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Lokesh Vutlaa3501a42018-11-02 19:51:05 +05301// SPDX-License-Identifier: GPL-2.0+
2/*
3 * K3: Common Architecture initialization
4 *
5 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
6 * Lokesh Vutla <lokeshvutla@ti.com>
7 */
8
9#include <common.h>
Simon Glass9a3b4ce2019-12-28 10:45:01 -070010#include <cpu_func.h>
Lokesh Vutlaa3501a42018-11-02 19:51:05 +053011#include <spl.h>
12#include "common.h"
13#include <dm.h>
14#include <remoteproc.h>
Lokesh Vutla6ce424a2019-03-08 11:47:33 +053015#include <linux/soc/ti/ti_sci_protocol.h>
Lokesh Vutlaa9a84482019-03-08 11:47:34 +053016#include <fdt_support.h>
Andreas Dannenbergf9380a72019-06-07 19:24:42 +053017#include <asm/arch/sys_proto.h>
Lokesh Vutlaf8ca9122019-09-27 13:32:11 +053018#include <asm/hardware.h>
19#include <asm/io.h>
Keerthy3ab34bc2020-02-12 13:55:04 +053020#include <fs_loader.h>
21#include <fs.h>
22#include <env.h>
23#include <elf.h>
Lokesh Vutla6ce424a2019-03-08 11:47:33 +053024
25struct ti_sci_handle *get_ti_sci_handle(void)
26{
27 struct udevice *dev;
28 int ret;
29
Lokesh Vutlae69ffdb2019-09-27 13:32:15 +053030 ret = uclass_get_device_by_driver(UCLASS_FIRMWARE,
31 DM_GET_DRIVER(ti_sci), &dev);
Lokesh Vutla6ce424a2019-03-08 11:47:33 +053032 if (ret)
33 panic("Failed to get SYSFW (%d)\n", ret);
34
35 return (struct ti_sci_handle *)ti_sci_get_handle_from_sysfw(dev);
36}
Lokesh Vutlaa3501a42018-11-02 19:51:05 +053037
Lokesh Vutla6e44aeb2020-03-10 16:50:58 +053038void k3_sysfw_print_ver(void)
39{
40 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
41 char fw_desc[sizeof(ti_sci->version.firmware_description) + 1];
42
43 /*
44 * Output System Firmware version info. Note that since the
45 * 'firmware_description' field is not guaranteed to be zero-
46 * terminated we manually add a \0 terminator if needed. Further
47 * note that we intentionally no longer rely on the extended
48 * printf() formatter '%.*s' to not having to require a more
49 * full-featured printf() implementation.
50 */
51 strncpy(fw_desc, ti_sci->version.firmware_description,
52 sizeof(ti_sci->version.firmware_description));
53 fw_desc[sizeof(fw_desc) - 1] = '\0';
54
55 printf("SYSFW ABI: %d.%d (firmware rev 0x%04x '%s')\n",
56 ti_sci->version.abi_major, ti_sci->version.abi_minor,
57 ti_sci->version.firmware_revision, fw_desc);
58}
59
Andreas Dannenberge630afe12019-08-15 15:55:28 -050060DECLARE_GLOBAL_DATA_PTR;
61
62#ifdef CONFIG_K3_EARLY_CONS
63int early_console_init(void)
64{
65 struct udevice *dev;
66 int ret;
67
68 gd->baudrate = CONFIG_BAUDRATE;
69
70 ret = uclass_get_device_by_seq(UCLASS_SERIAL, CONFIG_K3_EARLY_CONS_IDX,
71 &dev);
72 if (ret) {
73 printf("Error getting serial dev for early console! (%d)\n",
74 ret);
75 return ret;
76 }
77
78 gd->cur_serial_dev = dev;
79 gd->flags |= GD_FLG_SERIAL_READY;
80 gd->have_console = 1;
81
82 return 0;
83}
84#endif
85
Lokesh Vutlaa3501a42018-11-02 19:51:05 +053086#ifdef CONFIG_SYS_K3_SPL_ATF
Keerthy3ab34bc2020-02-12 13:55:04 +053087
88void init_env(void)
89{
90#ifdef CONFIG_SPL_ENV_SUPPORT
91 char *part;
92
93 env_init();
94 env_relocate();
95 switch (spl_boot_device()) {
96 case BOOT_DEVICE_MMC2:
97 part = env_get("bootpart");
98 env_set("storage_interface", "mmc");
99 env_set("fw_dev_part", part);
100 break;
101 case BOOT_DEVICE_SPI:
102 env_set("storage_interface", "ubi");
103 env_set("fw_ubi_mtdpart", "UBI");
104 env_set("fw_ubi_volume", "UBI0");
105 break;
106 default:
107 printf("%s from device %u not supported!\n",
108 __func__, spl_boot_device());
109 return;
110 }
111#endif
112}
113
114#ifdef CONFIG_FS_LOADER
115int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
116{
117 struct udevice *fsdev;
118 char *name = NULL;
119 int size = 0;
120
121 *loadaddr = 0;
122#ifdef CONFIG_SPL_ENV_SUPPORT
123 switch (spl_boot_device()) {
124 case BOOT_DEVICE_MMC2:
125 name = env_get(name_fw);
126 *loadaddr = env_get_hex(name_loadaddr, *loadaddr);
127 break;
128 default:
129 printf("Loading rproc fw image from device %u not supported!\n",
130 spl_boot_device());
131 return 0;
132 }
133#endif
134 if (!*loadaddr)
135 return 0;
136
137 if (!uclass_get_device(UCLASS_FS_FIRMWARE_LOADER, 0, &fsdev)) {
138 size = request_firmware_into_buf(fsdev, name, (void *)*loadaddr,
139 0, 0);
140 }
141
142 return size;
143}
144#else
145int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
146{
147 return 0;
148}
149#endif
150
151__weak void start_non_linux_remote_cores(void)
152{
153}
154
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530155void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
156{
Keerthyd1542522020-02-12 13:55:06 +0530157 typedef void __noreturn (*image_entry_noargs_t)(void);
Lokesh Vutlac0669d22019-06-07 19:24:43 +0530158 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
Keerthyd1542522020-02-12 13:55:06 +0530159 u32 loadaddr = 0;
160 int ret, size;
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530161
Lokesh Vutlac0669d22019-06-07 19:24:43 +0530162 /* Release all the exclusive devices held by SPL before starting ATF */
163 ti_sci->ops.dev_ops.release_exclusive_devices(ti_sci);
164
Keerthy3ab34bc2020-02-12 13:55:04 +0530165 ret = rproc_init();
166 if (ret)
167 panic("rproc failed to be initialized (%d)\n", ret);
168
169 init_env();
170 start_non_linux_remote_cores();
Keerthyd1542522020-02-12 13:55:06 +0530171 size = load_firmware("name_mcur5f0_0fw", "addr_mcur5f0_0load",
172 &loadaddr);
173
Keerthy3ab34bc2020-02-12 13:55:04 +0530174
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530175 /*
176 * It is assumed that remoteproc device 1 is the corresponding
Andreas Dannenberg4a1fa522019-02-04 12:58:47 -0600177 * Cortex-A core which runs ATF. Make sure DT reflects the same.
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530178 */
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530179 ret = rproc_load(1, spl_image->entry_point, 0x200);
Andreas Dannenberg4a1fa522019-02-04 12:58:47 -0600180 if (ret)
181 panic("%s: ATF failed to load on rproc (%d)\n", __func__, ret);
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530182
Andreas Dannenberg4a1fa522019-02-04 12:58:47 -0600183 /* Add an extra newline to differentiate the ATF logs from SPL */
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530184 printf("Starting ATF on ARM64 core...\n\n");
185
186 ret = rproc_start(1);
Andreas Dannenberg4a1fa522019-02-04 12:58:47 -0600187 if (ret)
188 panic("%s: ATF failed to start on rproc (%d)\n", __func__, ret);
Keerthyd1542522020-02-12 13:55:06 +0530189 if (!(size > 0 && valid_elf_image(loadaddr))) {
190 debug("Shutting down...\n");
191 release_resources_for_core_shutdown();
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530192
Keerthyd1542522020-02-12 13:55:06 +0530193 while (1)
194 asm volatile("wfe");
195 }
Andreas Dannenbergf9380a72019-06-07 19:24:42 +0530196
Keerthyd1542522020-02-12 13:55:06 +0530197 image_entry_noargs_t image_entry =
198 (image_entry_noargs_t)load_elf_image_phdr(loadaddr);
199
200 image_entry();
Lokesh Vutlaa3501a42018-11-02 19:51:05 +0530201}
202#endif
Lokesh Vutlaa9a84482019-03-08 11:47:34 +0530203
204#if defined(CONFIG_OF_LIBFDT)
205int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
206{
207 u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
208 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
209 int ret, node, subnode, len, prev_node;
210 u32 range[4], addr, size;
211 const fdt32_t *sub_reg;
212
213 ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
214 msmc_size = msmc_end - msmc_start + 1;
215 debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
216 msmc_start, msmc_size);
217
218 /* find or create "msmc_sram node */
219 ret = fdt_path_offset(blob, parent_path);
220 if (ret < 0)
221 return ret;
222
223 node = fdt_find_or_add_subnode(blob, ret, node_name);
224 if (node < 0)
225 return node;
226
227 ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
228 if (ret < 0)
229 return ret;
230
231 reg[0] = cpu_to_fdt64(msmc_start);
232 reg[1] = cpu_to_fdt64(msmc_size);
233 ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
234 if (ret < 0)
235 return ret;
236
237 fdt_setprop_cell(blob, node, "#address-cells", 1);
238 fdt_setprop_cell(blob, node, "#size-cells", 1);
239
240 range[0] = 0;
241 range[1] = cpu_to_fdt32(msmc_start >> 32);
242 range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
243 range[3] = cpu_to_fdt32(msmc_size);
244 ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
245 if (ret < 0)
246 return ret;
247
248 subnode = fdt_first_subnode(blob, node);
249 prev_node = 0;
250
251 /* Look for invalid subnodes and delete them */
252 while (subnode >= 0) {
253 sub_reg = fdt_getprop(blob, subnode, "reg", &len);
254 addr = fdt_read_number(sub_reg, 1);
255 sub_reg++;
256 size = fdt_read_number(sub_reg, 1);
257 debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
258 subnode, addr, size);
259 if (addr + size > msmc_size ||
260 !strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
261 !strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
262 fdt_del_node(blob, subnode);
263 debug("%s: deleting subnode %d\n", __func__, subnode);
264 if (!prev_node)
265 subnode = fdt_first_subnode(blob, node);
266 else
267 subnode = fdt_next_subnode(blob, prev_node);
268 } else {
269 prev_node = subnode;
270 subnode = fdt_next_subnode(blob, prev_node);
271 }
272 }
273
274 return 0;
275}
Andrew F. Davis29c9db42019-09-17 17:15:40 -0400276
277int fdt_disable_node(void *blob, char *node_path)
278{
279 int offs;
280 int ret;
281
282 offs = fdt_path_offset(blob, node_path);
283 if (offs < 0) {
Andrew F. Davis28b90a42020-01-07 18:12:40 -0500284 printf("Node %s not found.\n", node_path);
285 return offs;
Andrew F. Davis29c9db42019-09-17 17:15:40 -0400286 }
287 ret = fdt_setprop_string(blob, offs, "status", "disabled");
288 if (ret < 0) {
289 printf("Could not add status property to node %s: %s\n",
290 node_path, fdt_strerror(ret));
291 return ret;
292 }
293 return 0;
294}
295
Lokesh Vutlaa9a84482019-03-08 11:47:34 +0530296#endif
Lokesh Vutlac2562d72019-06-13 10:29:42 +0530297
298#ifndef CONFIG_SYSRESET
299void reset_cpu(ulong ignored)
300{
301}
302#endif
Lokesh Vutlaf8ca9122019-09-27 13:32:11 +0530303
304#if defined(CONFIG_DISPLAY_CPUINFO)
305int print_cpuinfo(void)
306{
307 u32 soc, rev;
308 char *name;
309
Lokesh Vutlae7510d42020-04-17 13:43:53 +0530310 soc = (readl(CTRLMMR_WKUP_JTAG_ID) &
311 JTAG_ID_PARTNO_MASK) >> JTAG_ID_PARTNO_SHIFT;
Lokesh Vutlaf8ca9122019-09-27 13:32:11 +0530312 rev = (readl(CTRLMMR_WKUP_JTAG_ID) &
313 JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
314
315 printf("SoC: ");
316 switch (soc) {
Lokesh Vutlae7510d42020-04-17 13:43:53 +0530317 case AM65X:
318 name = "AM65x";
Lokesh Vutlaf8ca9122019-09-27 13:32:11 +0530319 break;
320 case J721E:
321 name = "J721E";
322 break;
323 default:
324 name = "Unknown Silicon";
325 };
326
Lokesh Vutlab9c268c2020-02-10 10:39:17 +0530327 printf("%s SR ", name);
Lokesh Vutlaf8ca9122019-09-27 13:32:11 +0530328 switch (rev) {
329 case REV_PG1_0:
330 name = "1.0";
331 break;
332 case REV_PG2_0:
333 name = "2.0";
334 break;
335 default:
336 name = "Unknown Revision";
337 };
338 printf("%s\n", name);
339
340 return 0;
341}
342#endif
Lokesh Vutlae938b222019-10-07 13:52:17 +0530343
344#ifdef CONFIG_ARM64
345void board_prep_linux(bootm_headers_t *images)
346{
347 debug("Linux kernel Image start = 0x%lx end = 0x%lx\n",
348 images->os.start, images->os.end);
349 __asm_flush_dcache_range(images->os.start,
350 ROUND(images->os.end,
351 CONFIG_SYS_CACHELINE_SIZE));
352}
353#endif
Lokesh Vutla40109f42019-12-31 15:49:55 +0530354
355#ifdef CONFIG_CPU_V7R
356void disable_linefill_optimization(void)
357{
358 u32 actlr;
359
360 /*
361 * On K3 devices there are 2 conditions where R5F can deadlock:
362 * 1.When software is performing series of store operations to
363 * cacheable write back/write allocate memory region and later
364 * on software execute barrier operation (DSB or DMB). R5F may
365 * hang at the barrier instruction.
366 * 2.When software is performing a mix of load and store operations
367 * within a tight loop and store operations are all writing to
368 * cacheable write back/write allocates memory regions, R5F may
369 * hang at one of the load instruction.
370 *
371 * To avoid the above two conditions disable linefill optimization
372 * inside Cortex R5F.
373 */
374 asm("mrc p15, 0, %0, c1, c0, 1" : "=r" (actlr));
375 actlr |= (1 << 13); /* Set DLFO bit */
376 asm("mcr p15, 0, %0, c1, c0, 1" : : "r" (actlr));
377}
378#endif
Andrew F. Davisea70da12020-01-10 14:35:21 -0500379
380void remove_fwl_configs(struct fwl_data *fwl_data, size_t fwl_data_size)
381{
382 struct ti_sci_msg_fwl_region region;
383 struct ti_sci_fwl_ops *fwl_ops;
384 struct ti_sci_handle *ti_sci;
385 size_t i, j;
386
387 ti_sci = get_ti_sci_handle();
388 fwl_ops = &ti_sci->ops.fwl_ops;
389 for (i = 0; i < fwl_data_size; i++) {
390 for (j = 0; j < fwl_data[i].regions; j++) {
391 region.fwl_id = fwl_data[i].fwl_id;
392 region.region = j;
393 region.n_permission_regs = 3;
394
395 fwl_ops->get_fwl_region(ti_sci, &region);
396
397 if (region.control != 0) {
398 pr_debug("Attempting to disable firewall %5d (%25s)\n",
399 region.fwl_id, fwl_data[i].name);
400 region.control = 0;
401
402 if (fwl_ops->set_fwl_region(ti_sci, &region))
403 pr_err("Could not disable firewall %5d (%25s)\n",
404 region.fwl_id, fwl_data[i].name);
405 }
406 }
407 }
408}