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1 | STMicroelectronics Low Power Controller (LPC) - RTC |
2 | =================================================== | |
3 | ||
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4 | LPC currently supports Watchdog OR Real Time Clock OR Clocksource |
5 | functionality. | |
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6 | |
7 | [See: ../watchdog/st_lpc_wdt.txt for Watchdog options] | |
c74a06dc | 8 | [See: ../timer/st,stih407-lpc for Clocksource options] |
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9 | |
10 | Required properties | |
11 | ||
c74a06dc | 12 | - compatible : Must be: "st,stih407-lpc" |
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13 | - reg : LPC registers base address + size |
14 | - interrupts : LPC interrupt line number and associated flags | |
15 | - clocks : Clock used by LPC device (See: ../clock/clock-bindings.txt) | |
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16 | - st,lpc-mode : The LPC can run either one of three modes: |
17 | ST_LPC_MODE_RTC [0] | |
18 | ST_LPC_MODE_WDT [1] | |
19 | ST_LPC_MODE_CLKSRC [2] | |
20 | One (and only one) mode must be selected. | |
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21 | |
22 | Example: | |
23 | lpc@fde05000 { | |
24 | compatible = "st,stih407-lpc"; | |
25 | reg = <0xfde05000 0x1000>; | |
26 | clocks = <&clk_s_d3_flexgen CLK_LPC_0>; | |
27 | st,lpc-mode = <ST_LPC_MODE_RTC>; | |
28 | }; |