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rtc: snvs: add Freescale rtc-snvs driver

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Add an RTC driver for Freescale Secure Non-Volatile Storage (SNVS)
Low Power (LP) RTC.

Signed-off-by: Shawn Guo <[email protected]>
Reviewed-by: Stephen Boyd <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Sascha Hauer <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Shawn Guo 2012-10-04 17:13:49 -07:00 • committed by Linus Torvalds
commit 179a502f8c
5 changed files with 414 additions and 0 deletions
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51
Documentation/devicetree/bindings/crypto/fsl-sec4.txt
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@ -9,6 +9,7 @@ Copyright (C) 2008-2011 Freescale Semiconductor Inc.
-Run Time Integrity Check (RTIC) Node
-Run Time Integrity Check (RTIC) Memory Node
-Secure Non-Volatile Storage (SNVS) Node
-Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node
-Full Example
NOTE: the SEC 4 is also known as Freescale's Cryptographic Accelerator
@ -294,6 +295,27 @@ Secure Non-Volatile Storage (SNVS) Node
address and length of the SEC4 configuration
registers.
- #address-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing physical addresses in child nodes. Must
have a value of 1.
- #size-cells
Usage: required
Value type: <u32>
Definition: A standard property. Defines the number of cells
for representing the size of physical addresses in
child nodes. Must have a value of 1.
- ranges
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical address
range of the SNVS register space. A triplet that includes
the child address, parent address, & length.
- interrupts
Usage: required
Value type: <prop_encoded-array>
@ -314,10 +336,33 @@ EXAMPLE
sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
ranges = <0 0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
};
=====================================================================
Secure Non-Volatile Storage (SNVS) Low Power (LP) RTC Node
A SNVS child node that defines SNVS LP RTC.
- compatible
Usage: required
Value type: <string>
Definition: Must include "fsl,sec-v4.0-mon-rtc-lp".
- reg
Usage: required
Value type: <prop-encoded-array>
Definition: A standard property. Specifies the physical
address and length of the SNVS LP configuration registers.
EXAMPLE
sec_mon_rtc_lp@314000 {
compatible = "fsl,sec-v4.0-mon-rtc-lp";
reg = <0x34 0x58>;
};
=====================================================================
FULL EXAMPLE
@ -390,8 +435,14 @@ FULL EXAMPLE
sec_mon: sec_mon@314000 {
compatible = "fsl,sec-v4.0-mon";
reg = <0x314000 0x1000>;
ranges = <0 0x314000 0x1000>;
interrupt-parent = <&mpic>;
interrupts = <93 2>;
sec_mon_rtc_lp@34 {
compatible = "fsl,sec-v4.0-mon-rtc-lp";
reg = <0x34 0x58>;
};
};
=====================================================================

1
Documentation/devicetree/bindings/rtc/snvs-rtc.txt Normal file
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@ -0,0 +1 @@
See Documentation/devicetree/bindings/crypto/fsl-sec4.txt for details.