1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
Nuvoton NPCM7XX Pin Controllers
The Nuvoton BMC NPCM7XX Pin Controller multi-function routed through
the multiplexing block, Each pin supports GPIO functionality (GPIOx)
and multiple functions that directly connect the pin to different
hardware blocks.
Required properties:
- #address-cells : should be 1.
- #size-cells : should be 1.
- compatible : "nuvoton,npcm750-pinctrl" for Poleg NPCM7XX.
- ranges : defines mapping ranges between pin controller node (parent)
to GPIO bank node (children).
=== GPIO Bank Subnode ===
The NPCM7XX has 8 GPIO Banks each GPIO bank supports 32 GPIO.
Required GPIO Bank subnode-properties:
- reg : specifies physical base address and size of the GPIO
bank registers.
- gpio-controller : Marks the device node as a GPIO controller.
- #gpio-cells : Must be <2>. The first cell is the gpio pin number
and the second cell is used for optional parameters.
- interrupts : contain the GPIO bank interrupt with flags for falling edge.
- gpio-ranges : defines the range of pins managed by the GPIO bank controller.
For example, GPIO bank subnodes like the following:
gpio0: gpio@f0010000 {
gpio-controller;
#gpio-cells = <2>;
reg = <0x0 0x80>;
interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
gpio-ranges = <&pinctrl 0 0 32>;
};
=== Pin Mux Subnode ===
- pin: A string containing the name of the pin
An array of strings, each string containing the name of a pin.
These pin are used for selecting pin configuration.
The following are the list of pins available:
"GPIO0/IOX1DI", "GPIO1/IOX1LD", "GPIO2/IOX1CK", "GPIO3/IOX1D0",
"GPIO4/IOX2DI/SMB1DSDA", "GPIO5/IOX2LD/SMB1DSCL", "GPIO6/IOX2CK/SMB2DSDA",
"GPIO7/IOX2D0/SMB2DSCL", "GPIO8/LKGPO1", "GPIO9/LKGPO2", "GPIO10/IOXHLD",
"GPIO11/IOXHCK", "GPIO12/GSPICK/SMB5BSCL", "GPIO13/GSPIDO/SMB5BSDA",
"GPIO14/GSPIDI/SMB5CSCL", "GPIO15/GSPICS/SMB5CSDA", "GPIO16/LKGPO0",
"GPIO17/PSPI2DI/SMB4DEN","GPIO18/PSPI2D0/SMB4BSDA", "GPIO19/PSPI2CK/SMB4BSCL",
"GPIO20/SMB4CSDA/SMB15SDA", "GPIO21/SMB4CSCL/SMB15SCL", "GPIO22/SMB4DSDA/SMB14SDA",
"GPIO23/SMB4DSCL/SMB14SCL", "GPIO24/IOXHDO", "GPIO25/IOXHDI", "GPIO26/SMB5SDA",
"GPIO27/SMB5SCL", "GPIO28/SMB4SDA", "GPIO29/SMB4SCL", "GPIO30/SMB3SDA",
"GPIO31/SMB3SCL", "GPIO32/nSPI0CS1","SPI0D2", "SPI0D3", "GPIO37/SMB3CSDA",
"GPIO38/SMB3CSCL", "GPIO39/SMB3BSDA", "GPIO40/SMB3BSCL", "GPIO41/BSPRXD",
"GPO42/BSPTXD/STRAP11", "GPIO43/RXD1/JTMS2/BU1RXD", "GPIO44/nCTS1/JTDI2/BU1CTS",
"GPIO45/nDCD1/JTDO2", "GPIO46/nDSR1/JTCK2", "GPIO47/nRI1/JCP_RDY2",
"GPIO48/TXD2/BSPTXD", "GPIO49/RXD2/BSPRXD", "GPIO50/nCTS2", "GPO51/nRTS2/STRAP2",
"GPIO52/nDCD2", "GPO53/nDTR2_BOUT2/STRAP1", "GPIO54/nDSR2", "GPIO55/nRI2",
"GPIO56/R1RXERR", "GPIO57/R1MDC", "GPIO58/R1MDIO", "GPIO59/SMB3DSDA",
"GPIO60/SMB3DSCL", "GPO61/nDTR1_BOUT1/STRAP6", "GPO62/nRTST1/STRAP5",
"GPO63/TXD1/STRAP4", "GPIO64/FANIN0", "GPIO65/FANIN1", "GPIO66/FANIN2",
"GPIO67/FANIN3", "GPIO68/FANIN4", "GPIO69/FANIN5", "GPIO70/FANIN6", "GPIO71/FANIN7",
"GPIO72/FANIN8", "GPIO73/FANIN9", "GPIO74/FANIN10", "GPIO75/FANIN11",
"GPIO76/FANIN12", "GPIO77/FANIN13","GPIO78/FANIN14", "GPIO79/FANIN15",
"GPIO80/PWM0", "GPIO81/PWM1", "GPIO82/PWM2", "GPIO83/PWM3", "GPIO84/R2TXD0",
"GPIO85/R2TXD1", "GPIO86/R2TXEN", "GPIO87/R2RXD0", "GPIO88/R2RXD1", "GPIO89/R2CRSDV",
"GPIO90/R2RXERR", "GPIO91/R2MDC", "GPIO92/R2MDIO", "GPIO93/GA20/SMB5DSCL",
"GPIO94/nKBRST/SMB5DSDA", "GPIO95/nLRESET/nESPIRST", "GPIO96/RG1TXD0",
"GPIO97/RG1TXD1", "GPIO98/RG1TXD2", "GPIO99/RG1TXD3","GPIO100/RG1TXC",
"GPIO101/RG1TXCTL", "GPIO102/RG1RXD0", "GPIO103/RG1RXD1", "GPIO104/RG1RXD2",
"GPIO105/RG1RXD3", "GPIO106/RG1RXC", "GPIO107/RG1RXCTL", "GPIO108/RG1MDC",
"GPIO109/RG1MDIO", "GPIO110/RG2TXD0/DDRV0", "GPIO111/RG2TXD1/DDRV1",
"GPIO112/RG2TXD2/DDRV2", "GPIO113/RG2TXD3/DDRV3", "GPIO114/SMB0SCL",
"GPIO115/SMB0SDA", "GPIO116/SMB1SCL", "GPIO117/SMB1SDA", "GPIO118/SMB2SCL",
"GPIO119/SMB2SDA", "GPIO120/SMB2CSDA", "GPIO121/SMB2CSCL", "GPIO122/SMB2BSDA",
"GPIO123/SMB2BSCL", "GPIO124/SMB1CSDA", "GPIO125/SMB1CSCL","GPIO126/SMB1BSDA",
"GPIO127/SMB1BSCL", "GPIO128/SMB8SCL", "GPIO129/SMB8SDA", "GPIO130/SMB9SCL",
"GPIO131/SMB9SDA", "GPIO132/SMB10SCL", "GPIO133/SMB10SDA","GPIO134/SMB11SCL",
"GPIO135/SMB11SDA", "GPIO136/SD1DT0", "GPIO137/SD1DT1", "GPIO138/SD1DT2",
"GPIO139/SD1DT3", "GPIO140/SD1CLK", "GPIO141/SD1WP", "GPIO142/SD1CMD",
"GPIO143/SD1CD/SD1PWR", "GPIO144/PWM4", "GPIO145/PWM5", "GPIO146/PWM6",
"GPIO147/PWM7", "GPIO148/MMCDT4", "GPIO149/MMCDT5", "GPIO150/MMCDT6",
"GPIO151/MMCDT7", "GPIO152/MMCCLK", "GPIO153/MMCWP", "GPIO154/MMCCMD",
"GPIO155/nMMCCD/nMMCRST", "GPIO156/MMCDT0", "GPIO157/MMCDT1", "GPIO158/MMCDT2",
"GPIO159/MMCDT3", "GPIO160/CLKOUT/RNGOSCOUT", "GPIO161/nLFRAME/nESPICS",
"GPIO162/SERIRQ", "GPIO163/LCLK/ESPICLK", "GPIO164/LAD0/ESPI_IO0",
"GPIO165/LAD1/ESPI_IO1", "GPIO166/LAD2/ESPI_IO2", "GPIO167/LAD3/ESPI_IO3",
"GPIO168/nCLKRUN/nESPIALERT", "GPIO169/nSCIPME", "GPIO170/nSMI", "GPIO171/SMB6SCL",
"GPIO172/SMB6SDA", "GPIO173/SMB7SCL", "GPIO174/SMB7SDA", "GPIO175/PSPI1CK/FANIN19",
"GPIO176/PSPI1DO/FANIN18", "GPIO177/PSPI1DI/FANIN17", "GPIO178/R1TXD0",
"GPIO179/R1TXD1", "GPIO180/R1TXEN", "GPIO181/R1RXD0", "GPIO182/R1RXD1",
"GPIO183/SPI3CK", "GPO184/SPI3D0/STRAP9", "GPO185/SPI3D1/STRAP10",
"GPIO186/nSPI3CS0", "GPIO187/nSPI3CS1", "GPIO188/SPI3D2/nSPI3CS2",
"GPIO189/SPI3D3/nSPI3CS3", "GPIO190/nPRD_SMI", "GPIO191", "GPIO192", "GPIO193/R1CRSDV",
"GPIO194/SMB0BSCL", "GPIO195/SMB0BSDA", "GPIO196/SMB0CSCL", "GPIO197/SMB0DEN",
"GPIO198/SMB0DSDA", "GPIO199/SMB0DSCL", "GPIO200/R2CK", "GPIO201/R1CK",
"GPIO202/SMB0CSDA", "GPIO203/FANIN16", "GPIO204/DDC2SCL", "GPIO205/DDC2SDA",
"GPIO206/HSYNC2", "GPIO207/VSYNC2", "GPIO208/RG2TXC/DVCK", "GPIO209/RG2TXCTL/DDRV4",
"GPIO210/RG2RXD0/DDRV5", "GPIO211/RG2RXD1/DDRV6", "GPIO212/RG2RXD2/DDRV7",
"GPIO213/RG2RXD3/DDRV8", "GPIO214/RG2RXC/DDRV9", "GPIO215/RG2RXCTL/DDRV10",
"GPIO216/RG2MDC/DDRV11", "GPIO217/RG2MDIO/DVHSYNC", "GPIO218/nWDO1",
"GPIO219/nWDO2", "GPIO220/SMB12SCL", "GPIO221/SMB12SDA", "GPIO222/SMB13SCL",
"GPIO223/SMB13SDA", "GPIO224/SPIXCK", "GPO225/SPIXD0/STRAP12", "GPO226/SPIXD1/STRAP13",
"GPIO227/nSPIXCS0", "GPIO228/nSPIXCS1", "GPO229/SPIXD2/STRAP3", "GPIO230/SPIXD3",
"GPIO231/nCLKREQ", "GPI255/DACOSEL"
Optional Properties:
bias-disable, bias-pull-down, bias-pull-up, input-enable,
input-disable, output-high, output-low, drive-push-pull,
drive-open-drain, input-debounce, slew-rate, drive-strength
slew-rate valid arguments are:
<0> - slow
<1> - fast
drive-strength valid arguments are:
<2> - 2mA
<4> - 4mA
<8> - 8mA
<12> - 12mA
<16> - 16mA
<24> - 24mA
For example, pinctrl might have pinmux subnodes like the following:
gpio0_iox1d1_pin: gpio0-iox1d1-pin {
pins = "GPIO0/IOX1DI";
output-high;
};
gpio0_iox1ck_pin: gpio0-iox1ck-pin {
pins = "GPIO2/IOX1CK";
output_high;
};
=== Pin Group Subnode ===
Required pin group subnode-properties:
- groups : A string containing the name of the group to mux.
- function: A string containing the name of the function to mux to the
group.
The following are the list of the available groups and functions :
smb0, smb0b, smb0c, smb0d, smb0den, smb1, smb1b, smb1c, smb1d,
smb2, smb2b, smb2c, smb2d, smb3, smb3b, smb3c, smb3d, smb4, smb4b,
smb4c, smb4d, smb4den, smb5, smb5b, smb5c, smb5d, ga20kbc, smb6,
smb7, smb8, smb9, smb10, smb11, smb12, smb13, smb14, smb15, fanin0,
fanin1, fanin2, fanin3, fanin4, fanin5, fanin6, fanin7, fanin8,
fanin9, fanin10, fanin11 fanin12 fanin13, fanin14, fanin15, faninx,
pwm0, pwm1, pwm2, pwm3, pwm4, pwm5, pwm6, pwm7, rg1, rg1mdio, rg2,
rg2mdio, ddr, uart1, uart2, bmcuart0a, bmcuart0b, bmcuart1, iox1,
iox2, ioxh, gspi, mmc, mmcwp, mmccd, mmcrst, mmc8, r1, r1err, r1md,
r2, r2err, r2md, sd1, sd1pwr, wdog1, wdog2, scipme, sci, serirq,
jtag2, spix, spixcs1, pspi1, pspi2, ddc, clkreq, clkout, spi3, spi3cs1,
spi3quad, spi3cs2, spi3cs3, spi0cs1, lpc, lpcclk, espi, lkgpo0, lkgpo1,
lkgpo2, nprd_smi
For example, pinctrl might have group subnodes like the following:
r1err_pins: r1err-pins {
groups = "r1err";
function = "r1err";
};
r1md_pins: r1md-pins {
groups = "r1md";
function = "r1md";
};
r1_pins: r1-pins {
groups = "r1";
function = "r1";
};
Examples
========
pinctrl: pinctrl@f0800000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "nuvoton,npcm750-pinctrl";
ranges = <0 0xf0010000 0x8000>;
gpio0: gpio@f0010000 {
gpio-controller;
#gpio-cells = <2>;
reg = <0x0 0x80>;
interrupts = <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>;
gpio-ranges = <&pinctrl 0 0 32>;
};
....
gpio7: gpio@f0017000 {
gpio-controller;
#gpio-cells = <2>;
reg = <0x7000 0x80>;
interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
gpio-ranges = <&pinctrl 0 224 32>;
};
gpio0_iox1d1_pin: gpio0-iox1d1-pin {
pins = "GPIO0/IOX1DI";
output-high;
};
iox1_pins: iox1-pins {
groups = "iox1";
function = "iox1";
};
iox2_pins: iox2-pins {
groups = "iox2";
function = "iox2";
};
....
clkreq_pins: clkreq-pins {
groups = "clkreq";
function = "clkreq";
};
};
|
