diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_sbi_regs.h')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_sbi_regs.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_sbi_regs.h b/drivers/gpu/drm/i915/display/intel_sbi_regs.h new file mode 100644 index 000000000000..ec76652de02d --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_sbi_regs.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: MIT */ +/* Copyright © 2025 Intel Corporation */ + +#ifndef __INTEL_SBI_REGS_H__ +#define __INTEL_SBI_REGS_H__ + +#include "intel_display_reg_defs.h" + +/* + * Sideband Interface (SBI) is programmed indirectly, via SBI_ADDR, which + * contains the register offset; and SBI_DATA, which contains the payload. + */ +#define SBI_ADDR _MMIO(0xC6000) +#define SBI_ADDR_MASK REG_GENMASK(31, 16) +#define SBI_ADDR_VALUE(addr) REG_FIELD_PREP(SBI_ADDR_MASK, (addr)) + +#define SBI_DATA _MMIO(0xC6004) + +#define SBI_CTL_STAT _MMIO(0xC6008) +#define SBI_CTL_DEST_MASK REG_GENMASK(16, 16) +#define SBI_CTL_DEST_ICLK REG_FIELD_PREP(SBI_CTL_DEST_MASK, 0) +#define SBI_CTL_DEST_MPHY REG_FIELD_PREP(SBI_CTL_DEST_MASK, 1) +#define SBI_CTL_OP_MASK REG_GENMASK(15, 8) +#define SBI_CTL_OP_IORD REG_FIELD_PREP(SBI_CTL_OP_MASK, 2) +#define SBI_CTL_OP_IOWR REG_FIELD_PREP(SBI_CTL_OP_MASK, 3) +#define SBI_CTL_OP_CRRD REG_FIELD_PREP(SBI_CTL_OP_MASK, 6) +#define SBI_CTL_OP_CRWR REG_FIELD_PREP(SBI_CTL_OP_MASK, 7) +#define SBI_CTL_OP_WR REG_BIT(8) +#define SBI_RESPONSE_MASK REG_GENMASK(2, 1) +#define SBI_RESPONSE_FAIL REG_FIELD_PREP(SBI_RESPONSE_MASK, 1) +#define SBI_RESPONSE_SUCCESS REG_FIELD_PREP(SBI_RESPONSE_MASK, 0) +#define SBI_STATUS_MASK REG_GENMASK(0, 0) +#define SBI_STATUS_BUSY REG_FIELD_PREP(SBI_STATUS_MASK, 1) +#define SBI_STATUS_READY REG_FIELD_PREP(SBI_STATUS_MASK, 0) + +/* SBI offsets */ +#define SBI_SSCDIVINTPHASE 0x0200 + +#define SBI_SSCDIVINTPHASE6 0x0600 +#define SBI_SSCDIVINTPHASE_DIVSEL_SHIFT 1 +#define SBI_SSCDIVINTPHASE_DIVSEL_MASK (0x7f << 1) +#define SBI_SSCDIVINTPHASE_DIVSEL(x) ((x) << 1) +#define SBI_SSCDIVINTPHASE_INCVAL_SHIFT 8 +#define SBI_SSCDIVINTPHASE_INCVAL_MASK (0x7f << 8) +#define SBI_SSCDIVINTPHASE_INCVAL(x) ((x) << 8) +#define SBI_SSCDIVINTPHASE_DIR(x) ((x) << 15) +#define SBI_SSCDIVINTPHASE_PROPAGATE (1 << 0) + +#define SBI_SSCDITHPHASE 0x0204 +#define SBI_SSCCTL 0x020c +#define SBI_SSCCTL6 0x060C +#define SBI_SSCCTL_PATHALT (1 << 3) +#define SBI_SSCCTL_DISABLE (1 << 0) + +#define SBI_SSCAUXDIV6 0x0610 +#define SBI_SSCAUXDIV_FINALDIV2SEL_SHIFT 4 +#define SBI_SSCAUXDIV_FINALDIV2SEL_MASK (1 << 4) +#define SBI_SSCAUXDIV_FINALDIV2SEL(x) ((x) << 4) + +#define SBI_DBUFF0 0x2a00 + +#define SBI_GEN0 0x1f00 +#define SBI_GEN0_CFG_BUFFENABLE_DISABLE (1 << 0) + +#endif /* __INTEL_SBI_REGS_H__ */ |