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)
33 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
36 /* Release all the exclusive devices held by SPL before starting ATF */
37 ti_sci->ops.dev_ops.release_exclusive_devices(ti_sci);
40 * It is assumed that remoteproc device 1 is the corresponding
41 * Cortex-A core which runs ATF. Make sure DT reflects the same.
43 ret = rproc_dev_init(1);
45 panic("%s: ATF failed to initialize on rproc (%d)\n", __func__,
48 ret = rproc_load(1, spl_image->entry_point, 0x200);
50 panic("%s: ATF failed to load on rproc (%d)\n", __func__, ret);
52 /* Add an extra newline to differentiate the ATF logs from SPL */
53 printf("Starting ATF on ARM64 core...\n\n");
57 panic("%s: ATF failed to start on rproc (%d)\n", __func__, ret);
59 debug("Releasing resources...\n");
60 release_resources_for_core_shutdown();
62 debug("Finalizing core shutdown...\n");
68 #if defined(CONFIG_OF_LIBFDT)
69 int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
71 u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
72 struct ti_sci_handle *ti_sci = get_ti_sci_handle();
73 int ret, node, subnode, len, prev_node;
74 u32 range[4], addr, size;
75 const fdt32_t *sub_reg;
77 ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
78 msmc_size = msmc_end - msmc_start + 1;
79 debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
80 msmc_start, msmc_size);
82 /* find or create "msmc_sram node */
83 ret = fdt_path_offset(blob, parent_path);
87 node = fdt_find_or_add_subnode(blob, ret, node_name);
91 ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
95 reg[0] = cpu_to_fdt64(msmc_start);
96 reg[1] = cpu_to_fdt64(msmc_size);
97 ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
101 fdt_setprop_cell(blob, node, "#address-cells", 1);
102 fdt_setprop_cell(blob, node, "#size-cells", 1);
105 range[1] = cpu_to_fdt32(msmc_start >> 32);
106 range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
107 range[3] = cpu_to_fdt32(msmc_size);
108 ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
112 subnode = fdt_first_subnode(blob, node);
115 /* Look for invalid subnodes and delete them */
116 while (subnode >= 0) {
117 sub_reg = fdt_getprop(blob, subnode, "reg", &len);
118 addr = fdt_read_number(sub_reg, 1);
120 size = fdt_read_number(sub_reg, 1);
121 debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
122 subnode, addr, size);
123 if (addr + size > msmc_size ||
124 !strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
125 !strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
126 fdt_del_node(blob, subnode);
127 debug("%s: deleting subnode %d\n", __func__, subnode);
129 subnode = fdt_first_subnode(blob, node);
131 subnode = fdt_next_subnode(blob, prev_node);
134 subnode = fdt_next_subnode(blob, prev_node);