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-rw-r--r--arch/arm/mach-u300/spi.c102
1 files changed, 0 insertions, 102 deletions
diff --git a/arch/arm/mach-u300/spi.c b/arch/arm/mach-u300/spi.c
deleted file mode 100644
index 9106982..0000000
--- a/arch/arm/mach-u300/spi.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * arch/arm/mach-u300/spi.c
- *
- * Copyright (C) 2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- *
- * Author: Linus Walleij <linus.walleij@stericsson.com>
- */
-#include <linux/device.h>
-#include <linux/amba/bus.h>
-#include <linux/spi/spi.h>
-#include <linux/amba/pl022.h>
-#include <linux/platform_data/dma-coh901318.h>
-#include <linux/err.h>
-
-/*
- * The following is for the actual devices on the SSP/SPI bus
- */
-#ifdef CONFIG_MACH_U300_SPIDUMMY
-static void select_dummy_chip(u32 chipselect)
-{
- pr_debug("CORE: %s called with CS=0x%x (%s)\n",
- __func__,
- chipselect,
- chipselect ? "unselect chip" : "select chip");
- /*
- * Here you would write the chip select value to the GPIO pins if
- * this was a real chip (but this is a loopback dummy).
- */
-}
-
-struct pl022_config_chip dummy_chip_info = {
- /* available POLLING_TRANSFER, INTERRUPT_TRANSFER, DMA_TRANSFER */
- .com_mode = DMA_TRANSFER,
- .iface = SSP_INTERFACE_MOTOROLA_SPI,
- /* We can only act as master but SSP_SLAVE is possible in theory */
- .hierarchy = SSP_MASTER,
- /* 0 = drive TX even as slave, 1 = do not drive TX as slave */
- .slave_tx_disable = 0,
- .rx_lev_trig = SSP_RX_4_OR_MORE_ELEM,
- .tx_lev_trig = SSP_TX_4_OR_MORE_EMPTY_LOC,
- .ctrl_len = SSP_BITS_12,
- .wait_state = SSP_MWIRE_WAIT_ZERO,
- .duplex = SSP_MICROWIRE_CHANNEL_FULL_DUPLEX,
- /*
- * This is where you insert a call to a function to enable CS
- * (usually GPIO) for a certain chip.
- */
- .cs_control = select_dummy_chip,
-};
-#endif
-
-static struct spi_board_info u300_spi_devices[] = {
-#ifdef CONFIG_MACH_U300_SPIDUMMY
- {
- /* A dummy chip used for loopback tests */
- .modalias = "spi-dummy",
- /* Really dummy, pass in additional chip config here */
- .platform_data = NULL,
- /* This defines how the controller shall handle the device */
- .controller_data = &dummy_chip_info,
- /* .irq - no external IRQ routed from this device */
- .max_speed_hz = 1000000,
- .bus_num = 0, /* Only one bus on this chip */
- .chip_select = 0,
- /* Means SPI_CS_HIGH, change if e.g low CS */
- .mode = SPI_MODE_1 | SPI_LOOP,
- },
-#endif
-};
-
-static struct pl022_ssp_controller ssp_platform_data = {
- /* If you have several SPI buses this varies, we have only bus 0 */
- .bus_id = 0,
- /*
- * On the APP CPU GPIO 4, 5 and 6 are connected as generic
- * chip selects for SPI. (Same on U330, U335 and U365.)
- * TODO: make sure the GPIO driver can select these properly
- * and do padmuxing accordingly too.
- */
- .num_chipselect = 3,
-#ifdef CONFIG_COH901318
- .enable_dma = 1,
- .dma_filter = coh901318_filter_id,
- .dma_rx_param = (void *) U300_DMA_SPI_RX,
- .dma_tx_param = (void *) U300_DMA_SPI_TX,
-#else
- .enable_dma = 0,
-#endif
-};
-
-
-void __init u300_spi_init(struct amba_device *adev)
-{
- adev->dev.platform_data = &ssp_platform_data;
-}
-
-void __init u300_spi_register_board_devices(void)
-{
- /* Register any SPI devices */
- spi_register_board_info(u300_spi_devices, ARRAY_SIZE(u300_spi_devices));
-}
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