1 /*
2  * Copyright 2014-2015 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 
7 #include <common.h>
8 #include <efi_loader.h>
9 #include <libfdt.h>
10 #include <fdt_support.h>
11 #include <phy.h>
12 #ifdef CONFIG_FSL_LSCH3
13 #include <asm/arch/fdt.h>
14 #endif
15 #ifdef CONFIG_FSL_ESDHC
16 #include <fsl_esdhc.h>
17 #endif
18 #ifdef CONFIG_SYS_DPAA_FMAN
19 #include <fsl_fman.h>
20 #endif
21 #ifdef CONFIG_MP
22 #include <asm/arch/mp.h>
23 #endif
24 #include <fsl_sec.h>
25 #include <asm/arch-fsl-layerscape/soc.h>
26 #ifdef CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT
27 #include <asm/armv8/sec_firmware.h>
28 #endif
29 
30 int fdt_fixup_phy_connection(void *blob, int offset, phy_interface_t phyc)
31 {
32 	return fdt_setprop_string(blob, offset, "phy-connection-type",
33 					 phy_string_for_interface(phyc));
34 }
35 
36 #ifdef CONFIG_MP
37 void ft_fixup_cpu(void *blob)
38 {
39 	int off;
40 	__maybe_unused u64 spin_tbl_addr = (u64)get_spin_tbl_addr();
41 	fdt32_t *reg;
42 	int addr_cells;
43 	u64 val, core_id;
44 	size_t *boot_code_size = &(__secondary_boot_code_size);
45 #if defined(CONFIG_ARMV8_SEC_FIRMWARE_SUPPORT) && \
46 	defined(CONFIG_SEC_FIRMWARE_ARMV8_PSCI)
47 	int node;
48 	u32 psci_ver;
49 
50 	/* Check the psci version to determine if the psci is supported */
51 	psci_ver = sec_firmware_support_psci_version();
52 	if (psci_ver == 0xffffffff) {
53 		/* remove psci DT node */
54 		node = fdt_path_offset(blob, "/psci");
55 		if (node >= 0)
56 			goto remove_psci_node;
57 
58 		node = fdt_node_offset_by_compatible(blob, -1, "arm,psci");
59 		if (node >= 0)
60 			goto remove_psci_node;
61 
62 		node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-0.2");
63 		if (node >= 0)
64 			goto remove_psci_node;
65 
66 		node = fdt_node_offset_by_compatible(blob, -1, "arm,psci-1.0");
67 		if (node >= 0)
68 			goto remove_psci_node;
69 
70 remove_psci_node:
71 		if (node >= 0)
72 			fdt_del_node(blob, node);
73 	} else {
74 		return;
75 	}
76 #endif
77 	off = fdt_path_offset(blob, "/cpus");
78 	if (off < 0) {
79 		puts("couldn't find /cpus node\n");
80 		return;
81 	}
82 	of_bus_default_count_cells(blob, off, &addr_cells, NULL);
83 
84 	off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4);
85 	while (off != -FDT_ERR_NOTFOUND) {
86 		reg = (fdt32_t *)fdt_getprop(blob, off, "reg", 0);
87 		if (reg) {
88 			core_id = of_read_number(reg, addr_cells);
89 			if (core_id  == 0 || (is_core_online(core_id))) {
90 				val = spin_tbl_addr;
91 				val += id_to_core(core_id) *
92 				       SPIN_TABLE_ELEM_SIZE;
93 				val = cpu_to_fdt64(val);
94 				fdt_setprop_string(blob, off, "enable-method",
95 						   "spin-table");
96 				fdt_setprop(blob, off, "cpu-release-addr",
97 					    &val, sizeof(val));
98 			} else {
99 				debug("skipping offline core\n");
100 			}
101 		} else {
102 			puts("Warning: found cpu node without reg property\n");
103 		}
104 		off = fdt_node_offset_by_prop_value(blob, off, "device_type",
105 						    "cpu", 4);
106 	}
107 
108 	fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
109 			*boot_code_size);
110 #if defined(CONFIG_EFI_LOADER) && !defined(CONFIG_SPL_BUILD)
111 	efi_add_memory_map((uintptr_t)&secondary_boot_code,
112 			   ALIGN(*boot_code_size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
113 			   EFI_RESERVED_MEMORY_TYPE, false);
114 #endif
115 }
116 #endif
117 
118 void fsl_fdt_disable_usb(void *blob)
119 {
120 	int off;
121 	/*
122 	 * SYSCLK is used as a reference clock for USB. When the USB
123 	 * controller is used, SYSCLK must meet the additional requirement
124 	 * of 100 MHz.
125 	 */
126 	if (CONFIG_SYS_CLK_FREQ != 100000000) {
127 		off = fdt_node_offset_by_compatible(blob, -1, "snps,dwc3");
128 		while (off != -FDT_ERR_NOTFOUND) {
129 			fdt_status_disabled(blob, off);
130 			off = fdt_node_offset_by_compatible(blob, off,
131 							    "snps,dwc3");
132 		}
133 	}
134 }
135 
136 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
137 static void fdt_fixup_gic(void *blob)
138 {
139 	int offset, err;
140 	u64 reg[8];
141 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
142 	unsigned int val;
143 	struct ccsr_scfg __iomem *scfg = (void *)CONFIG_SYS_FSL_SCFG_ADDR;
144 	int align_64k = 0;
145 
146 	val = gur_in32(&gur->svr);
147 
148 	if (SVR_SOC_VER(val) != SVR_LS1043A) {
149 		align_64k = 1;
150 	} else if (SVR_REV(val) != REV1_0) {
151 		val = scfg_in32(&scfg->gic_align) & (0x01 << GIC_ADDR_BIT);
152 		if (!val)
153 			align_64k = 1;
154 	}
155 
156 	offset = fdt_subnode_offset(blob, 0, "interrupt-controller@1400000");
157 	if (offset < 0) {
158 		printf("WARNING: fdt_subnode_offset can't find node %s: %s\n",
159 		       "interrupt-controller@1400000", fdt_strerror(offset));
160 		return;
161 	}
162 
163 	/* Fixup gic node align with 64K */
164 	if (align_64k) {
165 		reg[0] = cpu_to_fdt64(GICD_BASE_64K);
166 		reg[1] = cpu_to_fdt64(GICD_SIZE_64K);
167 		reg[2] = cpu_to_fdt64(GICC_BASE_64K);
168 		reg[3] = cpu_to_fdt64(GICC_SIZE_64K);
169 		reg[4] = cpu_to_fdt64(GICH_BASE_64K);
170 		reg[5] = cpu_to_fdt64(GICH_SIZE_64K);
171 		reg[6] = cpu_to_fdt64(GICV_BASE_64K);
172 		reg[7] = cpu_to_fdt64(GICV_SIZE_64K);
173 	} else {
174 	/* Fixup gic node align with default */
175 		reg[0] = cpu_to_fdt64(GICD_BASE);
176 		reg[1] = cpu_to_fdt64(GICD_SIZE);
177 		reg[2] = cpu_to_fdt64(GICC_BASE);
178 		reg[3] = cpu_to_fdt64(GICC_SIZE);
179 		reg[4] = cpu_to_fdt64(GICH_BASE);
180 		reg[5] = cpu_to_fdt64(GICH_SIZE);
181 		reg[6] = cpu_to_fdt64(GICV_BASE);
182 		reg[7] = cpu_to_fdt64(GICV_SIZE);
183 	}
184 
185 	err = fdt_setprop(blob, offset, "reg", reg, sizeof(reg));
186 	if (err < 0) {
187 		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
188 		       "reg", "interrupt-controller@1400000",
189 		       fdt_strerror(err));
190 		return;
191 	}
192 
193 	return;
194 }
195 #endif
196 
197 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
198 static int _fdt_fixup_msi_node(void *blob, const char *name,
199 				  int irq_0, int irq_1, int rev)
200 {
201 	int err, offset, len;
202 	u32 tmp[4][3];
203 	void *p;
204 
205 	offset = fdt_path_offset(blob, name);
206 	if (offset < 0) {
207 		printf("WARNING: fdt_path_offset can't find path %s: %s\n",
208 		       name, fdt_strerror(offset));
209 		return 0;
210 	}
211 
212 	/*fixup the property of interrupts*/
213 
214 	tmp[0][0] = cpu_to_fdt32(0x0);
215 	tmp[0][1] = cpu_to_fdt32(irq_0);
216 	tmp[0][2] = cpu_to_fdt32(0x4);
217 
218 	if (rev > REV1_0) {
219 		tmp[1][0] = cpu_to_fdt32(0x0);
220 		tmp[1][1] = cpu_to_fdt32(irq_1);
221 		tmp[1][2] = cpu_to_fdt32(0x4);
222 		tmp[2][0] = cpu_to_fdt32(0x0);
223 		tmp[2][1] = cpu_to_fdt32(irq_1 + 1);
224 		tmp[2][2] = cpu_to_fdt32(0x4);
225 		tmp[3][0] = cpu_to_fdt32(0x0);
226 		tmp[3][1] = cpu_to_fdt32(irq_1 + 2);
227 		tmp[3][2] = cpu_to_fdt32(0x4);
228 		len = sizeof(tmp);
229 	} else {
230 		len = sizeof(tmp[0]);
231 	}
232 
233 	err = fdt_setprop(blob, offset, "interrupts", tmp, len);
234 	if (err < 0) {
235 		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
236 		       "interrupts", name, fdt_strerror(err));
237 		return 0;
238 	}
239 
240 	/*fixup the property of reg*/
241 	p = (char *)fdt_getprop(blob, offset, "reg", &len);
242 	if (!p) {
243 		printf("WARNING: fdt_getprop can't get %s from node %s\n",
244 		       "reg", name);
245 		return 0;
246 	}
247 
248 	memcpy((char *)tmp, p, len);
249 
250 	if (rev > REV1_0)
251 		*((u32 *)tmp + 3) = cpu_to_fdt32(0x1000);
252 	else
253 		*((u32 *)tmp + 3) = cpu_to_fdt32(0x8);
254 
255 	err = fdt_setprop(blob, offset, "reg", tmp, len);
256 	if (err < 0) {
257 		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
258 		       "reg", name, fdt_strerror(err));
259 		return 0;
260 	}
261 
262 	/*fixup the property of compatible*/
263 	if (rev > REV1_0)
264 		err = fdt_setprop_string(blob, offset, "compatible",
265 					 "fsl,ls1043a-v1.1-msi");
266 	else
267 		err = fdt_setprop_string(blob, offset, "compatible",
268 					 "fsl,ls1043a-msi");
269 	if (err < 0) {
270 		printf("WARNING: fdt_setprop can't set %s from node %s: %s\n",
271 		       "compatible", name, fdt_strerror(err));
272 		return 0;
273 	}
274 
275 	return 1;
276 }
277 
278 static int _fdt_fixup_pci_msi(void *blob, const char *name, int rev)
279 {
280 	int offset, len, err;
281 	void *p;
282 	int val;
283 	u32 tmp[4][8];
284 
285 	offset = fdt_path_offset(blob, name);
286 	if (offset < 0) {
287 		printf("WARNING: fdt_path_offset can't find path %s: %s\n",
288 		       name, fdt_strerror(offset));
289 		return 0;
290 	}
291 
292 	p = (char *)fdt_getprop(blob, offset, "interrupt-map", &len);
293 	if (!p || len != sizeof(tmp)) {
294 		printf("WARNING: fdt_getprop can't get %s from node %s\n",
295 		       "interrupt-map", name);
296 		return 0;
297 	}
298 
299 	memcpy((char *)tmp, p, len);
300 
301 	val = fdt32_to_cpu(tmp[0][6]);
302 	if (rev > REV1_0) {
303 		tmp[1][6] = cpu_to_fdt32(val + 1);
304 		tmp[2][6] = cpu_to_fdt32(val + 2);
305 		tmp[3][6] = cpu_to_fdt32(val + 3);
306 	} else {
307 		tmp[1][6] = cpu_to_fdt32(val);
308 		tmp[2][6] = cpu_to_fdt32(val);
309 		tmp[3][6] = cpu_to_fdt32(val);
310 	}
311 
312 	err = fdt_setprop(blob, offset, "interrupt-map", tmp, sizeof(tmp));
313 	if (err < 0) {
314 		printf("WARNING: fdt_setprop can't set %s from node %s: %s.\n",
315 		       "interrupt-map", name, fdt_strerror(err));
316 		return 0;
317 	}
318 	return 1;
319 }
320 
321 /* Fixup msi node for ls1043a rev1.1*/
322 
323 static void fdt_fixup_msi(void *blob)
324 {
325 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
326 	unsigned int rev;
327 
328 	rev = gur_in32(&gur->svr);
329 
330 	if (SVR_SOC_VER(rev) != SVR_LS1043A)
331 		return;
332 
333 	rev = SVR_REV(rev);
334 
335 	_fdt_fixup_msi_node(blob, "/soc/msi-controller1@1571000",
336 			    116, 111, rev);
337 	_fdt_fixup_msi_node(blob, "/soc/msi-controller2@1572000",
338 			    126, 121, rev);
339 	_fdt_fixup_msi_node(blob, "/soc/msi-controller3@1573000",
340 			    160, 155, rev);
341 
342 	_fdt_fixup_pci_msi(blob, "/soc/pcie@3400000", rev);
343 	_fdt_fixup_pci_msi(blob, "/soc/pcie@3500000", rev);
344 	_fdt_fixup_pci_msi(blob, "/soc/pcie@3600000", rev);
345 }
346 #endif
347 
348 void ft_cpu_setup(void *blob, bd_t *bd)
349 {
350 #ifdef CONFIG_FSL_LSCH2
351 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
352 	unsigned int svr = in_be32(&gur->svr);
353 
354 	/* delete crypto node if not on an E-processor */
355 	if (!IS_E_PROCESSOR(svr))
356 		fdt_fixup_crypto_node(blob, 0);
357 #if CONFIG_SYS_FSL_SEC_COMPAT >= 4
358 	else {
359 		ccsr_sec_t __iomem *sec;
360 
361 		sec = (void __iomem *)CONFIG_SYS_FSL_SEC_ADDR;
362 		fdt_fixup_crypto_node(blob, sec_in32(&sec->secvid_ms));
363 	}
364 #endif
365 #endif
366 
367 #ifdef CONFIG_MP
368 	ft_fixup_cpu(blob);
369 #endif
370 
371 #ifdef CONFIG_SYS_NS16550
372 	do_fixup_by_compat_u32(blob, "fsl,ns16550",
373 			       "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
374 #endif
375 
376 	do_fixup_by_compat_u32(blob, "fixed-clock",
377 			       "clock-frequency", CONFIG_SYS_CLK_FREQ, 1);
378 
379 #ifdef CONFIG_PCI
380 	ft_pci_setup(blob, bd);
381 #endif
382 
383 #ifdef CONFIG_FSL_ESDHC
384 	fdt_fixup_esdhc(blob, bd);
385 #endif
386 
387 #ifdef CONFIG_SYS_DPAA_FMAN
388 	fdt_fixup_fman_firmware(blob);
389 #endif
390 #ifndef CONFIG_LS1012A
391 	fsl_fdt_disable_usb(blob);
392 #endif
393 #ifdef CONFIG_HAS_FEATURE_GIC64K_ALIGN
394 	fdt_fixup_gic(blob);
395 #endif
396 #ifdef CONFIG_HAS_FEATURE_ENHANCED_MSI
397 	fdt_fixup_msi(blob);
398 #endif
399 }
400