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authorStefan Agner <stefan.agner@toradex.com>2018-12-14 15:26:00 +0100
committerStefan Agner <stefan.agner@toradex.com>2019-04-05 22:04:46 +0200
commitf2275625b0f776d23026036487916be7dc704579 (patch)
tree272dc6bbd2e9c4ec4ca4fd3966f675782259a81e
parent83a53c1c0c6fd813bd655b4f88fd07bf798e11d7 (diff)
ARM: vf610: ddrmc: program Dummy DDRBYTE1/2
The Vybrid reference manual VFXXXRM Rev. 0 10/2016 states in chapter 5.2.6.1 DUMMY PADS (DDR/QuadSPI) that those pads need to be programed for correct operation of DDR. Assume the default DDR pin configuration which seems to work well on a Colibri VF50. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> (cherry picked from commit a95d444055134fd8f0e1f2bd4c11222170fe6dc5)
-rw-r--r--arch/arm/imx-common/ddrmc-vf610.c2
-rw-r--r--arch/arm/include/asm/arch-vf610/iomux-vf610.h2
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/imx-common/ddrmc-vf610.c b/arch/arm/imx-common/ddrmc-vf610.c
index 2a1d373785..13ee7a7fc6 100644
--- a/arch/arm/imx-common/ddrmc-vf610.c
+++ b/arch/arm/imx-common/ddrmc-vf610.c
@@ -62,6 +62,8 @@ void ddrmc_setup_iomux(const iomux_v3_cfg_t *pads, int pads_count)
VF610_PAD_DDR_WE__DDR_WE_B,
VF610_PAD_DDR_ODT1__DDR_ODT_0,
VF610_PAD_DDR_ODT0__DDR_ODT_1,
+ VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1,
+ VF610_PAD_DDR_DDRBYTE2__DDR_DDRBYTE2,
VF610_PAD_DDR_RESETB,
};
diff --git a/arch/arm/include/asm/arch-vf610/iomux-vf610.h b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
index fe546998c6..6801976eb4 100644
--- a/arch/arm/include/asm/arch-vf610/iomux-vf610.h
+++ b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
@@ -250,6 +250,8 @@ enum {
VF610_PAD_DDR_WE__DDR_WE_B = IOMUX_PAD(0x02d0, 0x02d0, 0, __NA_, 0, VF610_DDR_PAD_CTRL),
VF610_PAD_DDR_ODT1__DDR_ODT_0 = IOMUX_PAD(0x02d4, 0x02d4, 0, __NA_, 0, VF610_DDR_PAD_CTRL),
VF610_PAD_DDR_ODT0__DDR_ODT_1 = IOMUX_PAD(0x02d8, 0x02d8, 0, __NA_, 0, VF610_DDR_PAD_CTRL),
+ VF610_PAD_DDR_DDRBYTE1__DDR_DDRBYTE1 = IOMUX_PAD(0x02dc, 0x02dc, 0, __NA_, 0, VF610_DDR_PAD_CTRL),
+ VF610_PAD_DDR_DDRBYTE2__DDR_DDRBYTE2 = IOMUX_PAD(0x02e0, 0x02e0, 0, __NA_, 0, VF610_DDR_PAD_CTRL),
};
#endif /* __IOMUX_VF610_H__ */