1 /*
2  * Copyright (C) 2012 - 2013 Atmel Corporation
3  * Bo Shen <voice.shen@atmel.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <mmc.h>
10 #include <asm/io.h>
11 #include <asm/arch/sama5d3_smc.h>
12 #include <asm/arch/at91_common.h>
13 #include <asm/arch/at91_rstc.h>
14 #include <asm/arch/gpio.h>
15 #include <asm/arch/clk.h>
16 #include <lcd.h>
17 #include <linux/ctype.h>
18 #include <atmel_hlcdc.h>
19 #include <atmel_mci.h>
20 #include <phy.h>
21 #include <micrel.h>
22 #include <net.h>
23 #include <netdev.h>
24 #include <spl.h>
25 #include <asm/arch/atmel_mpddrc.h>
26 #include <asm/arch/at91_wdt.h>
27 
28 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
29 #include <asm/arch/atmel_usba_udc.h>
30 #endif
31 
32 DECLARE_GLOBAL_DATA_PTR;
33 
34 /* ------------------------------------------------------------------------- */
35 /*
36  * Miscelaneous platform dependent initialisations
37  */
38 
39 #ifdef CONFIG_NAND_ATMEL
40 void sama5d3xek_nand_hw_init(void)
41 {
42 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
43 
44 	at91_periph_clk_enable(ATMEL_ID_SMC);
45 
46 	/* Configure SMC CS3 for NAND/SmartMedia */
47 	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
48 	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
49 	       &smc->cs[3].setup);
50 	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
51 	       AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
52 	       &smc->cs[3].pulse);
53 	writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
54 	       &smc->cs[3].cycle);
55 	writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
56 	       AT91_SMC_TIMINGS_TAR(3)  | AT91_SMC_TIMINGS_TRR(4)   |
57 	       AT91_SMC_TIMINGS_TWB(5)  | AT91_SMC_TIMINGS_RBNSEL(3)|
58 	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
59 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
60 	       AT91_SMC_MODE_EXNW_DISABLE |
61 #ifdef CONFIG_SYS_NAND_DBW_16
62 	       AT91_SMC_MODE_DBW_16 |
63 #else /* CONFIG_SYS_NAND_DBW_8 */
64 	       AT91_SMC_MODE_DBW_8 |
65 #endif
66 	       AT91_SMC_MODE_TDF_CYCLE(3),
67 	       &smc->cs[3].mode);
68 }
69 #endif
70 
71 #ifndef CONFIG_SYS_NO_FLASH
72 static void sama5d3xek_nor_hw_init(void)
73 {
74 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
75 
76 	at91_periph_clk_enable(ATMEL_ID_SMC);
77 
78 	/* Configure SMC CS0 for NOR flash */
79 	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
80 	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
81 	       &smc->cs[0].setup);
82 	writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(11) |
83 	       AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(11),
84 	       &smc->cs[0].pulse);
85 	writel(AT91_SMC_CYCLE_NWE(11) | AT91_SMC_CYCLE_NRD(14),
86 	       &smc->cs[0].cycle);
87 	writel(AT91_SMC_TIMINGS_TCLR(0) | AT91_SMC_TIMINGS_TADL(0)  |
88 	       AT91_SMC_TIMINGS_TAR(0)  | AT91_SMC_TIMINGS_TRR(0)   |
89 	       AT91_SMC_TIMINGS_TWB(0)  | AT91_SMC_TIMINGS_RBNSEL(0)|
90 	       AT91_SMC_TIMINGS_NFSEL(0), &smc->cs[0].timings);
91 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
92 	       AT91_SMC_MODE_EXNW_DISABLE |
93 	       AT91_SMC_MODE_DBW_16 |
94 	       AT91_SMC_MODE_TDF_CYCLE(1),
95 	       &smc->cs[0].mode);
96 
97 	/* Address pin (A1 ~ A23) configuration */
98 	at91_set_a_periph(AT91_PIO_PORTE, 1, 0);
99 	at91_set_a_periph(AT91_PIO_PORTE, 2, 0);
100 	at91_set_a_periph(AT91_PIO_PORTE, 3, 0);
101 	at91_set_a_periph(AT91_PIO_PORTE, 4, 0);
102 	at91_set_a_periph(AT91_PIO_PORTE, 5, 0);
103 	at91_set_a_periph(AT91_PIO_PORTE, 6, 0);
104 	at91_set_a_periph(AT91_PIO_PORTE, 7, 0);
105 	at91_set_a_periph(AT91_PIO_PORTE, 8, 0);
106 	at91_set_a_periph(AT91_PIO_PORTE, 9, 0);
107 	at91_set_a_periph(AT91_PIO_PORTE, 10, 0);
108 	at91_set_a_periph(AT91_PIO_PORTE, 11, 0);
109 	at91_set_a_periph(AT91_PIO_PORTE, 12, 0);
110 	at91_set_a_periph(AT91_PIO_PORTE, 13, 0);
111 	at91_set_a_periph(AT91_PIO_PORTE, 14, 0);
112 	at91_set_a_periph(AT91_PIO_PORTE, 15, 0);
113 	at91_set_a_periph(AT91_PIO_PORTE, 16, 0);
114 	at91_set_a_periph(AT91_PIO_PORTE, 17, 0);
115 	at91_set_a_periph(AT91_PIO_PORTE, 18, 0);
116 	at91_set_a_periph(AT91_PIO_PORTE, 19, 0);
117 	at91_set_a_periph(AT91_PIO_PORTE, 20, 0);
118 	at91_set_a_periph(AT91_PIO_PORTE, 21, 0);
119 	at91_set_a_periph(AT91_PIO_PORTE, 22, 0);
120 	at91_set_a_periph(AT91_PIO_PORTE, 23, 0);
121 	/* CS0 pin configuration */
122 	at91_set_a_periph(AT91_PIO_PORTE, 26, 0);
123 }
124 #endif
125 
126 #ifdef CONFIG_CMD_USB
127 static void sama5d3xek_usb_hw_init(void)
128 {
129 	at91_set_pio_output(AT91_PIO_PORTD, 25, 0);
130 	at91_set_pio_output(AT91_PIO_PORTD, 26, 0);
131 	at91_set_pio_output(AT91_PIO_PORTD, 27, 0);
132 }
133 #endif
134 
135 #ifdef CONFIG_GENERIC_ATMEL_MCI
136 static void sama5d3xek_mci_hw_init(void)
137 {
138 	at91_mci_hw_init();
139 
140 	at91_set_pio_output(AT91_PIO_PORTB, 10, 0);	/* MCI0 Power */
141 }
142 #endif
143 
144 #ifdef CONFIG_LCD
145 vidinfo_t panel_info = {
146 	.vl_col = 800,
147 	.vl_row = 480,
148 	.vl_clk = 24000000,
149 	.vl_bpix = LCD_BPP,
150 	.vl_tft = 1,
151 	.vl_hsync_len = 128,
152 	.vl_left_margin = 64,
153 	.vl_right_margin = 64,
154 	.vl_vsync_len = 2,
155 	.vl_upper_margin = 22,
156 	.vl_lower_margin = 21,
157 	.mmio = ATMEL_BASE_LCDC,
158 };
159 
160 void lcd_enable(void)
161 {
162 }
163 
164 void lcd_disable(void)
165 {
166 }
167 
168 static void sama5d3xek_lcd_hw_init(void)
169 {
170 	gd->fb_base = CONFIG_SAMA5D3_LCD_BASE;
171 
172 	/* The higher 8 bit of LCD is board related */
173 	at91_set_c_periph(AT91_PIO_PORTC, 14, 0);	/* LCDD16 */
174 	at91_set_c_periph(AT91_PIO_PORTC, 13, 0);	/* LCDD17 */
175 	at91_set_c_periph(AT91_PIO_PORTC, 12, 0);	/* LCDD18 */
176 	at91_set_c_periph(AT91_PIO_PORTC, 11, 0);	/* LCDD19 */
177 	at91_set_c_periph(AT91_PIO_PORTC, 10, 0);	/* LCDD20 */
178 	at91_set_c_periph(AT91_PIO_PORTC, 15, 0);	/* LCDD21 */
179 	at91_set_c_periph(AT91_PIO_PORTE, 27, 0);	/* LCDD22 */
180 	at91_set_c_periph(AT91_PIO_PORTE, 28, 0);	/* LCDD23 */
181 
182 	/* Configure lower 16 bit of LCD and enable clock */
183 	at91_lcd_hw_init();
184 }
185 
186 #ifdef CONFIG_LCD_INFO
187 #include <nand.h>
188 #include <version.h>
189 
190 void lcd_show_board_info(void)
191 {
192 	ulong dram_size;
193 	uint64_t nand_size;
194 	int i;
195 	char temp[32];
196 
197 	lcd_printf("%s\n", U_BOOT_VERSION);
198 	lcd_printf("(C) 2013 ATMEL Corp\n");
199 	lcd_printf("at91@atmel.com\n");
200 	lcd_printf("%s CPU at %s MHz\n", get_cpu_name(),
201 		   strmhz(temp, get_cpu_clk_rate()));
202 
203 	dram_size = 0;
204 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
205 		dram_size += gd->bd->bi_dram[i].size;
206 
207 	nand_size = 0;
208 #ifdef CONFIG_NAND_ATMEL
209 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
210 		nand_size += nand_info[i].size;
211 #endif
212 	lcd_printf("%ld MB SDRAM, %lld MB NAND\n",
213 		   dram_size >> 20, nand_size >> 20);
214 }
215 #endif /* CONFIG_LCD_INFO */
216 #endif /* CONFIG_LCD */
217 
218 int board_early_init_f(void)
219 {
220 	at91_periph_clk_enable(ATMEL_ID_PIOA);
221 	at91_periph_clk_enable(ATMEL_ID_PIOB);
222 	at91_periph_clk_enable(ATMEL_ID_PIOC);
223 	at91_periph_clk_enable(ATMEL_ID_PIOD);
224 	at91_periph_clk_enable(ATMEL_ID_PIOE);
225 
226 	at91_seriald_hw_init();
227 
228 	return 0;
229 }
230 
231 int board_init(void)
232 {
233 	/* adress of boot parameters */
234 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
235 
236 #ifdef CONFIG_NAND_ATMEL
237 	sama5d3xek_nand_hw_init();
238 #endif
239 #ifndef CONFIG_SYS_NO_FLASH
240 	sama5d3xek_nor_hw_init();
241 #endif
242 #ifdef CONFIG_CMD_USB
243 	sama5d3xek_usb_hw_init();
244 #endif
245 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
246 	at91_udp_hw_init();
247 #endif
248 #ifdef CONFIG_GENERIC_ATMEL_MCI
249 	sama5d3xek_mci_hw_init();
250 #endif
251 #ifdef CONFIG_ATMEL_SPI
252 	at91_spi0_hw_init(1 << 0);
253 #endif
254 #ifdef CONFIG_MACB
255 	if (has_emac())
256 		at91_macb_hw_init();
257 	if (has_gmac())
258 		at91_gmac_hw_init();
259 #endif
260 #ifdef CONFIG_LCD
261 	if (has_lcdc())
262 		sama5d3xek_lcd_hw_init();
263 #endif
264 	return 0;
265 }
266 
267 int dram_init(void)
268 {
269 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
270 				    CONFIG_SYS_SDRAM_SIZE);
271 	return 0;
272 }
273 
274 int board_phy_config(struct phy_device *phydev)
275 {
276 	/* board specific timings for GMAC */
277 	if (has_gmac()) {
278 		/* rx data delay */
279 		ksz9021_phy_extended_write(phydev,
280 					   MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW,
281 					   0x2222);
282 		/* tx data delay */
283 		ksz9021_phy_extended_write(phydev,
284 					   MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW,
285 					   0x2222);
286 		/* rx/tx clock delay */
287 		ksz9021_phy_extended_write(phydev,
288 					   MII_KSZ9021_EXT_RGMII_CLOCK_SKEW,
289 					   0xf2f4);
290 	}
291 
292 	/* always run the PHY's config routine */
293 	if (phydev->drv->config)
294 		return phydev->drv->config(phydev);
295 
296 	return 0;
297 }
298 
299 int board_eth_init(bd_t *bis)
300 {
301 	int rc = 0;
302 
303 #ifdef CONFIG_MACB
304 	if (has_emac())
305 		rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
306 	if (has_gmac())
307 		rc = macb_eth_initialize(0, (void *)ATMEL_BASE_GMAC, 0x00);
308 #endif
309 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
310 	usba_udc_probe(&pdata);
311 #ifdef CONFIG_USB_ETH_RNDIS
312 	usb_eth_initialize(bis);
313 #endif
314 #endif
315 
316 	return rc;
317 }
318 
319 #ifdef CONFIG_GENERIC_ATMEL_MCI
320 int board_mmc_init(bd_t *bis)
321 {
322 	int rc = 0;
323 
324 	rc = atmel_mci_init((void *)ATMEL_BASE_MCI0);
325 
326 	return rc;
327 }
328 #endif
329 
330 /* SPI chip select control */
331 #ifdef CONFIG_ATMEL_SPI
332 #include <spi.h>
333 
334 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
335 {
336 	return bus == 0 && cs < 4;
337 }
338 
339 void spi_cs_activate(struct spi_slave *slave)
340 {
341 	switch (slave->cs) {
342 	case 0:
343 		at91_set_pio_output(AT91_PIO_PORTD, 13, 0);
344 	case 1:
345 		at91_set_pio_output(AT91_PIO_PORTD, 14, 0);
346 	case 2:
347 		at91_set_pio_output(AT91_PIO_PORTD, 15, 0);
348 	case 3:
349 		at91_set_pio_output(AT91_PIO_PORTD, 16, 0);
350 	default:
351 		break;
352 	}
353 }
354 
355 void spi_cs_deactivate(struct spi_slave *slave)
356 {
357 	switch (slave->cs) {
358 	case 0:
359 		at91_set_pio_output(AT91_PIO_PORTD, 13, 1);
360 	case 1:
361 		at91_set_pio_output(AT91_PIO_PORTD, 14, 1);
362 	case 2:
363 		at91_set_pio_output(AT91_PIO_PORTD, 15, 1);
364 	case 3:
365 		at91_set_pio_output(AT91_PIO_PORTD, 16, 1);
366 	default:
367 		break;
368 	}
369 }
370 #endif /* CONFIG_ATMEL_SPI */
371 
372 #ifdef CONFIG_BOARD_LATE_INIT
373 int board_late_init(void)
374 {
375 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
376 	const int MAX_STR_LEN = 32;
377 	char name[MAX_STR_LEN], *p;
378 	int i;
379 
380 	strncpy(name, get_cpu_name(), MAX_STR_LEN);
381 	for (i = 0, p = name; (*p) && (i < MAX_STR_LEN); p++, i++)
382 		*p = tolower(*p);
383 
384 	strcat(name, "ek.dtb");
385 	setenv("dtb_name", name);
386 #endif
387 	return 0;
388 }
389 #endif
390 
391 /* SPL */
392 #ifdef CONFIG_SPL_BUILD
393 void spl_board_init(void)
394 {
395 #ifdef CONFIG_SYS_USE_MMC
396 	sama5d3xek_mci_hw_init();
397 #elif CONFIG_SYS_USE_NANDFLASH
398 	sama5d3xek_nand_hw_init();
399 #elif CONFIG_SYS_USE_SERIALFLASH
400 	at91_spi0_hw_init(1 << 0);
401 #endif
402 }
403 
404 static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
405 {
406 	ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
407 
408 	ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
409 		    ATMEL_MPDDRC_CR_NR_ROW_14 |
410 		    ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
411 		    ATMEL_MPDDRC_CR_ENRDM_ON |
412 		    ATMEL_MPDDRC_CR_NB_8BANKS |
413 		    ATMEL_MPDDRC_CR_NDQS_DISABLED |
414 		    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
415 		    ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
416 	/*
417 	 * As the DDR2-SDRAm device requires a refresh time is 7.8125us
418 	 * when DDR run at 133MHz, so it needs (7.8125us * 133MHz / 10^9) clocks
419 	 */
420 	ddr2->rtr = 0x411;
421 
422 	ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
423 		      2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
424 		      2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
425 		      8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
426 		      2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
427 		      2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
428 		      2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
429 		      2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
430 
431 	ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
432 		      200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
433 		      28 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
434 		      26 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
435 
436 	ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
437 		      2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
438 		      2 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
439 		      7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
440 		      8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
441 }
442 
443 void mem_init(void)
444 {
445 	struct atmel_mpddrc_config ddr2;
446 
447 	ddr2_conf(&ddr2);
448 
449 	/* Enable MPDDR clock */
450 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
451 	at91_system_clk_enable(AT91_PMC_DDR);
452 
453 	/* DDRAM2 Controller initialize */
454 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
455 }
456 
457 void at91_pmc_init(void)
458 {
459 	u32 tmp;
460 
461 	tmp = AT91_PMC_PLLAR_29 |
462 	      AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
463 	      AT91_PMC_PLLXR_MUL(43) |
464 	      AT91_PMC_PLLXR_DIV(1);
465 	at91_plla_init(tmp);
466 
467 	at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
468 
469 	tmp = AT91_PMC_MCKR_MDIV_4 |
470 	      AT91_PMC_MCKR_CSS_PLLA;
471 	at91_mck_init(tmp);
472 }
473 #endif
474