From: Tom Rini <trini@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 03/12] OMAP3: Change mem_ok to clear again after reading back
Date: Wed, 9 Nov 2011 10:10:57 -0700 [thread overview]
Message-ID: <1320858666-17113-4-git-send-email-trini@ti.com> (raw)
In-Reply-To: <1320858666-17113-1-git-send-email-trini@ti.com>
It's possible to need to call this function on the same banks multiple
times so we want to be sure that 'pos A' is cleared out again at the
end.
Signed-off-by: Tom Rini <trini@ti.com>
---
arch/arm/cpu/armv7/omap3/mem.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/arm/cpu/armv7/omap3/mem.c b/arch/arm/cpu/armv7/omap3/mem.c
index a01c303..cd5fe5c 100644
--- a/arch/arm/cpu/armv7/omap3/mem.c
+++ b/arch/arm/cpu/armv7/omap3/mem.c
@@ -86,6 +86,7 @@ u32 mem_ok(u32 cs)
writel(0x0, addr + 4); /* remove pattern off the bus */
val1 = readl(addr + 0x400); /* get pos A value */
val2 = readl(addr); /* get val2 */
+ writel(0x0, addr + 0x400); /* clear pos A */
if ((val1 != 0) || (val2 != pattern)) /* see if pos A val changed */
return 0;
--
1.7.0.4
next prev parent reply other threads:[~2011-11-09 17:10 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-09 17:10 [U-Boot] [PATCH v3 0/12] Add more framework to OMAP3 SPL, port more boards Tom Rini
2011-11-09 17:10 ` [U-Boot] [PATCH v3 01/12] OMAP3: Update SDRC dram_init to always call make_cs1_contiguous() Tom Rini
2011-11-09 17:10 ` [U-Boot] [PATCH v3 02/12] OMAP3: Add a helper function to set timings in SDRC Tom Rini
2011-11-09 17:10 ` Tom Rini [this message]
2011-11-09 17:10 ` [U-Boot] [PATCH v3 04/12] OMAP3: Remove get_mem_type prototype Tom Rini
2011-11-09 17:10 ` [U-Boot] [PATCH v3 05/12] OMAP3: Add optimal SDRC autorefresh control values Tom Rini
2011-11-10 6:20 ` Heiko Schocher
2011-11-10 21:32 ` Robert Hurdle
2011-11-17 21:44 ` Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 06/12] OMAP3: Suffix all Micron memory timing parts with their speed Tom Rini
2011-11-10 6:23 ` Heiko Schocher
2011-11-17 21:50 ` Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 07/12] OMAP3 SPL: Rework memory initalization and devkit8000 support Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 08/12] OMAP3 SPL: Add identify_nand_chip function Tom Rini
2011-11-10 6:25 ` Heiko Schocher
2011-11-17 22:36 ` Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 09/12] OMAP3: Add SPL support to Beagleboard Tom Rini
2011-11-10 6:28 ` Heiko Schocher
2011-11-10 14:34 ` Tom Rini
2011-11-10 14:46 ` Heiko Schocher
2011-11-09 17:11 ` [U-Boot] [PATCH v3 10/12] OMAP3: Add SPL support to omap3_evm Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 11/12] AM3517: Add SPL support Tom Rini
2011-11-09 17:11 ` [U-Boot] [PATCH v3 12/12] AM3517 CraneBoard: " Tom Rini
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