1 /*
2  * Copyright (C) 2014 Atmel
3  *		      Bo Shen <voice.shen@atmel.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/at91_common.h>
11 #include <asm/arch/at91_rstc.h>
12 #include <asm/arch/atmel_mpddrc.h>
13 #include <asm/arch/atmel_usba_udc.h>
14 #include <asm/arch/gpio.h>
15 #include <asm/arch/clk.h>
16 #include <asm/arch/sama5d3_smc.h>
17 #include <asm/arch/sama5d4.h>
18 #include <atmel_hlcdc.h>
19 #include <atmel_mci.h>
20 #include <lcd.h>
21 #include <mmc.h>
22 #include <net.h>
23 #include <netdev.h>
24 #include <nand.h>
25 #include <spi.h>
26 #include <version.h>
27 
28 DECLARE_GLOBAL_DATA_PTR;
29 
30 #ifdef CONFIG_ATMEL_SPI
31 int spi_cs_is_valid(unsigned int bus, unsigned int cs)
32 {
33 	return bus == 0 && cs == 0;
34 }
35 
36 void spi_cs_activate(struct spi_slave *slave)
37 {
38 	at91_set_pio_output(AT91_PIO_PORTC, 3, 0);
39 }
40 
41 void spi_cs_deactivate(struct spi_slave *slave)
42 {
43 	at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
44 }
45 
46 static void sama5d4_xplained_spi0_hw_init(void)
47 {
48 	at91_set_a_periph(AT91_PIO_PORTC, 0, 0);	/* SPI0_MISO */
49 	at91_set_a_periph(AT91_PIO_PORTC, 1, 0);	/* SPI0_MOSI */
50 	at91_set_a_periph(AT91_PIO_PORTC, 2, 0);	/* SPI0_SPCK */
51 
52 	at91_set_pio_output(AT91_PIO_PORTC, 3, 1);	/* SPI0_CS0 */
53 
54 	/* Enable clock */
55 	at91_periph_clk_enable(ATMEL_ID_SPI0);
56 }
57 #endif /* CONFIG_ATMEL_SPI */
58 
59 #ifdef CONFIG_NAND_ATMEL
60 static void sama5d4_xplained_nand_hw_init(void)
61 {
62 	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
63 
64 	at91_periph_clk_enable(ATMEL_ID_SMC);
65 
66 	/* Configure SMC CS3 for NAND */
67 	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
68 	       AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
69 	       &smc->cs[3].setup);
70 	writel(AT91_SMC_PULSE_NWE(2) | AT91_SMC_PULSE_NCS_WR(3) |
71 	       AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(3),
72 	       &smc->cs[3].pulse);
73 	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
74 	       &smc->cs[3].cycle);
75 	writel(AT91_SMC_TIMINGS_TCLR(2) | AT91_SMC_TIMINGS_TADL(7) |
76 	       AT91_SMC_TIMINGS_TAR(2)  | AT91_SMC_TIMINGS_TRR(3)   |
77 	       AT91_SMC_TIMINGS_TWB(7)  | AT91_SMC_TIMINGS_RBNSEL(3)|
78 	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
79 	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
80 	       AT91_SMC_MODE_EXNW_DISABLE |
81 	       AT91_SMC_MODE_DBW_8 |
82 	       AT91_SMC_MODE_TDF_CYCLE(3),
83 	       &smc->cs[3].mode);
84 
85 	at91_set_a_periph(AT91_PIO_PORTC, 5, 0);	/* D0 */
86 	at91_set_a_periph(AT91_PIO_PORTC, 6, 0);	/* D1 */
87 	at91_set_a_periph(AT91_PIO_PORTC, 7, 0);	/* D2 */
88 	at91_set_a_periph(AT91_PIO_PORTC, 8, 0);	/* D3 */
89 	at91_set_a_periph(AT91_PIO_PORTC, 9, 0);	/* D4 */
90 	at91_set_a_periph(AT91_PIO_PORTC, 10, 0);	/* D5 */
91 	at91_set_a_periph(AT91_PIO_PORTC, 11, 0);	/* D6 */
92 	at91_set_a_periph(AT91_PIO_PORTC, 12, 0);	/* D7 */
93 	at91_set_a_periph(AT91_PIO_PORTC, 13, 0);	/* RE */
94 	at91_set_a_periph(AT91_PIO_PORTC, 14, 0);	/* WE */
95 	at91_set_a_periph(AT91_PIO_PORTC, 15, 1);	/* NCS */
96 	at91_set_a_periph(AT91_PIO_PORTC, 16, 1);	/* RDY */
97 	at91_set_a_periph(AT91_PIO_PORTC, 17, 1);	/* ALE */
98 	at91_set_a_periph(AT91_PIO_PORTC, 18, 1);	/* CLE */
99 }
100 #endif
101 
102 #ifdef CONFIG_CMD_USB
103 static void sama5d4_xplained_usb_hw_init(void)
104 {
105 	at91_set_pio_output(AT91_PIO_PORTE, 11, 1);
106 	at91_set_pio_output(AT91_PIO_PORTE, 14, 1);
107 }
108 #endif
109 
110 #ifdef CONFIG_LCD
111 vidinfo_t panel_info = {
112 	.vl_col = 480,
113 	.vl_row = 272,
114 	.vl_clk = 9000000,
115 	.vl_bpix = LCD_BPP,
116 	.vl_tft = 1,
117 	.vl_hsync_len = 41,
118 	.vl_left_margin = 2,
119 	.vl_right_margin = 2,
120 	.vl_vsync_len = 11,
121 	.vl_upper_margin = 2,
122 	.vl_lower_margin = 2,
123 	.mmio = ATMEL_BASE_LCDC,
124 };
125 
126 /* No power up/down pin for the LCD pannel */
127 void lcd_enable(void)	{ /* Empty! */ }
128 void lcd_disable(void)	{ /* Empty! */ }
129 
130 unsigned int has_lcdc(void)
131 {
132 	return 1;
133 }
134 
135 static void sama5d4_xplained_lcd_hw_init(void)
136 {
137 	at91_set_a_periph(AT91_PIO_PORTA, 24, 0);	/* LCDPWM */
138 	at91_set_a_periph(AT91_PIO_PORTA, 25, 0);	/* LCDDISP */
139 	at91_set_a_periph(AT91_PIO_PORTA, 26, 0);	/* LCDVSYNC */
140 	at91_set_a_periph(AT91_PIO_PORTA, 27, 0);	/* LCDHSYNC */
141 	at91_set_a_periph(AT91_PIO_PORTA, 28, 0);	/* LCDDOTCK */
142 	at91_set_a_periph(AT91_PIO_PORTA, 29, 0);	/* LCDDEN */
143 
144 	at91_set_a_periph(AT91_PIO_PORTA,  0, 0);	/* LCDD0 */
145 	at91_set_a_periph(AT91_PIO_PORTA,  1, 0);	/* LCDD1 */
146 	at91_set_a_periph(AT91_PIO_PORTA,  2, 0);	/* LCDD2 */
147 	at91_set_a_periph(AT91_PIO_PORTA,  3, 0);	/* LCDD3 */
148 	at91_set_a_periph(AT91_PIO_PORTA,  4, 0);	/* LCDD4 */
149 	at91_set_a_periph(AT91_PIO_PORTA,  5, 0);	/* LCDD5 */
150 	at91_set_a_periph(AT91_PIO_PORTA,  6, 0);	/* LCDD6 */
151 	at91_set_a_periph(AT91_PIO_PORTA,  7, 0);	/* LCDD7 */
152 
153 	at91_set_a_periph(AT91_PIO_PORTA,  8, 0);	/* LCDD9 */
154 	at91_set_a_periph(AT91_PIO_PORTA,  9, 0);	/* LCDD8 */
155 	at91_set_a_periph(AT91_PIO_PORTA, 10, 0);	/* LCDD10 */
156 	at91_set_a_periph(AT91_PIO_PORTA, 11, 0);	/* LCDD11 */
157 	at91_set_a_periph(AT91_PIO_PORTA, 12, 0);	/* LCDD12 */
158 	at91_set_a_periph(AT91_PIO_PORTA, 13, 0);	/* LCDD13 */
159 	at91_set_a_periph(AT91_PIO_PORTA, 14, 0);	/* LCDD14 */
160 	at91_set_a_periph(AT91_PIO_PORTA, 15, 0);	/* LCDD15 */
161 
162 	at91_set_a_periph(AT91_PIO_PORTA, 16, 0);	/* LCDD16 */
163 	at91_set_a_periph(AT91_PIO_PORTA, 17, 0);	/* LCDD17 */
164 	at91_set_a_periph(AT91_PIO_PORTA, 18, 0);	/* LCDD18 */
165 	at91_set_a_periph(AT91_PIO_PORTA, 19, 0);	/* LCDD19 */
166 	at91_set_a_periph(AT91_PIO_PORTA, 20, 0);	/* LCDD20 */
167 	at91_set_a_periph(AT91_PIO_PORTA, 21, 0);	/* LCDD21 */
168 	at91_set_a_periph(AT91_PIO_PORTA, 22, 0);	/* LCDD22 */
169 	at91_set_a_periph(AT91_PIO_PORTA, 23, 0);	/* LCDD23 */
170 
171 	/* Enable clock */
172 	at91_periph_clk_enable(ATMEL_ID_LCDC);
173 }
174 
175 #ifdef CONFIG_LCD_INFO
176 void lcd_show_board_info(void)
177 {
178 	ulong dram_size, nand_size;
179 	int i;
180 	char temp[32];
181 
182 	lcd_printf("%s\n", U_BOOT_VERSION);
183 	lcd_printf("2014 ATMEL Corp\n");
184 	lcd_printf("%s CPU at %s MHz\n", get_cpu_name(),
185 		   strmhz(temp, get_cpu_clk_rate()));
186 
187 	dram_size = 0;
188 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
189 		dram_size += gd->bd->bi_dram[i].size;
190 
191 	nand_size = 0;
192 #ifdef CONFIG_NAND_ATMEL
193 	for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
194 		nand_size += nand_info[i]->size;
195 #endif
196 	lcd_printf("%ld MB SDRAM, %ld MB NAND\n",
197 		   dram_size >> 20, nand_size >> 20);
198 }
199 #endif /* CONFIG_LCD_INFO */
200 
201 #endif /* CONFIG_LCD */
202 
203 #ifdef CONFIG_GENERIC_ATMEL_MCI
204 void sama5d4_xplained_mci1_hw_init(void)
205 {
206 	at91_set_c_periph(AT91_PIO_PORTE, 19, 1);	/* MCI1 CDA */
207 	at91_set_c_periph(AT91_PIO_PORTE, 20, 1);	/* MCI1 DA0 */
208 	at91_set_c_periph(AT91_PIO_PORTE, 21, 1);	/* MCI1 DA1 */
209 	at91_set_c_periph(AT91_PIO_PORTE, 22, 1);	/* MCI1 DA2 */
210 	at91_set_c_periph(AT91_PIO_PORTE, 23, 1);	/* MCI1 DA3 */
211 	at91_set_c_periph(AT91_PIO_PORTE, 18, 0);	/* MCI1 CLK */
212 
213 	/*
214 	 * As the mci io internal pull down is too strong, so if the io needs
215 	 * external pull up, the pull up resistor will be very small, if so
216 	 * the power consumption will increase, so disable the interanl pull
217 	 * down to save the power.
218 	 */
219 	at91_set_pio_pulldown(AT91_PIO_PORTE, 18, 0);
220 	at91_set_pio_pulldown(AT91_PIO_PORTE, 19, 0);
221 	at91_set_pio_pulldown(AT91_PIO_PORTE, 20, 0);
222 	at91_set_pio_pulldown(AT91_PIO_PORTE, 21, 0);
223 	at91_set_pio_pulldown(AT91_PIO_PORTE, 22, 0);
224 	at91_set_pio_pulldown(AT91_PIO_PORTE, 23, 0);
225 
226 	/* Enable clock */
227 	at91_periph_clk_enable(ATMEL_ID_MCI1);
228 }
229 
230 int board_mmc_init(bd_t *bis)
231 {
232 	/* Enable the power supply */
233 	at91_set_pio_output(AT91_PIO_PORTE, 4, 0);
234 
235 	return atmel_mci_init((void *)ATMEL_BASE_MCI1);
236 }
237 #endif /* CONFIG_GENERIC_ATMEL_MCI */
238 
239 #ifdef CONFIG_MACB
240 void sama5d4_xplained_macb0_hw_init(void)
241 {
242 	at91_set_a_periph(AT91_PIO_PORTB, 0, 0);	/* ETXCK_EREFCK */
243 	at91_set_a_periph(AT91_PIO_PORTB, 6, 0);	/* ERXDV */
244 	at91_set_a_periph(AT91_PIO_PORTB, 8, 0);	/* ERX0 */
245 	at91_set_a_periph(AT91_PIO_PORTB, 9, 0);	/* ERX1 */
246 	at91_set_a_periph(AT91_PIO_PORTB, 7, 0);	/* ERXER */
247 	at91_set_a_periph(AT91_PIO_PORTB, 2, 0);	/* ETXEN */
248 	at91_set_a_periph(AT91_PIO_PORTB, 12, 0);	/* ETX0 */
249 	at91_set_a_periph(AT91_PIO_PORTB, 13, 0);	/* ETX1 */
250 	at91_set_a_periph(AT91_PIO_PORTB, 17, 0);	/* EMDIO */
251 	at91_set_a_periph(AT91_PIO_PORTB, 16, 0);	/* EMDC */
252 
253 	/* Enable clock */
254 	at91_periph_clk_enable(ATMEL_ID_GMAC0);
255 }
256 #endif
257 
258 static void sama5d4_xplained_serial3_hw_init(void)
259 {
260 	at91_set_b_periph(AT91_PIO_PORTE, 17, 1);	/* TXD3 */
261 	at91_set_b_periph(AT91_PIO_PORTE, 16, 0);	/* RXD3 */
262 
263 	/* Enable clock */
264 	at91_periph_clk_enable(ATMEL_ID_USART3);
265 }
266 
267 int board_early_init_f(void)
268 {
269 	at91_periph_clk_enable(ATMEL_ID_PIOA);
270 	at91_periph_clk_enable(ATMEL_ID_PIOB);
271 	at91_periph_clk_enable(ATMEL_ID_PIOC);
272 	at91_periph_clk_enable(ATMEL_ID_PIOD);
273 	at91_periph_clk_enable(ATMEL_ID_PIOE);
274 
275 	sama5d4_xplained_serial3_hw_init();
276 
277 	return 0;
278 }
279 
280 int board_init(void)
281 {
282 	/* adress of boot parameters */
283 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
284 
285 #ifdef CONFIG_ATMEL_SPI
286 	sama5d4_xplained_spi0_hw_init();
287 #endif
288 #ifdef CONFIG_NAND_ATMEL
289 	sama5d4_xplained_nand_hw_init();
290 #endif
291 #ifdef CONFIG_GENERIC_ATMEL_MCI
292 	sama5d4_xplained_mci1_hw_init();
293 #endif
294 #ifdef CONFIG_MACB
295 	sama5d4_xplained_macb0_hw_init();
296 #endif
297 #ifdef CONFIG_LCD
298 	sama5d4_xplained_lcd_hw_init();
299 #endif
300 #ifdef CONFIG_CMD_USB
301 	sama5d4_xplained_usb_hw_init();
302 #endif
303 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
304 	at91_udp_hw_init();
305 #endif
306 
307 	return 0;
308 }
309 
310 int dram_init(void)
311 {
312 	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
313 				    CONFIG_SYS_SDRAM_SIZE);
314 	return 0;
315 }
316 
317 int board_eth_init(bd_t *bis)
318 {
319 	int rc = 0;
320 
321 #ifdef CONFIG_MACB
322 	rc = macb_eth_initialize(0, (void *)ATMEL_BASE_GMAC0, 0x00);
323 #endif
324 
325 #ifdef CONFIG_USB_GADGET_ATMEL_USBA
326 	usba_udc_probe(&pdata);
327 #ifdef CONFIG_USB_ETH_RNDIS
328 	usb_eth_initialize(bis);
329 #endif
330 #endif
331 
332 	return rc;
333 }
334 
335 /* SPL */
336 #ifdef CONFIG_SPL_BUILD
337 void spl_board_init(void)
338 {
339 #ifdef CONFIG_SYS_USE_MMC
340 	sama5d4_xplained_mci1_hw_init();
341 #elif CONFIG_SYS_USE_NANDFLASH
342 	sama5d4_xplained_nand_hw_init();
343 #elif CONFIG_SYS_USE_SERIALFLASH
344 	sama5d4_xplained_spi0_hw_init();
345 #endif
346 }
347 
348 static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
349 {
350 	ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
351 
352 	ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
353 		    ATMEL_MPDDRC_CR_NR_ROW_14 |
354 		    ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
355 		    ATMEL_MPDDRC_CR_NB_8BANKS |
356 		    ATMEL_MPDDRC_CR_NDQS_DISABLED |
357 		    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
358 		    ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
359 
360 	ddr2->rtr = 0x2b0;
361 
362 	ddr2->tpr0 = (8 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
363 		      3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
364 		      3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
365 		      10 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
366 		      3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
367 		      2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
368 		      2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
369 		      2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
370 
371 	ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
372 		      200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
373 		      25 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
374 		      23 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
375 
376 	ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
377 		      2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
378 		      3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
379 		      2 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
380 		      8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
381 }
382 
383 void mem_init(void)
384 {
385 	struct atmel_mpddrc_config ddr2;
386 
387 	ddr2_conf(&ddr2);
388 
389 	/* Enable MPDDR clock */
390 	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
391 	at91_system_clk_enable(AT91_PMC_DDR);
392 
393 	/* DDRAM2 Controller initialize */
394 	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
395 }
396 
397 void at91_pmc_init(void)
398 {
399 	u32 tmp;
400 
401 	tmp = AT91_PMC_PLLAR_29 |
402 	      AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
403 	      AT91_PMC_PLLXR_MUL(87) |
404 	      AT91_PMC_PLLXR_DIV(1);
405 	at91_plla_init(tmp);
406 
407 	at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x0));
408 
409 	tmp = AT91_PMC_MCKR_H32MXDIV |
410 	      AT91_PMC_MCKR_PLLADIV_2 |
411 	      AT91_PMC_MCKR_MDIV_3 |
412 	      AT91_PMC_MCKR_CSS_PLLA;
413 	at91_mck_init(tmp);
414 }
415 #endif
416