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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-26 10:28:35 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-26 10:28:35 -0800
commit8b83369ddcb3fb9cab5c1088987ce477565bb630 (patch)
tree825b1bc89bf731c15c5463befe4e9f14870f0811 /include
parent8f47d753d4ecc6d3e306e22d885d6772625a3423 (diff)
parentd7fbcf40df86bb67193d9faf52138fc1202decb2 (diff)
Merge tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt: "A handful of new RISC-V related patches for this merge window: - A check to ensure drivers are properly using uaccess. This isn't manifesting with any of the drivers I'm currently using, but may catch errors in new drivers. - Some preliminary support for the FU740, along with the HiFive Unleashed it will appear on. - NUMA support for RISC-V, which involves making the arm64 code generic. - Support for kasan on the vmalloc region. - A handful of new drivers for the Kendryte K210, along with the DT plumbing required to boot on a handful of K210-based boards. - Support for allocating ASIDs. - Preliminary support for kernels larger than 128MiB. - Various other improvements to our KASAN support, including the utilization of huge pages when allocating the KASAN regions. We may have already found a bug with the KASAN_VMALLOC code, but it's passing my tests. There's a fix in the works, but that will probably miss the merge window. * tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (75 commits) riscv: Improve kasan population by using hugepages when possible riscv: Improve kasan population function riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization riscv: Improve kasan definitions riscv: Get rid of MAX_EARLY_MAPPING_SIZE soc: canaan: Sort the Makefile alphabetically riscv: Disable KSAN_SANITIZE for vDSO riscv: Remove unnecessary declaration riscv: Add Canaan Kendryte K210 SD card defconfig riscv: Update Canaan Kendryte K210 defconfig riscv: Add Kendryte KD233 board device tree riscv: Add SiPeed MAIXDUINO board device tree riscv: Add SiPeed MAIX GO board device tree riscv: Add SiPeed MAIX DOCK board device tree riscv: Add SiPeed MAIX BiT board device tree riscv: Update Canaan Kendryte K210 device tree dt-bindings: add resets property to dw-apb-timer dt-bindings: fix sifive gpio properties dt-bindings: update sifive uart compatible string dt-bindings: update sifive clint compatible string ...
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/numa.h52
-rw-r--r--include/dt-bindings/clock/k210-clk.h1
-rw-r--r--include/dt-bindings/pinctrl/k210-fpioa.h276
-rw-r--r--include/dt-bindings/reset/k210-rst.h42
-rw-r--r--include/linux/initrd.h11
-rw-r--r--include/soc/canaan/k210-sysctl.h43
6 files changed, 424 insertions, 1 deletions
diff --git a/include/asm-generic/numa.h b/include/asm-generic/numa.h
new file mode 100644
index 000000000000..1a3ad6d29833
--- /dev/null
+++ b/include/asm-generic/numa.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_GENERIC_NUMA_H
+#define __ASM_GENERIC_NUMA_H
+
+#ifdef CONFIG_NUMA
+
+#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
+
+int __node_distance(int from, int to);
+#define node_distance(a, b) __node_distance(a, b)
+
+extern nodemask_t numa_nodes_parsed __initdata;
+
+extern bool numa_off;
+
+/* Mappings between node number and cpus on that node. */
+extern cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
+void numa_clear_node(unsigned int cpu);
+
+#ifdef CONFIG_DEBUG_PER_CPU_MAPS
+const struct cpumask *cpumask_of_node(int node);
+#else
+/* Returns a pointer to the cpumask of CPUs on Node 'node'. */
+static inline const struct cpumask *cpumask_of_node(int node)
+{
+ if (node == NUMA_NO_NODE)
+ return cpu_all_mask;
+
+ return node_to_cpumask_map[node];
+}
+#endif
+
+void __init arch_numa_init(void);
+int __init numa_add_memblk(int nodeid, u64 start, u64 end);
+void __init numa_set_distance(int from, int to, int distance);
+void __init numa_free_distance(void);
+void __init early_map_cpu_to_node(unsigned int cpu, int nid);
+void numa_store_cpu_info(unsigned int cpu);
+void numa_add_cpu(unsigned int cpu);
+void numa_remove_cpu(unsigned int cpu);
+
+#else /* CONFIG_NUMA */
+
+static inline void numa_store_cpu_info(unsigned int cpu) { }
+static inline void numa_add_cpu(unsigned int cpu) { }
+static inline void numa_remove_cpu(unsigned int cpu) { }
+static inline void arch_numa_init(void) { }
+static inline void early_map_cpu_to_node(unsigned int cpu, int nid) { }
+
+#endif /* CONFIG_NUMA */
+
+#endif /* __ASM_GENERIC_NUMA_H */
diff --git a/include/dt-bindings/clock/k210-clk.h b/include/dt-bindings/clock/k210-clk.h
index a48176ad3c23..b2de702cbf75 100644
--- a/include/dt-bindings/clock/k210-clk.h
+++ b/include/dt-bindings/clock/k210-clk.h
@@ -9,7 +9,6 @@
/*
* Kendryte K210 SoC clock identifiers (arbitrary values).
*/
-#define K210_CLK_ACLK 0
#define K210_CLK_CPU 0
#define K210_CLK_SRAM0 1
#define K210_CLK_SRAM1 2
diff --git a/include/dt-bindings/pinctrl/k210-fpioa.h b/include/dt-bindings/pinctrl/k210-fpioa.h
new file mode 100644
index 000000000000..314285eab3a1
--- /dev/null
+++ b/include/dt-bindings/pinctrl/k210-fpioa.h
@@ -0,0 +1,276 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
+ * Copyright (c) 2020 Western Digital Corporation or its affiliates.
+ */
+#ifndef PINCTRL_K210_FPIOA_H
+#define PINCTRL_K210_FPIOA_H
+
+/*
+ * Full list of FPIOA functions from
+ * kendryte-standalone-sdk/lib/drivers/include/fpioa.h
+ */
+#define K210_PCF_MASK GENMASK(7, 0)
+#define K210_PCF_JTAG_TCLK 0 /* JTAG Test Clock */
+#define K210_PCF_JTAG_TDI 1 /* JTAG Test Data In */
+#define K210_PCF_JTAG_TMS 2 /* JTAG Test Mode Select */
+#define K210_PCF_JTAG_TDO 3 /* JTAG Test Data Out */
+#define K210_PCF_SPI0_D0 4 /* SPI0 Data 0 */
+#define K210_PCF_SPI0_D1 5 /* SPI0 Data 1 */
+#define K210_PCF_SPI0_D2 6 /* SPI0 Data 2 */
+#define K210_PCF_SPI0_D3 7 /* SPI0 Data 3 */
+#define K210_PCF_SPI0_D4 8 /* SPI0 Data 4 */
+#define K210_PCF_SPI0_D5 9 /* SPI0 Data 5 */
+#define K210_PCF_SPI0_D6 10 /* SPI0 Data 6 */
+#define K210_PCF_SPI0_D7 11 /* SPI0 Data 7 */
+#define K210_PCF_SPI0_SS0 12 /* SPI0 Chip Select 0 */
+#define K210_PCF_SPI0_SS1 13 /* SPI0 Chip Select 1 */
+#define K210_PCF_SPI0_SS2 14 /* SPI0 Chip Select 2 */
+#define K210_PCF_SPI0_SS3 15 /* SPI0 Chip Select 3 */
+#define K210_PCF_SPI0_ARB 16 /* SPI0 Arbitration */
+#define K210_PCF_SPI0_SCLK 17 /* SPI0 Serial Clock */
+#define K210_PCF_UARTHS_RX 18 /* UART High speed Receiver */
+#define K210_PCF_UARTHS_TX 19 /* UART High speed Transmitter */
+#define K210_PCF_RESV6 20 /* Reserved function */
+#define K210_PCF_RESV7 21 /* Reserved function */
+#define K210_PCF_CLK_SPI1 22 /* Clock SPI1 */
+#define K210_PCF_CLK_I2C1 23 /* Clock I2C1 */
+#define K210_PCF_GPIOHS0 24 /* GPIO High speed 0 */
+#define K210_PCF_GPIOHS1 25 /* GPIO High speed 1 */
+#define K210_PCF_GPIOHS2 26 /* GPIO High speed 2 */
+#define K210_PCF_GPIOHS3 27 /* GPIO High speed 3 */
+#define K210_PCF_GPIOHS4 28 /* GPIO High speed 4 */
+#define K210_PCF_GPIOHS5 29 /* GPIO High speed 5 */
+#define K210_PCF_GPIOHS6 30 /* GPIO High speed 6 */
+#define K210_PCF_GPIOHS7 31 /* GPIO High speed 7 */
+#define K210_PCF_GPIOHS8 32 /* GPIO High speed 8 */
+#define K210_PCF_GPIOHS9 33 /* GPIO High speed 9 */
+#define K210_PCF_GPIOHS10 34 /* GPIO High speed 10 */
+#define K210_PCF_GPIOHS11 35 /* GPIO High speed 11 */
+#define K210_PCF_GPIOHS12 36 /* GPIO High speed 12 */
+#define K210_PCF_GPIOHS13 37 /* GPIO High speed 13 */
+#define K210_PCF_GPIOHS14 38 /* GPIO High speed 14 */
+#define K210_PCF_GPIOHS15 39 /* GPIO High speed 15 */
+#define K210_PCF_GPIOHS16 40 /* GPIO High speed 16 */
+#define K210_PCF_GPIOHS17 41 /* GPIO High speed 17 */
+#define K210_PCF_GPIOHS18 42 /* GPIO High speed 18 */
+#define K210_PCF_GPIOHS19 43 /* GPIO High speed 19 */
+#define K210_PCF_GPIOHS20 44 /* GPIO High speed 20 */
+#define K210_PCF_GPIOHS21 45 /* GPIO High speed 21 */
+#define K210_PCF_GPIOHS22 46 /* GPIO High speed 22 */
+#define K210_PCF_GPIOHS23 47 /* GPIO High speed 23 */
+#define K210_PCF_GPIOHS24 48 /* GPIO High speed 24 */
+#define K210_PCF_GPIOHS25 49 /* GPIO High speed 25 */
+#define K210_PCF_GPIOHS26 50 /* GPIO High speed 26 */
+#define K210_PCF_GPIOHS27 51 /* GPIO High speed 27 */
+#define K210_PCF_GPIOHS28 52 /* GPIO High speed 28 */
+#define K210_PCF_GPIOHS29 53 /* GPIO High speed 29 */
+#define K210_PCF_GPIOHS30 54 /* GPIO High speed 30 */
+#define K210_PCF_GPIOHS31 55 /* GPIO High speed 31 */
+#define K210_PCF_GPIO0 56 /* GPIO pin 0 */
+#define K210_PCF_GPIO1 57 /* GPIO pin 1 */
+#define K210_PCF_GPIO2 58 /* GPIO pin 2 */
+#define K210_PCF_GPIO3 59 /* GPIO pin 3 */
+#define K210_PCF_GPIO4 60 /* GPIO pin 4 */
+#define K210_PCF_GPIO5 61 /* GPIO pin 5 */
+#define K210_PCF_GPIO6 62 /* GPIO pin 6 */
+#define K210_PCF_GPIO7 63 /* GPIO pin 7 */
+#define K210_PCF_UART1_RX 64 /* UART1 Receiver */
+#define K210_PCF_UART1_TX 65 /* UART1 Transmitter */
+#define K210_PCF_UART2_RX 66 /* UART2 Receiver */
+#define K210_PCF_UART2_TX 67 /* UART2 Transmitter */
+#define K210_PCF_UART3_RX 68 /* UART3 Receiver */
+#define K210_PCF_UART3_TX 69 /* UART3 Transmitter */
+#define K210_PCF_SPI1_D0 70 /* SPI1 Data 0 */
+#define K210_PCF_SPI1_D1 71 /* SPI1 Data 1 */
+#define K210_PCF_SPI1_D2 72 /* SPI1 Data 2 */
+#define K210_PCF_SPI1_D3 73 /* SPI1 Data 3 */
+#define K210_PCF_SPI1_D4 74 /* SPI1 Data 4 */
+#define K210_PCF_SPI1_D5 75 /* SPI1 Data 5 */
+#define K210_PCF_SPI1_D6 76 /* SPI1 Data 6 */
+#define K210_PCF_SPI1_D7 77 /* SPI1 Data 7 */
+#define K210_PCF_SPI1_SS0 78 /* SPI1 Chip Select 0 */
+#define K210_PCF_SPI1_SS1 79 /* SPI1 Chip Select 1 */
+#define K210_PCF_SPI1_SS2 80 /* SPI1 Chip Select 2 */
+#define K210_PCF_SPI1_SS3 81 /* SPI1 Chip Select 3 */
+#define K210_PCF_SPI1_ARB 82 /* SPI1 Arbitration */
+#define K210_PCF_SPI1_SCLK 83 /* SPI1 Serial Clock */
+#define K210_PCF_SPI2_D0 84 /* SPI2 Data 0 */
+#define K210_PCF_SPI2_SS 85 /* SPI2 Select */
+#define K210_PCF_SPI2_SCLK 86 /* SPI2 Serial Clock */
+#define K210_PCF_I2S0_MCLK 87 /* I2S0 Master Clock */
+#define K210_PCF_I2S0_SCLK 88 /* I2S0 Serial Clock(BCLK) */
+#define K210_PCF_I2S0_WS 89 /* I2S0 Word Select(LRCLK) */
+#define K210_PCF_I2S0_IN_D0 90 /* I2S0 Serial Data Input 0 */
+#define K210_PCF_I2S0_IN_D1 91 /* I2S0 Serial Data Input 1 */
+#define K210_PCF_I2S0_IN_D2 92 /* I2S0 Serial Data Input 2 */
+#define K210_PCF_I2S0_IN_D3 93 /* I2S0 Serial Data Input 3 */
+#define K210_PCF_I2S0_OUT_D0 94 /* I2S0 Serial Data Output 0 */
+#define K210_PCF_I2S0_OUT_D1 95 /* I2S0 Serial Data Output 1 */
+#define K210_PCF_I2S0_OUT_D2 96 /* I2S0 Serial Data Output 2 */
+#define K210_PCF_I2S0_OUT_D3 97 /* I2S0 Serial Data Output 3 */
+#define K210_PCF_I2S1_MCLK 98 /* I2S1 Master Clock */
+#define K210_PCF_I2S1_SCLK 99 /* I2S1 Serial Clock(BCLK) */
+#define K210_PCF_I2S1_WS 100 /* I2S1 Word Select(LRCLK) */
+#define K210_PCF_I2S1_IN_D0 101 /* I2S1 Serial Data Input 0 */
+#define K210_PCF_I2S1_IN_D1 102 /* I2S1 Serial Data Input 1 */
+#define K210_PCF_I2S1_IN_D2 103 /* I2S1 Serial Data Input 2 */
+#define K210_PCF_I2S1_IN_D3 104 /* I2S1 Serial Data Input 3 */
+#define K210_PCF_I2S1_OUT_D0 105 /* I2S1 Serial Data Output 0 */
+#define K210_PCF_I2S1_OUT_D1 106 /* I2S1 Serial Data Output 1 */
+#define K210_PCF_I2S1_OUT_D2 107 /* I2S1 Serial Data Output 2 */
+#define K210_PCF_I2S1_OUT_D3 108 /* I2S1 Serial Data Output 3 */
+#define K210_PCF_I2S2_MCLK 109 /* I2S2 Master Clock */
+#define K210_PCF_I2S2_SCLK 110 /* I2S2 Serial Clock(BCLK) */
+#define K210_PCF_I2S2_WS 111 /* I2S2 Word Select(LRCLK) */
+#define K210_PCF_I2S2_IN_D0 112 /* I2S2 Serial Data Input 0 */
+#define K210_PCF_I2S2_IN_D1 113 /* I2S2 Serial Data Input 1 */
+#define K210_PCF_I2S2_IN_D2 114 /* I2S2 Serial Data Input 2 */
+#define K210_PCF_I2S2_IN_D3 115 /* I2S2 Serial Data Input 3 */
+#define K210_PCF_I2S2_OUT_D0 116 /* I2S2 Serial Data Output 0 */
+#define K210_PCF_I2S2_OUT_D1 117 /* I2S2 Serial Data Output 1 */
+#define K210_PCF_I2S2_OUT_D2 118 /* I2S2 Serial Data Output 2 */
+#define K210_PCF_I2S2_OUT_D3 119 /* I2S2 Serial Data Output 3 */
+#define K210_PCF_RESV0 120 /* Reserved function */
+#define K210_PCF_RESV1 121 /* Reserved function */
+#define K210_PCF_RESV2 122 /* Reserved function */
+#define K210_PCF_RESV3 123 /* Reserved function */
+#define K210_PCF_RESV4 124 /* Reserved function */
+#define K210_PCF_RESV5 125 /* Reserved function */
+#define K210_PCF_I2C0_SCLK 126 /* I2C0 Serial Clock */
+#define K210_PCF_I2C0_SDA 127 /* I2C0 Serial Data */
+#define K210_PCF_I2C1_SCLK 128 /* I2C1 Serial Clock */
+#define K210_PCF_I2C1_SDA 129 /* I2C1 Serial Data */
+#define K210_PCF_I2C2_SCLK 130 /* I2C2 Serial Clock */
+#define K210_PCF_I2C2_SDA 131 /* I2C2 Serial Data */
+#define K210_PCF_DVP_XCLK 132 /* DVP System Clock */
+#define K210_PCF_DVP_RST 133 /* DVP System Reset */
+#define K210_PCF_DVP_PWDN 134 /* DVP Power Down Mode */
+#define K210_PCF_DVP_VSYNC 135 /* DVP Vertical Sync */
+#define K210_PCF_DVP_HSYNC 136 /* DVP Horizontal Sync */
+#define K210_PCF_DVP_PCLK 137 /* Pixel Clock */
+#define K210_PCF_DVP_D0 138 /* Data Bit 0 */
+#define K210_PCF_DVP_D1 139 /* Data Bit 1 */
+#define K210_PCF_DVP_D2 140 /* Data Bit 2 */
+#define K210_PCF_DVP_D3 141 /* Data Bit 3 */
+#define K210_PCF_DVP_D4 142 /* Data Bit 4 */
+#define K210_PCF_DVP_D5 143 /* Data Bit 5 */
+#define K210_PCF_DVP_D6 144 /* Data Bit 6 */
+#define K210_PCF_DVP_D7 145 /* Data Bit 7 */
+#define K210_PCF_SCCB_SCLK 146 /* Serial Camera Control Bus Clock */
+#define K210_PCF_SCCB_SDA 147 /* Serial Camera Control Bus Data */
+#define K210_PCF_UART1_CTS 148 /* UART1 Clear To Send */
+#define K210_PCF_UART1_DSR 149 /* UART1 Data Set Ready */
+#define K210_PCF_UART1_DCD 150 /* UART1 Data Carrier Detect */
+#define K210_PCF_UART1_RI 151 /* UART1 Ring Indicator */
+#define K210_PCF_UART1_SIR_IN 152 /* UART1 Serial Infrared Input */
+#define K210_PCF_UART1_DTR 153 /* UART1 Data Terminal Ready */
+#define K210_PCF_UART1_RTS 154 /* UART1 Request To Send */
+#define K210_PCF_UART1_OUT2 155 /* UART1 User-designated Output 2 */
+#define K210_PCF_UART1_OUT1 156 /* UART1 User-designated Output 1 */
+#define K210_PCF_UART1_SIR_OUT 157 /* UART1 Serial Infrared Output */
+#define K210_PCF_UART1_BAUD 158 /* UART1 Transmit Clock Output */
+#define K210_PCF_UART1_RE 159 /* UART1 Receiver Output Enable */
+#define K210_PCF_UART1_DE 160 /* UART1 Driver Output Enable */
+#define K210_PCF_UART1_RS485_EN 161 /* UART1 RS485 Enable */
+#define K210_PCF_UART2_CTS 162 /* UART2 Clear To Send */
+#define K210_PCF_UART2_DSR 163 /* UART2 Data Set Ready */
+#define K210_PCF_UART2_DCD 164 /* UART2 Data Carrier Detect */
+#define K210_PCF_UART2_RI 165 /* UART2 Ring Indicator */
+#define K210_PCF_UART2_SIR_IN 166 /* UART2 Serial Infrared Input */
+#define K210_PCF_UART2_DTR 167 /* UART2 Data Terminal Ready */
+#define K210_PCF_UART2_RTS 168 /* UART2 Request To Send */
+#define K210_PCF_UART2_OUT2 169 /* UART2 User-designated Output 2 */
+#define K210_PCF_UART2_OUT1 170 /* UART2 User-designated Output 1 */
+#define K210_PCF_UART2_SIR_OUT 171 /* UART2 Serial Infrared Output */
+#define K210_PCF_UART2_BAUD 172 /* UART2 Transmit Clock Output */
+#define K210_PCF_UART2_RE 173 /* UART2 Receiver Output Enable */
+#define K210_PCF_UART2_DE 174 /* UART2 Driver Output Enable */
+#define K210_PCF_UART2_RS485_EN 175 /* UART2 RS485 Enable */
+#define K210_PCF_UART3_CTS 176 /* UART3 Clear To Send */
+#define K210_PCF_UART3_DSR 177 /* UART3 Data Set Ready */
+#define K210_PCF_UART3_DCD 178 /* UART3 Data Carrier Detect */
+#define K210_PCF_UART3_RI 179 /* UART3 Ring Indicator */
+#define K210_PCF_UART3_SIR_IN 180 /* UART3 Serial Infrared Input */
+#define K210_PCF_UART3_DTR 181 /* UART3 Data Terminal Ready */
+#define K210_PCF_UART3_RTS 182 /* UART3 Request To Send */
+#define K210_PCF_UART3_OUT2 183 /* UART3 User-designated Output 2 */
+#define K210_PCF_UART3_OUT1 184 /* UART3 User-designated Output 1 */
+#define K210_PCF_UART3_SIR_OUT 185 /* UART3 Serial Infrared Output */
+#define K210_PCF_UART3_BAUD 186 /* UART3 Transmit Clock Output */
+#define K210_PCF_UART3_RE 187 /* UART3 Receiver Output Enable */
+#define K210_PCF_UART3_DE 188 /* UART3 Driver Output Enable */
+#define K210_PCF_UART3_RS485_EN 189 /* UART3 RS485 Enable */
+#define K210_PCF_TIMER0_TOGGLE1 190 /* TIMER0 Toggle Output 1 */
+#define K210_PCF_TIMER0_TOGGLE2 191 /* TIMER0 Toggle Output 2 */
+#define K210_PCF_TIMER0_TOGGLE3 192 /* TIMER0 Toggle Output 3 */
+#define K210_PCF_TIMER0_TOGGLE4 193 /* TIMER0 Toggle Output 4 */
+#define K210_PCF_TIMER1_TOGGLE1 194 /* TIMER1 Toggle Output 1 */
+#define K210_PCF_TIMER1_TOGGLE2 195 /* TIMER1 Toggle Output 2 */
+#define K210_PCF_TIMER1_TOGGLE3 196 /* TIMER1 Toggle Output 3 */
+#define K210_PCF_TIMER1_TOGGLE4 197 /* TIMER1 Toggle Output 4 */
+#define K210_PCF_TIMER2_TOGGLE1 198 /* TIMER2 Toggle Output 1 */
+#define K210_PCF_TIMER2_TOGGLE2 199 /* TIMER2 Toggle Output 2 */
+#define K210_PCF_TIMER2_TOGGLE3 200 /* TIMER2 Toggle Output 3 */
+#define K210_PCF_TIMER2_TOGGLE4 201 /* TIMER2 Toggle Output 4 */
+#define K210_PCF_CLK_SPI2 202 /* Clock SPI2 */
+#define K210_PCF_CLK_I2C2 203 /* Clock I2C2 */
+#define K210_PCF_INTERNAL0 204 /* Internal function signal 0 */
+#define K210_PCF_INTERNAL1 205 /* Internal function signal 1 */
+#define K210_PCF_INTERNAL2 206 /* Internal function signal 2 */
+#define K210_PCF_INTERNAL3 207 /* Internal function signal 3 */
+#define K210_PCF_INTERNAL4 208 /* Internal function signal 4 */
+#define K210_PCF_INTERNAL5 209 /* Internal function signal 5 */
+#define K210_PCF_INTERNAL6 210 /* Internal function signal 6 */
+#define K210_PCF_INTERNAL7 211 /* Internal function signal 7 */
+#define K210_PCF_INTERNAL8 212 /* Internal function signal 8 */
+#define K210_PCF_INTERNAL9 213 /* Internal function signal 9 */
+#define K210_PCF_INTERNAL10 214 /* Internal function signal 10 */
+#define K210_PCF_INTERNAL11 215 /* Internal function signal 11 */
+#define K210_PCF_INTERNAL12 216 /* Internal function signal 12 */
+#define K210_PCF_INTERNAL13 217 /* Internal function signal 13 */
+#define K210_PCF_INTERNAL14 218 /* Internal function signal 14 */
+#define K210_PCF_INTERNAL15 219 /* Internal function signal 15 */
+#define K210_PCF_INTERNAL16 220 /* Internal function signal 16 */
+#define K210_PCF_INTERNAL17 221 /* Internal function signal 17 */
+#define K210_PCF_CONSTANT 222 /* Constant function */
+#define K210_PCF_INTERNAL18 223 /* Internal function signal 18 */
+#define K210_PCF_DEBUG0 224 /* Debug function 0 */
+#define K210_PCF_DEBUG1 225 /* Debug function 1 */
+#define K210_PCF_DEBUG2 226 /* Debug function 2 */
+#define K210_PCF_DEBUG3 227 /* Debug function 3 */
+#define K210_PCF_DEBUG4 228 /* Debug function 4 */
+#define K210_PCF_DEBUG5 229 /* Debug function 5 */
+#define K210_PCF_DEBUG6 230 /* Debug function 6 */
+#define K210_PCF_DEBUG7 231 /* Debug function 7 */
+#define K210_PCF_DEBUG8 232 /* Debug function 8 */
+#define K210_PCF_DEBUG9 233 /* Debug function 9 */
+#define K210_PCF_DEBUG10 234 /* Debug function 10 */
+#define K210_PCF_DEBUG11 235 /* Debug function 11 */
+#define K210_PCF_DEBUG12 236 /* Debug function 12 */
+#define K210_PCF_DEBUG13 237 /* Debug function 13 */
+#define K210_PCF_DEBUG14 238 /* Debug function 14 */
+#define K210_PCF_DEBUG15 239 /* Debug function 15 */
+#define K210_PCF_DEBUG16 240 /* Debug function 16 */
+#define K210_PCF_DEBUG17 241 /* Debug function 17 */
+#define K210_PCF_DEBUG18 242 /* Debug function 18 */
+#define K210_PCF_DEBUG19 243 /* Debug function 19 */
+#define K210_PCF_DEBUG20 244 /* Debug function 20 */
+#define K210_PCF_DEBUG21 245 /* Debug function 21 */
+#define K210_PCF_DEBUG22 246 /* Debug function 22 */
+#define K210_PCF_DEBUG23 247 /* Debug function 23 */
+#define K210_PCF_DEBUG24 248 /* Debug function 24 */
+#define K210_PCF_DEBUG25 249 /* Debug function 25 */
+#define K210_PCF_DEBUG26 250 /* Debug function 26 */
+#define K210_PCF_DEBUG27 251 /* Debug function 27 */
+#define K210_PCF_DEBUG28 252 /* Debug function 28 */
+#define K210_PCF_DEBUG29 253 /* Debug function 29 */
+#define K210_PCF_DEBUG30 254 /* Debug function 30 */
+#define K210_PCF_DEBUG31 255 /* Debug function 31 */
+
+#define K210_FPIOA(pin, func) (((pin) << 16) | (func))
+
+#define K210_PC_POWER_3V3 0
+#define K210_PC_POWER_1V8 1
+
+#endif /* PINCTRL_K210_FPIOA_H */
diff --git a/include/dt-bindings/reset/k210-rst.h b/include/dt-bindings/reset/k210-rst.h
new file mode 100644
index 000000000000..883c1aed50e8
--- /dev/null
+++ b/include/dt-bindings/reset/k210-rst.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Sean Anderson <seanga2@gmail.com>
+ * Copyright (c) 2020 Western Digital Corporation or its affiliates.
+ */
+#ifndef RESET_K210_SYSCTL_H
+#define RESET_K210_SYSCTL_H
+
+/*
+ * Kendryte K210 SoC system controller K210_SYSCTL_SOFT_RESET register bits.
+ * Taken from Kendryte SDK (kendryte-standalone-sdk).
+ */
+#define K210_RST_ROM 0
+#define K210_RST_DMA 1
+#define K210_RST_AI 2
+#define K210_RST_DVP 3
+#define K210_RST_FFT 4
+#define K210_RST_GPIO 5
+#define K210_RST_SPI0 6
+#define K210_RST_SPI1 7
+#define K210_RST_SPI2 8
+#define K210_RST_SPI3 9
+#define K210_RST_I2S0 10
+#define K210_RST_I2S1 11
+#define K210_RST_I2S2 12
+#define K210_RST_I2C0 13
+#define K210_RST_I2C1 14
+#define K210_RST_I2C2 15
+#define K210_RST_UART1 16
+#define K210_RST_UART2 17
+#define K210_RST_UART3 18
+#define K210_RST_AES 19
+#define K210_RST_FPIOA 20
+#define K210_RST_TIMER0 21
+#define K210_RST_TIMER1 22
+#define K210_RST_TIMER2 23
+#define K210_RST_WDT0 24
+#define K210_RST_WDT1 25
+#define K210_RST_SHA 26
+#define K210_RST_RTC 29
+
+#endif /* RESET_K210_SYSCTL_H */
diff --git a/include/linux/initrd.h b/include/linux/initrd.h
index 8db6f8c8030b..85c15717af34 100644
--- a/include/linux/initrd.h
+++ b/include/linux/initrd.h
@@ -1,5 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_INITRD_H
+#define __LINUX_INITRD_H
+
#define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
/* starting block # of image */
@@ -15,6 +18,12 @@ extern int initrd_below_start_ok;
extern unsigned long initrd_start, initrd_end;
extern void free_initrd_mem(unsigned long, unsigned long);
+#ifdef CONFIG_BLK_DEV_INITRD
+extern void __init reserve_initrd_mem(void);
+#else
+static inline void __init reserve_initrd_mem(void) {}
+#endif
+
extern phys_addr_t phys_initrd_start;
extern unsigned long phys_initrd_size;
@@ -24,3 +33,5 @@ extern char __initramfs_start[];
extern unsigned long __initramfs_size;
void console_on_rootfs(void);
+
+#endif /* __LINUX_INITRD_H */
diff --git a/include/soc/canaan/k210-sysctl.h b/include/soc/canaan/k210-sysctl.h
new file mode 100644
index 000000000000..0c2b2c2dabca
--- /dev/null
+++ b/include/soc/canaan/k210-sysctl.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
+ * Copyright (c) 2020 Western Digital Corporation or its affiliates.
+ */
+#ifndef K210_SYSCTL_H
+#define K210_SYSCTL_H
+
+/*
+ * Kendryte K210 SoC system controller registers offsets.
+ * Taken from Kendryte SDK (kendryte-standalone-sdk).
+ */
+#define K210_SYSCTL_GIT_ID 0x00 /* Git short commit id */
+#define K210_SYSCTL_UART_BAUD 0x04 /* Default UARTHS baud rate */
+#define K210_SYSCTL_PLL0 0x08 /* PLL0 controller */
+#define K210_SYSCTL_PLL1 0x0C /* PLL1 controller */
+#define K210_SYSCTL_PLL2 0x10 /* PLL2 controller */
+#define K210_SYSCTL_PLL_LOCK 0x18 /* PLL lock tester */
+#define K210_SYSCTL_ROM_ERROR 0x1C /* AXI ROM detector */
+#define K210_SYSCTL_SEL0 0x20 /* Clock select controller 0 */
+#define K210_SYSCTL_SEL1 0x24 /* Clock select controller 1 */
+#define K210_SYSCTL_EN_CENT 0x28 /* Central clock enable */
+#define K210_SYSCTL_EN_PERI 0x2C /* Peripheral clock enable */
+#define K210_SYSCTL_SOFT_RESET 0x30 /* Soft reset ctrl */
+#define K210_SYSCTL_PERI_RESET 0x34 /* Peripheral reset controller */
+#define K210_SYSCTL_THR0 0x38 /* Clock threshold controller 0 */
+#define K210_SYSCTL_THR1 0x3C /* Clock threshold controller 1 */
+#define K210_SYSCTL_THR2 0x40 /* Clock threshold controller 2 */
+#define K210_SYSCTL_THR3 0x44 /* Clock threshold controller 3 */
+#define K210_SYSCTL_THR4 0x48 /* Clock threshold controller 4 */
+#define K210_SYSCTL_THR5 0x4C /* Clock threshold controller 5 */
+#define K210_SYSCTL_THR6 0x50 /* Clock threshold controller 6 */
+#define K210_SYSCTL_MISC 0x54 /* Miscellaneous controller */
+#define K210_SYSCTL_PERI 0x58 /* Peripheral controller */
+#define K210_SYSCTL_SPI_SLEEP 0x5C /* SPI sleep controller */
+#define K210_SYSCTL_RESET_STAT 0x60 /* Reset source status */
+#define K210_SYSCTL_DMA_SEL0 0x64 /* DMA handshake selector 0 */
+#define K210_SYSCTL_DMA_SEL1 0x68 /* DMA handshake selector 1 */
+#define K210_SYSCTL_POWER_SEL 0x6C /* IO Power Mode Select controller */
+
+void k210_clk_early_init(void __iomem *regs);
+
+#endif