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/* SPDX-License-Identifier: GPL-2.0-only */
#include <of.h>
#include <linux/ioport.h>
#include <asm/barebox-arm.h>
#include <asm/optee.h>
#include <tee/optee.h>
int of_optee_fixup(struct device_node *root, void *_data)
{
struct of_optee_fixup_data *fixup_data = _data;
const char *optee_of_path = "/firmware/optee";
struct resource res = {};
struct device_node *node;
u64 optee_membase;
int ret;
if (of_find_node_by_path_from(root, optee_of_path))
return 0;
node = of_create_node(root, optee_of_path);
if (!node)
return -ENOMEM;
ret = of_property_write_string(node, "compatible", "linaro,optee-tz");
if (ret)
return ret;
ret = of_property_write_string(node, "method", fixup_data->method);
if (ret)
return ret;
if (!optee_get_membase(&optee_membase)) {
res.start = optee_membase;
res.end = optee_membase + OPTEE_SIZE - fixup_data->shm_size - 1;
} else {
res.start = arm_mem_endmem_get() - OPTEE_SIZE;
res.end = arm_mem_endmem_get() - fixup_data->shm_size - 1;
}
res.flags = IORESOURCE_BUSY;
res.name = "optee_core";
ret = of_fixup_reserved_memory(root, &res);
if (ret)
return ret;
if (!optee_get_membase(&optee_membase)) {
res.start = optee_membase + OPTEE_SIZE - fixup_data->shm_size;
res.end = optee_membase + OPTEE_SIZE - 1;
} else {
res.start = arm_mem_endmem_get() - fixup_data->shm_size;
res.end = arm_mem_endmem_get() - 1;
}
res.flags &= ~IORESOURCE_BUSY;
res.name = "optee_shm";
return of_fixup_reserved_memory(root, &res);
}
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