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-rw-r--r--arch/arm/lib/crt0_aarch64_efi.S1
-rw-r--r--arch/arm/lib/crt0_arm_efi.S1
-rw-r--r--arch/riscv/lib/crt0_riscv_efi.S1
-rw-r--r--doc/README.bitbangMII39
-rw-r--r--doc/develop/bitbangmii.rst75
-rw-r--r--doc/develop/index.rst1
-rw-r--r--lib/efi_loader/elf_efi.ldsi6
-rw-r--r--scripts/Makefile.lib4
8 files changed, 84 insertions, 44 deletions
diff --git a/arch/arm/lib/crt0_aarch64_efi.S b/arch/arm/lib/crt0_aarch64_efi.S
index e21b54fdbcb..003d5f83041 100644
--- a/arch/arm/lib/crt0_aarch64_efi.S
+++ b/arch/arm/lib/crt0_aarch64_efi.S
@@ -144,6 +144,7 @@ section_table:
IMAGE_SCN_CNT_INITIALIZED_DATA)
.align 12
+ .globl _start
_start:
stp x29, x30, [sp, #-32]!
mov x29, sp
diff --git a/arch/arm/lib/crt0_arm_efi.S b/arch/arm/lib/crt0_arm_efi.S
index 91b0fe12c51..1e7de5c3343 100644
--- a/arch/arm/lib/crt0_arm_efi.S
+++ b/arch/arm/lib/crt0_arm_efi.S
@@ -143,6 +143,7 @@ section_table:
IMAGE_SCN_CNT_INITIALIZED_DATA)
.align 12
+ .globl _start
_start:
stmfd sp!, {r0-r2, lr}
diff --git a/arch/riscv/lib/crt0_riscv_efi.S b/arch/riscv/lib/crt0_riscv_efi.S
index 9eacbe4a859..f170e4b26d6 100644
--- a/arch/riscv/lib/crt0_riscv_efi.S
+++ b/arch/riscv/lib/crt0_riscv_efi.S
@@ -179,6 +179,7 @@ section_table:
IMAGE_SCN_CNT_INITIALIZED_DATA)
.align 12
+ .globl _start
_start:
addi sp, sp, -(SIZE_LONG * 3)
SAVE_LONG(a0, 0)
diff --git a/doc/README.bitbangMII b/doc/README.bitbangMII
deleted file mode 100644
index 05ab20376f3..00000000000
--- a/doc/README.bitbangMII
+++ /dev/null
@@ -1,39 +0,0 @@
-This patch rewrites the miiphybb ( Bit-banged MII bus driver ) in order to
-support an arbitrary number of mii buses. This feature is useful when your
-board uses different mii buses for different phys and all (or a part) of these
-buses are implemented via bit-banging mode.
-
-The driver requires that the following macros should be defined into the board
-configuration file:
-
-CONFIG_BITBANGMII - Enable the miiphybb driver
-
-The board code needs to fill the bb_miiphy_buses[] array with a record for
-each required bus and declare the bb_miiphy_buses_num variable with the
-number of mii buses. The record (struct bb_miiphy_bus) has the following
-fields/callbacks (see miiphy.h for details):
-
-char name[] - The symbolic name that must be equal to the MII bus
- registered name
-int (*init)() - Initialization function called at startup time (just
- before the Ethernet initialization)
-int (*mdio_active)() - Activate the MDIO pin as output
-int (*mdio_tristate)() - Activate the MDIO pin as input/tristate pin
-int (*set_mdio)() - Write the MDIO pin
-int (*get_mdio)() - Read the MDIO pin
-int (*set_mdc)() - Write the MDC pin
-int (*delay)() - Delay function
-void *priv - Private data used by board specific code
-
-The board code will look like:
-
-struct bb_miiphy_bus bb_miiphy_buses[] = {
- { .name = "miibus#1", .init = b1_init, .mdio_active = b1_mdio_active, ... },
- { .name = "miibus#2", .init = b2_init, .mdio_active = b2_mdio_active, ... },
- ...
-};
-int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
- sizeof(bb_miiphy_buses[0]);
-
-2009 Industrie Dial Face S.p.A.
- Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com>
diff --git a/doc/develop/bitbangmii.rst b/doc/develop/bitbangmii.rst
new file mode 100644
index 00000000000..35a4a0cb7f9
--- /dev/null
+++ b/doc/develop/bitbangmii.rst
@@ -0,0 +1,75 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+.. Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com>, Industrie Dial Face S.p.A., 2009
+
+Bit-banged MII bus support
+==========================
+
+The miiphybb ( Bit-banged MII bus driver ) supports an arbitrary number of
+MII buses. This feature is useful when a driver uses different MII buses for
+different PHYs and all (or a part) of these buses are implemented via
+bit-banging mode.
+
+The driver requires that the following macro is defined in the board
+configuration file:
+
+* CONFIG_BITBANGMII - Enable the miiphybb driver
+
+The driver code needs to allocate a regular MDIO device using mdio_alloc()
+and assign .read and .write accessors which wrap bb_miiphy_read() and
+bb_miiphy_write() functions respectively. The bb_miiphy_read() and
+bb_miiphy_write() functions take a pointer to a callback structure,
+struct bb_miiphy_bus_ops. The struct bb_miiphy_bus_ops has the following
+fields/callbacks (see miiphy.h for details):
+
+.. code-block:: c
+
+ int (*mdio_active)() // Activate the MDIO pin as output
+ int (*mdio_tristate)() // Activate the MDIO pin as input/tristate pin
+ int (*set_mdio)() // Write the MDIO pin
+ int (*get_mdio)() // Read the MDIO pin
+ int (*set_mdc)() // Write the MDC pin
+ int (*delay)() // Delay function
+
+The driver code will look like:
+
+.. code-block:: c
+
+ static const struct bb_miiphy_bus_ops ravb_bb_miiphy_bus_ops = {
+ .mdio_active = ravb_bb_mdio_active,
+ .mdio_tristate = ravb_bb_mdio_tristate,
+ .set_mdio = ravb_bb_set_mdio,
+ .get_mdio = ravb_bb_get_mdio,
+ .set_mdc = ravb_bb_set_mdc,
+ .delay = ravb_bb_delay,
+ };
+
+ static int ravb_bb_miiphy_read(struct mii_dev *miidev, int addr,
+ int devad, int reg)
+ {
+ return bb_miiphy_read(miidev, &ravb_bb_miiphy_bus_ops,
+ addr, devad, reg);
+ }
+
+ static int ravb_bb_miiphy_write(struct mii_dev *miidev, int addr,
+ int devad, int reg, u16 value)
+ {
+ return bb_miiphy_write(miidev, &ravb_bb_miiphy_bus_ops,
+ addr, devad, reg, value);
+ }
+
+ static int ravb_probe(struct udevice *dev)
+ {
+ struct mii_dev *mdiodev;
+ ...
+ mdiodev = mdio_alloc();
+ if (!mdiodev)
+ return -ENOMEM;
+
+ mdiodev->read = ravb_bb_miiphy_read;
+ mdiodev->write = ravb_bb_miiphy_write;
+ mdiodev->priv = eth;
+ snprintf(mdiodev->name, sizeof(mdiodev->name), dev->name);
+
+ ret = mdio_register(mdiodev);
+ ...
+ }
diff --git a/doc/develop/index.rst b/doc/develop/index.rst
index d9f2a838207..c907f8c9c2c 100644
--- a/doc/develop/index.rst
+++ b/doc/develop/index.rst
@@ -9,6 +9,7 @@ General
.. toctree::
:maxdepth: 1
+ bitbangmii
board_best_practices
codingstyle
designprinciples
diff --git a/lib/efi_loader/elf_efi.ldsi b/lib/efi_loader/elf_efi.ldsi
index 190a88fb69e..4fa5ca43872 100644
--- a/lib/efi_loader/elf_efi.ldsi
+++ b/lib/efi_loader/elf_efi.ldsi
@@ -21,10 +21,10 @@ SECTIONS
*(.gnu.linkonce.t.*)
*(.srodata)
*(.rodata*)
- . = ALIGN(16);
- *(.dynamic);
- . = ALIGN(512);
}
+ . = ALIGN(16);
+ .dynamic : { *(.dynamic) }
+ . = ALIGN(512);
.rela.dyn : { *(.rela.dyn) }
.rela.plt : { *(.rela.plt) }
.rela.got : { *(.rela.got) }
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 18993435eae..275c308154b 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -513,8 +513,8 @@ $(obj)/%_efi.S: $(obj)/%.efi
$(call cmd,S_efi)
quiet_cmd_efi_objcopy = OBJCOPY $@
-cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
- .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
+cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data \
+ -j .dynamic -j .dynstr -j .dynsym -j .rel* -j .reloc \
$(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
$(obj)/%.efi: $(obj)/%_efi.so
generated by cgit v1.2.3 (git 2.0.4) at 2025-07-24 19:40:36 +0000