diff options
author | Tom Rini <trini@ti.com> | 2014-03-28 15:03:29 -0400 |
---|---|---|
committer | Tom Rini <trini@ti.com> | 2014-04-17 14:39:54 -0400 |
commit | fb3ad9bd923daafed9818c579d841f05c8ecbeb0 (patch) | |
tree | 74e810425fc4815ca688d5357a80eaebe53bf234 | |
parent | ae1590ed52256bb3bbb45506c005020075fbe49f (diff) |
TI: Add, use a DEFAULT_LINUX_BOOT_ENV environment string
To deal with a reoccurring problem properly we need to specify addresses
for the Linux kernel, Flatted Device Tree and ramdisk that obey the
constraints within the kernel's Documentation/arm/Booting file but also
make sure that we relocate things within a valid address range.
It is possible with these addresses to also set fdt_high and initrd_high
to the value of 0xffffffff. We don't do this by default to allow for
the most likely success of people using custom addresses however.
Signed-off-by: Tom Rini <trini@ti.com>
-rw-r--r-- | include/configs/am335x_evm.h | 5 | ||||
-rw-r--r-- | include/configs/am43xx_evm.h | 5 | ||||
-rw-r--r-- | include/configs/ti_armv7_common.h | 22 | ||||
-rw-r--r-- | include/configs/ti_omap4_common.h | 4 | ||||
-rw-r--r-- | include/configs/ti_omap5_common.h | 5 |
5 files changed, 25 insertions, 16 deletions
diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index ea9e758a69..41485179e4 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -61,11 +61,8 @@ #ifndef CONFIG_SPL_BUILD #define CONFIG_EXTRA_ENV_SETTINGS \ - "loadaddr=0x80200000\0" \ - "fdtaddr=0x80F80000\0" \ - "fdt_high=0xffffffff\0" \ + DEFAULT_LINUX_BOOT_ENV \ "boot_fdt=try\0" \ - "rdaddr=0x81000000\0" \ "bootpart=0:2\0" \ "bootdir=/boot\0" \ "bootfile=zImage\0" \ diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h index 614857dd25..27777c51ba 100644 --- a/include/configs/am43xx_evm.h +++ b/include/configs/am43xx_evm.h @@ -112,10 +112,7 @@ #ifndef CONFIG_SPL_BUILD #define CONFIG_EXTRA_ENV_SETTINGS \ - "loadaddr=0x80200000\0" \ - "fdtaddr=0x80F80000\0" \ - "fdt_high=0xffffffff\0" \ - "rdaddr=0x81000000\0" \ + DEFAULT_LINUX_BOOT_ENV \ "fdtfile=undefined\0" \ "bootpart=0:2\0" \ "bootdir=/boot\0" \ diff --git a/include/configs/ti_armv7_common.h b/include/configs/ti_armv7_common.h index 1127b5b6fb..ec8eec60a9 100644 --- a/include/configs/ti_armv7_common.h +++ b/include/configs/ti_armv7_common.h @@ -36,8 +36,28 @@ /* * Our DDR memory always starts at 0x80000000 and U-Boot shall have * relocated itself to higher in memory by the time this value is used. + * However, set this to a 32MB offset to allow for easier Linux kernel + * booting as the default is often used as the kernel load address. */ -#define CONFIG_SYS_LOAD_ADDR 0x80000000 +#define CONFIG_SYS_LOAD_ADDR 0x82000000 + +/* + * We setup defaults based on constraints from the Linux kernel, which should + * also be safe elsewhere. We have the default load at 32MB into DDR (for + * the kernel), FDT above 128MB (the maximum location for the end of the + * kernel), and the ramdisk 512KB above that (allowing for hopefully never + * seen large trees). We say all of this must be within the first 256MB + * as that will normally be within the kernel lowmem and thus visible via + * bootm_size and we only run on platforms with 256MB or more of memory. + */ +#define DEFAULT_LINUX_BOOT_ENV \ + "loadaddr=0x82000000\0" \ + "kernel_addr_r=0x82000000\0" \ + "fdtaddr=0x88000000\0" \ + "fdt_addr_r=0x88000000\0" \ + "rdaddr=0x88080000\0" \ + "ramdisk_addr_r=0x88080000\0" \ + "bootm_size=0x10000000\0" /* * Default to a quick boot delay. diff --git a/include/configs/ti_omap4_common.h b/include/configs/ti_omap4_common.h index bcb5eabd75..387f570da0 100644 --- a/include/configs/ti_omap4_common.h +++ b/include/configs/ti_omap4_common.h @@ -87,10 +87,8 @@ * Environment setup */ #define CONFIG_EXTRA_ENV_SETTINGS \ - "loadaddr=0x82000000\0" \ + DEFAULT_LINUX_BOOT_ENV \ "console=ttyO2,115200n8\0" \ - "fdt_high=0xffffffff\0" \ - "fdtaddr=0x80f80000\0" \ "fdtfile=undefined\0" \ "bootpart=0:2\0" \ "bootdir=/boot\0" \ diff --git a/include/configs/ti_omap5_common.h b/include/configs/ti_omap5_common.h index 7b10fbd28a..2443d55934 100644 --- a/include/configs/ti_omap5_common.h +++ b/include/configs/ti_omap5_common.h @@ -70,10 +70,7 @@ #endif #define CONFIG_EXTRA_ENV_SETTINGS \ - "loadaddr=0x80200000\0" \ - "fdtaddr=0x80F80000\0" \ - "fdt_high=0xffffffff\0" \ - "rdaddr=0x81000000\0" \ + DEFAULT_LINUX_BOOT_ENV \ "console=" CONSOLEDEV ",115200n8\0" \ "fdtfile=undefined\0" \ "bootpart=0:2\0" \ |