u-boot/arch/arm/include/asm/arch-omap4/omap4.h
Aneesh V 7ca3f9c568 ARMV7: OMAP4: Calculate SDRAM size
Calculate the SDRAM size from DMM configuration registers instead of using
hard-coded values. This gives correct values for all different boards.

It's assumed that DMM sections do not overlap memory areas.

Signed-off-by: Aneesh V <aneesh@ti.com>
Tested-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-09-28 13:54:43 -04:00

131 lines
3.6 KiB
C

/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* Authors:
* Aneesh V <aneesh@ti.com>
*
* Derived from OMAP3 work by
* Richard Woodruff <r-woodruff2@ti.com>
* Syed Mohammed Khasim <x0khasim@ti.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _OMAP4_H_
#define _OMAP4_H_
#if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__))
#include <asm/types.h>
#endif /* !(__KERNEL_STRICT_NAMES || __ASSEMBLY__) */
/*
* L4 Peripherals - L4 Wakeup and L4 Core now
*/
#define OMAP44XX_L4_CORE_BASE 0x4A000000
#define OMAP44XX_L4_WKUP_BASE 0x4A300000
#define OMAP44XX_L4_PER_BASE 0x48000000
#define OMAP44XX_DRAM_ADDR_SPACE_START 0x80000000
#define OMAP44XX_DRAM_ADDR_SPACE_END 0xD0000000
/* CONTROL */
#define CTRL_BASE (OMAP44XX_L4_CORE_BASE + 0x2000)
#define CONTROL_PADCONF_CORE (OMAP44XX_L4_CORE_BASE + 0x100000)
#define CONTROL_PADCONF_WKUP (OMAP44XX_L4_CORE_BASE + 0x31E000)
/* UART */
#define UART1_BASE (OMAP44XX_L4_PER_BASE + 0x6a000)
#define UART2_BASE (OMAP44XX_L4_PER_BASE + 0x6c000)
#define UART3_BASE (OMAP44XX_L4_PER_BASE + 0x20000)
/* General Purpose Timers */
#define GPT1_BASE (OMAP44XX_L4_WKUP_BASE + 0x18000)
#define GPT2_BASE (OMAP44XX_L4_PER_BASE + 0x32000)
#define GPT3_BASE (OMAP44XX_L4_PER_BASE + 0x34000)
/* Watchdog Timer2 - MPU watchdog */
#define WDT2_BASE (OMAP44XX_L4_WKUP_BASE + 0x14000)
/* 32KTIMER */
#define SYNC_32KTIMER_BASE (OMAP44XX_L4_WKUP_BASE + 0x4000)
/* GPMC */
#define OMAP44XX_GPMC_BASE 0x50000000
/* DMM */
#define OMAP44XX_DMM_BASE 0x4E000000
#define DMM_LISA_MAP_BASE (OMAP44XX_DMM_BASE + 0x40)
#define DMM_LISA_MAP_SYS_SIZE_MASK (7 << 20)
#define DMM_LISA_MAP_SYS_SIZE_SHIFT 20
#define DMM_LISA_MAP_SYS_ADDR_MASK (0xFF << 24)
/*
* Hardware Register Details
*/
/* Watchdog Timer */
#define WD_UNLOCK1 0xAAAA
#define WD_UNLOCK2 0x5555
/* GP Timer */
#define TCLR_ST (0x1 << 0)
#define TCLR_AR (0x1 << 1)
#define TCLR_PRE (0x1 << 5)
/*
* PRCM
*/
/* PRM */
#define PRM_BASE 0x4A306000
#define PRM_DEVICE_BASE (PRM_BASE + 0x1B00)
#define PRM_RSTCTRL PRM_DEVICE_BASE
#define PRM_RSTCTRL_RESET 0x01
#ifndef __ASSEMBLY__
struct s32ktimer {
unsigned char res[0x10];
unsigned int s32k_cr; /* 0x10 */
};
#endif /* __ASSEMBLY__ */
/*
* Non-secure SRAM Addresses
* Non-secure RAM starts at 0x40300000 for GP devices. But we keep SRAM_BASE
* at 0x40304000(EMU base) so that our code works for both EMU and GP
*/
#define NON_SECURE_SRAM_START 0x40304000
#define NON_SECURE_SRAM_END 0x4030E000 /* Not inclusive */
/* base address for indirect vectors (internal boot mode) */
#define SRAM_ROM_VECT_BASE 0x4030D000
/* Temporary SRAM stack used while low level init is done */
#define LOW_LEVEL_SRAM_STACK NON_SECURE_SRAM_END
/*
* OMAP4 real hardware:
* TODO: Change this to the IDCODE in the hw regsiter
*/
#define CPU_OMAP4430_ES10 1
#define CPU_OMAP4430_ES20 2
#endif