From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Subject: [PATCH 64/92] ram: rk3399: Configure BOOSTP_EN, BOOSTN_EN for lpddr4 Date: Tue, 11 Jun 2019 20:21:07 +0530 Message-ID: <20190611145135.21399-65-jagan@amarulasolutions.com> References: <20190611145135.21399-1-jagan@amarulasolutions.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190611145135.21399-1-jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+glpar-linux-rockchip=m.gmane.org-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org To: Simon Glass , Philipp Tomsich , Kever Yang , YouMin Chen , u-boot-0aAXYlwwYIKGBzrmiIFOJg@public.gmane.org Cc: linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-amarula-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org, Jagan Teki , gajjar04akash-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org List-Id: linux-rockchip.vger.kernel.org Configure BOOSTP_EN, BOOSTN_EN for lpddr4 during phy IO config. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 7d2359740c..4328790a4f 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -35,6 +35,9 @@ #define PHY_DRV_ODT_40 0xe #define PHY_DRV_ODT_34_3 0xf +#define PHY_BOOSTP_EN 0x1 +#define PHY_BOOSTN_EN 0x1 + #define CRU_SFTRST_DDR_CTRL(ch, n) ((0x1 << (8 + 16 + (ch) * 4)) | \ ((n) << (8 + (ch) * 4))) #define CRU_SFTRST_DDR_PHY(ch, n) ((0x1 << (9 + 16 + (ch) * 4)) | \ @@ -313,6 +316,27 @@ static int phy_io_config(const struct chan_info *chan, /* PHY_939 PHY_PAD_CS_DRIVE */ clrsetbits_le32(&denali_phy[939], 0x7 << 14, mode_sel << 14); + if (sdram_params->base.dramtype == LPDDR4) { + /* BOOSTP_EN & BOOSTN_EN */ + reg_value = ((PHY_BOOSTP_EN << 4) | PHY_BOOSTN_EN); + /* PHY_925 PHY_PAD_FDBK_DRIVE2 */ + clrsetbits_le32(&denali_phy[925], 0xff << 8, reg_value << 8); + /* PHY_926 PHY_PAD_DATA_DRIVE */ + clrsetbits_le32(&denali_phy[926], 0xff << 12, reg_value << 12); + /* PHY_927 PHY_PAD_DQS_DRIVE */ + clrsetbits_le32(&denali_phy[927], 0xff << 14, reg_value << 14); + /* PHY_928 PHY_PAD_ADDR_DRIVE */ + clrsetbits_le32(&denali_phy[928], 0xff << 20, reg_value << 20); + /* PHY_929 PHY_PAD_CLK_DRIVE */ + clrsetbits_le32(&denali_phy[929], 0xff << 22, reg_value << 22); + /* PHY_935 PHY_PAD_CKE_DRIVE */ + clrsetbits_le32(&denali_phy[935], 0xff << 20, reg_value << 20); + /* PHY_937 PHY_PAD_RST_DRIVE */ + 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); + } + /* speed setting */ if (sdram_params->base.ddr_freq < 400) speed = 0x0; -- 2.18.0.321.gffc6fa0e3