1 /*
2  * Copyright 2010-2012 Freescale Semiconductor, Inc.
3  * Authors: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
4  *          Timur Tabi <timur@freescale.com>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #include <common.h>
10 #include <command.h>
11 #include <pci.h>
12 #include <asm/processor.h>
13 #include <asm/mmu.h>
14 #include <asm/cache.h>
15 #include <asm/immap_85xx.h>
16 #include <asm/fsl_pci.h>
17 #include <fsl_ddr_sdram.h>
18 #include <asm/fsl_serdes.h>
19 #include <asm/io.h>
20 #include <linux/libfdt.h>
21 #include <fdt_support.h>
22 #include <fsl_mdio.h>
23 #include <tsec.h>
24 #include <asm/fsl_law.h>
25 #include <netdev.h>
26 #include <i2c.h>
27 #include <hwconfig.h>
28 
29 #include "../common/ngpixis.h"
30 
31 DECLARE_GLOBAL_DATA_PTR;
32 
33 int board_early_init_f(void)
34 {
35 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
36 
37 	/* Set pmuxcr to allow both i2c1 and i2c2 */
38 	setbits_be32(&gur->pmuxcr, 0x1000);
39 #ifdef CONFIG_SYS_RAMBOOT
40 	setbits_be32(&gur->pmuxcr,
41 		in_be32(&gur->pmuxcr) | MPC85xx_PMUXCR_SD_DATA);
42 #endif
43 
44 	/* Read back the register to synchronize the write. */
45 	in_be32(&gur->pmuxcr);
46 
47 	/* Set the pin muxing to enable ETSEC2. */
48 	clrbits_be32(&gur->pmuxcr2, 0x001F8000);
49 
50 	/* Enable the SPI */
51 	clrsetbits_8(&pixis->brdcfg0, PIXIS_ELBC_SPI_MASK, PIXIS_SPI);
52 
53 	return 0;
54 }
55 
56 int checkboard(void)
57 {
58 	u8 sw;
59 
60 	printf("Board: P1022DS Sys ID: 0x%02x, "
61 	       "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
62 		in_8(&pixis->id), in_8(&pixis->arch), in_8(&pixis->scver));
63 
64 	sw = in_8(&PIXIS_SW(PIXIS_LBMAP_SWITCH));
65 
66 	switch ((sw & PIXIS_LBMAP_MASK) >> 6) {
67 	case 0:
68 		printf ("vBank: %u\n", ((sw & 0x30) >> 4));
69 		break;
70 	case 1:
71 		printf ("NAND\n");
72 		break;
73 	case 2:
74 	case 3:
75 		puts ("Promjet\n");
76 		break;
77 	}
78 
79 	return 0;
80 }
81 
82 #define CONFIG_TFP410_I2C_ADDR	0x38
83 
84 /* Masks for the SSI_TDM and AUDCLK bits of the ngPIXIS BRDCFG1 register. */
85 #define CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK	0x0c
86 #define CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK	0x03
87 
88 /* Route the I2C1 pins to the SSI port instead. */
89 #define CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI	0x08
90 
91 /* Choose the 12.288Mhz codec reference clock */
92 #define CONFIG_PIXIS_BRDCFG1_AUDCLK_12		0x02
93 
94 /* Choose the 11.2896Mhz codec reference clock */
95 #define CONFIG_PIXIS_BRDCFG1_AUDCLK_11		0x01
96 
97 /* Connect to USB2 */
98 #define CONFIG_PIXIS_BRDCFG0_USB2		0x10
99 /* Connect to TFM bus */
100 #define CONFIG_PIXIS_BRDCFG1_TDM		0x0c
101 /* Connect to SPI */
102 #define CONFIG_PIXIS_BRDCFG0_SPI		0x80
103 
104 int misc_init_r(void)
105 {
106 	u8 temp;
107 	const char *audclk;
108 	size_t arglen;
109 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
110 
111 	/* For DVI, enable the TFP410 Encoder. */
112 
113 	temp = 0xBF;
114 	if (i2c_write(CONFIG_TFP410_I2C_ADDR, 0x08, 1, &temp, sizeof(temp)) < 0)
115 		return -1;
116 	if (i2c_read(CONFIG_TFP410_I2C_ADDR, 0x08, 1, &temp, sizeof(temp)) < 0)
117 		return -1;
118 	debug("DVI Encoder Read: 0x%02x\n", temp);
119 
120 	temp = 0x10;
121 	if (i2c_write(CONFIG_TFP410_I2C_ADDR, 0x0A, 1, &temp, sizeof(temp)) < 0)
122 		return -1;
123 	if (i2c_read(CONFIG_TFP410_I2C_ADDR, 0x0A, 1, &temp, sizeof(temp)) < 0)
124 		return -1;
125 	debug("DVI Encoder Read: 0x%02x\n",temp);
126 
127 	/* Enable the USB2 in PMUXCR2 and FGPA */
128 	if (hwconfig("usb2")) {
129 		clrsetbits_be32(&gur->pmuxcr2, MPC85xx_PMUXCR2_ETSECUSB_MASK,
130 			MPC85xx_PMUXCR2_USB);
131 		setbits_8(&pixis->brdcfg0, CONFIG_PIXIS_BRDCFG0_USB2);
132 	}
133 
134 	/* tdm and audio can not enable simultaneous*/
135 	if (hwconfig("tdm") && hwconfig("audclk")){
136 		printf("WARNING: TDM and AUDIO can not be enabled simultaneous !\n");
137 		return -1;
138 	}
139 
140 	/* Enable the TDM in PMUXCR and FGPA */
141 	if (hwconfig("tdm")) {
142 		clrsetbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_TDM_MASK,
143 			MPC85xx_PMUXCR_TDM);
144 		setbits_8(&pixis->brdcfg1, CONFIG_PIXIS_BRDCFG1_TDM);
145 		/* TDM need some configration option by SPI */
146 		clrsetbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_SPI_MASK,
147 			MPC85xx_PMUXCR_SPI);
148 		setbits_8(&pixis->brdcfg0, CONFIG_PIXIS_BRDCFG0_SPI);
149 	}
150 
151 	/*
152 	 * Enable the reference clock for the WM8776 codec, and route the MUX
153 	 * pins for SSI. The default is the 12.288 MHz clock
154 	 */
155 
156 	if (hwconfig("audclk")) {
157 		temp = in_8(&pixis->brdcfg1) & ~(CONFIG_PIXIS_BRDCFG1_SSI_TDM_MASK |
158 			CONFIG_PIXIS_BRDCFG1_AUDCLK_MASK);
159 		temp |= CONFIG_PIXIS_BRDCFG1_SSI_TDM_SSI;
160 
161 		audclk = hwconfig_arg("audclk", &arglen);
162 		/* Check the first two chars only */
163 		if (audclk && (strncmp(audclk, "11", 2) == 0))
164 			temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_11;
165 		else
166 			temp |= CONFIG_PIXIS_BRDCFG1_AUDCLK_12;
167 		setbits_8(&pixis->brdcfg1, temp);
168 	}
169 
170 	return 0;
171 }
172 
173 /*
174  * A list of PCI and SATA slots
175  */
176 enum slot_id {
177 	SLOT_PCIE1 = 1,
178 	SLOT_PCIE2,
179 	SLOT_PCIE3,
180 	SLOT_PCIE4,
181 	SLOT_PCIE5,
182 	SLOT_SATA1,
183 	SLOT_SATA2
184 };
185 
186 /*
187  * This array maps the slot identifiers to their names on the P1022DS board.
188  */
189 static const char *slot_names[] = {
190 	[SLOT_PCIE1] = "Slot 1",
191 	[SLOT_PCIE2] = "Slot 2",
192 	[SLOT_PCIE3] = "Slot 3",
193 	[SLOT_PCIE4] = "Slot 4",
194 	[SLOT_PCIE5] = "Mini-PCIe",
195 	[SLOT_SATA1] = "SATA 1",
196 	[SLOT_SATA2] = "SATA 2",
197 };
198 
199 /*
200  * This array maps a given SERDES configuration and SERDES device to the PCI or
201  * SATA slot that it connects to.  This mapping is hard-coded in the FPGA.
202  */
203 static u8 serdes_dev_slot[][SATA2 + 1] = {
204 	[0x01] = { [PCIE3] = SLOT_PCIE4, [PCIE2] = SLOT_PCIE5 },
205 	[0x02] = { [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
206 	[0x09] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE4,
207 		   [PCIE2] = SLOT_PCIE5 },
208 	[0x16] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
209 		   [PCIE2] = SLOT_PCIE3,
210 		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
211 	[0x17] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE2,
212 		   [PCIE2] = SLOT_PCIE3 },
213 	[0x1a] = { [PCIE1] = SLOT_PCIE1, [PCIE2] = SLOT_PCIE3,
214 		   [PCIE2] = SLOT_PCIE3,
215 		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
216 	[0x1c] = { [PCIE1] = SLOT_PCIE1,
217 		   [SATA1] = SLOT_SATA1, [SATA2] = SLOT_SATA2 },
218 	[0x1e] = { [PCIE1] = SLOT_PCIE1, [PCIE3] = SLOT_PCIE3 },
219 	[0x1f] = { [PCIE1] = SLOT_PCIE1 },
220 };
221 
222 
223 /*
224  * Returns the name of the slot to which the PCIe or SATA controller is
225  * connected
226  */
227 const char *board_serdes_name(enum srds_prtcl device)
228 {
229 	ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
230 	u32 pordevsr = in_be32(&gur->pordevsr);
231 	unsigned int srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
232 				MPC85xx_PORDEVSR_IO_SEL_SHIFT;
233 	enum slot_id slot = serdes_dev_slot[srds_cfg][device];
234 	const char *name = slot_names[slot];
235 
236 	if (name)
237 		return name;
238 	else
239 		return "Nothing";
240 }
241 
242 #ifdef CONFIG_PCI
243 void pci_init_board(void)
244 {
245 	fsl_pcie_init_board(0);
246 }
247 #endif
248 
249 int board_early_init_r(void)
250 {
251 	const unsigned int flashbase = CONFIG_SYS_FLASH_BASE;
252 	int flash_esel = find_tlb_idx((void *)flashbase, 1);
253 
254 	/*
255 	 * Remap Boot flash + PROMJET region to caching-inhibited
256 	 * so that flash can be erased properly.
257 	 */
258 
259 	/* Flush d-cache and invalidate i-cache of any FLASH data */
260 	flush_dcache();
261 	invalidate_icache();
262 
263 	if (flash_esel == -1) {
264 		/* very unlikely unless something is messed up */
265 		puts("Error: Could not find TLB for FLASH BASE\n");
266 		flash_esel = 2;	/* give our best effort to continue */
267 	} else {
268 		/* invalidate existing TLB entry for flash + promjet */
269 		disable_tlb(flash_esel);
270 	}
271 
272 	set_tlb(1, flashbase, CONFIG_SYS_FLASH_BASE_PHYS,
273 			MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
274 			0, flash_esel, BOOKE_PAGESZ_256M, 1);
275 
276 	return 0;
277 }
278 
279 /*
280  * Initialize on-board and/or PCI Ethernet devices
281  *
282  * Returns:
283  *      <0, error
284  *       0, no ethernet devices found
285  *      >0, number of ethernet devices initialized
286  */
287 int board_eth_init(bd_t *bis)
288 {
289 	struct fsl_pq_mdio_info mdio_info;
290 	struct tsec_info_struct tsec_info[2];
291 	unsigned int num = 0;
292 
293 #ifdef CONFIG_TSEC1
294 	SET_STD_TSEC_INFO(tsec_info[num], 1);
295 	num++;
296 #endif
297 #ifdef CONFIG_TSEC2
298 	SET_STD_TSEC_INFO(tsec_info[num], 2);
299 	num++;
300 #endif
301 
302 	mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
303 	mdio_info.name = DEFAULT_MII_NAME;
304 	fsl_pq_mdio_init(bis, &mdio_info);
305 
306 	return tsec_eth_init(bis, tsec_info, num) + pci_eth_init(bis);
307 }
308 
309 #ifdef CONFIG_OF_BOARD_SETUP
310 /**
311  * ft_codec_setup - fix up the clock-frequency property of the codec node
312  *
313  * Update the clock-frequency property based on the value of the 'audclk'
314  * hwconfig option.  If audclk is not specified, then don't write anything
315  * to the device tree, because it means that the codec clock is disabled.
316  */
317 static void ft_codec_setup(void *blob, const char *compatible)
318 {
319 	const char *audclk;
320 	size_t arglen;
321 	u32 freq;
322 
323 	audclk = hwconfig_arg("audclk", &arglen);
324 	if (audclk) {
325 		if (strncmp(audclk, "11", 2) == 0)
326 			freq = 11289600;
327 		else
328 			freq = 12288000;
329 
330 		do_fixup_by_compat_u32(blob, compatible, "clock-frequency",
331 				       freq, 1);
332 	}
333 }
334 
335 int ft_board_setup(void *blob, bd_t *bd)
336 {
337 	phys_addr_t base;
338 	phys_size_t size;
339 
340 	ft_cpu_setup(blob, bd);
341 
342 	base = env_get_bootm_low();
343 	size = env_get_bootm_size();
344 
345 	fdt_fixup_memory(blob, (u64)base, (u64)size);
346 
347 #ifdef CONFIG_HAS_FSL_DR_USB
348 	fsl_fdt_fixup_dr_usb(blob, bd);
349 #endif
350 
351 	FT_FSL_PCI_SETUP;
352 
353 #ifdef CONFIG_FSL_SGMII_RISER
354 	fsl_sgmii_riser_fdt_fixup(blob);
355 #endif
356 
357 	/* Update the WM8776 node's clock frequency property */
358 	ft_codec_setup(blob, "wlf,wm8776");
359 
360 	return 0;
361 }
362 #endif
363