mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 00:01:10 +02:00
f40a767b0d
* adds stage1 lzma * new boards * fixes settings for PSC ram * lost of cleanups git-svn-id: svn://svn.openwrt.org/openwrt/trunk@25694 3c298f89-4303-0410-b956-a3cf2f4a3e73
280 lines
7.7 KiB
ArmAsm
280 lines
7.7 KiB
ArmAsm
/*
|
|
* Memory sub-system initialization code for Danube board.
|
|
* Andre Messerschmidt
|
|
* Copyright (c) 2005 Infineon Technologies AG
|
|
*
|
|
* Based on Inca-IP code
|
|
* Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
|
|
*
|
|
* 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
|
|
*/
|
|
/* History:
|
|
peng liu May 25, 2006, for PLL setting after reset, 05252006
|
|
*/
|
|
#include <config.h>
|
|
#include <version.h>
|
|
#include <asm/regdef.h>
|
|
|
|
#if defined(CONFIG_USE_DDR_PSC_32)
|
|
#include "ddr_settings_psc_32.h"
|
|
#define DDR166
|
|
#elif defined(CONFIG_USE_DDR_PSC_64)
|
|
#include "ddr_settings_psc_64.h"
|
|
#define DDR166
|
|
#else
|
|
#error "missing definition for RAM"
|
|
#endif
|
|
|
|
#define EBU_MODUL_BASE 0xBE105300
|
|
#define EBU_CLC(value) 0x0000(value)
|
|
#define EBU_CON(value) 0x0010(value)
|
|
#define EBU_ADDSEL0(value) 0x0020(value)
|
|
#define EBU_ADDSEL1(value) 0x0024(value)
|
|
#define EBU_ADDSEL2(value) 0x0028(value)
|
|
#define EBU_ADDSEL3(value) 0x002C(value)
|
|
#define EBU_BUSCON0(value) 0x0060(value)
|
|
#define EBU_BUSCON1(value) 0x0064(value)
|
|
#define EBU_BUSCON2(value) 0x0068(value)
|
|
#define EBU_BUSCON3(value) 0x006C(value)
|
|
|
|
#define MC_MODUL_BASE 0xBF800000
|
|
#define MC_ERRCAUSE(value) 0x0010(value)
|
|
#define MC_ERRADDR(value) 0x0020(value)
|
|
#define MC_CON(value) 0x0060(value)
|
|
|
|
#define MC_SRAM_ENABLE 0x00000004
|
|
#define MC_SDRAM_ENABLE 0x00000002
|
|
#define MC_DDRRAM_ENABLE 0x00000001
|
|
|
|
#define MC_SDR_MODUL_BASE 0xBF800200
|
|
#define MC_IOGP(value) 0x0000(value)
|
|
#define MC_CTRLENA(value) 0x0010(value)
|
|
#define MC_MRSCODE(value) 0x0020(value)
|
|
#define MC_CFGDW(value) 0x0030(value)
|
|
#define MC_CFGPB0(value) 0x0040(value)
|
|
#define MC_LATENCY(value) 0x0080(value)
|
|
#define MC_TREFRESH(value) 0x0090(value)
|
|
#define MC_SELFRFSH(value) 0x00A0(value)
|
|
|
|
#define MC_DDR_MODUL_BASE 0xBF801000
|
|
#define MC_DC00(value) 0x0000(value)
|
|
#define MC_DC01(value) 0x0010(value)
|
|
#define MC_DC02(value) 0x0020(value)
|
|
#define MC_DC03(value) 0x0030(value)
|
|
#define MC_DC04(value) 0x0040(value)
|
|
#define MC_DC05(value) 0x0050(value)
|
|
#define MC_DC06(value) 0x0060(value)
|
|
#define MC_DC07(value) 0x0070(value)
|
|
#define MC_DC08(value) 0x0080(value)
|
|
#define MC_DC09(value) 0x0090(value)
|
|
#define MC_DC10(value) 0x00A0(value)
|
|
#define MC_DC11(value) 0x00B0(value)
|
|
#define MC_DC12(value) 0x00C0(value)
|
|
#define MC_DC13(value) 0x00D0(value)
|
|
#define MC_DC14(value) 0x00E0(value)
|
|
#define MC_DC15(value) 0x00F0(value)
|
|
#define MC_DC16(value) 0x0100(value)
|
|
#define MC_DC17(value) 0x0110(value)
|
|
#define MC_DC18(value) 0x0120(value)
|
|
#define MC_DC19(value) 0x0130(value)
|
|
#define MC_DC20(value) 0x0140(value)
|
|
#define MC_DC21(value) 0x0150(value)
|
|
#define MC_DC22(value) 0x0160(value)
|
|
#define MC_DC23(value) 0x0170(value)
|
|
#define MC_DC24(value) 0x0180(value)
|
|
#define MC_DC25(value) 0x0190(value)
|
|
#define MC_DC26(value) 0x01A0(value)
|
|
#define MC_DC27(value) 0x01B0(value)
|
|
#define MC_DC28(value) 0x01C0(value)
|
|
#define MC_DC29(value) 0x01D0(value)
|
|
#define MC_DC30(value) 0x01E0(value)
|
|
#define MC_DC31(value) 0x01F0(value)
|
|
#define MC_DC32(value) 0x0200(value)
|
|
#define MC_DC33(value) 0x0210(value)
|
|
#define MC_DC34(value) 0x0220(value)
|
|
#define MC_DC35(value) 0x0230(value)
|
|
#define MC_DC36(value) 0x0240(value)
|
|
#define MC_DC37(value) 0x0250(value)
|
|
#define MC_DC38(value) 0x0260(value)
|
|
#define MC_DC39(value) 0x0270(value)
|
|
#define MC_DC40(value) 0x0280(value)
|
|
#define MC_DC41(value) 0x0290(value)
|
|
#define MC_DC42(value) 0x02A0(value)
|
|
#define MC_DC43(value) 0x02B0(value)
|
|
#define MC_DC44(value) 0x02C0(value)
|
|
#define MC_DC45(value) 0x02D0(value)
|
|
#define MC_DC46(value) 0x02E0(value)
|
|
|
|
#define RCU_OFFSET 0xBF203000
|
|
#define RCU_RST_REQ (RCU_OFFSET + 0x0010)
|
|
#define RCU_STS (RCU_OFFSET + 0x0014)
|
|
|
|
#define CGU_OFFSET 0xBF103000
|
|
#define PLL0_CFG (CGU_OFFSET + 0x0004)
|
|
#define PLL1_CFG (CGU_OFFSET + 0x0008)
|
|
#define PLL2_CFG (CGU_OFFSET + 0x000C)
|
|
#define CGU_SYS (CGU_OFFSET + 0x0010)
|
|
#define CGU_UPDATE (CGU_OFFSET + 0x0014)
|
|
#define IF_CLK (CGU_OFFSET + 0x0018)
|
|
#define CGU_SMD (CGU_OFFSET + 0x0020)
|
|
#define CGU_CT1SR (CGU_OFFSET + 0x0028)
|
|
#define CGU_CT2SR (CGU_OFFSET + 0x002C)
|
|
#define CGU_PCMCR (CGU_OFFSET + 0x0030)
|
|
#define PCI_CR_PCI (CGU_OFFSET + 0x0034)
|
|
#define CGU_OSC_CTRL (CGU_OFFSET + 0x001C)
|
|
#define CGU_MIPS_PWR_DWN (CGU_OFFSET + 0x0038)
|
|
#define CLK_MEASURE (CGU_OFFSET + 0x003C)
|
|
|
|
//05252006
|
|
#define pll0_35MHz_CONFIG 0x9D861059
|
|
#define pll1_35MHz_CONFIG 0x1A260CD9
|
|
#define pll2_35MHz_CONFIG 0x8000f1e5
|
|
#define pll0_36MHz_CONFIG 0x1000125D
|
|
#define pll1_36MHz_CONFIG 0x1B1E0C99
|
|
#define pll2_36MHz_CONFIG 0x8002f2a1
|
|
//05252006
|
|
|
|
//06063001-joelin disable the PCI CFRAME mask -start
|
|
/*CFRAME is an I/O signal, in the chip, the output CFRAME is selected via GPIO altsel pins, so if you select MII1 RXD1, the CFRAME will not come out.
|
|
But the CFRAME input still take the signal from the pad and not disabled when altsel choose other function. So when MII1_RXD1 is low from other device, the EBU interface will be disabled.
|
|
|
|
The chip function in such a way that disable the CFRAME mask mean EBU not longer check CFRAME to be the device using the bus.
|
|
The side effect is the entire PCI block will see CFRAME low all the time meaning PCI cannot use the bus at all so no more PCI function.
|
|
*/
|
|
#define PCI_CR_PR_OFFSET 0xBE105400
|
|
#define PCI_CR_PCI_MOD_REG (PCI_CR_PR_OFFSET + 0x0030)
|
|
#define PCI_CONFIG_SPACE 0xB7000000
|
|
#define CS_CFM (PCI_CONFIG_SPACE + 0x6C)
|
|
//06063001-joelin disable the PCI CFRAME mask -end
|
|
.set noreorder
|
|
|
|
|
|
/*
|
|
* void ebu_init(void)
|
|
*/
|
|
.globl ebu_init
|
|
.ent ebu_init
|
|
ebu_init:
|
|
|
|
j ra
|
|
nop
|
|
|
|
.end ebu_init
|
|
|
|
|
|
/*
|
|
* void cgu_init(long)
|
|
*
|
|
* a0 has the clock value
|
|
*/
|
|
.globl cgu_init
|
|
.ent cgu_init
|
|
cgu_init:
|
|
li t2, CGU_SYS
|
|
lw t2,0(t2)
|
|
beq t2,a0,freq_up2date
|
|
nop
|
|
|
|
li t2, RCU_STS
|
|
lw t2, 0(t2)
|
|
and t2,0x00020000
|
|
beq t2,0x00020000,boot_36MHZ
|
|
nop
|
|
//05252006
|
|
li t1, PLL0_CFG
|
|
li t2, pll0_35MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, PLL1_CFG
|
|
li t2, pll1_35MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, PLL2_CFG
|
|
li t2, pll2_35MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, CGU_SYS
|
|
sw a0,0(t1)
|
|
li t1, RCU_RST_REQ
|
|
li t2, 0x40000008
|
|
sw t2,0(t1)
|
|
b wait_reset
|
|
nop
|
|
boot_36MHZ:
|
|
li t1, PLL0_CFG
|
|
li t2, pll0_36MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, PLL1_CFG
|
|
li t2, pll1_36MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, PLL2_CFG
|
|
li t2, pll2_36MHz_CONFIG
|
|
sw t2,0(t1)
|
|
li t1, CGU_SYS
|
|
sw a0,0(t1)
|
|
li t1, RCU_RST_REQ
|
|
li t2, 0x40000008
|
|
sw t2,0(t1)
|
|
//05252006
|
|
|
|
wait_reset:
|
|
b wait_reset
|
|
nop
|
|
freq_up2date:
|
|
j ra
|
|
nop
|
|
|
|
.end cgu_init
|
|
|
|
.globl lowlevel_init
|
|
.ent lowlevel_init
|
|
lowlevel_init:
|
|
/* EBU, CGU and SDRAM/DDR-RAM Initialization.
|
|
*/
|
|
move t0, ra
|
|
/* We rely on the fact that non of the following ..._init() functions
|
|
* modify t0
|
|
*/
|
|
|
|
bal ebu_init
|
|
nop
|
|
|
|
//06063001-joelin disable the PCI CFRAME mask-start
|
|
#ifdef DISABLE_CFRAME
|
|
li t1, PCI_CR_PCI //mw bf103034 80000000
|
|
li t2, 0x80000000
|
|
sw t2,0(t1)
|
|
|
|
li t1, PCI_CR_PCI_MOD_REG //mw be105430 103
|
|
li t2, 0x103
|
|
sw t2,0(t1)
|
|
|
|
li t1, CS_CFM //mw b700006c 0
|
|
li t2, 0x00
|
|
sw t2, 0(t1)
|
|
|
|
li t1, PCI_CR_PCI_MOD_REG //mw be105430 103
|
|
li t2, 0x1000103
|
|
sw t2, 0(t1)
|
|
#endif
|
|
//06063001-joelin disable the PCI CFRAME mask-end
|
|
|
|
move ra, t0
|
|
j ra
|
|
nop
|
|
|
|
.end lowlevel_init
|