plat/arm: Introduce A5 DesignStart platform.

This patch adds support for Cortex-A5 FVP for the
DesignStart program. DesignStart aims at providing
low cost and fast access to Arm IP.

Currently with this patch only the primary CPU is booted
and the rest of them wait for an interrupt.

Signed-off-by: Usama Arif <usama.arif@arm.com>
Change-Id: I3a2281ce6de2402dda4610a89939ed53aa045fab
diff --git a/plat/arm/board/a5ds/include/platform_def.h b/plat/arm/board/a5ds/include/platform_def.h
new file mode 100644
index 0000000..db65c37
--- /dev/null
+++ b/plat/arm/board/a5ds/include/platform_def.h
@@ -0,0 +1,350 @@
+/*
+ * Copyright (c) 2019, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_DEF_H
+#define PLATFORM_DEF_H
+
+#include <common/tbbr/tbbr_img_def.h>
+#include <lib/utils_def.h>
+#include <lib/xlat_tables/xlat_tables_defs.h>
+#include <plat/arm/board/common/v2m_def.h>
+#include <plat/common/common_def.h>
+
+/* Memory location options for TSP */
+#define ARM_DRAM_ID			2
+
+#define ARM_DRAM1_BASE			UL(0x80000000)
+#define ARM_DRAM1_SIZE			UL(0x80000000)
+#define ARM_DRAM1_END			(ARM_DRAM1_BASE +		\
+					 ARM_DRAM1_SIZE - 1)
+
+#define ARM_NS_DRAM1_BASE		ARM_DRAM1_BASE
+/*
+ * The last 2MB is meant to be NOLOAD and will not be zero
+ * initialized.
+ */
+#define ARM_NS_DRAM1_SIZE		(ARM_DRAM1_SIZE -		\
+					 0x00200000)
+
+#define SRAM_BASE	0x2000000
+#define SRAM_SIZE	0x200000
+
+/* The first 4KB of NS DRAM1 are used as shared memory */
+#define A5DS_SHARED_RAM_BASE		SRAM_BASE
+#define A5DS_SHARED_RAM_SIZE		UL(0x00001000)	/* 4 KB */
+
+/* The next 252 kB of NS DRAM is used to load the BL images */
+#define ARM_BL_RAM_BASE	(A5DS_SHARED_RAM_BASE +	\
+					 A5DS_SHARED_RAM_SIZE)
+#define ARM_BL_RAM_SIZE	(PLAT_ARM_BL_PLUS_SHARED_RAM_SIZE -	\
+					 A5DS_SHARED_RAM_SIZE)
+
+#define PERIPHBASE 0x1a000000
+#define PERIPH_SIZE  0x00240000
+#define A5_PERIPHERALS_BASE 0x1c000000
+#define A5_PERIPHERALS_SIZE  0x10000
+
+#define ARM_CACHE_WRITEBACK_SHIFT	6
+
+#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
+ * terminology. On a GICv2 system or mode, the lists will be merged and treated
+ * as Group 0 interrupts.
+ */
+#define ARM_G1S_IRQ_PROPS(grp) \
+	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), \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_2, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE), \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_3, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE), \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_4, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE), \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_5, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE), \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_7, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE)
+
+#define ARM_G0_IRQ_PROPS(grp) \
+	INTR_PROP_DESC(ARM_IRQ_SEC_SGI_6, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_EDGE)
+
+#define A5DS_IRQ_TZ_WDOG			56
+#define A5DS_IRQ_SEC_SYS_TIMER		57
+
+/* Default cluster count for A5DS */
+#define A5DS_CLUSTER_COUNT	1
+
+/* Default number of CPUs per cluster on A5DS */
+#define A5DS_MAX_CPUS_PER_CLUSTER	4
+
+/* Default number of threads per CPU on A5DS */
+#define A5DS_MAX_PE_PER_CPU	1
+
+#define A5DS_CORE_COUNT 1
+
+#define A5DS_PRIMARY_CPU			0x0
+
+#define FLASH1_BASE			UL(0x8000000)
+#define FLASH1_SIZE			UL(0x2800000)
+
+#define MAP_FLASH1_RW		MAP_REGION_FLAT(FLASH1_BASE,\
+						FLASH1_SIZE,	\
+						MT_DEVICE | MT_RW | MT_SECURE)
+
+#define MAP_FLASH1_RO		MAP_REGION_FLAT(FLASH1_BASE,\
+						FLASH1_SIZE,	\
+						MT_RO_DATA | MT_SECURE)
+
+#define ARM_MAP_SHARED_RAM		MAP_REGION_FLAT(		\
+						A5DS_SHARED_RAM_BASE,	\
+						A5DS_SHARED_RAM_SIZE,	\
+						MT_MEMORY | MT_RW | MT_SECURE)
+
+#define ARM_MAP_NS_DRAM1		MAP_REGION_FLAT(		\
+						ARM_NS_DRAM1_BASE,	\
+						ARM_NS_DRAM1_SIZE,	\
+						MT_MEMORY | MT_RW | MT_NS)
+
+#define ARM_MAP_SRAM		MAP_REGION_FLAT(		\
+						SRAM_BASE,	\
+						SRAM_SIZE,	\
+						MT_MEMORY | MT_RW | MT_NS)
+
+/*
+ * Mapping for the BL1 RW region. This mapping is needed by BL2 in order to
+ * share the Mbed TLS heap. Since the heap is allocated inside BL1, it resides
+ * in the BL1 RW region. Hence, BL2 needs access to the BL1 RW region in order
+ * to be able to access the heap.
+ */
+
+#define ARM_MAP_BL_RO	MAP_REGION_FLAT(\
+						BL_CODE_BASE,\
+						BL_CODE_END - BL_CODE_BASE,\
+						MT_CODE | MT_SECURE),\
+					MAP_REGION_FLAT(\
+						BL_RO_DATA_BASE,\
+						BL_RO_DATA_END\
+						- BL_RO_DATA_BASE,	\
+						MT_RO_DATA | MT_SECURE)
+
+#if USE_COHERENT_MEM
+#define ARM_MAP_BL_COHERENT_RAM		MAP_REGION_FLAT(\
+						BL_COHERENT_RAM_BASE,\
+						BL_COHERENT_RAM_END	\
+						- BL_COHERENT_RAM_BASE, \
+						MT_DEVICE | MT_RW | MT_SECURE)
+#endif
+
+/*
+ * The max number of regions like RO(code), coherent and data required by
+ * different BL stages which need to be mapped in the MMU.
+ */
+#define ARM_BL_REGIONS			5
+
+#define MAX_MMAP_REGIONS		(PLAT_ARM_MMAP_ENTRIES +	\
+					 ARM_BL_REGIONS)
+
+/* Memory mapped Generic timer interfaces  */
+#define A5DS_TIMER_BASE_FREQUENCY		UL(24000000)
+
+#define ARM_CONSOLE_BAUDRATE		115200
+
+#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
+
+/*
+ * This macro defines the deepest power down states possible. Any state ID
+ * higher than this is invalid.
+ */
+#define PLAT_MAX_OFF_STATE		2
+
+/*
+ * 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_GRANULE		(U(1) << ARM_CACHE_WRITEBACK_SHIFT)
+
+/*
+ * To enable TB_FW_CONFIG to be loaded by BL1, define the corresponding base
+ * and limit. Leave enough space of BL2 meminfo.
+ */
+#define ARM_TB_FW_CONFIG_BASE		(ARM_BL_RAM_BASE + sizeof(meminfo_t))
+#define ARM_TB_FW_CONFIG_LIMIT		(ARM_BL_RAM_BASE + PAGE_SIZE)
+
+/*******************************************************************************
+ * BL1 specific defines.
+ * BL1 RW data is relocated from ROM to RAM at runtime so we need 2 sets of
+ * addresses.
+ ******************************************************************************/
+#define BL1_RO_BASE			0x00000000
+#define BL1_RO_LIMIT			PLAT_ARM_TRUSTED_ROM_SIZE
+/*
+ * Put BL1 RW at the top of the memory allocated for BL images in NS DRAM.
+ */
+#define BL1_RW_BASE	(ARM_BL_RAM_BASE + \
+						ARM_BL_RAM_SIZE - \
+						(PLAT_ARM_MAX_BL1_RW_SIZE))
+#define BL1_RW_LIMIT (ARM_BL_RAM_BASE + \
+					    (ARM_BL_RAM_SIZE))
+/*******************************************************************************
+ * BL2 specific defines.
+ ******************************************************************************/
+
+/*
+ * Put BL2 just below BL1.
+ */
+#define BL2_BASE			(BL1_RW_BASE - A5DS_MAX_BL2_SIZE)
+#define BL2_LIMIT			BL1_RW_BASE
+
+/* Put BL32 below BL2 in NS DRAM.*/
+#define ARM_BL2_MEM_DESC_BASE		ARM_TB_FW_CONFIG_LIMIT
+
+#define BL32_BASE			((ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE)\
+						- PLAT_ARM_MAX_BL32_SIZE)
+#define BL32_PROGBITS_LIMIT		BL2_BASE
+#define BL32_LIMIT			(ARM_BL_RAM_BASE + ARM_BL_RAM_SIZE)
+
+/* Required platform porting definitions */
+#define PLATFORM_CORE_COUNT 1
+#define PLAT_NUM_PWR_DOMAINS		(A5DS_CLUSTER_COUNT + \
+					PLATFORM_CORE_COUNT) + 1
+
+#define PLAT_MAX_PWR_LVL		2
+
+/*
+ * Other platform porting definitions are provided by included headers
+ */
+
+/*
+ * Required ARM standard platform porting definitions
+ */
+
+#define PLAT_ARM_BL_PLUS_SHARED_RAM_SIZE	0x00040000	/* 256 KB */
+
+#define PLAT_ARM_TRUSTED_ROM_BASE	0x00000000
+#define PLAT_ARM_TRUSTED_ROM_SIZE	0x10000	/* 64KB */
+
+#define PLAT_ARM_DRAM2_SIZE		ULL(0x80000000)
+
+/*
+ * Load address of BL33 for this platform port
+ */
+#define PLAT_ARM_NS_IMAGE_BASE	(ARM_DRAM1_BASE + U(0x8000000))
+
+/*
+ * PLAT_ARM_MMAP_ENTRIES depends on the number of entries in the
+ * plat_arm_mmap array defined for each BL stage.
+ */
+#if defined(IMAGE_BL32)
+# define PLAT_ARM_MMAP_ENTRIES		8
+# define MAX_XLAT_TABLES		6
+#else
+# define PLAT_ARM_MMAP_ENTRIES		12
+# define MAX_XLAT_TABLES		6
+#endif
+
+/*
+ * PLAT_ARM_MAX_BL1_RW_SIZE is calculated using the current BL1 RW debug size
+ * plus a little space for growth.
+ */
+#define PLAT_ARM_MAX_BL1_RW_SIZE	0xB000
+
+/*
+ * A5DS_MAX_BL2_SIZE is calculated using the current BL2 debug size plus a
+ * little space for growth.
+ */
+#define A5DS_MAX_BL2_SIZE		0x11000
+
+/*
+ * Since BL32 NOBITS overlays BL2 and BL1-RW, PLAT_ARM_MAX_BL32_SIZE is
+ * calculated using the current SP_MIN PROGBITS debug size plus the sizes of
+ * BL2 and BL1-RW
+ */
+#define PLAT_ARM_MAX_BL32_SIZE		0x3B000
+/*
+ * Size of cacheable stacks
+ */
+#if defined(IMAGE_BL1)
+#  define PLATFORM_STACK_SIZE 0x440
+#elif defined(IMAGE_BL2)
+#  define PLATFORM_STACK_SIZE 0x400
+#elif defined(IMAGE_BL32)
+# define PLATFORM_STACK_SIZE 0x440
+#endif
+
+#define MAX_IO_DEVICES			3
+#define MAX_IO_HANDLES			4
+
+/* Reserve the last block of flash for PSCI MEM PROTECT flag */
+#define PLAT_ARM_FIP_BASE		FLASH1_BASE
+#define PLAT_ARM_FIP_MAX_SIZE		(FLASH1_SIZE - V2M_FLASH_BLOCK_SIZE)
+
+#define PLAT_ARM_NVM_BASE		FLASH1_BASE
+#define PLAT_ARM_NVM_SIZE		(FLASH1_SIZE - V2M_FLASH_BLOCK_SIZE)
+
+/*
+ * PL011 related constants
+ */
+#define PLAT_ARM_BOOT_UART_BASE		0x1A200000
+#define PLAT_ARM_BOOT_UART_CLK_IN_HZ	24000000
+
+#define PLAT_ARM_RUN_UART_BASE		0x1A210000
+#define PLAT_ARM_RUN_UART_CLK_IN_HZ	24000000
+
+#define PLAT_ARM_CRASH_UART_BASE	PLAT_ARM_RUN_UART_BASE
+#define PLAT_ARM_CRASH_UART_CLK_IN_HZ	PLAT_ARM_RUN_UART_CLK_IN_HZ
+
+#define A5DS_TIMER_BASE_FREQUENCY	UL(24000000)
+
+/* System timer related constants */
+#define PLAT_ARM_NSTIMER_FRAME_ID		1
+
+/* Mailbox base address */
+#define A5DS_TRUSTED_MAILBOX_BASE	A5DS_SHARED_RAM_BASE
+
+/*
+ * GIC related constants to cater for GICv2
+ */
+#define PLAT_ARM_GICD_BASE		0x1C001000
+#define PLAT_ARM_GICC_BASE		0x1C000100
+
+/*
+ * Define a list of Group 1 Secure and Group 0 interrupts as per GICv3
+ * terminology. On a GICv2 system or mode, the lists will be merged and treated
+ * as Group 0 interrupts.
+ */
+#define PLAT_ARM_G1S_IRQ_PROPS(grp) \
+	ARM_G1S_IRQ_PROPS(grp), \
+	INTR_PROP_DESC(A5DS_IRQ_TZ_WDOG, GIC_HIGHEST_SEC_PRIORITY, (grp), \
+			GIC_INTR_CFG_LEVEL), \
+	INTR_PROP_DESC(A5DS_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)
+
+#endif /* PLATFORM_DEF_H */