On Wed, Jul 26, 2023 at 08:30:22PM +0800, Du Huanpeng wrote:
Loongson 1C is a cost-effective SOC chip for industrial control and the Internet of Things. The Loongson 1C includes a floating-point processing unit, supports multiple types of memory, and supports high-capacity MLC NAND Flash. Loongson 1C provides developers with a wealth of peripheral interfaces and on-chip modules, including Camera controller, USB OTG and USB HOST interfaces, AC97/I2S controller, LCD controller, SPI interface, UART interface, etc., providing sufficient computing power and multi-application connectivity.
Some highlights of this SoC are:
- Single core LS232, MIPS32 instruction set compatible, main frequency
300MHZ
- 16KB data cache and 16KB instruction cache
- 64 bit float unit, hardware division
- 8/16 bit SDRAM controller, 45 ~ 133MHz
- 8/16 bit SRAM, NAND
- I2S/AC97, LCD, MAC, USB, OTG, SPI, I2C, PWM, CAN, SDIO, ADC
- 12 UARTs
See Techinical Reference Manual for details: https://www.loongson.cn/ https://github.com/hodcarrier/ls1c300_bsp
Signed-off-by: Du Huanpeng dhu@hodcarrier.org
MAINTAINERS | 15 +++++ arch/mips/Kconfig | 11 ++++ arch/mips/Makefile | 1 + arch/mips/dts/Makefile | 1 + arch/mips/mach-lsmips/Kconfig | 76 ++++++++++++++++++++++++++ arch/mips/mach-lsmips/Makefile | 6 ++ arch/mips/mach-lsmips/ls1c300/Makefile | 7 +++ configs/ls1c300_defconfig | 53 ++++++++++++++++++ 8 files changed, 170 insertions(+) create mode 100644 arch/mips/mach-lsmips/Kconfig create mode 100644 arch/mips/mach-lsmips/Makefile create mode 100644 arch/mips/mach-lsmips/ls1c300/Makefile create mode 100644 configs/ls1c300_defconfig
diff --git a/MAINTAINERS b/MAINTAINERS index 87991cccdd..91d6d714d8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1116,6 +1116,21 @@ F: drivers/net/cortina_ni.c F: drivers/net/cortina_ni.h F: drivers/net/phy/ca_phy.c
+MIPS LOONGSON LS1C300 +M: Du Huanpeng dhu@hodcarrier.org +S: Maintained +F: arch/mips/dts/loongson32-ls1c300b.dtsi +F: arch/mips/dts/ls1c300-eval.dts +F: arch/mips/mach-lsmips/ +F: board/loongson/ls1c300-eval/ +F: configs/ls1c300_defconfig +F: drivers/clk/lsmips/ +F: drivers/reset/reset-lsmips.c +F: drivers/watchdog/lsmips_wdt.c +F: include/configs/ls1c300.h +F: include/dt-bindings/clock/ls1c300-clk.h +F: include/dt-bindings/reset/ls1c300-reset.h
The board specific parts should be in the board MAINTAINER file.
+++ b/arch/mips/mach-lsmips/Kconfig @@ -0,0 +1,76 @@ +menu "Loongson MIPS platforms"
- depends on ARCH_LSMIPS
+config SYS_MALLOC_F_LEN
- default 0x1000
+config SYS_SOC
- default "ls1c300" if SOC_LS1C300
+config SYS_DCACHE_SIZE
- default 16384
+config SYS_DCACHE_LINE_SIZE
- default 32
+config SYS_ICACHE_SIZE
- default 16384
+config SYS_ICACHE_LINE_SIZE
- default 32
+config TEXT_BASE
- default 0xbfc00000 if !SPL
- default 0x80200000 if SPL
+config SPL_TEXT_BASE
- default 0xbfc00000
+config SPL_PAYLOAD
- default "u-boot-lzma.img" if SPL_LZMA
+config BUILD_TARGET
- default "u-boot-with-spl.bin" if SPL
- default "u-boot.bin" if !SPL
As most of these are defined in common Kconfig files, the defaults for this arch should be there too.