From 70cf3f7498e98a98b21804f577f3b850018894da Mon Sep 17 00:00:00 2001
From: Rui Miguel Silva <rui.silva@linaro.org>
Date: Wed, 8 Jan 2020 09:48:11 +0000
Subject: [PATCH 2/2] board: arm: add corstone500 board

Upstream-Status: Pending [Not submitted to upstream yet]
Signed-off-by: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>

Add support for the Arm corstone500 platform, with a cortex-a5
chip, add the default configuration, initialization and
makefile for this system.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
---
 arch/arm/Kconfig                       |  10 +++
 board/armltd/corstone500/Kconfig       |  12 +++
 board/armltd/corstone500/Makefile      |   8 ++
 board/armltd/corstone500/corstone500.c |  48 ++++++++++++
 configs/corstone500_defconfig          |  41 ++++++++++
 include/configs/corstone500.h          | 102 +++++++++++++++++++++++++
 6 files changed, 221 insertions(+)
 create mode 100644 board/armltd/corstone500/Kconfig
 create mode 100644 board/armltd/corstone500/Makefile
 create mode 100644 board/armltd/corstone500/corstone500.c
 create mode 100644 configs/corstone500_defconfig
 create mode 100644 include/configs/corstone500.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 82cd456f51f1..a925e7759ee8 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1349,6 +1349,15 @@ config TARGET_CORSTONE1000
 	select PL01X_SERIAL
 	select DM
 
+config TARGET_CORSTONE500
+	bool "Support Corstone500"
+	select CPU_V7A
+	select SEMIHOSTING
+	select PL01X_SERIAL
+	help
+	  This enables support for Corstone500 ARM which is a
+	  Cortex-A5 system
+
 config TARGET_TOTAL_COMPUTE
 	bool "Support Total Compute Platform"
 	select ARM64
@@ -2302,6 +2311,7 @@ source "board/bosch/shc/Kconfig"
 source "board/bosch/guardian/Kconfig"
 source "board/Marvell/octeontx/Kconfig"
 source "board/Marvell/octeontx2/Kconfig"
+source "board/armltd/corstone500/Kconfig"
 source "board/armltd/vexpress/Kconfig"
 source "board/armltd/vexpress64/Kconfig"
 source "board/cortina/presidio-asic/Kconfig"
diff --git a/board/armltd/corstone500/Kconfig b/board/armltd/corstone500/Kconfig
new file mode 100644
index 000000000000..8e689bd1fdc8
--- /dev/null
+++ b/board/armltd/corstone500/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_CORSTONE500
+
+config SYS_BOARD
+	default "corstone500"
+
+config SYS_VENDOR
+	default "armltd"
+
+config SYS_CONFIG_NAME
+	default "corstone500"
+
+endif
diff --git a/board/armltd/corstone500/Makefile b/board/armltd/corstone500/Makefile
new file mode 100644
index 000000000000..6598fdd3ae0d
--- /dev/null
+++ b/board/armltd/corstone500/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# (C) Copyright 2022 ARM Limited
+# (C) Copyright 2022 Linaro
+# Rui Miguel Silva <rui.silva@linaro.org>
+#
+
+obj-y := corstone500.o
diff --git a/board/armltd/corstone500/corstone500.c b/board/armltd/corstone500/corstone500.c
new file mode 100644
index 000000000000..e878f5c6a521
--- /dev/null
+++ b/board/armltd/corstone500/corstone500.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2022 ARM Limited
+ * (C) Copyright 2022 Linaro
+ * Rui Miguel Silva <rui.silva@linaro.org>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/platform_data/serial_pl01x.h>
+#include <malloc.h>
+#include <asm/global_data.h>
+
+static const struct pl01x_serial_plat serial_platdata = {
+	.base = V2M_UART0,
+	.type = TYPE_PL011,
+	.clock = CONFIG_PL011_CLOCK,
+};
+
+U_BOOT_DRVINFO(corstone500_serials) = {
+	.name = "serial_pl01x",
+	.plat = &serial_platdata,
+};
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+}
+
diff --git a/configs/corstone500_defconfig b/configs/corstone500_defconfig
new file mode 100644
index 000000000000..e475cbe7e40d
--- /dev/null
+++ b/configs/corstone500_defconfig
@@ -0,0 +1,41 @@
+CONFIG_ARM=y
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_TARGET_CORSTONE500=y
+CONFIG_SYS_TEXT_BASE=0x88000000
+CONFIG_SYS_MALLOC_LEN=0x840000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x40000
+CONFIG_SYS_PROMPT="corstone500# "
+CONFIG_IDENT_STRING=" corstone500 aarch32"
+CONFIG_SYS_LOAD_ADDR=0x90000000
+CONFIG_SYS_MEMTEST_START=0x80000000
+CONFIG_SYS_MEMTEST_END=0xff000000
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x83f00000
+CONFIG_SUPPORT_RAW_INITRD=y
+CONFIG_BOOTDELAY=1
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyAMA0 earlycon=pl011,0x1a200000 root=/dev/ram0 rw loglevel=9"
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_CONSOLE is not set
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_XIMG is not set
+# CONFIG_CMD_EDITENV is not set
+# CONFIG_CMD_ENV_EXISTS is not set
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_ARMFLASH=y
+# CONFIG_CMD_LOADS is not set
+# CONFIG_CMD_ITEST is not set
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_FAT=y
+CONFIG_DM=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_DM_SERIAL=y
+CONFIG_OF_LIBFDT=y
diff --git a/include/configs/corstone500.h b/include/configs/corstone500.h
new file mode 100644
index 000000000000..416f5fa4399d
--- /dev/null
+++ b/include/configs/corstone500.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2022 ARM Limited
+ * (C) Copyright 2022 Linaro
+ * Rui Miguel Silva <rui.silva@linaro.org>
+ *
+ * Configuration for Cortex-A5 Corstone500. Parts were derived from other ARM
+ * configurations.
+ */
+
+#ifndef __CORSTONE500_H
+#define __CORSTONE500_H
+
+/* Generic Timer Definitions */
+#define CONFIG_SYS_HZ_CLOCK	7500000
+#define CONFIG_SYS_HZ		1000
+#define COUNTER_FREQUENCY	CONFIG_SYS_HZ_CLOCK
+
+#ifdef CONFIG_CORSTONE500_MEMORY_MAP_EXTENDED
+#define V2M_SRAM0		0x00010000
+#define V2M_SRAM1		0x02200000
+#define V2M_QSPI		0x0a800000
+#else
+#define V2M_SRAM0		0x00000000
+#define V2M_SRAM1		0x02000000
+#define V2M_QSPI		0x08000000
+#endif
+
+#define V2M_DEBUG		0x10000000
+#define V2M_BASE_PERIPH		0x1a000000
+#define V2M_A5_PERIPH		0x1c000000
+#define V2M_L2CC_PERIPH		0x1c010000
+
+#define V2M_MASTER_EXPANSION0	0x40000000
+#define V2M_MASTER_EXPANSION1	0x60000000
+
+#define V2M_BASE		0x80000000
+
+#define V2M_PERIPH_OFFSET(x)  (x << 16)
+
+#define V2M_SYSID		(V2M_BASE_PERIPH)
+#define V2M_SYCTL		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(1))
+#define V2M_COUNTER_CTL		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(2))
+#define V2M_COUNTER_READ	(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(3))
+#define V2M_TIMER_CTL		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(4))
+#define V2M_TIMER0		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(5))
+
+#define V2M_WATCHDOG_CTL	(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(16))
+#define V2M_WATCHDOG_REFRESH	(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(17))
+
+#define V2M_UART0		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(32))
+#define V2M_UART1		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(33))
+
+#define V2M_RTC			(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(34))
+#define V2M_TRNG		(V2M_BASE_PERIPH + V2M_PERIPH_OFFSET(35))
+
+/* PL011 Serial Configuration */
+#define CONFIG_CONS_INDEX	0
+#define CONFIG_PL011_CLOCK	7500000
+
+/* Physical Memory Map */
+#define PHYS_SDRAM_1		(V2M_BASE)
+
+/* Top 16MB reserved for secure world use */
+#define DRAM_SEC_SIZE		0x01000000
+#define PHYS_SDRAM_1_SIZE	(0x80000000 - DRAM_SEC_SIZE)
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_SDRAM_BASE	PHYS_SDRAM_1
+
+#define CONFIG_SYS_MMIO_TIMER
+
+#define CONFIG_EXTRA_ENV_SETTINGS     \
+				"kernel_name=Image\0"           \
+				"kernel_addr=0x80f00000\0"      \
+				"initrd_name=ramdisk.img\0"     \
+				"initrd_addr=0x84000000\0"      \
+				"fdt_name=devtree.dtb\0"        \
+				"fdt_addr=0x83000000\0"         \
+				"fdt_high=0xffffffff\0"         \
+				"initrd_high=0xffffffff\0"
+
+#define CONFIG_BOOTCOMMAND	"echo copy to RAM...; " \
+				"cp.b 0x80100000 $kernel_addr 0xb00000; " \
+				"cp.b 0x80d00000 $initrd_addr 0x800000; " \
+				"bootz $kernel_addr $initrd_addr:0x800000 $fdt_addr"
+
+/* Monitor Command Prompt */
+#define CONFIG_SYS_FLASH_BASE		0x80000000
+/* Store environment at top of flash */
+#define CONFIG_ENV_ADDR			0x0a7c0000
+#define CONFIG_ENV_SECT_SIZE		0x0040000
+
+#define CONFIG_SYS_FLASH_CFI		1
+#define CONFIG_FLASH_CFI_DRIVER		1
+#define CONFIG_SYS_FLASH_CFI_WIDTH	FLASH_CFI_32BIT
+#define CONFIG_SYS_MAX_FLASH_BANKS	1
+
+#define CONFIG_SYS_FLASH_EMPTY_INFO   /* flinfo indicates empty blocks */
+#define FLASH_MAX_SECTOR_SI		0x00040000
+#define CONFIG_ENV_IS_IN_FLASH		1
+#endif
-- 
2.38.1