1 // SPDX-License-Identifier: GPL-2.0+
3 * K3: Common Architecture initialization
5 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
6 * Lokesh Vutla <lokeshvutla@ti.com>
14 #include <remoteproc.h>
15 #include <linux/soc/ti/ti_sci_protocol.h>
16 #include <fdt_support.h>
17 #include <asm/arch/sys_proto.h>
18 #include <asm/hardware.h>
20 #include <fs_loader.h>
25 struct ti_sci_handle *get_ti_sci_handle(void)
30 ret = uclass_get_device_by_driver(UCLASS_FIRMWARE,
31 DM_GET_DRIVER(ti_sci), &dev);
33 panic("Failed to get SYSFW (%d)\n", ret);
35 return (struct ti_sci_handle *)ti_sci_get_handle_from_sysfw(dev);
38 DECLARE_GLOBAL_DATA_PTR;
40 #ifdef CONFIG_K3_EARLY_CONS
41 int early_console_init(void)
46 gd->baudrate = CONFIG_BAUDRATE;
48 ret = uclass_get_device_by_seq(UCLASS_SERIAL, CONFIG_K3_EARLY_CONS_IDX,
51 printf("Error getting serial dev for early console! (%d)\n",
56 gd->cur_serial_dev = dev;
57 gd->flags |= GD_FLG_SERIAL_READY;
64 #ifdef CONFIG_SYS_K3_SPL_ATF
68 #ifdef CONFIG_SPL_ENV_SUPPORT
73 switch (spl_boot_device()) {
74 case BOOT_DEVICE_MMC2:
75 part = env_get("bootpart");
76 env_set("storage_interface", "mmc");
77 env_set("fw_dev_part", part);
80 env_set("storage_interface", "ubi");
81 env_set("fw_ubi_mtdpart", "UBI");
82 env_set("fw_ubi_volume", "UBI0");
85 printf("%s from device %u not supported!\n",
86 __func__, spl_boot_device());
92 #ifdef CONFIG_FS_LOADER
93 int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
95 struct udevice *fsdev;
100 #ifdef CONFIG_SPL_ENV_SUPPORT
101 switch (spl_boot_device()) {
102 case BOOT_DEVICE_MMC2:
103 name = env_get(name_fw);
104 *loadaddr = env_get_hex(name_loadaddr, *loadaddr);
107 printf("Loading rproc fw image from device %u not supported!\n",
115 if (!uclass_get_device(UCLASS_FS_FIRMWARE_LOADER, 0, &fsdev)) {
116 size = request_firmware_into_buf(fsdev, name, (void *)*loadaddr,
123 int load_firmware(char *name_fw, char *name_loadaddr, u32 *loadaddr)
129 __weak void start_non_linux_remote_cores(void)
133 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
135 typedef void __noreturn (*image_entry_noargs_t)(void);
136 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
140 /* Release all the exclusive devices held by SPL before starting ATF */
141 ti_sci->ops.dev_ops.release_exclusive_devices(ti_sci);
145 panic("rproc failed to be initialized (%d)\n", ret);
148 start_non_linux_remote_cores();
149 size = load_firmware("name_mcur5f0_0fw", "addr_mcur5f0_0load",
154 * It is assumed that remoteproc device 1 is the corresponding
155 * Cortex-A core which runs ATF. Make sure DT reflects the same.
157 ret = rproc_load(1, spl_image->entry_point, 0x200);
159 panic("%s: ATF failed to load on rproc (%d)\n", __func__, ret);
161 /* Add an extra newline to differentiate the ATF logs from SPL */
162 printf("Starting ATF on ARM64 core...\n\n");
164 ret = rproc_start(1);
166 panic("%s: ATF failed to start on rproc (%d)\n", __func__, ret);
167 if (!(size > 0 && valid_elf_image(loadaddr))) {
168 debug("Shutting down...\n");
169 release_resources_for_core_shutdown();
175 image_entry_noargs_t image_entry =
176 (image_entry_noargs_t)load_elf_image_phdr(loadaddr);
182 #if defined(CONFIG_OF_LIBFDT)
183 int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
185 u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
186 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
187 int ret, node, subnode, len, prev_node;
188 u32 range[4], addr, size;
189 const fdt32_t *sub_reg;
191 ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
192 msmc_size = msmc_end - msmc_start + 1;
193 debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
194 msmc_start, msmc_size);
196 /* find or create "msmc_sram node */
197 ret = fdt_path_offset(blob, parent_path);
201 node = fdt_find_or_add_subnode(blob, ret, node_name);
205 ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
209 reg[0] = cpu_to_fdt64(msmc_start);
210 reg[1] = cpu_to_fdt64(msmc_size);
211 ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
215 fdt_setprop_cell(blob, node, "#address-cells", 1);
216 fdt_setprop_cell(blob, node, "#size-cells", 1);
219 range[1] = cpu_to_fdt32(msmc_start >> 32);
220 range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
221 range[3] = cpu_to_fdt32(msmc_size);
222 ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
226 subnode = fdt_first_subnode(blob, node);
229 /* Look for invalid subnodes and delete them */
230 while (subnode >= 0) {
231 sub_reg = fdt_getprop(blob, subnode, "reg", &len);
232 addr = fdt_read_number(sub_reg, 1);
234 size = fdt_read_number(sub_reg, 1);
235 debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
236 subnode, addr, size);
237 if (addr + size > msmc_size ||
238 !strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
239 !strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
240 fdt_del_node(blob, subnode);
241 debug("%s: deleting subnode %d\n", __func__, subnode);
243 subnode = fdt_first_subnode(blob, node);
245 subnode = fdt_next_subnode(blob, prev_node);
248 subnode = fdt_next_subnode(blob, prev_node);
255 int fdt_disable_node(void *blob, char *node_path)
260 offs = fdt_path_offset(blob, node_path);
262 printf("Node %s not found.\n", node_path);
265 ret = fdt_setprop_string(blob, offs, "status", "disabled");
267 printf("Could not add status property to node %s: %s\n",
268 node_path, fdt_strerror(ret));
276 #ifndef CONFIG_SYSRESET
277 void reset_cpu(ulong ignored)
282 #if defined(CONFIG_DISPLAY_CPUINFO)
283 int print_cpuinfo(void)
288 soc = (readl(CTRLMMR_WKUP_JTAG_DEVICE_ID) &
289 DEVICE_ID_FAMILY_MASK) >> DEVICE_ID_FAMILY_SHIFT;
290 rev = (readl(CTRLMMR_WKUP_JTAG_ID) &
291 JTAG_ID_VARIANT_MASK) >> JTAG_ID_VARIANT_SHIFT;
302 name = "Unknown Silicon";
305 printf("%s SR ", name);
314 name = "Unknown Revision";
316 printf("%s\n", name);
323 void board_prep_linux(bootm_headers_t *images)
325 debug("Linux kernel Image start = 0x%lx end = 0x%lx\n",
326 images->os.start, images->os.end);
327 __asm_flush_dcache_range(images->os.start,
328 ROUND(images->os.end,
329 CONFIG_SYS_CACHELINE_SIZE));
333 #ifdef CONFIG_CPU_V7R
334 void disable_linefill_optimization(void)
339 * On K3 devices there are 2 conditions where R5F can deadlock:
340 * 1.When software is performing series of store operations to
341 * cacheable write back/write allocate memory region and later
342 * on software execute barrier operation (DSB or DMB). R5F may
343 * hang at the barrier instruction.
344 * 2.When software is performing a mix of load and store operations
345 * within a tight loop and store operations are all writing to
346 * cacheable write back/write allocates memory regions, R5F may
347 * hang at one of the load instruction.
349 * To avoid the above two conditions disable linefill optimization
352 asm("mrc p15, 0, %0, c1, c0, 1" : "=r" (actlr));
353 actlr |= (1 << 13); /* Set DLFO bit */
354 asm("mcr p15, 0, %0, c1, c0, 1" : : "r" (actlr));
358 void remove_fwl_configs(struct fwl_data *fwl_data, size_t fwl_data_size)
360 struct ti_sci_msg_fwl_region region;
361 struct ti_sci_fwl_ops *fwl_ops;
362 struct ti_sci_handle *ti_sci;
365 ti_sci = get_ti_sci_handle();
366 fwl_ops = &ti_sci->ops.fwl_ops;
367 for (i = 0; i < fwl_data_size; i++) {
368 for (j = 0; j < fwl_data[i].regions; j++) {
369 region.fwl_id = fwl_data[i].fwl_id;
371 region.n_permission_regs = 3;
373 fwl_ops->get_fwl_region(ti_sci, ®ion);
375 if (region.control != 0) {
376 pr_debug("Attempting to disable firewall %5d (%25s)\n",
377 region.fwl_id, fwl_data[i].name);
380 if (fwl_ops->set_fwl_region(ti_sci, ®ion))
381 pr_err("Could not disable firewall %5d (%25s)\n",
382 region.fwl_id, fwl_data[i].name);