Add sys_eeprom feature to read MAC addresses and other variables

For machines that doesn't have sys_eeprom initialized, this can be done
in u-boot by -
sys_eeprom set 0x24 00:11:22:44:11:44
sys_eeprom set 0x2a 0x10
sys_eeprom write

The first command will set the base MAC, the second will define a range
of 16 MAC addresses (LX2 COM can actually go up to 17 MACs).
The third command will save the TLV data. After that reset is required
for the MAC addresses to get effective
Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>

patches/u-boot-LSDK-20.04/0026-lx2160acex7-add-sys_eeprom-support-and-read-MAC-addr.patch

+From 05f7b0ddb485d587ee3638105a2b0536abc1eff0 Mon Sep 17 00:00:00 2001
+From: Rabeeh Khoury <rabeeh@solid-run.com>
+Date: Thu, 17 Dec 2020 17:55:19 +0200
+Subject: [PATCH] lx2160acex7: add sys_eeprom support and read MAC addresses
+ from it
+
+1. Add eeprom on I2C0 - MUX (0x77) - I2C0 - EEPROM at 0x57 (2Kbit
+eeprom)
+2. After storing first TLV formatted data sys_eeprom will use that
+eeprom
+3. For now the DPMAC17 (1Gbps from the COM) is set as last DPMAC for
+registration, which means it will get the MAC register in sys_eeprom + 8
+in the case of SD1 protocol=8. We will modify that in the future the
+DPMAC17 will be registered first so it would get the sys_eeprom base MAC
+first.
+
+Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
+---
+ arch/arm/dts/fsl-lx2160a-cex7.dts        | 61 ++++++++++++++++++++++++
+ board/solidrun/lx2160a/eth_lx2160acex7.c |  6 +--
+ configs/lx2160acex7_tfa_defconfig        |  7 +++
+ include/configs/lx2160acex7.h            |  8 +---
+ 4 files changed, 72 insertions(+), 10 deletions(-)
+
+diff --git a/arch/arm/dts/fsl-lx2160a-cex7.dts b/arch/arm/dts/fsl-lx2160a-cex7.dts
+index 4ca67df2..04adbcf6 100644
+--- a/arch/arm/dts/fsl-lx2160a-cex7.dts
++++ b/arch/arm/dts/fsl-lx2160a-cex7.dts
+@@ -49,6 +49,67 @@
+ &i2c0 {
+ 	status = "okay";
+ 	u-boot,dm-pre-reloc;
++	i2c-mux@77 {
++		compatible = "nxp,pca9547";
++		reg = <0x77>;
++		#address-cells = <1>;
++		#size-cells = <0>;
++		i2c@0 {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			reg = <0x0>;
++/* The following eeprin is reserved so that the 2Kb eeprom at address 0x57
++   would be used as TLV eeprom.
++			24aa512@50 {
++				compatible = "atmel,24c512";
++				reg = <0x50>;
++			};
++*/
++			spd1@51 {
++				compatible = "atmel,spd";
++				reg = <0x51>;
++			};
++			spd2@53 {
++				compatible = "atmel,spd";
++				reg = <0x53>;
++			};
++			m24c02@57 {
++				compatible = "atmel,24c02";
++				reg = <0x57>;
++			};
++		};
++		i2c@1 {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			reg = <0x1>;
++			fan-temperature-ctrlr@18 {
++				compatible = "ti,amc6821";
++				reg = <0x18>;
++				cooling-min-state = <0>;
++				cooling-max-state = <9>;
++				#cooling-cells = <2>;
++			};
++		};
++		i2c@2 {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			reg = <0x2>;
++			ltc3882@5c {
++				compatible = "ltc3882";
++				reg = <0x5c>;
++			};
++		};
++		i2c@3 {
++			#address-cells = <1>;
++			#size-cells = <0>;
++			reg = <0x3>;
++
++			temperature-sensor@48 {
++				compatible = "nxp,sa56004";
++				reg = <0x48>;
++			};
++		};
++	};
+ };
+ 
+ &i2c4 {
+diff --git a/board/solidrun/lx2160a/eth_lx2160acex7.c b/board/solidrun/lx2160a/eth_lx2160acex7.c
+index 968190f1..f286f72e 100644
+--- a/board/solidrun/lx2160a/eth_lx2160acex7.c
++++ b/board/solidrun/lx2160a/eth_lx2160acex7.c
+@@ -13,11 +13,13 @@
+ #include <phy.h>
+ #include <fm_eth.h>
+ #include <i2c.h>
++#include <sys_eeprom.h>
+ #include <asm/io.h>
+ #include <exports.h>
+ #include <asm/arch/fsl_serdes.h>
+ #include <fsl-mc/fsl_mc.h>
+ #include <fsl-mc/ldpaa_wriop.h>
++#include <fsl-mc/fsl_mc_private.h>
+ 
+ DECLARE_GLOBAL_DATA_PTR;
+ 
+@@ -127,7 +129,7 @@ int board_eth_init(bd_t *bis)
+ 		wriop_set_mdio(WRIOP1_DPMAC17, dev);
+ 	}
+ 
+-next:
++	mac_read_from_eeprom();
+ 	cpu_eth_init(bis);
+ #endif /* CONFIG_FSL_MC_ENET */
+ 
+@@ -145,9 +147,7 @@ void reset_phy(void)
+ 
+ int fdt_fixup_board_phy(void *fdt)
+ {
+-	int mdio_offset;
+ 	int ret;
+-	struct mii_dev *dev;
+ 
+ 	ret = 0;
+ 
+diff --git a/configs/lx2160acex7_tfa_defconfig b/configs/lx2160acex7_tfa_defconfig
+index 97d38770..62ff236e 100644
+--- a/configs/lx2160acex7_tfa_defconfig
++++ b/configs/lx2160acex7_tfa_defconfig
+@@ -38,8 +38,12 @@ CONFIG_SATA_CEVA=y
+ CONFIG_FSL_CAAM=y
+ CONFIG_DM_GPIO=y
+ CONFIG_DM_I2C=y
++CONFIG_MISC=y
+ CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
+ CONFIG_I2C_DEFAULT_BUS_NUMBER=0
++CONFIG_I2C_EEPROM=y
++CONFIG_I2C_MUX=y
++CONFIG_I2C_MUX_PCA954x=y
+ CONFIG_DM_MMC=y
+ CONFIG_FSL_ESDHC=y
+ CONFIG_DM_SPI_FLASH=y
+@@ -59,6 +63,7 @@ CONFIG_CMD_MII=y
+ CONFIG_CMD_DHCP=y
+ CONFIG_CMD_FAT=y
+ CONFIG_CMD_EXT2=y
++CONFIG_CMD_SYS_EEPROM=y
+ CONFIG_E1000=y
+ CONFIG_PCI=y
+ CONFIG_DM_PCI=y
+@@ -81,3 +86,5 @@ CONFIG_USB_XHCI_DWC3=y
+ CONFIG_EFI_LOADER_BOUNCE_BUFFER=y
+ CONFIG_CMD_DATE=y
+ CONFIG_RTC_PCF2127=y
++CONFIG_CMD_MEMORY=y
++CONFIG_CMD_MEMTEST=y
+diff --git a/include/configs/lx2160acex7.h b/include/configs/lx2160acex7.h
+index de075eae..9ba73fc0 100644
+--- a/include/configs/lx2160acex7.h
++++ b/include/configs/lx2160acex7.h
+@@ -48,13 +48,7 @@
+ 
+ 
+ /* EEPROM */
+-#undef CONFIG_ID_EEPROM /* Fixme */
+-#define CONFIG_SYS_I2C_EEPROM_NXID
+-#define CONFIG_SYS_EEPROM_BUS_NUM	           0
+-#define CONFIG_SYS_I2C_EEPROM_ADDR	           0x57
+-#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	    1
+-#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS     3
+-#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 5
++#undef CONFIG_ID_EEPROM /* We use TLV with I2C DM */
+ 
+ /* Initial environment variables */
+ #define CONFIG_EXTRA_ENV_SETTINGS		\
+-- 
+2.25.1
+

patches/u-boot-LSDK-20.04/0027-lx2160a-set-dpaa-mac-registration-as-weak-and-clear-.patch

+From e290dcf25044b3b41406f50065812c69a29d9e64 Mon Sep 17 00:00:00 2001
+From: Rabeeh Khoury <rabeeh@solid-run.com>
+Date: Thu, 17 Dec 2020 18:01:40 +0200
+Subject: [PATCH 27/27] lx2160a: set dpaa mac registration as weak, and clear
+ build warning msgs
+
+1. Set fsl_mc_ldpaa_init so that a board can register the dpmacs in it's
+own order
+2. Cleanup build warning messages which is triggered when using
+CONFIG_I2C_EEPROM required for sys_eeprom feature
+
+Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
+---
+ drivers/net/fsl-mc/mc.c          | 2 +-
+ include/configs/lx2160a_common.h | 5 +++++
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/net/fsl-mc/mc.c b/drivers/net/fsl-mc/mc.c
+index f7602493..2a0ec4a8 100644
+--- a/drivers/net/fsl-mc/mc.c
++++ b/drivers/net/fsl-mc/mc.c
+@@ -915,7 +915,7 @@ unsigned long mc_get_dram_block_size(void)
+ 	return dram_block_size;
+ }
+ 
+-int fsl_mc_ldpaa_init(bd_t *bis)
++__weak int fsl_mc_ldpaa_init(bd_t *bis)
+ {
+ 	int i;
+ 
+diff --git a/include/configs/lx2160a_common.h b/include/configs/lx2160a_common.h
+index 288f0e14..c57b9ce2 100644
+--- a/include/configs/lx2160a_common.h
++++ b/include/configs/lx2160a_common.h
+@@ -119,6 +119,11 @@
+ #define CONFIG_SYS_I2C_RTC_ADDR		0x51  /* Channel 3*/
+ 
+ /* EEPROM */
++#undef CONFIG_SYS_EEPROM_BUS_NUM
++#undef CONFIG_SYS_I2C_EEPROM_ADDR
++#undef CONFIG_SYS_I2C_EEPROM_ADDR_LEN
++#undef CONFIG_SYS_EEPROM_PAGE_WRITE_BITS
++#undef CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS
+ #define CONFIG_ID_EEPROM
+ #define CONFIG_SYS_I2C_EEPROM_NXID
+ #define CONFIG_SYS_EEPROM_BUS_NUM		0
+-- 
+2.25.1
+