diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/fsl_law.c | 70 | ||||
| -rw-r--r-- | drivers/mtd/nand/Makefile | 2 | ||||
| -rw-r--r-- | drivers/mtd/nand/fsl_upm.c | 201 | ||||
| -rw-r--r-- | drivers/mtd/onenand/Makefile | 2 | ||||
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 20 | ||||
| -rw-r--r-- | drivers/mtd/onenand/onenand_uboot.c | 41 | ||||
| -rw-r--r-- | drivers/pcmcia/marubun_pcmcia.c | 6 | ||||
| -rw-r--r-- | drivers/serial/serial_sh.c | 36 | ||||
| -rw-r--r-- | drivers/spi/Makefile | 46 | ||||
| -rw-r--r-- | drivers/spi/mpc8xxx_spi.c | 143 |
11 files changed, 538 insertions, 30 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 78cec21fba3..67521720e74 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -28,6 +28,7 @@ LIB := $(obj)libmisc.a COBJS-y += ali512x.o COBJS-y += ns87308.o COBJS-y += status_led.o +COBJS-$(CONFIG_FSL_LAW) += fsl_law.o COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/misc/fsl_law.c b/drivers/misc/fsl_law.c new file mode 100644 index 00000000000..8bdf5a7f412 --- /dev/null +++ b/drivers/misc/fsl_law.c @@ -0,0 +1,70 @@ +/* + * Copyright 2008 Freescale Semiconductor, Inc. + * + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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 <asm/fsl_law.h> +#include <asm/io.h> + +#define LAWAR_EN 0x80000000 + +void set_law(u8 idx, phys_addr_t addr, enum law_size sz, enum law_trgt_if id) +{ + volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08); + volatile u32 *lawbar = base + 8 * idx; + volatile u32 *lawar = base + 8 * idx + 2; + + out_be32(lawbar, addr >> 12); + out_be32(lawar, LAWAR_EN | ((u32)id << 20) | (u32)sz); + + return ; +} + +void disable_law(u8 idx) +{ + volatile u32 *base = (volatile u32 *)(CFG_IMMR + 0xc08); + volatile u32 *lawbar = base + 8 * idx; + volatile u32 *lawar = base + 8 * idx + 2; + + out_be32(lawar, 0); + out_be32(lawbar, 0); + + return; +} + +void init_laws(void) +{ + int i; + u8 law_idx = 0; + + for (i = 0; i < num_law_entries; i++) { + if (law_table[i].index != -1) + law_idx = law_table[i].index; + + set_law(law_idx++, law_table[i].addr, + law_table[i].size, law_table[i].trgt_id); + } + + return ; +} diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 42864f98f4c..244fa09b207 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -32,6 +32,8 @@ COBJS-y += nand_ecc.o COBJS-y += nand_bbt.o COBJS-y += nand_util.o +COBJS-y += fsl_upm.o + COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c new file mode 100644 index 00000000000..5cc410a5e2f --- /dev/null +++ b/drivers/mtd/nand/fsl_upm.c @@ -0,0 +1,201 @@ +/* + * FSL UPM NAND driver + * + * Copyright (C) 2007 MontaVista Software, Inc. + * Anton Vorontsov <avorontsov@ru.mvista.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <config.h> + +#if defined(CONFIG_CMD_NAND) && defined(CONFIG_NAND_FSL_UPM) +#include <common.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/fsl_upm.h> +#include <nand.h> + +#define FSL_UPM_MxMR_OP_NO (0 << 28) /* normal operation */ +#define FSL_UPM_MxMR_OP_WA (1 << 28) /* write array */ +#define FSL_UPM_MxMR_OP_RA (2 << 28) /* read array */ +#define FSL_UPM_MxMR_OP_RP (3 << 28) /* run pattern */ + +static void fsl_upm_start_pattern(struct fsl_upm *upm, u32 pat_offset) +{ + out_be32(upm->mxmr, FSL_UPM_MxMR_OP_RP | pat_offset); +} + +static void fsl_upm_end_pattern(struct fsl_upm *upm) +{ + out_be32(upm->mxmr, FSL_UPM_MxMR_OP_NO); + while (in_be32(upm->mxmr) != FSL_UPM_MxMR_OP_NO) + eieio(); +} + +static void fsl_upm_run_pattern(struct fsl_upm *upm, int width, u32 cmd) +{ + out_be32(upm->mar, cmd << (32 - width * 8)); + out_8(upm->io_addr, 0x0); +} + +static void fsl_upm_setup(struct fsl_upm *upm) +{ + int i; + + /* write upm array */ + out_be32(upm->mxmr, FSL_UPM_MxMR_OP_WA); + + for (i = 0; i < 64; i++) { + out_be32(upm->mdr, upm->array[i]); + out_8(upm->io_addr, 0x0); + } + + /* normal operation */ + out_be32(upm->mxmr, FSL_UPM_MxMR_OP_NO); + while (in_be32(upm->mxmr) != FSL_UPM_MxMR_OP_NO) + eieio(); +} + +static void fun_cmdfunc(struct mtd_info *mtd, unsigned command, int column, + int page_addr) +{ + struct nand_chip *chip = mtd->priv; + struct fsl_upm_nand *fun = chip->priv; + + fsl_upm_start_pattern(&fun->upm, fun->upm_cmd_offset); + + if (command == NAND_CMD_SEQIN) { + int readcmd; + + if (column >= mtd->oobblock) { + /* OOB area */ + column -= mtd->oobblock; + readcmd = NAND_CMD_READOOB; + } else if (column < 256) { + /* First 256 bytes --> READ0 */ + readcmd = NAND_CMD_READ0; + } else { + column -= 256; + readcmd = NAND_CMD_READ1; + } + fsl_upm_run_pattern(&fun->upm, fun->width, readcmd); + } + + fsl_upm_run_pattern(&fun->upm, fun->width, command); + + fsl_upm_end_pattern(&fun->upm); + + fsl_upm_start_pattern(&fun->upm, fun->upm_addr_offset); + + if (column != -1) + fsl_upm_run_pattern(&fun->upm, fun->width, column); + + if (page_addr != -1) { + fsl_upm_run_pattern(&fun->upm, fun->width, page_addr); + fsl_upm_run_pattern(&fun->upm, fun->width, + (page_addr >> 8) & 0xFF); + if (chip->chipsize > (32 << 20)) { + fsl_upm_run_pattern(&fun->upm, fun->width, + (page_addr >> 16) & 0x0f); + } + } + + fsl_upm_end_pattern(&fun->upm); + + if (fun->wait_pattern) { + /* + * Some boards/chips needs this. At least on MPC8360E-RDK we + * need it. Probably weird chip, because I don't see any need + * for this on MPC8555E + Samsung K9F1G08U0A. Usually here are + * 0-2 unexpected busy states per block read. + */ + while (!fun->dev_ready()) + debug("unexpected busy state\n"); + } +} + +static void nand_write_byte(struct mtd_info *mtd, u_char byte) +{ + struct nand_chip *chip = mtd->priv; + + out_8(chip->IO_ADDR_W, byte); +} + +static u8 nand_read_byte(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + + return in_8(chip->IO_ADDR_R); +} + +static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) +{ + int i; + struct nand_chip *chip = mtd->priv; + + for (i = 0; i < len; i++) + out_8(chip->IO_ADDR_W, buf[i]); +} + +static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) +{ + int i; + struct nand_chip *chip = mtd->priv; + + for (i = 0; i < len; i++) + buf[i] = in_8(chip->IO_ADDR_R); +} + +static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) +{ + int i; + struct nand_chip *chip = mtd->priv; + + for (i = 0; i < len; i++) { + if (buf[i] != in_8(chip->IO_ADDR_R)) + return -EFAULT; + } + + return 0; +} + +static void nand_hwcontrol(struct mtd_info *mtd, int cmd) +{ +} + +static int nand_dev_ready(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + struct fsl_upm_nand *fun = chip->priv; + + return fun->dev_ready(); +} + +int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun) +{ + /* yet only 8 bit accessors implemented */ + if (fun->width != 1) + return -ENOSYS; + + fsl_upm_setup(&fun->upm); + + chip->priv = fun; + chip->chip_delay = fun->chip_delay; + chip->eccmode = NAND_ECC_SOFT; + chip->cmdfunc = fun_cmdfunc; + chip->hwcontrol = nand_hwcontrol; + chip->read_byte = nand_read_byte; + chip->read_buf = nand_read_buf; + chip->write_byte = nand_write_byte; + chip->write_buf = nand_write_buf; + chip->verify_buf = nand_verify_buf; + chip->dev_ready = nand_dev_ready; + + return 0; +} +#endif /* CONFIG_CMD_NAND */ diff --git a/drivers/mtd/onenand/Makefile b/drivers/mtd/onenand/Makefile index 20494133270..92074b25528 100644 --- a/drivers/mtd/onenand/Makefile +++ b/drivers/mtd/onenand/Makefile @@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk LIB := $(obj)libonenand.a -COBJS := onenand_base.o onenand_bbt.o +COBJS := onenand_uboot.o onenand_base.o onenand_bbt.o SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 7983a4a0d82..d4003a20f20 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1271,24 +1271,4 @@ void onenand_release(struct mtd_info *mtd) { } -/* - * OneNAND initialization at U-Boot - */ -struct mtd_info onenand_mtd; -struct onenand_chip onenand_chip; - -void onenand_init(void) -{ - memset(&onenand_mtd, 0, sizeof(struct mtd_info)); - memset(&onenand_chip, 0, sizeof(struct onenand_chip)); - - onenand_chip.base = (void *)CFG_ONENAND_BASE; - onenand_mtd.priv = &onenand_chip; - - onenand_scan(&onenand_mtd, 1); - - puts("OneNAND: "); - print_size(onenand_mtd.size, "\n"); -} - #endif /* CONFIG_CMD_ONENAND */ diff --git a/drivers/mtd/onenand/onenand_uboot.c b/drivers/mtd/onenand/onenand_uboot.c new file mode 100644 index 00000000000..bd7466ac9d9 --- /dev/null +++ b/drivers/mtd/onenand/onenand_uboot.c @@ -0,0 +1,41 @@ +/* + * drivers/mtd/onenand/onenand_uboot.c + * + * Copyright (C) 2005-2008 Samsung Electronics + * Kyungmin Park <kyungmin.park@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/* + * OneNAND initialization at U-Boot + */ + +#include <common.h> + +#ifdef CONFIG_CMD_ONENAND + +#include <linux/mtd/compat.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/onenand.h> + +struct mtd_info onenand_mtd; +struct onenand_chip onenand_chip; + +void onenand_init(void) +{ + memset(&onenand_mtd, 0, sizeof(struct mtd_info)); + memset(&onenand_chip, 0, sizeof(struct onenand_chip)); + + onenand_chip.base = (void *) CFG_ONENAND_BASE; + onenand_mtd.priv = &onenand_chip; + + onenand_scan(&onenand_mtd, 1); + + puts("OneNAND: "); + print_size(onenand_mtd.size, "\n"); +} + +#endif /* CONFIG_CMD_ONENAND */ diff --git a/drivers/pcmcia/marubun_pcmcia.c b/drivers/pcmcia/marubun_pcmcia.c index 7b112af9226..2479a6662af 100644 --- a/drivers/pcmcia/marubun_pcmcia.c +++ b/drivers/pcmcia/marubun_pcmcia.c @@ -25,11 +25,13 @@ #include <pcmcia.h> #include <asm/io.h> -#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) +#undef CONFIG_PCMCIA + +#if defined(CONFIG_CMD_PCMCIA) #define CONFIG_PCMCIA #endif -#if (CONFIG_COMMANDS & CFG_CMD_IDE) +#if defined(CONFIG_CMD_IDE) #define CONFIG_PCMCIA #endif diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c index ee44ba26445..00a9b391951 100644 --- a/drivers/serial/serial_sh.c +++ b/drivers/serial/serial_sh.c @@ -30,24 +30,39 @@ #error "Default SCIF doesn't set....." #endif -#define SCSMR (vu_short *)(SCIF_BASE + 0x0) -#define SCBRR (vu_char *)(SCIF_BASE + 0x4) -#define SCSCR (vu_short *)(SCIF_BASE + 0x8) +/* Base register */ +#define SCSMR (vu_short *)(SCIF_BASE + 0x0) +#define SCBRR (vu_char *)(SCIF_BASE + 0x4) +#define SCSCR (vu_short *)(SCIF_BASE + 0x8) +#define SCFCR (vu_short *)(SCIF_BASE + 0x18) +#define SCFDR (vu_short *)(SCIF_BASE + 0x1C) +#ifdef CONFIG_SH7720 /* SH7720 specific */ +#define SCFSR (vu_short *)(SCIF_BASE + 0x14) /* SCSSR */ +#define SCFTDR (vu_char *)(SCIF_BASE + 0x20) +#define SCFRDR (vu_char *)(SCIF_BASE + 0x24) +#else #define SCFTDR (vu_char *)(SCIF_BASE + 0xC) #define SCFSR (vu_short *)(SCIF_BASE + 0x10) #define SCFRDR (vu_char *)(SCIF_BASE + 0x14) -#define SCFCR (vu_short *)(SCIF_BASE + 0x18) -#define SCFDR (vu_short *)(SCIF_BASE + 0x1C) +#endif + #if defined(CONFIG_SH4A) #define SCRFDR (vu_short *)(SCIF_BASE + 0x20) #define SCSPTR (vu_short *)(SCIF_BASE + 0x24) #define SCLSR (vu_short *)(SCIF_BASE + 0x28) #define SCRER (vu_short *)(SCIF_BASE + 0x2C) +#define LSR_ORER 1 #elif defined (CONFIG_SH4) #define SCSPTR (vu_short *)(SCIF_BASE + 0x20) #define SCLSR (vu_short *)(SCIF_BASE + 0x24) +#define LSR_ORER 1 #elif defined (CONFIG_SH3) -#define SCLSR (vu_short *)(SCIF_BASE + 0x24) +#ifdef CONFIG_SH7720 /* SH7720 specific */ +# define SCLSR SCFSR /* SCSSR */ +#else +# define SCLSR (vu_short *)(SCIF_BASE + 0x24) +#endif +#define LSR_ORER 0x0200 #endif #define SCR_RE (1 << 4) @@ -67,10 +82,18 @@ void serial_setbrg (void) { DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CPU_SH7720) + int divisor = gd->baudrate * 16; + + *SCBRR = (CONFIG_SYS_CLK_FREQ * 2 + (divisor / 2)) / + (gd->baudrate * 32) - 1; +#else int divisor = gd->baudrate * 32; *SCBRR = (CONFIG_SYS_CLK_FREQ + (divisor / 2)) / (gd->baudrate * 32) - 1; +#endif } int serial_init (void) @@ -133,7 +156,6 @@ int serial_tstc (void) #define FSR_ERR_CLEAR 0x0063 #define RDRF_CLEAR 0x00fc -#define LSR_ORER 1 void handle_error( void ){ (void)*SCFSR ; diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile new file mode 100644 index 00000000000..0b7a2dfd3b2 --- /dev/null +++ b/drivers/spi/Makefile @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000-2007 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# 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 $(TOPDIR)/config.mk + +LIB := $(obj)libspi.a + +COBJS-y += mpc8xxx_spi.o + +COBJS := $(COBJS-y) +SRCS := $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) + +all: $(LIB) + +$(LIB): $(obj).depend $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c new file mode 100644 index 00000000000..a3d1c955152 --- /dev/null +++ b/drivers/spi/mpc8xxx_spi.c @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2006 Ben Warren, Qstreams Networks Inc. + * With help from the common/soft_spi and cpu/mpc8260 drivers + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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 <spi.h> +#include <asm/mpc8xxx_spi.h> + +#ifdef CONFIG_HARD_SPI + +#define SPI_EV_NE (0x80000000 >> 22) /* Receiver Not Empty */ +#define SPI_EV_NF (0x80000000 >> 23) /* Transmitter Not Full */ + +#define SPI_MODE_LOOP (0x80000000 >> 1) /* Loopback mode */ +#define SPI_MODE_REV (0x80000000 >> 5) /* Reverse mode - MSB first */ +#define SPI_MODE_MS (0x80000000 >> 6) /* Always master */ +#define SPI_MODE_EN (0x80000000 >> 7) /* Enable interface */ + +#define SPI_TIMEOUT 1000 + +void spi_init(void) +{ + volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi; + + /* + * SPI pins on the MPC83xx are not muxed, so all we do is initialize + * some registers + */ + spi->mode = SPI_MODE_REV | SPI_MODE_MS | SPI_MODE_EN; + spi->mode = (spi->mode & 0xfff0ffff) | (1 << 16); /* Use SYSCLK / 8 + (16.67MHz typ.) */ + spi->event = 0xffffffff; /* Clear all SPI events */ + spi->mask = 0x00000000; /* Mask all SPI interrupts */ + spi->com = 0; /* LST bit doesn't do anything, so disregard */ +} + +int spi_xfer(spi_chipsel_type chipsel, int bitlen, uchar *dout, uchar *din) +{ + volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi; + unsigned int tmpdout, tmpdin, event; + int numBlks = bitlen / 32 + (bitlen % 32 ? 1 : 0); + int tm, isRead = 0; + unsigned char charSize = 32; + + debug("spi_xfer: chipsel %08X dout %08X din %08X bitlen %d\n", + (int)chipsel, *(uint *) dout, *(uint *) din, bitlen); + + if (chipsel != NULL) + (*chipsel) (1); /* select the target chip */ + + spi->event = 0xffffffff; /* Clear all SPI events */ + + /* handle data in 32-bit chunks */ + while (numBlks--) { + tmpdout = 0; + charSize = (bitlen >= 32 ? 32 : bitlen); + + /* Shift data so it's msb-justified */ + tmpdout = *(u32 *) dout >> (32 - charSize); + + /* The LEN field of the SPMODE register is set as follows: + * + * Bit length setting + * len <= 4 3 + * 4 < len <= 16 len - 1 + * len > 16 0 + */ + + if (bitlen <= 16) { + if (bitlen <= 4) + spi->mode = (spi->mode & 0xff0fffff) | + (3 << 20); + else + spi->mode = (spi->mode & 0xff0fffff) | + ((bitlen - 1) << 20); + } else { + spi->mode = (spi->mode & 0xff0fffff); + /* Set up the next iteration if sending > 32 bits */ + bitlen -= 32; + dout += 4; + } + + spi->tx = tmpdout; /* Write the data out */ + debug("*** spi_xfer: ... %08x written\n", tmpdout); + + /* + * Wait for SPI transmit to get out + * or time out (1 second = 1000 ms) + * The NE event must be read and cleared first + */ + for (tm = 0, isRead = 0; tm < SPI_TIMEOUT; ++tm) { + event = spi->event; + if (event & SPI_EV_NE) { + tmpdin = spi->rx; + spi->event |= SPI_EV_NE; + isRead = 1; + + *(u32 *) din = (tmpdin << (32 - charSize)); + if (charSize == 32) { + /* Advance output buffer by 32 bits */ + din += 4; + } + } + /* + * Only bail when we've had both NE and NF events. + * This will cause timeouts on RO devices, so maybe + * in the future put an arbitrary delay after writing + * the device. Arbitrary delays suck, though... + */ + if (isRead && (event & SPI_EV_NF)) + break; + } + if (tm >= SPI_TIMEOUT) + puts("*** spi_xfer: Time out during SPI transfer"); + + debug("*** spi_xfer: transfer ended. Value=%08x\n", tmpdin); + } + + if (chipsel != NULL) + (*chipsel) (0); /* deselect the target chip */ + + return 0; +} +#endif /* CONFIG_HARD_SPI */ |