include/plat/arm/board/common/v2m_def.h

/*
 * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
#ifndef V2M_DEF_H
#define V2M_DEF_H

#include <lib/utils_def.h>

/* Base address of all V2M */
#ifdef PLAT_V2M_OFFSET
#define V2M_OFFSET			PLAT_V2M_OFFSET
#else
#define V2M_OFFSET			UL(0)
#endif

/* V2M motherboard system registers & offsets */
#define V2M_SYSREGS_BASE		UL(0x1c010000)
#define V2M_SYS_ID			UL(0x0)
#define V2M_SYS_SWITCH			UL(0x4)
#define V2M_SYS_LED			UL(0x8)
#define V2M_SYS_NVFLAGS			UL(0x38)
#define V2M_SYS_NVFLAGSSET		UL(0x38)
#define V2M_SYS_NVFLAGSCLR		UL(0x3c)
#define V2M_SYS_CFGDATA			UL(0xa0)
#define V2M_SYS_CFGCTRL			UL(0xa4)
#define V2M_SYS_CFGSTATUS		UL(0xa8)

#define V2M_CFGCTRL_START		BIT_32(31)
#define V2M_CFGCTRL_RW			BIT_32(30)
#define V2M_CFGCTRL_FUNC_SHIFT		20
#define V2M_CFGCTRL_FUNC(fn)		((fn) << V2M_CFGCTRL_FUNC_SHIFT)
#define V2M_FUNC_CLK_GEN		U(0x01)
#define V2M_FUNC_TEMP			U(0x04)
#define V2M_FUNC_DB_RESET		U(0x05)
#define V2M_FUNC_SCC_CFG		U(0x06)
#define V2M_FUNC_SHUTDOWN		U(0x08)
#define V2M_FUNC_REBOOT			U(0x09)

/* NVFLAGS in the V2M motherboard which is preserved after a watchdog reset */
 #define V2M_SYS_NVFLAGS_ADDR		(V2M_SYSREGS_BASE + V2M_SYS_NVFLAGS)

/*
 * V2M sysled bit definitions. The values written to this
 * register are defined in arch.h & runtime_svc.h. Only
 * used by the primary cpu to diagnose any cold boot issues.
 *
 * SYS_LED[0]   - Security state (S=0/NS=1)
 * SYS_LED[2:1] - Exception Level (EL3-EL0)
 * SYS_LED[7:3] - Exception Class (Sync/Async & origin)
 *
 */
#define V2M_SYS_LED_SS_SHIFT		0x0
#define V2M_SYS_LED_EL_SHIFT		0x1
#define V2M_SYS_LED_EC_SHIFT		0x3

#define V2M_SYS_LED_SS_MASK		U(0x1)
#define V2M_SYS_LED_EL_MASK		U(0x3)
#define V2M_SYS_LED_EC_MASK		U(0x1f)

/* V2M sysid register bits */
#define V2M_SYS_ID_REV_SHIFT		28
#define V2M_SYS_ID_HBI_SHIFT		16
#define V2M_SYS_ID_BLD_SHIFT		12
#define V2M_SYS_ID_ARCH_SHIFT		8
#define V2M_SYS_ID_FPGA_SHIFT		0

#define V2M_SYS_ID_REV_MASK		U(0xf)
#define V2M_SYS_ID_HBI_MASK		U(0xfff)
#define V2M_SYS_ID_BLD_MASK		U(0xf)
#define V2M_SYS_ID_ARCH_MASK		U(0xf)
#define V2M_SYS_ID_FPGA_MASK		U(0xff)

#define V2M_SYS_ID_BLD_LENGTH		4


/* NOR Flash */
#define V2M_FLASH0_BASE			(V2M_OFFSET + UL(0x08000000))
#define V2M_FLASH0_SIZE			UL(0x04000000)
#define V2M_FLASH_BLOCK_SIZE		UL(0x00040000) /* 256 KB */

#define V2M_IOFPGA_BASE			(V2M_OFFSET + UL(0x1c000000))
#define V2M_IOFPGA_SIZE			UL(0x03000000)

/* PL011 UART related constants */
#define V2M_IOFPGA_UART0_BASE		(V2M_OFFSET + UL(0x1c090000))
#define V2M_IOFPGA_UART1_BASE		(V2M_OFFSET + UL(0x1c0a0000))
#define V2M_IOFPGA_UART2_BASE		(V2M_OFFSET + UL(0x1c0b0000))
#define V2M_IOFPGA_UART3_BASE		(V2M_OFFSET + UL(0x1c0c0000))

#define V2M_IOFPGA_UART0_CLK_IN_HZ	24000000
#define V2M_IOFPGA_UART1_CLK_IN_HZ	24000000
#define V2M_IOFPGA_UART2_CLK_IN_HZ	24000000
#define V2M_IOFPGA_UART3_CLK_IN_HZ	24000000

/* SP804 timer related constants */
#define V2M_SP804_TIMER0_BASE		(V2M_OFFSET + UL(0x1C110000))
#define V2M_SP804_TIMER1_BASE		(V2M_OFFSET + UL(0x1C120000))

/* SP810 controller */
#define V2M_SP810_BASE			(V2M_OFFSET + UL(0x1c020000))
#define V2M_SP810_CTRL_TIM0_SEL		BIT_32(15)
#define V2M_SP810_CTRL_TIM1_SEL		BIT_32(17)
#define V2M_SP810_CTRL_TIM2_SEL		BIT_32(19)
#define V2M_SP810_CTRL_TIM3_SEL		BIT_32(21)

/*
 * The flash can be mapped either as read-only or read-write.
 *
 * If it is read-write then it should also be mapped as device memory because
 * NOR flash programming involves sending a fixed, ordered sequence of commands.
 *
 * If it is read-only then it should also be mapped as:
 * - Normal memory, because reading from NOR flash is transparent, it is like
 *   reading from RAM.
 * - Non-executable by default. If some parts of the flash need to be executable
 *   then platform code is responsible for re-mapping the appropriate portion
 *   of it as executable.
 */
#define V2M_MAP_FLASH0_RW		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
						V2M_FLASH0_SIZE,	\
						MT_DEVICE | MT_RW | MT_SECURE)

#define V2M_MAP_FLASH0_RO		MAP_REGION_FLAT(V2M_FLASH0_BASE,\
						V2M_FLASH0_SIZE,	\
						MT_RO_DATA | MT_SECURE)

#define V2M_MAP_IOFPGA			MAP_REGION_FLAT(V2M_IOFPGA_BASE,\
						V2M_IOFPGA_SIZE,		\
						MT_DEVICE | MT_RW | MT_SECURE)

/* Region equivalent to V2M_MAP_IOFPGA suitable for mapping at EL0 */
#define V2M_MAP_IOFPGA_EL0		MAP_REGION_FLAT(		\
						V2M_IOFPGA_BASE,	\
						V2M_IOFPGA_SIZE,	\
						MT_DEVICE | MT_RW | MT_SECURE | MT_USER)


#endif /* V2M_DEF_H */