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|
/*
* Memory setup for ORIGEN board based on EXYNOS4210
*
* Copyright (C) 2011 Samsung Electronics
*
* 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
*/
#include <config.h>
#include "origen_setup.h"
#define SET_MIU
.globl mem_ctrl_asm_init
mem_ctrl_asm_init:
/*
* Async bridge configuration at CPU_core:
* 1: half_sync
* 0: full_sync
*/
ldr r0, =ASYNC_CONFIG
mov r1, #1
str r1, [r0]
#ifdef SET_MIU
ldr r0, =EXYNOS4_MIU_BASE
/* Interleave: 2Bit, Interleave_bit1: 0x21, Interleave_bit2: 0x7 */
ldr r1, =0x20001507
str r1, [r0, #APB_SFR_INTERLEAVE_CONF_OFFSET]
/* Update MIU Configuration */
ldr r1, =0x00000001
str r1, [r0, #APB_SFR_ARBRITATION_CONF_OFFSET]
#endif
/* DREX0 */
ldr r0, =EXYNOS4_DMC0_BASE
/*
* DLL Parameter Setting:
* Termination: Enable R/W
* Phase Delay for DQS Cleaning: 180' Shift
*/
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/*
* ZQ Calibration
* Termination: Disable
* Auto Calibration Start: Enable
*/
ldr r1, =0xE3855703
str r1, [r0, #DMC_PHYZQCONTROL]
/* Wait ?us*/
mov r2, #0x100000
1: subs r2, r2, #1
bne 1b
/*
* Update DLL Information:
* Force DLL Resyncronization
*/
ldr r1, =0xe000008e
str r1, [r0, #DMC_PHYCONTROL1]
/* Reset Force DLL Resyncronization */
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* Enable Differential DQS, DLL Off*/
ldr r1, =0x71101008
str r1, [r0, #DMC_PHYCONTROL0]
/* Activate PHY DLL: DLL On */
ldr r1, =0x7110100A
str r1, [r0, #DMC_PHYCONTROL0]
/* Set DLL Parameters */
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* DLL Start */
ldr r1, =0x7110100B
str r1, [r0, #DMC_PHYCONTROL0]
ldr r1, =0x00000000
str r1, [r0, #DMC_PHYCONTROL2]
/* Set Clock Ratio of Bus clock to Memory Clock */
ldr r1, =0x0FFF301a
str r1, [r0, #DMC_CONCONTROL]
/*
* Memor Burst length: 8
* Number of chips: 2
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 1 Cycle
*/
ldr r1, =0x00312640
str r1, [r0, #DMC_MEMCONTROL]
/*
* Memory Configuration Chip 0
* Address Mapping: Interleaved
* Number of Column address Bits: 10 bits
* Number of Rows Address Bits: 14
* Number of Banks: 8
*/
ldr r1, =0x20e01323
str r1, [r0, #DMC_MEMCONFIG0]
/*
* Memory Configuration Chip 1
* Address Mapping: Interleaved
* Number of Column address Bits: 10 bits
* Number of Rows Address Bits: 14
* Number of Banks: 8
*/
ldr r1, =0x40e01323
str r1, [r0, #DMC_MEMCONFIG1]
/* Config Precharge Policy */
ldr r1, =0xff000000
str r1, [r0, #DMC_PRECHCONFIG]
/*
* TimingAref, TimingRow, TimingData, TimingPower Setting:
* Values as per Memory AC Parameters
*/
ldr r1, =0x000000BB
str r1, [r0, #DMC_TIMINGAREF]
ldr r1, =0x4046654f
str r1, [r0, #DMC_TIMINGROW]
ldr r1, =0x46400506
str r1, [r0, #DMC_TIMINGDATA]
ldr r1, =0x52000A3C
str r1, [r0, #DMC_TIMINGPOWER]
/* Chip0: NOP Command: Assert and Hold CKE to high level */
ldr r1, =0x07000000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
2: subs r2, r2, #1
bne 2b
/* Chip0: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
ldr r1, =0x00020000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00030000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00010002
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00000328
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
3: subs r2, r2, #1
bne 3b
/* Chip0: ZQINIT */
ldr r1, =0x0a000000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
4: subs r2, r2, #1
bne 4b
/* Chip1: NOP Command: Assert and Hold CKE to high level */
ldr r1, =0x07100000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
5: subs r2, r2, #1
bne 5b
/* Chip1: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
ldr r1, =0x00120000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00130000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00110002
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00100328
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
6: subs r2, r2, #1
bne 6b
/* Chip1: ZQINIT */
ldr r1, =0x0a100000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
7: subs r2, r2, #1
bne 7b
ldr r1, =0xe000008e
str r1, [r0, #DMC_PHYCONTROL1]
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* Wait ?us*/
mov r2, #0x100000
8: subs r2, r2, #1
bne 8b
/* DREX1 */
ldr r0, =EXYNOS4_DMC1_BASE @0x10410000
/*
* DLL Parameter Setting:
* Termination: Enable R/W
* Phase Delay for DQS Cleaning: 180' Shift
*/
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/*
* ZQ Calibration:
* Termination: Disable
* Auto Calibration Start: Enable
*/
ldr r1, =0xE3855703
str r1, [r0, #DMC_PHYZQCONTROL]
/* Wait ?us*/
mov r2, #0x100000
1: subs r2, r2, #1
bne 1b
/*
* Update DLL Information:
* Force DLL Resyncronization
*/
ldr r1, =0xe000008e
str r1, [r0, #DMC_PHYCONTROL1]
/* Reset Force DLL Resyncronization */
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* Enable Differential DQS, DLL Off*/
ldr r1, =0x71101008
str r1, [r0, #DMC_PHYCONTROL0]
/* Activate PHY DLL: DLL On */
ldr r1, =0x7110100A
str r1, [r0, #DMC_PHYCONTROL0]
/* Set DLL Parameters */
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* DLL Start */
ldr r1, =0x7110100B
str r1, [r0, #DMC_PHYCONTROL0]
ldr r1, =0x00000000
str r1, [r0, #DMC_PHYCONTROL2]
/* Set Clock Ratio of Bus clock to Memory Clock */
ldr r1, =0x0FFF301a
str r1, [r0, #DMC_CONCONTROL]
/*
* Memor Burst length: 8
* Number of chips: 2
* Memory Bus width: 32 bit
* Memory Type: DDR3
* Additional Latancy for PLL: 1 Cycle
*/
ldr r1, =0x00312640
str r1, [r0, #DMC_MEMCONTROL]
/*
* Memory Configuration Chip 0
* Address Mapping: Interleaved
* Number of Column address Bits: 10 bits
* Number of Rows Address Bits: 14
* Number of Banks: 8
*/
ldr r1, =0x20e01323
str r1, [r0, #DMC_MEMCONFIG0]
/*
* Memory Configuration Chip 1
* Address Mapping: Interleaved
* Number of Column address Bits: 10 bits
* Number of Rows Address Bits: 14
* Number of Banks: 8
*/
ldr r1, =0x40e01323
str r1, [r0, #DMC_MEMCONFIG1]
/* Config Precharge Policy */
ldr r1, =0xff000000
str r1, [r0, #DMC_PRECHCONFIG]
/*
* TimingAref, TimingRow, TimingData, TimingPower Setting:
* Values as per Memory AC Parameters
*/
ldr r1, =0x000000BB
str r1, [r0, #DMC_TIMINGAREF]
ldr r1, =0x4046654f
str r1, [r0, #DMC_TIMINGROW]
ldr r1, =0x46400506
str r1, [r0, #DMC_TIMINGDATA]
ldr r1, =0x52000A3C
str r1, [r0, #DMC_TIMINGPOWER]
/* Chip0: NOP Command: Assert and Hold CKE to high level */
ldr r1, =0x07000000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
2: subs r2, r2, #1
bne 2b
/* Chip0: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
ldr r1, =0x00020000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00030000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00010002
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00000328
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
3: subs r2, r2, #1
bne 3b
/* Chip 0: ZQINIT */
ldr r1, =0x0a000000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
4: subs r2, r2, #1
bne 4b
/* Chip1: NOP Command: Assert and Hold CKE to high level */
ldr r1, =0x07100000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
5: subs r2, r2, #1
bne 5b
/* Chip1: EMRS2, EMRS3, EMRS, MRS Commands Using Direct Command */
ldr r1, =0x00120000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00130000
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00110002
str r1, [r0, #DMC_DIRECTCMD]
ldr r1, =0x00100328
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
6: subs r2, r2, #1
bne 6b
/* Chip1: ZQINIT */
ldr r1, =0x0a100000
str r1, [r0, #DMC_DIRECTCMD]
/* Wait ?us*/
mov r2, #0x100000
7: subs r2, r2, #1
bne 7b
ldr r1, =0xe000008e
str r1, [r0, #DMC_PHYCONTROL1]
ldr r1, =0xe0000086
str r1, [r0, #DMC_PHYCONTROL1]
/* Wait ?us*/
mov r2, #0x100000
8: subs r2, r2, #1
bne 8b
/* turn on DREX0, DREX1 */
ldr r0, =EXYNOS4_DMC0_BASE
ldr r1, =0x0FFF303a
str r1, [r0, #DMC_CONCONTROL]
ldr r0, =EXYNOS4_DMC1_BASE
ldr r1, =0x0FFF303a
str r1, [r0, #DMC_CONCONTROL]
mov pc, lr
|
