From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 2/3] e1000: implement support for smaller flash chips
Date: Mon, 9 Oct 2017 11:36:15 +0200 [thread overview]
Message-ID: <20171009093616.12686-3-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20171009093616.12686-1-u.kleine-koenig@pengutronix.de>
In older revisions of the i210 data sheet (rev 2.8) M25PE80 (1 MiB) is still
listed as supported. So check the full range of FLA.FL_SIZE which also
simplifies the code.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/net/e1000/e1000.h | 3 ---
drivers/net/e1000/eeprom.c | 14 +++-----------
2 files changed, 3 insertions(+), 14 deletions(-)
diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h
index 2a29ef47e818..1bc57bf2760c 100644
--- a/drivers/net/e1000/e1000.h
+++ b/drivers/net/e1000/e1000.h
@@ -2106,9 +2106,6 @@ struct e1000_eeprom_info {
#define E1000_FLA 0x1201C
#define E1000_FLA_FL_SIZE_SHIFT 17
#define E1000_FLA_FL_SIZE_MASK (0b111 << E1000_FLA_FL_SIZE_SHIFT) /* EEprom Size */
-#define E1000_FLA_FL_SIZE_2MB 0b101
-#define E1000_FLA_FL_SIZE_4MB 0b110
-#define E1000_FLA_FL_SIZE_8MB 0b111
#define E1000_FLSWCTL_ADDR(a) ((a) & 0x00FFFFFF)
diff --git a/drivers/net/e1000/eeprom.c b/drivers/net/e1000/eeprom.c
index 1a0c6e15abef..739bc17a519e 100644
--- a/drivers/net/e1000/eeprom.c
+++ b/drivers/net/e1000/eeprom.c
@@ -414,17 +414,9 @@ int32_t e1000_init_eeprom_params(struct e1000_hw *hw)
fla &= E1000_FLA_FL_SIZE_MASK;
fla >>= E1000_FLA_FL_SIZE_SHIFT;
- switch (fla) {
- case E1000_FLA_FL_SIZE_8MB:
- eeprom->word_size = SZ_8M / 2;
- break;
- case E1000_FLA_FL_SIZE_4MB:
- eeprom->word_size = SZ_4M / 2;
- break;
- case E1000_FLA_FL_SIZE_2MB:
- eeprom->word_size = SZ_2M / 2;
- break;
- default:
+ if (fla) {
+ eeprom->word_size = (SZ_64K << fla) / 2;
+ } else {
eeprom->word_size = 2048;
dev_info(hw->dev, "Unprogrammed Flash detected, "
"limiting access to first 4KB\n");
--
2.11.0
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2017-10-09 9:36 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-09 9:36 [PATCH 0/3] e1000: access to flash on i210 Uwe Kleine-König
2017-10-09 9:36 ` [PATCH 1/3] e1000: implement register mapping for E1000_{EERD, FLSW{CTL, DATA, CNT}} Uwe Kleine-König
2017-10-09 18:22 ` Andrey Smirnov
2017-10-09 18:33 ` [PATCH 1/3] e1000: implement register mapping for E1000_{EERD,FLSW{CTL,DATA,CNT}} Uwe Kleine-König
2017-10-09 9:36 ` Uwe Kleine-König [this message]
2017-10-09 18:24 ` [PATCH 2/3] e1000: implement support for smaller flash chips Andrey Smirnov
2017-10-09 9:36 ` [PATCH 3/3] HACK: e1000: don't check for FLSWCTL.GLDONE when waiting for idle Uwe Kleine-König
2017-10-09 14:24 ` Uwe Kleine-König
2017-10-09 18:15 ` Andrey Smirnov
2017-10-09 18:41 ` Uwe Kleine-König
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20171009093616.12686-3-u.kleine-koenig@pengutronix.de \
--to=u.kleine-koenig@pengutronix.de \
--cc=andrew.smirnov@gmail.com \
--cc=barebox@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox