upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
445 lines
9.9 KiB
445 lines
9.9 KiB
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2012 Renesas Solutions Corp.
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/macro.h>
|
|
|
|
.macro or32, addr, data
|
|
mov.l \addr, r1
|
|
mov.l \data, r0
|
|
mov.l @r1, r2
|
|
or r2, r0
|
|
mov.l r0, @r1
|
|
.endm
|
|
|
|
.macro wait_DBCMD
|
|
mov.l DBWAIT_A, r0
|
|
mov.l @r0, r1
|
|
.endm
|
|
|
|
.global lowlevel_init
|
|
.section .spiboot1.text
|
|
.align 2
|
|
|
|
lowlevel_init:
|
|
/*------- GPIO -------*/
|
|
write16 PDCR_A, PDCR_D ! SPI0
|
|
write16 PGCR_A, PGCR_D ! SPI0, GETHER MDIO gate(PTG1)
|
|
write16 PJCR_A, PJCR_D ! SCIF4
|
|
write16 PTCR_A, PTCR_D ! STATUS
|
|
write16 PSEL1_A, PSEL1_D ! SPI0
|
|
write16 PSEL2_A, PSEL2_D ! SPI0
|
|
write16 PSEL5_A, PSEL5_D ! STATUS
|
|
|
|
bra exit_gpio
|
|
nop
|
|
|
|
.align 2
|
|
|
|
/*------- GPIO -------*/
|
|
PDCR_A: .long 0xffec0006
|
|
PGCR_A: .long 0xffec000c
|
|
PJCR_A: .long 0xffec0012
|
|
PTCR_A: .long 0xffec0026
|
|
PSEL1_A: .long 0xffec0072
|
|
PSEL2_A: .long 0xffec0074
|
|
PSEL5_A: .long 0xffec007a
|
|
|
|
PDCR_D: .long 0x0000
|
|
PGCR_D: .long 0x0004
|
|
PJCR_D: .long 0x0000
|
|
PTCR_D: .long 0x0000
|
|
PSEL1_D: .long 0x0000
|
|
PSEL2_D: .long 0x3000
|
|
PSEL5_D: .long 0x0ffc
|
|
|
|
.align 2
|
|
|
|
exit_gpio:
|
|
mov #0, r14
|
|
mova 2f, r0
|
|
mov.l PC_MASK, r1
|
|
tst r0, r1
|
|
bf 2f
|
|
|
|
bra exit_pmb
|
|
nop
|
|
|
|
.align 2
|
|
|
|
/* If CPU runs on SDRAM (PC=0x5???????) or not. */
|
|
PC_MASK: .long 0x20000000
|
|
|
|
2:
|
|
mov #1, r14
|
|
|
|
mov.l EXPEVT_A, r0
|
|
mov.l @r0, r0
|
|
mov.l EXPEVT_POWER_ON_RESET, r1
|
|
cmp/eq r0, r1
|
|
bt 1f
|
|
|
|
/*
|
|
* If EXPEVT value is manual reset or tlb multipul-hit,
|
|
* initialization of DDR3IF is not necessary.
|
|
*/
|
|
bra exit_ddr
|
|
nop
|
|
|
|
1:
|
|
/*------- Reset -------*/
|
|
write32 MRSTCR0_A, MRSTCR0_D
|
|
write32 MRSTCR1_A, MRSTCR1_D
|
|
|
|
/* For Core Reset */
|
|
mov.l DBACEN_A, r0
|
|
mov.l @r0, r0
|
|
cmp/eq #0, r0
|
|
bt 3f
|
|
|
|
/*
|
|
* If DBACEN == 1(DBSC was already enabled), we have to avoid the
|
|
* initialization of DDR3-SDRAM.
|
|
*/
|
|
bra exit_ddr
|
|
nop
|
|
|
|
3:
|
|
/*------- DDR3IF -------*/
|
|
/* oscillation stabilization time */
|
|
wait_timer WAIT_OSC_TIME
|
|
|
|
/* step 3 */
|
|
write32 DBCMD_A, DBCMD_RSTL_VAL
|
|
wait_timer WAIT_30US
|
|
|
|
/* step 4 */
|
|
write32 DBCMD_A, DBCMD_PDEN_VAL
|
|
|
|
/* step 5 */
|
|
write32 DBKIND_A, DBKIND_D
|
|
|
|
/* step 6 */
|
|
write32 DBCONF_A, DBCONF_D
|
|
write32 DBTR0_A, DBTR0_D
|
|
write32 DBTR1_A, DBTR1_D
|
|
write32 DBTR2_A, DBTR2_D
|
|
write32 DBTR3_A, DBTR3_D
|
|
write32 DBTR4_A, DBTR4_D
|
|
write32 DBTR5_A, DBTR5_D
|
|
write32 DBTR6_A, DBTR6_D
|
|
write32 DBTR7_A, DBTR7_D
|
|
write32 DBTR8_A, DBTR8_D
|
|
write32 DBTR9_A, DBTR9_D
|
|
write32 DBTR10_A, DBTR10_D
|
|
write32 DBTR11_A, DBTR11_D
|
|
write32 DBTR12_A, DBTR12_D
|
|
write32 DBTR13_A, DBTR13_D
|
|
write32 DBTR14_A, DBTR14_D
|
|
write32 DBTR15_A, DBTR15_D
|
|
write32 DBTR16_A, DBTR16_D
|
|
write32 DBTR17_A, DBTR17_D
|
|
write32 DBTR18_A, DBTR18_D
|
|
write32 DBTR19_A, DBTR19_D
|
|
write32 DBRNK0_A, DBRNK0_D
|
|
|
|
/* step 7 */
|
|
write32 DBPDCNT3_A, DBPDCNT3_D
|
|
|
|
/* step 8 */
|
|
write32 DBPDCNT1_A, DBPDCNT1_D
|
|
write32 DBPDCNT2_A, DBPDCNT2_D
|
|
write32 DBPDLCK_A, DBPDLCK_D
|
|
write32 DBPDRGA_A, DBPDRGA_D
|
|
write32 DBPDRGD_A, DBPDRGD_D
|
|
|
|
/* step 9 */
|
|
wait_timer WAIT_30US
|
|
|
|
/* step 10 */
|
|
write32 DBPDCNT0_A, DBPDCNT0_D
|
|
|
|
/* step 11 */
|
|
wait_timer WAIT_30US
|
|
wait_timer WAIT_30US
|
|
|
|
/* step 12 */
|
|
write32 DBCMD_A, DBCMD_WAIT_VAL
|
|
wait_DBCMD
|
|
|
|
/* step 13 */
|
|
write32 DBCMD_A, DBCMD_RSTH_VAL
|
|
wait_DBCMD
|
|
|
|
/* step 14 */
|
|
write32 DBCMD_A, DBCMD_WAIT_VAL
|
|
write32 DBCMD_A, DBCMD_WAIT_VAL
|
|
write32 DBCMD_A, DBCMD_WAIT_VAL
|
|
write32 DBCMD_A, DBCMD_WAIT_VAL
|
|
|
|
/* step 15 */
|
|
write32 DBCMD_A, DBCMD_PDXT_VAL
|
|
|
|
/* step 16 */
|
|
write32 DBCMD_A, DBCMD_MRS2_VAL
|
|
|
|
/* step 17 */
|
|
write32 DBCMD_A, DBCMD_MRS3_VAL
|
|
|
|
/* step 18 */
|
|
write32 DBCMD_A, DBCMD_MRS1_VAL
|
|
|
|
/* step 19 */
|
|
write32 DBCMD_A, DBCMD_MRS0_VAL
|
|
|
|
/* step 20 */
|
|
write32 DBCMD_A, DBCMD_ZQCL_VAL
|
|
|
|
write32 DBCMD_A, DBCMD_REF_VAL
|
|
write32 DBCMD_A, DBCMD_REF_VAL
|
|
wait_DBCMD
|
|
|
|
/* step 21 */
|
|
write32 DBADJ0_A, DBADJ0_D
|
|
write32 DBADJ1_A, DBADJ1_D
|
|
write32 DBADJ2_A, DBADJ2_D
|
|
|
|
/* step 22 */
|
|
write32 DBRFCNF0_A, DBRFCNF0_D
|
|
write32 DBRFCNF1_A, DBRFCNF1_D
|
|
write32 DBRFCNF2_A, DBRFCNF2_D
|
|
|
|
/* step 23 */
|
|
write32 DBCALCNF_A, DBCALCNF_D
|
|
|
|
/* step 24 */
|
|
write32 DBRFEN_A, DBRFEN_D
|
|
write32 DBCMD_A, DBCMD_SRXT_VAL
|
|
|
|
/* step 25 */
|
|
write32 DBACEN_A, DBACEN_D
|
|
|
|
/* step 26 */
|
|
wait_DBCMD
|
|
|
|
bra exit_ddr
|
|
nop
|
|
|
|
.align 2
|
|
|
|
EXPEVT_A: .long 0xff000024
|
|
EXPEVT_POWER_ON_RESET: .long 0x00000000
|
|
|
|
/*------- Reset -------*/
|
|
MRSTCR0_A: .long 0xffd50030
|
|
MRSTCR0_D: .long 0xfe1ffe7f
|
|
MRSTCR1_A: .long 0xffd50034
|
|
MRSTCR1_D: .long 0xfff3ffff
|
|
|
|
/*------- DDR3IF -------*/
|
|
DBCMD_A: .long 0xfe800018
|
|
DBKIND_A: .long 0xfe800020
|
|
DBCONF_A: .long 0xfe800024
|
|
DBTR0_A: .long 0xfe800040
|
|
DBTR1_A: .long 0xfe800044
|
|
DBTR2_A: .long 0xfe800048
|
|
DBTR3_A: .long 0xfe800050
|
|
DBTR4_A: .long 0xfe800054
|
|
DBTR5_A: .long 0xfe800058
|
|
DBTR6_A: .long 0xfe80005c
|
|
DBTR7_A: .long 0xfe800060
|
|
DBTR8_A: .long 0xfe800064
|
|
DBTR9_A: .long 0xfe800068
|
|
DBTR10_A: .long 0xfe80006c
|
|
DBTR11_A: .long 0xfe800070
|
|
DBTR12_A: .long 0xfe800074
|
|
DBTR13_A: .long 0xfe800078
|
|
DBTR14_A: .long 0xfe80007c
|
|
DBTR15_A: .long 0xfe800080
|
|
DBTR16_A: .long 0xfe800084
|
|
DBTR17_A: .long 0xfe800088
|
|
DBTR18_A: .long 0xfe80008c
|
|
DBTR19_A: .long 0xfe800090
|
|
DBRNK0_A: .long 0xfe800100
|
|
DBPDCNT0_A: .long 0xfe800200
|
|
DBPDCNT1_A: .long 0xfe800204
|
|
DBPDCNT2_A: .long 0xfe800208
|
|
DBPDCNT3_A: .long 0xfe80020c
|
|
DBPDLCK_A: .long 0xfe800280
|
|
DBPDRGA_A: .long 0xfe800290
|
|
DBPDRGD_A: .long 0xfe8002a0
|
|
DBADJ0_A: .long 0xfe8000c0
|
|
DBADJ1_A: .long 0xfe8000c4
|
|
DBADJ2_A: .long 0xfe8000c8
|
|
DBRFCNF0_A: .long 0xfe8000e0
|
|
DBRFCNF1_A: .long 0xfe8000e4
|
|
DBRFCNF2_A: .long 0xfe8000e8
|
|
DBCALCNF_A: .long 0xfe8000f4
|
|
DBRFEN_A: .long 0xfe800014
|
|
DBACEN_A: .long 0xfe800010
|
|
DBWAIT_A: .long 0xfe80001c
|
|
|
|
WAIT_OSC_TIME: .long 6000
|
|
WAIT_30US: .long 13333
|
|
|
|
DBCMD_RSTL_VAL: .long 0x20000000
|
|
DBCMD_PDEN_VAL: .long 0x1000d73c
|
|
DBCMD_WAIT_VAL: .long 0x0000d73c
|
|
DBCMD_RSTH_VAL: .long 0x2100d73c
|
|
DBCMD_PDXT_VAL: .long 0x110000c8
|
|
DBCMD_MRS0_VAL: .long 0x28000930
|
|
DBCMD_MRS1_VAL: .long 0x29000004
|
|
DBCMD_MRS2_VAL: .long 0x2a000008
|
|
DBCMD_MRS3_VAL: .long 0x2b000000
|
|
DBCMD_ZQCL_VAL: .long 0x03000200
|
|
DBCMD_REF_VAL: .long 0x0c000000
|
|
DBCMD_SRXT_VAL: .long 0x19000000
|
|
DBKIND_D: .long 0x00000007
|
|
DBCONF_D: .long 0x0f030a01
|
|
DBTR0_D: .long 0x00000007
|
|
DBTR1_D: .long 0x00000006
|
|
DBTR2_D: .long 0x00000000
|
|
DBTR3_D: .long 0x00000007
|
|
DBTR4_D: .long 0x00070007
|
|
DBTR5_D: .long 0x0000001b
|
|
DBTR6_D: .long 0x00000014
|
|
DBTR7_D: .long 0x00000005
|
|
DBTR8_D: .long 0x00000015
|
|
DBTR9_D: .long 0x00000006
|
|
DBTR10_D: .long 0x00000008
|
|
DBTR11_D: .long 0x00000007
|
|
DBTR12_D: .long 0x0000000e
|
|
DBTR13_D: .long 0x00000056
|
|
DBTR14_D: .long 0x00000006
|
|
DBTR15_D: .long 0x00000004
|
|
DBTR16_D: .long 0x00150002
|
|
DBTR17_D: .long 0x000c0017
|
|
DBTR18_D: .long 0x00000200
|
|
DBTR19_D: .long 0x00000040
|
|
DBRNK0_D: .long 0x00000001
|
|
DBPDCNT0_D: .long 0x00000001
|
|
DBPDCNT1_D: .long 0x00000001
|
|
DBPDCNT2_D: .long 0x00000000
|
|
DBPDCNT3_D: .long 0x00004010
|
|
DBPDLCK_D: .long 0x0000a55a
|
|
DBPDRGA_D: .long 0x00000028
|
|
DBPDRGD_D: .long 0x00017100
|
|
|
|
DBADJ0_D: .long 0x00000000
|
|
DBADJ1_D: .long 0x00000000
|
|
DBADJ2_D: .long 0x18061806
|
|
DBRFCNF0_D: .long 0x000001ff
|
|
DBRFCNF1_D: .long 0x08001000
|
|
DBRFCNF2_D: .long 0x00000000
|
|
DBCALCNF_D: .long 0x0000ffff
|
|
DBRFEN_D: .long 0x00000001
|
|
DBACEN_D: .long 0x00000001
|
|
|
|
.align 2
|
|
exit_ddr:
|
|
#if defined(CONFIG_SH_32BIT)
|
|
/*------- set PMB -------*/
|
|
write32 PASCR_A, PASCR_29BIT_D
|
|
write32 MMUCR_A, MMUCR_D
|
|
|
|
/*****************************************************************
|
|
* ent virt phys v sz c wt
|
|
* 0 0xa0000000 0x00000000 1 128M 0 1
|
|
* 1 0xa8000000 0x48000000 1 128M 0 1
|
|
* 5 0x88000000 0x48000000 1 128M 1 1
|
|
*/
|
|
write32 PMB_ADDR_SPIBOOT_A, PMB_ADDR_SPIBOOT_D
|
|
write32 PMB_DATA_SPIBOOT_A, PMB_DATA_SPIBOOT_D
|
|
write32 PMB_ADDR_DDR_C1_A, PMB_ADDR_DDR_C1_D
|
|
write32 PMB_DATA_DDR_C1_A, PMB_DATA_DDR_C1_D
|
|
write32 PMB_ADDR_DDR_N1_A, PMB_ADDR_DDR_N1_D
|
|
write32 PMB_DATA_DDR_N1_A, PMB_DATA_DDR_N1_D
|
|
|
|
write32 PMB_ADDR_ENTRY2, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY3, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY4, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY6, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY7, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY8, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY9, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY10, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY11, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY12, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY13, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY14, PMB_ADDR_NOT_USE_D
|
|
write32 PMB_ADDR_ENTRY15, PMB_ADDR_NOT_USE_D
|
|
|
|
write32 PASCR_A, PASCR_INIT
|
|
mov.l DUMMY_ADDR, r0
|
|
icbi @r0
|
|
#endif /* if defined(CONFIG_SH_32BIT) */
|
|
|
|
exit_pmb:
|
|
/* CPU is running on ILRAM? */
|
|
mov r14, r0
|
|
tst #1, r0
|
|
bt 1f
|
|
|
|
mov.l _stack_ilram, r15
|
|
mov.l _spiboot_main, r0
|
|
100: bsrf r0
|
|
nop
|
|
|
|
.align 2
|
|
_spiboot_main: .long (spiboot_main - (100b + 4))
|
|
_stack_ilram: .long 0xe5204000
|
|
|
|
1:
|
|
write32 CCR_A, CCR_D
|
|
|
|
rts
|
|
nop
|
|
|
|
.align 2
|
|
|
|
#if defined(CONFIG_SH_32BIT)
|
|
/*------- set PMB -------*/
|
|
PMB_ADDR_SPIBOOT_A: .long PMB_ADDR_BASE(0)
|
|
PMB_ADDR_DDR_N1_A: .long PMB_ADDR_BASE(1)
|
|
PMB_ADDR_DDR_C1_A: .long PMB_ADDR_BASE(5)
|
|
PMB_ADDR_ENTRY2: .long PMB_ADDR_BASE(2)
|
|
PMB_ADDR_ENTRY3: .long PMB_ADDR_BASE(3)
|
|
PMB_ADDR_ENTRY4: .long PMB_ADDR_BASE(4)
|
|
PMB_ADDR_ENTRY6: .long PMB_ADDR_BASE(6)
|
|
PMB_ADDR_ENTRY7: .long PMB_ADDR_BASE(7)
|
|
PMB_ADDR_ENTRY8: .long PMB_ADDR_BASE(8)
|
|
PMB_ADDR_ENTRY9: .long PMB_ADDR_BASE(9)
|
|
PMB_ADDR_ENTRY10: .long PMB_ADDR_BASE(10)
|
|
PMB_ADDR_ENTRY11: .long PMB_ADDR_BASE(11)
|
|
PMB_ADDR_ENTRY12: .long PMB_ADDR_BASE(12)
|
|
PMB_ADDR_ENTRY13: .long PMB_ADDR_BASE(13)
|
|
PMB_ADDR_ENTRY14: .long PMB_ADDR_BASE(14)
|
|
PMB_ADDR_ENTRY15: .long PMB_ADDR_BASE(15)
|
|
|
|
PMB_ADDR_SPIBOOT_D: .long mk_pmb_addr_val(0xa0)
|
|
PMB_ADDR_DDR_C1_D: .long mk_pmb_addr_val(0x88)
|
|
PMB_ADDR_DDR_N1_D: .long mk_pmb_addr_val(0xa8)
|
|
PMB_ADDR_NOT_USE_D: .long 0x00000000
|
|
|
|
PMB_DATA_SPIBOOT_A: .long PMB_DATA_BASE(0)
|
|
PMB_DATA_DDR_N1_A: .long PMB_DATA_BASE(1)
|
|
PMB_DATA_DDR_C1_A: .long PMB_DATA_BASE(5)
|
|
|
|
/* ppn ub v s1 s0 c wt */
|
|
PMB_DATA_SPIBOOT_D: .long mk_pmb_data_val(0x00, 0, 1, 1, 0, 0, 1)
|
|
PMB_DATA_DDR_C1_D: .long mk_pmb_data_val(0x48, 0, 1, 1, 0, 1, 1)
|
|
PMB_DATA_DDR_N1_D: .long mk_pmb_data_val(0x48, 1, 1, 1, 0, 0, 1)
|
|
|
|
PASCR_A: .long 0xff000070
|
|
DUMMY_ADDR: .long 0xa0000000
|
|
PASCR_29BIT_D: .long 0x00000000
|
|
PASCR_INIT: .long 0x80000080
|
|
MMUCR_A: .long 0xff000010
|
|
MMUCR_D: .long 0x00000004 /* clear ITLB */
|
|
#endif /* CONFIG_SH_32BIT */
|
|
|
|
CCR_A: .long CCR
|
|
CCR_D: .long CCR_CACHE_INIT
|
|
|