From 7c49cb8f9ca86e791c392da40e7f0d3cb7ed47f3 Mon Sep 17 00:00:00 2001 From: Angel Pons Date: Mon, 16 Mar 2020 23:17:32 +0100 Subject: nb/intel/sandybridge: Tidy up code and comments - Reformat some lines of code - Move MCHBAR registers and documentation into a separate file - Add a few missing macros - Rename some registers - Rewrite several comments - Use C-style comments for consistency - Rewrite some hex constants - Use HOST_BRIDGE instead of PCI_DEV(0, 0, 0) With BUILD_TIMELESS=1, this commit does not change the result of: - Asus P8Z77-V LX2 with native raminit. - Asus P8Z77-M PRO with MRC raminit. Change-Id: I6e113e48afd685ca63cfcb11ff9fcf9df6e41e46 Signed-off-by: Angel Pons Reviewed-on: https://review.coreboot.org/c/coreboot/+/39599 Reviewed-by: Felix Held Reviewed-by: Patrick Rudolph Tested-by: build bot (Jenkins) --- src/northbridge/intel/sandybridge/chip.h | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) (limited to 'src/northbridge/intel/sandybridge/chip.h') diff --git a/src/northbridge/intel/sandybridge/chip.h b/src/northbridge/intel/sandybridge/chip.h index 5f5bf31f34..83181567a5 100644 --- a/src/northbridge/intel/sandybridge/chip.h +++ b/src/northbridge/intel/sandybridge/chip.h @@ -19,9 +19,9 @@ /* * Digital Port Hotplug Enable: - * 0x04 = Enabled, 2ms short pulse + * 0x04 = Enabled, 2ms short pulse * 0x05 = Enabled, 4.5ms short pulse - * 0x06 = Enabled, 6ms short pulse + * 0x06 = Enabled, 6ms short pulse * 0x07 = Enabled, 100ms short pulse */ struct northbridge_intel_sandybridge_config { @@ -48,7 +48,7 @@ struct northbridge_intel_sandybridge_config { struct i915_gpu_controller_info gfx; /* - * Maximum PCI mmio size in MiB. + * Maximum PCI MMIO size in MiB. */ u16 pci_mmio_size; @@ -63,7 +63,8 @@ struct northbridge_intel_sandybridge_config { bool ec_present; bool ddr3lv_support; - /* N mode functionality. Leave this setting at 0. + /* + * N mode functionality. Leave this setting at 0. * 0 Auto * 1 1N * 2 2N @@ -74,12 +75,13 @@ struct northbridge_intel_sandybridge_config { DDR_NMODE_2N, } nmode; - /* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows - * for DIMM SPD data to specify whether double-rate is required for - * extended operating temperature range. - * 0 Enable double rate based upon temperature thresholds - * 1 Normal rate - * 2 Always enable double rate + /* + * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to + * specify whether double-rate is required for extended operating temperature range. + * + * 0 Enable double rate based upon temperature thresholds + * 1 Normal rate + * 2 Always enable double rate */ enum { DDR_REFRESH_RATE_TEMP_THRES = 0, @@ -93,7 +95,7 @@ struct northbridge_intel_sandybridge_config { * [1] = overcurrent pin * [2] = length * - * Ports 0-7 can be mapped to OC0-OC3 + * Ports 0-7 can be mapped to OC0-OC3 * Ports 8-13 can be mapped to OC4-OC7 * * Port Length -- cgit v1.2.3