1 /*
2  * Copyright 2014-2015 Freescale Semiconductor
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <fsl_immap.h>
9 #include <fsl_ifc.h>
10 #include <ahci.h>
11 #include <scsi.h>
12 #include <asm/arch/fsl_serdes.h>
13 #include <asm/arch/soc.h>
14 #include <asm/io.h>
15 #include <asm/global_data.h>
16 #include <asm/arch-fsl-layerscape/config.h>
17 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
18 #include <fsl_csu.h>
19 #endif
20 #ifdef CONFIG_SYS_FSL_DDR
21 #include <fsl_ddr_sdram.h>
22 #include <fsl_ddr.h>
23 #endif
24 #ifdef CONFIG_CHAIN_OF_TRUST
25 #include <fsl_validate.h>
26 #endif
27 #include <fsl_immap.h>
28 
29 DECLARE_GLOBAL_DATA_PTR;
30 
31 bool soc_has_dp_ddr(void)
32 {
33 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
34 	u32 svr = gur_in32(&gur->svr);
35 
36 	/* LS2085A, LS2088A, LS2048A has DP_DDR */
37 	if ((SVR_SOC_VER(svr) == SVR_LS2085A) ||
38 	    (SVR_SOC_VER(svr) == SVR_LS2088A) ||
39 	    (SVR_SOC_VER(svr) == SVR_LS2048A))
40 		return true;
41 
42 	return false;
43 }
44 
45 bool soc_has_aiop(void)
46 {
47 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
48 	u32 svr = gur_in32(&gur->svr);
49 
50 	/* LS2085A has AIOP */
51 	if (SVR_SOC_VER(svr) == SVR_LS2085A)
52 		return true;
53 
54 	return false;
55 }
56 
57 static inline void set_usb_txvreftune(u32 __iomem *scfg, u32 offset)
58 {
59 	scfg_clrsetbits32(scfg + offset / 4,
60 			0xF << 6,
61 			SCFG_USB_TXVREFTUNE << 6);
62 }
63 
64 static void erratum_a009008(void)
65 {
66 #ifdef CONFIG_SYS_FSL_ERRATUM_A009008
67 	u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
68 
69 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
70 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB1);
71 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB2);
72 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB3);
73 #elif defined(CONFIG_ARCH_LS2080A)
74 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR);
75 #endif
76 #endif /* CONFIG_SYS_FSL_ERRATUM_A009008 */
77 }
78 
79 static inline void set_usb_sqrxtune(u32 __iomem *scfg, u32 offset)
80 {
81 	scfg_clrbits32(scfg + offset / 4,
82 			SCFG_USB_SQRXTUNE_MASK << 23);
83 }
84 
85 static void erratum_a009798(void)
86 {
87 #ifdef CONFIG_SYS_FSL_ERRATUM_A009798
88 	u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
89 
90 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
91 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB1);
92 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB2);
93 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB3);
94 #elif defined(CONFIG_ARCH_LS2080A)
95 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR);
96 #endif
97 #endif /* CONFIG_SYS_FSL_ERRATUM_A009798 */
98 }
99 
100 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
101 static inline void set_usb_pcstxswingfull(u32 __iomem *scfg, u32 offset)
102 {
103 	scfg_clrsetbits32(scfg + offset / 4,
104 			0x7F << 9,
105 			SCFG_USB_PCSTXSWINGFULL << 9);
106 }
107 #endif
108 
109 static void erratum_a008997(void)
110 {
111 #ifdef CONFIG_SYS_FSL_ERRATUM_A008997
112 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
113 	u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
114 
115 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB1);
116 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB2);
117 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB3);
118 #endif
119 #endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */
120 }
121 
122 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
123 
124 #define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy)	\
125 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1);	\
126 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2);	\
127 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3);	\
128 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)
129 
130 #elif defined(CONFIG_ARCH_LS2080A)
131 
132 #define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy)	\
133 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1); \
134 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2); \
135 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3); \
136 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)
137 
138 #endif
139 
140 static void erratum_a009007(void)
141 {
142 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
143 	void __iomem *usb_phy = (void __iomem *)SCFG_USB_PHY1;
144 
145 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
146 
147 	usb_phy = (void __iomem *)SCFG_USB_PHY2;
148 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
149 
150 	usb_phy = (void __iomem *)SCFG_USB_PHY3;
151 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
152 #elif defined(CONFIG_ARCH_LS2080A)
153 	void __iomem *dcsr = (void __iomem *)DCSR_BASE;
154 
155 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY1);
156 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY2);
157 #endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */
158 }
159 
160 #if defined(CONFIG_FSL_LSCH3)
161 /*
162  * This erratum requires setting a value to eddrtqcr1 to
163  * optimal the DDR performance.
164  */
165 static void erratum_a008336(void)
166 {
167 #ifdef CONFIG_SYS_FSL_ERRATUM_A008336
168 	u32 *eddrtqcr1;
169 
170 #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR
171 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800;
172 	if (fsl_ddr_get_version(0) == 0x50200)
173 		out_le32(eddrtqcr1, 0x63b30002);
174 #endif
175 #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR
176 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800;
177 	if (fsl_ddr_get_version(0) == 0x50200)
178 		out_le32(eddrtqcr1, 0x63b30002);
179 #endif
180 #endif
181 }
182 
183 /*
184  * This erratum requires a register write before being Memory
185  * controller 3 being enabled.
186  */
187 static void erratum_a008514(void)
188 {
189 #ifdef CONFIG_SYS_FSL_ERRATUM_A008514
190 	u32 *eddrtqcr1;
191 
192 #ifdef CONFIG_SYS_FSL_DCSR_DDR3_ADDR
193 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800;
194 	out_le32(eddrtqcr1, 0x63b20002);
195 #endif
196 #endif
197 }
198 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
199 #define PLATFORM_CYCLE_ENV_VAR	"a009635_interval_val"
200 
201 static unsigned long get_internval_val_mhz(void)
202 {
203 	char *interval = env_get(PLATFORM_CYCLE_ENV_VAR);
204 	/*
205 	 *  interval is the number of platform cycles(MHz) between
206 	 *  wake up events generated by EPU.
207 	 */
208 	ulong interval_mhz = get_bus_freq(0) / (1000 * 1000);
209 
210 	if (interval)
211 		interval_mhz = simple_strtoul(interval, NULL, 10);
212 
213 	return interval_mhz;
214 }
215 
216 void erratum_a009635(void)
217 {
218 	u32 val;
219 	unsigned long interval_mhz = get_internval_val_mhz();
220 
221 	if (!interval_mhz)
222 		return;
223 
224 	val = in_le32(DCSR_CGACRE5);
225 	writel(val | 0x00000200, DCSR_CGACRE5);
226 
227 	val = in_le32(EPU_EPCMPR5);
228 	writel(interval_mhz, EPU_EPCMPR5);
229 	val = in_le32(EPU_EPCCR5);
230 	writel(val | 0x82820000, EPU_EPCCR5);
231 	val = in_le32(EPU_EPSMCR5);
232 	writel(val | 0x002f0000, EPU_EPSMCR5);
233 	val = in_le32(EPU_EPECR5);
234 	writel(val | 0x20000000, EPU_EPECR5);
235 	val = in_le32(EPU_EPGCR);
236 	writel(val | 0x80000000, EPU_EPGCR);
237 }
238 #endif	/* CONFIG_SYS_FSL_ERRATUM_A009635 */
239 
240 static void erratum_rcw_src(void)
241 {
242 #if defined(CONFIG_SPL) && defined(CONFIG_NAND_BOOT)
243 	u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE;
244 	u32 __iomem *dcfg_dcsr = (u32 __iomem *)DCFG_DCSR_BASE;
245 	u32 val;
246 
247 	val = in_le32(dcfg_ccsr + DCFG_PORSR1 / 4);
248 	val &= ~DCFG_PORSR1_RCW_SRC;
249 	val |= DCFG_PORSR1_RCW_SRC_NOR;
250 	out_le32(dcfg_dcsr + DCFG_DCSR_PORCR1 / 4, val);
251 #endif
252 }
253 
254 #define I2C_DEBUG_REG 0x6
255 #define I2C_GLITCH_EN 0x8
256 /*
257  * This erratum requires setting glitch_en bit to enable
258  * digital glitch filter to improve clock stability.
259  */
260 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203
261 static void erratum_a009203(void)
262 {
263 	u8 __iomem *ptr;
264 #ifdef CONFIG_SYS_I2C
265 #ifdef I2C1_BASE_ADDR
266 	ptr = (u8 __iomem *)(I2C1_BASE_ADDR + I2C_DEBUG_REG);
267 
268 	writeb(I2C_GLITCH_EN, ptr);
269 #endif
270 #ifdef I2C2_BASE_ADDR
271 	ptr = (u8 __iomem *)(I2C2_BASE_ADDR + I2C_DEBUG_REG);
272 
273 	writeb(I2C_GLITCH_EN, ptr);
274 #endif
275 #ifdef I2C3_BASE_ADDR
276 	ptr = (u8 __iomem *)(I2C3_BASE_ADDR + I2C_DEBUG_REG);
277 
278 	writeb(I2C_GLITCH_EN, ptr);
279 #endif
280 #ifdef I2C4_BASE_ADDR
281 	ptr = (u8 __iomem *)(I2C4_BASE_ADDR + I2C_DEBUG_REG);
282 
283 	writeb(I2C_GLITCH_EN, ptr);
284 #endif
285 #endif
286 }
287 #endif
288 
289 void bypass_smmu(void)
290 {
291 	u32 val;
292 	val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
293 	out_le32(SMMU_SCR0, val);
294 	val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
295 	out_le32(SMMU_NSCR0, val);
296 }
297 void fsl_lsch3_early_init_f(void)
298 {
299 	erratum_rcw_src();
300 	init_early_memctl_regs();	/* tighten IFC timing */
301 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203
302 	erratum_a009203();
303 #endif
304 	erratum_a008514();
305 	erratum_a008336();
306 	erratum_a009008();
307 	erratum_a009798();
308 	erratum_a008997();
309 	erratum_a009007();
310 #ifdef CONFIG_CHAIN_OF_TRUST
311 	/* In case of Secure Boot, the IBR configures the SMMU
312 	* to allow only Secure transactions.
313 	* SMMU must be reset in bypass mode.
314 	* Set the ClientPD bit and Clear the USFCFG Bit
315 	*/
316 	if (fsl_check_boot_mode_secure() == 1)
317 		bypass_smmu();
318 #endif
319 }
320 
321 #ifdef CONFIG_SCSI_AHCI_PLAT
322 int sata_init(void)
323 {
324 	struct ccsr_ahci __iomem *ccsr_ahci;
325 
326 	ccsr_ahci  = (void *)CONFIG_SYS_SATA2;
327 	out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
328 	out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
329 	out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
330 
331 	ccsr_ahci  = (void *)CONFIG_SYS_SATA1;
332 	out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
333 	out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
334 	out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
335 
336 	ahci_init((void __iomem *)CONFIG_SYS_SATA1);
337 	scsi_scan(false);
338 
339 	return 0;
340 }
341 #endif
342 
343 #elif defined(CONFIG_FSL_LSCH2)
344 #ifdef CONFIG_SCSI_AHCI_PLAT
345 int sata_init(void)
346 {
347 	struct ccsr_ahci __iomem *ccsr_ahci = (void *)CONFIG_SYS_SATA;
348 
349 	/* Disable SATA ECC */
350 	out_le32((void *)CONFIG_SYS_DCSR_DCFG_ADDR + 0x520, 0x80000000);
351 	out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
352 	out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
353 	out_le32(&ccsr_ahci->axicc, AHCI_PORT_AXICC_CFG);
354 
355 	ahci_init((void __iomem *)CONFIG_SYS_SATA);
356 	scsi_scan(false);
357 
358 	return 0;
359 }
360 #endif
361 
362 static void erratum_a009929(void)
363 {
364 #ifdef CONFIG_SYS_FSL_ERRATUM_A009929
365 	struct ccsr_gur *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
366 	u32 __iomem *dcsr_cop_ccp = (void *)CONFIG_SYS_DCSR_COP_CCP_ADDR;
367 	u32 rstrqmr1 = gur_in32(&gur->rstrqmr1);
368 
369 	rstrqmr1 |= 0x00000400;
370 	gur_out32(&gur->rstrqmr1, rstrqmr1);
371 	writel(0x01000000, dcsr_cop_ccp);
372 #endif
373 }
374 
375 /*
376  * This erratum requires setting a value to eddrtqcr1 to optimal
377  * the DDR performance. The eddrtqcr1 register is in SCFG space
378  * of LS1043A and the offset is 0x157_020c.
379  */
380 #if defined(CONFIG_SYS_FSL_ERRATUM_A009660) \
381 	&& defined(CONFIG_SYS_FSL_ERRATUM_A008514)
382 #error A009660 and A008514 can not be both enabled.
383 #endif
384 
385 static void erratum_a009660(void)
386 {
387 #ifdef CONFIG_SYS_FSL_ERRATUM_A009660
388 	u32 *eddrtqcr1 = (void *)CONFIG_SYS_FSL_SCFG_ADDR + 0x20c;
389 	out_be32(eddrtqcr1, 0x63b20042);
390 #endif
391 }
392 
393 static void erratum_a008850_early(void)
394 {
395 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850
396 	/* part 1 of 2 */
397 	struct ccsr_cci400 __iomem *cci = (void *)(CONFIG_SYS_IMMR +
398 						CONFIG_SYS_CCI400_OFFSET);
399 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
400 
401 	/* Skip if running at lower exception level */
402 	if (current_el() < 3)
403 		return;
404 
405 	/* disables propagation of barrier transactions to DDRC from CCI400 */
406 	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
407 
408 	/* disable the re-ordering in DDRC */
409 	ddr_out32(&ddr->eor, DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS);
410 #endif
411 }
412 
413 void erratum_a008850_post(void)
414 {
415 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850
416 	/* part 2 of 2 */
417 	struct ccsr_cci400 __iomem *cci = (void *)(CONFIG_SYS_IMMR +
418 						CONFIG_SYS_CCI400_OFFSET);
419 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
420 	u32 tmp;
421 
422 	/* Skip if running at lower exception level */
423 	if (current_el() < 3)
424 		return;
425 
426 	/* enable propagation of barrier transactions to DDRC from CCI400 */
427 	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
428 
429 	/* enable the re-ordering in DDRC */
430 	tmp = ddr_in32(&ddr->eor);
431 	tmp &= ~(DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS);
432 	ddr_out32(&ddr->eor, tmp);
433 #endif
434 }
435 
436 #ifdef CONFIG_SYS_FSL_ERRATUM_A010315
437 void erratum_a010315(void)
438 {
439 	int i;
440 
441 	for (i = PCIE1; i <= PCIE4; i++)
442 		if (!is_serdes_configured(i)) {
443 			debug("PCIe%d: disabled all R/W permission!\n", i);
444 			set_pcie_ns_access(i, 0);
445 		}
446 }
447 #endif
448 
449 static void erratum_a010539(void)
450 {
451 #if defined(CONFIG_SYS_FSL_ERRATUM_A010539) && defined(CONFIG_QSPI_BOOT)
452 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
453 	u32 porsr1;
454 
455 	porsr1 = in_be32(&gur->porsr1);
456 	porsr1 &= ~FSL_CHASSIS2_CCSR_PORSR1_RCW_MASK;
457 	out_be32((void *)(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_PORCR1),
458 		 porsr1);
459 #endif
460 }
461 
462 /* Get VDD in the unit mV from voltage ID */
463 int get_core_volt_from_fuse(void)
464 {
465 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
466 	int vdd;
467 	u32 fusesr;
468 	u8 vid;
469 
470 	fusesr = in_be32(&gur->dcfg_fusesr);
471 	debug("%s: fusesr = 0x%x\n", __func__, fusesr);
472 	vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_ALTVID_SHIFT) &
473 		FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK;
474 	if ((vid == 0) || (vid == FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK)) {
475 		vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_VID_SHIFT) &
476 			FSL_CHASSIS2_DCFG_FUSESR_VID_MASK;
477 	}
478 	debug("%s: VID = 0x%x\n", __func__, vid);
479 	switch (vid) {
480 	case 0x00: /* VID isn't supported */
481 		vdd = -EINVAL;
482 		debug("%s: The VID feature is not supported\n", __func__);
483 		break;
484 	case 0x08: /* 0.9V silicon */
485 		vdd = 900;
486 		break;
487 	case 0x10: /* 1.0V silicon */
488 		vdd = 1000;
489 		break;
490 	default:  /* Other core voltage */
491 		vdd = -EINVAL;
492 		printf("%s: The VID(%x) isn't supported\n", __func__, vid);
493 		break;
494 	}
495 	debug("%s: The required minimum volt of CORE is %dmV\n", __func__, vdd);
496 
497 	return vdd;
498 }
499 
500 __weak int board_switch_core_volt(u32 vdd)
501 {
502 	return 0;
503 }
504 
505 static int setup_core_volt(u32 vdd)
506 {
507 	return board_setup_core_volt(vdd);
508 }
509 
510 #ifdef CONFIG_SYS_FSL_DDR
511 static void ddr_enable_0v9_volt(bool en)
512 {
513 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
514 	u32 tmp;
515 
516 	tmp = ddr_in32(&ddr->ddr_cdr1);
517 
518 	if (en)
519 		tmp |= DDR_CDR1_V0PT9_EN;
520 	else
521 		tmp &= ~DDR_CDR1_V0PT9_EN;
522 
523 	ddr_out32(&ddr->ddr_cdr1, tmp);
524 }
525 #endif
526 
527 int setup_chip_volt(void)
528 {
529 	int vdd;
530 
531 	vdd = get_core_volt_from_fuse();
532 	/* Nothing to do for silicons doesn't support VID */
533 	if (vdd < 0)
534 		return vdd;
535 
536 	if (setup_core_volt(vdd))
537 		printf("%s: Switch core VDD to %dmV failed\n", __func__, vdd);
538 #ifdef CONFIG_SYS_HAS_SERDES
539 	if (setup_serdes_volt(vdd))
540 		printf("%s: Switch SVDD to %dmV failed\n", __func__, vdd);
541 #endif
542 
543 #ifdef CONFIG_SYS_FSL_DDR
544 	if (vdd == 900)
545 		ddr_enable_0v9_volt(true);
546 #endif
547 
548 	return 0;
549 }
550 
551 void fsl_lsch2_early_init_f(void)
552 {
553 	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)(CONFIG_SYS_IMMR +
554 					CONFIG_SYS_CCI400_OFFSET);
555 	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
556 
557 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
558 	enable_layerscape_ns_access();
559 #endif
560 
561 #ifdef CONFIG_FSL_IFC
562 	init_early_memctl_regs();	/* tighten IFC timing */
563 #endif
564 
565 #if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT)
566 	out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
567 #endif
568 	/* Make SEC reads and writes snoopable */
569 	setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP |
570 		     SCFG_SNPCNFGCR_SECWRSNP |
571 		     SCFG_SNPCNFGCR_SATARDSNP |
572 		     SCFG_SNPCNFGCR_SATAWRSNP);
573 
574 	/*
575 	 * Enable snoop requests and DVM message requests for
576 	 * Slave insterface S4 (A53 core cluster)
577 	 */
578 	if (current_el() == 3) {
579 		out_le32(&cci->slave[4].snoop_ctrl,
580 			 CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
581 	}
582 
583 	/* Erratum */
584 	erratum_a008850_early(); /* part 1 of 2 */
585 	erratum_a009929();
586 	erratum_a009660();
587 	erratum_a010539();
588 	erratum_a009008();
589 	erratum_a009798();
590 	erratum_a008997();
591 	erratum_a009007();
592 }
593 #endif
594 
595 #ifdef CONFIG_QSPI_AHB_INIT
596 /* Enable 4bytes address support and fast read */
597 int qspi_ahb_init(void)
598 {
599 	u32 *qspi_lut, lut_key, *qspi_key;
600 
601 	qspi_key = (void *)SYS_FSL_QSPI_ADDR + 0x300;
602 	qspi_lut = (void *)SYS_FSL_QSPI_ADDR + 0x310;
603 
604 	lut_key = in_be32(qspi_key);
605 
606 	if (lut_key == 0x5af05af0) {
607 		/* That means the register is BE */
608 		out_be32(qspi_key, 0x5af05af0);
609 		/* Unlock the lut table */
610 		out_be32(qspi_key + 1, 0x00000002);
611 		out_be32(qspi_lut, 0x0820040c);
612 		out_be32(qspi_lut + 1, 0x1c080c08);
613 		out_be32(qspi_lut + 2, 0x00002400);
614 		/* Lock the lut table */
615 		out_be32(qspi_key, 0x5af05af0);
616 		out_be32(qspi_key + 1, 0x00000001);
617 	} else {
618 		/* That means the register is LE */
619 		out_le32(qspi_key, 0x5af05af0);
620 		/* Unlock the lut table */
621 		out_le32(qspi_key + 1, 0x00000002);
622 		out_le32(qspi_lut, 0x0820040c);
623 		out_le32(qspi_lut + 1, 0x1c080c08);
624 		out_le32(qspi_lut + 2, 0x00002400);
625 		/* Lock the lut table */
626 		out_le32(qspi_key, 0x5af05af0);
627 		out_le32(qspi_key + 1, 0x00000001);
628 	}
629 
630 	return 0;
631 }
632 #endif
633 
634 #ifdef CONFIG_BOARD_LATE_INIT
635 int board_late_init(void)
636 {
637 #ifdef CONFIG_SCSI_AHCI_PLAT
638 	sata_init();
639 #endif
640 #ifdef CONFIG_CHAIN_OF_TRUST
641 	fsl_setenv_chain_of_trust();
642 #endif
643 #ifdef CONFIG_QSPI_AHB_INIT
644 	qspi_ahb_init();
645 #endif
646 
647 	return 0;
648 }
649 #endif
650