diff options
| author | Tom Rini <trini@ti.com> | 2013-11-07 11:42:57 -0500 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-12-04 08:11:45 -0500 |
| commit | 39245c8699c68f85a5aaa3153d954370920d09c0 (patch) | |
| tree | f402a009ddf3ddbbe9b7732b1a6b8f87e7bb478d /board/siemens | |
| parent | 340e6c830053846d48ba97a73adfac3f5cadfd7e (diff) | |
| download | blackbird-obmc-uboot-39245c8699c68f85a5aaa3153d954370920d09c0.tar.gz blackbird-obmc-uboot-39245c8699c68f85a5aaa3153d954370920d09c0.zip | |
am33xx: Stop modifying certain EMIF4D registers
Based on the definitive guide to EMIF configuration[1] certain registers
that we have been modifying (and are documented registers) should be
left in their reset values rather than modified. This has been tested
on AM335x GP EVM and Beaglebone White.
[1]: http://processors.wiki.ti.com/index.php/AM335x_EMIF_Configuration_tips
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Javier Martinez Canillas <javier@dowhile0.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Tom Rini <trini@ti.com>
Tested-by: Matt Porter <matt.porter@linaro.org>
Diffstat (limited to 'board/siemens')
| -rw-r--r-- | board/siemens/dxr2/board.c | 4 | ||||
| -rw-r--r-- | board/siemens/pxm2/board.c | 5 | ||||
| -rw-r--r-- | board/siemens/rut/board.c | 5 |
3 files changed, 0 insertions, 14 deletions
diff --git a/board/siemens/dxr2/board.c b/board/siemens/dxr2/board.c index 1773ab77d0..3a5e11dc81 100644 --- a/board/siemens/dxr2/board.c +++ b/board/siemens/dxr2/board.c @@ -140,13 +140,9 @@ struct emif_regs dxr2_ddr3_emif_reg_data = { }; struct ddr_data dxr2_ddr3_data = { - .datadldiff0 = PHY_DLL_LOCK_DIFF, }; struct cmd_control dxr2_ddr3_cmd_ctrl_data = { - .cmd0dldiff = 0, - .cmd1dldiff = 0, - .cmd2dldiff = 0, }; /* pass values from eeprom */ dxr2_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1; diff --git a/board/siemens/pxm2/board.c b/board/siemens/pxm2/board.c index 094b4d6d36..0a25b4b40c 100644 --- a/board/siemens/pxm2/board.c +++ b/board/siemens/pxm2/board.c @@ -58,19 +58,14 @@ struct ddr_data pxm2_ddr3_data = { .datawdsratio0 = 0, .datafwsratio0 = 0x8020080, .datawrsratio0 = 0x4010040, - .datauserank0delay = 1, - .datadldiff0 = PHY_DLL_LOCK_DIFF, }; struct cmd_control pxm2_ddr3_cmd_ctrl_data = { .cmd0csratio = 0x80, - .cmd0dldiff = 0, .cmd0iclkout = 0, .cmd1csratio = 0x80, - .cmd1dldiff = 0, .cmd1iclkout = 0, .cmd2csratio = 0x80, - .cmd2dldiff = 0, .cmd2iclkout = 0, }; diff --git a/board/siemens/rut/board.c b/board/siemens/rut/board.c index 0cf17ef5b6..77592dbba8 100644 --- a/board/siemens/rut/board.c +++ b/board/siemens/rut/board.c @@ -63,19 +63,14 @@ struct ddr_data rut_ddr3_data = { .datawdsratio0 = 0x85, .datafwsratio0 = 0x100, .datawrsratio0 = 0xc1, - .datauserank0delay = 1, - .datadldiff0 = PHY_DLL_LOCK_DIFF, }; struct cmd_control rut_ddr3_cmd_ctrl_data = { .cmd0csratio = 0x40, - .cmd0dldiff = 0, .cmd0iclkout = 1, .cmd1csratio = 0x40, - .cmd1dldiff = 0, .cmd1iclkout = 1, .cmd2csratio = 0x40, - .cmd2dldiff = 0, .cmd2iclkout = 1, }; |
