u-boot/arch/arm/include/asm/arch-am33xx/hardware_am43xx.h
Lokesh Vutla d3daba10f1 ARM: AM43xx: EPOS_EVM: Add support for LPDDR2
AM4372 EPOS EVM has 1GB LPDDR2(Part no: MT42L256M32D2LG-25 WT:A)
Adding LPDDR2 init sequence and register details for the same.
Below is the brief description of LPDDR2 init sequence:
-> Configure VTP
-> Configure DDR IO settings
-> Disable initialization and refreshes until EMIF registers are programmed.
-> Program Timing registers
-> Program PHY control and Temp alert and ZQ config registers.
-> Enable initialization and refreshes and configure SDRAM CONFIG register
-> Wait till initialization is complete and the configure MR registers.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2013-12-18 21:14:44 -05:00

80 lines
2.1 KiB
C

/*
* hardware_am43xx.h
*
* AM43xx hardware specific header
*
* Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __AM43XX_HARDWARE_AM43XX_H
#define __AM43XX_HARDWARE_AM43XX_H
/* Module base addresses */
/* UART Base Address */
#define UART0_BASE 0x44E09000
/* GPIO Base address */
#define GPIO2_BASE 0x481AC000
/* Watchdog Timer */
#define WDT_BASE 0x44E35000
/* Control Module Base Address */
#define CTRL_BASE 0x44E10000
#define CTRL_DEVICE_BASE 0x44E10600
/* PRCM Base Address */
#define PRCM_BASE 0x44DF0000
#define CM_WKUP 0x44DF2800
#define CM_PER 0x44DF8800
#define CM_DPLL 0x44DF4200
#define CM_RTC 0x44DF8500
#define PRM_RSTCTRL (PRCM_BASE + 0x4000)
#define PRM_RSTST (PRM_RSTCTRL + 4)
/* VTP Base address */
#define VTP0_CTRL_ADDR 0x44E10E0C
#define VTP1_CTRL_ADDR 0x48140E10
/* DDR Base address */
#define DDR_PHY_CMD_ADDR 0x44E12000
#define DDR_PHY_DATA_ADDR 0x44E120C8
#define DDR_PHY_CMD_ADDR2 0x47C0C800
#define DDR_PHY_DATA_ADDR2 0x47C0C8C8
#define DDR_DATA_REGS_NR 2
/* CPSW Config space */
#define CPSW_MDIO_BASE 0x4A101000
/* RTC base address */
#define RTC_BASE 0x44E3E000
/* USB Clock Control */
#define PRM_PER_USB_OTG_SS0_CLKCTRL (CM_PER + 0x260)
#define PRM_PER_USB_OTG_SS1_CLKCTRL (CM_PER + 0x268)
#define USBOTGSSX_CLKCTRL_MODULE_EN (1 << 1)
#define USBOTGSSX_CLKCTRL_OPTFCLKEN_REFCLK960 (1 << 8)
#define PRM_PER_USBPHYOCP2SCP0_CLKCTRL (CM_PER + 0x5b8)
#define PRM_PER_USBPHYOCP2SCP1_CLKCTRL (CM_PER + 0x5c0)
#define USBPHYOCPSCP_MODULE_EN (1 << 1)
#define CM_DEVICE_INST 0x44df4100
/* Control status register */
#define CTRL_CRYSTAL_FREQ_SRC_MASK (1 << 31)
#define CTRL_CRYSTAL_FREQ_SRC_SHIFT 31
#define CTRL_CRYSTAL_FREQ_SELECTION_MASK (0x3 << 29)
#define CTRL_CRYSTAL_FREQ_SELECTION_SHIFT 29
#define CTRL_SYSBOOT_15_14_MASK (0x3 << 22)
#define CTRL_SYSBOOT_15_14_SHIFT 22
#define CTRL_CRYSTAL_FREQ_SRC_SYSBOOT 0x0
#define CTRL_CRYSTAL_FREQ_SRC_EFUSE 0x1
#define NUM_CRYSTAL_FREQ 0x4
#endif /* __AM43XX_HARDWARE_AM43XX_H */