[U-Boot, v1, 1/1] net: phy: air_en8811h: load the PHY firmware from filesystem on block device instead
Lucien.Jheng
lucienzx159 at gmail.com
Sat Apr 19 11:43:19 CEST 2025
Locating the AIROHA FW within the filesystem at the designated partition
and path will trigger its automatic loading and writing to the PHY via MDIO.
Signed-off-by: Lucien.Jheng <lucienzx159 at gmail.com>
---
drivers/net/phy/Kconfig | 39 ++++++++------
drivers/net/phy/air_en8811h.c | 97 +++++++++++++++++++----------------
2 files changed, 78 insertions(+), 58 deletions(-)
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 5b4cf30b0a3..384cef845e1 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -94,24 +94,33 @@ choice
depends on PHY_AIROHA_EN8811H
config PHY_AIROHA_FW_IN_MMC
- bool "Airoha firmware in MMC boot1 partition"
-
-endchoice
+ bool "Airoha firmware in MMC partition"
+ help
+ Airoha PHYs use firmware which can be loaded automatically
+ from storage directly attached to the PHY, and then loaded
+ via MDIO commands by the boot loader. The firmware is loaded
+ from a file specified by the PHY_AIROHA_FW_PART,
+ PHY_AIROHA_FW_DM_FILEPATH and PHY_AIROHA_FW_DSP_FILEPATH options.
+
+config PHY_AIROHA_FW_PART
+ string "Airoha firmware partition"
+ depends on PHY_AIROHA_FW_IN_MMC
+ help
+ Partition containing the firmware file.
-config AIROHA_FW_ADDR
- hex "Airoha Firmware Address"
- depends on PHY_AIROHA_EN8811H
- default 0x0
+config PHY_AIROHA_FW_DM_FILEPATH
+ string "Airoha firmware DM file path in the filesystem"
+ depends on PHY_AIROHA_FW_IN_MMC
+ help
+ Specify Airoha firmware DM file path in the filesystem.
-config AIROHA_MD32_DM_SIZE
- hex "Airoha Firmware MD32 DM Size"
- depends on PHY_AIROHA_EN8811H
- default 0x4000
+config PHY_AIROHA_FW_DSP_FILEPATH
+ string "Airoha firmware DSP file path in the filesystem"
+ depends on PHY_AIROHA_FW_IN_MMC
+ help
+ Specify Airoha firmware DSP file path in the filesystem.
-config AIROHA_MD32_DSP_SIZE
- hex "Airoha Firmware MD32 DSP Size"
- depends on PHY_AIROHA_EN8811H
- default 0x20000
+endchoice
menuconfig PHY_AQUANTIA
bool "Aquantia Ethernet PHYs support"
diff --git a/drivers/net/phy/air_en8811h.c b/drivers/net/phy/air_en8811h.c
index 96bb24418a0..8a2a25a8c74 100644
--- a/drivers/net/phy/air_en8811h.c
+++ b/drivers/net/phy/air_en8811h.c
@@ -12,12 +12,14 @@
*/
#include <phy.h>
#include <errno.h>
+#include <log.h>
#include <malloc.h>
+#include <fs.h>
#include <asm/unaligned.h>
#include <linux/iopoll.h>
-#include <dm/device_compat.h>
#include <linux/bitops.h>
-#include <mmc.h>
+#include <dm/device_compat.h>
+#include <u-boot/crc.h>
#define EN8811H_PHY_ID 0x03a2a411
@@ -415,11 +417,6 @@ restore_page:
return air_phy_restore_page(phydev, saved_page, ret);
}
-__weak ulong *en8811h_get_fw_addr(void)
-{
- return (ulong *)CONFIG_AIROHA_FW_ADDR;
-}
-
static int en8811h_wait_mcu_ready(struct phy_device *phydev)
{
int ret, reg_value;
@@ -437,85 +434,99 @@ static int en8811h_wait_mcu_ready(struct phy_device *phydev)
return 0;
}
+static void crc32_check(unsigned char *name, unsigned char *buf, u32 len)
+{
+ u32 ca_crc32;
+
+ ca_crc32 = crc32(0, buf, len);
+ debug("%s: crc32 is 0x%x\n", name, ca_crc32);
+}
+
static int en8811h_load_firmware(struct phy_device *phydev)
{
int ret;
- char *addr = NULL;
+ void *addr = NULL;
struct en8811h_priv *priv = phydev->priv;
- int dev = CONFIG_SYS_MMC_ENV_DEV;
- u32 cnt = (CONFIG_AIROHA_MD32_DM_SIZE +
- CONFIG_AIROHA_MD32_DSP_SIZE) / 512;
- ulong airoha_fw_addr = (ulong)en8811h_get_fw_addr();
- u32 blk = airoha_fw_addr / 512;
-
- addr = malloc(CONFIG_AIROHA_MD32_DM_SIZE + CONFIG_AIROHA_MD32_DSP_SIZE);
- if (!addr) {
- puts("cannot allocated buffer for firmware.\n");
- return -ENOMEM;
- }
if (IS_ENABLED(CONFIG_PHY_AIROHA_FW_IN_MMC)) {
- struct mmc *mmc = find_mmc_device(dev);
+ loff_t read;
- if (!mmc) {
- puts("Failed to find MMC device for Airoha ucode\n");
- goto en8811h_load_firmware_out;
+ addr = malloc(EN8811H_MD32_DM_SIZE +
+ EN8811H_MD32_DSP_SIZE);
+ if (!addr) {
+ puts("cannot allocated buffer for firmware.\n");
+ return -ENOMEM;
}
- printf("MMC read: dev # %u, block # %u, count %u ...\n",
- dev, blk, cnt);
+ debug("\nLoading Airoha FW from %s %s\n",
+ CONFIG_PHY_AIROHA_FW_PART,
+ CONFIG_PHY_AIROHA_FW_DM_FILEPATH);
+ ret = fs_set_blk_dev("mmc", CONFIG_PHY_AIROHA_FW_PART, FS_TYPE_ANY);
+ if (ret < 0)
+ goto en8811h_load_firmware_out;
- if (mmc_init(mmc)) {
- puts("initializing MMC device failed.\n");
+ ret = fs_read(CONFIG_PHY_AIROHA_FW_DM_FILEPATH,
+ (ulong)addr, 0, EN8811H_MD32_DM_SIZE, &read);
+ if (ret < 0)
goto en8811h_load_firmware_out;
- }
- ret = mmc_set_part_conf(mmc, 1, 2, 2);
- if (ret) {
- puts("cannot access eMMC boot1 hw partition.\n");
+ /* Calculate the CRC32 */
+ crc32_check(CONFIG_PHY_AIROHA_FW_DM_FILEPATH,
+ (unsigned char *)addr, EN8811H_MD32_DM_SIZE);
+
+ debug("Loading Airoha FW from %s %s\n",
+ CONFIG_PHY_AIROHA_FW_PART,
+ CONFIG_PHY_AIROHA_FW_DSP_FILEPATH);
+ ret = fs_set_blk_dev("mmc", CONFIG_PHY_AIROHA_FW_PART, FS_TYPE_ANY);
+ if (ret < 0)
goto en8811h_load_firmware_out;
- }
- (void)blk_dread(mmc_get_blk_desc(mmc), blk, cnt, addr);
+ ret = fs_read(CONFIG_PHY_AIROHA_FW_DSP_FILEPATH,
+ (ulong)addr + EN8811H_MD32_DM_SIZE,
+ 0, EN8811H_MD32_DSP_SIZE, &read);
+ if (ret < 0)
+ goto en8811h_load_firmware_out;
- mmc_set_part_conf(mmc, 1, 1, 0);
+ /* Calculate the CRC32 */
+ crc32_check(CONFIG_PHY_AIROHA_FW_DSP_FILEPATH,
+ (unsigned char *)addr + EN8811H_MD32_DM_SIZE,
+ EN8811H_MD32_DSP_SIZE);
} else {
puts("EN8811H firmware loading not implemented");
- free(addr);
- addr = NULL;
return -EOPNOTSUPP;
}
ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
EN8811H_FW_CTRL_1_START);
if (ret < 0)
- return ret;
+ goto en8811h_load_firmware_out;
ret = air_buckpbus_reg_modify(phydev, EN8811H_FW_CTRL_2,
EN8811H_FW_CTRL_2_LOADING,
EN8811H_FW_CTRL_2_LOADING);
if (ret < 0)
- return ret;
+ goto en8811h_load_firmware_out;
- ret = air_write_buf(phydev, AIR_FW_ADDR_DM, CONFIG_AIROHA_MD32_DM_SIZE, addr);
+ ret = air_write_buf(phydev, AIR_FW_ADDR_DM, EN8811H_MD32_DM_SIZE,
+ (unsigned char *)addr);
if (ret < 0)
goto en8811h_load_firmware_out;
- ret = air_write_buf(phydev, AIR_FW_ADDR_DSP, CONFIG_AIROHA_MD32_DSP_SIZE,
- addr + CONFIG_AIROHA_MD32_DM_SIZE);
+ ret = air_write_buf(phydev, AIR_FW_ADDR_DSP, EN8811H_MD32_DSP_SIZE,
+ (unsigned char *)addr + EN8811H_MD32_DM_SIZE);
if (ret < 0)
goto en8811h_load_firmware_out;
ret = air_buckpbus_reg_modify(phydev, EN8811H_FW_CTRL_2,
EN8811H_FW_CTRL_2_LOADING, 0);
if (ret < 0)
- return ret;
+ goto en8811h_load_firmware_out;
ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
EN8811H_FW_CTRL_1_FINISH);
if (ret < 0)
- return ret;
+ goto en8811h_load_firmware_out;
ret = en8811h_wait_mcu_ready(phydev);
--
2.34.1
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