bytes (up to 0xD9020000) used by BL2 */
+
+/* Mailboxes */
+#define GXBB_MHU_SECURE_SCP_TO_AP_PAYLOAD      UL(0xD9013800)
+#define GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD      UL(0xD9013A00)
+#define GXBB_PSCI_MAILBOX_BASE                 UL(0xD9013F00)
+
+// * [  1K]    0xD901_3800 - 0xD901_3BFF       Secure Mailbox (3)
+// * [  1K]    0xD901_3400 - 0xD901_37FF       High Mailbox (2) *
+// * [  1K]    0xD901_3000 - 0xD901_33FF       High Mailbox (1) *
+
+#define GXBB_TZROM_BASE                                UL(0xD9040000)
+#define GXBB_TZROM_SIZE                                UL(0x00010000)
+
+#define GXBB_SEC_DEVICE2_BASE                  UL(0xDA000000)
+#define GXBB_SEC_DEVICE2_SIZE                  UL(0x00200000)
+
+#define GXBB_SEC_DEVICE3_BASE                  UL(0xDA800000)
+#define GXBB_SEC_DEVICE3_SIZE                  UL(0x00200000)
+
+/*******************************************************************************
+ * GIC-400 and interrupt handling related constants
+ ******************************************************************************/
+#define GXBB_GICD_BASE                         UL(0xC4301000)
+#define GXBB_GICC_BASE                         UL(0xC4302000)
+
+#define IRQ_SEC_PHY_TIMER                      29
+
+#define IRQ_SEC_SGI_0                          8
+#define IRQ_SEC_SGI_1                          9
+#define IRQ_SEC_SGI_2                          10
+#define IRQ_SEC_SGI_3                          11
+#define IRQ_SEC_SGI_4                          12
+#define IRQ_SEC_SGI_5                          13
+#define IRQ_SEC_SGI_6                          14
+#define IRQ_SEC_SGI_7                          15
+
+/*******************************************************************************
+ * UART definitions
+ ******************************************************************************/
+#define GXBB_UART0_AO_BASE                     UL(0xC81004C0)
+#define GXBB_UART0_AO_CLK_IN_HZ                        GXBB_OSC24M_CLK_IN_HZ
+#define GXBB_UART_BAUDRATE                     U(115200)
+
+/*******************************************************************************
+ * Memory-mapped I/O Registers
+ ******************************************************************************/
+#define GXBB_AO_TIMESTAMP_CNTL                 UL(0xC81000B4)
+
+#define GXBB_SYS_CPU_CFG7                      UL(0xC8834664)
+
+#define GXBB_AO_RTI_STATUS_REG3                        UL(0xDA10001C)
+
+#define GXBB_HIU_MAILBOX_SET_0                 UL(0xDA83C404)
+#define GXBB_HIU_MAILBOX_STAT_0                        UL(0xDA83C408)
+#define GXBB_HIU_MAILBOX_CLR_0                 UL(0xDA83C40C)
+#define GXBB_HIU_MAILBOX_SET_3                 UL(0xDA83C428)
+#define GXBB_HIU_MAILBOX_STAT_3                        UL(0xDA83C42C)
+#define GXBB_HIU_MAILBOX_CLR_3                 UL(0xDA83C430)
+
+/*******************************************************************************
+ * System Monitor Call IDs and arguments
+ ******************************************************************************/
+#define GXBB_SM_GET_SHARE_MEM_INPUT_BASE       U(0x82000020)
+#define GXBB_SM_GET_SHARE_MEM_OUTPUT_BASE      U(0x82000021)
+
+#define GXBB_SM_EFUSE_READ                     U(0x82000030)
+#define GXBB_SM_EFUSE_USER_MAX                 U(0x82000033)
+
+#define GXBB_SM_JTAG_ON                                U(0x82000040)
+#define GXBB_SM_JTAG_OFF                       U(0x82000041)
+
+#define GXBB_JTAG_STATE_ON                     U(0)
+#define GXBB_JTAG_STATE_OFF                    U(1)
+
+#define GXBB_JTAG_M3_AO                                U(0)
+#define GXBB_JTAG_M3_EE                                U(1)
+#define GXBB_JTAG_A53_AO                       U(2)
+#define GXBB_JTAG_A53_EE                       U(3)
+
+#endif /* GXBB_DEF_H */
diff --git a/plat/meson/gxl/gxl_efuse.c b/plat/meson/gxl/gxl_efuse.c
new file mode 100644 (file)
index 0000000..b17d1b8
--- /dev/null
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+
+#include "gxl_private.h"
+
+#define EFUSE_BASE     0x140
+#define EFUSE_SIZE     0xC0
+
+uint64_t gxbb_efuse_read(void *dst, uint32_t offset, uint32_t size)
+{
+       if ((uint64_t)(offset + size) > (uint64_t)EFUSE_SIZE)
+               return 0;
+
+       return scpi_efuse_read(dst, offset + EFUSE_BASE, size);
+}
+
+uint64_t gxbb_efuse_user_max(void)
+{
+       return EFUSE_SIZE;
+}
diff --git a/plat/meson/gxl/gxl_mhu.c b/plat/meson/gxl/gxl_mhu.c
new file mode 100644 (file)
index 0000000..4c1d5b6
--- /dev/null
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <lib/bakery_lock.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+
+static DEFINE_BAKERY_LOCK(mhu_lock);
+
+void mhu_secure_message_start(void)
+{
+       bakery_lock_get(&mhu_lock);
+
+       while (mmio_read_32(GXBB_HIU_MAILBOX_STAT_3) != 0)
+               ;
+}
+
+void mhu_secure_message_send(uint32_t msg)
+{
+       mmio_write_32(GXBB_HIU_MAILBOX_SET_3, msg);
+
+       while (mmio_read_32(GXBB_HIU_MAILBOX_STAT_3) != 0)
+               ;
+}
+
+uint32_t mhu_secure_message_wait(void)
+{
+       uint32_t val;
+
+       do {
+               val = mmio_read_32(GXBB_HIU_MAILBOX_STAT_0);
+       } while (val == 0);
+
+       return val;
+}
+
+void mhu_secure_message_end(void)
+{
+       mmio_write_32(GXBB_HIU_MAILBOX_CLR_0, 0xFFFFFFFF);
+
+       bakery_lock_release(&mhu_lock);
+}
+
+void mhu_secure_init(void)
+{
+       bakery_lock_init(&mhu_lock);
+
+       mmio_write_32(GXBB_HIU_MAILBOX_CLR_3, 0xFFFFFFFF);
+}
diff --git a/plat/meson/gxl/gxl_pm.c b/plat/meson/gxl/gxl_pm.c
new file mode 100644 (file)
index 0000000..d9b69ef
--- /dev/null
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch_helpers.h>
+#include <assert.h>
+#include <drivers/console.h>
+#include <common/debug.h>
+#include <errno.h>
+#include <drivers/arm/gicv2.h>
+#include <lib/mmio.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+#include <lib/psci/psci.h>
+
+#include "gxl_private.h"
+
+#define SCPI_POWER_ON          0
+#define SCPI_POWER_RETENTION   1
+#define SCPI_POWER_OFF         3
+
+#define SCPI_SYSTEM_SHUTDOWN   0
+#define SCPI_SYSTEM_REBOOT     1
+
+static uintptr_t gxbb_sec_entrypoint;
+static volatile uint32_t gxbb_cpu0_go;
+
+static void gxbb_program_mailbox(u_register_t mpidr, uint64_t value)
+{
+       unsigned int core = plat_gxbb_calc_core_pos(mpidr);
+       uintptr_t cpu_mailbox_addr = GXBB_PSCI_MAILBOX_BASE + (core << 4);
+
+       mmio_write_64(cpu_mailbox_addr, value);
+       flush_dcache_range(cpu_mailbox_addr, sizeof(uint64_t));
+}
+
+static void __dead2 gxbb_system_reset(void)
+{
+       INFO("BL31: PSCI_SYSTEM_RESET\n");
+
+       uint32_t status = mmio_read_32(GXBB_AO_RTI_STATUS_REG3);
+
+       NOTICE("BL31: Reboot reason: 0x%x\n", status);
+
+       status &= 0xFFFF0FF0;
+
+       console_flush();
+
+       mmio_write_32(GXBB_AO_RTI_STATUS_REG3, status);
+
+       int ret = scpi_sys_power_state(SCPI_SYSTEM_REBOOT);
+
+       if (ret != 0) {
+               ERROR("BL31: PSCI_SYSTEM_RESET: SCP error: %u\n", ret);
+               panic();
+       }
+
+       wfi();
+
+       ERROR("BL31: PSCI_SYSTEM_RESET: Operation not handled\n");
+       panic();
+}
+
+static void __dead2 gxbb_system_off(void)
+{
+       INFO("BL31: PSCI_SYSTEM_OFF\n");
+
+       unsigned int ret = scpi_sys_power_state(SCPI_SYSTEM_SHUTDOWN);
+
+       if (ret != 0) {
+               ERROR("BL31: PSCI_SYSTEM_OFF: SCP error %u\n", ret);
+               panic();
+       }
+
+       gxbb_program_mailbox(read_mpidr_el1(), 0);
+
+       wfi();
+
+       ERROR("BL31: PSCI_SYSTEM_OFF: Operation not handled\n");
+       panic();
+}
+
+static int32_t gxbb_pwr_domain_on(u_register_t mpidr)
+{
+       unsigned int core = plat_gxbb_calc_core_pos(mpidr);
+
+       /* CPU0 can't be turned OFF, emulate it with a WFE loop */
+       if (core == GXBB_PRIMARY_CPU) {
+               VERBOSE("BL31: Releasing CPU0 from wait loop...\n");
+
+               gxbb_cpu0_go = 1;
+               flush_dcache_range((uintptr_t)&gxbb_cpu0_go,
+                               sizeof(gxbb_cpu0_go));
+               dsb();
+               isb();
+
+               sev();
+
+               return PSCI_E_SUCCESS;
+       }
+
+       gxbb_program_mailbox(mpidr, gxbb_sec_entrypoint);
+       scpi_set_css_power_state(mpidr,
+                                SCPI_POWER_ON, SCPI_POWER_ON, SCPI_POWER_ON);
+       dmbsy();
+       sev();
+
+       return PSCI_E_SUCCESS;
+}
+
+static void gxbb_pwr_domain_on_finish(const psci_power_state_t *target_state)
+{
+       unsigned int core = plat_gxbb_calc_core_pos(read_mpidr_el1());
+
+       assert(target_state->pwr_domain_state[MPIDR_AFFLVL0] ==
+                                       PLAT_LOCAL_STATE_OFF);
+
+       if (core == GXBB_PRIMARY_CPU) {
+               gxbb_cpu0_go = 0;
+               flush_dcache_range((uintptr_t)&gxbb_cpu0_go,
+                               sizeof(gxbb_cpu0_go));
+               dsb();
+               isb();
+       }
+
+       gicv2_pcpu_distif_init();
+       gicv2_cpuif_enable();
+}
+
+static void gxbb_pwr_domain_off(const psci_power_state_t *target_state)
+{
+       u_register_t mpidr = read_mpidr_el1();
+       unsigned int core = plat_gxbb_calc_core_pos(mpidr);
+       uintptr_t addr = GXBB_PSCI_MAILBOX_BASE + 8 + (core << 4);
+
+       mmio_write_32(addr, 0xFFFFFFFF);
+       flush_dcache_range(addr, sizeof(uint32_t));
+
+       gicv2_cpuif_disable();
+
+       /* CPU0 can't be turned OFF, emulate it with a WFE loop */
+       if (core == GXBB_PRIMARY_CPU)
+               return;
+
+       scpi_set_css_power_state(mpidr,
+                                SCPI_POWER_OFF, SCPI_POWER_ON, SCPI_POWER_ON);
+}
+
+static void __dead2 gxbb_pwr_domain_pwr_down_wfi(const psci_power_state_t
+                                                *target_state)
+{
+       unsigned int core = plat_gxbb_calc_core_pos(read_mpidr_el1());
+
+       /* CPU0 can't be turned OFF, emulate it with a WFE loop */
+       if (core == GXBB_PRIMARY_CPU) {
+               VERBOSE("BL31: CPU0 entering wait loop...\n");
+
+               while (gxbb_cpu0_go == 0)
+                       wfe();
+
+               VERBOSE("BL31: CPU0 resumed.\n");
+
+               write_rmr_el3(RMR_EL3_RR_BIT | RMR_EL3_AA64_BIT);
+       }
+
+       dsbsy();
+
+       for (;;)
+               wfi();
+}
+
+/*******************************************************************************
+ * Platform handlers and setup function.
+ ******************************************************************************/
+static const plat_psci_ops_t gxbb_ops = {
+       .pwr_domain_on                  = gxbb_pwr_domain_on,
+       .pwr_domain_on_finish           = gxbb_pwr_domain_on_finish,
+       .pwr_domain_off                 = gxbb_pwr_domain_off,
+       .pwr_domain_pwr_down_wfi        = gxbb_pwr_domain_pwr_down_wfi,
+       .system_off                     = gxbb_system_off,
+       .system_reset                   = gxbb_system_reset,
+};
+
+int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+                       const plat_psci_ops_t **psci_ops)
+{
+       gxbb_sec_entrypoint = sec_entrypoint;
+       *psci_ops = &gxbb_ops;
+       gxbb_cpu0_go = 0;
+       return 0;
+}
diff --git a/plat/meson/gxl/gxl_private.h b/plat/meson/gxl/gxl_private.h
new file mode 100644 (file)
index 0000000..910a42c
--- /dev/null
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef GXBB_PRIVATE_H
+#define GXBB_PRIVATE_H
+
+#include <stdint.h>
+
+/* Utility functions */
+unsigned int plat_gxbb_calc_core_pos(u_register_t mpidr);
+void gxbb_console_init(void);
+void gxbb_setup_page_tables(void);
+
+/* MHU functions */
+void mhu_secure_message_start(void);
+void mhu_secure_message_send(uint32_t msg);
+uint32_t mhu_secure_message_wait(void);
+void mhu_secure_message_end(void);
+void mhu_secure_init(void);
+
+/* SCPI functions */
+void scpi_set_css_power_state(u_register_t mpidr, uint32_t cpu_state,
+                             uint32_t cluster_state, uint32_t css_state);
+uint32_t scpi_sys_power_state(uint64_t system_state);
+void scpi_jtag_set_state(uint32_t state, uint8_t select);
+uint32_t scpi_efuse_read(void *dst, uint32_t base, uint32_t size);
+void scpi_unknown_thermal(uint32_t arg0, uint32_t arg1,
+                         uint32_t arg2, uint32_t arg3);
+
+/* Peripherals */
+void gxbb_thermal_unknown(void);
+uint64_t gxbb_efuse_read(void *dst, uint32_t offset, uint32_t size);
+uint64_t gxbb_efuse_user_max(void);
+
+#endif /* GXBB_PRIVATE_H */
diff --git a/plat/meson/gxl/gxl_scpi.c b/plat/meson/gxl/gxl_scpi.c
new file mode 100644 (file)
index 0000000..daa495e
--- /dev/null
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <lib/mmio.h>
+#include <plat/common/platform.h>
+#include <platform_def.h>
+#include <string.h>
+
+#include "gxl_private.h"
+
+#define SIZE_SHIFT     20
+#define SIZE_MASK      0x1FF
+
+/*
+ * Note: The Amlogic SCP firmware uses the legacy SCPI protocol.
+ */
+#define SCPI_CMD_SET_CSS_POWER_STATE   0x04
+#define SCPI_CMD_SET_SYS_POWER_STATE   0x08
+
+#define SCPI_CMD_JTAG_SET_STATE                0xC0
+#define SCPI_CMD_EFUSE_READ            0xC2
+
+static inline uint32_t scpi_cmd(uint32_t command, uint32_t size)
+{
+       return command | (size << SIZE_SHIFT);
+}
+
+void scpi_secure_message_send(uint32_t command, uint32_t size)
+{
+       mhu_secure_message_send(scpi_cmd(command, size));
+}
+
+uint32_t scpi_secure_message_receive(void **message_out, size_t *size_out)
+{
+       uint32_t response = mhu_secure_message_wait();
+
+       size_t size = (response >> SIZE_SHIFT) & SIZE_MASK;
+
+       response &= ~(SIZE_MASK << SIZE_SHIFT);
+
+       if (size_out != NULL)
+               *size_out = size;
+
+       if (message_out != NULL)
+               *message_out = (void *)GXBB_MHU_SECURE_SCP_TO_AP_PAYLOAD;
+
+       return response;
+}
+
+void scpi_set_css_power_state(u_register_t mpidr, uint32_t cpu_state,
+                             uint32_t cluster_state, uint32_t css_state)
+{
+       uint32_t state = (mpidr & 0x0F) | /* CPU ID */
+                        ((mpidr & 0xF00) >> 4) | /* Cluster ID */
+                        (cpu_state << 8) |
+                        (cluster_state << 12) |
+                        (css_state << 16);
+
+       mhu_secure_message_start();
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD, state);
+       mhu_secure_message_send(scpi_cmd(SCPI_CMD_SET_CSS_POWER_STATE, 4));
+       mhu_secure_message_wait();
+       mhu_secure_message_end();
+}
+
+uint32_t scpi_sys_power_state(uint64_t system_state)
+{
+       uint32_t *response;
+       size_t size;
+
+       mhu_secure_message_start();
+       mmio_write_8(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD, system_state);
+       mhu_secure_message_send(scpi_cmd(SCPI_CMD_SET_SYS_POWER_STATE, 1));
+       scpi_secure_message_receive((void *)&response, &size);
+       mhu_secure_message_end();
+
+       return *response;
+}
+
+void scpi_jtag_set_state(uint32_t state, uint8_t select)
+{
+       assert(state <= GXBB_JTAG_STATE_OFF);
+
+       if (select > GXBB_JTAG_A53_EE) {
+               WARN("BL31: Invalid JTAG select (0x%x).\n", select);
+               return;
+       }
+
+       mhu_secure_message_start();
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD,
+                     (state << 8) | (uint32_t)select);
+       mhu_secure_message_send(scpi_cmd(SCPI_CMD_JTAG_SET_STATE, 4));
+       mhu_secure_message_wait();
+       mhu_secure_message_end();
+}
+
+uint32_t scpi_efuse_read(void *dst, uint32_t base, uint32_t size)
+{
+       uint32_t *response;
+       size_t resp_size;
+
+       if (size > 0x1FC)
+               return 0;
+
+       mhu_secure_message_start();
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD, base);
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD + 4, size);
+       mhu_secure_message_send(scpi_cmd(SCPI_CMD_EFUSE_READ, 8));
+       scpi_secure_message_receive((void *)&response, &resp_size);
+       mhu_secure_message_end();
+
+       /*
+        * response[0] is the size of the response message.
+        * response[1 ... N] are the contents.
+        */
+       if (*response != 0)
+               memcpy(dst, response + 1, *response);
+
+       return *response;
+}
+
+void scpi_unknown_thermal(uint32_t arg0, uint32_t arg1,
+                         uint32_t arg2, uint32_t arg3)
+{
+       mhu_secure_message_start();
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x0, arg0);
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x4, arg1);
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0x8, arg2);
+       mmio_write_32(GXBB_MHU_SECURE_AP_TO_SCP_PAYLOAD + 0xC, arg3);
+       mhu_secure_message_send(scpi_cmd(0xC3, 16));
+       mhu_secure_message_wait();
+       mhu_secure_message_end();
+}
diff --git a/plat/meson/gxl/gxl_sip_svc.c b/plat/meson/gxl/gxl_sip_svc.c
new file mode 100644 (file)
index 0000000..74fbc80
--- /dev/null
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <platform_def.h>
+#include <common/runtime_svc.h>
+#include <stdint.h>
+
+#include "gxl_private.h"
+
+/*******************************************************************************
+ * This function is responsible for handling all SiP calls
+ ******************************************************************************/
+static uintptr_t gxbb_sip_handler(uint32_t smc_fid,
+                                 u_register_t x1, u_register_t x2,
+                                 u_register_t x3, u_register_t x4,
+                                 void *cookie, void *handle,
+                                 u_register_t flags)
+{
+       switch (smc_fid) {
+
+       case GXBB_SM_GET_SHARE_MEM_INPUT_BASE:
+               SMC_RET1(handle, GXBB_SHARE_MEM_INPUT_BASE);
+
+       case GXBB_SM_GET_SHARE_MEM_OUTPUT_BASE:
+               SMC_RET1(handle, GXBB_SHARE_MEM_OUTPUT_BASE);
+
+       case GXBB_SM_EFUSE_READ:
+       {
+               void *dst = (void *)GXBB_SHARE_MEM_OUTPUT_BASE;
+               uint64_t ret = gxbb_efuse_read(dst, (uint32_t)x1, x2);
+
+               SMC_RET1(handle, ret);
+       }
+       case GXBB_SM_EFUSE_USER_MAX:
+               SMC_RET1(handle,  gxbb_efuse_user_max());
+
+       case GXBB_SM_JTAG_ON:
+               scpi_jtag_set_state(GXBB_JTAG_STATE_ON, x1);
+               SMC_RET1(handle, 0);
+
+       case GXBB_SM_JTAG_OFF:
+               scpi_jtag_set_state(GXBB_JTAG_STATE_OFF, x1);
+               SMC_RET1(handle, 0);
+
+       default:
+               ERROR("BL31: Unhandled SIP SMC: 0x%08x\n", smc_fid);
+               break;
+       }
+
+       SMC_RET1(handle, SMC_UNK);
+}
+
+DECLARE_RT_SVC(
+       gxbb_sip_handler,
+
+       OEN_SIP_START,
+       OEN_SIP_END,
+       SMC_TYPE_FAST,
+       NULL,
+       gxbb_sip_handler
+);
diff --git a/plat/meson/gxl/gxl_thermal.c b/plat/meson/gxl/gxl_thermal.c
new file mode 100644 (file)
index 0000000..3af1c6d
--- /dev/null
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <stdint.h>
+
+#include "gxl_private.h"
+
+static int32_t modules_initialized = -1;
+
+/*******************************************************************************
+ * Unknown commands related to something thermal-related
+ ******************************************************************************/
+void gxbb_thermal_unknown(void)
+{
+       uint16_t ret;
+
+       if (modules_initialized == -1) {
+               scpi_efuse_read(&ret, 0, 2);
+               modules_initialized = ret;
+       }
+
+       scpi_unknown_thermal(10, 2,  /* thermal */
+                            13, 1); /* thermalver */
+}
diff --git a/plat/meson/gxl/gxl_topology.c b/plat/meson/gxl/gxl_topology.c
new file mode 100644 (file)
index 0000000..cca3ead
--- /dev/null
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <platform_def.h>
+#include <stdint.h>
+
+#include "gxl_private.h"
+
+/* The power domain tree descriptor */
+static unsigned char power_domain_tree_desc[] = {
+       /* Number of root nodes */
+       PLATFORM_CLUSTER_COUNT,
+       /* Number of children for the first node */
+       PLATFORM_CLUSTER0_CORE_COUNT
+};
+
+/*******************************************************************************
+ * This function returns the ARM default topology tree information.
+ ******************************************************************************/
+const unsigned char *plat_get_power_domain_tree_desc(void)
+{
+       return power_domain_tree_desc;
+}
+
+/*******************************************************************************
+ * This function implements a part of the critical interface between the psci
+ * generic layer and the platform that allows the former to query the platform
+ * to convert an MPIDR to a unique linear index. An error code (-1) is returned
+ * in case the MPIDR is invalid.
+ ******************************************************************************/
+int plat_core_pos_by_mpidr(u_register_t mpidr)
+{
+       unsigned int cluster_id, cpu_id;
+
+       mpidr &= MPIDR_AFFINITY_MASK;
+       if (mpidr & ~(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK))
+               return -1;
+
+       cluster_id = (mpidr >> MPIDR_AFF1_SHIFT) & MPIDR_AFFLVL_MASK;
+       cpu_id = (mpidr >> MPIDR_AFF0_SHIFT) & MPIDR_AFFLVL_MASK;
+
+       if (cluster_id >= PLATFORM_CLUSTER_COUNT)
+               return -1;
+
+       if (cpu_id >= PLATFORM_MAX_CPUS_PER_CLUSTER)
+               return -1;
+
+       return plat_gxbb_calc_core_pos(mpidr);
+}
diff --git a/plat/meson/gxl/include/plat_macros.S b/plat/meson/gxl/include/plat_macros.S
new file mode 100644 (file)
index 0000000..c721c21
--- /dev/null
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_MACROS_S
+#define PLAT_MACROS_S
+
+#include <drivers/arm/gicv2.h>
+#include <platform_def.h>
+
+.section .rodata.gic_reg_name, "aS"
+
+gicc_regs:
+       .asciz "gicc_hppir", "gicc_ahppir", "gicc_ctlr", ""
+gicd_pend_reg:
+       .asciz "gicd_ispendr regs (Offsets 0x200 - 0x278)\n Offset:\t\t\tvalue\n"
+newline:
+       .asciz "\n"
+spacer:
+       .asciz ":\t\t0x"
+
+       /* ---------------------------------------------
+        * The below required platform porting macro
+        * prints out relevant GIC and CCI registers
+        * whenever an unhandled exception is taken in
+        * BL31.
+        * Clobbers: x0 - x10, x16, x17, sp
+        * ---------------------------------------------
+        */
+       .macro plat_crash_print_regs
+
+       /* GICC registers */
+
+       mov_imm x17, GXBB_GICC_BASE
+
+       adr     x6, gicc_regs
+       ldr     w8, [x17, #GICC_HPPIR]
+       ldr     w9, [x17, #GICC_AHPPIR]
+       ldr     w10, [x17, #GICC_CTLR]
+       bl      str_in_crash_buf_print
+
+       /* GICD registers */
+
+       mov_imm x16, GXBB_GICD_BASE
+
+       add     x7, x16, #GICD_ISPENDR
+       adr     x4, gicd_pend_reg
+       bl      asm_print_str
+
+gicd_ispendr_loop:
+       sub     x4, x7, x16
+       cmp     x4, #0x280
+       b.eq    exit_print_gic_regs
+       bl      asm_print_hex
+
+       adr     x4, spacer
+       bl      asm_print_str
+
+       ldr     x4, [x7], #8
+       bl      asm_print_hex
+
+       adr     x4, newline
+       bl      asm_print_str
+       b       gicd_ispendr_loop
+exit_print_gic_regs:
+
+       .endm
+
+#endif /* PLAT_MACROS_S */
diff --git a/plat/meson/gxl/include/platform_def.h b/plat/meson/gxl/include/platform_def.h
new file mode 100644 (file)
index 0000000..b32ec56
--- /dev/null
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_DEF_H
+#define PLATFORM_DEF_H
+
+#include <arch.h>
+#include <lib/utils_def.h>
+
+#include "../gxl_def.h"
+
+#define PLATFORM_LINKER_FORMAT         "elf64-littleaarch64"
+#define PLATFORM_LINKER_ARCH           aarch64
+
+/* Special value used to verify platform parameters from BL2 to BL31 */
+#define GXBB_BL31_PLAT_PARAM_VAL       ULL(0x0F1E2D3C4B5A6978)
+
+#define PLATFORM_STACK_SIZE            UL(0x1000)
+
+#define PLATFORM_MAX_CPUS_PER_CLUSTER  U(4)
+#define PLATFORM_CLUSTER_COUNT         U(1)
+#define PLATFORM_CLUSTER0_CORE_COUNT   PLATFORM_MAX_CPUS_PER_CLUSTER
+#define PLATFORM_CORE_COUNT            PLATFORM_CLUSTER0_CORE_COUNT
+
+#define GXBB_PRIMARY_CPU               U(0)
+
+#define PLAT_MAX_PWR_LVL               MPIDR_AFFLVL1
+#define PLAT_NUM_PWR_DOMAINS           (PLATFORM_CLUSTER_COUNT + \
+                                        PLATFORM_CORE_COUNT)
+
+#define PLAT_MAX_RET_STATE             U(1)
+#define PLAT_MAX_OFF_STATE             U(2)
+
+/* Local power state for power domains in Run state. */
+#define PLAT_LOCAL_STATE_RUN           U(0)
+/* Local power state for retention. Valid only for CPU power domains */
+#define PLAT_LOCAL_STATE_RET           U(1)
+/* Local power state for power-down. Valid for CPU and cluster power domains. */
+#define PLAT_LOCAL_STATE_OFF           U(2)
+
+/*
+ * Macros used to parse state information from State-ID if it is using the
+ * recommended encoding for State-ID.
+ */
+#define PLAT_LOCAL_PSTATE_WIDTH                U(4)
+#define PLAT_LOCAL_PSTATE_MASK         ((U(1) << PLAT_LOCAL_PSTATE_WIDTH) - 1)
+
+/*
+ * Some data must be aligned on the biggest cache line size in the platform.
+ * This is known only to the platform as it might have a combination of
+ * integrated and external caches.
+ */
+#define CACHE_WRITEBACK_SHIFT          U(6)
+#define CACHE_WRITEBACK_GRANULE                (U(1) << CACHE_WRITEBACK_SHIFT)
+
+/* Memory-related defines */
+#define PLAT_PHY_ADDR_SPACE_SIZE       (ULL(1) << 32)
+#define PLAT_VIRT_ADDR_SPACE_SIZE      (ULL(1) << 32)
+
+#define MAX_MMAP_REGIONS               12
+#define MAX_XLAT_TABLES                        6
+
+#endif /* PLATFORM_DEF_H */
diff --git a/plat/meson/gxl/platform.mk b/plat/meson/gxl/platform.mk
new file mode 100644 (file)
index 0000000..7437dfd
--- /dev/null
@@ -0,0 +1,76 @@
+#
+# Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+
+include lib/xlat_tables_v2/xlat_tables.mk
+
+PLAT_INCLUDES          :=      -Iinclude/drivers/meson/                \
+                               -Iplat/meson/gxl/include
+
+GXBB_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_BL_COMMON_SOURCES :=      drivers/meson/console/aarch64/meson_console.S \
+                               plat/meson/gxl/gxl_common.c             \
+                               plat/meson/gxl/gxl_topology.c           \
+                               ${XLAT_TABLES_LIB_SRCS}
+
+BL31_SOURCES           +=      lib/cpus/aarch64/cortex_a53.S           \
+                               plat/common/plat_psci_common.c          \
+                               plat/meson/gxl/aarch64/gxl_helpers.S    \
+                               plat/meson/gxl/gxl_bl31_setup.c \
+                               plat/meson/gxl/gxl_efuse.c              \
+                               plat/meson/gxl/gxl_mhu.c                \
+                               plat/meson/gxl/gxl_pm.c         \
+                               plat/meson/gxl/gxl_scpi.c               \
+                               plat/meson/gxl/gxl_sip_svc.c            \
+                               plat/meson/gxl/gxl_thermal.c            \
+                               ${GXBB_GIC_SOURCES}
+
+# Tune compiler for Cortex-A53
+ifeq ($(notdir $(CC)),armclang)
+    TF_CFLAGS_aarch64  +=      -mcpu=cortex-a53
+else ifneq ($(findstring clang,$(notdir $(CC))),)
+    TF_CFLAGS_aarch64  +=      -mcpu=cortex-a53
+else
+    TF_CFLAGS_aarch64  +=      -mtune=cortex-a53
+endif
+
+# Build config flags
+# ------------------
+
+# Enable all errata workarounds for Cortex-A53
+ERRATA_A53_855873              := 1
+ERRATA_A53_819472              := 1
+ERRATA_A53_824069              := 1
+ERRATA_A53_827319              := 1
+
+WORKAROUND_CVE_2017_5715       := 0
+
+# Have different sections for code and rodata
+SEPARATE_CODE_AND_RODATA       := 1
+
+# Use Coherent memory
+USE_COHERENT_MEM               := 1
+
+# Use multi console API
+MULTI_CONSOLE_API              := 1
+
+# Verify build config
+# -------------------
+
+ifneq (${MULTI_CONSOLE_API}, 1)
+  $(error Error: gxl needs MULTI_CONSOLE_API=1)
+endif
+
+ifneq (${RESET_TO_BL31}, 0)
+  $(error Error: gxl needs RESET_TO_BL31=0)
+endif
+
+ifeq (${ARCH},aarch32)
+  $(error Error: AArch32 not supported on gxl)
+endif