diff options
Diffstat (limited to 'arch/mips/boot')
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/decompress.c | 3 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/head.S | 20 | ||||
| -rw-r--r-- | arch/mips/boot/dts/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/boot/dts/realtek/Makefile | 2 | ||||
| -rw-r--r-- | arch/mips/boot/dts/realtek/cisco_sg220-26.dts | 25 | ||||
| -rw-r--r-- | arch/mips/boot/dts/realtek/rtl838x.dtsi | 21 | ||||
| -rw-r--r-- | arch/mips/boot/dts/realtek/rtl83xx.dtsi | 59 |
8 files changed, 119 insertions, 13 deletions
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index 47cd9dc7454a..f93f72bcba97 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -37,6 +37,7 @@ KBUILD_AFLAGS := $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ # Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. KCOV_INSTRUMENT := n GCOV_PROFILE := n +UBSAN_SANITIZE := n # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c index c61c641674e6..e3946b06e840 100644 --- a/arch/mips/boot/compressed/decompress.c +++ b/arch/mips/boot/compressed/decompress.c @@ -13,6 +13,7 @@ #include <linux/libfdt.h> #include <asm/addrspace.h> +#include <asm/unaligned.h> /* * These two variables specify the free mem region @@ -117,7 +118,7 @@ void decompress_kernel(unsigned long boot_heap_start) dtb_size = fdt_totalsize((void *)&__appended_dtb); /* last four bytes is always image size in little endian */ - image_size = le32_to_cpup((void *)&__image_end - 4); + image_size = get_unaligned_le32((void *)&__image_end - 4); /* copy dtb to where the booted kernel will expect it */ memcpy((void *)VMLINUX_LOAD_ADDRESS_ULL + image_size, diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S index 409cb483a9ff..5795d0af1e1b 100644 --- a/arch/mips/boot/compressed/head.S +++ b/arch/mips/boot/compressed/head.S @@ -15,10 +15,7 @@ #include <asm/asm.h> #include <asm/regdef.h> - .set noreorder - .cprestore LEAF(start) -start: /* Save boot rom start args */ move s0, a0 move s1, a1 @@ -29,27 +26,26 @@ start: PTR_LA a0, _edata PTR_LA a2, _end 1: sw zero, 0(a0) + addiu a0, a0, 4 bne a2, a0, 1b - addiu a0, a0, 4 PTR_LA a0, (.heap) /* heap address */ PTR_LA sp, (.stack + 8192) /* stack address */ - PTR_LA ra, 2f - PTR_LA k0, decompress_kernel - jr k0 - nop + PTR_LA t9, decompress_kernel + jalr t9 + 2: move a0, s0 move a1, s1 move a2, s2 move a3, s3 - PTR_LI k0, KERNEL_ENTRY - jr k0 - nop + PTR_LI t9, KERNEL_ENTRY + jalr t9 + 3: b 3b - nop + END(start) .comm .heap,BOOT_HEAP_SIZE,4 diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile index 0259238d7a2e..60bd7d2a9ad8 100644 --- a/arch/mips/boot/dts/Makefile +++ b/arch/mips/boot/dts/Makefile @@ -14,6 +14,7 @@ subdir-$(CONFIG_FIT_IMAGE_FDT_NI169445) += ni subdir-$(CONFIG_MACH_PIC32) += pic32 subdir-$(CONFIG_ATH79) += qca subdir-$(CONFIG_RALINK) += ralink +subdir-$(CONFIG_MACH_REALTEK_RTL) += realtek subdir-$(CONFIG_FIT_IMAGE_FDT_XILFPGA) += xilfpga obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix /, $(subdir-y)) diff --git a/arch/mips/boot/dts/realtek/Makefile b/arch/mips/boot/dts/realtek/Makefile new file mode 100644 index 000000000000..fba4e93187a6 --- /dev/null +++ b/arch/mips/boot/dts/realtek/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +dtb-y += cisco_sg220-26.dtb diff --git a/arch/mips/boot/dts/realtek/cisco_sg220-26.dts b/arch/mips/boot/dts/realtek/cisco_sg220-26.dts new file mode 100644 index 000000000000..1cdbb09297ef --- /dev/null +++ b/arch/mips/boot/dts/realtek/cisco_sg220-26.dts @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause + +/dts-v1/; + +#include "rtl83xx.dtsi" +#include "rtl838x.dtsi" + +/ { + model = "Cisco SG220-26"; + compatible = "cisco,sg220-26", "realtek,rtl8382-soc"; + + chosen { + stdout-path = "serial0:9600n8"; + bootargs = "earlycon console=ttyS0,9600"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x8000000>; + }; +}; + +&uart0 { + status = "okay"; +}; diff --git a/arch/mips/boot/dts/realtek/rtl838x.dtsi b/arch/mips/boot/dts/realtek/rtl838x.dtsi new file mode 100644 index 000000000000..6cc4ff5c0d19 --- /dev/null +++ b/arch/mips/boot/dts/realtek/rtl838x.dtsi @@ -0,0 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause + +/ { + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu@0 { + compatible = "mips,mips4KEc"; + reg = <0>; + clocks = <&baseclk 0>; + clock-names = "cpu"; + }; + }; + + baseclk: baseclk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <500000000>; + }; +}; diff --git a/arch/mips/boot/dts/realtek/rtl83xx.dtsi b/arch/mips/boot/dts/realtek/rtl83xx.dtsi new file mode 100644 index 000000000000..de65a111b626 --- /dev/null +++ b/arch/mips/boot/dts/realtek/rtl83xx.dtsi @@ -0,0 +1,59 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause + +/ { + #address-cells = <1>; + #size-cells = <1>; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + }; + + cpuintc: cpuintc { + compatible = "mti,cpu-interrupt-controller"; + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + }; + + soc: soc { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x0 0x18000000 0x10000>; + + uart0: uart@2000 { + compatible = "ns16550a"; + reg = <0x2000 0x100>; + + clock-frequency = <200000000>; + + interrupt-parent = <&cpuintc>; + interrupts = <31>; + + reg-io-width = <1>; + reg-shift = <2>; + fifo-size = <1>; + no-loopback-test; + + status = "disabled"; + }; + + uart1: uart@2100 { + compatible = "ns16550a"; + reg = <0x2100 0x100>; + + clock-frequency = <200000000>; + + interrupt-parent = <&cpuintc>; + interrupts = <30>; + + reg-io-width = <1>; + reg-shift = <2>; + fifo-size = <1>; + no-loopback-test; + + status = "disabled"; + }; + }; +}; |