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| author | Valentin Longchamp <valentin.longchamp@keymile.com> | 2012-06-01 01:31:03 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-07-07 14:07:32 +0200 |
| commit | 24934fea0c6248ac33ccf398dd1a86e0b9904eeb (patch) | |
| tree | 2f908e6dd0b3b46119a83d3760cae6d136681ecc /drivers | |
| parent | ac486e3ba16c37514d135c359f61ed6e32a2921d (diff) | |
| download | u-boot-imx-24934fea0c6248ac33ccf398dd1a86e0b9904eeb.zip u-boot-imx-24934fea0c6248ac33ccf398dd1a86e0b9904eeb.tar.gz u-boot-imx-24934fea0c6248ac33ccf398dd1a86e0b9904eeb.tar.bz2 | |
kw_spi: add weak functions board_spi_claim/release_bus
This allows a final, board specific, step in the claim/relase_bus
function for the SPI controller, which may be needed for some hardware
designs.
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Holger Brunck <holger.brunck@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/kirkwood_spi.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index db4bb0a..f4523a3 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -87,6 +87,11 @@ void spi_free_slave(struct spi_slave *slave) u32 spi_mpp_backup[4]; #endif +__attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave) +{ + return 0; +} + int spi_claim_bus(struct spi_slave *slave) { #if defined(CONFIG_SYS_KW_SPI_MPP) @@ -118,7 +123,11 @@ int spi_claim_bus(struct spi_slave *slave) #endif - return 0; + return board_spi_claim_bus(slave); +} + +__attribute__((weak)) void board_spi_release_bus(struct spi_slave *slave) +{ } void spi_release_bus(struct spi_slave *slave) @@ -126,6 +135,8 @@ void spi_release_bus(struct spi_slave *slave) #if defined(CONFIG_SYS_KW_SPI_MPP) kirkwood_mpp_conf(spi_mpp_backup, NULL); #endif + + board_spi_release_bus(slave); } #ifndef CONFIG_SPI_CS_IS_VALID |