Zap oc_tiny_spi driver since the boards used this driver is no longer been active.
Signed-off-by: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com Cc: Thomas Chou thomas@wytron.com.tw --- drivers/spi/Makefile | 1 - drivers/spi/oc_tiny_spi.c | 245 ---------------------------------------------- 2 files changed, 246 deletions(-) delete mode 100644 drivers/spi/oc_tiny_spi.c
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 1e3611d..507c315 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -35,7 +35,6 @@ obj-$(CONFIG_MPC52XX_SPI) += mpc52xx_spi.o obj-$(CONFIG_MPC8XXX_SPI) += mpc8xxx_spi.o obj-$(CONFIG_MXC_SPI) += mxc_spi.o obj-$(CONFIG_MXS_SPI) += mxs_spi.o -obj-$(CONFIG_OC_TINY_SPI) += oc_tiny_spi.o obj-$(CONFIG_OMAP3_SPI) += omap3_spi.o obj-$(CONFIG_SANDBOX_SPI) += sandbox_spi.o obj-$(CONFIG_SH_SPI) += sh_spi.o diff --git a/drivers/spi/oc_tiny_spi.c b/drivers/spi/oc_tiny_spi.c deleted file mode 100644 index 4de5d00..0000000 --- a/drivers/spi/oc_tiny_spi.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * Opencore tiny_spi driver - * - * http://opencores.org/project,tiny_spi - * - * based on bfin_spi.c - * Copyright (c) 2005-2008 Analog Devices Inc. - * Copyright (C) 2010 Thomas Chou thomas@wytron.com.tw - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <asm/io.h> -#include <malloc.h> -#include <spi.h> -#include <asm/gpio.h> - -#define TINY_SPI_STATUS_TXE 0x1 -#define TINY_SPI_STATUS_TXR 0x2 - -struct tiny_spi_regs { - unsigned rxdata; /* Rx data reg */ - unsigned txdata; /* Tx data reg */ - unsigned status; /* Status reg */ - unsigned control; /* Control reg */ - unsigned baud; /* Baud reg */ -}; - -struct tiny_spi_host { - uint base; - uint freq; - uint baudwidth; -}; -static const struct tiny_spi_host tiny_spi_host_list[] = - CONFIG_SYS_TINY_SPI_LIST; - -struct tiny_spi_slave { - struct spi_slave slave; - const struct tiny_spi_host *host; - uint mode; - uint baud; - uint flg; -}; -#define to_tiny_spi_slave(s) container_of(s, struct tiny_spi_slave, slave) - -int spi_cs_is_valid(unsigned int bus, unsigned int cs) -{ - return bus < ARRAY_SIZE(tiny_spi_host_list) && gpio_is_valid(cs); -} - -void spi_cs_activate(struct spi_slave *slave) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - unsigned int cs = slave->cs; - - gpio_set_value(cs, tiny_spi->flg); - debug("%s: SPI_CS_GPIO:%x\n", __func__, gpio_get_value(cs)); -} - -void spi_cs_deactivate(struct spi_slave *slave) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - unsigned int cs = slave->cs; - - gpio_set_value(cs, !tiny_spi->flg); - debug("%s: SPI_CS_GPIO:%x\n", __func__, gpio_get_value(cs)); -} - -void spi_set_speed(struct spi_slave *slave, uint hz) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - const struct tiny_spi_host *host = tiny_spi->host; - - tiny_spi->baud = min(DIV_ROUND_UP(host->freq, hz * 2), - (1 << host->baudwidth)) - 1; - debug("%s: speed %u actual %u\n", __func__, hz, - host->freq / ((tiny_spi->baud + 1) * 2)); -} - -void spi_init(void) -{ -} - -struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, - unsigned int hz, unsigned int mode) -{ - struct tiny_spi_slave *tiny_spi; - - if (!spi_cs_is_valid(bus, cs) || gpio_request(cs, "tiny_spi")) - return NULL; - - tiny_spi = spi_alloc_slave(struct tiny_spi_slave, bus, cs); - if (!tiny_spi) - return NULL; - - tiny_spi->host = &tiny_spi_host_list[bus]; - tiny_spi->mode = mode & (SPI_CPOL | SPI_CPHA); - tiny_spi->flg = mode & SPI_CS_HIGH ? 1 : 0; - spi_set_speed(&tiny_spi->slave, hz); - - debug("%s: bus:%i cs:%i base:%lx\n", __func__, - bus, cs, tiny_spi->host->base); - return &tiny_spi->slave; -} - -void spi_free_slave(struct spi_slave *slave) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - - gpio_free(slave->cs); - free(tiny_spi); -} - -int spi_claim_bus(struct spi_slave *slave) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - struct tiny_spi_regs *regs = (void *)tiny_spi->host->base; - - debug("%s: bus:%i cs:%i\n", __func__, slave->bus, slave->cs); - gpio_direction_output(slave->cs, !tiny_spi->flg); - writel(tiny_spi->mode, ®s->control); - writel(tiny_spi->baud, ®s->baud); - return 0; -} - -void spi_release_bus(struct spi_slave *slave) -{ - debug("%s: bus:%i cs:%i\n", __func__, slave->bus, slave->cs); -} - -#ifndef CONFIG_TINY_SPI_IDLE_VAL -# define CONFIG_TINY_SPI_IDLE_VAL 0xff -#endif - -int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout, - void *din, unsigned long flags) -{ - struct tiny_spi_slave *tiny_spi = to_tiny_spi_slave(slave); - struct tiny_spi_regs *regs = (void *)tiny_spi->host->base; - const u8 *txp = dout; - u8 *rxp = din; - uint bytes = bitlen / 8; - uint i; - - debug("%s: bus:%i cs:%i bitlen:%i bytes:%i flags:%lx\n", __func__, - slave->bus, slave->cs, bitlen, bytes, flags); - if (bitlen == 0) - goto done; - - /* assume to do 8 bits transfers */ - if (bitlen % 8) { - flags |= SPI_XFER_END; - goto done; - } - - if (flags & SPI_XFER_BEGIN) - spi_cs_activate(slave); - - /* we need to tighten the transfer loop */ - if (txp && rxp) { - writeb(*txp++, ®s->txdata); - if (bytes > 1) { - writeb(*txp++, ®s->txdata); - for (i = 2; i < bytes; i++) { - u8 rx, tx = *txp++; - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - rx = readb(®s->txdata); - writeb(tx, ®s->txdata); - *rxp++ = rx; - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - *rxp++ = readb(®s->txdata); - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXE)) - ; - *rxp++ = readb(®s->rxdata); - } else if (rxp) { - writeb(CONFIG_TINY_SPI_IDLE_VAL, ®s->txdata); - if (bytes > 1) { - writeb(CONFIG_TINY_SPI_IDLE_VAL, - ®s->txdata); - for (i = 2; i < bytes; i++) { - u8 rx; - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - rx = readb(®s->txdata); - writeb(CONFIG_TINY_SPI_IDLE_VAL, - ®s->txdata); - *rxp++ = rx; - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - *rxp++ = readb(®s->txdata); - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXE)) - ; - *rxp++ = readb(®s->rxdata); - } else if (txp) { - writeb(*txp++, ®s->txdata); - if (bytes > 1) { - writeb(*txp++, ®s->txdata); - for (i = 2; i < bytes; i++) { - u8 tx = *txp++; - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - writeb(tx, ®s->txdata); - } - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXE)) - ; - } else { - writeb(CONFIG_TINY_SPI_IDLE_VAL, ®s->txdata); - if (bytes > 1) { - writeb(CONFIG_TINY_SPI_IDLE_VAL, - ®s->txdata); - for (i = 2; i < bytes; i++) { - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXR)) - ; - writeb(CONFIG_TINY_SPI_IDLE_VAL, - ®s->txdata); - } - } - while (!(readb(®s->status) & - TINY_SPI_STATUS_TXE)) - ; - } - - done: - if (flags & SPI_XFER_END) - spi_cs_deactivate(slave); - - return 0; -}