2 * (C) Copyright 2005-2007
4 * Kyungmin Park <kyungmin.park@samsung.com>
6 * Derived from omap2420
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
28 #include <asm/arch/omap2420.h>
30 #include <asm/arch/bits.h>
31 #include <asm/arch/mux.h>
32 #include <asm/arch/sys_proto.h>
33 #include <asm/arch/sys_info.h>
34 #include <asm/arch/mem.h>
35 #include <asm/mach-types.h>
37 void wait_for_command_complete(unsigned int wd_base);
39 DECLARE_GLOBAL_DATA_PTR;
41 #define write_config_reg(reg, value) \
46 #define mask_config_reg(reg, mask) \
48 char value = readb(reg) & ~(mask); \
52 /*******************************************************
54 * Description: spinning delay to use before udelay works
55 ******************************************************/
56 static inline void delay(unsigned long loops)
58 __asm__("1:\n" "subs %0, %1, #1\n"
59 "bne 1b":"=r" (loops):"0"(loops));
62 /*****************************************
64 * Description: Early hardware init.
65 *****************************************/
68 gpmc_init(); /* in SRAM or SDRM, finish GPMC */
70 gd->bd->bi_arch_number = 919;
71 /* adress of boot parameters */
72 gd->bd->bi_boot_params = (OMAP2420_SDRC_CS0 + 0x100);
77 /**********************************************************
79 * Description: Does early system init of muxing and clocks.
80 * - Called path is with sram stack.
81 **********************************************************/
92 /*******************************************************
93 * Routine: misc_init_r
94 * Description: Init ethernet (done here so udelay works)
95 ********************************************************/
101 /****************************************
102 * Routine: watchdog_init
103 * Description: Shut down watch dogs
104 *****************************************/
105 void watchdog_init(void)
107 /* There are 4 watch dogs. 1 secure, and 3 general purpose.
108 * The ROM takes care of the secure one. Of the 3 GP ones,
109 * 1 can reset us directly, the other 2 only generate MPU interrupts.
111 __raw_writel(WD_UNLOCK1, WD2_BASE + WSPR);
112 wait_for_command_complete(WD2_BASE);
113 __raw_writel(WD_UNLOCK2, WD2_BASE + WSPR);
115 #define MPU_WD_CLOCKED 1
117 /* value 0x10 stick on aptix, BIT4 polarity seems oppsite */
118 __raw_writel(WD_UNLOCK1, WD3_BASE + WSPR);
119 wait_for_command_complete(WD3_BASE);
120 __raw_writel(WD_UNLOCK2, WD3_BASE + WSPR);
122 __raw_writel(WD_UNLOCK1, WD4_BASE + WSPR);
123 wait_for_command_complete(WD4_BASE);
124 __raw_writel(WD_UNLOCK2, WD4_BASE + WSPR);
128 /******************************************************
129 * Routine: wait_for_command_complete
130 * Description: Wait for posting to finish on watchdog
131 ******************************************************/
132 void wait_for_command_complete(unsigned int wd_base)
136 pending = __raw_readl(wd_base + WWPS);
140 /*******************************************************************
141 * Routine:board_eth_init
142 * Description: take the Ethernet controller out of reset and wait
143 * for the EEPROM load to complete.
144 ******************************************************************/
145 int board_eth_init(bd_t *bis)
148 #ifdef CONFIG_LAN91C96
151 __raw_writeb(0x03, OMAP2420_CTRL_BASE + 0x0f2); /*protect->gpio74 */
153 __raw_writew(0x0, LAN_RESET_REGISTER);
155 __raw_writew(0x1, LAN_RESET_REGISTER);
158 goto eth_reset_err_out;
160 } while (__raw_readw(LAN_RESET_REGISTER) != 0x1);
165 __raw_writew(0x0, LAN_RESET_REGISTER);
168 goto eth_reset_err_out;
170 } while (__raw_readw(LAN_RESET_REGISTER) != 0x0000);
173 mask_config_reg(ETH_CONTROL_REG, 0x01);
175 rc = lan91c96_initialize(0, CONFIG_LAN91C96_BASE);
181 /**********************************************
183 * Description: sets uboots idea of sdram size
184 **********************************************/
187 unsigned int size0 = 0, size1 = 0;
188 u32 mtype, btype, rev = 0, cpu = 0;
191 btype = get_board_type();
192 mtype = get_mem_type();
194 cpu = get_cpu_type();
196 display_board_info(btype);
198 if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) {
199 /* init other chip select */
200 do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY);
203 size0 = get_sdr_cs_size(SDRC_CS0_OSET);
204 size1 = get_sdr_cs_size(SDRC_CS1_OSET);
206 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
207 gd->bd->bi_dram[0].size = size0;
208 #if CONFIG_NR_DRAM_BANKS > 1
209 gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + size0;
210 gd->bd->bi_dram[1].size = size1;
216 /**********************************************************
217 * Routine: set_muxconf_regs
218 * Description: Setting up the configuration Mux registers
219 * specific to the hardware
220 *********************************************************/
221 void set_muxconf_regs(void)
225 muxSetupUsb0(); /* USB Device */
226 muxSetupUsbHost(); /* USB Host */
230 muxSetupTouchScreen();
233 /*****************************************************************
234 * Routine: peripheral_enable
235 * Description: Enable the clks & power for perifs (GPT2, UART1,...)
236 ******************************************************************/
237 void peripheral_enable(void)
239 unsigned int v, if_clks = 0, func_clks = 0;
241 /* Enable GP2 timer. */
242 if_clks |= BIT4 | BIT3;
243 func_clks |= BIT4 | BIT3;
244 /* Sys_clk input OMAP2420_GPT2 */
245 v = __raw_readl(CM_CLKSEL2_CORE) | 0x4 | 0x2;
246 __raw_writel(v, CM_CLKSEL2_CORE);
247 __raw_writel(0x1, CM_CLKSEL_WKUP);
249 #ifdef CONFIG_SYS_NS16550
250 /* Enable UART1 clock */
254 /* Interface clocks on */
255 v = __raw_readl(CM_ICLKEN1_CORE) | if_clks;
256 __raw_writel(v, CM_ICLKEN1_CORE);
257 /* Functional Clocks on */
258 v = __raw_readl(CM_FCLKEN1_CORE) | func_clks;
259 __raw_writel(v, CM_FCLKEN1_CORE);
262 #ifndef KERNEL_UPDATED
264 #define V1 0xffffffff
265 #define V2 0x00000007
267 __raw_writel(V1, CM_FCLKEN1_CORE);
268 __raw_writel(V2, CM_FCLKEN2_CORE);
269 __raw_writel(V1, CM_ICLKEN1_CORE);
270 __raw_writel(V1, CM_ICLKEN2_CORE);
275 /****************************************
276 * Routine: muxSetupUsb0 (ostboot)
277 * Description: Setup usb muxing
278 *****************************************/
279 void muxSetupUsb0(void)
281 mask_config_reg(CONTROL_PADCONF_USB0_PUEN, 0x1f);
282 mask_config_reg(CONTROL_PADCONF_USB0_VP, 0x1f);
283 mask_config_reg(CONTROL_PADCONF_USB0_VM, 0x1f);
284 mask_config_reg(CONTROL_PADCONF_USB0_RCV, 0x1f);
285 mask_config_reg(CONTROL_PADCONF_USB0_TXEN, 0x1f);
286 mask_config_reg(CONTROL_PADCONF_USB0_SE0, 0x1f);
287 mask_config_reg(CONTROL_PADCONF_USB0_DAT, 0x1f);
290 /****************************************
291 * Routine: muxSetupUSBHost (ostboot)
292 * Description: Setup USB Host muxing
293 *****************************************/
294 void muxSetupUsbHost(void)
297 write_config_reg(CONTROL_PADCONF_USB1_RCV, 1);
299 write_config_reg(CONTROL_PADCONF_USB1_TXEN, 1);
301 write_config_reg(CONTROL_PADCONF_GPIO69, 3);
303 write_config_reg(CONTROL_PADCONF_GPIO70, 3);
305 write_config_reg(CONTROL_PADCONF_GPIO102, 3);
307 write_config_reg(CONTROL_PADCONF_GPIO103, 3);
309 write_config_reg(CONTROL_PADCONF_GPIO104, 3);
311 write_config_reg(CONTROL_PADCONF_GPIO105, 3);
314 /****************************************
315 * Routine: muxSetupUART1 (ostboot)
316 * Description: Set up uart1 muxing
317 *****************************************/
318 void muxSetupUART1(void)
320 /* UART1_CTS pin configuration, PIN = D21, Mode = 0, PUPD=Disabled */
321 write_config_reg(CONTROL_PADCONF_UART1_CTS, 0);
322 /* UART1_RTS pin configuration, PIN = H21, Mode = 0, PUPD=Disabled */
323 write_config_reg(CONTROL_PADCONF_UART1_RTS, 0);
324 /* UART1_TX pin configuration, PIN = L20, Mode = 0, PUPD=Disabled */
325 write_config_reg(CONTROL_PADCONF_UART1_TX, 0);
326 /* UART1_RX pin configuration, PIN = T21, Mode = 0, PUPD=Disabled */
327 write_config_reg(CONTROL_PADCONF_UART1_RX, 0);
330 /****************************************
331 * Routine: muxSetupLCD (ostboot)
332 * Description: Setup lcd muxing
333 *****************************************/
334 void muxSetupLCD(void)
336 /* LCD_D0 pin configuration, PIN = Y7, Mode = 0, PUPD=Disabled */
337 write_config_reg(CONTROL_PADCONF_DSS_D0, 0);
338 /* LCD_D1 pin configuration, PIN = P10 , Mode = 0, PUPD=Disabled */
339 write_config_reg(CONTROL_PADCONF_DSS_D1, 0);
340 /* LCD_D2 pin configuration, PIN = V8, Mode = 0, PUPD=Disabled */
341 write_config_reg(CONTROL_PADCONF_DSS_D2, 0);
342 /* LCD_D3 pin configuration, PIN = Y8, Mode = 0, PUPD=Disabled */
343 write_config_reg(CONTROL_PADCONF_DSS_D3, 0);
344 /* LCD_D4 pin configuration, PIN = W8, Mode = 0, PUPD=Disabled */
345 write_config_reg(CONTROL_PADCONF_DSS_D4, 0);
346 /* LCD_D5 pin configuration, PIN = R10, Mode = 0, PUPD=Disabled */
347 write_config_reg(CONTROL_PADCONF_DSS_D5, 0);
348 /* LCD_D6 pin configuration, PIN = Y9, Mode = 0, PUPD=Disabled */
349 write_config_reg(CONTROL_PADCONF_DSS_D6, 0);
350 /* LCD_D7 pin configuration, PIN = V9, Mode = 0, PUPD=Disabled */
351 write_config_reg(CONTROL_PADCONF_DSS_D7, 0);
352 /* LCD_D8 pin configuration, PIN = W9, Mode = 0, PUPD=Disabled */
353 write_config_reg(CONTROL_PADCONF_DSS_D8, 0);
354 /* LCD_D9 pin configuration, PIN = P11, Mode = 0, PUPD=Disabled */
355 write_config_reg(CONTROL_PADCONF_DSS_D9, 0);
356 /* LCD_D10 pin configuration, PIN = V10, Mode = 0, PUPD=Disabled */
357 write_config_reg(CONTROL_PADCONF_DSS_D10, 0);
358 /* LCD_D11 pin configuration, PIN = Y10, Mode = 0, PUPD=Disabled */
359 write_config_reg(CONTROL_PADCONF_DSS_D11, 0);
360 /* LCD_D12 pin configuration, PIN = W10, Mode = 0, PUPD=Disabled */
361 write_config_reg(CONTROL_PADCONF_DSS_D12, 0);
362 /* LCD_D13 pin configuration, PIN = R11, Mode = 0, PUPD=Disabled */
363 write_config_reg(CONTROL_PADCONF_DSS_D13, 0);
364 /* LCD_D14 pin configuration, PIN = V11, Mode = 0, PUPD=Disabled */
365 write_config_reg(CONTROL_PADCONF_DSS_D14, 0);
366 /* LCD_D15 pin configuration, PIN = W11, Mode = 0, PUPD=Disabled */
367 write_config_reg(CONTROL_PADCONF_DSS_D15, 0);
368 /* LCD_D16 pin configuration, PIN = P12, Mode = 0, PUPD=Disabled */
369 write_config_reg(CONTROL_PADCONF_DSS_D16, 0);
370 /* LCD_D17 pin configuration, PIN = R12, Mode = 0, PUPD=Disabled */
371 write_config_reg(CONTROL_PADCONF_DSS_D17, 0);
372 /* LCD_PCLK pin configuration, PIN = W6, Mode = 0, PUPD=Disabled */
373 write_config_reg(CONTROL_PADCONF_DSS_PCLK, 0);
374 /* LCD_VSYNC pin configuration, PIN = V7, Mode = 0, PUPD=Disabled */
375 write_config_reg(CONTROL_PADCONF_DSS_VSYNC, 0);
376 /* LCD_HSYNC pin configuration, PIN = Y6, Mode = 0, PUPD=Disabled */
377 write_config_reg(CONTROL_PADCONF_DSS_HSYNC, 0);
378 /* LCD_ACBIAS pin configuration, PIN = W7, Mode = 0, PUPD=Disabled */
379 write_config_reg(CONTROL_PADCONF_DSS_ACBIAS, 0);
382 /****************************************
383 * Routine: muxSetupMMCSD (ostboot)
384 * Description: set up MMC muxing
385 *****************************************/
386 void muxSetupMMCSD(void)
388 /* SDMMC_CLKI pin configuration, PIN = H15, Mode = 0, PUPD=Disabled */
389 write_config_reg(CONTROL_PADCONF_MMC_CLKI, 0);
390 /* SDMMC_CLKO pin configuration, PIN = G19, Mode = 0, PUPD=Disabled */
391 write_config_reg(CONTROL_PADCONF_MMC_CLKO, 0);
392 /* SDMMC_CMD pin configuration, PIN = H18, Mode = 0, PUPD=Disabled */
393 write_config_reg(CONTROL_PADCONF_MMC_CMD, 0);
394 /* SDMMC_DAT0 pin configuration, PIN = F20, Mode = 0, PUPD=Disabled */
395 write_config_reg(CONTROL_PADCONF_MMC_DAT0, 0);
396 /* SDMMC_DAT1 pin configuration, PIN = H14, Mode = 0, PUPD=Disabled */
397 write_config_reg(CONTROL_PADCONF_MMC_DAT1, 0);
398 /* SDMMC_DAT2 pin configuration, PIN = E19, Mode = 0, PUPD=Disabled */
399 write_config_reg(CONTROL_PADCONF_MMC_DAT2, 0);
400 /* SDMMC_DAT3 pin configuration, PIN = D19, Mode = 0, PUPD=Disabled */
401 write_config_reg(CONTROL_PADCONF_MMC_DAT3, 0);
402 /* SDMMC_DDIR0 pin configuration, PIN = F19, Mode = 0, PUPD=Disabled */
403 write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR0, 0);
404 /* SDMMC_DDIR1 pin configuration, PIN = E20, Mode = 0, PUPD=Disabled */
405 write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR1, 0);
406 /* SDMMC_DDIR2 pin configuration, PIN = F18, Mode = 0, PUPD=Disabled */
407 write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR2, 0);
408 /* SDMMC_DDIR3 pin configuration, PIN = E18, Mode = 0, PUPD=Disabled */
409 write_config_reg(CONTROL_PADCONF_MMC_DAT_DIR3, 0);
410 /* SDMMC_CDIR pin configuration, PIN = G18, Mode = 0, PUPD=Disabled */
411 write_config_reg(CONTROL_PADCONF_MMC_CMD_DIR, 0);
414 /******************************************
415 * Routine: muxSetupTouchScreen (ostboot)
416 * Description: Set up touch screen muxing
417 *******************************************/
418 void muxSetupTouchScreen(void)
420 /* SPI1_CLK pin configuration, PIN = U18, Mode = 0, PUPD=Disabled */
421 write_config_reg(CONTROL_PADCONF_SPI1_CLK, 0);
422 /* SPI1_MOSI pin configuration, PIN = V20, Mode = 0, PUPD=Disabled */
423 write_config_reg(CONTROL_PADCONF_SPI1_SIMO, 0);
424 /* SPI1_MISO pin configuration, PIN = T18, Mode = 0, PUPD=Disabled */
425 write_config_reg(CONTROL_PADCONF_SPI1_SOMI, 0);
426 /* SPI1_nCS0 pin configuration, PIN = U19, Mode = 0, PUPD=Disabled */
427 write_config_reg(CONTROL_PADCONF_SPI1_NCS0, 0);
428 #define CONTROL_PADCONF_GPIO85 CONTROL_PADCONF_SPI1_NCS1
429 /* PEN_IRQ pin configuration, PIN = N15, Mode = 3, PUPD=Disabled */
430 write_config_reg(CONTROL_PADCONF_GPIO85, 3);
433 /***************************************************************
434 * Routine: muxSetupGPMC (ostboot)
435 * Description: Configures balls which cam up in protected mode
436 ***************************************************************/
437 void muxSetupGPMC(void)
439 /* gpmc_io_dir, MCR */
440 volatile unsigned int *MCR = (unsigned int *) 0x4800008C;
444 /* signal - Gpmc_clk; pin - J4; offset - 0x0088; mode 0; Byte-3 */
445 write_config_reg(CONTROL_PADCONF_GPMC_D2_BYTE3, 0);
446 /* MPDB(Multi Port Debug Port) CS1 */
447 /* signal - gpmc_ncs1; pin - N8; offset - 0x008D; mode 0; Byte-1 */
448 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE1, 0);
449 /* signal - Gpmc_ncs2; pin - E2; offset - 0x008E; mode 0; Byte-2 */
450 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE2, 0);
451 /* signal - Gpmc_ncs3; pin - N2; offset - 0x008F; mode 0; Byte-3 */
452 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE3, 0);
453 /* signal - Gpmc_ncs4; pin - ??; offset - 0x0090; mode 0; Byte-4 */
454 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE4, 0);
455 /* signal - Gpmc_ncs5; pin - ??; offset - 0x0091; mode 0; Byte-5 */
456 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE5, 0);
457 /* signal - Gpmc_ncs6; pin - ??; offset - 0x0092; mode 0; Byte-6 */
458 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE6, 0);
459 /* signal - Gpmc_ncs7; pin - ??; offset - 0x0093; mode 0; Byte-7 */
460 write_config_reg(CONTROL_PADCONF_GPMC_NCS0_BYTE7, 0);
463 /****************************************************************
464 * Routine: muxSetupSDRC (ostboot)
465 * Description: Configures balls which come up in protected mode
466 ****************************************************************/
467 void muxSetupSDRC(void)
469 /* It's set by IPL */