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ad42093755
Add architecture-related code for dm fec support. Signed-off-by: Angelo Durgehello <angelo.dureghello@timesys.com>
79 lines
1.4 KiB
C
79 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) 2019 Angelo Dureghello <angelo.dureghello@timesys.com>
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*/
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#include <common.h>
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#include <linux/libfdt.h>
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#include <fdt_support.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if defined(CONFIG_MCFFEC) || defined(CONFIG_FSLDMAFEC)
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static int fec_get_node(int fec_idx)
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{
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char fec_alias[5] = {"fec"};
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const char *path;
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int node;
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if (fec_idx > 1) {
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puts("Invalid MII base index");
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return -ENOENT;
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}
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fec_alias[3] = fec_idx + '0';
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path = fdt_get_alias(gd->fdt_blob, fec_alias);
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if (!path) {
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puts("Invalid MII path");
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return -ENOENT;
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}
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node = fdt_path_offset(gd->fdt_blob, path);
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if (node < 0)
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return -ENOENT;
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return node;
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}
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int fec_get_fdt_prop(int fec_idx, const char *prop, u32 *value)
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{
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int node;
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const u32 *val;
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node = fec_get_node(fec_idx);
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if (node < 0)
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return node;
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val = fdt_getprop(gd->fdt_blob, node, prop, NULL);
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if (!val)
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return -ENOENT;
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*value = fdt32_to_cpu(*val);
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return 0;
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}
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int fec_get_base_addr(int fec_idx, u32 *fec_iobase)
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{
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int node;
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fdt_size_t size;
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fdt_addr_t addr;
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node = fec_get_node(fec_idx);
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if (node < 0)
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return node;
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addr = fdtdec_get_addr_size(gd->fdt_blob, node, "reg", &size);
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*fec_iobase = (u32)addr;
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return 0;
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}
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int fec_get_mii_base(int fec_idx, u32 *mii_base)
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{
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return fec_get_fdt_prop(fec_idx, "mii-base", mii_base);
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}
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#endif //CONFIG_MCFFEC || CONFIG_FSLDMAFEC
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