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power: reset: at91-reset: document structures and enums 

Document structures and enums.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Claudiu Beznea 2022-06-10 12:24:10 +03:00 committed by Sebastian Reichel
parent 5994f58977
commit cd4ed0ab80
1 changed files with 20 additions and 0 deletions
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20
drivers/power/reset/at91-reset.c
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@ -39,6 +39,17 @@
#define AT91_RSTC_URSTIEN BIT(4) /* User Reset Interrupt Enable */
#define AT91_RSTC_ERSTL GENMASK(11, 8) /* External Reset Length */
/**
* enum reset_type - reset types
* @RESET_TYPE_GENERAL: first power-up reset
* @RESET_TYPE_WAKEUP: return from backup mode
* @RESET_TYPE_WATCHDOG: watchdog fault
* @RESET_TYPE_SOFTWARE: processor reset required by software
* @RESET_TYPE_USER: NRST pin detected low
* @RESET_TYPE_CPU_FAIL: CPU clock failure detection
* @RESET_TYPE_XTAL_FAIL: 32KHz crystal failure dectection fault
* @RESET_TYPE_ULP2: ULP2 reset
*/
enum reset_type {
RESET_TYPE_GENERAL = 0,
RESET_TYPE_WAKEUP = 1,
@ -50,6 +61,15 @@ enum reset_type {
RESET_TYPE_ULP2 = 8,
};
/**
* struct at91_reset - AT91 reset specific data structure
* @rstc_base: base address for system reset
* @ramc_base: array with base addresses of RAM controllers
* @sclk: slow clock
* @nb: reset notifier block
* @args: SoC specific system reset arguments
* @ramc_lpr: SDRAM Controller Low Power Register
*/
struct at91_reset {
void __iomem *rstc_base;
void __iomem *ramc_base[2];