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Jens Scharsig77e72732010-02-03 22:48:09 +01001/*
2 * (C) Copyright 2008-2009
3 * BuS Elektronik GmbH & Co. KG <www.bus-elektronik.de>
4 * Jens Scharsig <esw@bus-elektronik.de>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
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.
13 *
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.
18 *
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,
22 * MA 02111-1307 USA
23 */
24
25#include <common.h>
26#include <exports.h>
27#include <net.h>
28#include <netdev.h>
29#include <nand.h>
30
31#include <asm/io.h>
32#include <asm/arch/hardware.h>
33#include <asm/arch/at91_pio.h>
34#include <asm/arch/at91_pmc.h>
35#include <asm/arch/at91_mc.h>
Andreas Bießmann5a05cb72011-06-12 01:49:15 +000036#include <asm/arch/at91_common.h>
Jens Scharsig77e72732010-02-03 22:48:09 +010037
38#ifdef CONFIG_STATUS_LED
39#include <status_led.h>
40#endif
41
42#ifdef CONFIG_VIDEO
43#include <bus_vcxk.h>
44
45extern unsigned long display_width;
46extern unsigned long display_height;
47#endif
48
49#ifdef CONFIG_CMD_NAND
50void cpux9k2_nand_hw_init(void);
51#endif
52
53DECLARE_GLOBAL_DATA_PTR;
54
55/*
56 * Miscelaneous platform dependent initialisations
57 */
58
59int board_init(void)
60{
Jens Scharsig80733992011-02-19 06:17:02 +000061 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +010062 /* Enable Ctrlc */
63 console_init_f();
64
65 /* Correct IRDA resistor problem / Set PA23_TXD in Output */
Jens Scharsig80733992011-02-19 06:17:02 +000066 writel(ATMEL_PMX_AA_TXD2, &pio->pioa.oer);
Jens Scharsig77e72732010-02-03 22:48:09 +010067
68 gd->bd->bi_arch_number = MACH_TYPE_EB_CPUX9K2;
69 /* adress of boot parameters */
Jens Scharsigcebcf7d2010-10-19 19:37:15 +020070 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
Jens Scharsig77e72732010-02-03 22:48:09 +010071
72#ifdef CONFIG_STATUS_LED
73 status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
74#endif
75#ifdef CONFIG_CMD_NAND
76 cpux9k2_nand_hw_init();
77#endif
78 return 0;
79}
80
Andreas Bießmann5a05cb72011-06-12 01:49:15 +000081int board_early_init_f(void)
82{
83 at91_seriald_hw_init();
84 return 0;
85}
86
Jens Scharsig77e72732010-02-03 22:48:09 +010087#ifdef CONFIG_MISC_INIT_R
88
89int misc_init_r(void)
90{
91 uchar mac[8];
92 uchar tm;
93 uchar midx;
94 uchar macn6, macn7;
95
96#ifdef CONFIG_NET_MULTI
97 if (getenv("ethaddr") == NULL) {
98 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x00,
99 CONFIG_SYS_I2C_EEPROM_ADDR_LEN,
100 (uchar *) &mac, sizeof(mac)) != 0) {
101 puts("Error reading MAC from EEPROM\n");
102 } else {
103 tm = 0;
104 macn6 = 0;
105 macn7 = 0xFF;
106 for (midx = 0; midx < 6; midx++) {
107 if ((mac[midx] != 0) && (mac[midx] != 0xFF))
108 tm++;
109 macn6 += mac[midx];
110 macn7 ^= mac[midx];
111 }
112 if ((macn6 != mac[6]) || (macn7 != mac[7]))
113 tm = 0;
114 if (tm)
115 eth_setenv_enetaddr("ethaddr", mac);
116 else
117 puts("Error: invalid MAC at EEPROM\n");
118 }
119 }
120#endif
121 gd->jt[XF_do_reset] = (void *) do_reset;
122
123#ifdef CONFIG_STATUS_LED
124 status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING);
125#endif
126 return 0;
127}
128#endif
129
130#ifdef CONFIG_RESET_PHY_R
131void reset_phy(void)
132{
133 udelay(10000);
134 eth_init(gd->bd);
135}
136#endif
137
138/*
139 * DRAM initialisations
140 */
141
142int dram_init(void)
143{
Albert ARIBAUDa55d23c2011-07-03 05:55:33 +0000144 gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
Jens Scharsigcebcf7d2010-10-19 19:37:15 +0200145 CONFIG_SYS_SDRAM_SIZE);
Jens Scharsig77e72732010-02-03 22:48:09 +0100146 return 0;
147}
148
149/*
150 * Ethernet initialisations
151 */
152
153#ifdef CONFIG_DRIVER_AT91EMAC
154int board_eth_init(bd_t *bis)
155{
156 int rc = 0;
Jens Scharsig80733992011-02-19 06:17:02 +0000157 rc = at91emac_register(bis, (u32) ATMEL_BASE_EMAC);
Jens Scharsig77e72732010-02-03 22:48:09 +0100158 return rc;
159}
160#endif
161
162/*
163 * Disk On Chip (NAND) Millenium initialization.
164 * The NAND lives in the CS2* space
165 */
166#if defined(CONFIG_CMD_NAND)
167
168#define MASK_ALE (1 << 22) /* our ALE is AD22 */
169#define MASK_CLE (1 << 21) /* our CLE is AD21 */
170
171void cpux9k2_nand_hw_init(void)
172{
173 unsigned long csr;
Jens Scharsig80733992011-02-19 06:17:02 +0000174 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
175 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
176 at91_mc_t *mc = (at91_mc_t *) ATMEL_BASE_MC;
Jens Scharsig77e72732010-02-03 22:48:09 +0100177
178 /* Setup Smart Media, fitst enable the address range of CS3 */
179 writel(readl(&mc->ebi.csa) | AT91_EBI_CSA_CS3A, &mc->ebi.csa);
180
181 /* RWH = 1 | RWS = 0 | TDF = 1 | NWS = 3 */
182 csr = AT91_SMC_CSR_RWHOLD(1) | AT91_SMC_CSR_TDF(1) |
183 AT91_SMC_CSR_NWS(3) |
184 AT91_SMC_CSR_ACSS_STANDARD | AT91_SMC_CSR_DBW_8 |
185 AT91_SMC_CSR_WSEN;
186 writel(csr, &mc->smc.csr[3]);
187
Jens Scharsig80733992011-02-19 06:17:02 +0000188 writel(ATMEL_PMX_CA_SMOE | ATMEL_PMX_CA_SMWE, &pio->pioc.asr);
189 writel(ATMEL_PMX_CA_BFCK | ATMEL_PMX_CA_SMOE | ATMEL_PMX_CA_SMWE,
Jens Scharsig77e72732010-02-03 22:48:09 +0100190 &pio->pioc.pdr);
191
192 /* Configure PC2 as input (signal Nand READY ) */
Jens Scharsig80733992011-02-19 06:17:02 +0000193 writel(ATMEL_PMX_CA_BFAVD, &pio->pioc.per);
194 writel(ATMEL_PMX_CA_BFAVD, &pio->pioc.odr); /* disable output */
195 writel(ATMEL_PMX_CA_BFCK, &pio->pioc.codr);
Jens Scharsig77e72732010-02-03 22:48:09 +0100196
197 /* PIOC clock enabling */
Jens Scharsig80733992011-02-19 06:17:02 +0000198 writel(1 << ATMEL_ID_PIOC, &pmc->pcer);
Jens Scharsig77e72732010-02-03 22:48:09 +0100199}
200
201static void board_nand_hwcontrol(struct mtd_info *mtd,
202 int cmd, unsigned int ctrl)
203{
Jens Scharsig80733992011-02-19 06:17:02 +0000204 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100205 struct nand_chip *this = mtd->priv;
206 ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
207
208 if (ctrl & NAND_CTRL_CHANGE) {
209 IO_ADDR_W &= ~(MASK_ALE | MASK_CLE);
210
211 if (ctrl & NAND_CLE)
212 IO_ADDR_W |= MASK_CLE;
213 if (ctrl & NAND_ALE)
214 IO_ADDR_W |= MASK_ALE;
215
216 if ((ctrl & NAND_NCE))
217 writel(1, &pio->pioc.codr);
218 else
219 writel(1, &pio->pioc.sodr);
220
221 this->IO_ADDR_W = (void *) IO_ADDR_W;
222 }
223 if (cmd != NAND_CMD_NONE)
224 writeb(cmd, this->IO_ADDR_W);
225}
226
227static int board_nand_dev_ready(struct mtd_info *mtd)
228{
Jens Scharsig80733992011-02-19 06:17:02 +0000229 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100230 return ((readl(&pio->pioc.pdsr) & (1 << 2)) != 0);
231}
232
233int board_nand_init(struct nand_chip *nand)
234{
235 cpux9k2_nand_hw_init();
236 nand->ecc.mode = NAND_ECC_SOFT;
237 nand->cmd_ctrl = board_nand_hwcontrol;
238 nand->dev_ready = board_nand_dev_ready;
239 nand->chip_delay = 20;
240 return 0;
241}
242
243#endif
244
245#if defined(CONFIG_VIDEO)
246/*
247 * drv_video_init
248 * FUNCTION: initialize VCxK device
249 */
250
251int drv_video_init(void)
252{
253#ifdef CONFIG_SPLASH_SCREEN
254 unsigned long splash;
255#endif
256 char *s;
257 unsigned long csr;
Jens Scharsig80733992011-02-19 06:17:02 +0000258 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
259 at91_mc_t *mc = (at91_mc_t *) ATMEL_BASE_MC;
Jens Scharsig77e72732010-02-03 22:48:09 +0100260
261 printf("Init Video as ");
262 s = getenv("displaywidth");
263 if (s != NULL)
264 display_width = simple_strtoul(s, NULL, 10);
265 else
266 display_width = 256;
267 s = getenv("displayheight");
268 if (s != NULL)
269 display_height = simple_strtoul(s, NULL, 10);
270 else
271 display_height = 256;
272 printf("%ld x %ld pixel matrix\n", display_width, display_height);
273
274 /* RWH = 7 | RWS =7 | TDF = 15 | NWS = 0x7F */
275 csr = AT91_SMC_CSR_RWHOLD(7) | AT91_SMC_CSR_RWSETUP(7) |
276 AT91_SMC_CSR_TDF(15) | AT91_SMC_CSR_NWS(127) |
277 AT91_SMC_CSR_ACSS_STANDARD | AT91_SMC_CSR_DBW_16 |
278 AT91_SMC_CSR_BAT_16 | AT91_SMC_CSR_WSEN;
279 writel(csr, &mc->smc.csr[2]);
Jens Scharsig80733992011-02-19 06:17:02 +0000280 writel(1 << ATMEL_ID_PIOB, &pmc->pcer);
Jens Scharsig77e72732010-02-03 22:48:09 +0100281
282 vcxk_init(display_width, display_height);
283#ifdef CONFIG_SPLASH_SCREEN
284 s = getenv("splashimage");
285 if (s != NULL) {
286 splash = simple_strtoul(s, NULL, 16);
287 printf("use splashimage: %lx\n", splash);
288 video_display_bitmap(splash, 0, 0);
289 }
290#endif
291 return 0;
292}
293#endif
294
295#ifdef CONFIG_SOFT_I2C
296
297void i2c_init_board(void)
298{
299 u32 pin;
Jens Scharsig80733992011-02-19 06:17:02 +0000300 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
301 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100302
Jens Scharsig80733992011-02-19 06:17:02 +0000303 writel(1 << ATMEL_ID_PIOA, &pmc->pcer);
304 pin = ATMEL_PMX_AA_TWD | ATMEL_PMX_AA_TWCK;
Jens Scharsig77e72732010-02-03 22:48:09 +0100305 writel(pin, &pio->pioa.idr);
306 writel(pin, &pio->pioa.pudr);
307 writel(pin, &pio->pioa.per);
308 writel(pin, &pio->pioa.oer);
309 writel(pin, &pio->pioa.sodr);
310}
311
312#endif
313
314/*--------------------------------------------------------------------------*/
315
316#ifdef CONFIG_STATUS_LED
317
318void __led_toggle(led_id_t mask)
319{
Jens Scharsig80733992011-02-19 06:17:02 +0000320 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100321
322 if (readl(&pio->piod.odsr) & mask)
323 writel(mask, &pio->piod.codr);
324 else
325 writel(mask, &pio->piod.codr);
326}
327
328void __led_init(led_id_t mask, int state)
329{
Jens Scharsig80733992011-02-19 06:17:02 +0000330 at91_pmc_t *pmc = (at91_pmc_t *) ATMEL_BASE_PMC;
331 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100332
Jens Scharsig80733992011-02-19 06:17:02 +0000333 writel(1 << ATMEL_ID_PIOD, &pmc->pcer); /* Enable PIOB clock */
Jens Scharsig77e72732010-02-03 22:48:09 +0100334 /* Disable peripherals on LEDs */
335 writel(STATUS_LED_BIT | STATUS_LED_BIT1, &pio->piod.per);
336 /* Enable pins as outputs */
337 writel(STATUS_LED_BIT | STATUS_LED_BIT1, &pio->piod.oer);
338 /* Turn all LEDs OFF */
339 writel(STATUS_LED_BIT | STATUS_LED_BIT1, &pio->piod.sodr);
340
341 __led_set(mask, state);
342}
343
344void __led_set(led_id_t mask, int state)
345{
Jens Scharsig80733992011-02-19 06:17:02 +0000346 at91_pio_t *pio = (at91_pio_t *) ATMEL_BASE_PIO;
Jens Scharsig77e72732010-02-03 22:48:09 +0100347 if (state == STATUS_LED_ON)
348 writel(mask, &pio->piod.codr);
349 else
350 writel(mask, &pio->piod.sodr);
351}
352
353#endif
354
355/*---------------------------------------------------------------------------*/
356
Wolfgang Denk54841ab2010-06-28 22:00:46 +0200357int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
Jens Scharsig77e72732010-02-03 22:48:09 +0100358{
359 int rcode = 0;
360 ulong side;
361 ulong bright;
362
363 switch (argc) {
364 case 3:
365 side = simple_strtoul(argv[1], NULL, 10);
366 bright = simple_strtoul(argv[2], NULL, 10);
367 if ((side >= 0) && (side <= 3) &&
368 (bright >= 0) && (bright <= 1000)) {
369 vcxk_setbrightness(side, bright);
370 rcode = 0;
371 } else {
372 printf("parameters out of range\n");
373 printf("Usage:\n%s\n", cmdtp->usage);
374 rcode = 1;
375 }
376 break;
377 default:
378 printf("Usage:\n%s\n", cmdtp->usage);
379 rcode = 1;
380 break;
381 }
382 return rcode;
383}
384
385/*---------------------------------------------------------------------------*/
386
387U_BOOT_CMD(
388 bright, 3, 0, do_brightness,
389 "bright - sets the display brightness\n",
390 " <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
391);
392
393/* EOF cpu9k2.c */