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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
commit b1928b41c0
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source/trusted-firmware/trusted-firmware-a-2.8/include/drivers/nxp/smmu/nxp_smmu.h
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/*
* Copyright 2018-2020 NXP
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef NXP_SMMU_H
#define NXP_SMMU_H
#define SMMU_SCR0 (0x0)
#define SMMU_NSCR0 (0x400)
#define SMMU_SACR (0x10)
#define SCR0_CLIENTPD_MASK 0x00000001
#define SCR0_USFCFG_MASK 0x00000400
#define SMMU_SACR_CACHE_LOCK_ENABLE_BIT (1ULL << 26U)
static inline void bypass_smmu(uintptr_t smmu_base_addr)
{
uint32_t val;
val = (mmio_read_32(smmu_base_addr + SMMU_SCR0) | SCR0_CLIENTPD_MASK) &
~(SCR0_USFCFG_MASK);
mmio_write_32((smmu_base_addr + SMMU_SCR0), val);
val = (mmio_read_32(smmu_base_addr + SMMU_NSCR0) | SCR0_CLIENTPD_MASK) &
~(SCR0_USFCFG_MASK);
mmio_write_32((smmu_base_addr + SMMU_NSCR0), val);
}
static inline void smmu_cache_unlock(uintptr_t smmu_base_addr)
{
uint32_t val;
val = mmio_read_32((smmu_base_addr + SMMU_SACR));
val &= (uint32_t)~SMMU_SACR_CACHE_LOCK_ENABLE_BIT;
mmio_write_32((smmu_base_addr + SMMU_SACR), val);
}
#endif