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-rw-r--r--board/ti/am335x/README28
-rw-r--r--board/ti/am335x/board.c6
2 files changed, 28 insertions, 6 deletions
diff --git a/board/ti/am335x/README b/board/ti/am335x/README
index 67b5246..2a30ab8 100644
--- a/board/ti/am335x/README
+++ b/board/ti/am335x/README
@@ -13,7 +13,33 @@ documented in TI's reference designs:
- AM335x EVM SK
- Beaglebone White
- Beaglebone Black
-'
+
+Customization
+=============
+
+Given that all of the above boards are reference platforms (and the
+Beaglebone platforms are OSHA), it is likely that this platform code and
+configuration will be used as the basis of a custom platform. It is
+worth noting that aside from things such as NAND or MMC only being
+required if a custom platform makes use of these blocks, the following
+are required, depending on design:
+
+- GPIO is only required if DDR3 power is controlled in a way similar to
+ EVM SK
+- SPI is only required for SPI flash, or exposing the SPI bus.
+
+The following blocks are required:
+- I2C, to talk with the PMIC and ensure that we do not run afoul of
+ errata 1.0.24.
+
+When removing options as part of customization,
+CONFIG_EXTRA_ENV_SETTINGS will need additional care to update for your
+needs and to remove no longer relevant options as in some cases we
+define additional text blocks (such as for NAND or DFU strings). Also
+note that all of the SPL options are grouped together, rather than with
+the IP blocks, so both areas will need their choices updated to reflect
+the custom design.
+
NAND
====
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index 04c37e2..cc04426 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -30,10 +30,6 @@
DECLARE_GLOBAL_DATA_PTR;
-/* MII mode defines */
-#define MII_MODE_ENABLE 0x0
-#define RGMII_MODE_ENABLE 0x3A
-
/* GPIO that controls power to DDR on EVM-SK */
#define GPIO_DDR_VTT_EN 7
@@ -460,7 +456,7 @@ int board_eth_init(bd_t *bis)
cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
PHY_INTERFACE_MODE_MII;
} else {
- writel(RGMII_MODE_ENABLE, &cdev->miisel);
+ writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
PHY_INTERFACE_MODE_RGMII;
}