2 * (C) Copyright 2007-2013
3 * Stefan Roese, DENX Software Engineering, sr@denx.de.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of
8 * the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 #include <asm/ppc440.h>
24 #include <asm/processor.h>
25 #include <asm/ppc4xx-gpio.h>
29 #include <mtd/cfi_flash.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 static phys_addr_t lwmon5_cfi_flash_bank_addr[2] = CONFIG_SYS_FLASH_BANKS_LIST;
35 ulong flash_get_size(ulong base, int banknum);
36 int misc_init_r_kbd(void);
38 int board_early_init_f(void)
40 u32 sdr0_pfc1, sdr0_pfc2;
43 /* PLB Write pipelining disabled. Denali Core workaround */
44 mtdcr(PLB4A0_ACR, 0xDE000000);
45 mtdcr(PLB4A1_ACR, 0xDE000000);
47 /*--------------------------------------------------------------------
48 * Setup the interrupt controller polarities, triggers, etc.
49 *-------------------------------------------------------------------*/
50 mtdcr(UIC0SR, 0xffffffff); /* clear all. if write with 1 then the status is cleared */
51 mtdcr(UIC0ER, 0x00000000); /* disable all */
52 mtdcr(UIC0CR, 0x00000000); /* we have not critical interrupts at the moment */
53 mtdcr(UIC0PR, 0xFFBFF1EF); /* Adjustment of the polarity */
54 mtdcr(UIC0TR, 0x00000900); /* per ref-board manual */
55 mtdcr(UIC0VR, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
56 mtdcr(UIC0SR, 0xffffffff); /* clear all */
58 mtdcr(UIC1SR, 0xffffffff); /* clear all */
59 mtdcr(UIC1ER, 0x00000000); /* disable all */
60 mtdcr(UIC1CR, 0x00000000); /* all non-critical */
61 mtdcr(UIC1PR, 0xFFFFC6A5); /* Adjustment of the polarity */
62 mtdcr(UIC1TR, 0x60000040); /* per ref-board manual */
63 mtdcr(UIC1VR, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
64 mtdcr(UIC1SR, 0xffffffff); /* clear all */
66 mtdcr(UIC2SR, 0xffffffff); /* clear all */
67 mtdcr(UIC2ER, 0x00000000); /* disable all */
68 mtdcr(UIC2CR, 0x00000000); /* all non-critical */
69 mtdcr(UIC2PR, 0x27C00000); /* Adjustment of the polarity */
70 mtdcr(UIC2TR, 0x3C000000); /* per ref-board manual */
71 mtdcr(UIC2VR, 0x00000000); /* int31 highest, base=0x000 is within DDRAM */
72 mtdcr(UIC2SR, 0xffffffff); /* clear all */
74 /* Trace Pins are disabled. SDR0_PFC0 Register */
75 mtsdr(SDR0_PFC0, 0x0);
77 /* select Ethernet pins */
78 mfsdr(SDR0_PFC1, sdr0_pfc1);
80 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SELECT_MASK) |
81 SDR0_PFC1_SELECT_CONFIG_6;
82 mfsdr(SDR0_PFC2, sdr0_pfc2);
83 sdr0_pfc2 = (sdr0_pfc2 & ~SDR0_PFC2_SELECT_MASK) |
84 SDR0_PFC2_SELECT_CONFIG_6;
86 /* enable SPI (SCP) */
87 sdr0_pfc1 = (sdr0_pfc1 & ~SDR0_PFC1_SIS_MASK) | SDR0_PFC1_SIS_SCP_SEL;
89 mtsdr(SDR0_PFC2, sdr0_pfc2);
90 mtsdr(SDR0_PFC1, sdr0_pfc1);
92 mtsdr(SDR0_PFC4, 0x80000000);
94 /* PCI arbiter disabled */
95 /* PCI Host Configuration disbaled */
96 mfsdr(SDR0_PCI0, reg);
98 mtsdr(SDR0_PCI0, 0x00000000 | reg);
100 gpio_write_bit(CONFIG_SYS_GPIO_FLASH_WP, 1);
102 #if CONFIG_POST & CONFIG_SYS_POST_BSPEC1
103 /* enable the LSB transmitter */
104 gpio_write_bit(CONFIG_SYS_GPIO_LSB_ENABLE, 1);
105 /* enable the CAN transmitter */
106 gpio_write_bit(CONFIG_SYS_GPIO_CAN_ENABLE, 1);
108 reg = 0; /* reuse as counter */
109 out_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR,
110 in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR)
111 & ~CONFIG_SYS_DSPIC_TEST_MASK);
112 while (gpio_read_in_bit(CONFIG_SYS_GPIO_DSPIC_READY) && reg++ < 1000) {
115 if (gpio_read_in_bit(CONFIG_SYS_GPIO_DSPIC_READY)) {
116 /* set "boot error" flag */
117 out_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR,
118 in_be32((void *)CONFIG_SYS_DSPIC_TEST_ADDR) |
119 CONFIG_SYS_DSPIC_TEST_MASK);
125 * The PHY's need a 2nd reset pulse, since the MDIO address is latched
126 * upon reset, and with the first reset upon powerup, the addresses are
127 * not latched reliable, since the IRQ line is multiplexed with an
128 * MDIO address. A 2nd reset at this time will make sure, that the
129 * correct address is latched.
131 gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 1);
132 gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 1);
134 gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 0);
135 gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 0);
137 gpio_write_bit(CONFIG_SYS_GPIO_PHY0_RST, 1);
138 gpio_write_bit(CONFIG_SYS_GPIO_PHY1_RST, 1);
144 * Override weak default with board specific version
146 phys_addr_t cfi_flash_bank_addr(int bank)
148 return lwmon5_cfi_flash_bank_addr[bank];
152 * Override the weak default mapping function with a board specific one
154 u32 flash_get_bank_size(int cs, int idx)
156 return flash_info[idx].size;
159 int board_early_init_r(void)
164 * lwmon5 is manufactured in 2 different board versions:
165 * The lwmon5a board has 64MiB NOR flash instead of the
166 * 128MiB of the original lwmon5. Unfortunately the CFI driver
167 * will report 2 banks of 64MiB even for the smaller flash
168 * chip, since the bank is mirrored. To fix this, we bring
169 * one bank into CFI query mode and read its response. This
170 * enables us to detect the real number of flash devices/
171 * banks which will be used later on by the common CFI driver.
174 /* Put bank 0 into CFI command mode and read */
175 out_be32((void *)CONFIG_SYS_FLASH0, 0x00980098);
176 val0 = in_be32((void *)CONFIG_SYS_FLASH0 + FLASH_OFFSET_CFI_RESP);
177 val1 = in_be32((void *)CONFIG_SYS_FLASH1 + FLASH_OFFSET_CFI_RESP);
179 /* Reset flash again out of query mode */
180 out_be32((void *)CONFIG_SYS_FLASH0, 0x00f000f0);
182 /* When not identical, we have 2 different flash devices/banks */
187 * Now we're sure that we're running on a LWMON5a board with
188 * only 64MiB NOR flash in one bank:
190 * Set flash base address and bank count for CFI driver probing.
192 cfi_flash_num_flash_banks = 1;
193 lwmon5_cfi_flash_bank_addr[0] = CONFIG_SYS_FLASH0;
198 int misc_init_r(void)
203 #ifndef CONFIG_LCD4_LWMON5
204 unsigned long usb2d0cr = 0;
205 unsigned long usb2phy0cr, usb2h0cr = 0;
206 unsigned long sdr0_pfc1, sdr0_srst;
213 /* Re-do sizing to get full correct info */
215 /* adjust flash start and offset */
216 gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
217 gd->bd->bi_flashoffset = 0;
220 size_val = ffs(gd->bd->bi_flashsize) - 21;
221 pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
225 * Re-check to get correct base address
227 flash_get_size(gd->bd->bi_flashstart, 0);
229 /* Monitor protection ON by default */
230 flash_protect(FLAG_PROTECT_SET, -CONFIG_SYS_MONITOR_LEN, 0xffffffff,
231 &flash_info[cfi_flash_num_flash_banks - 1]);
233 /* Env protection ON by default */
234 flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR_REDUND,
235 CONFIG_ENV_ADDR_REDUND + 2 * CONFIG_ENV_SECT_SIZE - 1,
236 &flash_info[cfi_flash_num_flash_banks - 1]);
238 #ifndef CONFIG_LCD4_LWMON5
244 /* Reset of USB2PHY0 must be active at least 10 us */
245 mtsdr(SDR0_SRST0, SDR0_SRST0_USB2H | SDR0_SRST0_USB2D);
248 mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY | SDR0_SRST1_USB2HUTMI |
249 SDR0_SRST1_USB2HPHY | SDR0_SRST1_OPBA2 |
250 SDR0_SRST1_PLB42OPB1 | SDR0_SRST1_OPB2PLB40);
255 /* 1. Set internal PHY configuration */
257 mfsdr(SDR0_PFC1, sdr0_pfc1);
258 mfsdr(SDR0_USB0, usb2d0cr);
259 mfsdr(SDR0_USB2PHY0CR, usb2phy0cr);
260 mfsdr(SDR0_USB2H0CR, usb2h0cr);
262 usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_XOCLK_MASK;
263 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_XOCLK_EXTERNAL; /*0*/
264 usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_WDINT_MASK;
265 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_WDINT_16BIT_30MHZ; /*1*/
266 usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DVBUS_MASK;
267 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DVBUS_PUREN; /*1*/
268 usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_DWNSTR_MASK;
269 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_DWNSTR_HOST; /*1*/
270 usb2phy0cr = usb2phy0cr & ~SDR0_USB2PHY0CR_UTMICN_MASK;
271 usb2phy0cr = usb2phy0cr | SDR0_USB2PHY0CR_UTMICN_HOST; /*1*/
274 * An 8-bit/60MHz interface is the only possible alternative
275 * when connecting the Device to the PHY
277 usb2h0cr = usb2h0cr & ~SDR0_USB2H0CR_WDINT_MASK;
278 usb2h0cr = usb2h0cr | SDR0_USB2H0CR_WDINT_16BIT_30MHZ; /*1*/
280 mtsdr(SDR0_PFC1, sdr0_pfc1);
281 mtsdr(SDR0_USB0, usb2d0cr);
282 mtsdr(SDR0_USB2PHY0CR, usb2phy0cr);
283 mtsdr(SDR0_USB2H0CR, usb2h0cr);
285 /* 2. De-assert internal PHY reset */
286 mfsdr(SDR0_SRST1, sdr0_srst);
287 sdr0_srst = sdr0_srst & ~SDR0_SRST1_USB20PHY;
288 mtsdr(SDR0_SRST1, sdr0_srst);
290 /* 3. Wait for more than 1 ms */
293 /* 4. De-assert USB 2.0 Host main reset */
294 mfsdr(SDR0_SRST0, sdr0_srst);
295 sdr0_srst = sdr0_srst &~ SDR0_SRST0_USB2H;
296 mtsdr(SDR0_SRST0, sdr0_srst);
299 /* 5. De-assert reset of OPB2 cores */
300 mfsdr(SDR0_SRST1, sdr0_srst);
301 sdr0_srst = sdr0_srst &~ SDR0_SRST1_PLB42OPB1;
302 sdr0_srst = sdr0_srst &~ SDR0_SRST1_OPB2PLB40;
303 sdr0_srst = sdr0_srst &~ SDR0_SRST1_OPBA2;
304 mtsdr(SDR0_SRST1, sdr0_srst);
307 /* 6. Set EHCI Configure FLAG */
309 /* 7. Reassert internal PHY reset: */
310 mtsdr(SDR0_SRST1, SDR0_SRST1_USB20PHY);
317 mtsdr(SDR0_SRST1, 0x00000000);
318 mtsdr(SDR0_SRST0, 0x00000000);
320 #ifndef CONFIG_LCD4_LWMON5
321 printf("USB: Host(int phy) Device(ext phy)\n");
325 * Clear PLB4A0_ACR[WRP]
326 * This fix will make the MAL burst disabling patch for the Linux
327 * EMAC driver obsolete.
329 reg = mfdcr(PLB4A0_ACR) & ~PLB4Ax_ACR_WRP_MASK;
330 mtdcr(PLB4A0_ACR, reg);
332 #ifndef CONFIG_LCD4_LWMON5
334 * Init matrix keyboard
345 int i = getenv_f("serial#", buf, sizeof(buf));
347 printf("Board: %s", __stringify(CONFIG_HOSTNAME));
358 void hw_watchdog_reset(void)
361 #if defined(CONFIG_WD_MAX_RATE)
362 unsigned long long ct = get_ticks();
365 * Don't allow watch-dog triggering more frequently than
366 * the predefined value CONFIG_WD_MAX_RATE [ticks].
368 if (ct >= gd->arch.wdt_last) {
369 if ((ct - gd->arch.wdt_last) < CONFIG_WD_MAX_RATE)
372 /* Time base counter had been reset */
373 if (((unsigned long long)(-1) - gd->arch.wdt_last + ct) <
377 gd->arch.wdt_last = get_ticks();
381 * Toggle watchdog output
383 val = gpio_read_out_bit(CONFIG_SYS_GPIO_WATCHDOG) == 0 ? 1 : 0;
384 gpio_write_bit(CONFIG_SYS_GPIO_WATCHDOG, val);
387 int do_eeprom_wp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
390 return cmd_usage(cmdtp);
392 if ((strcmp(argv[1], "on") == 0))
393 gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 1);
394 else if ((strcmp(argv[1], "off") == 0))
395 gpio_write_bit(CONFIG_SYS_GPIO_EEPROM_EXT_WP, 0);
397 return cmd_usage(cmdtp);
403 eepromwp, 2, 0, do_eeprom_wp,
404 "eeprom write protect off/on",
405 "<on|off> - enable (on) or disable (off) I2C EEPROM write protect"
408 #if defined(CONFIG_VIDEO)
409 #include <video_fb.h>
412 extern GraphicDevice mb862xx;
414 static const gdc_regs init_regs [] = {
415 { 0x0100, 0x00000f00 },
416 { 0x0020, 0x801401df },
417 { 0x0024, 0x00000000 },
418 { 0x0028, 0x00000000 },
419 { 0x002c, 0x00000000 },
420 { 0x0110, 0x00000000 },
421 { 0x0114, 0x00000000 },
422 { 0x0118, 0x01df0280 },
423 { 0x0004, 0x031f0000 },
424 { 0x0008, 0x027f027f },
425 { 0x000c, 0x015f028f },
426 { 0x0010, 0x020c0000 },
427 { 0x0014, 0x01df01ea },
428 { 0x0018, 0x00000000 },
429 { 0x001c, 0x01e00280 },
430 { 0x0100, 0x80010f00 },
434 const gdc_regs *board_get_regs(void)
439 /* Returns Lime base address */
440 unsigned int board_video_init(void)
443 * Reset Lime controller
445 gpio_write_bit(CONFIG_SYS_GPIO_LIME_S, 1);
447 gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
449 mb862xx.winSizeX = 640;
450 mb862xx.winSizeY = 480;
451 mb862xx.gdfBytesPP = 2;
452 mb862xx.gdfIndex = GDF_15BIT_555RGB;
454 return CONFIG_SYS_LIME_BASE_0;
457 #define DEFAULT_BRIGHTNESS 0x64
459 static void board_backlight_brightness(int brightness)
461 if (brightness > 0) {
462 /* pwm duty, lamp on */
463 out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000024), brightness);
464 out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000020), 0x701);
467 out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000024), 0x00);
468 out_be32((void *)(CONFIG_SYS_FPGA_BASE_0 + 0x00000020), 0x00);
472 void board_backlight_switch(int flag)
478 param = getenv("brightness");
479 rc = param ? simple_strtol(param, NULL, 10) : -1;
481 rc = DEFAULT_BRIGHTNESS;
485 board_backlight_brightness(rc);
488 #if defined(CONFIG_CONSOLE_EXTRA_INFO)
490 * Return text to be printed besides the logo.
492 void video_get_info_str(int line_number, char *info)
494 if (line_number == 1)
495 strcpy(info, " Board: Lwmon5 (Liebherr Elektronik GmbH)");
499 #endif /* CONFIG_CONSOLE_EXTRA_INFO */
500 #endif /* CONFIG_VIDEO */
502 void board_reset(void)
504 gpio_write_bit(CONFIG_SYS_GPIO_BOARD_RESET, 1);
507 #ifdef CONFIG_SPL_OS_BOOT
509 * lwmon5 specific implementation of spl_start_uboot()
512 * 0 if booting into OS is selected (default)
513 * 1 if booting into U-Boot is selected
515 int spl_start_uboot(void)
520 getenv_f("boot_os", s, sizeof(s));
521 if ((s != NULL) && (strcmp(s, "yes") == 0))
528 * This function is called from the SPL U-Boot version for
529 * early init stuff, that needs to be done for OS (e.g. Linux)
530 * booting. Doing it later in the real U-Boot would not work
531 * in case that the SPL U-Boot boots Linux directly.
533 void spl_board_init(void)
535 const gdc_regs *regs = board_get_regs();
538 * Setup PFC registers, mainly for ethernet support
541 board_early_init_f();
546 mtsdr(SDR0_SRST1, 0x00000000);
547 mtsdr(SDR0_SRST0, 0x00000000);
550 * Reset Lime controller
552 gpio_write_bit(CONFIG_SYS_GPIO_LIME_S, 1);
554 gpio_write_bit(CONFIG_SYS_GPIO_LIME_RST, 1);
556 out_be32((void *)CONFIG_SYS_LIME_SDRAM_CLOCK, CONFIG_SYS_MB862xx_CCF);
558 out_be32((void *)CONFIG_SYS_LIME_MMR, CONFIG_SYS_MB862xx_MMR);
560 while (regs->index) {
561 out_be32((void *)(CONFIG_SYS_LIME_BASE_0 + GC_DISP_BASE) +
562 regs->index, regs->value);
566 board_backlight_brightness(DEFAULT_BRIGHTNESS);