This patch series are divided into two parts:
The main part is to rewrite the whole architecture code of mt7628: * Lock parts of the d-cache for initial stack so the rest of the code can be reimplemented in C. * Memory controller & DDR initialization have been fully written to support detecting DDR size automatically. * DDR calibration has also been reimplemented with a clear logic. * 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: * 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. * Generate compressed u-boot.bin image for SPL to reduce size of final combined binary. * Enable DM support for SPL for a more flexible device probing. * Add a demo board (mt7628_rfb) aims at router application.
Changes since v2: * Dropped a patch which removes unused parts of mt7628a.dtsi * Move lzma decompression support to common spl_nor.c * Move u-boot,dm-pre-reloc to u-boot-mt7628.dtsi
Changes since v3: * Rebased on newest master branch * Add a test for binman etype u-boot-lzma-img to make sure binman passes 100% code coverage * Use u-boot-with-spl.bin for SPL-enabled output file * Remove unused code from spl_nor loader.
Weijie Gao (20): 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 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: make use of sysreset-resetctrl for mt7628 soc configs: enable CONFIG_RESTORE_EXCEPTION_VECTOR_BASE for all mtmips boards mips: add a mtmips-specific field to architecture-specific global data mips: add a option to support not reserving malloc space on initial stack mips: mtmips: rewrite lowlevel codes of mt7628 dts: mtmips: add alternative pinmux node for uart2 mips: enable support for appending dtb to spl binary mips: add an option to enable u_boot_list section for SPL loaders 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 spl: nor: add lzma decompression support for legacy image mips: mtmips: add SPL support mips: mtmips: enable SPL for all boards mips: mtmips: add support for mt7628-rfb
Makefile | 19 + arch/mips/Kconfig | 66 ++++ arch/mips/cpu/start.S | 16 +- arch/mips/cpu/u-boot-spl.lds | 4 +- arch/mips/dts/Makefile | 1 + arch/mips/dts/mediatek,mt7628-rfb.dts | 67 ++++ arch/mips/dts/mt7628-u-boot.dtsi | 56 +++ arch/mips/dts/mt7628a.dtsi | 17 +- arch/mips/include/asm/global_data.h | 3 + arch/mips/include/asm/u-boot-mips.h | 2 + arch/mips/lib/bootm.c | 3 + arch/mips/lib/traps.c | 19 + arch/mips/mach-mtmips/Kconfig | 135 +++---- 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/include/mach/serial.h | 13 + arch/mips/mach-mtmips/lowlevel_init.S | 328 ------------------ arch/mips/mach-mtmips/mt7628/Makefile | 6 + arch/mips/mach-mtmips/mt7628/ddr.c | 173 +++++++++ arch/mips/mach-mtmips/mt7628/init.c | 109 ++++++ arch/mips/mach-mtmips/mt7628/lowlevel_init.S | 161 +++++++++ arch/mips/mach-mtmips/mt7628/mt7628.h | 104 ++++++ arch/mips/mach-mtmips/mt7628/serial.c | 34 ++ arch/mips/mach-mtmips/mt76xx.h | 32 -- arch/mips/mach-mtmips/spl.c | 44 +++ board/gardena/smart-gateway-mt7688/board.c | 2 + board/mediatek/mt7628/Kconfig | 12 + board/mediatek/mt7628/MAINTAINERS | 7 + board/mediatek/mt7628/Makefile | 3 + board/mediatek/mt7628/board.c | 8 + common/spl/spl_nor.c | 51 ++- ...gardena-smart-gateway-mt7688-ram_defconfig | 74 ---- .../gardena-smart-gateway-mt7688_defconfig | 14 +- configs/linkit-smart-7688-ram_defconfig | 65 ---- configs/linkit-smart-7688_defconfig | 14 +- configs/mt7628_rfb_defconfig | 46 +++ drivers/sysreset/Kconfig | 6 + drivers/sysreset/Makefile | 1 + drivers/sysreset/sysreset_resetctl.c | 48 +++ .../configs/gardena-smart-gateway-mt7688.h | 21 +- include/configs/linkit-smart-7688.h | 22 +- include/configs/mt7628.h | 56 +++ lib/Kconfig | 5 + lib/Makefile | 1 + tools/binman/README.entries | 15 + tools/binman/etype/u_boot_lzma_img.py | 28 ++ tools/binman/ftest.py | 7 + tools/binman/test/156_u_boot_lzma_img.dts | 11 + 53 files changed, 1962 insertions(+), 979 deletions(-) create mode 100644 arch/mips/dts/mediatek,mt7628-rfb.dts create mode 100644 arch/mips/dts/mt7628-u-boot.dtsi 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 create mode 100644 arch/mips/mach-mtmips/include/mach/serial.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 create mode 100644 arch/mips/mach-mtmips/mt7628/serial.c 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 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 create mode 100644 tools/binman/test/156_u_boot_lzma_img.dts