[U-Boot] [PATCH v3 2/3] ARM: omap3: beagle: Enable DM_SERIAL, update distro usage and NAND layout

Derald D. Woods
2018-02-26T23:52:58Z

This commit does the following for BeagleBoard{-xM}:

- Enable DM_SERIAL which also enables SPL_DM_SERIAL
- Misc. config updates in support of DM_SERIAL
- Use updated NAND layout (BeagleBoard):

device nand0 <omap2-nand.0>, # parts = 6

#: name size offset
-------------------------------------------------
0: spl 0x00080000(512k) 0x00000000
1: u-boot 0x001e0000(1920k) 0x00080000
2: u-boot-env 0x00020000(128k) 0x00260000
3: dtb 0x00020000(128k) 0x00280000
4: kernel 0x00600000(6m) 0x002a0000
5: rootfs 0x0f760000(-) 0x008a0000
-------------------------------------------------

- Use MMC and UBIFS support from config_distro_bootcmd.h
- Use LEGACY_MMC and NAND support defined in omap3_beagle.h

[MMC(0:1)/extlinux/extlinux.conf]
---8<-------------------------------------------------------------------
default omap3-beagle-mmc-fat
label omap3-beagle-mmc-fat
kernel /zImage
fdt /omap3-beagle.dtb
append console=ttyO2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait
---8<-------------------------------------------------------------------

[LEGACY_MMC(0:2)/boot/extlinux/extlinux.conf]
---8<-------------------------------------------------------------------
default omap3-beagle-mmc-ext4
label omap3-beagle-mmc-ext4
kernel /boot/zImage
fdt /boot/omap3-beagle.dtb
append console=ttyO2,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait
---8<-------------------------------------------------------------------

[UBIFS(ubi0:rootfs)/boot/extlinux/extlinux.conf]
---8<-------------------------------------------------------------------
default omap3-beagle-nand-ubifs
label omap3-beagle-nand-ubifs
kernel /boot/zImage
fdt /boot/omap3-beagle.dtb
append console=ttyO2,115200n8 root=ubi0:rootfs rw ubi.mtd=rootfs rootfstype=ubifs rootwait
---8<-------------------------------------------------------------------

The board's 'bootcmd' can also be overridden with:

CONFIG_BOOTCOMMAND="run findfdt; run mmcboot"
CONFIG_BOOTCOMMAND="run findfdt; run nandboot"
CONFIG_BOOTCOMMAND="run findfdt; run ramboot"

or

CONFIG_BOOTCOMMAND="run findfdt; run somethingelse"

The use of 'run findfdt' is required.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
---
configs/omap3_beagle_defconfig | 25 ++++-
include/configs/omap3_beagle.h | 239 +++++++++++++++++++++++------------------
2 files changed, 152 insertions(+), 112 deletions(-)

diff --git a/configs/omap3_beagle_defconfig b/configs/omap3_beagle_defconfig
index f0169a4544..35e0b3cd84 100644
--- a/configs/omap3_beagle_defconfig
+++ b/configs/omap3_beagle_defconfig
@@ -4,32 +4,41 @@ CONFIG_SYS_TEXT_BASE=0x80100000
CONFIG_TARGET_OMAP3_BEAGLE=y
CONFIG_DEFAULT_DEVICE_TREE="omap3-beagle"
CONFIG_DISTRO_DEFAULTS=y
-# CONFIG_USE_BOOTCOMMAND is not set
+CONFIG_BOOTCOMMAND="run findfdt; run distro_bootcmd"
CONFIG_SYS_CONSOLE_INFO_QUIET=y
CONFIG_DEFAULT_FDT_FILE="omap3-beagle.dtb"
CONFIG_VERSION_VARIABLE=y
CONFIG_SPL=y
+# CONFIG_SPL_EXT_SUPPORT is not set
CONFIG_SPL_MTD_SUPPORT=y
CONFIG_SPL_OS_BOOT=y
+CONFIG_SYS_PROMPT="BeagleBoard # "
CONFIG_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0x82000000
CONFIG_CMD_SPL=y
-CONFIG_CMD_SPL_NAND_OFS=0x240000
+CONFIG_CMD_SPL_NAND_OFS=0x280000
+CONFIG_CMD_SPL_WRITE_SIZE=0x20000
CONFIG_CMD_ASKENV=y
# CONFIG_CMD_FLASH is not set
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_NAND=y
+CONFIG_CMD_NAND_TRIMFFS=y
CONFIG_CMD_SPI=y
CONFIG_CMD_USB=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_EXT4_WRITE=y
-CONFIG_CMD_MTDPARTS=y
-CONFIG_MTDIDS_DEFAULT="nand0=nand"
-CONFIG_MTDPARTS_DEFAULT="mtdparts=nand:512k(x-loader),1920k(u-boot),128k(u-boot-env),4m(kernel),-(fs)"
+CONFIG_CMD_FS_UUID=y
+CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:512k(spl),1920k(u-boot),128k(u-boot-env),128k(dtb),6m(kernel),-(rootfs)"
+CONFIG_CMD_UBI=y
+# CONFIG_ISO_PARTITION is not set
+# CONFIG_EFI_PARTITION is not set
+CONFIG_SPL_PARTITION_UUIDS=y
CONFIG_OF_CONTROL=y
CONFIG_ENV_IS_IN_NAND=y
+CONFIG_SPL_DM=y
CONFIG_LED_STATUS=y
CONFIG_LED_STATUS0=y
CONFIG_LED_STATUS_BIT=1
@@ -45,11 +54,15 @@ CONFIG_LED_STATUS_CMD=y
CONFIG_MMC_OMAP_HS=y
CONFIG_NAND=y
CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
+CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
+CONFIG_SYS_NAND_U_BOOT_OFFS=0x80000
CONFIG_SPL_NAND_SIMPLE=y
+CONFIG_DM_SERIAL=y
CONFIG_SYS_NS16550=y
CONFIG_OMAP3_SPI=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OMAP3=y
CONFIG_USB_MUSB_GADGET=y
CONFIG_USB_MUSB_OMAP2PLUS=y
CONFIG_TWL4030_USB=y
@@ -65,3 +78,5 @@ CONFIG_USB_ETHER_MCS7830=y
CONFIG_USB_ETHER_SMSC95XX=y
CONFIG_FAT_WRITE=y
CONFIG_BCH=y
+CONFIG_SPL_OF_LIBFDT=y
+# CONFIG_EFI_LOADER is not set
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index ff4e601e55..85b83521e7 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -12,7 +12,7 @@
#ifndef __CONFIG_H
#define __CONFIG_H

-#define CONFIG_NR_DRAM_BANKS 2 /* CS1 may or may not be populated */
+#define CONFIG_NR_DRAM_BANKS 2 /* CS1 may or may not be populated */

#include <configs/ti_omap3_common.h>

@@ -45,22 +45,17 @@
#define CONFIG_SYS_NAND_ECCBYTES 3
#define CONFIG_NAND_OMAP_ECCSCHEME OMAP_ECC_BCH8_CODE_HW_DETECTION_SW
#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x80000
-#define CONFIG_ENV_IS_IN_NAND 1
-#define CONFIG_ENV_SIZE (128 << 10) /* 128 KiB */
-#define CONFIG_SYS_ENV_SECT_SIZE (128 << 10) /* 128 KiB */
+#define CONFIG_SYS_ENV_SECT_SIZE SZ_128K
#define CONFIG_ENV_OFFSET 0x260000
#define CONFIG_ENV_ADDR 0x260000
#define CONFIG_ENV_OVERWRITE
#define CONFIG_MTD_PARTITIONS /* required for UBI partition support */
/* NAND: SPL falcon mode configs */
#if defined(CONFIG_SPL_OS_BOOT)
-#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x280000
+#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x2a0000
#endif /* CONFIG_SPL_OS_BOOT */
#endif /* CONFIG_NAND */

-/* MUSB */
-#define CONFIG_USB_OMAP3
-
/* USB EHCI */
#define CONFIG_OMAP_EHCI_PHY1_RESET_GPIO 147

@@ -73,88 +68,75 @@
/* TWL4030 LED Support */
#define CONFIG_TWL4030_LED

+/* Environment */
+#define CONFIG_ENV_SIZE SZ_128K
+
+#define CONFIG_PREBOOT "usb start"
+
+#define MEM_LAYOUT_ENV_SETTINGS \
+ DEFAULT_LINUX_BOOT_ENV
+
+#define BOOTENV_DEV_LEGACY_MMC(devtypeu, devtypel, instance) \
+ "bootcmd_" #devtypel #instance "=" \
+ "setenv mmcdev " #instance "; " \
+ "run mmcboot\0"
+#define BOOTENV_DEV_NAME_LEGACY_MMC(devtypeu, devtypel, instance) \
+ #devtypel #instance " "
+
+#if defined(CONFIG_NAND)
+
+#define BOOTENV_DEV_NAND(devtypeu, devtypel, instance) \
+ "bootcmd_" #devtypel #instance "=" \
+ "if test ${mtdids} = '' || test ${mtdparts} = '' ; then " \
+ "echo NAND boot disabled: No mtdids and/or mtdparts; " \
+ "else " \
+ "run nandboot; " \
+ "fi\0"
+#define BOOTENV_DEV_NAME_NAND(devtypeu, devtypel, instance) \
+ #devtypel #instance " "
+
#define BOOT_TARGET_DEVICES(func) \
- func(MMC, mmc, 0)
-
-#define CONFIG_BOOTCOMMAND \
- "run findfdt; " \
- "run distro_bootcmd; " \
- "mmc dev ${mmcdev}; if mmc rescan; then " \
- "if run userbutton; then " \
- "setenv bootenv uEnv.txt;" \
- "else " \
- "setenv bootenv user.txt;" \
- "fi;" \
- "echo SD/MMC found on device ${mmcdev};" \
- "if run loadbootenv; then " \
- "echo Loaded environment from ${bootenv};" \
- "run importbootenv;" \
- "fi;" \
- "if test -n $uenvcmd; then " \
- "echo Running uenvcmd ...;" \
- "run uenvcmd;" \
- "fi;" \
- "if run loadbootscript; then " \
- "run bootscript; " \
- "else " \
- "if run loadimage; then " \
- "run loadfdt;" \
- "run mmcboot;" \
- "fi;" \
- "fi; " \
- "fi;" \
- "run nandboot;" \
- "setenv bootfile zImage;" \
- "if run loadimage; then " \
- "run loadfdt;" \
- "run mmcbootz; " \
- "fi; " \
+ func(MMC, mmc, 0) \
+ func(LEGACY_MMC, legacy_mmc, 0) \
+ func(UBIFS, ubifs, 0) \
+ func(NAND, nand, 0)
+
+#else /* !CONFIG_NAND */
+
+#define BOOT_TARGET_DEVICES(func) \
+ func(MMC, mmc, 0) \
+ func(LEGACY_MMC, legacy_mmc, 0)
+
+#endif /* CONFIG_NAND */

#include <config_distro_bootcmd.h>

#define CONFIG_EXTRA_ENV_SETTINGS \
- DEFAULT_LINUX_BOOT_ENV \
+ MEM_LAYOUT_ENV_SETTINGS \
+ "fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
"fdt_high=0xffffffff\0" \
- "usbtty=cdc_acm\0" \
- "bootfile=uImage\0" \
- "ramdisk=ramdisk.gz\0" \
+ "console=ttyO2,115200n8\0" \
"bootdir=/boot\0" \
+ "bootenv=uEnv.txt\0" \
+ "bootfile=zImage\0" \
"bootpart=0:2\0" \
- "console=ttyO2,115200n8\0" \
+ "bootubivol=rootfs\0" \
+ "bootubipart=rootfs\0" \
+ "usbtty=cdc_acm\0" \
"mpurate=auto\0" \
"buddy=none\0" \
- "optargs=\0" \
"camera=none\0" \
"vram=12M\0" \
"dvimode=640x480MR-16 at 60\0" \
"defaultdisplay=dvi\0" \
- "mmcdev=0\0" \
- "mmcroot=/dev/mmcblk0p2 rw\0" \
- "mmcrootfstype=ext4 rootwait\0" \
- "nandroot=ubi0:rootfs ubi.mtd=4\0" \
- "nandrootfstype=ubifs\0" \
- "ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=0x81000000,64M\0" \
- "ramrootfstype=ext2\0" \
- "mmcargs=setenv bootargs console=${console} " \
- "${optargs} " \
- "mpurate=${mpurate} " \
- "buddy=${buddy} "\
- "camera=${camera} "\
- "vram=${vram} " \
- "omapfb.mode=dvi:${dvimode} " \
- "omapdss.def_disp=${defaultdisplay} " \
- "root=${mmcroot} " \
- "rootfstype=${mmcrootfstype}\0" \
- "nandargs=setenv bootargs console=${console} " \
- "${optargs} " \
+ "defaultargs=setenv defargs " \
"mpurate=${mpurate} " \
"buddy=${buddy} "\
"camera=${camera} "\
"vram=${vram} " \
"omapfb.mode=dvi:${dvimode} " \
- "omapdss.def_disp=${defaultdisplay} " \
- "root=${nandroot} " \
- "rootfstype=${nandrootfstype}\0" \
+ "omapdss.def_disp=${defaultdisplay}\0" \
+ "optargs=\0" \
"findfdt=" \
"if test $beaglerev = AxBx; then " \
"setenv fdtfile omap3-beagle.dtb; fi; " \
@@ -167,49 +149,92 @@
"if test $beaglerev = xMC; then " \
"setenv fdtfile omap3-beagle-xm.dtb; fi; " \
"if test $fdtfile = undefined; then " \
- "echo WARNING: Could not determine device tree to use; fi; \0" \
+ "echo WARNING: Could not determine device tree to use; fi\0" \
+ "mmcdev=0\0" \
+ "mmcpart=2\0" \
+ "mmcroot=/dev/mmcblk0p2 rw\0" \
+ "mmcrootfstype=ext4 rootwait\0" \
+ "mmcargs=run defaultargs; setenv bootargs console=${console} " \
+ "${mtdparts} " \
+ "${defargs} " \
+ "${optargs} " \
+ "root=${mmcroot} " \
+ "rootfstype=${mmcrootfstype}\0" \
+ "userbutton_xm=gpio input 4;\0" \
+ "userbutton_nonxm=gpio input 7;\0" \
+ "userbutton=if gpio input 173; then " \
+ "run userbutton_xm; " \
+ "else " \
+ "run userbutton_nonxm; " \
+ "fi;\0" \
+ "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
+ "ext4bootenv=ext4load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootenv}\0" \
+ "importbootenv=echo Importing environment from mmc${mmcdev} ...; " \
+ "env import -t ${loadaddr} ${filesize}\0" \
+ "mmcbootenv=setenv bootpart ${mmcdev}:${mmcpart}; " \
+ "mmc dev ${mmcdev}; " \
+ "if mmc rescan; then " \
+ "if run userbutton; then " \
+ "setenv bootenv uEnv.txt;" \
+ "else " \
+ "setenv bootenv user.txt;" \
+ "fi;" \
+ "run loadbootenv && run importbootenv; " \
+ "run ext4bootenv && run importbootenv; " \
+ "if test -n $uenvcmd; then " \
+ "echo Running uenvcmd ...; " \
+ "run uenvcmd; " \
+ "fi; " \
+ "fi\0" \
"validatefdt=" \
"if test $beaglerev = xMAB; then " \
"if test ! -e mmc ${bootpart} ${bootdir}/${fdtfile}; then " \
"setenv fdtfile omap3-beagle-xm.dtb; " \
"fi; " \
"fi; \0" \
- "bootenv=uEnv.txt\0" \
- "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
- "importbootenv=echo Importing environment from mmc ...; " \
- "env import -t -r $loadaddr $filesize\0" \
- "ramargs=setenv bootargs console=${console} " \
+ "loadimage=ext4load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
+ "loaddtb=run validatefdt; ext4load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
+ "mmcboot=run mmcbootenv; " \
+ "if run loadimage && run loaddtb; then " \
+ "echo Booting ${bootdir}/${bootfile} from mmc ${bootpart} ...; " \
+ "run mmcargs; " \
+ "if test ${bootfile} = uImage; then " \
+ "bootm ${loadaddr} - ${fdtaddr}; " \
+ "fi; " \
+ "if test ${bootfile} = zImage; then " \
+ "bootz ${loadaddr} - ${fdtaddr}; " \
+ "fi; " \
+ "fi\0" \
+ "nandroot=ubi0:rootfs ubi.mtd=rootfs rw\0" \
+ "nandrootfstype=ubifs rootwait\0" \
+ "nandargs=run defaultargs; setenv bootargs console=${console} " \
+ "${mtdparts} " \
+ "${defargs} " \
"${optargs} " \
- "mpurate=${mpurate} " \
- "buddy=${buddy} "\
- "vram=${vram} " \
- "omapfb.mode=dvi:${dvimode} " \
- "omapdss.def_disp=${defaultdisplay} " \
- "root=${ramroot} " \
- "rootfstype=${ramrootfstype}\0" \
- "loadramdisk=load mmc ${bootpart} ${rdaddr} ${bootdir}/${ramdisk}\0" \
- "loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
- "loadbootscript=load mmc ${mmcdev} ${loadaddr} boot.scr\0" \
- "bootscript=echo Running bootscript from mmc${mmcdev} ...; " \
- "source ${loadaddr}\0" \
- "loadfdt=run validatefdt; load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
- "mmcboot=echo Booting ${bootfile} with DT from mmc${mmcdev} ...; " \
- "run mmcargs; " \
- "bootm ${loadaddr} - ${fdtaddr}\0" \
- "mmcbootz=echo Booting ${bootfile} with DT from mmc${mmcdev} ...; " \
- "run mmcargs; " \
- "bootz ${loadaddr} - ${fdtaddr}\0" \
- "nandboot=echo Booting from nand ...; " \
- "run nandargs; " \
- "nand read ${loadaddr} 280000 400000; " \
- "bootm ${loadaddr}\0" \
- "ramboot=echo Booting from ramdisk ...; " \
- "run ramargs; " \
- "bootm ${loadaddr}\0" \
- "userbutton=if gpio input 173; then run userbutton_xm; " \
- "else run userbutton_nonxm; fi;\0" \
- "userbutton_xm=gpio input 4;\0" \
- "userbutton_nonxm=gpio input 7;\0" \
+ "root=${nandroot} " \
+ "rootfstype=${nandrootfstype}\0" \
+ "nandboot=if nand read ${loadaddr} kernel && nand read ${fdtaddr} dtb; then " \
+ "echo Booting uImage from NAND MTD 'kernel' partition ...; " \
+ "run nandargs; " \
+ "bootm ${loadaddr} - ${fdtaddr}; " \
+ "fi\0" \
+ "loadramdisk=ext4load mmc ${bootpart} ${rdaddr} ${bootdir}/${ramdisk}\0" \
+ "ramdisk=rootfs.ext2.gz.uboot\0" \
+ "ramdisk_size=16384\0" \
+ "ramroot=/dev/ram rw\0" \
+ "ramrootfstype=ext2\0" \
+ "ramargs=run defaultargs; setenv bootargs console=${console} " \
+ "${mtdparts} " \
+ "${defargs} " \
+ "${optargs} " \
+ "root=${ramroot} ramdisk_size=${ramdisk_size} " \
+ "rootfstype=${ramrootfstype}\0" \
+ "ramboot=run mmcbootenv; " \
+ "if run loadimage && run loaddtb && run loadramdisk; then " \
+ "echo Booting ${bootdir}/${bootfile} from mmc ${bootpart} w/ramdisk ...; " \
+ "run ramargs; " \
+ "bootz ${loadaddr} ${rdaddr} ${fdtaddr}; " \
+ "fi\0" \
BOOTENV

#endif /* __CONFIG_H */
--

v3:
- Leave environment in NAND

v2:
- 'config_distro_defaults.h' has been removed

--
2.16.2