diff options
| author | Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> | 2025-06-12 01:08:00 -0700 |
|---|---|---|
| committer | Tien Fong Chee <tien.fong.chee@intel.com> | 2025-07-30 17:45:31 +0800 |
| commit | 9f689086863dfae693551a68fc9dc426bca5727e (patch) | |
| tree | d3eefee777ea64a3b3e8b110fd4d414fc2bb1b7a /arch/arm/mach-socfpga | |
| parent | 5119cffaf4d97aba162e2efe25eefeba4a12611e (diff) | |
arch: arm: agilex5: Enable power manager for Agilex5
Agilex5 FSBL is required to disable the power of unused peripheral SRAM
blocks to reduce power consumption.
Introducing a new power manager driver for Agilex5 which will be called
as part of Agilex5 SPL initialization process.
This driver will read the peripheral handoff data obtained from the
bitstream and will power off the specified peripheral's SRAM from the
handoff data values.
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
Diffstat (limited to 'arch/arm/mach-socfpga')
| -rw-r--r-- | arch/arm/mach-socfpga/include/mach/handoff_soc64.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-socfpga/spl_agilex5.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h index 763b077d8c1..04203cceb8a 100644 --- a/arch/arm/mach-socfpga/include/mach/handoff_soc64.h +++ b/arch/arm/mach-socfpga/include/mach/handoff_soc64.h @@ -68,6 +68,7 @@ #define SOC64_HANDOFF_CLOCK (SOC64_HANDOFF_BASE + 0x580) #if IS_ENABLED(CONFIG_TARGET_SOCFPGA_AGILEX5) #define SOC64_HANDOFF_PERI (SOC64_HANDOFF_BASE + 0x620) +#define SOC64_HANDOFF_PERI_LEN 1 #define SOC64_HANDOFF_SDRAM (SOC64_HANDOFF_BASE + 0x634) #define SOC64_HANDOFF_SDRAM_LEN 5 #endif diff --git a/arch/arm/mach-socfpga/spl_agilex5.c b/arch/arm/mach-socfpga/spl_agilex5.c index a9aad5350d2..2a13301802d 100644 --- a/arch/arm/mach-socfpga/spl_agilex5.c +++ b/arch/arm/mach-socfpga/spl_agilex5.c @@ -96,6 +96,12 @@ void board_init_f(ulong dummy) hang(); } + ret = uclass_get_device(UCLASS_POWER_DOMAIN, 0, &dev); + if (ret) { + debug("PSS SRAM power-off failed: %d\n", ret); + hang(); + } + if (IS_ENABLED(CONFIG_SPL_ALTERA_SDRAM)) { ret = uclass_get_device(UCLASS_RAM, 0, &dev); if (ret) { |