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From: Roland Hieber <r.hieber@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Roland Hieber <r.hieber@pengutronix.de>
Subject: [PATCH v3 03/14] ARM: MXS: i.MX28: allow setup of low-voltage SDRAM
Date: Mon, 13 Aug 2018 15:02:49 +0200	[thread overview]
Message-ID: <20180813130300.32497-4-r.hieber@pengutronix.de> (raw)
In-Reply-To: <20180813130300.32497-1-r.hieber@pengutronix.de>

The PINCTRL_*_DDR_MODE_* defines are now needed in global scope, so move
them to the respective include header.

Signed-off-by: Roland Hieber <r.hieber@pengutronix.de>
---
 arch/arm/boards/duckbill/lowlevel.c           | 3 ++-
 arch/arm/boards/freescale-mx28-evk/lowlevel.c | 3 ++-
 arch/arm/boards/karo-tx28/lowlevel.c          | 3 ++-
 arch/arm/mach-mxs/include/mach/init.h         | 7 ++++++-
 arch/arm/mach-mxs/mem-init.c                  | 9 +++------
 5 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boards/duckbill/lowlevel.c b/arch/arm/boards/duckbill/lowlevel.c
index 2922e40f2a..3adda68d77 100644
--- a/arch/arm/boards/duckbill/lowlevel.c
+++ b/arch/arm/boards/duckbill/lowlevel.c
@@ -55,7 +55,8 @@ static noinline void duckbill_init(void)
 
 	pr_debug("initializing SDRAM...\n");
 
-	mx28_mem_init(mx28_dram_vals_default);
+	mx28_mem_init(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
+			mx28_dram_vals_default);
 
 	pr_debug("DONE\n");
 }
diff --git a/arch/arm/boards/freescale-mx28-evk/lowlevel.c b/arch/arm/boards/freescale-mx28-evk/lowlevel.c
index 4d45a03ba2..9df60210e6 100644
--- a/arch/arm/boards/freescale-mx28-evk/lowlevel.c
+++ b/arch/arm/boards/freescale-mx28-evk/lowlevel.c
@@ -47,7 +47,8 @@ static noinline void freescale_mx28evk_init(void)
 
 	pr_debug("initializing SDRAM...\n");
 
-	mx28_mem_init(mx28_dram_vals_default);
+	mx28_mem_init(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
+			mx28_dram_vals_default);
 
 	pr_debug("DONE\n");
 }
diff --git a/arch/arm/boards/karo-tx28/lowlevel.c b/arch/arm/boards/karo-tx28/lowlevel.c
index d072637de7..99f8a562cc 100644
--- a/arch/arm/boards/karo-tx28/lowlevel.c
+++ b/arch/arm/boards/karo-tx28/lowlevel.c
@@ -47,7 +47,8 @@ static noinline void karo_tx28_init(void)
 
 	pr_debug("initializing SDRAM...\n");
 
-	mx28_mem_init(mx28_dram_vals_default);
+	mx28_mem_init(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
+			mx28_dram_vals_default);
 
 	pr_debug("DONE\n");
 }
diff --git a/arch/arm/mach-mxs/include/mach/init.h b/arch/arm/mach-mxs/include/mach/init.h
index 6526d303a1..7021981d41 100644
--- a/arch/arm/mach-mxs/include/mach/init.h
+++ b/arch/arm/mach-mxs/include/mach/init.h
@@ -21,8 +21,13 @@ void mxs_power_wait_pswitch(void);
 extern const uint32_t mx28_dram_vals_default[190];
 extern uint32_t mx23_dram_vals[];
 
+#define PINCTRL_EMI_DS_CTRL_DDR_MODE_LPDDR1	(0b00 << 16)
+#define PINCTRL_EMI_DS_CTRL_DDR_MODE_LVDDR2	(0b10 << 16)
+#define PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2	(0b11 << 16)
+
 void mx23_mem_init(void);
-void mx28_mem_init(const uint32_t dram_vals[190]);
+void mx28_mem_init(const int emi_ds_ctrl_ddr_mode,
+		const uint32_t dram_vals[190]);
 void mxs_mem_setup_cpu_and_hbus(void);
 void mxs_mem_setup_vdda(void);
 void mxs_mem_init_clock(unsigned char divider);
diff --git a/arch/arm/mach-mxs/mem-init.c b/arch/arm/mach-mxs/mem-init.c
index ac8bfee18e..7bc6be00b4 100644
--- a/arch/arm/mach-mxs/mem-init.c
+++ b/arch/arm/mach-mxs/mem-init.c
@@ -318,18 +318,15 @@ void mx23_mem_init(void)
 	mxs_mem_setup_cpu_and_hbus();
 }
 
-#define PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2	(0x3 << 16)
-
-void mx28_mem_init(const uint32_t dram_vals[190])
+void mx28_mem_init(const int emi_ds_ctrl_ddr_mode, const uint32_t dram_vals[190])
 {
 	mxs_early_delay(11000);
 
 	/* Fractional divider for ref_emi is 21 ; 480 * 18 / 21 = 411MHz */
 	mxs_mem_init_clock(21);
 
-	/* Set DDR2 mode */
-	writel(PINCTRL_EMI_DS_CTRL_DDR_MODE_DDR2,
-			IMX_IOMUXC_BASE + 0x1b80);
+	/* Set DDR mode */
+	writel(emi_ds_ctrl_ddr_mode, IMX_IOMUXC_BASE + 0x1b80);
 
 	/*
 	 * Configure the DRAM registers
-- 
2.18.0


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  parent reply	other threads:[~2018-08-13 13:04 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-13 13:02 [PATCH v3 00/14] MXS low-level improvements Roland Hieber
2018-08-13 13:02 ` [PATCH v3 01/14] scripts: mxsimage: Allow unencrypted images Roland Hieber
2018-08-13 13:02 ` [PATCH v3 02/14] images: MXS: allow generation of unencrypted bootstreams Roland Hieber
2018-08-13 13:02 ` Roland Hieber [this message]
2018-08-13 13:02 ` [PATCH v3 04/14] ARM: MXS: allow configuration of EMI clock prescaler Roland Hieber
2018-08-13 13:02 ` [PATCH v3 05/14] ARM: i.MX28: Add memory size detection Roland Hieber
2018-08-13 13:02 ` [PATCH v3 06/14] ARM: i.MX23: " Roland Hieber
2018-08-13 13:02 ` [PATCH v3 07/14] ARM: MXS: refactor mx2*_power_init source configuration Roland Hieber
2018-08-13 13:02 ` [PATCH v3 08/14] ARM: MXS: allow starting from battery input without 4P2 source enabled Roland Hieber
2018-08-13 13:02 ` [PATCH v3 09/14] ARM: MXS: make power levels configurable in mx2*_power_init Roland Hieber
2018-08-13 13:02 ` [PATCH v3 10/14] ARM: MXS: fix VDDx brownout setup logic Roland Hieber
2018-08-13 13:02 ` [PATCH v3 11/14] ARM: MXS: make VDDx brownout setup more understandable Roland Hieber
2018-08-13 13:02 ` [PATCH v3 12/14] ARM: MXS: mxs_power_status: use less magic values Roland Hieber
2018-08-13 13:02 ` [PATCH v3 13/14] ARM: MXS: mxs_power_status: align output Roland Hieber
2018-08-13 13:03 ` [PATCH v3 14/14] Documentation: MXS: general update and improvements Roland Hieber
2018-08-14  6:55 ` [PATCH v3 00/14] MXS low-level improvements Sascha Hauer

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