From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Subject: [PATCH v2 91/99] ram: rk3399: Set lpddr4 ca odt Date: Mon, 17 Jun 2019 13:02:44 +0530 Message-ID: <20190617073252.27810-92-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 Set CA ODT based identified controller in lpddr4 as part of LPDDR set rate initialization phase. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 49 +++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index ddda6f8ebd..c5521e730d 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1845,6 +1845,54 @@ static void set_lpddr4_dq_odt(const struct chan_info *chan, } } +static void set_lpddr4_ca_odt(const struct chan_info *chan, + struct rk3399_sdram_params *params, u32 ctl, + bool en, bool ctl_phy_reg, u32 mr5) +{ + u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg); + u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg); + struct io_setting *io; + u32 reg_value; + + if (!en) + return; + + io = lpddr4_get_io_settings(params, mr5); + + reg_value = io->ca_odt; + + switch (ctl) { + case 0: + clrsetbits_le32(&denali_ctl[139], 0x7 << 28, reg_value << 28); + clrsetbits_le32(&denali_ctl[153], 0x7 << 28, reg_value << 28); + + clrsetbits_le32(&denali_pi[132], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_pi[139], 0x7 << 20, reg_value << 20); + clrsetbits_le32(&denali_pi[147], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_pi[154], 0x7 << 20, reg_value << 20); + break; + case 1: + clrsetbits_le32(&denali_ctl[140], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_ctl[154], 0x7 << 4, reg_value << 4); + + clrsetbits_le32(&denali_pi[129], 0x7 << 20, reg_value << 20); + clrsetbits_le32(&denali_pi[137], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_pi[144], 0x7 << 20, reg_value << 20); + clrsetbits_le32(&denali_pi[152], 0x7 << 4, reg_value << 4); + break; + case 2: + default: + clrsetbits_le32(&denali_ctl[140], 0x7 << 12, (reg_value << 12)); + clrsetbits_le32(&denali_ctl[154], 0x7 << 12, (reg_value << 12)); + + clrsetbits_le32(&denali_pi[127], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_pi[134], 0x7 << 20, reg_value << 20); + clrsetbits_le32(&denali_pi[142], 0x7 << 4, reg_value << 4); + clrsetbits_le32(&denali_pi[149], 0x7 << 20, reg_value << 20); + break; + } +} + static void lpddr4_copy_phy(struct dram_info *dram, struct rk3399_sdram_params *params, u32 phy, struct rk3399_sdram_params *timings, @@ -2092,6 +2140,7 @@ static void lpddr4_copy_phy(struct dram_info *dram, ctl = lpddr4_get_ctl(timings, phy); set_lpddr4_dq_odt(&dram->chan[channel], timings, ctl, true, true, mr5); + set_lpddr4_ca_odt(&dram->chan[channel], timings, ctl, true, true, mr5); /* * if phy_sw_master_mode_x not bypass mode, -- 2.18.0.321.gffc6fa0e3