2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de
6 * See file CREDITS for list of people who contributed to this
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include "../common/kup.h"
34 static unsigned char swapbyte(unsigned char c);
35 static int read_diag(void);
37 DECLARE_GLOBAL_DATA_PTR;
39 /* ----------------------------------------------------------------------- */
41 #define _NOT_USED_ 0xFFFFFFFF
43 const uint sdram_table[] = {
45 * Single Read. (Offset 0 in UPMA RAM)
47 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
48 0x1FF77C47, /* last */
51 * SDRAM Initialization (offset 5 in UPMA RAM)
53 * This is no UPM entry point. The following definition uses
54 * the remaining space to establish an initialization
55 * sequence, which is executed by a RUN command.
58 0x1FF77C35, 0xEFEABC34, 0x1FB57C35, /* last */
61 * Burst Read. (Offset 8 in UPMA RAM)
63 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
64 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
65 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
66 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
69 * Single Write. (Offset 18 in UPMA RAM)
71 0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
72 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
75 * Burst Write. (Offset 20 in UPMA RAM)
77 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
78 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
80 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
81 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
84 * Refresh (Offset 30 in UPMA RAM)
86 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
87 0xFFFFFC84, 0xFFFFFC07, /* last */
88 _NOT_USED_, _NOT_USED_,
89 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
92 * Exception. (Offset 3c in UPMA RAM)
94 0x7FFFFC07, /* last */
95 _NOT_USED_, _NOT_USED_, _NOT_USED_,
98 /* ----------------------------------------------------------------------- */
101 * Check Board Identity:
106 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
107 uchar rev,mod,tmp,pcf,ak_rev,ak_mod;
110 * Init ChipSelect #4 (CAN + HW-Latch)
112 out_be32(&immap->im_memctl.memc_or4, CONFIG_SYS_OR4);
113 out_be32(&immap->im_memctl.memc_br4, CONFIG_SYS_BR4);
116 * Init ChipSelect #5 (S1D13768)
118 out_be32(&immap->im_memctl.memc_or5, CONFIG_SYS_OR5);
119 out_be32(&immap->im_memctl.memc_br5, CONFIG_SYS_BR5);
121 tmp = swapbyte(in_8((unsigned char*) LATCH_ADDR));
122 rev = (tmp & 0xF8) >> 3;
125 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
128 gd->flags &= ~GD_FLG_SILENT;
130 printf("Board: KUP4K Rev %d.%d AK:",rev,mod);
132 * TI Application report: Before using the IO as an input,
133 * a high must be written to the IO first
136 i2c_write(0x21, 0, 0 , &pcf, 1);
137 if (i2c_read(0x21, 0, 0, &pcf, 1)) {
140 ak_rev = (pcf & 0xF8) >> 3;
141 ak_mod = (pcf & 0x07);
142 printf("%d.%d\n", ak_rev, ak_mod);
147 /* ----------------------------------------------------------------------- */
150 phys_size_t initdram(int board_type)
152 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
153 volatile memctl8xx_t *memctl = &immap->im_memctl;
155 uchar *latch,rev,mod,tmp;
158 * Init ChipSelect #4 (CAN + HW-Latch) to determine Hardware Revision
159 * Rev 1..6 -> 48 MB RAM; Rev >= 7 -> 96 MB
161 out_be32(&immap->im_memctl.memc_or4, CONFIG_SYS_OR4);
162 out_be32(&immap->im_memctl.memc_br4, CONFIG_SYS_BR4);
164 latch = (uchar *)0x90000200;
165 tmp = swapbyte(*latch);
166 rev = (tmp & 0xF8) >> 3;
169 upmconfig(UPMA, (uint *) sdram_table,
170 sizeof (sdram_table) / sizeof (uint));
172 out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR);
174 out_be32(&memctl->memc_mar, 0x00000088);
177 out_be32(&memctl->memc_mamr,
178 CONFIG_SYS_MAMR_9COL & (~(MAMR_PTAE)));
180 out_be32(&memctl->memc_mamr,
181 CONFIG_SYS_MAMR_8COL & (~(MAMR_PTAE)));
186 /* perform SDRAM initializsation sequence */
189 out_be32(&memctl->memc_mcr, 0x80002105);
191 out_be32(&memctl->memc_mcr, 0x80002830); /* execute twice */
193 out_be32(&memctl->memc_mcr, 0x80002106); /* RUN MRS Pattern from loc 6 */
197 out_be32(&memctl->memc_mcr, 0x80004105);
199 out_be32(&memctl->memc_mcr, 0x80004830); /* execute twice */
201 out_be32(&memctl->memc_mcr, 0x80004106); /* RUN MRS Pattern from loc 6 */
205 out_be32(&memctl->memc_mcr, 0x80006105);
207 out_be32(&memctl->memc_mcr, 0x80006830); /* execute twice */
209 out_be32(&memctl->memc_mcr, 0x80006106); /* RUN MRS Pattern from loc 6 */
212 setbits_be32(&memctl->memc_mamr, MAMR_PTAE); /* enable refresh */
215 out_be16(&memctl->memc_mptpr, CONFIG_SYS_MPTPR);
218 size = 32 * 3 * 1024 * 1024;
219 out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_9COL);
220 out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_9COL);
221 out_be32(&memctl->memc_or2, CONFIG_SYS_OR2_9COL);
222 out_be32(&memctl->memc_br2, CONFIG_SYS_BR2_9COL);
223 out_be32(&memctl->memc_or3, CONFIG_SYS_OR3_9COL);
224 out_be32(&memctl->memc_br3, CONFIG_SYS_BR3_9COL);
226 size = 16 * 3 * 1024 * 1024;
227 out_be32(&memctl->memc_or1, CONFIG_SYS_OR1_8COL);
228 out_be32(&memctl->memc_br1, CONFIG_SYS_BR1_8COL);
229 out_be32(&memctl->memc_or2, CONFIG_SYS_OR2_8COL);
230 out_be32(&memctl->memc_br2, CONFIG_SYS_BR2_8COL);
231 out_be32(&memctl->memc_or3, CONFIG_SYS_OR3_8COL);
232 out_be32(&memctl->memc_br3, CONFIG_SYS_BR3_8COL);
237 /* ----------------------------------------------------------------------- */
240 int misc_init_r(void)
242 volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
244 #ifdef CONFIG_IDE_LED
245 /* Configure PA8 as output port */
246 setbits_be16(&immap->im_ioport.iop_padir, PA_8);
247 setbits_be16(&immap->im_ioport.iop_paodr, PA_8);
248 clrbits_be16(&immap->im_ioport.iop_papar, PA_8);
249 setbits_be16(&immap->im_ioport.iop_padat, PA_8); /* turn it off */
251 load_sernum_ethaddr();
258 static int read_diag(void)
261 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
263 clrbits_be16(&immr->im_ioport.iop_pcdir, PC_4); /* input */
264 clrbits_be16(&immr->im_ioport.iop_pcpar, PC_4); /* gpio */
265 setbits_be16(&immr->im_ioport.iop_pcdir, PC_5); /* output */
266 clrbits_be16(&immr->im_ioport.iop_pcpar, PC_4); /* gpio */
267 setbits_be16(&immr->im_ioport.iop_pcdat, PC_5); /* 1 */
269 if (in_be16(&immr->im_ioport.iop_pcdat) & PC_4) {
270 clrbits_be16(&immr->im_ioport.iop_pcdat, PC_5);/* 0 */
272 if(in_be16(&immr->im_ioport.iop_pcdat) & PC_4)
279 clrbits_be16(&immr->im_ioport.iop_pcdir, PC_5); /* input */
283 static unsigned char swapbyte(unsigned char c)
285 unsigned char result = 0;
288 for(i = 0; i < 8; ++i) {
289 result = result << 1;
297 * Device Tree Support
299 #if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT)
300 void ft_board_setup(void *blob, bd_t *bd)
302 ft_cpu_setup(blob, bd);
304 #endif /* defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_OF_LIBFDT) */