meson/gxl: Initial port of Amlogic Meson S905x (GXL)
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>
diff --git a/plat/meson/gxl/gxl_common.c b/plat/meson/gxl/gxl_common.c
new file mode 100644
index 0000000..e3bd604
--- /dev/null
+++ b/plat/meson/gxl/gxl_common.c
@@ -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;
+}