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| author | Marek Vasut <marex@denx.de> | 2013-01-11 03:19:02 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-01-21 12:05:19 +0100 |
| commit | 14e26bcfa700b507a805eb30c72e3b6a1ba19d7f (patch) | |
| tree | 07b2611205bc7414a74b4cb0c7650a7c4853e13a /arch/arm/include | |
| parent | 59b6defa2b2db1b51f772e8ef6af2617463c8f80 (diff) | |
| download | blackbird-obmc-uboot-14e26bcfa700b507a805eb30c72e3b6a1ba19d7f.tar.gz blackbird-obmc-uboot-14e26bcfa700b507a805eb30c72e3b6a1ba19d7f.zip | |
mxs: ssp: Pull out the SSP bus to regs conversion
Create function which converts SSP bus number to SSP register pointer.
This functionality is reimplemented multiple times in the code, thus
make one common implementation. Moreover, make it a switch(), since the
SSP ports are not mapped in such nice linear fashion on MX23, therefore
having it a switch will simplify things there.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andy Fleming <afleming@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/regs-ssp.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/regs-ssp.h b/arch/arm/include/asm/arch-mxs/regs-ssp.h index cf52a28c3b..4a75029221 100644 --- a/arch/arm/include/asm/arch-mxs/regs-ssp.h +++ b/arch/arm/include/asm/arch-mxs/regs-ssp.h @@ -50,6 +50,22 @@ struct mxs_ssp_regs { mxs_reg_32(hw_ssp_debug) mxs_reg_32(hw_ssp_version) }; + +static inline struct mxs_ssp_regs *mxs_ssp_regs_by_bus(unsigned int port) +{ + switch (port) { + case 0: + return (struct mxs_ssp_regs *)MXS_SSP0_BASE; + case 1: + return (struct mxs_ssp_regs *)MXS_SSP1_BASE; + case 2: + return (struct mxs_ssp_regs *)MXS_SSP2_BASE; + case 3: + return (struct mxs_ssp_regs *)MXS_SSP3_BASE; + default: + return NULL; + } +} #endif #define SSP_CTRL0_SFTRST (1 << 31) |
