[J-u-boot.git] / board / jornada / setup.S

/*
 * Memory Setup stuff - taken from blob memsetup.S
 *
 * Copyright (C) 1999 2000 2001 Erik Mouw ([email protected]) and
 *		       Jan-Derk Bakker ([email protected])
 * 2004 (c) MontaVista Software, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */


#include "config.h"
#include "version.h"


/*-----------------------------------------------------------------------
 * Board defines:
 */

#define MDCNFG		0x00
#define MDCAS00		0x04
#define MDCAS01		0x08
#define MDCAS02		0x0C
#define MSC0		0x10
#define MSC1		0x14
#define MECR		0x18
#define MDREFR		0x1C
#define MDCAS20		0x20
#define MDCAS21		0x24
#define MDCAS22		0x28
#define MSC2		0x2C
#define SMCNFG		0x30

#define GPDR	0x04
#define GPSR	0x08
#define GPCR	0x0C
#define GAFR	0x1C

#define PPDR	0x00
#define PPSR	0x04
#define PPAR	0x08

#define MDREFR_TRASR(n_) (n_ & (0x0000000f))
#define MDREFR_DRI(n_)   ((n_ & (0x00000fff)) << 4)
#define MDREFR_K0DB2 (1 << 18)
#define MDREFR_K1DB2 (1 << 22)
#define MDREFR_K2DB2 (1 << 26)

#define MDREFR_K0RUN (1 << 17)
#define MDREFR_K1RUN (1 << 21)
#define MDREFR_K2RUN (1 << 25)

#define MDREFR_SLFRSH (1 << 31)
#define MDREFR_E1PIN  (1 << 20)

#define PSSR    0x04
#define PSSR_DH 0x00000008
#define POSR    0x08
#define RCSR    0x04

/*-----------------------------------------------------------------------
 * Setup parameters for the board:
 */
MEM_BASE:	.long	0xa0000000
MEM_START:	.long	0xc0000000
PWR_BASE:	.word	0x90020000
RST_BASE:	.long	0x90030000
PPC_BASE:	.long	0x90060000
GPIO_BASE:	.long	0x90040000
IC_BASE:	.word	0x90050000

cpuspeed:	.word	0xa0
/* calculated from old blob bootloader */
mdcnfg:	.long	0x00037267	/* mdcnfg  0x00037267 */
mdcas00:	.long	0x5555557f	/* mdcas00 0x5555557f */
mdcas01:	.long	0x55555555	/* mdcas01 0x55555555 */
mdcas02:	.long	0x55555555	/* mdcas02 0x55555555 */
msc0:	.long	0xfff04f78		/* msc0    0xfff04f78 */
msc1:	.long	0xfff8fff0		/* msc1    0xfff8fff0 */
mecr:	.long	0x98c698c6	/* mecr    0x98c698c6 */
mdrefr:	.long	0x067600c7	/* mdrefr  0x04340327 */
mdcas20:	.long	0xd1284142	/* mdcas20 0xd1284142 */
mdcas21:	.long	0x72249529	/* mdcas21 0x72249529 */
mdcas22:	.long	0x78414351	/* mdcas22 0x78414351 */
msc2:	.long	0x201d2959		/* msc2    0x201d2959 */
smcnfg:	.long	0x00000000	/* smcnfg  0x00000000 */

pin_set_out:	.long	0x37ff70
pin_set_dir:	.long	0x11480

gpdr_set:	.long	0x0B3A0900
gpsr_set:	.long	0x02100800
gpcr_set:	.long	0x092A0100
gafr_set:	.long	0x08600000

.globl lowlevel_init
lowlevel_init:


	/* this is required for flashing */
	ldr	r0, PPC_BASE
	ldr	r1, pin_set_out
	str	r1, [r0, #PPSR]
	ldr	r1, pin_set_dir
	str	r1, [r0, #PPDR]

	/* Setting up the memory and stuff */
	/***********************************/

	ldr	r0, MEM_BASE

	ldr	r1, mdcnfg
	str	r1, [r0, #MDCNFG]
	ldr	r1, mdcas00
	str	r1, [r0, #MDCAS00]
	ldr	r1, mdcas01
	str	r1, [r0, #MDCAS01]
	ldr	r1, mdcas02
	str	r1, [r0, #MDCAS02]
	ldr	r1, mdcas20
	str	r1, [r0, #MDCAS20]
	ldr	r1, mdcas21
	str	r1, [r0, #MDCAS21]
	ldr	r1, mdcas22
	str	r1, [r0, #MDCAS22]

	/* clear kxDB2 */
	ldr	r2, [r0, #MDREFR]
	bic	r2, r2, #MDREFR_K0DB2
	bic	r2, r2, #MDREFR_K1DB2
	bic	r2, r2, #MDREFR_K2DB2
	str	r2, [r0, #MDREFR]

	ldr	r2, [r0, #MDREFR]
	orr r2, r2, #MDREFR_TRASR(7)

	mov r4, #0x2000
	spin:	subs	r4, r4, #1
	bne	spin

	ldr	r1, PWR_BASE
	mov	r2, #PSSR_DH
	str	r2, [r1, #PSSR]

	ldr	r2, [r0, #MDREFR]
	bic	r2, r2, #MDREFR_K0DB2
	bic	r2, r2, #MDREFR_K1DB2
	bic	r2, r2, #MDREFR_K2DB2
	str	r2, [r0, #MDREFR]

	ldr	r2, [r0, #MDREFR]
	orr	r2, r2, #MDREFR_TRASR(7)
	orr	r2, r2, #MDREFR_DRI(12)
	orr	r2, r2, #MDREFR_K0DB2
	orr	r2, r2, #MDREFR_K1DB2
	orr	r2, r2, #MDREFR_K2DB2
	str	r2, [r0, #MDREFR]

	ldr	r2, [r0, #MDREFR]
	orr	r2, r2, #MDREFR_K0RUN
	orr	r2, r2, #MDREFR_K1RUN
	orr	r2, r2, #MDREFR_K2RUN
	str	r2, [r0, #MDREFR]

	ldr	r2, [r0, #MDREFR]
	bic	r2, r2, #MDREFR_SLFRSH
	str	r2, [r0, #MDREFR]

	ldr	r2, [r0, #MDREFR]
	orr	r2, r2, #MDREFR_E1PIN
	str	r2, [r0, #MDREFR]

	ldr	r2, MEM_START
.rept	8
	ldr	r3, [r2]
.endr

	ldr	r2, [r0, #MDCNFG]
	orr	r2, r2, #0x00000003
	orr	r2, r2, #0x00030000
	str	r2, [r0, #MDCNFG]

	ldr	r1, msc0
	str	r1, [r0, #MSC0]
	ldr	r1, msc1
	str	r1, [r0, #MSC1]
	ldr	r1, msc2
	str	r1, [r0, #MSC2]
	ldr	r1, smcnfg
	str	r1, [r0, #SMCNFG]
	ldr	r1, mecr
	str	r1, [r0, #MECR]

	mov	pc, lr
Commit	Line	Data
80bf2bb5 KE	1	/*
	2	* Memory Setup stuff - taken from blob memsetup.S
	3	*
	4	* Copyright (C) 1999 2000 2001 Erik Mouw ([email protected]) and
	5	* Jan-Derk Bakker ([email protected])
	6	* 2004 (c) MontaVista Software, Inc.
	7	*
3765b3e7	8	* SPDX-License-Identifier: GPL-2.0+
80bf2bb5 KE	9	*/
	10
	11
	12	#include "config.h"
	13	#include "version.h"
	14
	15
	16	/*-----------------------------------------------------------------------
	17	* Board defines:
	18	*/
	19
	20	#define MDCNFG 0x00
	21	#define MDCAS00 0x04
	22	#define MDCAS01 0x08
	23	#define MDCAS02 0x0C
	24	#define MSC0 0x10
	25	#define MSC1 0x14
	26	#define MECR 0x18
	27	#define MDREFR 0x1C
	28	#define MDCAS20 0x20
	29	#define MDCAS21 0x24
	30	#define MDCAS22 0x28
	31	#define MSC2 0x2C
	32	#define SMCNFG 0x30
	33
	34	#define GPDR 0x04
	35	#define GPSR 0x08
	36	#define GPCR 0x0C
	37	#define GAFR 0x1C
	38
	39	#define PPDR 0x00
	40	#define PPSR 0x04
	41	#define PPAR 0x08
	42
	43	#define MDREFR_TRASR(n_) (n_ & (0x0000000f))
	44	#define MDREFR_DRI(n_) ((n_ & (0x00000fff)) << 4)
	45	#define MDREFR_K0DB2 (1 << 18)
	46	#define MDREFR_K1DB2 (1 << 22)
	47	#define MDREFR_K2DB2 (1 << 26)
	48
	49	#define MDREFR_K0RUN (1 << 17)
	50	#define MDREFR_K1RUN (1 << 21)
	51	#define MDREFR_K2RUN (1 << 25)
	52
	53	#define MDREFR_SLFRSH (1 << 31)
	54	#define MDREFR_E1PIN (1 << 20)
	55
	56	#define PSSR 0x04
	57	#define PSSR_DH 0x00000008
	58	#define POSR 0x08
	59	#define RCSR 0x04
	60
	61	/*-----------------------------------------------------------------------
	62	* Setup parameters for the board:
	63	*/
	64	MEM_BASE: .long 0xa0000000
	65	MEM_START: .long 0xc0000000
	66	PWR_BASE: .word 0x90020000
	67	RST_BASE: .long 0x90030000
	68	PPC_BASE: .long 0x90060000
	69	GPIO_BASE: .long 0x90040000
	70	IC_BASE: .word 0x90050000
	71
	72	cpuspeed: .word 0xa0
73	/* calculated from old blob bootloader */
74	mdcnfg: .long 0x00037267 /* mdcnfg 0x00037267 */
75	mdcas00: .long 0x5555557f /* mdcas00 0x5555557f */
76	mdcas01: .long 0x55555555 /* mdcas01 0x55555555 */
77	mdcas02: .long 0x55555555 /* mdcas02 0x55555555 */
78	msc0: .long 0xfff04f78 /* msc0 0xfff04f78 */
79	msc1: .long 0xfff8fff0 /* msc1 0xfff8fff0 */
80	mecr: .long 0x98c698c6 /* mecr 0x98c698c6 */
81	mdrefr: .long 0x067600c7 /* mdrefr 0x04340327 */
82	mdcas20: .long 0xd1284142 /* mdcas20 0xd1284142 */
83	mdcas21: .long 0x72249529 /* mdcas21 0x72249529 */
84	mdcas22: .long 0x78414351 /* mdcas22 0x78414351 */
85	msc2: .long 0x201d2959 /* msc2 0x201d2959 */
86	smcnfg: .long 0x00000000 /* smcnfg 0x00000000 */
87
88	pin_set_out: .long 0x37ff70
89	pin_set_dir: .long 0x11480
90
91	gpdr_set: .long 0x0B3A0900
92	gpsr_set: .long 0x02100800
93	gpcr_set: .long 0x092A0100
94	gafr_set: .long 0x08600000
95
96	.globl lowlevel_init
97	lowlevel_init:
98
f4f88921 KE	99
	100	/* this is required for flashing */
	101	ldr r0, PPC_BASE
	102	ldr r1, pin_set_out
	103	str r1, [r0, #PPSR]
	104	ldr r1, pin_set_dir
	105	str r1, [r0, #PPDR]
80bf2bb5 KE	106
	107	/* Setting up the memory and stuff */
	108	/***********************************/
	109
	110	ldr r0, MEM_BASE
	111
	112	ldr r1, mdcnfg
	113	str r1, [r0, #MDCNFG]
	114	ldr r1, mdcas00
	115	str r1, [r0, #MDCAS00]
	116	ldr r1, mdcas01
	117	str r1, [r0, #MDCAS01]
	118	ldr r1, mdcas02
	119	str r1, [r0, #MDCAS02]
	120	ldr r1, mdcas20
	121	str r1, [r0, #MDCAS20]
	122	ldr r1, mdcas21
	123	str r1, [r0, #MDCAS21]
	124	ldr r1, mdcas22
	125	str r1, [r0, #MDCAS22]
	126
	127	/* clear kxDB2 */
	128	ldr r2, [r0, #MDREFR]
	129	bic r2, r2, #MDREFR_K0DB2
	130	bic r2, r2, #MDREFR_K1DB2
	131	bic r2, r2, #MDREFR_K2DB2
	132	str r2, [r0, #MDREFR]
	133
	134	ldr r2, [r0, #MDREFR]
	135	orr r2, r2, #MDREFR_TRASR(7)
	136
	137	mov r4, #0x2000
	138	spin: subs r4, r4, #1
	139	bne spin
	140
	141	ldr r1, PWR_BASE
	142	mov r2, #PSSR_DH
	143	str r2, [r1, #PSSR]
	144
	145	ldr r2, [r0, #MDREFR]
	146	bic r2, r2, #MDREFR_K0DB2
	147	bic r2, r2, #MDREFR_K1DB2
	148	bic r2, r2, #MDREFR_K2DB2
	149	str r2, [r0, #MDREFR]
	150
	151	ldr r2, [r0, #MDREFR]
	152	orr r2, r2, #MDREFR_TRASR(7)
	153	orr r2, r2, #MDREFR_DRI(12)
	154	orr r2, r2, #MDREFR_K0DB2
	155	orr r2, r2, #MDREFR_K1DB2
	156	orr r2, r2, #MDREFR_K2DB2
	157	str r2, [r0, #MDREFR]
	158
	159	ldr r2, [r0, #MDREFR]
	160	orr r2, r2, #MDREFR_K0RUN
	161	orr r2, r2, #MDREFR_K1RUN
	162	orr r2, r2, #MDREFR_K2RUN
	163	str r2, [r0, #MDREFR]
	164
	165	ldr r2, [r0, #MDREFR]
	166	bic r2, r2, #MDREFR_SLFRSH
	167	str r2, [r0, #MDREFR]
	168
	169	ldr r2, [r0, #MDREFR]
170	orr r2, r2, #MDREFR_E1PIN
171	str r2, [r0, #MDREFR]
172
173	ldr r2, MEM_START
174	.rept 8
175	ldr r3, [r2]
176	.endr
177
f4f88921 KE	178	ldr r2, [r0, #MDCNFG]
	179	orr r2, r2, #0x00000003
	180	orr r2, r2, #0x00030000
	181	str r2, [r0, #MDCNFG]
	182
80bf2bb5 KE	183	ldr r1, msc0
	184	str r1, [r0, #MSC0]
	185	ldr r1, msc1
	186	str r1, [r0, #MSC1]
	187	ldr r1, msc2
	188	str r1, [r0, #MSC2]
	189	ldr r1, smcnfg
	190	str r1, [r0, #SMCNFG]
80bf2bb5 KE	191	ldr r1, mecr
	192	str r1, [r0, #MECR]
	193
80bf2bb5	194	mov pc, lr