[U-Boot] [PATCH v3 0/14] split tegra20 arm7 code into separate SPL

Allen Martin
2012-06-08T21:15:53Z

This patch series fixes a long standing problem with the tegra20
u-boot build. Tegra20 contains an ARM7TDMI boot processor and a
Cortex A9 main processor. Prior to this patch series this was
accomplished by #ifdefing out any armv7 code from the early boot
sequence and creating a single binary that runs on both both the
ARM7TDMI and A9. This was very fragile as changes to compiler options
or any additions or rearranging of the early boot code could add
additional armv7 specific code causing it to fail on the ARM7TDMI.

This patch series pulls all the armv4t code out into a separate SPL
that does nothing more than initialize the A9 and transfer control to
it. The resultint SPL and armv7 u-boot are concatenated together into
a single image.

Changes:
v3:
- git bisect still does not work across this series, I'm saving that
for the next revision, but I had enough changes that I wanted to get
this out for review
- expanded the tegra2 -> tegra20 rename to include functions/variables/
defines
- rebased to u-boot-tegra/next
- removed some extra -march=armv4t flags, kept armv4t flags on
warmboot_avp since it's special
- removed bashisms from mkconfig
- renamed CONFIG_MACH_TEGRA_GENERIC to CONFIG_TEGRA
- moved SPL overrides to tegra2-common-post.h
- changed SPL base address to 0x108000, u-boot goes to 0x208000
- moved warboot_save_sdram_params fix to separate patch
- remove USE_PRIVATE_LIBGCC from non SPL build
- expanded SPL support to all tegra20 boards, not just seaboard
v2:
- renamed tegra2 to tegra20 to match kernel and devicetree naming
policy
- pulled all SPL related config overrides to a separate file to clean
up ifdefs from seabard.h
- rebased to TOT u-boot/master and fixed a bug related to init
sequence changes between this patch series and new EMC code
- made u-boot.t2 target work even if CONFIG_OF is disabled
- added back USE_PRIVATE_LIBGCC

[PATCH 01/14] tegra20: rename tegra2 -> tegra20
[PATCH 02/14] tegra20: move tegra20 SoC code to
[PATCH 03/14] tegra20: rename CONFIG_MACH_TEGRA_GENERIC
[PATCH 04/14] mkconfig: add support for SPL CPU
[PATCH 05/14] ARM: Fix arm720t SPL build
[PATCH 06/14] tegra20: remove timer_init from SPL build
[PATCH 07/14] ARM: add tegra20 support to arm720t
[PATCH 08/14] tegra20: add SPL config options for tegra20 boards
[PATCH 09/14] tegra20: add u-boot.t2 target
[PATCH 10/14] tegra: move SDRAM param save to later in boot
[PATCH 11/14] tegra20: Remove CPU init code from tegra20 u-boot
[PATCH 12/14] tegra20: Remove armv4t build flags
[PATCH 13/14] tegra20: plutux: change obj directory mkdir commands
[PATCH 14/14] tegra20: tec: add tegra20-common-post.h

.gitignore | 1 +
MAINTAINERS | 18 +--
Makefile | 14 ++
arch/arm/cpu/arm720t/cpu.c | 2 +
arch/arm/cpu/arm720t/interrupts.c | 4 +
arch/arm/cpu/arm720t/start.S | 19 ++-
.../arm/cpu/arm720t/tegra20}/Makefile | 27 ++--
.../arch-tegra2 => cpu/arm720t/tegra20}/board.h | 11 +-
.../{armv7/tegra2/ap20.c => arm720t/tegra20/cpu.c} | 147 ++------------------
.../ap20.h => cpu/arm720t/tegra20/cpu.h} | 14 +-
arch/arm/cpu/arm720t/tegra20/spl.c | 133 ++++++++++++++++++
arch/arm/cpu/armv7/start.S | 2 -
arch/arm/cpu/armv7/{tegra2 => tegra20}/Makefile | 15 +-
.../cpu/armv7/{tegra2 => tegra20}/cmd_enterrcm.c | 4 +-
arch/arm/cpu/armv7/{tegra2 => tegra20}/config.mk | 12 +-
arch/arm/cpu/armv7/{tegra2 => tegra20}/usb.c | 2 +-
.../cpu/{armv7/tegra2 => tegra20-common}/Makefile | 32 ++---
arch/arm/cpu/tegra20-common/ap20.c | 131 +++++++++++++++++
.../cpu/{armv7/tegra2 => tegra20-common}/board.c | 44 ++----
.../cpu/{armv7/tegra2 => tegra20-common}/clock.c | 10 +-
.../cpu/{armv7/tegra2 => tegra20-common}/crypto.c | 0
.../cpu/{armv7/tegra2 => tegra20-common}/crypto.h | 0
.../arm/cpu/{armv7/tegra2 => tegra20-common}/emc.c | 2 +-
.../cpu/{armv7/tegra2 => tegra20-common}/funcmux.c | 2 +-
.../tegra2 => tegra20-common}/lowlevel_init.S | 0
.../cpu/{armv7/tegra2 => tegra20-common}/pinmux.c | 4 +-
.../arm/cpu/{armv7/tegra2 => tegra20-common}/pmu.c | 2 +-
.../{armv7/tegra2 => tegra20-common}/sys_info.c | 2 +-
.../cpu/{armv7/tegra2 => tegra20-common}/timer.c | 2 +-
.../{armv7/tegra2 => tegra20-common}/warmboot.c | 18 +--
.../tegra2 => tegra20-common}/warmboot_avp.c | 4 +-
.../tegra2 => tegra20-common}/warmboot_avp.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/ap20.h | 4 +-
.../asm/{arch-tegra2 => arch-tegra20}/apb_misc.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/board.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/clk_rst.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/clock.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/emc.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/flow.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/funcmux.h | 2 +-
.../asm/{arch-tegra2 => arch-tegra20}/fuse.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/gp_padctrl.h | 2 +-
.../asm/{arch-tegra2 => arch-tegra20}/gpio.h | 2 +-
arch/arm/include/asm/arch-tegra20/hardware.h | 29 ++++
.../asm/{arch-tegra2 => arch-tegra20}/mmc.h | 8 +-
.../asm/{arch-tegra2 => arch-tegra20}/pinmux.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/pmc.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/pmu.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/scu.h | 0
.../{arch-tegra2 => arch-tegra20}/sdram_param.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/sys_proto.h | 4 +-
.../tegra2.h => arch-tegra20/tegra20.h} | 18 +--
.../asm/{arch-tegra2 => arch-tegra20}/tegra_i2c.h | 2 +-
.../asm/{arch-tegra2 => arch-tegra20}/tegra_spi.h | 4 +-
.../asm/{arch-tegra2 => arch-tegra20}/timer.h | 6 +-
.../uart-spi-switch.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/uart.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/usb.h | 0
.../asm/{arch-tegra2 => arch-tegra20}/warmboot.h | 0
board/avionic-design/common/tamonten.c | 4 +-
.../dts/{tegra2-medcom.dts => tegra20-medcom.dts} | 0
.../dts/{tegra2-plutux.dts => tegra20-plutux.dts} | 0
.../dts/{tegra2-tec.dts => tegra20-tec.dts} | 0
board/avionic-design/plutux/Makefile | 7 +-
.../dts/{tegra2-paz00.dts => tegra20-paz00.dts} | 0
board/compal/paz00/paz00.c | 6 +-
...{tegra2-trimslice.dts => tegra20-trimslice.dts} | 0
board/compulab/trimslice/trimslice.c | 6 +-
board/nvidia/common/board.c | 14 +-
board/nvidia/common/emc.c | 2 +-
board/nvidia/common/uart-spi-switch.c | 2 +-
.../{tegra2-harmony.dts => tegra20-harmony.dts} | 2 +-
.../{tegra2-seaboard.dts => tegra20-seaboard.dts} | 0
.../{tegra2-ventana.dts => tegra20-ventana.dts} | 2 +-
.../{tegra2-whistler.dts => tegra20-whistler.dts} | 2 +-
board/nvidia/harmony/harmony.c | 6 +-
board/nvidia/seaboard/config.mk | 1 +
board/nvidia/seaboard/seaboard.c | 6 +-
board/nvidia/whistler/whistler.c | 6 +-
boards.cfg | 23 +--
doc/README.SPL | 12 ++
drivers/gpio/tegra_gpio.c | 12 +-
drivers/i2c/tegra_i2c.c | 12 +-
drivers/input/Makefile | 2 +-
drivers/mmc/tegra_mmc.c | 32 ++---
drivers/mmc/tegra_mmc.h | 12 +-
drivers/spi/tegra_spi.c | 10 +-
include/configs/harmony.h | 14 +-
include/configs/medcom.h | 12 +-
include/configs/paz00.h | 12 +-
include/configs/plutux.h | 12 +-
include/configs/seaboard.h | 20 +--
include/configs/tec.h | 12 +-
...{tegra2-common-post.h => tegra20-common-post.h} | 73 +++++++++-
.../configs/{tegra2-common.h => tegra20-common.h} | 44 +++---
include/configs/trimslice.h | 14 +-
include/configs/ventana.h | 12 +-
include/configs/whistler.h | 14 +-
include/fdtdec.h | 12 +-
include/serial.h | 2 +-
mkconfig | 13 +-
spl/Makefile | 4 +
102 files changed, 734 insertions(+), 476 deletions(-)

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nvpublic