2 * (C) Copyright 2008-2009
3 * BuS Elektronik GmbH & Co. KG <www.bus-elektronik.de>
4 * Jens Scharsig <esw@bus-elektronik.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,
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>
37 #ifdef CONFIG_STATUS_LED
38 #include <status_led.h>
44 extern unsigned long display_width
;
45 extern unsigned long display_height
;
48 #ifdef CONFIG_CMD_NAND
49 void cpux9k2_nand_hw_init(void);
52 DECLARE_GLOBAL_DATA_PTR
;
55 * Miscelaneous platform dependent initialisations
60 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
64 /* Correct IRDA resistor problem / Set PA23_TXD in Output */
65 writel(AT91_PMX_AA_TXD2
, &pio
->pioa
.oer
);
67 gd
->bd
->bi_arch_number
= MACH_TYPE_EB_CPUX9K2
;
68 /* adress of boot parameters */
69 gd
->bd
->bi_boot_params
= CONFIG_SYS_SDRAM_BASE
+ 0x100;
71 #ifdef CONFIG_STATUS_LED
72 status_led_set(STATUS_LED_BOOT
, STATUS_LED_ON
);
74 #ifdef CONFIG_CMD_NAND
75 cpux9k2_nand_hw_init();
80 #ifdef CONFIG_MISC_INIT_R
89 #ifdef CONFIG_NET_MULTI
90 if (getenv("ethaddr") == NULL
) {
91 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR
, 0x00,
92 CONFIG_SYS_I2C_EEPROM_ADDR_LEN
,
93 (uchar
*) &mac
, sizeof(mac
)) != 0) {
94 puts("Error reading MAC from EEPROM\n");
99 for (midx
= 0; midx
< 6; midx
++) {
100 if ((mac
[midx
] != 0) && (mac
[midx
] != 0xFF))
105 if ((macn6
!= mac
[6]) || (macn7
!= mac
[7]))
108 eth_setenv_enetaddr("ethaddr", mac
);
110 puts("Error: invalid MAC at EEPROM\n");
114 gd
->jt
[XF_do_reset
] = (void *) do_reset
;
116 #ifdef CONFIG_STATUS_LED
117 status_led_set(STATUS_LED_BOOT
, STATUS_LED_BLINKING
);
123 #ifdef CONFIG_RESET_PHY_R
132 * DRAM initialisations
137 gd
->ram_size
= get_ram_size((volatile long *)CONFIG_SYS_SDRAM_BASE
,
138 CONFIG_SYS_SDRAM_SIZE
);
143 * Ethernet initialisations
146 #ifdef CONFIG_DRIVER_AT91EMAC
147 int board_eth_init(bd_t
*bis
)
150 rc
= at91emac_register(bis
, (u32
) AT91_EMAC_BASE
);
156 * Disk On Chip (NAND) Millenium initialization.
157 * The NAND lives in the CS2* space
159 #if defined(CONFIG_CMD_NAND)
161 #define MASK_ALE (1 << 22) /* our ALE is AD22 */
162 #define MASK_CLE (1 << 21) /* our CLE is AD21 */
164 void cpux9k2_nand_hw_init(void)
167 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
168 at91_pmc_t
*pmc
= (at91_pmc_t
*) AT91_PMC_BASE
;
169 at91_mc_t
*mc
= (at91_mc_t
*) AT91_MC_BASE
;
171 /* Setup Smart Media, fitst enable the address range of CS3 */
172 writel(readl(&mc
->ebi
.csa
) | AT91_EBI_CSA_CS3A
, &mc
->ebi
.csa
);
174 /* RWH = 1 | RWS = 0 | TDF = 1 | NWS = 3 */
175 csr
= AT91_SMC_CSR_RWHOLD(1) | AT91_SMC_CSR_TDF(1) |
176 AT91_SMC_CSR_NWS(3) |
177 AT91_SMC_CSR_ACSS_STANDARD
| AT91_SMC_CSR_DBW_8
|
179 writel(csr
, &mc
->smc
.csr
[3]);
181 writel(AT91_PMX_CA_SMOE
| AT91_PMX_CA_SMWE
, &pio
->pioc
.asr
);
182 writel(AT91_PMX_CA_BFCK
| AT91_PMX_CA_SMOE
| AT91_PMX_CA_SMWE
,
185 /* Configure PC2 as input (signal Nand READY ) */
186 writel(AT91_PMX_CA_BFAVD
, &pio
->pioc
.per
);
187 writel(AT91_PMX_CA_BFAVD
, &pio
->pioc
.odr
); /* disable output */
188 writel(AT91_PMX_CA_BFCK
, &pio
->pioc
.codr
);
190 /* PIOC clock enabling */
191 writel(1 << AT91_ID_PIOC
, &pmc
->pcer
);
194 static void board_nand_hwcontrol(struct mtd_info
*mtd
,
195 int cmd
, unsigned int ctrl
)
197 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
198 struct nand_chip
*this = mtd
->priv
;
199 ulong IO_ADDR_W
= (ulong
) this->IO_ADDR_W
;
201 if (ctrl
& NAND_CTRL_CHANGE
) {
202 IO_ADDR_W
&= ~(MASK_ALE
| MASK_CLE
);
205 IO_ADDR_W
|= MASK_CLE
;
207 IO_ADDR_W
|= MASK_ALE
;
209 if ((ctrl
& NAND_NCE
))
210 writel(1, &pio
->pioc
.codr
);
212 writel(1, &pio
->pioc
.sodr
);
214 this->IO_ADDR_W
= (void *) IO_ADDR_W
;
216 if (cmd
!= NAND_CMD_NONE
)
217 writeb(cmd
, this->IO_ADDR_W
);
220 static int board_nand_dev_ready(struct mtd_info
*mtd
)
222 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
223 return ((readl(&pio
->pioc
.pdsr
) & (1 << 2)) != 0);
226 int board_nand_init(struct nand_chip
*nand
)
228 cpux9k2_nand_hw_init();
229 nand
->ecc
.mode
= NAND_ECC_SOFT
;
230 nand
->cmd_ctrl
= board_nand_hwcontrol
;
231 nand
->dev_ready
= board_nand_dev_ready
;
232 nand
->chip_delay
= 20;
238 #if defined(CONFIG_VIDEO)
241 * FUNCTION: initialize VCxK device
244 int drv_video_init(void)
246 #ifdef CONFIG_SPLASH_SCREEN
247 unsigned long splash
;
251 at91_pmc_t
*pmc
= (at91_pmc_t
*) AT91_PMC_BASE
;
252 at91_mc_t
*mc
= (at91_mc_t
*) AT91_MC_BASE
;
254 printf("Init Video as ");
255 s
= getenv("displaywidth");
257 display_width
= simple_strtoul(s
, NULL
, 10);
260 s
= getenv("displayheight");
262 display_height
= simple_strtoul(s
, NULL
, 10);
264 display_height
= 256;
265 printf("%ld x %ld pixel matrix\n", display_width
, display_height
);
267 /* RWH = 7 | RWS =7 | TDF = 15 | NWS = 0x7F */
268 csr
= AT91_SMC_CSR_RWHOLD(7) | AT91_SMC_CSR_RWSETUP(7) |
269 AT91_SMC_CSR_TDF(15) | AT91_SMC_CSR_NWS(127) |
270 AT91_SMC_CSR_ACSS_STANDARD
| AT91_SMC_CSR_DBW_16
|
271 AT91_SMC_CSR_BAT_16
| AT91_SMC_CSR_WSEN
;
272 writel(csr
, &mc
->smc
.csr
[2]);
273 writel(1 << AT91_ID_PIOB
, &pmc
->pcer
);
275 vcxk_init(display_width
, display_height
);
276 #ifdef CONFIG_SPLASH_SCREEN
277 s
= getenv("splashimage");
279 splash
= simple_strtoul(s
, NULL
, 16);
280 printf("use splashimage: %lx\n", splash
);
281 video_display_bitmap(splash
, 0, 0);
288 #ifdef CONFIG_SOFT_I2C
290 void i2c_init_board(void)
293 at91_pmc_t
*pmc
= (at91_pmc_t
*) AT91_PMC_BASE
;
294 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
296 writel(1 << AT91_ID_PIOA
, &pmc
->pcer
);
297 pin
= AT91_PMX_AA_TWD
| AT91_PMX_AA_TWCK
;
298 writel(pin
, &pio
->pioa
.idr
);
299 writel(pin
, &pio
->pioa
.pudr
);
300 writel(pin
, &pio
->pioa
.per
);
301 writel(pin
, &pio
->pioa
.oer
);
302 writel(pin
, &pio
->pioa
.sodr
);
307 /*--------------------------------------------------------------------------*/
309 #ifdef CONFIG_STATUS_LED
311 void __led_toggle(led_id_t mask
)
313 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
315 if (readl(&pio
->piod
.odsr
) & mask
)
316 writel(mask
, &pio
->piod
.codr
);
318 writel(mask
, &pio
->piod
.codr
);
321 void __led_init(led_id_t mask
, int state
)
323 at91_pmc_t
*pmc
= (at91_pmc_t
*) AT91_PMC_BASE
;
324 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
326 writel(1 << AT91_ID_PIOD
, &pmc
->pcer
); /* Enable PIOB clock */
327 /* Disable peripherals on LEDs */
328 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.per
);
329 /* Enable pins as outputs */
330 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.oer
);
331 /* Turn all LEDs OFF */
332 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.sodr
);
334 __led_set(mask
, state
);
337 void __led_set(led_id_t mask
, int state
)
339 at91_pio_t
*pio
= (at91_pio_t
*) AT91_PIO_BASE
;
340 if (state
== STATUS_LED_ON
)
341 writel(mask
, &pio
->piod
.codr
);
343 writel(mask
, &pio
->piod
.sodr
);
348 /*---------------------------------------------------------------------------*/
350 int do_brightness(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
358 side
= simple_strtoul(argv
[1], NULL
, 10);
359 bright
= simple_strtoul(argv
[2], NULL
, 10);
360 if ((side
>= 0) && (side
<= 3) &&
361 (bright
>= 0) && (bright
<= 1000)) {
362 vcxk_setbrightness(side
, bright
);
365 printf("parameters out of range\n");
366 printf("Usage:\n%s\n", cmdtp
->usage
);
371 printf("Usage:\n%s\n", cmdtp
->usage
);
378 /*---------------------------------------------------------------------------*/
381 bright
, 3, 0, do_brightness
,
382 "bright - sets the display brightness\n",
383 " <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"