From: Keerthy <j-keerthy@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 2/6] arm: mach-omap2: am33xx: ddr: Add 1ms delay to avoid L3 error
Date: Fri, 12 Apr 2019 12:08:16 +0530 [thread overview]
Message-ID: <20190412063820.25924-3-j-keerthy@ti.com> (raw)
In-Reply-To: <20190412063820.25924-1-j-keerthy@ti.com>
From: Brad Griffis <bgriffis@ti.com>
Add 1ms delay to avoid L3 timeout error during suspend resume.
Signed-off-by: Brad Griffis <bgriffis@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
---
arch/arm/mach-omap2/am33xx/ddr.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-omap2/am33xx/ddr.c b/arch/arm/mach-omap2/am33xx/ddr.c
index 816d4e8e05..5d947a68c3 100644
--- a/arch/arm/mach-omap2/am33xx/ddr.c
+++ b/arch/arm/mach-omap2/am33xx/ddr.c
@@ -138,6 +138,9 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr)
/* Enable read leveling */
writel(0x80000000, &emif_reg[nr]->emif_rd_wr_lvl_ctl);
+ /* Wait 1ms because of L3 timeout error */
+ udelay(1000);
+
/*
* Enable full read and write leveling. Wait for read and write
* leveling bit to clear RDWRLVLFULL_START bit 31
--
2.17.1
next prev parent reply other threads:[~2019-04-12 6:38 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 6:38 [U-Boot] [PATCH 0/6] board: ti: am43xx: Enable hardware leveling Keerthy
2019-04-12 6:38 ` [U-Boot] [PATCH 1/6] arm: mach-omap2: am33xx: ddr: programming of EXT_PHY_CTRL1 and EXT_PHY_CTRL1_SHADOW Keerthy
2019-04-12 6:38 ` Keerthy [this message]
2019-04-12 6:38 ` [U-Boot] [PATCH 3/6] arm: mach-omap2: am33xx: Enable HW Leveling in the rtc+ddr path Keerthy
2019-04-12 6:38 ` [U-Boot] [PATCH 4/6] arm: mach-omap2: am33xx: Disable EMIF_DEVOFF immediately before hw leveling Keerthy
2019-04-26 11:16 ` [U-Boot] [U-Boot, " Tom Rini
2019-04-26 11:53 ` Lokesh Vutla
2019-04-26 12:55 ` Tom Rini
2019-04-26 16:44 ` Keerthy
2019-04-26 16:46 ` Tom Rini
2019-04-26 16:50 ` Keerthy
2019-04-26 16:39 ` Keerthy
2019-04-26 14:11 ` Keerthy
2019-04-12 6:38 ` [U-Boot] [PATCH 5/6] arm: mach-omap2: am33xx: ddr: update value for ext_phy_ctrl_36 Keerthy
2019-04-12 6:38 ` [U-Boot] [PATCH 6/6] board: ti: am43xx: Enable hardware leveling Keerthy
2019-04-13 13:02 ` [U-Boot] [PATCH 0/6] " Tom Rini
2019-04-15 0:49 ` keerthy
2019-04-15 1:05 ` Tom Rini
2019-04-15 2:13 ` keerthy
2019-04-15 8:56 ` Keerthy
2019-04-15 9:22 ` Tero Kristo
2019-04-15 11:28 ` Tom Rini
2019-04-15 12:10 ` Keerthy
2019-04-15 12:14 ` Tom Rini
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