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cm_t54: add MAC address and env partiton handling

PATCH New Dmitry Lifshitz 4 participants 12 messages Apr 27, 2014 – Jun 25, 2014

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Dmitry Lifshitz

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#0 lore raw

cover cm_t54: add MAC address and env partiton handling

Add Eth MAC address handling, stored in onboard EEPROM.

cm-t54 config defines eMMC as env storage device.
cm-t54 U-Boot environment is stored in the same partition as boot loader. It can be both - eMMC boot or user data partition.
Add support for setting environment partition number in runtime.

Dmitry Lifshitz (3):
cm-t54: add EEPROM support and MAC address handling
env_mmc: support env partition setup in runtime
cm-t54: add environment partition runtime detection

 board/compulab/cm_t54/cm_t54.c |   85 ++++++++++++++++++++++++++++++++++++++++
 common/env_mmc.c               |   35 ++++++++++++----
 include/configs/cm_t54.h       |   10 +++++
 3 files changed, 121 insertions(+), 9 deletions(-)
Signature · 1 line
1.7.5.4
author
#1 lore raw

PATCH 1/3 cm-t54: add EEPROM support and MAC address handling

cm-t54 Eth MAC address is stored in onboard EEPROM. Add EEPROM support and setup stored Eth MAC address.

If EEPROM does not contain a valid MAC, then generate it from the processor ID code (reference code is taken from OMAP5 uEvm board file).

Modify Device Tree blob MAC address field with retrieved data.

Signed-off-by Dmitry Lifshitz <[email protected]>
Acked-by Igor Grinberg <[email protected]>
---
 board/compulab/cm_t54/cm_t54.c |   63 ++++++++++++++++++++++++++++++++++++++++
 include/configs/cm_t54.h       |    9 ++++++
 2 files changed, 72 insertions(+), 0 deletions(-)
board/compulab/cm_t54/cm_t54.c +63 -0
index 1a4be72..574ced2 100644
@@ -9,6 +9,7 @@
  */
 
 #include <common.h>
+#include <fdt_support.h>
 #include <usb.h>
 #include <mmc.h>
 #include <palmas.h>

@@ -20,6 +21,8 @@
 #include <asm/arch/ehci.h>
 #include <asm/ehci-omap.h>
 
+#include "../common/eeprom.h"
+
 #define DIE_ID_REG_BASE		(OMAP54XX_L4_CORE_BASE + 0x2000)
 #define DIE_ID_REG_OFFSET	0x200
 

@@ -99,6 +102,66 @@ int board_mmc_init(bd_t *bis)
 }
 #endif
 
+#ifdef CONFIG_USB_HOST_ETHER
+
+void ft_board_setup(void *blob, bd_t *bd)
+{
+	uint8_t enetaddr[6];
+
+	/* MAC addr */
+	if (eth_getenv_enetaddr("usbethaddr", enetaddr)) {
+		fdt_find_and_setprop(blob, "/smsc95xx at 0", "mac-address",
+				     enetaddr, 6, 1);
+	}
+}
+
+static void generate_mac_addr(uint8_t *enetaddr)
+{
+	int reg;
+
+	reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET;
+
+	/*
+	 * create a fake MAC address from the processor ID code.
+	 * first byte is 0x02 to signify locally administered.
+	 */
+	enetaddr[0] = 0x02;
+	enetaddr[1] = readl(reg + 0x10) & 0xff;
+	enetaddr[2] = readl(reg + 0xC) & 0xff;
+	enetaddr[3] = readl(reg + 0x8) & 0xff;
+	enetaddr[4] = readl(reg) & 0xff;
+	enetaddr[5] = (readl(reg) >> 8) & 0xff;
+}
+
+/*
+ * Routine: handle_mac_address
+ * Description: prepare MAC address for on-board Ethernet.
+ */
+static int handle_mac_address(void)
+{
+	uint8_t enetaddr[6];
+	int ret;
+
+	ret = eth_getenv_enetaddr("usbethaddr", enetaddr);
+	if (ret)
+		return 0;
+
+	ret = cl_eeprom_read_mac_addr(enetaddr);
+	if (!ret || !is_valid_ether_addr(enetaddr))
+		generate_mac_addr(enetaddr);
+
+	if (!is_valid_ether_addr(enetaddr))
+		return -1;
+
+	return eth_setenv_enetaddr("usbethaddr", enetaddr);
+}
+
+int board_eth_init(bd_t *bis)
+{
+	return handle_mac_address();
+}
+#endif
+
 #ifdef CONFIG_USB_EHCI
 static struct omap_usbhs_board_data usbhs_bdata = {
 	.port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
include/configs/cm_t54.h +9 -0
index 3ca229b..8d474f0 100644
@@ -19,6 +19,15 @@
 #undef CONFIG_MISC_INIT_R
 #undef CONFIG_SPL_OS_BOOT
 
+/* Device Tree defines */
+#define CONFIG_OF_LIBFDT
+#define CONFIG_OF_BOARD_SETUP
+
+/* EEPROM related defines */
+#define CONFIG_SYS_I2C_OMAP34XX
+#define CONFIG_SYS_I2C_EEPROM_ADDR	0x50
+#define CONFIG_SYS_I2C_EEPROM_ADDR_LEN	1
+
 /* Enable SD/MMC CD and WP GPIOs */
 #define OMAP_HSMMC_USE_GPIO
Signature · 1 line
1.7.5.4
#2 lore raw

PATCH 1/3 cm-t54: add EEPROM support and MAC address handling

Quoted 10 lines · Dmitry Lifshitz

cm-t54 Eth MAC address is stored in onboard EEPROM. Add EEPROM support and setup stored Eth MAC address.

If EEPROM does not contain a valid MAC, then generate it from the processor ID code (reference code is taken from OMAP5 uEvm board file).

Modify Device Tree blob MAC address field with retrieved data.

Signed-off-by Dmitry Lifshitz <[email protected]>
Acked-by Igor Grinberg <[email protected]>

Applied to u-boot-ti/master, thanks!

Signature · 8 lines
Tom
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author
#3 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

In reply to Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz <[email protected]>
Signed-off-by Igor Grinberg <[email protected]>
---
 common/env_mmc.c |   35 ++++++++++++++++++++++++++---------
 1 files changed, 26 insertions(+), 9 deletions(-)
common/env_mmc.c +26 -9
index 045428c..5d4b5f4 100644
@@ -62,6 +62,30 @@ int env_init(void)
 	return 0;
 }
 
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak uint mmc_get_env_part(struct mmc *mmc)
+{
+	return CONFIG_SYS_MMC_ENV_PART;
+}
+
+static int mmc_set_env_part(struct mmc *mmc)
+{
+	uint part = mmc_get_env_part(mmc);
+
+	if (part != mmc->part_num) {
+		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, part)) {
+			puts("MMC partition switch failed\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+#else
+static inline int mmc_set_env_part(struct mmc *mmc) {return 0; };
+#endif
+
 static int init_mmc_for_env(struct mmc *mmc)
 {
 	if (!mmc) {

@@ -74,15 +98,8 @@ static int init_mmc_for_env(struct mmc *mmc)
 		return -1;
 	}
 
-#ifdef CONFIG_SYS_MMC_ENV_PART
-	if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
-		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
-				    CONFIG_SYS_MMC_ENV_PART)) {
-			puts("MMC partition switch failed\n");
-			return -1;
-		}
-	}
-#endif
+	if (mmc_set_env_part(mmc))
+		return -1;
 
 	return 0;
 }
Signature · 1 line
1.7.5.4
#4 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

ping..

Quoted 63 lines · Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz <[email protected]>
Signed-off-by Igor Grinberg <[email protected]>
---
 common/env_mmc.c |   35 ++++++++++++++++++++++++++---------
 1 files changed, 26 insertions(+), 9 deletions(-)
common/env_mmc.c +26 -9
index 045428c..5d4b5f4 100644
@@ -62,6 +62,30 @@ int env_init(void)
 	return 0;
 }
 
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak uint mmc_get_env_part(struct mmc *mmc)
+{
+	return CONFIG_SYS_MMC_ENV_PART;
+}
+
+static int mmc_set_env_part(struct mmc *mmc)
+{
+	uint part = mmc_get_env_part(mmc);
+
+	if (part != mmc->part_num) {
+		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, part)) {
+			puts("MMC partition switch failed\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+#else
+static inline int mmc_set_env_part(struct mmc *mmc) {return 0; };
+#endif
+
 static int init_mmc_for_env(struct mmc *mmc)
 {
 	if (!mmc) {

@@ -74,15 +98,8 @@ static int init_mmc_for_env(struct mmc *mmc)
 		return -1;
 	}
 
-#ifdef CONFIG_SYS_MMC_ENV_PART
-	if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
-		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
-				    CONFIG_SYS_MMC_ENV_PART)) {
-			puts("MMC partition switch failed\n");
-			return -1;
-		}
-	}
-#endif
+	if (mmc_set_env_part(mmc))
+		return -1;
 
 	return 0;
 }
Signature · 2 lines
Regards,
Igor.
#5 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

Quoted 63 lines · Igor Grinberg

ping..

Quoted 60 lines · Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz <[email protected]>
Signed-off-by Igor Grinberg <[email protected]>
---
 common/env_mmc.c |   35 ++++++++++++++++++++++++++---------
 1 files changed, 26 insertions(+), 9 deletions(-)
common/env_mmc.c +26 -9
index 045428c..5d4b5f4 100644
@@ -62,6 +62,30 @@ int env_init(void)
 	return 0;
 }
 
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak uint mmc_get_env_part(struct mmc *mmc)
+{
+	return CONFIG_SYS_MMC_ENV_PART;
+}
+
+static int mmc_set_env_part(struct mmc *mmc)
+{
+	uint part = mmc_get_env_part(mmc);
+
+	if (part != mmc->part_num) {
+		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, part)) {
+			puts("MMC partition switch failed\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+#else
+static inline int mmc_set_env_part(struct mmc *mmc) {return 0; };
+#endif
+
 static int init_mmc_for_env(struct mmc *mmc)
 {
 	if (!mmc) {

@@ -74,15 +98,8 @@ static int init_mmc_for_env(struct mmc *mmc)
 		return -1;
 	}
 
-#ifdef CONFIG_SYS_MMC_ENV_PART
-	if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
-		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
-				    CONFIG_SYS_MMC_ENV_PART)) {
-			puts("MMC partition switch failed\n");
-			return -1;
-		}
-	}
-#endif
+	if (mmc_set_env_part(mmc))
+		return -1;
Quoted 3 lines

common/env_mmc.c static int init_mmc_for_env(struct mmc *mmc) · line 105

Quoted 3 lines
common/env_mmc.c +0 -0
 	return 0;
 }

Pantelis, weren't you going to pick this up? Thanks!

Signature · 8 lines
Tom
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#6 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Tom,

rc3 is out...

Quoted 10 lines · Tom Rini
Quoted 8 lines · Igor Grinberg

ping..

Quoted 5 lines · Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz <[email protected]>
Signed-off-by Igor Grinberg <[email protected]>

[...]

Quoted 2 lines

Pantelis, weren't you going to pick this up? Thanks!

Can we please have this in for 2014.07?

Thanks!

- --
Regards,
Igor.
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#7 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

In reply to Dmitry Lifshitz

Hi Dmitry,

I took a good look at the patch and there's a problem.

Quoted 45 lines · Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz <[email protected]>
Signed-off-by Igor Grinberg <[email protected]>

---
common/env_mmc.c | 35 ++++++++++++++++++++++++++---------

1 files changed, 26 insertions(+), 9 deletions(-)
common/env_mmc.c +24 -0
index 045428c..5d4b5f4 100644
@@ -62,6 +62,30 @@ int env_init(void)
 	return 0;
 }
 
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak uint mmc_get_env_part(struct mmc *mmc)
+{
+	return CONFIG_SYS_MMC_ENV_PART;
+}
+
+static int mmc_set_env_part(struct mmc *mmc)
+{
+	uint part = mmc_get_env_part(mmc);
+
+	if (part != mmc->part_num) {
+		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, part)) {
+			puts("MMC partition switch failed\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+#else
+static inline int mmc_set_env_part(struct mmc *mmc) {return 0; };
+#endif
+
 static int init_mmc_for_env(struct mmc *mmc)
 {
 	if (!mmc) {

common/env_mmc.c static int init_mmc_for_env(struct mmc *mmc) · line 100

Quoted 3 lines
common/env_mmc.c +0 -0
@@ -74,15 +98,8 @@ static int init_mmc_for_env(struct mmc *mmc)
 		return -1;
 	}

Just before this hunk, we have this:

Quoted 8 lines
common/env_mmc.c +0 -0
 #ifdef CONFIG_SYS_MMC_ENV_PART
        int dev = CONFIG_SYS_MMC_ENV_DEV;
 
 #ifdef CONFIG_SPL_BUILD
        dev = 0;

#endif
#endif

This appears to be broken for SPL in case that CONFIG_SYS_MMC_ENV_DEV is not 0.

SPL hardcoded dev to 0, while mmc_switch_part is implicitly operating on CONFIG_SYS_MMC_ENV_DEV.

Please rework it so that the SPL case is unaffected.

Quoted 12 lines
common/env_mmc.c +2 -9
-#ifdef CONFIG_SYS_MMC_ENV_PART
-	if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
-		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
-				    CONFIG_SYS_MMC_ENV_PART)) {
-			puts("MMC partition switch failed\n");
-			return -1;
-		}
-	}
-#endif
+	if (mmc_set_env_part(mmc))
+		return -1;
Quoted 4 lines
	return 0;
}
Signature · 1 line
1.7.5.4

Regards

-- Pantelis

author
#8 lore raw

PATCH 2/3 env_mmc: support env partition setup in runtime

Hi Pantelis,

Quoted 59 lines · Pantelis Antoniou

Hi Dmitry,

I took a good look at the patch and there's a problem.

Quoted 45 lines · Dmitry Lifshitz

Add callback with __weak annotation to allow setup of environment partition number in runtime from a board file.

Signed-off-by Dmitry Lifshitz<[email protected]>
Signed-off-by Igor Grinberg<[email protected]>

---
common/env_mmc.c | 35 ++++++++++++++++++++++++++---------

1 files changed, 26 insertions(+), 9 deletions(-)
common/env_mmc.c +24 -0
index 045428c..5d4b5f4 100644
@@ -62,6 +62,30 @@ int env_init(void)
 	return 0;
 }
 
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak uint mmc_get_env_part(struct mmc *mmc)
+{
+	return CONFIG_SYS_MMC_ENV_PART;
+}
+
+static int mmc_set_env_part(struct mmc *mmc)
+{
+	uint part = mmc_get_env_part(mmc);
+
+	if (part != mmc->part_num) {
+		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV, part)) {
+			puts("MMC partition switch failed\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+#else
+static inline int mmc_set_env_part(struct mmc *mmc) {return 0; };
+#endif
+
 static int init_mmc_for_env(struct mmc *mmc)
 {
 	if (!mmc) {

common/env_mmc.c static int init_mmc_for_env(struct mmc *mmc) · line 100

Quoted 3 lines
common/env_mmc.c +0 -0
@@ -74,15 +98,8 @@ static int init_mmc_for_env(struct mmc *mmc)
 		return -1;
 	}

Just before this hunk, we have this:

Quoted 3 lines
common/env_mmc.c +0 -0
 #ifdef CONFIG_SYS_MMC_ENV_PART
         int dev = CONFIG_SYS_MMC_ENV_DEV;
Quoted 6 lines
Quoted 5 lines
common/env_mmc.c +0 -0
 #ifdef CONFIG_SPL_BUILD
         dev = 0;

#endif
#endif

This appears to be broken for SPL in case that CONFIG_SYS_MMC_ENV_DEV is not 0.

Exactly as it was broken before the patch, right?

Quoted 4 lines

SPL hardcoded dev to 0, while mmc_switch_part is implicitly operating on CONFIG_SYS_MMC_ENV_DEV.

Please rework it so that the SPL case is unaffected.

This patch does not change the behavior and its purpose is not fixing the current code.

The bug describe can be fixed by later patch and possibly will require additional review and testing.

Given that this patch does not change the behavior, can it be accepted please ?

Regards,

Dmitry

Quoted 17 lines
Quoted 16 lines
common/env_mmc.c +2 -9
-#ifdef CONFIG_SYS_MMC_ENV_PART
-	if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) {
-		if (mmc_switch_part(CONFIG_SYS_MMC_ENV_DEV,
-				    CONFIG_SYS_MMC_ENV_PART)) {
-			puts("MMC partition switch failed\n");
-			return -1;
-		}
-	}
-#endif
+	if (mmc_set_env_part(mmc))
+		return -1;

	return 0;
}
Signature · 1 line
1.7.5.4
author
#9 lore raw

PATCH 3/3 cm-t54: add environment partition runtime detection

In reply to Dmitry Lifshitz

Add environment partition runtime detection callback.

Signed-off-by Dmitry Lifshitz <[email protected]>
Acked-by Igor Grinberg <[email protected]>
---
 board/compulab/cm_t54/cm_t54.c |   22 ++++++++++++++++++++++
 include/configs/cm_t54.h       |    1 +
 2 files changed, 23 insertions(+), 0 deletions(-)
board/compulab/cm_t54/cm_t54.c +22 -0
index 574ced2..11e77f9 100644
@@ -13,6 +13,7 @@
 #include <usb.h>
 #include <mmc.h>
 #include <palmas.h>
+#include <spl.h>
 
 #include <asm/gpio.h>
 #include <asm/arch/sys_proto.h>

@@ -74,6 +75,27 @@ static int cm_t54_palmas_regulator_set(u8 vreg, u8 vval, u8 creg, u8 cval)
 	return 0;
 }
 
+/*
+ * Routine: mmc_get_env_part
+ * Description:  setup environment storage device partition.
+ */
+#ifdef CONFIG_SYS_MMC_ENV_PART
+uint mmc_get_env_part(struct mmc *mmc)
+{
+	u32 bootmode = gd->arch.omap_boot_params.omap_bootmode;
+	uint bootpart = CONFIG_SYS_MMC_ENV_PART;
+
+	/*
+	 * If booted from eMMC boot partition then force eMMC
+	 * FIRST boot partition to be env storage
+	 */
+	if (bootmode == BOOT_DEVICE_MMC2_2)
+		bootpart = 1;
+
+	return bootpart;
+}
+#endif
+
 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
 #define SB_T54_CD_GPIO 228
 #define SB_T54_WP_GPIO 229
include/configs/cm_t54.h +1 -0
index 8d474f0..680aac3 100644
@@ -49,6 +49,7 @@
 
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV		1		/* SLOT2: eMMC(1) */
+#define CONFIG_SYS_MMC_ENV_PART		0
 #define CONFIG_ENV_OFFSET		0xc0000		/* (in bytes) 768 KB */
 #define CONFIG_ENV_SIZE			(16 << 10)	/* 16 KB */
 #define CONFIG_ENV_OFFSET_REDUND	(CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
Signature · 1 line
1.7.5.4
#10 lore raw

PATCH 3/3 cm-t54: add environment partition runtime detection

Quoted 4 lines · Dmitry Lifshitz

Add environment partition runtime detection callback.

Signed-off-by Dmitry Lifshitz <[email protected]>
Acked-by Igor Grinberg <[email protected]>

Applied to u-boot-ti/master, thanks!

Signature · 8 lines
Tom
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#11 lore raw

PATCH 3/3 cm-t54: add environment partition runtime detection

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi Tom,

Quoted 8 lines · Tom Rini
Quoted 4 lines · Dmitry Lifshitz

Add environment partition runtime detection callback.

Signed-off-by Dmitry Lifshitz <[email protected]>
Acked-by Igor Grinberg <[email protected]>

Applied to u-boot-ti/master, thanks!

What about patch 2/3 (env_mmc: support env partition setup in runtime)?

- --
Regards,
Igor.
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