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| author | Ye.Li <B37916@freescale.com> | 2015-07-02 17:40:56 +0800 |
|---|---|---|
| committer | Ye.Li <B37916@freescale.com> | 2015-07-22 15:15:21 +0800 |
| commit | 11f2a91845f9ca9f7656e7a9688df78114785f46 (patch) | |
| tree | 56cec610b25dcb5f5b73d989bdc3eb47089338c2 | |
| parent | d1d50011fff4e8f9cdec9c8093aa0d31fd7019d4 (diff) | |
| download | u-boot-imx-11f2a91845f9ca9f7656e7a9688df78114785f46.zip u-boot-imx-11f2a91845f9ca9f7656e7a9688df78114785f46.tar.gz u-boot-imx-11f2a91845f9ca9f7656e7a9688df78114785f46.tar.bz2 | |
MLK-11217 imx: mx6ul: Modify QSPI PAD DSE to 120ohm
The current pad DSE for QSPI is 60ohm. Per hardware team measurement,
this setting cause too strong drive to clock and data signals. Need
to change the DSE to 120ohm for better signal quality.
Signed-off-by: Ye.Li <B37916@freescale.com>
(cherry picked from commit 60586dcec668e5b863a21d7ca69a0325f405d6da)
3 files changed, 3 insertions, 3 deletions
diff --git a/board/freescale/mx6ul_14x14_ddr3_arm2/mx6ul_14x14_ddr3_arm2.c b/board/freescale/mx6ul_14x14_ddr3_arm2/mx6ul_14x14_ddr3_arm2.c index 41cc579..fd199ee 100644 --- a/board/freescale/mx6ul_14x14_ddr3_arm2/mx6ul_14x14_ddr3_arm2.c +++ b/board/freescale/mx6ul_14x14_ddr3_arm2/mx6ul_14x14_ddr3_arm2.c @@ -418,7 +418,7 @@ static void setup_iomux_uart(void) #define QSPI_PAD_CTRL1 \ (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \ - PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_60ohm) + PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm) static iomux_v3_cfg_t const quadspi_pads[] = { MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1), diff --git a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c index b9d691a..aaca883 100644 --- a/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c +++ b/board/freescale/mx6ul_14x14_evk/mx6ul_14x14_evk.c @@ -426,7 +426,7 @@ static void setup_iomux_uart(void) #define QSPI_PAD_CTRL1 \ (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \ - PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_60ohm) + PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm) static iomux_v3_cfg_t const quadspi_pads[] = { MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1), diff --git a/board/freescale/mx6ul_14x14_lpddr2_arm2/mx6ul_14x14_lpddr2_arm2.c b/board/freescale/mx6ul_14x14_lpddr2_arm2/mx6ul_14x14_lpddr2_arm2.c index ea145f3..251364d 100644 --- a/board/freescale/mx6ul_14x14_lpddr2_arm2/mx6ul_14x14_lpddr2_arm2.c +++ b/board/freescale/mx6ul_14x14_lpddr2_arm2/mx6ul_14x14_lpddr2_arm2.c @@ -397,7 +397,7 @@ static void setup_iomux_uart(void) #define QSPI_PAD_CTRL1 \ (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_MED | \ - PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_60ohm) + PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_120ohm) static iomux_v3_cfg_t const quadspi_pads[] = { MX6_PAD_NAND_WP_B__QSPI_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1), |