diff options
Diffstat (limited to 'package/boot/uboot-zynq/patches/110-zybo-z7-read-mac-address-from-SPI-flash-memory.patch')
| -rw-r--r-- | package/boot/uboot-zynq/patches/110-zybo-z7-read-mac-address-from-SPI-flash-memory.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/package/boot/uboot-zynq/patches/110-zybo-z7-read-mac-address-from-SPI-flash-memory.patch b/package/boot/uboot-zynq/patches/110-zybo-z7-read-mac-address-from-SPI-flash-memory.patch new file mode 100644 index 0000000000..f0ebc3323e --- /dev/null +++ b/package/boot/uboot-zynq/patches/110-zybo-z7-read-mac-address-from-SPI-flash-memory.patch @@ -0,0 +1,107 @@ +From ac8fcc92d87436715ce85f39a4fe4f07c3bfa15e Mon Sep 17 00:00:00 2001 +From: Luis Araneda <luaraneda@gmail.com> +Date: Sun, 22 Jul 2018 02:52:41 -0400 +Subject: [U-Boot] [RFC PATCH] arm: zynq: read mac address from SPI flash memory + +Implement a method for reading the MAC address from an +SPI flash memory. +In particular, this method is used by the Zybo Z7 board +to read the MAC address from the OTP region in the SPI NOR +memory + +Signed-off-by: Luis Araneda <luaraneda@gmail.com> +--- +As of 2018-08-23, this patch has been sent to U-Boot's mailing list +and is being reviewed. Some changes on the implementation are expected, +but the functionality should not change +--- + board/xilinx/zynq/board.c | 28 ++++++++++++++++++++++++++++ + configs/zynq_zybo_z7_defconfig | 3 +++ + drivers/misc/Kconfig | 17 +++++++++++++++++ + 3 files changed, 48 insertions(+) + +--- a/board/xilinx/zynq/board.c ++++ b/board/xilinx/zynq/board.c +@@ -6,9 +6,12 @@ + + #include <common.h> + #include <dm/uclass.h> ++#include <dm/device.h> ++#include <dm/device-internal.h> + #include <fdtdec.h> + #include <fpga.h> + #include <mmc.h> ++#include <spi_flash.h> + #include <watchdog.h> + #include <wdt.h> + #include <zynqpl.h> +@@ -83,6 +86,31 @@ int zynq_board_read_rom_ethaddr(unsigned + printf("I2C EEPROM MAC address read failed\n"); + #endif + ++#if defined(CONFIG_MAC_ADDR_IN_SPI_FLASH) ++ struct spi_flash *flash; ++ struct udevice *dev; ++ int ret; ++ ++ ret = spi_flash_probe_bus_cs(CONFIG_SF_DEFAULT_BUS, ++ CONFIG_SF_DEFAULT_CS, ++ 0, 0, &dev); ++ if (ret) { ++ printf("SPI(bus:%u cs:%u) probe failed\n", ++ CONFIG_SF_DEFAULT_BUS, ++ CONFIG_SF_DEFAULT_CS); ++ return 0; ++ } ++ ++ flash = dev_get_uclass_priv(dev); ++ flash->read_cmd = CONFIG_MAC_ADDR_SPI_FLASH_READ_CMD; ++ ++ if (spi_flash_read_dm(dev, ++ CONFIG_MAC_ADDR_SPI_FLASH_DATA_OFFSET, ++ 6, ethaddr)) ++ printf("SPI MAC address read failed\n"); ++ ++ device_remove(dev, DM_REMOVE_NORMAL); ++#endif + return 0; + } + +--- a/configs/zynq_zybo_z7_defconfig ++++ b/configs/zynq_zybo_z7_defconfig +@@ -44,6 +44,9 @@ CONFIG_DM_GPIO=y + CONFIG_SYS_I2C_ZYNQ=y + CONFIG_ZYNQ_I2C0=y + CONFIG_ZYNQ_I2C1=y ++CONFIG_MAC_ADDR_IN_SPI_FLASH=y ++CONFIG_MAC_ADDR_SPI_FLASH_READ_CMD=0x4b ++CONFIG_MAC_ADDR_SPI_FLASH_DATA_OFFSET=0x20 + CONFIG_MMC_SDHCI=y + CONFIG_MMC_SDHCI_ZYNQ=y + CONFIG_SPI_FLASH=y +--- a/drivers/misc/Kconfig ++++ b/drivers/misc/Kconfig +@@ -272,6 +272,23 @@ config SYS_I2C_EEPROM_ADDR_OVERFLOW + + endif + ++config MAC_ADDR_IN_SPI_FLASH ++ bool "MAC address in SPI flash" ++ help ++ Read MAC address from an SPI flash memory ++ ++if MAC_ADDR_IN_SPI_FLASH ++ ++config MAC_ADDR_SPI_FLASH_READ_CMD ++ hex "Read command for the SPI flash memory" ++ default 0 ++ ++config MAC_ADDR_SPI_FLASH_DATA_OFFSET ++ hex "Offset of MAC data in SPI flash memory" ++ default 0 ++ ++endif ++ + config GDSYS_RXAUI_CTRL + bool "Enable gdsys RXAUI control driver" + depends on MISC |