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2a61447414
Fix missing declaration of fdt_del_node_path() while compiling am625_fdt.c and
missing common_fdt.h include in common_fdt.c
Fixes: 70aa5a94d451 ("arm: mach-k3: am62: Fixup CPU core, gpu and pru nodes in fdt")
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
115 lines
2.9 KiB
C
115 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright 2023 Toradex - https://www.toradex.com/
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*/
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#include "common.h"
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#include <dm.h>
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#include <fdt_support.h>
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#include <linux/soc/ti/ti_sci_protocol.h>
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#include "common_fdt.h"
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static int fdt_fixup_msmc_ram(void *blob, char *parent_path, char *node_name)
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{
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u64 msmc_start = 0, msmc_end = 0, msmc_size, reg[2];
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struct ti_sci_handle *ti_sci = get_ti_sci_handle();
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int ret, node, subnode, len, prev_node;
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u32 range[4], addr, size;
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const fdt32_t *sub_reg;
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ti_sci->ops.core_ops.query_msmc(ti_sci, &msmc_start, &msmc_end);
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msmc_size = msmc_end - msmc_start + 1;
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debug("%s: msmc_start = 0x%llx, msmc_size = 0x%llx\n", __func__,
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msmc_start, msmc_size);
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/* find or create "msmc_sram node */
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ret = fdt_path_offset(blob, parent_path);
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if (ret < 0)
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return ret;
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node = fdt_find_or_add_subnode(blob, ret, node_name);
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if (node < 0)
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return node;
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ret = fdt_setprop_string(blob, node, "compatible", "mmio-sram");
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if (ret < 0)
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return ret;
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reg[0] = cpu_to_fdt64(msmc_start);
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reg[1] = cpu_to_fdt64(msmc_size);
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ret = fdt_setprop(blob, node, "reg", reg, sizeof(reg));
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if (ret < 0)
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return ret;
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fdt_setprop_cell(blob, node, "#address-cells", 1);
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fdt_setprop_cell(blob, node, "#size-cells", 1);
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range[0] = 0;
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range[1] = cpu_to_fdt32(msmc_start >> 32);
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range[2] = cpu_to_fdt32(msmc_start & 0xffffffff);
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range[3] = cpu_to_fdt32(msmc_size);
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ret = fdt_setprop(blob, node, "ranges", range, sizeof(range));
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if (ret < 0)
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return ret;
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subnode = fdt_first_subnode(blob, node);
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prev_node = 0;
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/* Look for invalid subnodes and delete them */
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while (subnode >= 0) {
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sub_reg = fdt_getprop(blob, subnode, "reg", &len);
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addr = fdt_read_number(sub_reg, 1);
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sub_reg++;
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size = fdt_read_number(sub_reg, 1);
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debug("%s: subnode = %d, addr = 0x%x. size = 0x%x\n", __func__,
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subnode, addr, size);
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if (addr + size > msmc_size ||
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!strncmp(fdt_get_name(blob, subnode, &len), "sysfw", 5) ||
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!strncmp(fdt_get_name(blob, subnode, &len), "l3cache", 7)) {
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fdt_del_node(blob, subnode);
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debug("%s: deleting subnode %d\n", __func__, subnode);
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if (!prev_node)
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subnode = fdt_first_subnode(blob, node);
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else
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subnode = fdt_next_subnode(blob, prev_node);
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} else {
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prev_node = subnode;
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subnode = fdt_next_subnode(blob, prev_node);
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}
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}
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return 0;
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}
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int fdt_fixup_msmc_ram_k3(void *blob)
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{
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int ret;
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ret = fdt_fixup_msmc_ram(blob, "/bus@100000", "sram@70000000");
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if (ret < 0)
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ret = fdt_fixup_msmc_ram(blob, "/interconnect@100000",
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"sram@70000000");
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if (ret)
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printf("%s: fixing up msmc ram failed %d\n", __func__, ret);
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return ret;
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}
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int fdt_del_node_path(void *blob, const char *path)
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{
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int ret;
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int nodeoff;
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nodeoff = fdt_path_offset(blob, path);
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if (nodeoff < 0)
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return 0; /* Not found, skip it */
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ret = fdt_del_node(blob, nodeoff);
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if (ret < 0)
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printf("Unable to delete node %s, err=%s\n", path, fdt_strerror(ret));
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else
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debug("Deleted node %s\n", path);
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return ret;
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}
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