From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Subject: [PATCH v2 69/99] ram: rk3399: Map chipselect for lpddr4 Date: Mon, 17 Jun 2019 13:02:22 +0530 Message-ID: <20190617073252.27810-70-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 Assign desired cs_map values for lpddr4 during set memory map. Initial cs_map values is based on the sdram parameters, so the same will adjusted based dramtype as LPDDR4. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- drivers/ram/rockchip/sdram_rk3399.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index ae227b958f..e03181fbc9 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -188,6 +188,16 @@ static void set_memory_map(const struct chan_info *chan, u32 channel, clrsetbits_le32(&denali_pi[155], (0x3 << 16) | (0x7 << 24), ((3 - sdram_ch->cap_info.bk) << 16) | ((16 - row) << 24)); + + if (IS_ENABLED(CONFIG_RAM_RK3399_LPDDR4)) { + if (cs_map == 1) + cs_map = 0x5; + else if (cs_map == 2) + cs_map = 0xa; + else + cs_map = 0xF; + } + /* PI_41 PI_CS_MAP:RW:24:4 */ clrsetbits_le32(&denali_pi[41], 0xf << 24, cs_map << 24); if (sdram_ch->cap_info.rank == 1 && params->base.dramtype == DDR3) -- 2.18.0.321.gffc6fa0e3