From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jagan Teki Subject: [PATCH v2 12/99] ram: rk3399: Add channel number encoder macro Date: Mon, 17 Jun 2019 13:01:25 +0530 Message-ID: <20190617073252.27810-13-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 simplified and meaningful macro for channel number. Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- arch/arm/include/asm/arch-rockchip/sdram_common.h | 2 ++ drivers/ram/rockchip/sdram_rk3399.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h index ce1b62982c..a565f8d045 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_common.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h @@ -35,6 +35,8 @@ #define SYS_REG_ROW_3_4_MASK 1 #define SYS_REG_CHINFO_SHIFT(ch) (28 + (ch)) #define SYS_REG_ENC_DDRTYPE(n) ((n) << SYS_REG_DDRTYPE_SHIFT) +#define SYS_REG_ENC_NUM_CH(n) (((n) - SYS_REG_NUM_CH_MASK) << \ + SYS_REG_NUM_CH_SHIFT) #define SYS_REG_RANK_SHIFT(ch) (11 + (ch) * 16) #define SYS_REG_RANK_MASK 1 #define SYS_REG_COL_SHIFT(ch) (9 + (ch) * 16) diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 28178f4ee9..ad2d03729d 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -1008,7 +1008,7 @@ static void dram_all_config(struct dram_info *dram, unsigned int channel, idx; sys_reg |= SYS_REG_ENC_DDRTYPE(params->base.dramtype); - sys_reg |= (params->base.num_channels - 1) << SYS_REG_NUM_CH_SHIFT; + sys_reg |= SYS_REG_ENC_NUM_CH(params->base.num_channels); for (channel = 0, idx = 0; (idx < params->base.num_channels) && (channel < 2); -- 2.18.0.321.gffc6fa0e3