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[209.85.220.65]) by mx.google.com with SMTPS id u28sor11879475pgl.9.2019.06.11.07.56.09 for (Google Transport Security); Tue, 11 Jun 2019 07:56:09 -0700 (PDT) Received-SPF: pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; X-Received: by 2002:a63:d415:: with SMTP id a21mr2996509pgh.229.1560264969049; Tue, 11 Jun 2019 07:56:09 -0700 (PDT) Received: from localhost.localdomain ([115.97.180.18]) by smtp.gmail.com with ESMTPSA id e9sm16206208pfn.154.2019.06.11.07.56.05 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 11 Jun 2019 07:56:08 -0700 (PDT) From: Jagan Teki To: Simon Glass , Philipp Tomsich , Kever Yang , YouMin Chen , u-boot@lists.denx.de Cc: gajjar04akash@gmail.com, linux-rockchip@lists.infradead.org, linux-amarula@amarulasolutions.com, Jagan Teki Subject: [PATCH 65/92] ram: rk3399: Configure SLEWP_EN, SLEWN_EN for lpddr4 Date: Tue, 11 Jun 2019 20:21:08 +0530 Message-Id: <20190611145135.21399-66-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190611145135.21399-1-jagan@amarulasolutions.com> References: <20190611145135.21399-1-jagan@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=IoLqh2nF; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Configure SLEWP_EN, SLEWN_EN for lpddr4 during phy IO config. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 4328790a4f..78e249e164 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -37,6 +37,8 @@ #define PHY_BOOSTP_EN 0x1 #define PHY_BOOSTN_EN 0x1 +#define PHY_SLEWP_EN 0x1 +#define PHY_SLEWN_EN 0x1 #define CRU_SFTRST_DDR_CTRL(ch, n) ((0x1 << (8 + 16 + (ch) * 4)) | \ ((n) << (8 + (ch) * 4))) @@ -335,6 +337,25 @@ static int phy_io_config(const struct chan_info *chan, clrsetbits_le32(&denali_phy[937], 0xff << 20, reg_value << 20); /* PHY_939 PHY_PAD_CS_DRIVE */ clrsetbits_le32(&denali_phy[939], 0xff << 20, reg_value << 20); + + /* SLEWP_EN & SLEWN_EN */ + reg_value = ((PHY_SLEWP_EN << 3) | PHY_SLEWN_EN); + /* PHY_924 PHY_PAD_FDBK_DRIVE */ + clrsetbits_le32(&denali_phy[924], 0x3f << 8, reg_value << 8); + /* PHY_926 PHY_PAD_DATA_DRIVE */ + clrsetbits_le32(&denali_phy[926], 0x3f, reg_value); + /* PHY_927 PHY_PAD_DQS_DRIVE */ + clrsetbits_le32(&denali_phy[927], 0x3f, reg_value); + /* PHY_928 PHY_PAD_ADDR_DRIVE */ + clrsetbits_le32(&denali_phy[928], 0x3f << 8, reg_value << 8); + /* PHY_929 PHY_PAD_CLK_DRIVE */ + clrsetbits_le32(&denali_phy[929], 0x3f << 8, reg_value << 8); + /* PHY_935 PHY_PAD_CKE_DRIVE */ + clrsetbits_le32(&denali_phy[935], 0x3f << 8, reg_value << 8); + /* PHY_937 PHY_PAD_RST_DRIVE */ + clrsetbits_le32(&denali_phy[937], 0x3f << 8, reg_value << 8); + /* PHY_939 PHY_PAD_CS_DRIVE */ + clrsetbits_le32(&denali_phy[939], 0x3f << 8, reg_value << 8); } /* speed setting */