Add PCI support for Sorcery board.

Code cleanup (especially Sorcery / Alaska / Yukon serial driver).

7 files changed, 206 insertions, 150 deletions

diff --git a/cpu/mpc8220/Makefile b/cpu/mpc8220/Makefile
index 8b9979d..7c9b6c9 100644
--- a/cpu/mpc8220/Makefile
+++ b/cpu/mpc8220/Makefile
@@ -28,8 +28,8 @@ LIB	= lib$(CPU).a
 START	= start.o
 ASOBJS	= io.o fec_dma_tasks.o
 OBJS	= cpu.o cpu_init.o dramSetup.o fec.o i2c.o \
-	  interrupts.o loadtask.o serial.o speed.o \
-	  traps.o uart.o
+	  interrupts.o loadtask.o speed.o \
+	  traps.o uart.o pci.o
 
 all:	.depend $(START) $(ASOBJS) $(LIB)
 
diff --git a/cpu/mpc8220/cpu_init.c b/cpu/mpc8220/cpu_init.c
index a1e2f65..8c358a8 100644
--- a/cpu/mpc8220/cpu_init.c
+++ b/cpu/mpc8220/cpu_init.c
@@ -49,6 +49,8 @@ void cpu_init_f (void)
 	portcfg->pcfg1 = 0;
 	portcfg->pcfg2 = 0;
 	portcfg->pcfg3 = 0;
+	portcfg->pcfg2 = CFG_GP1_PORT2_CONFIG;
+	portcfg->pcfg3 = CFG_PCI_PORT3_CONFIG | CFG_GP2_PORT3_CONFIG;
 
 	/*
 	 * Flexbus Controller: configure chip selects and enable them
@@ -109,7 +111,7 @@ void cpu_init_f (void)
 
 	/* Master Priority Enable */
 	xlbarb->mastPriority = 0;
-	xlbarb->mastPriEn = 0x1f;
+	xlbarb->mastPriEn = 0xff;
 }
 
 /*
diff --git a/cpu/mpc8220/dramSetup.c b/cpu/mpc8220/dramSetup.c
index 90a7183..1d0d384 100644
--- a/cpu/mpc8220/dramSetup.c
+++ b/cpu/mpc8220/dramSetup.c
@@ -543,12 +543,7 @@ u32 dramSetup (void)
 	}
 
 	/* Set up the Drive Strength register */
-	temp = ((DRIVE_STRENGTH_LOW << SDRAMDS_SBE_SHIFT)
-		| (DRIVE_STRENGTH_HIGH << SDRAMDS_SBC_SHIFT)
-		| (DRIVE_STRENGTH_LOW << SDRAMDS_SBA_SHIFT)
-		| (DRIVE_STRENGTH_OFF << SDRAMDS_SBS_SHIFT)
-		| (DRIVE_STRENGTH_LOW << SDRAMDS_SBD_SHIFT));
-	sysconf->sdramds = temp;
+	sysconf->sdramds = CFG_SDRAM_DRIVE_STRENGTH;
 
 	/* ********************** Cfg 1 ************************* */
 
diff --git a/cpu/mpc8220/fec.c b/cpu/mpc8220/fec.c
index 96228e5..5746823 100644
--- a/cpu/mpc8220/fec.c
+++ b/cpu/mpc8220/fec.c
@@ -15,11 +15,10 @@
 #include "fec.h"
 
 #define DEBUG	0
-/*tbd - rtm */
-/*#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
-    defined(CONFIG_MPC8220_FEC)*/
+#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \
+    defined(CONFIG_MPC8220_FEC)
 
-#if (CONFIG_COMMANDS & CFG_CMD_NET)
+/*#if (CONFIG_COMMANDS & CFG_CMD_NET)*/
 
 #if (DEBUG & 0x60)
 static void tfifo_print (mpc8220_fec_priv * fec);
diff --git a/cpu/mpc8220/pci.c b/cpu/mpc8220/pci.c
new file mode 100644
index 0000000..ca4a04d
--- /dev/null
+++ b/cpu/mpc8220/pci.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright 2004 Freescale Semiconductor.
+ * Copyright (C) 2003 Motorola Inc.
+ * Xianghua Xiao (x.xiao@motorola.com)
+ *
+ * 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
+ */
+
+/*
+ * PCI Configuration space access support for MPC8220 PCI Bridge
+ */
+#include <common.h>
+#include <mpc8220.h>
+#include <pci.h>
+#include <asm/io.h>
+
+#if defined(CONFIG_PCI)
+
+/* System RAM mapped over PCI */
+#define CONFIG_PCI_SYS_MEM_BUS	 CFG_SDRAM_BASE
+#define CONFIG_PCI_SYS_MEM_PHYS	 CFG_SDRAM_BASE
+#define CONFIG_PCI_SYS_MEM_SIZE	 (1024 * 1024 * 1024)
+
+#define cfg_read(val, addr, type, op)		*val = op((type)(addr));
+#define cfg_write(val, addr, type, op)		op((type *)(addr), (val));
+
+#define PCI_OP(rw, size, type, op, mask)				\
+int mpc8220_pci_##rw##_config_##size(struct pci_controller *hose,	\
+	pci_dev_t dev, int offset, type val)				\
+{									\
+	u32 addr = 0;							\
+	u16 cfg_type = 0;						\
+	addr = ((offset & 0xfc) | cfg_type | (dev)  | 0x80000000);	\
+	out_be32(hose->cfg_addr, addr);					\
+	__asm__ __volatile__("sync");					\
+	cfg_##rw(val, hose->cfg_data + (offset & mask), type, op);	\
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);			\
+	__asm__ __volatile__("sync");					\
+	return 0;							\
+}
+
+PCI_OP(read, byte, u8 *, in_8, 3)
+PCI_OP(read, word, u16 *, in_le16, 2)
+PCI_OP(write, byte, u8, out_8, 3)
+PCI_OP(write, word, u16, out_le16, 2)
+PCI_OP(write, dword, u32, out_le32, 0)
+
+int mpc8220_pci_read_config_dword(struct pci_controller *hose, pci_dev_t dev,
+	int offset, u32 *val)
+{
+	u32 addr;
+	u32 tmpv;
+	u32 mask = 2;	 /* word access */
+	/* Read lower 16 bits */
+	addr = ((offset & 0xfc) | (dev) | 0x80000000);
+	out_be32(hose->cfg_addr, addr);
+	__asm__ __volatile__("sync");
+	*val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask)));
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);
+	__asm__ __volatile__("sync");
+
+	/* Read upper 16 bits */
+	offset += 2;
+	addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000);
+	out_be32(hose->cfg_addr, addr);
+	__asm__ __volatile__("sync");
+	tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask)));
+	out_be32(hose->cfg_addr, addr & 0x7fffffff);
+	__asm__ __volatile__("sync");
+
+	/* combine results into dword value */
+	*val = (tmpv << 16) | *val;
+
+	return 0;
+}
+
+void
+pci_mpc8220_init(struct pci_controller *hose)
+{
+	u32 win0, win1, win2;
+	volatile mpc8220_xcpci_t *xcpci =
+		(volatile mpc8220_xcpci_t *) MMAP_XCPCI;
+
+	volatile pcfg8220_t *portcfg = (volatile pcfg8220_t *) MMAP_PCFG;
+
+	win0 = (u32) CONFIG_PCI_MEM_PHYS;
+	win1 = (u32) CONFIG_PCI_IO_PHYS;
+	win2 = (u32) CONFIG_PCI_CFG_PHYS;
+
+	/* Assert PCI reset */
+	out_be32 (&xcpci->glb_stat_ctl, PCI_GLB_STAT_CTRL_PR);
+
+	/* Disable prefetching but read-multiples will still prefetch */
+	out_be32 (&xcpci->target_ctrl, 0x00000000);
+
+	/* Initiator windows */
+	out_be32 (&xcpci->init_win0,  (win0 >> 16) | win0 | 0x003f0000);
+	out_be32 (&xcpci->init_win1, ((win1 >> 16) | win1 ));
+	out_be32 (&xcpci->init_win2, ((win2 >> 16) | win2 ));
+
+	out_be32 (&xcpci->init_win_cfg,
+		PCI_INIT_WIN_CFG_WIN0_CTRL_EN |
+		PCI_INIT_WIN_CFG_WIN1_CTRL_EN | PCI_INIT_WIN_CFG_WIN1_CTRL_IO |
+		PCI_INIT_WIN_CFG_WIN2_CTRL_EN | PCI_INIT_WIN_CFG_WIN2_CTRL_IO);
+
+	out_be32 (&xcpci->init_ctrl, 0x00000000);
+
+	/* Enable bus master and mem access */
+	out_be32 (&xcpci->stat_cmd_reg, PCI_STAT_CMD_B | PCI_STAT_CMD_M);
+
+	/* Cache line size and master latency */
+	out_be32 (&xcpci->bist_htyp_lat_cshl, (0xf8 << PCI_CFG1_LT_SHIFT));
+
+	out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */
+	out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */
+
+	out_be32 (&xcpci->target_bar0,
+		PCI_TARGET_BASE_ADDR_REG0 | PCI_TARGET_BASE_ADDR_EN);
+	out_be32 (&xcpci->target_bar1,
+		PCI_TARGET_BASE_ADDR_REG1 | PCI_TARGET_BASE_ADDR_EN);
+
+	/* Deassert reset bit */
+	out_be32 (&xcpci->glb_stat_ctl, 0x00000000);
+
+	/* Enable PCI bus master support */
+	/* Set PCIGNT1, PCIREQ1, PCIREQ0/PCIGNTIN, PCIGNT0/PCIREQOUT,
+	       PCIREQ2, PCIGNT2 */
+	out_be32((volatile u32 *)&portcfg->pcfg3,
+		(in_be32((volatile u32 *)&portcfg->pcfg3) & 0xFC3FCE7F));
+	out_be32((volatile u32 *)&portcfg->pcfg3,
+		(in_be32((volatile u32 *)&portcfg->pcfg3) | 0x01400180));
+
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+
+	pci_set_region(hose->regions + 0,
+		CONFIG_PCI_MEM_BUS,
+		CONFIG_PCI_MEM_PHYS,
+		CONFIG_PCI_MEM_SIZE,
+		PCI_REGION_MEM);
+
+	pci_set_region(hose->regions + 1,
+		CONFIG_PCI_IO_BUS,
+		CONFIG_PCI_IO_PHYS,
+		CONFIG_PCI_IO_SIZE,
+		PCI_REGION_IO);
+
+	pci_set_region(hose->regions + 2,
+		CONFIG_PCI_SYS_MEM_BUS,
+		CONFIG_PCI_SYS_MEM_PHYS,
+		CONFIG_PCI_SYS_MEM_SIZE,
+		PCI_REGION_MEM | PCI_REGION_MEMORY);
+
+	hose->region_count = 3;
+
+	hose->cfg_addr = &(xcpci->cfg_adr);
+	hose->cfg_data = CONFIG_PCI_CFG_BUS;
+
+	pci_set_ops(hose,
+		mpc8220_pci_read_config_byte,
+		mpc8220_pci_read_config_word,
+		mpc8220_pci_read_config_dword,
+		mpc8220_pci_write_config_byte,
+		mpc8220_pci_write_config_word,
+		mpc8220_pci_write_config_dword);
+
+	/* Hose scan */
+	pci_register_hose(hose);
+	hose->last_busno = pci_hose_scan(hose);
+
+	out_be32 (&xcpci->base0, PCI_BASE_ADDR_REG0); /* 256MB - MBAR space */
+	out_be32 (&xcpci->base1, PCI_BASE_ADDR_REG1); /* 1GB - SDRAM space */
+}
+
+#endif /* CONFIG_PCI */
diff --git a/cpu/mpc8220/serial.c b/cpu/mpc8220/serial.c
deleted file mode 100644
index 08285b8..0000000
--- a/cpu/mpc8220/serial.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * (C) Copyright 2004, Freescale, Inc
- * TsiChung Liew, Tsi-Chung.Liew@freescale.com.
- *
- * 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
- *
- */
-
-/*
- * Minimal serial functions needed to use one of the PSC ports
- * as serial console interface.
- */
-
-#include <common.h>
-#include <mpc8220.h>
-
-int serial_init (void)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-#if defined (CONFIG_EXTUART_CONSOLE)
-	volatile uchar *cpld = (volatile uchar *) CFG_CPLD_BASE;
-#endif
-
-	/* Check CPLD Switch 2 whether is external or internal */
-#if defined (CONFIG_EXTUART_CONSOLE)
-	if ((*cpld & 0x02) == 0x02) {
-		gd->bExtUart = 1;
-		return ext_serial_init ();
-	} else
-#endif
-	{
-#if defined(CONFIG_PSC_CONSOLE)
-		gd->bExtUart = 0;
-		return psc_serial_init ();
-#endif
-	}
-
-	return (0);
-}
-
-void serial_putc (const char c)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	if (gd->bExtUart) {
-#if defined (CONFIG_EXTUART_CONSOLE)
-		ext_serial_putc (c);
-#endif
-	} else {
-#if defined(CONFIG_PSC_CONSOLE)
-		psc_serial_putc (c);
-#endif
-	}
-}
-
-void serial_puts (const char *s)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	if (gd->bExtUart) {
-#if defined (CONFIG_EXTUART_CONSOLE)
-		ext_serial_puts (s);
-#endif
-	} else {
-#if defined(CONFIG_PSC_CONSOLE)
-		psc_serial_puts (s);
-#endif
-	}
-}
-
-int serial_getc (void)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	if (gd->bExtUart) {
-#if defined (CONFIG_EXTUART_CONSOLE)
-		return ext_serial_getc ();
-#endif
-	} else {
-#if defined(CONFIG_PSC_CONSOLE)
-		return psc_serial_getc ();
-#endif
-	}
-}
-
-int serial_tstc (void)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	if (gd->bExtUart) {
-#if defined (CONFIG_EXTUART_CONSOLE)
-		return ext_serial_tstc ();
-#endif
-	} else {
-#if defined(CONFIG_PSC_CONSOLE)
-		return psc_serial_tstc ();
-#endif
-	}
-}
-
-void serial_setbrg (void)
-{
-	DECLARE_GLOBAL_DATA_PTR;
-
-	if (gd->bExtUart) {
-#if defined (CONFIG_EXTUART_CONSOLE)
-		ext_serial_setbrg ();
-#endif
-	} else {
-#if defined(CONFIG_PSC_CONSOLE)
-		psc_serial_setbrg ();
-#endif
-	}
-}
diff --git a/cpu/mpc8220/uart.c b/cpu/mpc8220/uart.c
index 42ae325..5f54aac 100644
--- a/cpu/mpc8220/uart.c
+++ b/cpu/mpc8220/uart.c
@@ -33,7 +33,7 @@
 #define PSC_BASE   MMAP_PSC1
 
 #if defined(CONFIG_PSC_CONSOLE)
-int psc_serial_init (void)
+int serial_init (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;
 	volatile psc8220_t *psc = (psc8220_t *) PSC_BASE;
@@ -68,7 +68,7 @@ int psc_serial_init (void)
 	return (0);
 }
 
-void psc_serial_putc (const char c)
+void serial_putc (const char c)
 {
 	volatile psc8220_t *psc = (psc8220_t *) PSC_BASE;
 
@@ -81,14 +81,14 @@ void psc_serial_putc (const char c)
 	psc->xmitbuf[0] = c;
 }
 
-void psc_serial_puts (const char *s)
+void serial_puts (const char *s)
 {
 	while (*s) {
 		serial_putc (*s++);
 	}
 }
 
-int psc_serial_getc (void)
+int serial_getc (void)
 {
 	volatile psc8220_t *psc = (psc8220_t *) PSC_BASE;
 
@@ -97,14 +97,14 @@ int psc_serial_getc (void)
 	return psc->xmitbuf[2];
 }
 
-int psc_serial_tstc (void)
+int serial_tstc (void)
 {
 	volatile psc8220_t *psc = (psc8220_t *) PSC_BASE;
 
 	return (psc->sr_csr & PSC_SR_RXRDY);
 }
 
-void psc_serial_setbrg (void)
+void serial_setbrg (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;