diff options
| author | Joachim Eastwood <manabian@gmail.com> | 2015-05-05 18:10:27 -0400 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2015-08-03 07:13:53 -0400 |
| commit | 27dc2fb18fe814fab0a5035859c77b279cdaec80 (patch) | |
| tree | 281006cfedb5d010011b13024cc974673bd7d5bf /Documentation/devicetree/bindings/reset | |
| parent | c392b65ba853f653cff3d1c7de2138bd6906d536 (diff) | |
doc: dt: add documentation for lpc1850-rgu reset driver
Add device tree binding documentation for the Reset Generation Unit
(RGU) found on NXP LPC18xx and LPC43xx devies.
This documentation also includes a table which shows the RGU reset
number and the connected peripheral.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'Documentation/devicetree/bindings/reset')
| -rw-r--r-- | Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt b/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt new file mode 100644 index 000000000000..b4e96a278445 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/nxp,lpc1850-rgu.txt | |||
| @@ -0,0 +1,84 @@ | |||
| 1 | NXP LPC1850 Reset Generation Unit (RGU) | ||
| 2 | ======================================== | ||
| 3 | |||
| 4 | Please also refer to reset.txt in this directory for common reset | ||
| 5 | controller binding usage. | ||
| 6 | |||
| 7 | Required properties: | ||
| 8 | - compatible: Should be "nxp,lpc1850-rgu" | ||
| 9 | - reg: register base and length | ||
| 10 | - clocks: phandle and clock specifier to RGU clocks | ||
| 11 | - clock-names: should contain "delay" and "reg" | ||
| 12 | - #reset-cells: should be 1 | ||
| 13 | |||
| 14 | See table below for valid peripheral reset numbers. Numbers not | ||
| 15 | in the table below are either reserved or not applicable for | ||
| 16 | normal operation. | ||
| 17 | |||
| 18 | Reset Peripheral | ||
| 19 | 9 System control unit (SCU) | ||
| 20 | 12 ARM Cortex-M0 subsystem core (LPC43xx only) | ||
| 21 | 13 CPU core | ||
| 22 | 16 LCD controller | ||
| 23 | 17 USB0 | ||
| 24 | 18 USB1 | ||
| 25 | 19 DMA | ||
| 26 | 20 SDIO | ||
| 27 | 21 External memory controller (EMC) | ||
| 28 | 22 Ethernet | ||
| 29 | 25 Flash bank A | ||
| 30 | 27 EEPROM | ||
| 31 | 28 GPIO | ||
| 32 | 29 Flash bank B | ||
| 33 | 32 Timer0 | ||
| 34 | 33 Timer1 | ||
| 35 | 34 Timer2 | ||
| 36 | 35 Timer3 | ||
| 37 | 36 Repetitive Interrupt timer (RIT) | ||
| 38 | 37 State Configurable Timer (SCT) | ||
| 39 | 38 Motor control PWM (MCPWM) | ||
| 40 | 39 QEI | ||
| 41 | 40 ADC0 | ||
| 42 | 41 ADC1 | ||
| 43 | 42 DAC | ||
| 44 | 44 USART0 | ||
| 45 | 45 UART1 | ||
| 46 | 46 USART2 | ||
| 47 | 47 USART3 | ||
| 48 | 48 I2C0 | ||
| 49 | 49 I2C1 | ||
| 50 | 50 SSP0 | ||
| 51 | 51 SSP1 | ||
| 52 | 52 I2S0 and I2S1 | ||
| 53 | 53 Serial Flash Interface (SPIFI) | ||
| 54 | 54 C_CAN1 | ||
| 55 | 55 C_CAN0 | ||
| 56 | 56 ARM Cortex-M0 application core (LPC4370 only) | ||
| 57 | 57 SGPIO (LPC43xx only) | ||
| 58 | 58 SPI (LPC43xx only) | ||
| 59 | 60 ADCHS (12-bit ADC) (LPC4370 only) | ||
| 60 | |||
| 61 | Refer to NXP LPC18xx or LPC43xx user manual for more details about | ||
| 62 | the reset signals and the connected block/peripheral. | ||
| 63 | |||
| 64 | Reset provider example: | ||
| 65 | rgu: reset-controller@40053000 { | ||
| 66 | compatible = "nxp,lpc1850-rgu"; | ||
| 67 | reg = <0x40053000 0x1000>; | ||
| 68 | clocks = <&cgu BASE_SAFE_CLK>, <&ccu1 CLK_CPU_BUS>; | ||
| 69 | clock-names = "delay", "reg"; | ||
| 70 | #reset-cells = <1>; | ||
| 71 | }; | ||
| 72 | |||
| 73 | Reset consumer example: | ||
| 74 | mac: ethernet@40010000 { | ||
| 75 | compatible = "nxp,lpc1850-dwmac", "snps,dwmac-3.611", "snps,dwmac"; | ||
| 76 | reg = <0x40010000 0x2000>; | ||
| 77 | interrupts = <5>; | ||
| 78 | interrupt-names = "macirq"; | ||
| 79 | clocks = <&ccu1 CLK_CPU_ETHERNET>; | ||
| 80 | clock-names = "stmmaceth"; | ||
| 81 | resets = <&rgu 22>; | ||
| 82 | reset-names = "stmmaceth"; | ||
| 83 | status = "disabled"; | ||
| 84 | }; | ||