Hi Mansoor,
On 05.03.2010 07:47, Mansoor wrote:
Dirk Behme<dirk.behme<at> googlemail.com> writes:
E.g. what I did for OMAP3 SPI driver:
/* OMAP3 McSPI registers */
struct mcspi_channel {
unsigned int chconf; /* 0x2C, 0x40, 0x54, 0x68 */
unsigned int chstat; /* 0x30, 0x44, 0x58, 0x6C */
unsigned int chctrl; /* 0x34, 0x48, 0x5C, 0x70 */
unsigned int tx; /* 0x38, 0x4C, 0x60, 0x74 */
unsigned int rx; /* 0x3C, 0x50, 0x64, 0x78 */
};
[...]
writel(value, regs->modulctrl);
Hi Dirk,
I could not find this code in any of the repositories. Could you share the
u-boot omap3 spi driver?
I used the SPI driver for DaVinci (which this thread is about) as
starting point for an U-Boot OMAP3 driver. The goal was to be able to
access SPI ethernet on Zippy expansion board for Beagle.
Unfortunately, I never found the time to finalize it.
Please find my latest patch from beginning of January 2010 in attachment.
I really hope it might help to finalize it!
Many thanks for asking and best regards
Dirk
P.S.: You might notice that the patch contains changes for the SPI
ethernet, too. This should be moved to a separate patch.
---
board/ti/beagle/beagle.c | 14 ++
drivers/net/enc28j60.c | 156 +++++++++++++----------
drivers/spi/Makefile | 1
drivers/spi/omap3_spi.c | 272 +++++++++++++++++++++++++++++++++++++++++
drivers/spi/omap3_spi.h | 115 +++++++++++++++++
include/configs/omap3_beagle.h | 10 +
include/netdev.h | 2
7 files changed, 503 insertions(+), 67 deletions(-)
Index: u-boot-main/include/configs/omap3_beagle.h
===================================================================
--- u-boot-main.orig/include/configs/omap3_beagle.h
+++ u-boot-main/include/configs/omap3_beagle.h
@@ -336,4 +336,14 @@ extern unsigned int boot_flash_sec;
extern unsigned int boot_flash_type;
#endif
+/*-----------------------------------------------------------------------
+ * SPI based ethernet on optional TinCanTools Zippy board
+ */
+#define CONFIG_OMAP3_SPI
+#define CONFIG_NET_MULTI
+#define CONFIG_ENC28J60
+#define CONFIG_ENC28J60_SPI_BUS 3
+#define CONFIG_ENC28J60_SPI_CS 0
+#define CONFIG_ENC28J60_SPI_CLK 20000000
+#define CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */
#endif /* __CONFIG_H */
Index: u-boot-main/drivers/net/enc28j60.c
===================================================================
--- u-boot-main.orig/drivers/net/enc28j60.c
+++ u-boot-main/drivers/net/enc28j60.c
@@ -17,9 +17,9 @@
#include <config.h>
#include <common.h>
+#include <malloc.h>
#include <net.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/spi.h>
+#include <spi.h>
/*
* Control Registers in Bank 0
@@ -284,10 +284,14 @@
/* maximum frame length */
#define ENC_MAX_FRM_LEN 1518
-#define enc_enable() PUT32(IO1CLR, ENC_SPI_SLAVE_CS)
-#define enc_disable() PUT32(IO1SET, ENC_SPI_SLAVE_CS)
-#define enc_cfg_spi() spi_set_cfg(0, 0, 0); spi_set_clock(8);
-
+#define enc_enable(x) spi_cs_activate(x);
+#define enc_disable(x) spi_cs_deactivate(x);
+#define spi_write(x) spi_w8r8(slave, x)
+#define spi_read() spi_w8r8(slave, 0)
+#define spi_lock() spi_claim_bus(slave)
+#define spi_unlock() spi_release_bus(slave)
+/* Use spi_setup_slave() instead of enc_cfg_spi() */
+#define enc_cfg_spi()
static unsigned char encReadReg (unsigned char regNo);
static void encWriteReg (unsigned char regNo, unsigned char data);
@@ -322,45 +326,11 @@ static unsigned char next_pointer_msb;
static unsigned char buffer[ENC_MAX_FRM_LEN];
static int rxResetCounter = 0;
-#define RX_RESET_COUNTER 1000;
-
-/*-----------------------------------------------------------------------------
- * Always returns 0
- */
-int eth_init (bd_t * bis)
-{
- unsigned char estatVal;
- uchar enetaddr[6];
-
- /* configure GPIO */
- (*((volatile unsigned long *) IO1DIR)) |= ENC_SPI_SLAVE_CS;
- (*((volatile unsigned long *) IO1DIR)) |= ENC_RESET;
-
- /* CS and RESET active low */
- PUT32 (IO1SET, ENC_SPI_SLAVE_CS);
- PUT32 (IO1SET, ENC_RESET);
-
- spi_init ();
+static struct spi_slave *slave;
- /* taken from the Linux driver - dangerous stuff here! */
- /* Wait for CLKRDY to become set (i.e., check that we can communicate
with
- the ENC) */
- do
- {
- estatVal = m_nic_read(CTL_REG_ESTAT);
- } while ((estatVal & 0x08) || (~estatVal & ENC_ESTAT_CLKRDY));
-
- /* initialize controller */
- encReset ();
- eth_getenv_enetaddr("ethaddr", enetaddr);
- encInit (enetaddr);
-
- m_nic_bfs (CTL_REG_ECON1, ENC_ECON1_RXEN); /* enable receive */
-
- return 0;
-}
+#define RX_RESET_COUNTER 1000;
-int eth_send (volatile void *packet, int length)
+int enc28j60_send (struct eth_device *dev, volatile void *packet, int length)
{
/* check frame length, etc. */
/* TODO: */
@@ -428,7 +398,7 @@ static void encReceiverResetCallback (vo
* Check for received packets. Call NetReceive for each packet. The return
* value is ignored by the caller.
*/
-int eth_rx (void)
+int enc28j60_recv (struct eth_device *dev)
{
if (rxResetCounter > 0 && --rxResetCounter == 0) {
encReceiverResetCallback ();
@@ -439,7 +409,7 @@ int eth_rx (void)
return 0;
}
-void eth_halt (void)
+void enc28j60_halt (struct eth_device *dev)
{
m_nic_bfc (CTL_REG_ECON1, ENC_ECON1_RXEN); /* disable receive */
}
@@ -592,17 +562,17 @@ static void encWriteReg (unsigned char r
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x40 | regNo); /* write in regNo */
spi_write (data);
- enc_disable ();
- enc_enable ();
+ enc_disable (slave);
+ enc_enable (slave);
spi_write (0x1f); /* write reg 0x1f */
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
}
@@ -615,17 +585,17 @@ static void encWriteRegRetry (unsigned c
for (i = 0; i < c; i++) {
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x40 | regNo); /* write in regNo */
spi_write (data);
- enc_disable ();
- enc_enable ();
+ enc_disable (slave);
+ enc_enable (slave);
spi_write (0x1f); /* write reg 0x1f */
- enc_disable ();
+ enc_disable (slave);
spi_unlock (); /* we must unlock spi first */
@@ -649,14 +619,14 @@ static unsigned char encReadReg (unsigne
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x1f); /* read reg 0x1f */
bank = spi_read () & 0x3;
- enc_disable ();
- enc_enable ();
+ enc_disable (slave);
+ enc_enable (slave);
spi_write (regNo);
rxByte = spi_read ();
@@ -668,7 +638,7 @@ static unsigned char encReadReg (unsigne
rxByte = spi_read ();
}
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
return rxByte;
@@ -678,7 +648,7 @@ static void encReadBuff (unsigned short
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x20 | 0x1a); /* read buffer memory */
@@ -689,7 +659,7 @@ static void encReadBuff (unsigned short
spi_write (0);
}
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
}
@@ -697,7 +667,7 @@ static void encWriteBuff (unsigned short
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x60 | 0x1a); /* write buffer memory */
@@ -706,7 +676,7 @@ static void encWriteBuff (unsigned short
while (length--)
spi_write (*pBuff++);
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
}
@@ -714,12 +684,12 @@ static void encBitSet (unsigned char reg
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0x80 | regNo); /* bit field set */
spi_write (data);
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
}
@@ -727,12 +697,12 @@ static void encBitClr (unsigned char reg
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0xA0 | regNo); /* bit field clear */
spi_write (data);
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
}
@@ -740,11 +710,11 @@ static void encReset (void)
{
spi_lock ();
enc_cfg_spi ();
- enc_enable ();
+ enc_enable (slave);
spi_write (0xff); /* soft reset */
- enc_disable ();
+ enc_disable (slave);
spi_unlock ();
/* sleep 1 ms. See errata pt. 2 */
@@ -980,3 +950,55 @@ static void phyWrite(unsigned char addr,
}
}
}
+
+/*-----------------------------------------------------------------------------
+ */
+int enc28j60_initialize(bd_t *bis, unsigned int spi_bus, unsigned int spi_cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ unsigned char estatVal;
+ struct eth_device *dev;
+ uchar enetaddr[6];
+
+ dev = malloc(sizeof(*dev));
+ if (dev == NULL) {
+ return 1;
+ }
+
+ spi_init ();
+ if (!slave) {
+ slave = spi_setup_slave(spi_bus, spi_cs, max_hz, mode);
+ if (!slave)
+ return -1;
+ }
+ spi_claim_bus(slave);
+ printf("Test 3\n");
+
+ /* taken from the Linux driver - dangerous stuff here! */
+ /* Wait for CLKRDY to become set (i.e., check that we can communicate
with
+ the ENC) */
+ do
+ {
+ estatVal = m_nic_read(CTL_REG_ESTAT);
+ } while ((estatVal & 0x08) || (~estatVal & ENC_ESTAT_CLKRDY));
+ printf("Test 4\n");
+
+ /* initialize controller */
+ encReset ();
+ eth_getenv_enetaddr("ethaddr", enetaddr);
+ encInit (enetaddr);
+
+ m_nic_bfs (CTL_REG_ECON1, ENC_ECON1_RXEN); /* enable receive */
+
+ memset(dev, 0, sizeof(*dev));
+ sprintf(dev->name, "ENC29J60");
+
+ dev->halt = enc28j60_halt;
+ dev->send = enc28j60_send;
+ dev->recv = enc28j60_recv;
+
+ eth_register(dev);
+
+ return 0;
+}
+
Index: u-boot-main/drivers/spi/omap3_spi.c
===================================================================
--- /dev/null
+++ u-boot-main/drivers/spi/omap3_spi.c
@@ -0,0 +1,272 @@
+/*
+ * Copyright (C) 2010 Dirk Behme <dirk.be...@googlemail.com>
+ *
+ * Driver for McSPI controller on OMAP3. Based on davinci_spi.c
+ * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * Parts taken from linux/drivers/spi/omap2_mcspi.c
+ * Copyright (C) 2005, 2006 Nokia Corporation
+ *
+ * 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 <malloc.h>
+#include <asm/io.h>
+#include "omap3_spi.h"
+
+#define WORD_LEN 8
+
+static void spi_reset(struct omap3_spi_slave *ds)
+{
+ unsigned int tmp;
+
+ writel(OMAP3_MCSPI_SYSCONFIG_SOFTRESET, &ds->regs->sysconfig);
+ do {
+ tmp = readl(&ds->regs->sysstatus);
+ } while (!(tmp & OMAP3_MCSPI_SYSSTATUS_RESETDONE));
+
+ writel(OMAP3_MCSPI_SYSCONFIG_AUTOIDLE |
+ OMAP3_MCSPI_SYSCONFIG_ENAWAKEUP |
+ OMAP3_MCSPI_SYSCONFIG_SMARTIDLE,
+ &ds->regs->sysconfig);
+
+ writel(OMAP3_MCSPI_WAKEUPENABLE_WKEN, &ds->regs->wakeupenable);
+}
+
+void spi_init()
+{
+ /* do nothing */
+}
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ struct omap3_spi_slave *ds;
+
+ ds = malloc(sizeof(struct omap3_spi_slave));
+ if (!ds) {
+ printf("SPI error: malloc of SPI structure failed\n");
+ return NULL;
+ }
+
+ /*
+ * OMAP3 McSPI (MultiChannel SPI) has 4 busses (modules) with different
number of
+ * chip selects (CS, channels):
+ * McSPI1 has 4 CS (bus 0, cs 0 - 3)
+ * McSPI2 has 2 CS (bus 1, cs 0 - 1)
+ * McSPI3 has 2 CS (bus 2, cs 0 - 1)
+ * McSPI4 has 1 CS (bus 3, cs 0)
+ */
+
+ switch (bus) {
+ case 0:
+ ds->regs = (struct mcspi *)OMAP3_MCSPI1_BASE;
+ break;
+ case 1:
+ ds->regs = (struct mcspi *)OMAP3_MCSPI2_BASE;
+ break;
+ case 2:
+ ds->regs = (struct mcspi *)OMAP3_MCSPI3_BASE;
+ break;
+ case 3:
+ ds->regs = (struct mcspi *)OMAP3_MCSPI4_BASE;
+ break;
+ default:
+ printf("SPI error: unsupported bus %i. Supported busses 0 -
3\n", bus);
+ return NULL;
+ }
+ ds->slave.bus = bus;
+
+ if (((bus == 0) && (cs > 3)) ||
+ ((bus == 1) && (cs > 1)) ||
+ ((bus == 2) && (cs > 1)) ||
+ ((bus == 3) && (cs > 0))) {
+ printf("SPI error: unsupported chip select %i on bus %i\n", cs,
bus);
+ return NULL;
+ }
+ ds->slave.cs = cs;
+
+ if (max_hz > OMAP3_MCSPI_MAX_FREQ) {
+ printf("SPI error: unsupported frequency %i Hz. Max frequency
is 48 Mhz\n",
+ max_hz);
+ return NULL;
+ }
+ ds->freq = max_hz;
+
+ if (mode > SPI_MODE_3) {
+ printf("SPI error: unsupported SPI mode %i\n", mode);
+ return NULL;
+ }
+ ds->mode = mode;
+
+ return &ds->slave;
+}
+
+void spi_free_slave(struct spi_slave *slave)
+{
+ struct omap3_spi_slave *ds = to_omap3_spi(slave);
+
+ free(ds);
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
+ struct omap3_spi_slave *ds = to_omap3_spi(slave);
+ unsigned int conf, div = 0;
+
+ /* McSPI global module configuration */
+
+ /*
+ * setup when switching from (reset default) slave mode
+ * to single-channel master mode
+ */
+ spi_reset(ds);
+ conf = readl(&ds->regs->modulctrl);
+ conf &= ~(OMAP3_MCSPI_MODULCTRL_STEST | OMAP3_MCSPI_MODULCTRL_MS);
+ conf |= OMAP3_MCSPI_MODULCTRL_SINGLE;
+ writel(conf, &ds->regs->modulctrl);
+
+ /* McSPI individual channel configuration */
+
+ /* Calculate clock divisor. Valid range: 0x0 - 0xC ( /1 - /4096 ) */
+ if (ds->freq) {
+ while (div <= 0xC && (OMAP3_MCSPI_MAX_FREQ / (1 << div))
+ > ds->freq)
+ div++;
+ } else
+ div = 0xC;
+
+ conf = readl(&ds->regs->channel[ds->slave.cs].chconf);
+
+ /* standard 4-wire master mode: SCK, MOSI/out, MISO/in, nCS
+ * REVISIT: this controller could support SPI_3WIRE mode.
+ */
+ conf &= ~(OMAP3_MCSPI_CHCONF_IS|OMAP3_MCSPI_CHCONF_DPE1);
+ conf |= OMAP3_MCSPI_CHCONF_DPE0;
+
+ /* wordlength */
+ conf &= ~OMAP3_MCSPI_CHCONF_WL_MASK;
+ conf |= (WORD_LEN - 1) << 7;
+
+ /* set chipselect polarity; manage with FORCE */
+ if (!(ds->mode & SPI_CS_HIGH))
+ conf |= OMAP3_MCSPI_CHCONF_EPOL; /* active-low; normal */
+ else
+ conf &= ~OMAP3_MCSPI_CHCONF_EPOL;
+
+ /* set clock divisor */
+ conf &= ~OMAP3_MCSPI_CHCONF_CLKD_MASK;
+ conf |= div << 2;
+
+ /* set SPI mode 0..3 */
+ if (ds->mode & SPI_CPOL)
+ conf |= OMAP3_MCSPI_CHCONF_POL;
+ else
+ conf &= ~OMAP3_MCSPI_CHCONF_POL;
+ if (ds->mode & SPI_CPHA)
+ conf |= OMAP3_MCSPI_CHCONF_PHA;
+ else
+ conf &= ~OMAP3_MCSPI_CHCONF_PHA;
+
+ /* Transmit & receive mode */
+ conf &= ~OMAP3_MCSPI_CHCONF_TRM_MASK;
+
+ writel(conf, &ds->regs->channel[ds->slave.cs].chconf);
+
+ return 0;
+}
+
+void spi_release_bus(struct spi_slave *slave)
+{
+ struct omap3_spi_slave *ds = to_omap3_spi(slave);
+
+ /* Reset the SPI hardware */
+ spi_reset(ds);
+}
+
+int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *dout, void *din, unsigned long flags)
+{
+ struct omap3_spi_slave *ds = to_omap3_spi(slave);
+ unsigned int len, i;
+ const u8 *txp = dout;
+ u8 *rxp = din;
+
+ if (bitlen == 0)
+ /* Finish any previously submitted transfers */
+ goto out;
+
+ /*
+ * It's not clear how non-8-bit-aligned transfers are supposed to be
+ * represented as a stream of bytes...this is a limitation of
+ * the current SPI interface - here we terminate on receiving such a
+ * transfer request.
+ */
+ if (bitlen % 8) {
+ /* Errors always terminate an ongoing transfer */
+ flags |= SPI_XFER_END;
+ goto out;
+ }
+
+ len = bitlen / 8;
+
+ /* enable McSPI channel */
+ writel(OMAP3_MCSPI_CHCTRL_EN, &ds->regs->channel[ds->slave.cs].chctrl);
+
+ /* Keep writing and reading 1 byte until done */
+ for (i = 0; i < len; i++) {
+
+ /* wait till TX register is empty (TXS == 1) */
+ while (!readl(&ds->regs->channel[ds->slave.cs].chstat) &
OMAP3_MCSPI_CHSTAT_TXS);
+
+ /* Write the data */
+ writel(*txp++, &ds->regs->channel[ds->slave.cs].tx);
+
+ /* Wait till RX register contains data (RXS == 1) */
+ while (!readl(&ds->regs->channel[ds->slave.cs].chstat) &
OMAP3_MCSPI_CHSTAT_RXS);
+
+ /* Read the data */
+ *rxp++ = readl(&ds->regs->channel[ds->slave.cs].rx);
+ }
+
+out:
+ /* Disable McSPI channel */
+ writel(0, &ds->regs->channel[ds->slave.cs].chctrl);
+
+ return 0;
+}
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ return 1;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ /* nothing to do */
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ /* nothing to do */
+}
+
Index: u-boot-main/drivers/spi/omap3_spi.h
===================================================================
--- /dev/null
+++ u-boot-main/drivers/spi/omap3_spi.h
@@ -0,0 +1,115 @@
+/*
+ * Register definitions for the OMAP3 McSPI Controller
+ *
+ * Copyright (C) 2010 Dirk Behme <dirk.be...@googlemail.com>
+ *
+ * Parts taken from linux/drivers/spi/omap2_mcspi.c
+ * Copyright (C) 2005, 2006 Nokia Corporation
+ *
+ * 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
+ */
+
+#define OMAP3_MCSPI1_BASE 0x48098000
+#define OMAP3_MCSPI2_BASE 0x4809A000
+#define OMAP3_MCSPI3_BASE 0x480B8000
+#define OMAP3_MCSPI4_BASE 0x480BA000
+
+#define OMAP3_MCSPI_MAX_FREQ 48000000
+
+/* OMAP3 McSPI registers */
+struct mcspi_channel {
+ unsigned int chconf; /* 0x2C, 0x40, 0x54, 0x68 */
+ unsigned int chstat; /* 0x30, 0x44, 0x58, 0x6C */
+ unsigned int chctrl; /* 0x34, 0x48, 0x5C, 0x70 */
+ unsigned int tx; /* 0x38, 0x4C, 0x60, 0x74 */
+ unsigned int rx; /* 0x3C, 0x50, 0x64, 0x78 */
+};
+
+struct mcspi {
+ unsigned char res1[0x10];
+ unsigned int sysconfig; /* 0x10 */
+ unsigned int sysstatus; /* 0x14 */
+ unsigned int irqstatus; /* 0x18 */
+ unsigned int irqenable; /* 0x1C */
+ unsigned int wakeupenable; /* 0x20 */
+ unsigned int syst; /* 0x24 */
+ unsigned int modulctrl; /* 0x28 */
+ struct mcspi_channel channel[4]; /* channel0: 0x2C - 0x3C, bus 0 & 1 &
2 & 3 */
+ /* channel1: 0x40 - 0x50, bus 0 & 1 */
+ /* channel2: 0x54 - 0x64, bus 0 & 1 */
+ /* channel3: 0x68 - 0x78, bus 0 */
+};
+
+/* per-register bitmasks */
+#define OMAP3_MCSPI_SYSCONFIG_SMARTIDLE (2 << 3)
+#define OMAP3_MCSPI_SYSCONFIG_ENAWAKEUP (1 << 2)
+#define OMAP3_MCSPI_SYSCONFIG_AUTOIDLE (1 << 0)
+#define OMAP3_MCSPI_SYSCONFIG_SOFTRESET (1 << 1)
+
+#define OMAP3_MCSPI_SYSSTATUS_RESETDONE (1 << 0)
+
+#define OMAP3_MCSPI_MODULCTRL_SINGLE (1 << 0)
+#define OMAP3_MCSPI_MODULCTRL_MS (1 << 2)
+#define OMAP3_MCSPI_MODULCTRL_STEST (1 << 3)
+
+#define OMAP3_MCSPI_CHCONF_PHA (1 << 0)
+#define OMAP3_MCSPI_CHCONF_POL (1 << 1)
+#define OMAP3_MCSPI_CHCONF_CLKD_MASK (0x0f << 2)
+#define OMAP3_MCSPI_CHCONF_EPOL (1 << 6)
+#define OMAP3_MCSPI_CHCONF_WL_MASK (0x1f << 7)
+#define OMAP3_MCSPI_CHCONF_TRM_RX_ONLY (0x01 << 12)
+#define OMAP3_MCSPI_CHCONF_TRM_TX_ONLY (0x02 << 12)
+#define OMAP3_MCSPI_CHCONF_TRM_MASK (0x03 << 12)
+#define OMAP3_MCSPI_CHCONF_DMAW (1 << 14)
+#define OMAP3_MCSPI_CHCONF_DMAR (1 << 15)
+#define OMAP3_MCSPI_CHCONF_DPE0 (1 << 16)
+#define OMAP3_MCSPI_CHCONF_DPE1 (1 << 17)
+#define OMAP3_MCSPI_CHCONF_IS (1 << 18)
+#define OMAP3_MCSPI_CHCONF_TURBO (1 << 19)
+#define OMAP3_MCSPI_CHCONF_FORCE (1 << 20)
+
+#define OMAP3_MCSPI_CHSTAT_RXS (1 << 0)
+#define OMAP3_MCSPI_CHSTAT_TXS (1 << 1)
+#define OMAP3_MCSPI_CHSTAT_EOT (1 << 2)
+
+#define OMAP3_MCSPI_CHCTRL_EN (1 << 0)
+
+#define OMAP3_MCSPI_WAKEUPENABLE_WKEN (1 << 0)
+
+struct omap3_spi_slave {
+ struct spi_slave slave;
+ struct mcspi *regs;
+ unsigned int freq;
+ unsigned int mode;
+};
+
+static inline struct omap3_spi_slave *to_omap3_spi(struct spi_slave *slave)
+{
+ return container_of(slave, struct omap3_spi_slave, slave);
+}
+
+#if 0
+
+#define spi_readl(ds, reg) \
+ readl(ds->regs + DAVINCI_SPI_##reg)
+#define spi_writel(ds, reg, value) \
+ writel(value, ds->regs + DAVINCI_SPI_##reg)
+
+#endif
+
Index: u-boot-main/drivers/spi/Makefile
===================================================================
--- u-boot-main.orig/drivers/spi/Makefile
+++ u-boot-main/drivers/spi/Makefile
@@ -33,6 +33,7 @@ COBJS-$(CONFIG_KIRKWOOD_SPI) += kirkwood
COBJS-$(CONFIG_MPC52XX_SPI) += mpc52xx_spi.o
COBJS-$(CONFIG_MPC8XXX_SPI) += mpc8xxx_spi.o
COBJS-$(CONFIG_MXC_SPI) += mxc_spi.o
+COBJS-$(CONFIG_OMAP3_SPI) += omap3_spi.o
COBJS-$(CONFIG_SOFT_SPI) += soft_spi.o
COBJS := $(COBJS-y)
Index: u-boot-main/board/ti/beagle/beagle.c
===================================================================
--- u-boot-main.orig/board/ti/beagle/beagle.c
+++ u-boot-main/board/ti/beagle/beagle.c
@@ -30,6 +30,8 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#include <netdev.h>
+#include <spi.h>
#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mux.h>
@@ -231,3 +233,15 @@ void set_muxconf_regs(void)
MUX_BEAGLE_C();
}
}
+
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_ENC28J60
+ rc = enc28j60_initialize(bis, CONFIG_ENC28J60_SPI_BUS,
+ CONFIG_ENC28J60_SPI_CS,
+ CONFIG_ENC28J60_SPI_CLK,
+ SPI_MODE_3);
+#endif
+ return rc;
+}
Index: u-boot-main/include/netdev.h
===================================================================
--- u-boot-main.orig/include/netdev.h
+++ u-boot-main/include/netdev.h
@@ -49,6 +49,8 @@ int davinci_emac_initialize(void);
int dnet_eth_initialize(int id, void *regs, unsigned int phy_addr);
int e1000_initialize(bd_t *bis);
int eepro100_initialize(bd_t *bis);
+int enc28j60_initialize(bd_t *bis, unsigned int spi_bus, unsigned int spi_cs,
+ unsigned int max_hz, unsigned int mode);
int eth_3com_initialize (bd_t * bis);
int fec_initialize (bd_t *bis);
int fecmxc_initialize (bd_t *bis);
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