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[209.85.220.65]) by mx.google.com with SMTPS id k34sor6850408pgi.67.2019.06.17.00.39.01 for (Google Transport Security); Mon, 17 Jun 2019 00:39:01 -0700 (PDT) Received-SPF: pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; X-Received: by 2002:a65:5004:: with SMTP id f4mr49149352pgo.268.1560757141220; Mon, 17 Jun 2019 00:39:01 -0700 (PDT) Received: from localhost.localdomain ([49.206.203.245]) by smtp.gmail.com with ESMTPSA id m41sm15205998pje.18.2019.06.17.00.38.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Jun 2019 00:39:00 -0700 (PDT) From: Jagan Teki To: Simon Glass , Philipp Tomsich , Kever Yang , YouMin Chen , u-boot@lists.denx.de Cc: Manivannan Sadhasivam , gajjar04akash@gmail.com, linux-rockchip@lists.infradead.org, linux-amarula@amarulasolutions.com, Jagan Teki Subject: [PATCH v2 48/99] ram: rk3399: debug: Add sdram_print_stride Date: Mon, 17 Jun 2019 13:02:01 +0530 Message-Id: <20190617073252.27810-49-jagan@amarulasolutions.com> X-Mailer: git-send-email 2.18.0.321.gffc6fa0e3 In-Reply-To: <20190617073252.27810-1-jagan@amarulasolutions.com> References: <20190617073252.27810-1-jagan@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: jagan@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=Jpmge8Zx; spf=pass (google.com: domain of jagan@amarulasolutions.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jagan@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Add code to print the channel stride, this would help to print the stride of associated channel. Here is sample print on LPDDR4, 50MHz. 256B stride Signed-off-by: Jagan Teki Signed-off-by: YouMin Chen --- .../include/asm/arch-rockchip/sdram_common.h | 5 ++++ drivers/ram/rockchip/sdram_debug.c | 29 +++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h index 7d1372f033..8027b53636 100644 --- a/arch/arm/include/asm/arch-rockchip/sdram_common.h +++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h @@ -133,10 +133,15 @@ inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info, struct sdram_base_params *base) { } + +inline void sdram_print_stride(unsigned int stride) +{ +} #else void sdram_print_dram_type(unsigned char dramtype); void sdram_print_ddr_info(struct sdram_cap_info *cap_info, struct sdram_base_params *base); +void sdram_print_stride(unsigned int stride); #endif /* CONFIG_RAM_ROCKCHIP_DEBUG */ #endif diff --git a/drivers/ram/rockchip/sdram_debug.c b/drivers/ram/rockchip/sdram_debug.c index 19e9225c12..9cf662675b 100644 --- a/drivers/ram/rockchip/sdram_debug.c +++ b/drivers/ram/rockchip/sdram_debug.c @@ -116,3 +116,32 @@ void sdram_print_ddr_info(struct sdram_cap_info *cap_info, printdec(cap >> 20); printascii("MB\n"); } + +void sdram_print_stride(unsigned int stride) +{ + switch (stride) { + case 0xc: + printf("128B stride\n"); + break; + case 5: + case 9: + case 0xd: + case 0x11: + case 0x19: + printf("256B stride\n"); + break; + case 0xa: + case 0xe: + case 0x12: + printf("512B stride\n"); + break; + case 0xf: + printf("4K stride\n"); + break; + case 0x1f: + printf("32MB + 256B stride\n"); + break; + default: + printf("no stride\n"); + } +}