From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Subject: [PATCH v2 61/99] ram: rk3399: Add lpddr4 rank mask for wdql training Date: Mon, 17 Jun 2019 13:02:14 +0530 Message-ID: <20190617073252.27810-62-jagan@amarulasolutions.com> References: <20190617073252.27810-1-jagan@amarulasolutions.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190617073252.27810-1-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, gajjar04akash-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-amarula-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org, Jagan Teki , Manivannan Sadhasivam List-Id: linux-rockchip.vger.kernel.org Add rank_mask based on the rank number for lpddr4. This would keep the wdql data training loop based on the desired rank mask value instead of looping for all values. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index d967a602bc..935e3c495e 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -925,7 +925,10 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel, /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ writel(0x00003f7c, (&denali_pi[175])); - rank_mask = (rank == 1) ? 0x1 : 0x3; + if (params->base.dramtype == LPDDR4) + rank_mask = (rank == 1) ? 0x5 : 0xf; + else + rank_mask = (rank == 1) ? 0x1 : 0x3; for (i = 0; i < 4; i++) { if (!(rank_mask & (1 << i))) -- 2.18.0.321.gffc6fa0e3 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Date: Mon, 17 Jun 2019 13:02:14 +0530 Subject: [U-Boot] [PATCH v2 61/99] ram: rk3399: Add lpddr4 rank mask for wdql training In-Reply-To: <20190617073252.27810-1-jagan@amarulasolutions.com> References: <20190617073252.27810-1-jagan@amarulasolutions.com> Message-ID: <20190617073252.27810-62-jagan@amarulasolutions.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Add rank_mask based on the rank number for lpddr4. This would keep the wdql data training loop based on the desired rank mask value instead of looping for all values. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index d967a602bc..935e3c495e 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -925,7 +925,10 @@ static int data_training_wdql(const struct chan_info *chan, u32 channel, /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ writel(0x00003f7c, (&denali_pi[175])); - rank_mask = (rank == 1) ? 0x1 : 0x3; + if (params->base.dramtype == LPDDR4) + rank_mask = (rank == 1) ? 0x5 : 0xf; + else + rank_mask = (rank == 1) ? 0x1 : 0x3; for (i = 0; i < 4; i++) { if (!(rank_mask & (1 << i))) -- 2.18.0.321.gffc6fa0e3