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From: Denis Orlov <denorl2009@gmail.com>
To: barebox@lists.infradead.org
Cc: Denis Orlov <denorl2009@gmail.com>
Subject: [PATCH 1/2] ddr_spd: add DDR3 Load Reduced module specific data
Date: Tue, 12 Mar 2024 00:36:07 +0300	[thread overview]
Message-ID: <20240311213915.584429-2-denorl2009@gmail.com> (raw)
In-Reply-To: <20240311213915.584429-1-denorl2009@gmail.com>

This will be used by the DDR3 SPD data printing routine and is needed for
completeness, to cover all of the DDR3-related cases from the original
decode-dimms tool.

Signed-off-by: Denis Orlov <denorl2009@gmail.com>
---
 include/ddr_spd.h | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/include/ddr_spd.h b/include/ddr_spd.h
index a96d01df85..415fc88f63 100644
--- a/include/ddr_spd.h
+++ b/include/ddr_spd.h
@@ -264,6 +264,40 @@ struct ddr3_spd_eeprom {
 			/* 69-76 RC1,3,5...15 (MS Nibble) / RC0,2,4...14 (LS Nibble) */
 			unsigned char rcw[8];
 		} registered;
+		struct {
+			/* 60 (Load Reduced) Module Nominal Height */
+			unsigned char mod_height;
+			/* 61 (Load Reduced) Module Maximum Thickness */
+			unsigned char mod_thickness;
+			/* 62 (Load Reduced) Reference Raw Card Used */
+			unsigned char ref_raw_card;
+			/* 63 Module Attributes */
+			unsigned char modu_attr;
+			/* 64 Memory Buffer Revision ID */
+			unsigned char buf_rev_id;
+			/* 65 Memory Buffer Manufacturer ID Code, Least Significant Byte */
+			unsigned char buf_id_lo;
+			/* 66 Memory Buffer Manufacturer ID Code, Most Significant Byte */
+			unsigned char buf_id_hi;
+			/* 67-89 FxRCy and MR1,2 Registers */
+			unsigned char fxrcy_mr1_2[23];
+			/* 90 Minimum Module Delay Time for 1.5 V */
+			unsigned char min_delay_1_5;
+			/* 91 Maximum Module Delay Time for 1.5 V */
+			unsigned char max_delay_1_5;
+			/* 92 Minimum Module Delay Time for 1.35 V */
+			unsigned char min_delay_1_35;
+			/* 93 Maximum Module Delay Time for 1.35 V */
+			unsigned char max_delay_1_35;
+			/* 94 Minimum Module Delay Time for 1.25 V */
+			unsigned char min_delay_1_25;
+			/* 95 Maximum Module Delay Time for 1.25 V */
+			unsigned char max_delay_1_25;
+			/* 96-101 Reserved */
+			unsigned char reserved[6];
+			/* 102-116 Memory Buffer Personality Bytes */
+			unsigned char mem_buf_personality[15];
+		} loadreduced;
 		unsigned char uc[57]; /* 60-116 Module-Specific Section */
 	} mod_section;
 
-- 
2.44.0




  reply	other threads:[~2024-03-11 21:40 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-11 21:36 [PATCH 0/2] ddr_spd: extend spd_decode to cover DDR3 Denis Orlov
2024-03-11 21:36 ` Denis Orlov [this message]
2024-03-11 21:36 ` [PATCH 2/2] ddr_spd: add routine for printing DDR3 SPD contents Denis Orlov
2024-03-13  6:39 ` [PATCH 0/2] ddr_spd: extend spd_decode to cover DDR3 Sascha Hauer

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