1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2014-2015 Freescale Semiconductor
4  */
5 
6 #include <common.h>
7 #include <fsl_immap.h>
8 #include <fsl_ifc.h>
9 #include <asm/arch/fsl_serdes.h>
10 #include <asm/arch/soc.h>
11 #include <asm/io.h>
12 #include <asm/global_data.h>
13 #include <asm/arch-fsl-layerscape/config.h>
14 #include <asm/arch-fsl-layerscape/ns_access.h>
15 #include <asm/arch-fsl-layerscape/fsl_icid.h>
16 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
17 #include <fsl_csu.h>
18 #endif
19 #ifdef CONFIG_SYS_FSL_DDR
20 #include <fsl_ddr_sdram.h>
21 #include <fsl_ddr.h>
22 #endif
23 #ifdef CONFIG_CHAIN_OF_TRUST
24 #include <fsl_validate.h>
25 #endif
26 #include <fsl_immap.h>
27 
28 bool soc_has_dp_ddr(void)
29 {
30 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
31 	u32 svr = gur_in32(&gur->svr);
32 
33 	/* LS2085A, LS2088A, LS2048A has DP_DDR */
34 	if ((SVR_SOC_VER(svr) == SVR_LS2085A) ||
35 	    (SVR_SOC_VER(svr) == SVR_LS2088A) ||
36 	    (SVR_SOC_VER(svr) == SVR_LS2048A))
37 		return true;
38 
39 	return false;
40 }
41 
42 bool soc_has_aiop(void)
43 {
44 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
45 	u32 svr = gur_in32(&gur->svr);
46 
47 	/* LS2085A has AIOP */
48 	if (SVR_SOC_VER(svr) == SVR_LS2085A)
49 		return true;
50 
51 	return false;
52 }
53 
54 static inline void set_usb_txvreftune(u32 __iomem *scfg, u32 offset)
55 {
56 	scfg_clrsetbits32(scfg + offset / 4,
57 			0xF << 6,
58 			SCFG_USB_TXVREFTUNE << 6);
59 }
60 
61 static void erratum_a009008(void)
62 {
63 #ifdef CONFIG_SYS_FSL_ERRATUM_A009008
64 	u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
65 
66 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) || \
67 	defined(CONFIG_ARCH_LS1012A)
68 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB1);
69 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
70 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB2);
71 	set_usb_txvreftune(scfg, SCFG_USB3PRM1CR_USB3);
72 #endif
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 	defined(CONFIG_ARCH_LS1012A)
92 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB1);
93 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
94 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB2);
95 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR_USB3);
96 #endif
97 #elif defined(CONFIG_ARCH_LS2080A)
98 	set_usb_sqrxtune(scfg, SCFG_USB3PRM1CR);
99 #endif
100 #endif /* CONFIG_SYS_FSL_ERRATUM_A009798 */
101 }
102 
103 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) || \
104 	defined(CONFIG_ARCH_LS1012A)
105 static inline void set_usb_pcstxswingfull(u32 __iomem *scfg, u32 offset)
106 {
107 	scfg_clrsetbits32(scfg + offset / 4,
108 			0x7F << 9,
109 			SCFG_USB_PCSTXSWINGFULL << 9);
110 }
111 #endif
112 
113 static void erratum_a008997(void)
114 {
115 #ifdef CONFIG_SYS_FSL_ERRATUM_A008997
116 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) || \
117 	defined(CONFIG_ARCH_LS1012A)
118 	u32 __iomem *scfg = (u32 __iomem *)SCFG_BASE;
119 
120 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB1);
121 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
122 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB2);
123 	set_usb_pcstxswingfull(scfg, SCFG_USB3PRM2CR_USB3);
124 #endif
125 #endif
126 #endif /* CONFIG_SYS_FSL_ERRATUM_A008997 */
127 }
128 
129 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) || \
130 	defined(CONFIG_ARCH_LS1012A)
131 
132 #define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy)	\
133 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1);	\
134 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2);	\
135 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3);	\
136 	out_be16((phy) + SCFG_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)
137 
138 #elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
139 
140 #define PROGRAM_USB_PHY_RX_OVRD_IN_HI(phy)	\
141 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_1); \
142 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_2); \
143 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_3); \
144 	out_le16((phy) + DCSR_USB_PHY_RX_OVRD_IN_HI, USB_PHY_RX_EQ_VAL_4)
145 
146 #endif
147 
148 static void erratum_a009007(void)
149 {
150 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) || \
151 	defined(CONFIG_ARCH_LS1012A)
152 	void __iomem *usb_phy = (void __iomem *)SCFG_USB_PHY1;
153 
154 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
155 #if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A)
156 	usb_phy = (void __iomem *)SCFG_USB_PHY2;
157 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
158 
159 	usb_phy = (void __iomem *)SCFG_USB_PHY3;
160 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(usb_phy);
161 #endif
162 #elif defined(CONFIG_ARCH_LS2080A) || defined(CONFIG_ARCH_LS1088A)
163 	void __iomem *dcsr = (void __iomem *)DCSR_BASE;
164 
165 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY1);
166 	PROGRAM_USB_PHY_RX_OVRD_IN_HI(dcsr + DCSR_USB_PHY2);
167 #endif /* CONFIG_SYS_FSL_ERRATUM_A009007 */
168 }
169 
170 #if defined(CONFIG_FSL_LSCH3)
171 /*
172  * This erratum requires setting a value to eddrtqcr1 to
173  * optimal the DDR performance.
174  */
175 static void erratum_a008336(void)
176 {
177 #ifdef CONFIG_SYS_FSL_ERRATUM_A008336
178 	u32 *eddrtqcr1;
179 
180 #ifdef CONFIG_SYS_FSL_DCSR_DDR_ADDR
181 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR_ADDR + 0x800;
182 	if (fsl_ddr_get_version(0) == 0x50200)
183 		out_le32(eddrtqcr1, 0x63b30002);
184 #endif
185 #ifdef CONFIG_SYS_FSL_DCSR_DDR2_ADDR
186 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR2_ADDR + 0x800;
187 	if (fsl_ddr_get_version(0) == 0x50200)
188 		out_le32(eddrtqcr1, 0x63b30002);
189 #endif
190 #endif
191 }
192 
193 /*
194  * This erratum requires a register write before being Memory
195  * controller 3 being enabled.
196  */
197 static void erratum_a008514(void)
198 {
199 #ifdef CONFIG_SYS_FSL_ERRATUM_A008514
200 	u32 *eddrtqcr1;
201 
202 #ifdef CONFIG_SYS_FSL_DCSR_DDR3_ADDR
203 	eddrtqcr1 = (void *)CONFIG_SYS_FSL_DCSR_DDR3_ADDR + 0x800;
204 	out_le32(eddrtqcr1, 0x63b20002);
205 #endif
206 #endif
207 }
208 #ifdef CONFIG_SYS_FSL_ERRATUM_A009635
209 #define PLATFORM_CYCLE_ENV_VAR	"a009635_interval_val"
210 
211 static unsigned long get_internval_val_mhz(void)
212 {
213 	char *interval = env_get(PLATFORM_CYCLE_ENV_VAR);
214 	/*
215 	 *  interval is the number of platform cycles(MHz) between
216 	 *  wake up events generated by EPU.
217 	 */
218 	ulong interval_mhz = get_bus_freq(0) / (1000 * 1000);
219 
220 	if (interval)
221 		interval_mhz = simple_strtoul(interval, NULL, 10);
222 
223 	return interval_mhz;
224 }
225 
226 void erratum_a009635(void)
227 {
228 	u32 val;
229 	unsigned long interval_mhz = get_internval_val_mhz();
230 
231 	if (!interval_mhz)
232 		return;
233 
234 	val = in_le32(DCSR_CGACRE5);
235 	writel(val | 0x00000200, DCSR_CGACRE5);
236 
237 	val = in_le32(EPU_EPCMPR5);
238 	writel(interval_mhz, EPU_EPCMPR5);
239 	val = in_le32(EPU_EPCCR5);
240 	writel(val | 0x82820000, EPU_EPCCR5);
241 	val = in_le32(EPU_EPSMCR5);
242 	writel(val | 0x002f0000, EPU_EPSMCR5);
243 	val = in_le32(EPU_EPECR5);
244 	writel(val | 0x20000000, EPU_EPECR5);
245 	val = in_le32(EPU_EPGCR);
246 	writel(val | 0x80000000, EPU_EPGCR);
247 }
248 #endif	/* CONFIG_SYS_FSL_ERRATUM_A009635 */
249 
250 static void erratum_rcw_src(void)
251 {
252 #if defined(CONFIG_SPL) && defined(CONFIG_NAND_BOOT)
253 	u32 __iomem *dcfg_ccsr = (u32 __iomem *)DCFG_BASE;
254 	u32 __iomem *dcfg_dcsr = (u32 __iomem *)DCFG_DCSR_BASE;
255 	u32 val;
256 
257 	val = in_le32(dcfg_ccsr + DCFG_PORSR1 / 4);
258 	val &= ~DCFG_PORSR1_RCW_SRC;
259 	val |= DCFG_PORSR1_RCW_SRC_NOR;
260 	out_le32(dcfg_dcsr + DCFG_DCSR_PORCR1 / 4, val);
261 #endif
262 }
263 
264 #define I2C_DEBUG_REG 0x6
265 #define I2C_GLITCH_EN 0x8
266 /*
267  * This erratum requires setting glitch_en bit to enable
268  * digital glitch filter to improve clock stability.
269  */
270 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203
271 static void erratum_a009203(void)
272 {
273 #ifdef CONFIG_SYS_I2C
274 	u8 __iomem *ptr;
275 #ifdef I2C1_BASE_ADDR
276 	ptr = (u8 __iomem *)(I2C1_BASE_ADDR + I2C_DEBUG_REG);
277 
278 	writeb(I2C_GLITCH_EN, ptr);
279 #endif
280 #ifdef I2C2_BASE_ADDR
281 	ptr = (u8 __iomem *)(I2C2_BASE_ADDR + I2C_DEBUG_REG);
282 
283 	writeb(I2C_GLITCH_EN, ptr);
284 #endif
285 #ifdef I2C3_BASE_ADDR
286 	ptr = (u8 __iomem *)(I2C3_BASE_ADDR + I2C_DEBUG_REG);
287 
288 	writeb(I2C_GLITCH_EN, ptr);
289 #endif
290 #ifdef I2C4_BASE_ADDR
291 	ptr = (u8 __iomem *)(I2C4_BASE_ADDR + I2C_DEBUG_REG);
292 
293 	writeb(I2C_GLITCH_EN, ptr);
294 #endif
295 #endif
296 }
297 #endif
298 
299 void bypass_smmu(void)
300 {
301 	u32 val;
302 	val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
303 	out_le32(SMMU_SCR0, val);
304 	val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
305 	out_le32(SMMU_NSCR0, val);
306 }
307 void fsl_lsch3_early_init_f(void)
308 {
309 	erratum_rcw_src();
310 #ifdef CONFIG_FSL_IFC
311 	init_early_memctl_regs();	/* tighten IFC timing */
312 #endif
313 #ifdef CONFIG_SYS_FSL_ERRATUM_A009203
314 	erratum_a009203();
315 #endif
316 	erratum_a008514();
317 	erratum_a008336();
318 	erratum_a009008();
319 	erratum_a009798();
320 	erratum_a008997();
321 	erratum_a009007();
322 #ifdef CONFIG_CHAIN_OF_TRUST
323 	/* In case of Secure Boot, the IBR configures the SMMU
324 	* to allow only Secure transactions.
325 	* SMMU must be reset in bypass mode.
326 	* Set the ClientPD bit and Clear the USFCFG Bit
327 	*/
328 	if (fsl_check_boot_mode_secure() == 1)
329 		bypass_smmu();
330 #endif
331 }
332 
333 /* Get VDD in the unit mV from voltage ID */
334 int get_core_volt_from_fuse(void)
335 {
336 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
337 	int vdd;
338 	u32 fusesr;
339 	u8 vid;
340 
341 	/* get the voltage ID from fuse status register */
342 	fusesr = in_le32(&gur->dcfg_fusesr);
343 	debug("%s: fusesr = 0x%x\n", __func__, fusesr);
344 	vid = (fusesr >> FSL_CHASSIS3_DCFG_FUSESR_ALTVID_SHIFT) &
345 		FSL_CHASSIS3_DCFG_FUSESR_ALTVID_MASK;
346 	if ((vid == 0) || (vid == FSL_CHASSIS3_DCFG_FUSESR_ALTVID_MASK)) {
347 		vid = (fusesr >> FSL_CHASSIS3_DCFG_FUSESR_VID_SHIFT) &
348 			FSL_CHASSIS3_DCFG_FUSESR_VID_MASK;
349 	}
350 	debug("%s: VID = 0x%x\n", __func__, vid);
351 	switch (vid) {
352 	case 0x00: /* VID isn't supported */
353 		vdd = -EINVAL;
354 		debug("%s: The VID feature is not supported\n", __func__);
355 		break;
356 	case 0x08: /* 0.9V silicon */
357 		vdd = 900;
358 		break;
359 	case 0x10: /* 1.0V silicon */
360 		vdd = 1000;
361 		break;
362 	default:  /* Other core voltage */
363 		vdd = -EINVAL;
364 		debug("%s: The VID(%x) isn't supported\n", __func__, vid);
365 		break;
366 	}
367 	debug("%s: The required minimum volt of CORE is %dmV\n", __func__, vdd);
368 
369 	return vdd;
370 }
371 
372 #elif defined(CONFIG_FSL_LSCH2)
373 
374 static void erratum_a009929(void)
375 {
376 #ifdef CONFIG_SYS_FSL_ERRATUM_A009929
377 	struct ccsr_gur *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
378 	u32 __iomem *dcsr_cop_ccp = (void *)CONFIG_SYS_DCSR_COP_CCP_ADDR;
379 	u32 rstrqmr1 = gur_in32(&gur->rstrqmr1);
380 
381 	rstrqmr1 |= 0x00000400;
382 	gur_out32(&gur->rstrqmr1, rstrqmr1);
383 	writel(0x01000000, dcsr_cop_ccp);
384 #endif
385 }
386 
387 /*
388  * This erratum requires setting a value to eddrtqcr1 to optimal
389  * the DDR performance. The eddrtqcr1 register is in SCFG space
390  * of LS1043A and the offset is 0x157_020c.
391  */
392 #if defined(CONFIG_SYS_FSL_ERRATUM_A009660) \
393 	&& defined(CONFIG_SYS_FSL_ERRATUM_A008514)
394 #error A009660 and A008514 can not be both enabled.
395 #endif
396 
397 static void erratum_a009660(void)
398 {
399 #ifdef CONFIG_SYS_FSL_ERRATUM_A009660
400 	u32 *eddrtqcr1 = (void *)CONFIG_SYS_FSL_SCFG_ADDR + 0x20c;
401 	out_be32(eddrtqcr1, 0x63b20042);
402 #endif
403 }
404 
405 static void erratum_a008850_early(void)
406 {
407 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850
408 	/* part 1 of 2 */
409 	struct ccsr_cci400 __iomem *cci = (void *)(CONFIG_SYS_IMMR +
410 						CONFIG_SYS_CCI400_OFFSET);
411 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
412 
413 	/* Skip if running at lower exception level */
414 	if (current_el() < 3)
415 		return;
416 
417 	/* disables propagation of barrier transactions to DDRC from CCI400 */
418 	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER);
419 
420 	/* disable the re-ordering in DDRC */
421 	ddr_out32(&ddr->eor, DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS);
422 #endif
423 }
424 
425 void erratum_a008850_post(void)
426 {
427 #ifdef CONFIG_SYS_FSL_ERRATUM_A008850
428 	/* part 2 of 2 */
429 	struct ccsr_cci400 __iomem *cci = (void *)(CONFIG_SYS_IMMR +
430 						CONFIG_SYS_CCI400_OFFSET);
431 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
432 	u32 tmp;
433 
434 	/* Skip if running at lower exception level */
435 	if (current_el() < 3)
436 		return;
437 
438 	/* enable propagation of barrier transactions to DDRC from CCI400 */
439 	out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
440 
441 	/* enable the re-ordering in DDRC */
442 	tmp = ddr_in32(&ddr->eor);
443 	tmp &= ~(DDR_EOR_RD_REOD_DIS | DDR_EOR_WD_REOD_DIS);
444 	ddr_out32(&ddr->eor, tmp);
445 #endif
446 }
447 
448 #ifdef CONFIG_SYS_FSL_ERRATUM_A010315
449 void erratum_a010315(void)
450 {
451 	int i;
452 
453 	for (i = PCIE1; i <= PCIE4; i++)
454 		if (!is_serdes_configured(i)) {
455 			debug("PCIe%d: disabled all R/W permission!\n", i);
456 			set_pcie_ns_access(i, 0);
457 		}
458 }
459 #endif
460 
461 static void erratum_a010539(void)
462 {
463 #if defined(CONFIG_SYS_FSL_ERRATUM_A010539) && defined(CONFIG_QSPI_BOOT)
464 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
465 	u32 porsr1;
466 
467 	porsr1 = in_be32(&gur->porsr1);
468 	porsr1 &= ~FSL_CHASSIS2_CCSR_PORSR1_RCW_MASK;
469 	out_be32((void *)(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_PORCR1),
470 		 porsr1);
471 	out_be32((void *)(CONFIG_SYS_FSL_SCFG_ADDR + 0x1a8), 0xffffffff);
472 #endif
473 }
474 
475 /* Get VDD in the unit mV from voltage ID */
476 int get_core_volt_from_fuse(void)
477 {
478 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
479 	int vdd;
480 	u32 fusesr;
481 	u8 vid;
482 
483 	fusesr = in_be32(&gur->dcfg_fusesr);
484 	debug("%s: fusesr = 0x%x\n", __func__, fusesr);
485 	vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_ALTVID_SHIFT) &
486 		FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK;
487 	if ((vid == 0) || (vid == FSL_CHASSIS2_DCFG_FUSESR_ALTVID_MASK)) {
488 		vid = (fusesr >> FSL_CHASSIS2_DCFG_FUSESR_VID_SHIFT) &
489 			FSL_CHASSIS2_DCFG_FUSESR_VID_MASK;
490 	}
491 	debug("%s: VID = 0x%x\n", __func__, vid);
492 	switch (vid) {
493 	case 0x00: /* VID isn't supported */
494 		vdd = -EINVAL;
495 		debug("%s: The VID feature is not supported\n", __func__);
496 		break;
497 	case 0x08: /* 0.9V silicon */
498 		vdd = 900;
499 		break;
500 	case 0x10: /* 1.0V silicon */
501 		vdd = 1000;
502 		break;
503 	default:  /* Other core voltage */
504 		vdd = -EINVAL;
505 		printf("%s: The VID(%x) isn't supported\n", __func__, vid);
506 		break;
507 	}
508 	debug("%s: The required minimum volt of CORE is %dmV\n", __func__, vdd);
509 
510 	return vdd;
511 }
512 
513 __weak int board_switch_core_volt(u32 vdd)
514 {
515 	return 0;
516 }
517 
518 static int setup_core_volt(u32 vdd)
519 {
520 	return board_setup_core_volt(vdd);
521 }
522 
523 #ifdef CONFIG_SYS_FSL_DDR
524 static void ddr_enable_0v9_volt(bool en)
525 {
526 	struct ccsr_ddr __iomem *ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
527 	u32 tmp;
528 
529 	tmp = ddr_in32(&ddr->ddr_cdr1);
530 
531 	if (en)
532 		tmp |= DDR_CDR1_V0PT9_EN;
533 	else
534 		tmp &= ~DDR_CDR1_V0PT9_EN;
535 
536 	ddr_out32(&ddr->ddr_cdr1, tmp);
537 }
538 #endif
539 
540 int setup_chip_volt(void)
541 {
542 	int vdd;
543 
544 	vdd = get_core_volt_from_fuse();
545 	/* Nothing to do for silicons doesn't support VID */
546 	if (vdd < 0)
547 		return vdd;
548 
549 	if (setup_core_volt(vdd))
550 		printf("%s: Switch core VDD to %dmV failed\n", __func__, vdd);
551 #ifdef CONFIG_SYS_HAS_SERDES
552 	if (setup_serdes_volt(vdd))
553 		printf("%s: Switch SVDD to %dmV failed\n", __func__, vdd);
554 #endif
555 
556 #ifdef CONFIG_SYS_FSL_DDR
557 	if (vdd == 900)
558 		ddr_enable_0v9_volt(true);
559 #endif
560 
561 	return 0;
562 }
563 
564 #ifdef CONFIG_FSL_PFE
565 void init_pfe_scfg_dcfg_regs(void)
566 {
567 	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
568 	u32 ecccr2;
569 
570 	out_be32(&scfg->pfeasbcr,
571 		 in_be32(&scfg->pfeasbcr) | SCFG_PFEASBCR_AWCACHE0);
572 	out_be32(&scfg->pfebsbcr,
573 		 in_be32(&scfg->pfebsbcr) | SCFG_PFEASBCR_AWCACHE0);
574 
575 	/* CCI-400 QoS settings for PFE */
576 	out_be32(&scfg->wr_qos1, (unsigned int)(SCFG_WR_QOS1_PFE1_QOS
577 		 | SCFG_WR_QOS1_PFE2_QOS));
578 	out_be32(&scfg->rd_qos1, (unsigned int)(SCFG_RD_QOS1_PFE1_QOS
579 		 | SCFG_RD_QOS1_PFE2_QOS));
580 
581 	ecccr2 = in_be32(CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_ECCCR2);
582 	out_be32((void *)CONFIG_SYS_DCSR_DCFG_ADDR + DCFG_DCSR_ECCCR2,
583 		 ecccr2 | (unsigned int)DISABLE_PFE_ECC);
584 }
585 #endif
586 
587 void fsl_lsch2_early_init_f(void)
588 {
589 	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)(CONFIG_SYS_IMMR +
590 					CONFIG_SYS_CCI400_OFFSET);
591 	struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR;
592 
593 #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
594 	enable_layerscape_ns_access();
595 #endif
596 
597 #ifdef CONFIG_FSL_IFC
598 	init_early_memctl_regs();	/* tighten IFC timing */
599 #endif
600 
601 #if defined(CONFIG_FSL_QSPI) && !defined(CONFIG_QSPI_BOOT)
602 	out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
603 #endif
604 	/* Make SEC reads and writes snoopable */
605 	setbits_be32(&scfg->snpcnfgcr, SCFG_SNPCNFGCR_SECRDSNP |
606 		     SCFG_SNPCNFGCR_SECWRSNP |
607 		     SCFG_SNPCNFGCR_SATARDSNP |
608 		     SCFG_SNPCNFGCR_SATAWRSNP);
609 
610 	/*
611 	 * Enable snoop requests and DVM message requests for
612 	 * Slave insterface S4 (A53 core cluster)
613 	 */
614 	if (current_el() == 3) {
615 		out_le32(&cci->slave[4].snoop_ctrl,
616 			 CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
617 	}
618 
619 	/*
620 	 * Program Central Security Unit (CSU) to grant access
621 	 * permission for USB 2.0 controller
622 	 */
623 #if defined(CONFIG_ARCH_LS1012A) && defined(CONFIG_USB_EHCI_FSL)
624 	if (current_el() == 3)
625 		set_devices_ns_access(CSU_CSLX_USB_2, CSU_ALL_RW);
626 #endif
627 	/* Erratum */
628 	erratum_a008850_early(); /* part 1 of 2 */
629 	erratum_a009929();
630 	erratum_a009660();
631 	erratum_a010539();
632 	erratum_a009008();
633 	erratum_a009798();
634 	erratum_a008997();
635 	erratum_a009007();
636 
637 #ifdef CONFIG_ARCH_LS1046A
638 	set_icids();
639 #endif
640 }
641 #endif
642 
643 #ifdef CONFIG_QSPI_AHB_INIT
644 /* Enable 4bytes address support and fast read */
645 int qspi_ahb_init(void)
646 {
647 	u32 *qspi_lut, lut_key, *qspi_key;
648 
649 	qspi_key = (void *)SYS_FSL_QSPI_ADDR + 0x300;
650 	qspi_lut = (void *)SYS_FSL_QSPI_ADDR + 0x310;
651 
652 	lut_key = in_be32(qspi_key);
653 
654 	if (lut_key == 0x5af05af0) {
655 		/* That means the register is BE */
656 		out_be32(qspi_key, 0x5af05af0);
657 		/* Unlock the lut table */
658 		out_be32(qspi_key + 1, 0x00000002);
659 		out_be32(qspi_lut, 0x0820040c);
660 		out_be32(qspi_lut + 1, 0x1c080c08);
661 		out_be32(qspi_lut + 2, 0x00002400);
662 		/* Lock the lut table */
663 		out_be32(qspi_key, 0x5af05af0);
664 		out_be32(qspi_key + 1, 0x00000001);
665 	} else {
666 		/* That means the register is LE */
667 		out_le32(qspi_key, 0x5af05af0);
668 		/* Unlock the lut table */
669 		out_le32(qspi_key + 1, 0x00000002);
670 		out_le32(qspi_lut, 0x0820040c);
671 		out_le32(qspi_lut + 1, 0x1c080c08);
672 		out_le32(qspi_lut + 2, 0x00002400);
673 		/* Lock the lut table */
674 		out_le32(qspi_key, 0x5af05af0);
675 		out_le32(qspi_key + 1, 0x00000001);
676 	}
677 
678 	return 0;
679 }
680 #endif
681 
682 #ifdef CONFIG_BOARD_LATE_INIT
683 int board_late_init(void)
684 {
685 #ifdef CONFIG_CHAIN_OF_TRUST
686 	fsl_setenv_chain_of_trust();
687 #endif
688 #ifdef CONFIG_QSPI_AHB_INIT
689 	qspi_ahb_init();
690 #endif
691 
692 	return 0;
693 }
694 #endif
695