| /******************************************************************************* |
| Copyright (C) Marvell International Ltd. and its affiliates |
| |
| ******************************************************************************** |
| Marvell GPL License Option |
| |
| If you received this File from Marvell, you may opt to use, redistribute and/or |
| modify this File in accordance with the terms and conditions of the General |
| Public License Version 2, June 1991 (the "GPL License"), a copy of which is |
| available along with the File in the license.txt file or by writing to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or |
| on the worldwide web at http://www.gnu.org/licenses/gpl.txt. |
| |
| THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED |
| WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY |
| DISCLAIMED. The GPL License provides additional details about this warranty |
| disclaimer. |
| |
| *******************************************************************************/ |
| |
| #define MV_ASMLANGUAGE |
| #include "mvOsAsm.h" |
| #include <config.h> |
| #include <version.h> |
| #include "mvBoardEnvSpec.h" |
| #include "mvCtrlEnvSpec.h" |
| #include "mvCpuIfRegs.h" |
| #include "ddr2/mvDramIfRegs.h" |
| #include "mvCtrlEnvAsm.h" |
| #if defined(MV_INC_BOARD_SPI_FLASH) |
| #include "spi/mvSpiSpec.h" |
| #endif |
| |
| |
| /* |
| get_board_id - get board id from twsi eeprom |
| input : r5 - board id data start offset in the eeprom |
| |
| */ |
| .globl lowlevel_init |
| |
| /************************************************/ |
| /* lowlevel_init * |
| /************************************************/ |
| |
| lowlevel_init: |
| |
| /* change reg base to 0xf1000000 */ |
| ldr r4, =MV_REGS |
| MV_DV_REG_WRITE_ASM(r4, r1, 0x200F0) |
| |
| /* save Link Registers */ |
| mov r2, lr |
| |
| /* Check if L2 exists in Sample-At-Reset register */ |
| MV_REG_READ_ASM(r4, r1, 0x18230) |
| and r1, r1, #0x40000000 |
| cmp r1, #0x0 |
| |
| /* invalidate L2 cache */ |
| mov r0, #0 |
| mcr p15, 1, r0, c15, c11, 0 |
| |
| /* |
| ldr r4, =0x1b1b1b9b |
| MV_REG_WRITE_ASM(r4, r1, 0x100e0) |
| ldr r4, =0xbbbbbbbb |
| MV_REG_WRITE_ASM(r4, r1, 0x20134) |
| ldr r4, =0x00bbbbbb |
| MV_REG_WRITE_ASM(r4, r1, 0x20138) |
| */ |
| l2_not_exist: |
| bl _i2cInit |
| |
| /* Initialize BUS-L to DDR configuration parameters */ |
| /* Must be done prior to DDR operation */ |
| #if !defined(MV_BOOTROM) |
| bl _mvCpuIfPreInit |
| #endif |
| |
| #if defined(MV_INC_BOARD_SPI_FLASH) |
| /* configure the Prescale of SPI clk Tclk = 166MHz */ |
| MV_REG_READ_ASM (r6, r1, MV_SPI_IF_CONFIG_REG(0)) |
| and r6, r6, #~MV_SPI_CLK_PRESCALE_MASK |
| orr r6, r6, #0x14 |
| MV_REG_WRITE_ASM (r6, r1, MV_SPI_IF_CONFIG_REG(0)) |
| #endif |
| |
| #if !defined(MV_INC_BOARD_DDIM) |
| #if !defined(MV_BOOTROM) |
| /* Call DRAM static initialization */ |
| bl _mvDramIfStaticInit |
| #else |
| b done |
| #endif |
| #else /* #if !defined(MV_INC_BOARD_DDIM) */ |
| |
| /* Call DRAM basic initialization to allow C runtime stack */ |
| bl _mvDramIfBasicInit |
| |
| b done |
| #endif /* #if !defined(MV_INC_BOARD_DDIM) */ |
| done: |
| mov lr, r2 |
| mov pc, lr |
