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author | Angelo Durgehello <angelo.dureghello@timesys.com> | 2019-11-16 01:54:16 +0300 |
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committer | Tom Rini <trini@konsulko.com> | 2020-01-10 18:25:13 +0300 |
commit | ad420937558a9b3bc0e93d9693b34f57cf4480a0 (patch) | |
tree | e036131d4e2e6056dcf0398ca51542216e91d954 /arch/m68k/lib | |
parent | ff56f2b7263fae9132c13078ccd8d9604cf1e139 (diff) | |
download | u-boot-ad420937558a9b3bc0e93d9693b34f57cf4480a0.tar.xz |
m68k: add dm fec support
Add architecture-related code for dm fec support.
Signed-off-by: Angelo Durgehello <angelo.dureghello@timesys.com>
Diffstat (limited to 'arch/m68k/lib')
-rw-r--r-- | arch/m68k/lib/Makefile | 1 | ||||
-rw-r--r-- | arch/m68k/lib/fec.c | 79 |
2 files changed, 80 insertions, 0 deletions
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile index 254a0a3998..a040f40eb8 100644 --- a/arch/m68k/lib/Makefile +++ b/arch/m68k/lib/Makefile @@ -12,3 +12,4 @@ obj-y += cache.o obj-y += interrupts.o obj-y += time.o obj-y += traps.o +obj-y += fec.o diff --git a/arch/m68k/lib/fec.c b/arch/m68k/lib/fec.c new file mode 100644 index 0000000000..dde353ad17 --- /dev/null +++ b/arch/m68k/lib/fec.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) 2019 Angelo Dureghello <angelo.dureghello@timesys.com> + */ + +#include <common.h> +#include <linux/libfdt.h> +#include <fdt_support.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_MCFFEC) || defined(CONFIG_FSLDMAFEC) +static int fec_get_node(int fec_idx) +{ + char fec_alias[5] = {"fec"}; + const char *path; + int node; + + if (fec_idx > 1) { + puts("Invalid MII base index"); + return -ENOENT; + } + + fec_alias[3] = fec_idx + '0'; + + path = fdt_get_alias(gd->fdt_blob, fec_alias); + if (!path) { + puts("Invalid MII path"); + return -ENOENT; + } + + node = fdt_path_offset(gd->fdt_blob, path); + if (node < 0) + return -ENOENT; + + return node; +} + +int fec_get_fdt_prop(int fec_idx, const char *prop, u32 *value) +{ + int node; + const u32 *val; + + node = fec_get_node(fec_idx); + if (node < 0) + return node; + + val = fdt_getprop(gd->fdt_blob, node, prop, NULL); + if (!val) + return -ENOENT; + + *value = fdt32_to_cpu(*val); + + return 0; +} + +int fec_get_base_addr(int fec_idx, u32 *fec_iobase) +{ + int node; + fdt_size_t size; + fdt_addr_t addr; + + node = fec_get_node(fec_idx); + if (node < 0) + return node; + + addr = fdtdec_get_addr_size(gd->fdt_blob, node, "reg", &size); + + *fec_iobase = (u32)addr; + + return 0; +} + +int fec_get_mii_base(int fec_idx, u32 *mii_base) +{ + return fec_get_fdt_prop(fec_idx, "mii-base", mii_base); +} + +#endif //CONFIG_MCFFEC || CONFIG_FSLDMAFEC |