diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/soc.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 89229da..dcec83e 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Copyright 2017 NXP + * Copyright 2017-2019 NXP * * Peng Fan <peng.fan@nxp.com> */ @@ -448,3 +448,29 @@ int arch_misc_init(void) return 0; } #endif + +void imx_tmu_arch_init(void *reg_base) +{ + if (is_imx8mm()) { + /* Load TCALIV and TASR from fuses */ + struct ocotp_regs *ocotp = + (struct ocotp_regs *)OCOTP_BASE_ADDR; + struct fuse_bank *bank = &ocotp->bank[3]; + struct fuse_bank3_regs *fuse = + (struct fuse_bank3_regs *)bank->fuse_regs; + + u32 tca_rt, tca_hr, tca_en; + u32 buf_vref, buf_slope; + + tca_rt = fuse->ana0 & 0xFF; + tca_hr = (fuse->ana0 & 0xFF00) >> 8; + tca_en = (fuse->ana0 & 0x2000000) >> 25; + + buf_vref = (fuse->ana0 & 0x1F00000) >> 20; + buf_slope = (fuse->ana0 & 0xF0000) >> 16; + + writel(buf_vref | (buf_slope << 16), (ulong)reg_base + 0x28); + writel((tca_en << 31) | (tca_hr << 16) | tca_rt, + (ulong)reg_base + 0x30); + } +} |