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>
13 #include <remoteproc.h>
14 #include <linux/soc/ti/ti_sci_protocol.h>
15 #include <fdt_support.h>
16 #include <asm/arch/sys_proto.h>
18 struct ti_sci_handle *get_ti_sci_handle(void)
23 ret = uclass_get_device_by_name(UCLASS_FIRMWARE, "dmsc", &dev);
25 panic("Failed to get SYSFW (%d)\n", ret);
27 return (struct ti_sci_handle *)ti_sci_get_handle_from_sysfw(dev);
30 #ifdef CONFIG_SYS_K3_SPL_ATF
31 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
36 * It is assumed that remoteproc device 1 is the corresponding
37 * Cortex-A core which runs ATF. Make sure DT reflects the same.
39 ret = rproc_dev_init(1);
41 panic("%s: ATF failed to initialize on rproc (%d)\n", __func__,
44 ret = rproc_load(1, spl_image->entry_point, 0x200);
46 panic("%s: ATF failed to load on rproc (%d)\n", __func__, ret);
48 /* Add an extra newline to differentiate the ATF logs from SPL */
49 printf("Starting ATF on ARM64 core...\n\n");
53 panic("%s: ATF failed to start on rproc (%d)\n", __func__, ret);
55 debug("Releasing resources...\n");
56 release_resources_for_core_shutdown();
58 debug("Finalizing core shutdown...\n");
64 #if defined(CONFIG_OF_LIBFDT)
65 int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
67 u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
68 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
69 int ret, node, subnode, len, prev_node;
70 u32 range[4], addr, size;
71 const fdt32_t *sub_reg;
73 ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
74 msmc_size = msmc_end - msmc_start + 1;
75 debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
76 msmc_start, msmc_size);
78 /* find or create "msmc_sram node */
79 ret = fdt_path_offset(blob, parent_path);
83 node = fdt_find_or_add_subnode(blob, ret, node_name);
87 ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
91 reg[0] = cpu_to_fdt64(msmc_start);
92 reg[1] = cpu_to_fdt64(msmc_size);
93 ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
97 fdt_setprop_cell(blob, node, "#address-cells", 1);
98 fdt_setprop_cell(blob, node, "#size-cells", 1);
101 range[1] = cpu_to_fdt32(msmc_start >> 32);
102 range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
103 range[3] = cpu_to_fdt32(msmc_size);
104 ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
108 subnode = fdt_first_subnode(blob, node);
111 /* Look for invalid subnodes and delete them */
112 while (subnode >= 0) {
113 sub_reg = fdt_getprop(blob, subnode, "reg", &len);
114 addr = fdt_read_number(sub_reg, 1);
116 size = fdt_read_number(sub_reg, 1);
117 debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
118 subnode, addr, size);
119 if (addr + size > msmc_size ||
120 !strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
121 !strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
122 fdt_del_node(blob, subnode);
123 debug("%s: deleting subnode %d\n", __func__, subnode);
125 subnode = fdt_first_subnode(blob, node);
127 subnode = fdt_next_subnode(blob, prev_node);
130 subnode = fdt_next_subnode(blob, prev_node);