[PATCH 4/7] imx: gpmi: Add register needed to control nand bus timing
Dario Binacchi
dario.binacchi at amarulasolutions.com
Wed Sep 28 10:45:06 CEST 2022
From: Michael Trimarchi <michael at amarulasolutions.com>
It is used as delay for gpmi write strobe.
Signed-off-by: Michael Trimarchi <michael at amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi at amarulasolutions.com>
---
arch/arm/include/asm/mach-imx/regs-gpmi.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/include/asm/mach-imx/regs-gpmi.h b/arch/arm/include/asm/mach-imx/regs-gpmi.h
index 33daa53c45df..7a1577863195 100644
--- a/arch/arm/include/asm/mach-imx/regs-gpmi.h
+++ b/arch/arm/include/asm/mach-imx/regs-gpmi.h
@@ -93,6 +93,11 @@ struct mxs_gpmi_regs {
#define GPMI_CTRL1_DECOUPLE_CS (1 << 24)
#define GPMI_CTRL1_WRN_DLY_SEL_MASK (0x3 << 22)
#define GPMI_CTRL1_WRN_DLY_SEL_OFFSET 22
+#define GPMI_CTRL1_WRN_DLY_SEL_4_TO_8NS 0x0
+#define GPMI_CTRL1_WRN_DLY_SEL_6_TO_10NS 0x1
+#define GPMI_CTRL1_WRN_DLY_SEL_7_TO_12NS 0x2
+#define GPMI_CTRL1_WRN_DLY_SEL_NO_DELAY 0x3
+
#define GPMI_CTRL1_TIMEOUT_IRQ_EN (1 << 20)
#define GPMI_CTRL1_GANGED_RDYBUSY (1 << 19)
#define GPMI_CTRL1_BCH_MODE (1 << 18)
@@ -111,6 +116,10 @@ struct mxs_gpmi_regs {
#define GPMI_CTRL1_ATA_IRQRDY_POLARITY (1 << 2)
#define GPMI_CTRL1_CAMERA_MODE (1 << 1)
#define GPMI_CTRL1_GPMI_MODE (1 << 0)
+#define GPMI_CTRL1_CLEAR_MASK (GPMI_CTRL1_WRN_DLY_SEL_MASK | \
+ GPMI_CTRL1_DLL_ENABLE | \
+ GPMI_CTRL1_RDN_DELAY_MASK | \
+ GPMI_CTRL1_HALF_PERIOD)
#define GPMI_TIMING0_ADDRESS_SETUP_MASK (0xff << 16)
#define GPMI_TIMING0_ADDRESS_SETUP_OFFSET 16
--
2.32.0
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