[U-Boot] [PATCH v1 1/2] colibri_imx7: add compatible string used in vanilla Linux
From: Stefan Agner stefan.agner@toradex.com
Device trees from vanilla Linux do not specify a i.MX 7 specific compatible string. Make sure to set partitions also when booting upstream Linux.
Signed-off-by: Stefan Agner stefan.agner@toradex.com ---
board/toradex/colibri_imx7/colibri_imx7.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c index cd98ec8216..f35183fb2d 100644 --- a/board/toradex/colibri_imx7/colibri_imx7.c +++ b/board/toradex/colibri_imx7/colibri_imx7.c @@ -410,6 +410,7 @@ int ft_board_setup(void *blob, bd_t *bd) #if defined(CONFIG_FDT_FIXUP_PARTITIONS) static struct node_info nodes[] = { { "fsl,imx7d-gpmi-nand", MTD_DEV_TYPE_NAND, }, /* NAND flash */ + { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, }, };
/* Update partition nodes using info from mtdparts env var */
From: Stefan Agner stefan.agner@toradex.com
This makes sure that all Colibri iMX7 modules work with the same timing. The changes are: - Disable ODT on read (JEDEC standard JESD79-3F says in chapter 5.2.3 ODT during Reads: "As the DDR3 SDRAM can not terminate and drive at the same time, RTT must be disabled at least half a clock cycle..." and also MX7D SABRESD is disabling it) This alone fixed memory issues for two Colibri iMX7 1GB modules which showed issues before - Make sure tRFC(min) is at least 260ns - Make sure tRC is >50.625ns - tRP needs to be >13.125ns, we can lower from 18.75ns to 15ns - tFAW is not relevant, leave at reset
Signed-off-by: Stefan Agner stefan.agner@toradex.com Acked-by: Marcel Ziswiler marcel.ziswiler@toradex.com ---
board/toradex/colibri_imx7/imximage.cfg | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/board/toradex/colibri_imx7/imximage.cfg b/board/toradex/colibri_imx7/imximage.cfg index 1d66884df4..25cfd5c6f8 100644 --- a/board/toradex/colibri_imx7/imximage.cfg +++ b/board/toradex/colibri_imx7/imximage.cfg @@ -57,7 +57,7 @@ DATA 4 0x307a01a4 0x00100020 /* DDRC_DFIUPD2 */ DATA 4 0x307a01a8 0x80100004 /* DDRC_RFSHTMG */ -DATA 4 0x307a0064 0x00400045 +DATA 4 0x307a0064 0x00400046 /* DDRC_MP_PCTRL_0 */ DATA 4 0x307a0490 0x00000001 /* DDRC_INIT0 */ @@ -73,15 +73,15 @@ DATA 4 0x307a00e4 0x00100004 /* DDRC_RANKCTL */ DATA 4 0x307a00f4 0x0000033f /* DDRC_DRAMTMG0 */ -DATA 4 0x307a0100 0x090b090a +DATA 4 0x307a0100 0x0910090a /* DDRC_DRAMTMG1 */ -DATA 4 0x307a0104 0x000d020d +DATA 4 0x307a0104 0x000d020e /* DDRC_DRAMTMG2 */ DATA 4 0x307a0108 0x03040307 /* DDRC_DRAMTMG3 */ DATA 4 0x307a010c 0x00002006 /* DDRC_DRAMTMG4 */ -DATA 4 0x307a0110 0x04020205 +DATA 4 0x307a0110 0x04020204 /* DDRC_DRAMTMG5 */ DATA 4 0x307a0114 0x03030202 /* DDRC_DRAMTMG8 */ @@ -105,7 +105,7 @@ DATA 4 0x307a0218 0x07070707 /* DDRC_ODTCFG */ DATA 4 0x307a0240 0x06000601 /* DDRC_ODTMAP */ -DATA 4 0x307a0244 0x00000011 +DATA 4 0x307a0244 0x00000001 /* SRC_DDRC_RCR */ DATA 4 0x30391000 0x00000000 /* DDR_PHY_PHY_CON0 */
participants (1)
-
Stefan Agner