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| author | Helmut Raiger <helmut.raiger@hale.at> | 2011-09-29 05:45:03 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-10-27 21:56:30 +0200 |
| commit | 47c5455a489c8e558ecb002a3a97a030ce490f9e (patch) | |
| tree | a0ecca9a95071e6a963ed4d4abedfa5bf8e7745b /arch/arm/cpu/arm1136 | |
| parent | 43883dc3e50e224ea68031bf34b766544311bf60 (diff) | |
| download | u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.zip u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.tar.gz u-boot-imx-47c5455a489c8e558ecb002a3a97a030ce490f9e.tar.bz2 | |
mx31: provide readable WEIM CS accessor
setup_weimcs() and some macros are added to support the setup
for i.MX31 WEIM chip selects. As a compromise between verbosity
and readability an ASCII-art'ish bit comment is used instead of
bitfields.
All i.MX31 boards have been patched to use this approach using a
helper program to verify the changes.
Signed-off-by: Helmut Raiger <helmut.raiger@hale.at>
Acked-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu/arm1136')
| -rw-r--r-- | arch/arm/cpu/arm1136/mx31/generic.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm1136/mx31/generic.c b/arch/arm/cpu/arm1136/mx31/generic.c index 5524b23..78df7b9 100644 --- a/arch/arm/cpu/arm1136/mx31/generic.c +++ b/arch/arm/cpu/arm1136/mx31/generic.c @@ -25,6 +25,7 @@ #include <asm/arch/imx-regs.h> #include <asm/arch/clock.h> #include <asm/io.h> +#include <asm/arch/sys_proto.h> static u32 mx31_decode_pll(u32 reg, u32 infreq) { @@ -140,6 +141,16 @@ void mx31_set_pad(enum iomux_pins pin, u32 config) } +void mxc_setup_weimcs(int cs, const struct mxc_weimcs *weimcs) +{ + struct mx31_weim *weim = (struct mx31_weim *) WEIM_BASE; + struct mx31_weim_cscr *cscr = &weim->cscr[cs]; + + writel(weimcs->upper, &cscr->upper); + writel(weimcs->lower, &cscr->lower); + writel(weimcs->additional, &cscr->additional); +} + struct mx3_cpu_type mx31_cpu_type[] = { { .srev = 0x00, .v = 0x10 }, { .srev = 0x10, .v = 0x11 }, |