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soc: nuvoton: numaker: add poweroff for m2l31x

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Add support of sys_poweroff API on m2l31x series.
It could support SPD0~2 standby or DPD0~1 deep power down mode.

Signed-off-by: cyliang tw <cyliang@nuvoton.com>
This commit is contained in:
cyliang tw 2024-08-05 15:29:32 +08:00 • committed by Fabio Baltieri
commit 5025487dd0
6 changed files with 51 additions and 0 deletions
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1
dts/arm/nuvoton/m2l31x.dtsi
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@ -48,6 +48,7 @@
clk-pclkdiv = <(NUMAKER_CLK_PCLKDIV_APB0DIV_DIV2 | clk-pclkdiv = <(NUMAKER_CLK_PCLKDIV_APB0DIV_DIV2 |
NUMAKER_CLK_PCLKDIV_APB1DIV_DIV2)>; NUMAKER_CLK_PCLKDIV_APB1DIV_DIV2)>;
core-clock = <DT_FREQ_M(72)>; core-clock = <DT_FREQ_M(72)>;
powerdown-mode = <NUMAKER_CLK_PMUCTL_PDMSEL_DPD0>;
pcc: peripheral-clock-controller { pcc: peripheral-clock-controller {
compatible = "nuvoton,numaker-pcc"; compatible = "nuvoton,numaker-pcc";

13
include/zephyr/dt-bindings/clock/numaker_m2l31x_clock.h
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@ -271,4 +271,17 @@
#define NUMAKER_LPADC0_MODULE 0xB5431218 #define NUMAKER_LPADC0_MODULE 0xB5431218
#define NUMAKER_OPA_MODULE 0xA000001B #define NUMAKER_OPA_MODULE 0xA000001B
#define NUMAKER_CLK_PMUCTL_PDMSEL_PD 0x00000000
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD0 0x00000000
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD1 0x00000001
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD2 0x00000002
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD3 0x00000003
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD4 0x00000004
#define NUMAKER_CLK_PMUCTL_PDMSEL_NPD5 0x00000005
#define NUMAKER_CLK_PMUCTL_PDMSEL_SPD0 0x00000008
#define NUMAKER_CLK_PMUCTL_PDMSEL_SPD1 0x00000009
#define NUMAKER_CLK_PMUCTL_PDMSEL_SPD2 0x0000000A
#define NUMAKER_CLK_PMUCTL_PDMSEL_DPD0 0x0000000C
#define NUMAKER_CLK_PMUCTL_PDMSEL_DPD1 0x0000000D
#endif #endif

2
soc/nuvoton/numaker/m2l31x/CMakeLists.txt
View file

@ -6,4 +6,6 @@ zephyr_sources(soc.c)
zephyr_include_directories(.) zephyr_include_directories(.)
zephyr_library_sources_ifdef(CONFIG_POWEROFF poweroff.c)
set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "") set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "")

1
soc/nuvoton/numaker/m2l31x/Kconfig
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@ -8,6 +8,7 @@ config SOC_SERIES_M2L31X
select CPU_CORTEX_M_HAS_SYSTICK select CPU_CORTEX_M_HAS_SYSTICK
select CPU_CORTEX_M_HAS_VTOR select CPU_CORTEX_M_HAS_VTOR
select CPU_HAS_ARM_MPU select CPU_HAS_ARM_MPU
select HAS_POWEROFF
config SOC_M2L31XXX config SOC_M2L31XXX
select HAS_NUMAKER_HAL select HAS_NUMAKER_HAL

31
soc/nuvoton/numaker/m2l31x/poweroff.c Normal file
View file

@ -0,0 +1,31 @@
/*
* Copyright (c) 2024 Nuvoton Technology Corporation.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/devicetree.h>
#include <zephyr/sys/poweroff.h>
#include <NuMicro.h>
void z_sys_poweroff(void)
{
SYS_UnlockReg();
/* Clear all wake-up flag */
CLK->PMUSTS |= CLK_PMUSTS_CLRWK_Msk;
/* Select Power-down mode */
CLK_SetPowerDownMode(DT_PROP_OR(DT_NODELABEL(scc), powerdown_mode, CLK_PMUCTL_PDMSEL_SPD0));
/* Enable RTC wake-up */
CLK_ENABLE_RTCWK();
/* Enter to Power-down mode */
CLK_PowerDown();
k_cpu_idle();
CODE_UNREACHABLE;
}

3
soc/nuvoton/numaker/m2l31x/soc.c
View file

@ -16,6 +16,9 @@ void z_arm_platform_init(void)
/* Unlock protected registers */ /* Unlock protected registers */
SYS_UnlockReg(); SYS_UnlockReg();
/* Release I/O hold status */
CLK->IOPDCTL = 1;
/* /*
* ------------------- * -------------------
* Init System Clock * Init System Clock