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| author | Tom Rini <trini@ti.com> | 2013-03-18 12:31:00 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-03-18 14:37:18 -0400 |
| commit | 0ce033d2582129243aca10d3072a221386bbba44 (patch) | |
| tree | 6e50a3f4eed22007549dc740d0fa647a6c8cec5b /arch/arm/cpu/armv7/am33xx/ddr.c | |
| parent | b5bec88434adb52413f1bc33fa63d7642cb8fd35 (diff) | |
| parent | b27673ccbd3d5435319b5c09c3e7061f559f925d (diff) | |
| download | olio-uboot-2014.01-0ce033d2582129243aca10d3072a221386bbba44.tar.xz olio-uboot-2014.01-0ce033d2582129243aca10d3072a221386bbba44.zip | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Albert's rework of the linker scripts conflicted with Simon's making
everyone use __bss_end. We also had a minor conflict over
README.scrapyard being added to in mainline and enhanced in
u-boot-arm/master with proper formatting.
Conflicts:
arch/arm/cpu/ixp/u-boot.lds
arch/arm/cpu/u-boot.lds
arch/arm/lib/Makefile
board/actux1/u-boot.lds
board/actux2/u-boot.lds
board/actux3/u-boot.lds
board/dvlhost/u-boot.lds
board/freescale/mx31ads/u-boot.lds
doc/README.scrapyard
include/configs/tegra-common.h
Build tested for all of ARM and run-time tested on am335x_evm.
Signed-off-by: Tom Rini <trini@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7/am33xx/ddr.c')
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/ddr.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c index fd9fc4a72..448cc4015 100644 --- a/arch/arm/cpu/armv7/am33xx/ddr.c +++ b/arch/arm/cpu/armv7/am33xx/ddr.c @@ -45,13 +45,19 @@ static struct ddr_cmdtctrl *ioctrl_reg = { */ void config_sdram(const struct emif_regs *regs) { - writel(regs->ref_ctrl, &emif_reg->emif_sdram_ref_ctrl); - writel(regs->ref_ctrl, &emif_reg->emif_sdram_ref_ctrl_shdw); - if (regs->zq_config){ + if (regs->zq_config) { + /* + * A value of 0x2800 for the REF CTRL will give us + * about 570us for a delay, which will be long enough + * to configure things. + */ + writel(0x2800, &emif_reg->emif_sdram_ref_ctrl); writel(regs->zq_config, &emif_reg->emif_zq_config); writel(regs->sdram_config, &cstat->secure_emif_sdram_config); } writel(regs->sdram_config, &emif_reg->emif_sdram_config); + writel(regs->ref_ctrl, &emif_reg->emif_sdram_ref_ctrl); + writel(regs->ref_ctrl, &emif_reg->emif_sdram_ref_ctrl_shdw); } /** |