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Diffstat (limited to 'drivers/spi/fdt_spi.c')
-rw-r--r--drivers/spi/fdt_spi.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/drivers/spi/fdt_spi.c b/drivers/spi/fdt_spi.c
deleted file mode 100644
index 58f139a..0000000
--- a/drivers/spi/fdt_spi.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * Common fdt based SPI driver front end
- *
- * Copyright (c) 2013 NVIDIA Corporation
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <malloc.h>
-#include <asm/io.h>
-#include <asm/gpio.h>
-#include <asm/arch/clock.h>
-#include <asm/arch-tegra/clk_rst.h>
-#include <asm/arch-tegra20/tegra20_sflash.h>
-#include <asm/arch-tegra20/tegra20_slink.h>
-#include <asm/arch-tegra114/tegra114_spi.h>
-#include <spi.h>
-#include <fdtdec.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-struct fdt_spi_driver {
- int compat;
- int max_ctrls;
- int (*init)(int *node_list, int count);
- int (*claim_bus)(struct spi_slave *slave);
- int (*release_bus)(struct spi_slave *slave);
- int (*cs_is_valid)(unsigned int bus, unsigned int cs);
- struct spi_slave *(*setup_slave)(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode);
- void (*free_slave)(struct spi_slave *slave);
- void (*cs_activate)(struct spi_slave *slave);
- void (*cs_deactivate)(struct spi_slave *slave);
- int (*xfer)(struct spi_slave *slave, unsigned int bitlen,
- const void *data_out, void *data_in, unsigned long flags);
-};
-
-static struct fdt_spi_driver fdt_spi_drivers[] = {
-#ifdef CONFIG_TEGRA20_SFLASH
- {
- .compat = COMPAT_NVIDIA_TEGRA20_SFLASH,
- .max_ctrls = 1,
- .init = tegra20_spi_init,
- .claim_bus = tegra20_spi_claim_bus,
- .cs_is_valid = tegra20_spi_cs_is_valid,
- .setup_slave = tegra20_spi_setup_slave,
- .free_slave = tegra20_spi_free_slave,
- .cs_activate = tegra20_spi_cs_activate,
- .cs_deactivate = tegra20_spi_cs_deactivate,
- .xfer = tegra20_spi_xfer,
- },
-#endif
-#ifdef CONFIG_TEGRA20_SLINK
- {
- .compat = COMPAT_NVIDIA_TEGRA20_SLINK,
- .max_ctrls = CONFIG_TEGRA_SLINK_CTRLS,
- .init = tegra30_spi_init,
- .claim_bus = tegra30_spi_claim_bus,
- .cs_is_valid = tegra30_spi_cs_is_valid,
- .setup_slave = tegra30_spi_setup_slave,
- .free_slave = tegra30_spi_free_slave,
- .cs_activate = tegra30_spi_cs_activate,
- .cs_deactivate = tegra30_spi_cs_deactivate,
- .xfer = tegra30_spi_xfer,
- },
-#endif
-#ifdef CONFIG_TEGRA114_SPI
- {
- .compat = COMPAT_NVIDIA_TEGRA114_SPI,
- .max_ctrls = CONFIG_TEGRA114_SPI_CTRLS,
- .init = tegra114_spi_init,
- .claim_bus = tegra114_spi_claim_bus,
- .cs_is_valid = tegra114_spi_cs_is_valid,
- .setup_slave = tegra114_spi_setup_slave,
- .free_slave = tegra114_spi_free_slave,
- .cs_activate = tegra114_spi_cs_activate,
- .cs_deactivate = tegra114_spi_cs_deactivate,
- .xfer = tegra114_spi_xfer,
- },
-#endif
-};
-
-static struct fdt_spi_driver *driver;
-
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
- if (!driver)
- return 0;
- else if (!driver->cs_is_valid)
- return 1;
- else
- return driver->cs_is_valid(bus, cs);
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
-{
- if (!driver || !driver->setup_slave)
- return NULL;
-
- return driver->setup_slave(bus, cs, max_hz, mode);
-}
-
-void spi_free_slave(struct spi_slave *slave)
-{
- if (driver && driver->free_slave)
- return driver->free_slave(slave);
-}
-
-static int spi_init_driver(struct fdt_spi_driver *driver)
-{
- int count;
- int node_list[driver->max_ctrls];
-
- count = fdtdec_find_aliases_for_id(gd->fdt_blob, "spi",
- driver->compat,
- node_list,
- driver->max_ctrls);
- return driver->init(node_list, count);
-}
-
-void spi_init(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(fdt_spi_drivers); i++) {
- driver = &fdt_spi_drivers[i];
- if (!spi_init_driver(driver))
- break;
- }
- if (i == ARRAY_SIZE(fdt_spi_drivers))
- driver = NULL;
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
- if (!driver)
- return 1;
- if (!driver->claim_bus)
- return 0;
-
- return driver->claim_bus(slave);
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
- if (driver && driver->release_bus)
- driver->release_bus(slave);
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
- if (driver && driver->cs_activate)
- driver->cs_activate(slave);
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
- if (driver && driver->cs_deactivate)
- driver->cs_deactivate(slave);
-}
-
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
- const void *data_out, void *data_in, unsigned long flags)
-{
- if (!driver || !driver->xfer)
- return -1;
-
- return driver->xfer(slave, bitlen, data_out, data_in, flags);
-}