Merge branch 'master' of git://www.denx.de/git/u-boot-mpc85xx
diff --git a/Makefile b/Makefile
index 78546cf..3cefb42 100644
--- a/Makefile
+++ b/Makefile
@@ -230,6 +230,7 @@
LIBS += drivers/net/sk98lin/libsk98lin.a
LIBS += drivers/pci/libpci.a
LIBS += drivers/pcmcia/libpcmcia.a
+LIBS += drivers/spi/libspi.a
ifeq ($(CPU),mpc83xx)
LIBS += drivers/qe/qe.a
endif
@@ -377,6 +378,7 @@
TAG_SUBDIRS += drivers/qe
TAG_SUBDIRS += drivers/rtc
TAG_SUBDIRS += drivers/serial
+TAG_SUBDIRS += drivers/spi
TAG_SUBDIRS += drivers/usb
TAG_SUBDIRS += drivers/video
diff --git a/README b/README
index f2a4914..f4478a1 100644
--- a/README
+++ b/README
@@ -1377,6 +1377,14 @@
SPI configuration items (port pins to use, etc). For
an example, see include/configs/sacsng.h.
+ CONFIG_HARD_SPI
+
+ Enables a hardware SPI driver for general-purpose reads
+ and writes. As with CONFIG_SOFT_SPI, the board configuration
+ must define a list of chip-select function pointers.
+ Currently supported on some MPC8xxx processors. For an
+ example, see include/configs/mpc8349emds.h.
+
- FPGA Support: CONFIG_FPGA
Enables FPGA subsystem.
diff --git a/board/freescale/mpc8349emds/mpc8349emds.c b/board/freescale/mpc8349emds/mpc8349emds.c
index 3d72eb7..9f4ac8e 100644
--- a/board/freescale/mpc8349emds/mpc8349emds.c
+++ b/board/freescale/mpc8349emds/mpc8349emds.c
@@ -27,6 +27,7 @@
#include <mpc83xx.h>
#include <asm/mpc8349_pci.h>
#include <i2c.h>
+#include <spi.h>
#include <spd.h>
#include <miiphy.h>
#if defined(CONFIG_SPD_EEPROM)
@@ -251,6 +252,34 @@
}
#endif
+/*
+ * The following are used to control the SPI chip selects for the SPI command.
+ */
+#ifdef CONFIG_HARD_SPI
+
+#define SPI_CS_MASK 0x80000000
+
+void spi_eeprom_chipsel(int cs)
+{
+ volatile gpio83xx_t *iopd = &((immap_t *)CFG_IMMR)->gpio[0];
+
+ if (cs)
+ iopd->dat &= ~SPI_CS_MASK;
+ else
+ iopd->dat |= SPI_CS_MASK;
+}
+
+/*
+ * The SPI command uses this table of functions for controlling the SPI
+ * chip selects.
+ */
+spi_chipsel_type spi_chipsel[] = {
+ spi_eeprom_chipsel,
+};
+int spi_chipsel_cnt = sizeof(spi_chipsel) / sizeof(spi_chipsel[0]);
+
+#endif /* CONFIG_HARD_SPI */
+
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c
index 3337d8c..e643037 100644
--- a/cpu/mpc83xx/cpu_init.c
+++ b/cpu/mpc83xx/cpu_init.c
@@ -73,11 +73,6 @@
(CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT);
#endif
-#ifdef CFG_SPCR_TSECEP
- /* eTSEC Emergency priority */
- im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSECEP) | (CFG_SPCR_TSECEP << SPCR_TSECEP_SHIFT);
-#endif
-
#ifdef CFG_ACR_RPTCNT
/* Arbiter repeat count */
im->arbiter.acr = (im->arbiter.acr & ~(ACR_RPTCNT)) |
@@ -85,7 +80,7 @@
#endif
#ifdef CFG_SPCR_TSECEP
- /* all TSEC's Emergency priority */
+ /* all eTSEC's Emergency priority */
im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSECEP) |
(CFG_SPCR_TSECEP << SPCR_TSECEP_SHIFT);
#endif
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c
index 61c9379..f598699 100644
--- a/cpu/mpc83xx/speed.c
+++ b/cpu/mpc83xx/speed.c
@@ -367,17 +367,17 @@
#endif
#if defined(CONFIG_MPC837X) || defined(CONFIG_MPC8315)
- switch ((sccr & SCCR_SATACM) >> SCCR_SATACM_SHIFT) {
- case SCCR_SATACM_0:
+ switch ((sccr & SCCR_SATA1CM) >> SCCR_SATA1CM_SHIFT) {
+ case 0:
sata_clk = 0;
break;
- case SCCR_SATACM_1:
+ case 1:
sata_clk = csb_clk;
break;
- case SCCR_SATACM_2:
+ case 2:
sata_clk = csb_clk / 2;
break;
- case SCCR_SATACM_3:
+ case 3:
sata_clk = csb_clk / 3;
break;
default:
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
new file mode 100644
index 0000000..0b7a2df
--- /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 0000000..a3d1c95
--- /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 */
diff --git a/include/asm-ppc/immap_83xx.h b/include/asm-ppc/immap_83xx.h
index 34ea295..5b21539 100644
--- a/include/asm-ppc/immap_83xx.h
+++ b/include/asm-ppc/immap_83xx.h
@@ -30,6 +30,7 @@
#include <asm/types.h>
#include <asm/fsl_i2c.h>
+#include <asm/mpc8xxx_spi.h>
/*
* Local Access Window
@@ -384,20 +385,6 @@
} lbus83xx_t;
/*
- * Serial Peripheral Interface
- */
-typedef struct spi83xx {
- u32 mode; /* mode register */
- u32 event; /* event register */
- u32 mask; /* mask register */
- u32 com; /* command register */
- u8 res0[0x10];
- u32 tx; /* transmit register */
- u32 rx; /* receive register */
- u8 res1[0xFD8];
-} spi83xx_t;
-
-/*
* DMA/Messaging Unit
*/
typedef struct dma83xx {
@@ -627,7 +614,7 @@
u8 res3[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res4[0x1000];
- spi83xx_t spi; /* Serial Peripheral Interface */
+ spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[2]; /* PCI Software Configuration Registers */
ios83xx_t ios; /* Sequencer */
@@ -661,7 +648,7 @@
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
- spi83xx_t spi; /* Serial Peripheral Interface */
+ spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];
@@ -696,7 +683,7 @@
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
- spi83xx_t spi; /* Serial Peripheral Interface */
+ spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];
@@ -741,7 +728,7 @@
u8 res2[0x900];
lbus83xx_t lbus; /* Local Bus Controller Registers */
u8 res3[0x1000];
- spi83xx_t spi; /* Serial Peripheral Interface */
+ spi8xxx_t spi; /* Serial Peripheral Interface */
dma83xx_t dma; /* DMA */
pciconf83xx_t pci_conf[1]; /* PCI Software Configuration Registers */
u8 res4[0x80];
diff --git a/include/asm-ppc/mpc8xxx_spi.h b/include/asm-ppc/mpc8xxx_spi.h
new file mode 100644
index 0000000..48b15e4
--- /dev/null
+++ b/include/asm-ppc/mpc8xxx_spi.h
@@ -0,0 +1,48 @@
+/*
+ * Freescale non-CPM SPI Controller
+ *
+ * Copyright 2008 Qstreams Networks, Inc.
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * 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.
+ *
+ * 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
+ */
+
+#ifndef _ASM_MPC8XXX_SPI_H_
+#define _ASM_MPC8XXX_SPI_H_
+
+#include <asm/types.h>
+
+#if defined(CONFIG_MPC834X) || \
+ defined(CONFIG_MPC8313) || \
+ defined(CONFIG_MPC8315) || \
+ defined(CONFIG_MPC837X)
+
+typedef struct spi8xxx {
+ u8 res0[0x20]; /* 0x0-0x01f reserved */
+ u32 mode; /* mode register */
+ u32 event; /* event register */
+ u32 mask; /* mask register */
+ u32 com; /* command register */
+ u32 tx; /* transmit register */
+ u32 rx; /* receive register */
+ u8 res1[0xFC8]; /* fill up to 0x1000 */
+} spi8xxx_t;
+
+#endif
+
+#endif /* _ASM_MPC8XXX_SPI_H_ */
diff --git a/include/configs/MPC8349EMDS.h b/include/configs/MPC8349EMDS.h
index 437a9a5..07f2f30 100644
--- a/include/configs/MPC8349EMDS.h
+++ b/include/configs/MPC8349EMDS.h
@@ -355,6 +355,15 @@
#define CFG_I2C_OFFSET 0x3000
#define CFG_I2C2_OFFSET 0x3100
+/* SPI */
+#define CONFIG_HARD_SPI /* SPI with hardware support */
+#undef CONFIG_SOFT_SPI /* SPI bit-banged */
+
+/* GPIOs. Used as SPI chip selects */
+#define CFG_GPIO1_PRELIM
+#define CFG_GPIO1_DIR 0xC0000000 /* SPI CS on 0, LED on 1 */
+#define CFG_GPIO1_DAT 0xC0000000 /* Both are active LOW */
+
/* TSEC */
#define CFG_TSEC1_OFFSET 0x24000
#define CFG_TSEC1 (CFG_IMMR+CFG_TSEC1_OFFSET)
diff --git a/include/mpc83xx.h b/include/mpc83xx.h
index 39cecf2..df052e3 100644
--- a/include/mpc83xx.h
+++ b/include/mpc83xx.h
@@ -725,6 +725,7 @@
#define SCCR_USBCM_3 0x00F00000
#elif defined(CONFIG_MPC8313)
+/* TSEC1 bits are for TSEC2 as well */
#define SCCR_TSEC1CM 0xc0000000
#define SCCR_TSEC1CM_SHIFT 30
#define SCCR_TSEC1CM_0 0x00000000
@@ -732,13 +733,6 @@
#define SCCR_TSEC1CM_2 0x80000000
#define SCCR_TSEC1CM_3 0xC0000000
-#define SCCR_TSEC2CM 0x30000000
-#define SCCR_TSEC2CM_SHIFT 28
-#define SCCR_TSEC2CM_0 0x00000000
-#define SCCR_TSEC2CM_1 0x10000000
-#define SCCR_TSEC2CM_2 0x20000000
-#define SCCR_TSEC2CM_3 0x30000000
-
#define SCCR_TSEC1ON 0x20000000
#define SCCR_TSEC1ON_SHIFT 29
#define SCCR_TSEC2ON 0x10000000
@@ -838,6 +832,8 @@
#define SCCR_PCIEXP2CM_3 0x000c0000
/* All of the four SATA controllers must have the same clock ratio */
+#define SCCR_SATA1CM 0x000000c0
+#define SCCR_SATA1CM_SHIFT 6
#define SCCR_SATACM 0x000000ff
#define SCCR_SATACM_SHIFT 0
#define SCCR_SATACM_0 0x00000000
diff --git a/lib_ppc/board.c b/lib_ppc/board.c
index 7b95246..bf261be 100644
--- a/lib_ppc/board.c
+++ b/lib_ppc/board.c
@@ -87,6 +87,9 @@
defined(CONFIG_SOFT_I2C)
#include <i2c.h>
#endif
+#if defined(CONFIG_HARD_SPI)
+#include <spi.h>
+#endif
#if defined(CONFIG_CMD_NAND)
void nand_init (void);
#endif
@@ -247,6 +250,16 @@
}
#endif
+#if defined(CONFIG_HARD_SPI)
+static int init_func_spi (void)
+{
+ puts ("SPI: ");
+ spi_init ();
+ puts ("ready\n");
+ return (0);
+}
+#endif
+
/***********************************************************************/
#if defined(CONFIG_WATCHDOG)
@@ -329,6 +342,9 @@
#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
init_func_i2c,
#endif
+#if defined(CONFIG_HARD_SPI)
+ init_func_spi,
+#endif
#if defined(CONFIG_DTT) /* Digital Thermometers and Thermostats */
dtt_init,
#endif