[PATCH 00/16] Refactor the architecture parts of mt7628

Weijie Gao
2020-01-08T02:59:18Z

This patch series are divided into two parts:

The main part is to rewrite the whole architecture code of mt7628:
1. Lock parts of the d-cache for initial stack so the rest of the code can
be reimplemented in C.
2. Memory controller & DDR initialization have been fully written to support
detecting DDR size automatically.
3. DDR calibration has also been reimplemented with a clear logic.
4. Implemented a new sysreset driver to take advantage of the reset
controller so we can drop the use of syscon-based sysreset to reduce size.

The second part is to add SPL support for mt7628:
1. With SPL enabled we can build the ROM-bootable and RAM-bootable binary
simultaneously, and we can drop RAM boot related configs and defconfig
files.
2. Generate compressed u-boot.bin image for SPL to reduce size of final
combined binary.
3. Add a demo board (mt7628_rfb) to make use of the compressed image.

Weijie Gao (16):
configs: mtmips: add missing board selection for
gardena-smart-gateway-mt7688
mips: add support to restore exception vector base before booting
linux
mips: mtmips: add predefined i-cache/d-cache size and linesize
mips: add an option to support customized get_tbclk()
mips: add an option to support initialize SRAM for initial stack
mips: start.S: avoid overwriting outside gd when clearing global data
in stack
sysreset: add reset controller based reboot driver
mips: mtmips: rewrite lowlevel codes of mt7628
mips: dts: rename mt7628a.dtsi to mt7628.dtsi
mips: unconditionally enable u_boot_list section in u-boot-spl.lds
lib: enable lzma decompression support for SPL build
Makefile: add support to generate LZMA compressed u-boot image
tools: binman: add etype file for u-boot-lzma-img
mips: mtmips: add SPL support
mips: mtmips: enable SPL for all boards
mips: mtmips: add support for mt7628-rfb

Makefile | 22 ++
arch/mips/Kconfig | 32 ++
arch/mips/cpu/start.S | 10 +-
arch/mips/cpu/time.c | 2 +
arch/mips/cpu/u-boot-spl.lds | 2 -
arch/mips/dts/Makefile | 1 +
.../mips/dts/gardena-smart-gateway-mt7688.dts | 2 +-
arch/mips/dts/linkit-smart-7688.dts | 2 +-
arch/mips/dts/mediatek,mt7628-rfb-u-boot.dtsi | 24 ++
arch/mips/dts/mediatek,mt7628-rfb.dts | 67 ++++
arch/mips/dts/mt7628-u-boot.dtsi | 25 ++
arch/mips/dts/{mt7628a.dtsi => mt7628.dtsi} | 78 +----
arch/mips/include/asm/global_data.h | 3 +
arch/mips/lib/bootm.c | 9 +
arch/mips/mach-mtmips/Kconfig | 122 ++-----
arch/mips/mach-mtmips/Makefile | 8 +-
arch/mips/mach-mtmips/cpu.c | 58 +---
arch/mips/mach-mtmips/ddr_cal.c | 211 +++++++++++
arch/mips/mach-mtmips/ddr_calibrate.c | 309 -----------------
arch/mips/mach-mtmips/ddr_init.c | 194 +++++++++++
arch/mips/mach-mtmips/include/mach/ddr.h | 52 +++
arch/mips/mach-mtmips/include/mach/mc.h | 180 ++++++++++
arch/mips/mach-mtmips/lowlevel_init.S | 328 ------------------
arch/mips/mach-mtmips/mt7628/Makefile | 5 +
arch/mips/mach-mtmips/mt7628/ddr.c | 173 +++++++++
arch/mips/mach-mtmips/mt7628/init.c | 109 ++++++
arch/mips/mach-mtmips/mt7628/lowlevel_init.S | 155 +++++++++
arch/mips/mach-mtmips/mt7628/mt7628.h | 90 +++++
arch/mips/mach-mtmips/mt76xx.h | 32 --
arch/mips/mach-mtmips/spl.c | 23 ++
board/gardena/smart-gateway-mt7688/board.c | 2 +
board/mediatek/mt7628/Kconfig | 12 +
board/mediatek/mt7628/MAINTAINERS | 8 +
board/mediatek/mt7628/Makefile | 4 +
board/mediatek/mt7628/board.c | 25 ++
board/mediatek/mt7628/spl_load.c | 102 ++++++
...gardena-smart-gateway-mt7688-ram_defconfig | 74 ----
.../gardena-smart-gateway-mt7688_defconfig | 12 +-
configs/linkit-smart-7688-ram_defconfig | 65 ----
configs/linkit-smart-7688_defconfig | 11 +-
configs/mt7628_rfb_defconfig | 47 +++
drivers/sysreset/Kconfig | 6 +
drivers/sysreset/Makefile | 1 +
drivers/sysreset/sysreset_resetctl.c | 48 +++
.../configs/gardena-smart-gateway-mt7688.h | 18 +-
include/configs/linkit-smart-7688.h | 18 +-
include/configs/mt7628.h | 57 +++
lib/Kconfig | 5 +
lib/Makefile | 1 +
tools/binman/etype/u_boot_lzma_img.py | 27 ++
50 files changed, 1826 insertions(+), 1045 deletions(-)
create mode 100644 arch/mips/dts/mediatek,mt7628-rfb-u-boot.dtsi
create mode 100644 arch/mips/dts/mediatek,mt7628-rfb.dts
create mode 100644 arch/mips/dts/mt7628-u-boot.dtsi
rename arch/mips/dts/{mt7628a.dtsi => mt7628.dtsi} (81%)
create mode 100644 arch/mips/mach-mtmips/ddr_cal.c
delete mode 100644 arch/mips/mach-mtmips/ddr_calibrate.c
create mode 100644 arch/mips/mach-mtmips/ddr_init.c
create mode 100644 arch/mips/mach-mtmips/include/mach/ddr.h
create mode 100644 arch/mips/mach-mtmips/include/mach/mc.h
delete mode 100644 arch/mips/mach-mtmips/lowlevel_init.S
create mode 100644 arch/mips/mach-mtmips/mt7628/Makefile
create mode 100644 arch/mips/mach-mtmips/mt7628/ddr.c
create mode 100644 arch/mips/mach-mtmips/mt7628/init.c
create mode 100644 arch/mips/mach-mtmips/mt7628/lowlevel_init.S
create mode 100644 arch/mips/mach-mtmips/mt7628/mt7628.h
delete mode 100644 arch/mips/mach-mtmips/mt76xx.h
create mode 100644 arch/mips/mach-mtmips/spl.c
create mode 100644 board/mediatek/mt7628/Kconfig
create mode 100644 board/mediatek/mt7628/MAINTAINERS
create mode 100644 board/mediatek/mt7628/Makefile
create mode 100644 board/mediatek/mt7628/board.c
create mode 100644 board/mediatek/mt7628/spl_load.c
delete mode 100644 configs/gardena-smart-gateway-mt7688-ram_defconfig
delete mode 100644 configs/linkit-smart-7688-ram_defconfig
create mode 100644 configs/mt7628_rfb_defconfig
create mode 100644 drivers/sysreset/sysreset_resetctl.c
create mode 100644 include/configs/mt7628.h
create mode 100644 tools/binman/etype/u_boot_lzma_img.py

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2.17.1