[U-Boot] [PATCH] am33xx: Enable DDR3 for DDR3 version of beaglebone
Joel A Fernandes
joelagnel at ti.com
Tue Sep 25 18:49:47 CEST 2012
DDR3 support is tested and working with beaglebone hardware. Include a check
for this board type and configure DDR3. The timings and other configuration
match EVM SK.
Signed-off-by: Joel A Fernandes <joelagnel at ti.com>
---
arch/arm/cpu/armv7/am33xx/board.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/arm/cpu/armv7/am33xx/board.c b/arch/arm/cpu/armv7/am33xx/board.c
index ecc2671..13615cd 100644
--- a/arch/arm/cpu/armv7/am33xx/board.c
+++ b/arch/arm/cpu/armv7/am33xx/board.c
@@ -64,6 +64,11 @@ static inline int board_is_bone(void)
return !strncmp(header.name, "A335BONE", HDR_NAME_LEN);
}
+static inline int board_is_bone_lt(void)
+{
+ return !strncmp(header.name, "A335BNLT", HDR_NAME_LEN);
+}
+
static inline int board_is_evm_sk(void)
{
return !strncmp("A335X_SK", header.name, HDR_NAME_LEN);
@@ -124,7 +129,7 @@ static int read_eeprom(void)
static short inline board_memory_type(void)
{
/* The following boards are known to use DDR3. */
- if (board_is_evm_sk())
+ if (board_is_evm_sk() || board_is_bone_lt())
return EMIF_REG_SDRAM_TYPE_DDR3;
return EMIF_REG_SDRAM_TYPE_DDR2;
@@ -283,7 +288,7 @@ int board_eth_init(bd_t *bis)
return -1;
}
- if (board_is_bone()) {
+ if (board_is_bone() || board_is_bone_lt()) {
writel(MII_MODE_ENABLE, &cdev->miisel);
cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
PHY_INTERFACE_MODE_MII;
--
1.7.9.5
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