--- /dev/null
+/*******************************************************************************
+Copyright (C) Marvell International Ltd. and its affiliates
+
+This software file (the "File") is owned and distributed by Marvell
+International Ltd. and/or its affiliates ("Marvell") under the following
+alternative licensing terms. Once you have made an election to distribute the
+File under one of the following license alternatives, please (i) delete this
+introductory statement regarding license alternatives, (ii) delete the two
+license alternatives that you have not elected to use and (iii) preserve the
+Marvell copyright notice above.
+
+********************************************************************************
+Marvell Commercial License Option
+
+If you received this File from Marvell and you have entered into a commercial
+license agreement (a "Commercial License") with Marvell, the File is licensed
+to you under the terms of the applicable Commercial License.
+
+********************************************************************************
+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.
+********************************************************************************
+Marvell BSD License Option
+
+If you received this File from Marvell, you may opt to use, redistribute and/or
+modify this File under the following licensing terms.
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the name of Marvell nor the names of its contributors may be
+ used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*******************************************************************************/
+
+#define MV_ASMLANGUAGE
+#include "mvSysHwConfig.h"
+#include "mvOsAsm.h"
+#include "mvBoardEnvSpec.h"
+#include "mvCpuIfRegs.h"
+#include "mvDramIfConfig.h"
+#include "mvDramIfRegs.h"
+#include "pex/mvPexRegs.h"
+#include "pci/mvPciRegs.h"
+#include "mvCtrlEnvSpec.h"
+#include "mvCtrlEnvAsm.h"
+#include "cpu/mvCpuArm.h"
+#include "mvCommon.h"
+
+/* defines */
+
+#if !defined(MV_INC_BOARD_DDIM)
+.globl dramBoot1
+dramBoot1:
+ .word 0
+
+/******************************************************************************
+*
+*
+*
+*
+*******************************************************************************/
+#if defined(DB_PRPMC) || defined(DB_PEX_PCI) || defined(DB_MNG)
+
+/* PEX_PCI and PRPMC boards 256 MB*/
+#define STATIC_SDRAM0_BANK0_SIZE 0x0fff0001
+#define STATIC_SDRAM_CONFIG 0x03248400
+#define STATIC_SDRAM_MODE 0x62
+#define STATIC_DUNIT_CTRL_LOW 0x4041000
+#define STATIC_SDRAM_ADDR_CTRL 0x00000020
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11602220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x0000030F
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x0
+#define STATIC_SDRAM_ODT_CTRL_HI 0x0
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x0
+#define STATIC_SDRAM_EXT_MODE 0x0
+
+#elif defined(DB_FPGA)
+
+/* FPGA DC boards 256 MB*/
+#define STATIC_SDRAM0_BANK0_SIZE 0x0fff0001
+#define STATIC_SDRAM_CONFIG 0x03208400 /* 32bit */
+#define STATIC_SDRAM_MODE 0x22
+#define STATIC_DUNIT_CTRL_LOW 0x03041000
+#define STATIC_SDRAM_ADDR_CTRL 0x00000020
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11112220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x0000000D
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x0
+#define STATIC_SDRAM_ODT_CTRL_HI 0x0
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x0
+#define STATIC_SDRAM_EXT_MODE 0x1
+
+#elif defined(RD_88F6183GP) || defined(DB_CUSTOMER)
+
+/* Customer 1 DDR2 2 devices 512Mbit by 16 bit */
+#define STATIC_SDRAM0_BANK0_SIZE 0x07ff0001
+#define STATIC_SDRAM_CONFIG 0x03158400
+#define STATIC_SDRAM_MODE 0x452
+#define STATIC_DUNIT_CTRL_LOW 0x06041000
+#define STATIC_SDRAM_ADDR_CTRL 0x00000020
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11912220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x00000502
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x00010000
+#define STATIC_SDRAM_ODT_CTRL_HI 0x00000002
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x00000601
+#define STATIC_SDRAM_EXT_MODE 0x00000440
+
+
+#elif defined(RD_88F6183AP)
+
+/* DDR2 1 devices 512Mbit by 16 bit */
+#define STATIC_SDRAM0_BANK0_SIZE 0x03ff0001
+#define STATIC_SDRAM_CONFIG 0x1f154400
+#define STATIC_SDRAM_MODE 0x432
+#define STATIC_DUNIT_CTRL_LOW 0x04041000
+#define STATIC_SDRAM_ADDR_CTRL 0x00000020
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11912220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x00000502
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x00010000
+#define STATIC_SDRAM_ODT_CTRL_HI 0x00000002
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x00000601
+#define STATIC_SDRAM_EXT_MODE 0x00000440
+
+/* 6082L MARVELL DIMM */
+#elif defined(DB_88F6082LBP)
+#define STATIC_SDRAM0_BANK0_SIZE 0x07ff0001
+#define STATIC_SDRAM_CONFIG 0x7f158400
+#define STATIC_SDRAM_MODE 0x432
+#define STATIC_DUNIT_CTRL_LOW 0x04041040
+#define STATIC_SDRAM_ADDR_CTRL 0x00000020
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11612220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x00000501
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x00010000
+#define STATIC_SDRAM_ODT_CTRL_HI 0x00000002
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x00000a01
+#define STATIC_SDRAM_EXT_MODE 0x00000440
+
+#elif defined(RD_88W8660_AP82S)
+
+/* Shark RD */
+
+#if defined(MV_DRAM_32M)
+#define STATIC_SDRAM0_BANK0_SIZE 0x01ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x00000010
+#elif defined(MV_DRAM_16M)
+
+#define STATIC_SDRAM0_BANK0_SIZE 0x00ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x00000000
+
+#else
+#error "NO DDR size selected"
+#endif
+
+#define STATIC_SDRAM_CONFIG 0x03144400
+#define STATIC_SDRAM_MODE 0x62
+#define STATIC_DUNIT_CTRL_LOW 0x4041000
+
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11602220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x0000040b
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x0
+#define STATIC_SDRAM_ODT_CTRL_HI 0x0
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x0
+#define STATIC_SDRAM_EXT_MODE 0x0
+
+#elif defined(RD_88W8660)
+
+/* Shark RD */
+#define STATIC_SDRAM0_BANK0_SIZE 0x03ff0001
+#define STATIC_SDRAM_CONFIG 0x03144400
+#define STATIC_SDRAM_MODE 0x62
+#define STATIC_DUNIT_CTRL_LOW 0x4041000
+#define STATIC_SDRAM_ADDR_CTRL 0x00000010
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11602220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x0000040b
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x0
+#define STATIC_SDRAM_ODT_CTRL_HI 0x0
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x0
+#define STATIC_SDRAM_EXT_MODE 0x0
+
+#else /* NAS */
+
+
+#if defined(RD_88F5182)
+
+#if defined(MV_88F5082)
+#define STATIC_SDRAM0_BANK0_SIZE 0x3ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x20
+#else
+#define STATIC_SDRAM0_BANK0_SIZE 0x7ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x20
+#endif
+
+#elif defined(RD_88F5182_3)
+
+#if defined(MV_88F5082)
+#define STATIC_SDRAM0_BANK0_SIZE 0x3ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x20
+#else
+#define STATIC_SDRAM0_BANK0_SIZE 0x7ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x20
+#endif
+
+#else
+
+#define STATIC_SDRAM0_BANK0_SIZE 0x1ff0001
+#define STATIC_SDRAM_ADDR_CTRL 0x0
+
+#endif
+
+#if defined(MV_88F5082)
+#define STATIC_SDRAM_CONFIG 0x3144400
+#else
+#define STATIC_SDRAM_CONFIG 0x3148400
+#endif
+#define STATIC_SDRAM_MODE 0x62
+#define STATIC_DUNIT_CTRL_LOW 0x4041000
+#define STATIC_SDRAM_TIME_CTRL_LOW 0x11602220
+#define STATIC_SDRAM_TIME_CTRL_HI 0x40c
+#define STATIC_SDRAM_ODT_CTRL_LOW 0x0
+#define STATIC_SDRAM_ODT_CTRL_HI 0x0
+#define STATIC_SDRAM_DUNIT_ODT_CTRL 0x0
+#define STATIC_SDRAM_EXT_MODE 0x0
+
+#endif
+
+ .globl _mvDramIfStaticInit
+_mvDramIfStaticInit:
+
+ mov r11, LR /* Save link register */
+ mov r10, r2
+
+ /* If we boot from NAND jump to DRAM sddress */
+
+ mov r5, #1
+ ldr r6, =dramBoot1
+ str r5, [r6] /* We started executing from DRAM */
+
+ ldr r6, dramBoot1
+ cmp r6, #0
+ bne 1f
+
+
+ /* set all dram windows to 0 */
+ mov r6, #0
+ MV_REG_WRITE_ASM(r6, r5, 0x1504)
+ MV_REG_WRITE_ASM(r6, r5, 0x150c)
+ MV_REG_WRITE_ASM(r6, r5, 0x1514)
+ MV_REG_WRITE_ASM(r6, r5, 0x151c)
+
+ /* set all dram configuration in temp registers */
+ ldr r6, = STATIC_SDRAM0_BANK0_SIZE
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG0)
+ ldr r6, = STATIC_SDRAM_CONFIG
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG1)
+ ldr r6, = STATIC_SDRAM_MODE
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG2)
+ ldr r6, = STATIC_DUNIT_CTRL_LOW
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG3)
+ ldr r6, = STATIC_SDRAM_ADDR_CTRL
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG4)
+ ldr r6, = STATIC_SDRAM_TIME_CTRL_LOW
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG5)
+ ldr r6, = STATIC_SDRAM_TIME_CTRL_HI
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG6)
+ ldr r6, = STATIC_SDRAM_ODT_CTRL_LOW
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG7)
+ ldr r6, = STATIC_SDRAM_ODT_CTRL_HI
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG8)
+ ldr r6, = STATIC_SDRAM_DUNIT_ODT_CTRL
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG9)
+ ldr r6, = STATIC_SDRAM_EXT_MODE
+ MV_REG_WRITE_ASM(r6, r5, DRAM_BUF_REG10)
+
+ mov sp, #0
+ bl _mvDramIfConfig
+1:
+ mov r2, r10
+ mov PC, r11 /* r11 is saved link register */
+
+#else /* #if !defined(MV_INC_BOARD_DDIM) */
+
+.globl dramBoot1
+dramBoot1:
+ .word 0
+
+/*******************************************************************************
+* mvDramIfBasicInit - Basic initialization of DRAM interface
+*
+* DESCRIPTION:
+* The function will initialize the DRAM for basic usage. The function
+* will use the TWSI assembly API to extract DIMM parameters according
+* to which DRAM interface will be initialized.
+* The function referes to the following DRAM parameters:
+* 1) DIMM is registered or not.
+* 2) DIMM width detection.
+* 3) DIMM density.
+*
+* INPUT:
+* r3 - required size for initial DRAM.
+*
+* OUTPUT:
+* None.
+*
+* RETURN:
+* None.
+*
+* Note:
+* r4 holds I2C EEPROM address
+* r5 holds SDRAM register base address
+* r7 holds returned values
+* r8 holds SDRAM various configuration registers value.
+* r11 holds return function address.
+*******************************************************************************/
+/* Setting the offsets of the I2C registers */
+#define NUM_OF_ROWS_OFFSET 3
+#define NUM_OF_COLS_OFFSET 4
+#define NUM_OF_RANKS 5
+#define SDRAM_WIDTH_OFFSET 13
+#define NUM_OF_BANKS_OFFSET 17
+#define SUPPORTED_CL_OFFSET 18
+#define DIMM_TYPE_INFO_OFFSET 20 /* DDR2 only */
+#define SDRAM_MODULES_ATTR_OFFSET 21
+
+#define DRAM_DEV_DENSITY_128M 0x080
+#define DRAM_DEV_DENSITY_256M 0x100
+#define DRAM_DEV_DENSITY_512M 0x200
+ .globl _mvDramIfBasicInit
+ .extern _i2cInit
+
+_mvDramIfBasicInit:
+
+ mov r11, LR /* Save link register */
+
+ mov r5, #1
+ ldr r8, =dramBoot1
+ str r5, [r8] /* We started executing from DRAM */
+
+ /* If we boot from NAND jump to DRAM sddress */
+ ldr r8, dramBoot1
+ cmp r8, #0
+ movne pc, r11
+
+
+
+ bl _i2cInit /* Initialize TWSI master */
+
+ /* Get default SDRAM Config values */
+ MV_REG_READ_ASM (r8, r5, SDRAM_CONFIG_REG)
+ bic r8, r8, #SDRAM_DCFG_MASK
+
+
+ /* Read device ID */
+ MV_CTRL_MODEL_GET_ASM(r4, r5);
+
+ /* Return if OrionN */
+ ldr r5, =MV_5180_DEV_ID
+ cmp r4, r5
+ beq cat_through_end
+
+ /* Return if Orion1 */
+ ldr r5, =MV_5181_DEV_ID
+ cmp r4, r5
+ beq cat_through_end
+
+ /* Return if Nas */
+ ldr r5, =MV_5182_DEV_ID
+ cmp r4, r5
+ beq cat_through_end
+
+ /* Return if Shark */
+ ldr r5, =MV_8660_DEV_ID
+ cmp r4, r5
+ beq cat_through_end
+
+ /* goto calcConfigReg if bigger than Orion2*/
+ ldr r5, =MV_5281_DEV_ID
+ cmp r4, r5
+ bne cat_through
+
+cat_through:
+ /* set cat through - for better performance - in orion2 b0 and higher*/
+ orr r8, r8, #SDRAM_CATTHR_EN
+
+cat_through_end:
+
+
+ /* Get registered/non registered info from DIMM */
+ bl _is_Registered
+ beq nonRegistered
+
+setRegistered:
+ orr r8, r8, #SDRAM_REGISTERED /* Set registered bit(17) */
+
+nonRegistered:
+ /* Get SDRAM width */
+ bl _get_width
+
+ orr r6, r8, #SDRAM_DCFG_X16_DEV /* x16 devices */
+ cmp r7, #16
+ beq setConfigReg
+
+ orr r6, r8, #SDRAM_DCFG_X8_DEV /* x8 devices */
+ cmp r7, #8
+ beq setConfigReg
+
+ /* This is an error. return */
+ b exit_ddrAutoConfig
+
+setConfigReg:
+ mov r8, r6
+ ldr r6, =SDRAM_CONFIG_DV
+ orr r8, r8, r6 /* Add default settings */
+ mov r6, r8 /* Do not swap r8 content */
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_CONFIG_REG)
+
+ /* Set maximum CL supported by DIMM */
+ bl _get_CAL
+
+ /* r7 is DIMM supported CAS (e.g: 3 --> 0x1C) */
+ clz r6, r7
+ rsb r6, r6, #31 /* r6 = the bit number of MAX CAS supported */
+
+ /* Check the DDR version */
+ tst r8, #SDRAM_DTYPE_DDR2
+ bne casDdr2
+
+casDdr1:
+ ldr r7, =3 /* stBurstDel field value */
+ ldr r8, =0x52 /* Assuming MAX CL = 1.5 */
+ cmp r6, #1 /* If CL = 1.5 break */
+ beq setModeReg
+
+ ldr r7, =3 /* stBurstDel field value */
+ ldr r8, =0x22 /* Assuming MAX CL = 2 */
+ cmp r6, #2 /* If CL = 2 break */
+ beq setModeReg
+
+ ldr r7, =4 /* stBurstDel field value */
+ ldr r8, =0x62 /* Assuming MAX CL = 2.5 */
+ cmp r6, #3 /* If CL = 2.5 break */
+ beq setModeReg
+
+ ldr r7, =4 /* stBurstDel field value */
+ ldr r8, =0x32 /* Assuming MAX CL = 3 */
+ cmp r6, #4 /* If CL = 3 break */
+ beq setModeReg
+
+ ldr r7, =5 /* stBurstDel field value */
+ ldr r8, =0x42 /* Assuming MAX CL = 4 */
+ cmp r6, #6 /* If CL = 4 break */
+ b setModeReg
+
+ b exit_ddrAutoConfig /* This is an error !! */
+
+casDdr2:
+ ldr r7, =4 /* stBurstDel field value */
+ ldr r8, =0x32 /* Assuming MAX CL = 3 */
+ cmp r6, #3 /* If CL = 3 break */
+ beq casDdr2Cont
+
+ ldr r7, =5 /* stBurstDel field value */
+ ldr r8, =0x42 /* Assuming MAX CL = 4 */
+ cmp r6, #4 /* If CL = 4 break */
+ beq casDdr2Cont
+
+ /* CL 5 currently unsupported. We use CL 4 instead */
+ ldr r7, =5 /* stBurstDel field value */
+ ldr r8, =0x42 /* Assuming MAX CL = 5 */
+ cmp r6, #5 /* If CL = 5 break */
+ beq casDdr2Cont
+
+ b exit_ddrAutoConfig /* This is an error !! */
+casDdr2Cont:
+ /* Write recovery for auto-precharge relevant only in DDR2 */
+ orr r8, r8, #0x400 /* Default value */
+
+setModeReg:
+ /* The CPU must not attempt to change the SDRAM Mode register setting */
+ /* prior to DRAM controller completion of the DRAM initialization */
+ /* sequence. To guarantee this restriction, it is recommended that */
+ /* the CPU sets the SDRAM Operation register to NOP command, performs */
+ /* read polling until the register is back in Normal operation value, */
+ /* and then sets SDRAM Mode register to it's new value. */
+
+ /* write 'nop' to SDRAM operation */
+ mov r6, #0x5 /* 'NOP' command */
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_OPERATION_REG)
+
+ /* poll SDRAM operation. Make sure its back to normal operation */
+_sdramOpPoll1:
+ ldr r6, [r5]
+ cmp r6, #0 /* '0' = Normal SDRAM Mode */
+ bne _sdramOpPoll1
+
+ /* Now its safe to write new value to SDRAM Mode register */
+ MV_REG_WRITE_ASM (r8, r5, SDRAM_MODE_REG)
+
+ /* Make the Dunit write the DRAM its new mode */
+ mov r6, #0x3 /* Mode Register Set command */
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_OPERATION_REG)
+
+ /* poll SDRAM operation. Make sure its back to normal operation */
+_sdramOpPoll2:
+ ldr r6, [r5]
+ cmp r6, #0 /* '0' = Normal SDRAM Mode */
+ bne _sdramOpPoll2
+
+ /* Set Dunit control register according to max CL detected */
+ /* If we use registered DIMM, add 1 to stBurstDel */
+ MV_REG_READ_ASM (r6, r5, SDRAM_CONFIG_REG)
+ tst r6, #SDRAM_REGISTERED
+ beq setDunitReg
+ add r7, r7, #1
+
+setDunitReg:
+ ldr r6, =SDRAM_DUNIT_CTRL_LOW_DV
+ orr r6, r6, r7, LSL #SDRAM_ST_BURST_DEL_OFFS
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_DUNIT_CTRL_REG)
+
+
+ /* DIMM density configuration*/
+ /* Density = (1 << (rowNum + colNum)) * dramWidth * dramBankNum */
+Density:
+ bl _getDensity
+ mov r8, r7
+ mov r8, r8, LSR #20 /* Move density 20 bits to the right */
+ /* For example 0x10000000 --> 0x1000 */
+
+ mov r6, #0x00
+ cmp r8, #DRAM_DEV_DENSITY_128M
+ beq densCont
+
+ mov r6, #0x10
+ cmp r8, #DRAM_DEV_DENSITY_256M
+ beq densCont
+
+ mov r6, #0x20
+ cmp r8, #DRAM_DEV_DENSITY_512M
+ beq densCont
+
+ /* This is an error. return */
+ b exit_ddrAutoConfig
+
+densCont:
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_ADDR_CTRL_REG)
+
+ /* Config DDR2 registers (Extended mode, ODTs and pad calibration) */
+ MV_REG_READ_ASM (r8, r5, SDRAM_CONFIG_REG)
+ tst r8, #SDRAM_DTYPE_DDR2
+ beq _extModeODTEnd
+
+
+ /* Set DDR Extended Mode register for working with CS[0] */
+ /* write 'nop' to SDRAM operation */
+ mov r6, #0x5 /* 'NOP' command */
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_OPERATION_REG)
+
+ /* poll SDRAM operation. Make sure its back to normal operation */
+_sdramOpPoll3:
+ ldr r6, [r5]
+ cmp r6, #0 /* '0' = Normal SDRAM Mode */
+ bne _sdramOpPoll3
+
+ /* Now its safe to write new value to SDRAM Extended Mode register */
+ ldr r6, =DDR_SDRAM_EXT_MODE_CS0_DV
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_EXTENDED_MODE_REG)
+
+ /* Make the Dunit write the DRAM its new extended mode */
+ mov r6, #0x4 /* Extended Mode Register Set command */
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_OPERATION_REG)
+
+ /* poll SDRAM operation. Make sure its back to normal operation */
+_sdramOpPoll4:
+ ldr r6, [r5]
+ cmp r6, #0 /* '0' = Normal SDRAM Mode */
+ bne _sdramOpPoll4
+
+ /* ODT configuration is done for single bank CS[0] only */
+ /* Config DDR2 On Die Termination (ODT) registers */
+ ldr r6, =DDR2_ODT_CTRL_LOW_CS0_DV
+ MV_REG_WRITE_ASM (r6, r5, DDR2_SDRAM_ODT_CTRL_LOW_REG)
+
+ ldr r6, =DDR2_ODT_CTRL_HIGH_CS0_DV
+ MV_REG_WRITE_ASM (r6, r5, DDR2_SDRAM_ODT_CTRL_HIGH_REG)
+
+ ldr r6, =DDR2_DUNIT_ODT_CTRL_CS0_DV
+ MV_REG_WRITE_ASM (r6, r5, DDR2_DUNIT_ODT_CONTROL_REG)
+
+
+ /* we will check what device we are running and perform
+ Initialization according to device value */
+
+_extModeODTEnd:
+
+ /* Implement Guideline (GL# MEM-2) P_CAL Automatic Calibration */
+ /* Does Not Work for Address/Control and Data Pads. */
+ /* Relevant for: 88F5181-A1/B0 and 88F5281-A0 */
+
+ /* Read device ID */
+ MV_CTRL_MODEL_GET_ASM(r6, r5);
+ /* Read device revision */
+ MV_CTRL_REV_GET_ASM(r8, r5);
+
+ /* Continue if OrionN */
+ ldr r5, =MV_5180_DEV_ID
+ cmp r6, r5
+ bne 1f
+ b glMem2End
+1:
+
+ /* Continue if Orion1 and device revision B1 */
+ ldr r5, =MV_5181_DEV_ID
+ cmp r6, r5
+ bne 1f
+
+ cmp r8, #MV_5181_B1_REV
+ bge glMem2End
+ b glMem2Start
+1:
+
+ /* Orion NAS */
+ ldr r5, =MV_5182_DEV_ID
+ cmp r6, r5
+ beq glMem2Start
+
+ /* Orion Shark */
+ ldr r5, =MV_8660_DEV_ID
+ cmp r6, r5
+ beq glMem2Start
+
+ b glMem2End
+
+glMem2Start:
+
+ /* DDR SDRAM Address/Control Pads Calibration */
+ MV_REG_READ_ASM (r6, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+
+ /* Set Bit [31] to make the register writable */
+ orr r8, r6, #SDRAM_WR_EN
+
+ MV_REG_WRITE_ASM (r8, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+
+ bic r6, r6, #SDRAM_WR_EN /* Make register read-only */
+ bic r6, r6, #SDRAM_TUNE_EN /* Disable auto calibration */
+ bic r6, r6, #SDRAM_DRVN_MASK /* Clear r5[5:0]<DrvN> */
+ bic r6, r6, #SDRAM_DRVP_MASK /* Clear r5[11:6]<DrvP> */
+
+ /* Get the final N locked value of driving strength [22:17] */
+ mov r5, r6
+ mov r5, r5, LSL #9
+ mov r5, r5, LSR #26 /* r5[5:0]<DrvN> = r6[22:17]<LockN> */
+ orr r5, r5, r5, LSL #6 /* r5[11:6]<DrvP> = r5[5:0]<DrvN> */
+
+ /* Write to both <DrvN> bits [5:0] and <DrvP> bits [11:6] */
+ orr r6, r6, r5
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+
+
+ /* DDR SDRAM Data Pads Calibration */
+ MV_REG_READ_ASM (r6, r5, SDRAM_DATA_PADS_CAL_REG)
+
+ /* Set Bit [31] to make the register writable */
+ orr r8, r6, #SDRAM_WR_EN
+
+ MV_REG_WRITE_ASM (r8, r5, SDRAM_DATA_PADS_CAL_REG)
+
+ bic r6, r6, #SDRAM_WR_EN /* Make register read-only */
+ bic r6, r6, #SDRAM_TUNE_EN /* Disable auto calibration */
+ bic r6, r6, #SDRAM_DRVN_MASK /* Clear r5[5:0]<DrvN> */
+ bic r6, r6, #SDRAM_DRVP_MASK /* Clear r5[11:6]<DrvP> */
+
+ /* Get the final N locked value of driving strength [22:17] */
+ mov r5, r6
+ mov r5, r5, LSL #9
+ mov r5, r5, LSR #26
+ orr r5, r5, r5, LSL #6 /* r5[5:0] = r6[22:17]<LockN> */
+
+ /* Write to both <DrvN> bits [5:0] and <DrvP> bits [11:6] */
+ orr r6, r6, r5
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_DATA_PADS_CAL_REG)
+
+glMem2End:
+ /* Implement Guideline (GL# MEM-3) Drive Strength Value */
+ /* Relevant for: 88F5181-A1/B0/B1 and 88F5281-A0/B0 */
+
+ /* Get SDRAM Config value */
+ MV_REG_READ_ASM (r8, r5, SDRAM_CONFIG_REG)
+
+ /* Get DIMM type */
+ tst r8, #SDRAM_DTYPE_DDR2
+ beq ddr1StrengthVal
+
+ddr2StrengthVal:
+ ldr r4, =DDR2_ADDR_CTRL_PAD_STRENGTH_TYPICAL_DV
+ ldr r8, =DDR2_DATA_PAD_STRENGTH_TYPICAL_DV
+ b setDrvStrength
+ddr1StrengthVal:
+ ldr r4, =DDR1_ADDR_CTRL_PAD_STRENGTH_TYPICAL_DV
+ ldr r8, =DDR1_DATA_PAD_STRENGTH_TYPICAL_DV
+
+setDrvStrength:
+ /* DDR SDRAM Address/Control Pads Calibration */
+ MV_REG_READ_ASM (r6, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+
+ orr r6, r6, #SDRAM_WR_EN /* Make register writeable */
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+ HTOLL(r6,r5)
+
+ bic r6, r6, #SDRAM_WR_EN /* Make register read-only */
+ bic r6, r6, #SDRAM_PRE_DRIVER_STRENGTH_MASK
+ orr r6, r4, r6 /* Set default value for DDR */
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_ADDR_CTRL_PADS_CAL_REG)
+
+
+ /* DDR SDRAM Data Pads Calibration */
+ MV_REG_READ_ASM (r6, r5, SDRAM_DATA_PADS_CAL_REG)
+
+ orr r6, r6, #SDRAM_WR_EN /* Make register writeable */
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_DATA_PADS_CAL_REG)
+ HTOLL(r6,r5)
+
+ bic r6, r6, #SDRAM_WR_EN /* Make register read-only */
+ bic r6, r6, #SDRAM_PRE_DRIVER_STRENGTH_MASK
+ orr r6, r8, r6 /* Set default value for DDR */
+
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_DATA_PADS_CAL_REG)
+
+
+ /* Implement Guideline (GL# MEM-4) DQS Reference Delay Tuning */
+ /* Relevant for: 88F5181-A1/B0/B1 and 88F5281-A0/B0 */
+ /* Get the "sample on reset" register for the DDR frequancy */
+
+#if defined(MV_RUN_FROM_FLASH)
+ /* Calc the absolute address of the _cpuARMDDRCLK[] in the boot flash */
+ ldr r7, = _cpuARMDDRCLK
+ ldr r4, =_start
+ ldr r4, [r4]
+ sub r7, r7, r4
+ ldr r4, = Lrom_start_of_data
+ ldr r4, [r4]
+ add r7, r4, r7
+#else
+ /* Calc the absolute address of the _cpuARMDDRCLK[] in the boot flash */
+ ldr r7, = _cpuARMDDRCLK
+ ldr r4, =_start
+ sub r7, r7, r4
+ add r7, r7, #CFG_MONITOR_BASE
+#endif
+ /* Get the "sample on reset" register for the DDR frequancy */
+ MV_REG_READ_ASM (r4, r5, MPP_SAMPLE_AT_RESET)
+ ldr r5, =MSAR_ARMDDRCLCK_MASK
+ and r5, r4, r5
+#if 0 /* YOTAM TO BE FIX */
+ mov r5, r5, LSR #MSAR_ARMDDRCLCK_OFFS
+#endif
+
+ /* Read device ID */
+ MV_CTRL_MODEL_GET_ASM(r6, r8);
+
+ /* Continue if TC90 */
+ ldr r8, =MV_1281_DEV_ID
+ cmp r6, r6
+ beq armClkMsb
+
+ /* Continue if Orion2 */
+ ldr r8, =MV_5281_DEV_ID
+ cmp r6, r8
+#if 0 /* YOTAM TO BE FIX */
+ bne 1f
+#endif
+
+armClkMsb:
+#if 0 /* YOTAM TO BE FIX */
+ tst r4, #MSAR_ARMDDRCLCK_H_MASK
+ beq 1f
+ orr r5, r5, #BIT4
+1:
+ ldr r4, =MV_CPU_ARM_CLK_ELM_SIZE
+ mul r5, r4, r5
+ add r7, r7, r5
+ add r7, r7, #MV_CPU_ARM_CLK_DDR_OFF
+ ldr r5, [r7]
+#endif
+
+ /* Get SDRAM Config value */
+ MV_REG_READ_ASM (r8, r4, SDRAM_CONFIG_REG)
+
+ /* Get DIMM type */
+ tst r8, #SDRAM_DTYPE_DDR2
+ beq ddr1FtdllVal
+
+ddr2FtdllVal:
+ ldr r4, =FTDLL_DDR2_250MHZ
+ ldr r7, =_250MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =FTDLL_DDR2_200MHZ
+ ldr r7, =_200MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =FTDLL_DDR2_166MHZ
+ ldr r7, =_166MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =FTDLL_DDR2_133MHZ
+ b setFtdllReg
+
+ddr1FtdllVal:
+ ldr r4, =FTDLL_DDR1_200MHZ
+ ldr r7, =_200MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =FTDLL_DDR1_166MHZ
+ ldr r7, =_166MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =FTDLL_DDR1_133MHZ
+ ldr r7, =_133MHz
+ cmp r5, r7
+ beq setFtdllReg
+ ldr r4, =0
+
+setFtdllReg:
+
+#if !defined(MV_88W8660) && !defined(MV_88F6183) && !defined(MV_88F6183L)
+ MV_REG_READ_ASM (r8, r5, SDRAM_FTDLL_CONFIG_REG)
+ orr r8, r8, r4
+ MV_REG_WRITE_ASM (r8, r5, SDRAM_FTDLL_CONFIG_REG)
+ bic r8, r8, #1
+ MV_REG_WRITE_ASM (r8, r5, SDRAM_FTDLL_CONFIG_REG)
+#endif /* !defined(MV_88W8660) && !defined(MV_88F6183) && !defined(MV_88F6183L)*/
+
+
+setTimingReg:
+ /* Set default Timing parameters */
+ MV_REG_READ_ASM (r8, r5, SDRAM_CONFIG_REG)
+ tst r8, #SDRAM_DTYPE_DDR2
+ bne ddr2TimeParam
+
+ddr1TimeParam:
+ ldr r6, =DDR1_TIMING_LOW_DV
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_TIMING_CTRL_LOW_REG)
+ ldr r6, =DDR1_TIMING_HIGH_DV
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_TIMING_CTRL_HIGH_REG)
+ b timeParamDone
+
+ddr2TimeParam:
+ ldr r6, =DDR2_TIMING_LOW_DV
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_TIMING_CTRL_LOW_REG)
+ ldr r6, =DDR2_TIMING_HIGH_DV
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_TIMING_CTRL_HIGH_REG)
+
+timeParamDone:
+ /* Open CS[0] window to requested size and enable it. Disable other */
+ /* windows */
+ ldr r6, =SCBAR_BASE_MASK
+ sub r3, r3, #1
+ and r3, r3, r6
+ orr r3, r3, #1 /* Enable bank */
+ MV_REG_WRITE_ASM (r3, r5, SDRAM_SIZE_REG(0))
+ ldr r6, =0
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_SIZE_REG(1))
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_SIZE_REG(2))
+ MV_REG_WRITE_ASM (r6, r5, SDRAM_SIZE_REG(3))
+
+exit_ddrAutoConfig:
+ mov PC, r11 /* r11 is saved link register */
+
+
+/***************************************************************************************/
+/* r4 holds I2C EEPROM address
+ * r7 holds I2C EEPROM offset parameter for i2cRead and its --> returned value
+ * r8 holds SDRAM various configuration registers value.
+ * r13 holds Link register
+ */
+/**************************/
+_getDensity:
+ mov r13, LR /* Save link register */
+
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #NUM_OF_ROWS_OFFSET /* offset 3 */
+ bl _i2cRead
+ mov r8, r7 /* r8 save number of rows */
+
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #NUM_OF_COLS_OFFSET /* offset 4 */
+ bl _i2cRead
+ add r8, r8, r7 /* r8 = number of rows + number of col */
+
+ mov r7, #0x1
+ mov r8, r7, LSL r8 /* r8 = (1 << r8) */
+
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #SDRAM_WIDTH_OFFSET /* offset 13 */
+ bl _i2cRead
+ mul r8, r7, r8
+
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #NUM_OF_BANKS_OFFSET /* offset 17 */
+ bl _i2cRead
+ mul r7, r8, r7
+
+ mov PC, r13
+
+/**************************/
+_get_width:
+ mov r13, LR /* Save link register */
+
+ /* Get SDRAM width (SPD offset 13) */
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #SDRAM_WIDTH_OFFSET
+ bl _i2cRead /* result in r7 */
+
+ mov PC, r13
+
+/**************************/
+_get_CAL:
+ mov r13, LR /* Save link register */
+
+ /* Set maximum CL supported by DIMM */
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #SUPPORTED_CL_OFFSET /* offset 18 */
+ bl _i2cRead
+
+ mov PC, r13
+
+/**************************/
+/* R8 - sdram configuration register.
+ * Return value in flag if no-registered then Z-flag is set
+ */
+_is_Registered:
+ mov r13, LR /* Save link register */
+
+ /* Get registered/non registered info from DIMM */
+ tst r8, #SDRAM_DTYPE_DDR2
+ bne regDdr2
+
+regDdr1:
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #SDRAM_MODULES_ATTR_OFFSET
+ bl _i2cRead /* result in r7 */
+ tst r7, #0x2
+ b exit
+regDdr2:
+ mov r4, #MV_BOARD_DIMM0_I2C_ADDR /* reading from DIMM0 */
+ mov r7, #DIMM_TYPE_INFO_OFFSET
+ bl _i2cRead /* result in r7 */
+ tst r7, #0x11 /* DIMM type = regular RDIMM (0x01) */
+ /* or Mini-RDIMM (0x10) */
+exit:
+ mov PC, r13
+
+
+#endif
projects / 15.05 / openwrt.git / blobdiff