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From: Markus Niebel <list-09_linux_mtd@tqsc.de>
To: linux-mtd@lists.infradead.org
Subject: [PATCH 2.6.34 1/2] cfi_cmdset_0002.c: Read max timeouts from cfi query data
Date: Fri, 25 Mar 2011 08:52:39 +0100	[thread overview]
Message-ID: <4D8C49C7.5090700@tqsc.de> (raw)

The max timeouts are coded in the electronic flash data sheet (CFI query
data). Read the timeouts and store them in the chips structure table.

Signed-off-by: Markus Niebel <markus.niebel@tqs.de>
---

  drivers/mtd/chips/cfi_cmdset_0002.c |   21 +++++++++++++++++++++
  1 files changed, 21 insertions(+), 0 deletions(-)


diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c 
b/drivers/mtd/chips/cfi_cmdset_0002.c
index 38c47b0..1eb8bfa 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -429,6 +429,27 @@ struct mtd_info *cfi_cmdset_0002(struct map_info 
*map, int primary)
  		cfi->chips[i].word_write_time = 1<<cfi->cfiq->WordWriteTimeoutTyp;
  		cfi->chips[i].buffer_write_time = 1<<cfi->cfiq->BufWriteTimeoutTyp;
  		cfi->chips[i].erase_time = 1<<cfi->cfiq->BlockEraseTimeoutTyp;
+
+		/* FIXME: use also max times, verify if valid */
+		cfi->chips[i].word_write_time_max =
+				(1<<(cfi->cfiq->WordWriteTimeoutTyp)) *
+				(1<<(cfi->cfiq->WordWriteTimeoutMax));
+		cfi->chips[i].buffer_write_time_max =
+				(1<<(cfi->cfiq->BufWriteTimeoutTyp)) *
+				(1<<(cfi->cfiq->BufWriteTimeoutMax));
+		cfi->chips[i].erase_time_max =
+				(1<<(cfi->cfiq->BlockEraseTimeoutTyp)) *
+				(1<<(cfi->cfiq->BlockEraseTimeoutMax));
+
+		printk(KERN_INFO "MTD: %s erase time %u / %u ms\n", __func__,
+			cfi->chips[i].erase_time, cfi->chips[i].erase_time_max);
+		printk(KERN_INFO "MTD: %s word time %u / %u us\n", __func__,
+			cfi->chips[i].word_write_time,
+			cfi->chips[i].word_write_time_max);
+		printk(KERN_INFO "MTD: %s buffer time %u / %u us\n", __func__,
+			cfi->chips[i].buffer_write_time,
+			cfi->chips[i].buffer_write_time_max);
+
  		cfi->chips[i].ref_point_counter = 0;
  		init_waitqueue_head(&(cfi->chips[i].wq));
  	}

             reply	other threads:[~2011-03-25  7:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-25  7:52 Markus Niebel [this message]
2011-04-01  7:31 ` [PATCH 2.6.34 1/2] cfi_cmdset_0002.c: Read max timeouts from cfi query data Artem Bityutskiy

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