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>
36 #include <asm/arch/at91_common.h>
38 #ifdef CONFIG_STATUS_LED
39 #include <status_led.h>
45 extern unsigned long display_width
;
46 extern unsigned long display_height
;
49 #ifdef CONFIG_CMD_NAND
50 void cpux9k2_nand_hw_init(void);
53 DECLARE_GLOBAL_DATA_PTR
;
56 * Miscelaneous platform dependent initialisations
61 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
63 /* Correct IRDA resistor problem / Set PA23_TXD in Output */
64 writel(ATMEL_PMX_AA_TXD2
, &pio
->pioa
.oer
);
66 gd
->bd
->bi_arch_number
= MACH_TYPE_EB_CPUX9K2
;
67 /* adress of boot parameters */
68 gd
->bd
->bi_boot_params
= CONFIG_SYS_SDRAM_BASE
+ 0x100;
70 #ifdef CONFIG_STATUS_LED
71 status_led_set(STATUS_LED_BOOT
, STATUS_LED_ON
);
73 #ifdef CONFIG_CMD_NAND
74 cpux9k2_nand_hw_init();
79 int board_early_init_f(void)
81 at91_seriald_hw_init();
85 #ifdef CONFIG_MISC_INIT_R
94 if (getenv("ethaddr") == NULL
) {
95 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR
, 0x00,
96 CONFIG_SYS_I2C_EEPROM_ADDR_LEN
,
97 (uchar
*) &mac
, sizeof(mac
)) != 0) {
98 puts("Error reading MAC from EEPROM\n");
103 for (midx
= 0; midx
< 6; midx
++) {
104 if ((mac
[midx
] != 0) && (mac
[midx
] != 0xFF))
109 if ((macn6
!= mac
[6]) || (macn7
!= mac
[7]))
112 eth_setenv_enetaddr("ethaddr", mac
);
114 puts("Error: invalid MAC at EEPROM\n");
117 gd
->jt
[XF_do_reset
] = (void *) do_reset
;
119 #ifdef CONFIG_STATUS_LED
120 status_led_set(STATUS_LED_BOOT
, STATUS_LED_BLINKING
);
126 #ifdef CONFIG_RESET_PHY_R
135 * DRAM initialisations
140 gd
->ram_size
= get_ram_size((long *)CONFIG_SYS_SDRAM_BASE
,
141 CONFIG_SYS_SDRAM_SIZE
);
146 * Ethernet initialisations
149 #ifdef CONFIG_DRIVER_AT91EMAC
150 int board_eth_init(bd_t
*bis
)
153 rc
= at91emac_register(bis
, (u32
) ATMEL_BASE_EMAC
);
159 * Disk On Chip (NAND) Millenium initialization.
160 * The NAND lives in the CS2* space
162 #if defined(CONFIG_CMD_NAND)
164 #define MASK_ALE (1 << 22) /* our ALE is AD22 */
165 #define MASK_CLE (1 << 21) /* our CLE is AD21 */
167 void cpux9k2_nand_hw_init(void)
170 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
171 at91_pmc_t
*pmc
= (at91_pmc_t
*) ATMEL_BASE_PMC
;
172 at91_mc_t
*mc
= (at91_mc_t
*) ATMEL_BASE_MC
;
174 /* Setup Smart Media, fitst enable the address range of CS3 */
175 writel(readl(&mc
->ebi
.csa
) | AT91_EBI_CSA_CS3A
, &mc
->ebi
.csa
);
177 /* RWH = 1 | RWS = 0 | TDF = 1 | NWS = 3 */
178 csr
= AT91_SMC_CSR_RWHOLD(1) | AT91_SMC_CSR_TDF(1) |
179 AT91_SMC_CSR_NWS(3) |
180 AT91_SMC_CSR_ACSS_STANDARD
| AT91_SMC_CSR_DBW_8
|
182 writel(csr
, &mc
->smc
.csr
[3]);
184 writel(ATMEL_PMX_CA_SMOE
| ATMEL_PMX_CA_SMWE
, &pio
->pioc
.asr
);
185 writel(ATMEL_PMX_CA_BFCK
| ATMEL_PMX_CA_SMOE
| ATMEL_PMX_CA_SMWE
,
188 /* Configure PC2 as input (signal Nand READY ) */
189 writel(ATMEL_PMX_CA_BFAVD
, &pio
->pioc
.per
);
190 writel(ATMEL_PMX_CA_BFAVD
, &pio
->pioc
.odr
); /* disable output */
191 writel(ATMEL_PMX_CA_BFCK
, &pio
->pioc
.codr
);
193 /* PIOC clock enabling */
194 writel(1 << ATMEL_ID_PIOC
, &pmc
->pcer
);
197 static void board_nand_hwcontrol(struct mtd_info
*mtd
,
198 int cmd
, unsigned int ctrl
)
200 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
201 struct nand_chip
*this = mtd
->priv
;
202 ulong IO_ADDR_W
= (ulong
) this->IO_ADDR_W
;
204 if (ctrl
& NAND_CTRL_CHANGE
) {
205 IO_ADDR_W
&= ~(MASK_ALE
| MASK_CLE
);
208 IO_ADDR_W
|= MASK_CLE
;
210 IO_ADDR_W
|= MASK_ALE
;
212 if ((ctrl
& NAND_NCE
))
213 writel(1, &pio
->pioc
.codr
);
215 writel(1, &pio
->pioc
.sodr
);
217 this->IO_ADDR_W
= (void *) IO_ADDR_W
;
219 if (cmd
!= NAND_CMD_NONE
)
220 writeb(cmd
, this->IO_ADDR_W
);
223 static int board_nand_dev_ready(struct mtd_info
*mtd
)
225 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
226 return ((readl(&pio
->pioc
.pdsr
) & (1 << 2)) != 0);
229 int board_nand_init(struct nand_chip
*nand
)
231 cpux9k2_nand_hw_init();
232 nand
->ecc
.mode
= NAND_ECC_SOFT
;
233 nand
->cmd_ctrl
= board_nand_hwcontrol
;
234 nand
->dev_ready
= board_nand_dev_ready
;
235 nand
->chip_delay
= 20;
241 #if defined(CONFIG_VIDEO)
244 * FUNCTION: initialize VCxK device
247 int drv_video_init(void)
249 #ifdef CONFIG_SPLASH_SCREEN
250 unsigned long splash
;
254 at91_pmc_t
*pmc
= (at91_pmc_t
*) ATMEL_BASE_PMC
;
255 at91_mc_t
*mc
= (at91_mc_t
*) ATMEL_BASE_MC
;
257 printf("Init Video as ");
258 s
= getenv("displaywidth");
260 display_width
= simple_strtoul(s
, NULL
, 10);
263 s
= getenv("displayheight");
265 display_height
= simple_strtoul(s
, NULL
, 10);
267 display_height
= 256;
268 printf("%ld x %ld pixel matrix\n", display_width
, display_height
);
270 /* RWH = 2 | RWS =2 | TDF = 4 | NWS = 0x6 */
271 csr
= AT91_SMC_CSR_RWHOLD(2) | AT91_SMC_CSR_RWSETUP(2) |
272 AT91_SMC_CSR_TDF(4) | AT91_SMC_CSR_NWS(6) |
273 AT91_SMC_CSR_ACSS_STANDARD
| AT91_SMC_CSR_DBW_16
|
274 AT91_SMC_CSR_BAT_16
| AT91_SMC_CSR_WSEN
;
275 writel(csr
, &mc
->smc
.csr
[2]);
276 writel(1 << ATMEL_ID_PIOB
, &pmc
->pcer
);
278 vcxk_init(display_width
, display_height
);
279 #ifdef CONFIG_SPLASH_SCREEN
280 s
= getenv("splashimage");
282 splash
= simple_strtoul(s
, NULL
, 16);
283 printf("use splashimage: %lx\n", splash
);
284 video_display_bitmap(splash
, 0, 0);
291 #ifdef CONFIG_SYS_I2C_SOFT
293 void i2c_init_board(void)
296 at91_pmc_t
*pmc
= (at91_pmc_t
*) ATMEL_BASE_PMC
;
297 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
299 writel(1 << ATMEL_ID_PIOA
, &pmc
->pcer
);
300 pin
= ATMEL_PMX_AA_TWD
| ATMEL_PMX_AA_TWCK
;
301 writel(pin
, &pio
->pioa
.idr
);
302 writel(pin
, &pio
->pioa
.pudr
);
303 writel(pin
, &pio
->pioa
.per
);
304 writel(pin
, &pio
->pioa
.oer
);
305 writel(pin
, &pio
->pioa
.sodr
);
310 /*--------------------------------------------------------------------------*/
312 #ifdef CONFIG_STATUS_LED
314 void __led_toggle(led_id_t mask
)
316 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
318 if (readl(&pio
->piod
.odsr
) & mask
)
319 writel(mask
, &pio
->piod
.codr
);
321 writel(mask
, &pio
->piod
.codr
);
324 void __led_init(led_id_t mask
, int state
)
326 at91_pmc_t
*pmc
= (at91_pmc_t
*) ATMEL_BASE_PMC
;
327 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
329 writel(1 << ATMEL_ID_PIOD
, &pmc
->pcer
); /* Enable PIOB clock */
330 /* Disable peripherals on LEDs */
331 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.per
);
332 /* Enable pins as outputs */
333 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.oer
);
334 /* Turn all LEDs OFF */
335 writel(STATUS_LED_BIT
| STATUS_LED_BIT1
, &pio
->piod
.sodr
);
337 __led_set(mask
, state
);
340 void __led_set(led_id_t mask
, int state
)
342 at91_pio_t
*pio
= (at91_pio_t
*) ATMEL_BASE_PIO
;
343 if (state
== STATUS_LED_ON
)
344 writel(mask
, &pio
->piod
.codr
);
346 writel(mask
, &pio
->piod
.sodr
);
351 /*---------------------------------------------------------------------------*/
353 int do_brightness(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
361 side
= simple_strtoul(argv
[1], NULL
, 10);
362 bright
= simple_strtoul(argv
[2], NULL
, 10);
363 if ((side
>= 0) && (side
<= 3) &&
364 (bright
>= 0) && (bright
<= 1000)) {
365 vcxk_setbrightness(side
, bright
);
368 printf("parameters out of range\n");
369 printf("Usage:\n%s\n", cmdtp
->usage
);
374 printf("Usage:\n%s\n", cmdtp
->usage
);
381 /*---------------------------------------------------------------------------*/
384 bright
, 3, 0, do_brightness
,
385 "bright - sets the display brightness\n",
386 " <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"