diff options
| author | Allen Martin <amartin@nvidia.com> | 2013-03-16 18:58:02 +0000 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2013-03-25 09:56:05 -0700 |
| commit | 9000652da0893af8a07f81622b3ef8de6c8725bb (patch) | |
| tree | 00835e8986dfd8b85470042bf74361cf51b6115a /drivers/spi | |
| parent | b6379e15a70cc2e22486e5962927d9de374d877b (diff) | |
tegra: remove support for UART SPI switch
This feature was only used for tegra20 seaboard that had a pinmux
conflict on the SPI pins. These boards were never manufactured, so
remove this support to clean up SPI driver.
Signed-off-by: Allen Martin <amartin@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/tegra_spi.c | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/drivers/spi/tegra_spi.c b/drivers/spi/tegra_spi.c index ce19095af0..2662923ff1 100644 --- a/drivers/spi/tegra_spi.c +++ b/drivers/spi/tegra_spi.c @@ -28,7 +28,6 @@ #include <asm/gpio.h> #include <asm/arch/clock.h> #include <asm/arch/pinmux.h> -#include <asm/arch/uart-spi-switch.h> #include <asm/arch-tegra/clk_rst.h> #include <asm/arch-tegra/tegra_spi.h> #include <spi.h> @@ -36,12 +35,6 @@ DECLARE_GLOBAL_DATA_PTR; -#if defined(CONFIG_SPI_CORRUPTS_UART) - #define corrupt_delay() udelay(CONFIG_SPI_CORRUPTS_UART_DLY); -#else - #define corrupt_delay() -#endif - struct tegra_spi_slave { struct spi_slave slave; struct spi_tegra *regs; @@ -175,16 +168,8 @@ int spi_claim_bus(struct spi_slave *slave) */ pinmux_set_func(PINGRP_GMD, PMUX_FUNC_SFLASH); pinmux_tristate_disable(PINGRP_LSPI); + pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH); -#ifndef CONFIG_SPI_UART_SWITCH - /* - * NOTE: - * Only set PinMux bits 3:2 to SPI here on boards that don't have the - * SPI UART switch or subsequent UART data won't go out! See - * spi_uart_switch(). - */ - /* TODO: pinmux_set_func(PINGRP_GMC, PMUX_FUNC_SFLASH); */ -#endif return 0; } @@ -202,24 +187,16 @@ void spi_cs_activate(struct spi_slave *slave) { struct tegra_spi_slave *spi = to_tegra_spi(slave); - pinmux_select_spi(); - /* CS is negated on Tegra, so drive a 1 to get a 0 */ setbits_le32(&spi->regs->command, SPI_CMD_CS_VAL); - - corrupt_delay(); /* Let UART settle */ } void spi_cs_deactivate(struct spi_slave *slave) { struct tegra_spi_slave *spi = to_tegra_spi(slave); - pinmux_select_uart(); - /* CS is negated on Tegra, so drive a 0 to get a 1 */ clrbits_le32(&spi->regs->command, SPI_CMD_CS_VAL); - - corrupt_delay(); /* Let SPI settle */ } int spi_xfer(struct spi_slave *slave, unsigned int bitlen, |