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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2022 starfivetech.com
*
* Authors:
* Minda Chen <minda.chen@starfivetech.com>
*/
#include <sbi/riscv_io.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_string.h>
#include <sbi_utils/fdt/fdt_helper.h>
#include <sbi_utils/i2c/dw_i2c.h>
#include <sbi_utils/i2c/fdt_i2c.h>
#define FDT_DW_I2C_ADAPTER_MAX 7
static unsigned int fdt_dw_i2c_adapter_count;
static struct dw_i2c_adapter
fdt_dw_i2c_adapter_array[FDT_DW_I2C_ADAPTER_MAX];
extern struct fdt_i2c_adapter fdt_i2c_adapter_dw;
static int fdt_dw_i2c_init(void *fdt, int nodeoff,
const struct fdt_match *match)
{
int rc;
struct dw_i2c_adapter *adapter;
u64 addr;
if (fdt_dw_i2c_adapter_count >= FDT_DW_I2C_ADAPTER_MAX)
return SBI_ENOSPC;
adapter = &fdt_dw_i2c_adapter_array[fdt_dw_i2c_adapter_count];
rc = fdt_get_node_addr_size(fdt, nodeoff, 0, &addr, NULL);
if (rc)
return rc;
adapter->addr = addr;
adapter->adapter.driver = &fdt_i2c_adapter_dw;
rc = dw_i2c_init(&adapter->adapter, nodeoff);
if (rc)
return rc;
fdt_dw_i2c_adapter_count++;
return 0;
}
static const struct fdt_match fdt_dw_i2c_match[] = {
{ .compatible = "snps,designware-i2c" },
{ .compatible = "starfive,jh7110-i2c" },
{ },
};
struct fdt_i2c_adapter fdt_i2c_adapter_dw = {
.match_table = fdt_dw_i2c_match,
.init = fdt_dw_i2c_init,
};
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