diff options
Diffstat (limited to 'arch/mips/mach-octeon/cpu.c')
| -rw-r--r-- | arch/mips/mach-octeon/cpu.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/arch/mips/mach-octeon/cpu.c b/arch/mips/mach-octeon/cpu.c index fffd9dfb85..1bdc6cd729 100644 --- a/arch/mips/mach-octeon/cpu.c +++ b/arch/mips/mach-octeon/cpu.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Copyright (C) 2020 Marvell International Ltd. + * Copyright (C) 2020-2022 Marvell International Ltd. */ #include <dm.h> @@ -17,6 +17,8 @@ #include <mach/cvmx-bootmem.h> #include <mach/cvmx-regs.h> #include <mach/cvmx-sata-defs.h> +#include <mach/octeon-model.h> +#include <mach/octeon-feature.h> DECLARE_GLOBAL_DATA_PTR; @@ -393,6 +395,33 @@ static int init_bootcmd_console(void) return ret; } +static void configure_lmtdma_window(void) +{ + u64 tmp; + u64 addr; + u64 end_addr; + + CVMX_MF_CVM_MEM_CTL(tmp); + tmp &= ~0x1ffull; + tmp |= 0x104ull; + + /* enable LMTDMA */ + tmp |= (1ull << 51); + /* configure scratch line 2 for LMT */ + /* TODO: reserve this scratch line, so that others will not use it */ + /* TODO: store LMTLINE in global var */ + tmp |= (CVMX_PKO_LMTLINE << 45); + /* clear LMTLINE in scratch */ + addr = CVMX_PKO_LMTLINE * CVMX_CACHE_LINE_SIZE; + end_addr = addr + CVMX_CACHE_LINE_SIZE; + + while (addr < end_addr) { + *CASTPTR(volatile u64, addr + CVMX_SCRATCH_BASE) = (u64)0; + addr += 8; + } + CVMX_MT_CVM_MEM_CTL(tmp); +} + int arch_early_init_r(void) { int ret; @@ -405,6 +434,9 @@ int arch_early_init_r(void) if (ret) return ret; + if (octeon_has_feature(OCTEON_FEATURE_PKO3)) + configure_lmtdma_window(); + return 0; } |