[PATCH v4 5/5] net: phy: aquantia: use generic firmware loader
Beiyan Yun
root at infi.wang
Fri Oct 31 16:21:07 CET 2025
Aquantia PHYs are being used w/o SPI flash in some routers recently.
Current firmware loader only attempts to load from FS on top of MMC,
limiting the use on many devices.
Removed the old firmware loader, migrate to generic firmware loader to
allow a wider range and runtime override of firmware source. (e.g., USB).
Tested on Buffalo WXR18000BE10P with UBIFS.
Signed-off-by: Beiyan Yun <root at infi.wang>
---
Changes in v4:
- Split firmware upload helpers change
- Reorder `aquantia_read_fw`
- Make `aquantia_read_fw` weak to allow overide
- Rename exit label in `aquantia_read_fw`
- Kconfig polish
Changes in v3:
- Select FW_LOADER with PHY_AQUANTIA_UPLOAD_FW
Changes in v2:
- Add support for script based loader
drivers/net/phy/Kconfig | 28 +++++----
drivers/net/phy/aquantia.c | 122 ++++++++++++++++++++++---------------
2 files changed, 91 insertions(+), 59 deletions(-)
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 018be98705a..4a74a0d4e8c 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -1,4 +1,3 @@
-
config BITBANGMII
bool "Bit-banged ethernet MII management channel support"
@@ -91,23 +90,30 @@ menuconfig PHY_AQUANTIA
config PHY_AQUANTIA_UPLOAD_FW
bool "Aquantia firmware loading support"
depends on PHY_AQUANTIA
+ select FS_LOADER
+ select FW_LOADER
help
- Aquantia PHYs use firmware which can be either loaded automatically
- from storage directly attached to the phy or loaded by the boot loader
- via MDIO commands. The firmware is loaded from a file, specified by
- the PHY_AQUANTIA_FW_PART and PHY_AQUANTIA_FW_NAME options.
+ Aquantia PHYs use firmware which can be either loaded automatically
+ from storage directly attached to the phy or loaded by the boot loader
+ via MDIO commands.
+
+ This option enables loading the firmware using the generic
+ firmware loader framework.
-config PHY_AQUANTIA_FW_PART
- string "Aquantia firmware partition"
+config PHY_AQUANTIA_FW_MAX_SIZE
+ hex "Max firmware size"
depends on PHY_AQUANTIA_UPLOAD_FW
+ default 0x80000
help
- Partition containing the firmware file.
+ The maximum size of the Aquantia PHY firmware. This is used to
+ allocate a buffer to load the firmware into.
-config PHY_AQUANTIA_FW_NAME
- string "Aquantia firmware filename"
+config PHY_AQUANTIA_FW_LOADER_SCRIPT
+ string "Aquantia firmware loader script"
depends on PHY_AQUANTIA_UPLOAD_FW
+ default "aqr_phy_load_firmware"
help
- Firmware filename.
+ The firmware loading script variable name.
config PHY_ATHEROS
bool "Atheros Ethernet PHYs support"
diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c
index 461d4b07a40..934bd17eadd 100644
--- a/drivers/net/phy/aquantia.c
+++ b/drivers/net/phy/aquantia.c
@@ -17,6 +17,10 @@
#include <malloc.h>
#include <asm/byteorder.h>
#include <fs.h>
+#if (IS_ENABLED(CONFIG_PHY_AQUANTIA_UPLOAD_FW))
+#include <fs_loader.h>
+#include <fw_loader.h>
+#endif
#define AQUNTIA_10G_CTL 0x20
#define AQUNTIA_VENDOR_P1 0xc400
@@ -127,51 +131,67 @@ struct fw_header {
#pragma pack()
-#if defined(CONFIG_PHY_AQUANTIA_UPLOAD_FW)
-static int aquantia_read_fw(u8 **fw_addr, size_t *fw_length)
+#if (IS_ENABLED(CONFIG_PHY_AQUANTIA_UPLOAD_FW))
+int __weak aquantia_read_fw(struct phy_device *phydev, u8 **fw_addr,
+ size_t *fw_length)
{
- loff_t length, read;
int ret;
- void *addr = NULL;
-
- *fw_addr = NULL;
- *fw_length = 0;
- debug("Loading Aquantia microcode from %s %s\n",
- CONFIG_PHY_AQUANTIA_FW_PART, CONFIG_PHY_AQUANTIA_FW_NAME);
- ret = fs_set_blk_dev("mmc", CONFIG_PHY_AQUANTIA_FW_PART, FS_TYPE_ANY);
- if (ret < 0)
- goto cleanup;
-
- ret = fs_size(CONFIG_PHY_AQUANTIA_FW_NAME, &length);
- if (ret < 0)
- goto cleanup;
-
- addr = malloc(length);
- if (!addr) {
- ret = -ENOMEM;
- goto cleanup;
+ ofnode node;
+ struct udevice *loader_dev;
+ const char *fw_name;
+ u8 *tmp_fw_addr;
+ size_t tmp_fw_length;
+
+ tmp_fw_addr = malloc(CONFIG_PHY_AQUANTIA_FW_MAX_SIZE);
+ if (!tmp_fw_addr) {
+ printf("Failed to allocate memory for firmware\n");
+ return -ENOMEM;
}
- ret = fs_set_blk_dev("mmc", CONFIG_PHY_AQUANTIA_FW_PART, FS_TYPE_ANY);
- if (ret < 0)
- goto cleanup;
-
- ret = fs_read(CONFIG_PHY_AQUANTIA_FW_NAME, (ulong)addr, 0, length,
- &read);
- if (ret < 0)
- goto cleanup;
-
- *fw_addr = addr;
- *fw_length = length;
- debug("Found Aquantia microcode.\n");
-
-cleanup:
- if (ret < 0) {
- printf("loading firmware file %s %s failed with error %d\n",
- CONFIG_PHY_AQUANTIA_FW_PART, CONFIG_PHY_AQUANTIA_FW_NAME,
- ret);
- free(addr);
+ /* First, try to load firmware via script */
+ ret = request_firmware_into_buf_via_script(
+ tmp_fw_addr, CONFIG_PHY_AQUANTIA_FW_MAX_SIZE,
+ CONFIG_PHY_AQUANTIA_FW_LOADER_SCRIPT, &tmp_fw_length);
+ if (ret) {
+ /* Fallback to DT specified firmware */
+ node = phy_get_ofnode(phydev);
+ if (!ofnode_valid(node)) {
+ printf("Failed to get PHY node\n");
+ ret = -EINVAL;
+ goto fail_free;
+ }
+
+ fw_name = ofnode_read_string(node, "firmware-name");
+ if (!fw_name) {
+ printf("Failed to get firmware name\n");
+ ret = -ENOENT;
+ goto fail_free;
+ }
+
+ ret = get_fs_loader(&loader_dev);
+ if (ret) {
+ printf("Failed to get fs_loader instance: %d\n", ret);
+ goto fail_free;
+ }
+
+ ret = request_firmware_into_buf(loader_dev, fw_name,
+ tmp_fw_addr,
+ CONFIG_PHY_AQUANTIA_FW_MAX_SIZE,
+ 0);
+ if (ret < 0) {
+ printf("Failed to load firmware %s: %d\n", fw_name,
+ ret);
+ goto fail_free;
+ }
+ tmp_fw_length = ret;
}
+
+ *fw_addr = tmp_fw_addr;
+ *fw_length = tmp_fw_length;
+ return 1;
+
+fail_free:
+ free(tmp_fw_addr);
return ret;
}
@@ -227,6 +247,11 @@ static int aquantia_do_upload_firmware(struct phy_device *phydev,
u32 primary_offset, iram_offset, iram_size, dram_offset, dram_size;
const struct fw_header *header;
+ if (!addr || !fw_length) {
+ printf("%s: Invalid firmware data\n", phydev->dev->name);
+ return -EINVAL;
+ }
+
read_crc = (addr[fw_length - 2] << 8) | addr[fw_length - 1];
calculated_crc = crc16_ccitt(0, addr, fw_length - 2);
if (read_crc != calculated_crc) {
@@ -290,17 +315,18 @@ static int aquantia_do_upload_firmware(struct phy_device *phydev,
static int aquantia_upload_firmware(struct phy_device *phydev)
{
- int ret;
- u8 *addr = NULL;
- size_t fw_length = 0;
+ int ret, fwrc;
+ u8 *fw_addr = NULL;
+ size_t fw_length;
- ret = aquantia_read_fw(&addr, &fw_length);
- if (ret != 0)
- return ret;
+ fwrc = aquantia_read_fw(phydev, &fw_addr, &fw_length);
+ if (fwrc < 0)
+ return fwrc;
- ret = aquantia_do_upload_firmware(phydev, addr, fw_length);
+ ret = aquantia_do_upload_firmware(phydev, fw_addr, fw_length);
- free(addr);
+ if (fwrc > 0)
+ free(fw_addr);
return ret;
}
--
2.47.3
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