[PATCH] board: amlogic: add MMC boot device detection for environment load
Detect eMMC or SD card boot on Odroid-C4/N2 and Khadas VIM3(l) boards and report proper MMC device for the environment loading code. This allows to automatically load and store environment variables on the FAT partition or RAW offset of the MMC device without the need to use different configurations on eMMC and SD card.
To use this feature with environment stored on FAT partition, one has to specify an empty device part (i.e. ":1" for the first partition) in CONFIG_ENV_FAT_DEVICE_AND_PART to let the code to set the device to the value returned by mmc_get_env_dev() function.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com --- board/amlogic/odroid-n2/odroid-n2.c | 8 ++++++++ board/amlogic/vim3/vim3.c | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c index caf7fd6810..12ee5d3abc 100644 --- a/board/amlogic/odroid-n2/odroid-n2.c +++ b/board/amlogic/odroid-n2/odroid-n2.c @@ -10,6 +10,7 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/sm.h> #include <asm/arch/eth.h>
@@ -17,6 +18,13 @@ #define EFUSE_MAC_SIZE 12 #define MAC_ADDR_LEN 6
+int mmc_get_env_dev(void) +{ + if (meson_get_boot_device() == BOOT_DEVICE_EMMC) + return 1; + return 0; +} + int misc_init_r(void) { u8 mac_addr[MAC_ADDR_LEN]; diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c index 09ef39ff30..f9049e0172 100644 --- a/board/amlogic/vim3/vim3.c +++ b/board/amlogic/vim3/vim3.c @@ -10,10 +10,18 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/eth.h> #include <i2c.h> #include "khadas-mcu.h"
+int mmc_get_env_dev(void) +{ + if (meson_get_boot_device() == BOOT_DEVICE_EMMC) + return 2; + return 1; +} + /* * The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential * lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
On 12/18/20 11:26 PM, Marek Szyprowski wrote:
Detect eMMC or SD card boot on Odroid-C4/N2 and Khadas VIM3(l) boards and report proper MMC device for the environment loading code. This allows to automatically load and store environment variables on the FAT partition or RAW offset of the MMC device without the need to use different configurations on eMMC and SD card.
To use this feature with environment stored on FAT partition, one has to specify an empty device part (i.e. ":1" for the first partition) in CONFIG_ENV_FAT_DEVICE_AND_PART to let the code to set the device to the value returned by mmc_get_env_dev() function.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com
Reviewed-by: Jaehoon Chung jh80.chung@samsung.com
Best Regards, Jaehoon Chung
board/amlogic/odroid-n2/odroid-n2.c | 8 ++++++++ board/amlogic/vim3/vim3.c | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c index caf7fd6810..12ee5d3abc 100644 --- a/board/amlogic/odroid-n2/odroid-n2.c +++ b/board/amlogic/odroid-n2/odroid-n2.c @@ -10,6 +10,7 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/sm.h> #include <asm/arch/eth.h>
@@ -17,6 +18,13 @@ #define EFUSE_MAC_SIZE 12 #define MAC_ADDR_LEN 6
+int mmc_get_env_dev(void) +{
- if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
return 1;- return 0;
+}
int misc_init_r(void) { u8 mac_addr[MAC_ADDR_LEN]; diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c index 09ef39ff30..f9049e0172 100644 --- a/board/amlogic/vim3/vim3.c +++ b/board/amlogic/vim3/vim3.c @@ -10,10 +10,18 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/eth.h> #include <i2c.h> #include "khadas-mcu.h"
+int mmc_get_env_dev(void) +{
- if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
return 2;- return 1;
+}
/*
- The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential
- lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
On 18/12/2020 15:26, Marek Szyprowski wrote:
Detect eMMC or SD card boot on Odroid-C4/N2 and Khadas VIM3(l) boards and report proper MMC device for the environment loading code. This allows to automatically load and store environment variables on the FAT partition or RAW offset of the MMC device without the need to use different configurations on eMMC and SD card.
To use this feature with environment stored on FAT partition, one has to specify an empty device part (i.e. ":1" for the first partition) in CONFIG_ENV_FAT_DEVICE_AND_PART to let the code to set the device to the value returned by mmc_get_env_dev() function.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com
board/amlogic/odroid-n2/odroid-n2.c | 8 ++++++++ board/amlogic/vim3/vim3.c | 8 ++++++++ 2 files changed, 16 insertions(+)
diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c index caf7fd6810..12ee5d3abc 100644 --- a/board/amlogic/odroid-n2/odroid-n2.c +++ b/board/amlogic/odroid-n2/odroid-n2.c @@ -10,6 +10,7 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/sm.h> #include <asm/arch/eth.h>
@@ -17,6 +18,13 @@ #define EFUSE_MAC_SIZE 12 #define MAC_ADDR_LEN 6
+int mmc_get_env_dev(void) +{
- if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
return 1;- return 0;
+}
int misc_init_r(void) { u8 mac_addr[MAC_ADDR_LEN]; diff --git a/board/amlogic/vim3/vim3.c b/board/amlogic/vim3/vim3.c index 09ef39ff30..f9049e0172 100644 --- a/board/amlogic/vim3/vim3.c +++ b/board/amlogic/vim3/vim3.c @@ -10,10 +10,18 @@ #include <init.h> #include <net.h> #include <asm/io.h> +#include <asm/arch/boot.h> #include <asm/arch/eth.h> #include <i2c.h> #include "khadas-mcu.h"
+int mmc_get_env_dev(void) +{
- if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
return 2;- return 1;
+}
/*
- The VIM3 on-board MCU can mux the PCIe/USB3.0 shared differential
- lines using a FUSB340TMX USB 3.1 SuperSpeed Data Switch between
Thanks, I would have hoped to have something more generic... but for now it's ok !
Applying to u-boot-amlogic-next
Neil
participants (3)
-
Jaehoon Chung -
Marek Szyprowski -
Neil Armstrong