From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 2/7] ARM: i.MX6: esdctl: Fix CS0_end for 4GiB/cs
Date: Fri, 1 Apr 2016 14:10:39 +0200 [thread overview]
Message-ID: <1459512644-8581-2-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1459512644-8581-1-git-send-email-s.hauer@pengutronix.de>
On i.MX6 a single chipselect can have 4GiB. In this case the calculation
for CS0_end overflows the 7 bit field. Clamp it to 127, the maximum
supported value.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/imx6-mmdc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/imx6-mmdc.c b/arch/arm/mach-imx/imx6-mmdc.c
index 146df57..8f661e3 100644
--- a/arch/arm/mach-imx/imx6-mmdc.c
+++ b/arch/arm/mach-imx/imx6-mmdc.c
@@ -1199,7 +1199,7 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *sysinfo,
twtr = ROUND(max(4 * clkper, 7500) / clkper, 1) - 1;
trcd = trp;
trtp = twtr;
- cs0_end = 4 * sysinfo->cs_density - 1 + 8;
+ cs0_end = min(4 * sysinfo->cs_density - 1 + 8, 127);
debug("density:%d Gb (%d Gb per chip)\n",
sysinfo->cs_density, ddr3_cfg->density);
--
2.7.0
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next prev parent reply other threads:[~2016-04-01 12:11 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-01 12:10 [PATCH 1/7] ARM: i.MX6: esdctl: Fix memsize calculation " Sascha Hauer
2016-04-01 12:10 ` Sascha Hauer [this message]
2016-04-01 12:10 ` [PATCH 3/7] ARM: i.MX: remove unused imx-flash-header.h Sascha Hauer
2016-04-01 12:10 ` [PATCH 4/7] ARM: i.MX: xload-esdhc: Add GPL header Sascha Hauer
2016-04-01 12:10 ` [PATCH 5/7] ARM: i.MX: xload-esdhc: Fix typo successul -> successful Sascha Hauer
2016-04-01 12:10 ` [PATCH 6/7] ARM: i.MX: xload-esdhc: Add debug messages Sascha Hauer
2016-04-01 12:10 ` [PATCH 7/7] ARM: i.MX: xload-esdhc: Find entry in image Sascha Hauer
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