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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2014-08-20 15:08:58 +0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-09-09 15:35:00 +0200 |
| commit | 07ee927d2c319b477232affad7d3b6119ac079c9 (patch) | |
| tree | 937f9fb2cbf4f48d55e47cca4aead70f40daeaa5 | |
| parent | 08155289a453acee836179553131e9d51ab02a52 (diff) | |
| download | u-boot-imx-07ee927d2c319b477232affad7d3b6119ac079c9.zip u-boot-imx-07ee927d2c319b477232affad7d3b6119ac079c9.tar.gz u-boot-imx-07ee927d2c319b477232affad7d3b6119ac079c9.tar.bz2 | |
arm: mx6: ddr: fix cs0_end calculation
Current way of calculation CS0_END field for MMDCx_MDASP register
is problematic because in most cases the user is forced to define
cs_density in an unnatural way: as value - 2, instead of value.
This breaks the abstraction provided by struct mx6_ddr_sysinfo
because the user is forced to be aware of the way the calculation
is performed.
Refactor the calculation.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/ddr.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/mx6/ddr.c b/arch/arm/cpu/armv7/mx6/ddr.c index d22f232..7b5c1e4 100644 --- a/arch/arm/cpu/armv7/mx6/ddr.c +++ b/arch/arm/cpu/armv7/mx6/ddr.c @@ -309,9 +309,7 @@ void mx6_dram_cfg(const struct mx6_ddr_sysinfo *sysinfo, twtr = ROUND(MAX(4 * clkper, 7500) / clkper, 1) - 1; trcd = trp; trtp = twtr; - cs0_end = (4 * sysinfo->cs_density <= 120) ? - 4 * sysinfo->cs_density + 7 : - 127; + cs0_end = 4 * sysinfo->cs_density - 1; debug("density:%d Gb (%d Gb per chip)\n", sysinfo->cs_density, ddr3_cfg->density); |