Add support for MPC8220 based "sorcery" board.

7 files changed, 186 insertions, 44 deletions

diff --git a/cpu/mpc8220/Makefile b/cpu/mpc8220/Makefile
index e64964b..8b9979d 100644
--- a/cpu/mpc8220/Makefile
+++ b/cpu/mpc8220/Makefile
@@ -27,8 +27,9 @@ LIB	= lib$(CPU).a
 
 START	= start.o
 ASOBJS	= io.o fec_dma_tasks.o
-OBJS	= i2c.o traps.o cpu.o cpu_init.o fec.o dramSetup.o interrupts.o \
-	  loadtask.o uart.o speed.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
 
 all:	.depend $(START) $(ASOBJS) $(LIB)
 
diff --git a/cpu/mpc8220/cpu_init.c b/cpu/mpc8220/cpu_init.c
index 09b23ee..a1e2f65 100644
--- a/cpu/mpc8220/cpu_init.c
+++ b/cpu/mpc8220/cpu_init.c
@@ -55,7 +55,11 @@ void cpu_init_f (void)
 	 */
 #if defined (CFG_CS0_BASE)
 	flexbus->csar0 = CFG_CS0_BASE;
+
+/* Sorcery-C can hang-up after CTRL reg initialization */
+#if defined (CFG_CS0_CTRL)
 	flexbus->cscr0 = CFG_CS0_CTRL;
+#endif
 	flexbus->csmr0 = ((CFG_CS0_MASK - 1) & 0xffff0000) | 1;
 	__asm__ volatile ("sync");
 #endif
@@ -97,15 +101,15 @@ void cpu_init_f (void)
 	/* This section of the code cannot place in cpu_init_r(),
 	   it will cause the system to hang */
 	/* enable timebase */
-	xlbarb->config = 0x00002000;
-
 	xlbarb->addrTenTimeOut = 0x1000;
 	xlbarb->dataTenTimeOut = 0x1000;
 	xlbarb->busActTimeOut = 0x2000;
 
+	xlbarb->config = 0x00002000;
+
 	/* Master Priority Enable */
-	xlbarb->mastPriEn = 0x1f;
 	xlbarb->mastPriority = 0;
+	xlbarb->mastPriEn = 0x1f;
 }
 
 /*
diff --git a/cpu/mpc8220/dramSetup.c b/cpu/mpc8220/dramSetup.c
index 033b719..90a7183 100644
--- a/cpu/mpc8220/dramSetup.c
+++ b/cpu/mpc8220/dramSetup.c
@@ -32,9 +32,9 @@ characteristics to initialize the dram on MPC8220
 #include "i2cCore.h"
 #include "dramSetup.h"
 
-#define SPD_SIZE    0x40
-#define DRAM_SPD    0xA2	/* on Board SPD eeprom */
-#define TOTAL_BANK  2
+#define SPD_SIZE	CFG_SDRAM_SPD_SIZE
+#define DRAM_SPD	(CFG_SDRAM_SPD_I2C_ADDR)<<1	/* on Board SPD eeprom */
+#define TOTAL_BANK	CFG_SDRAM_TOTAL_BANKS
 
 int spd_status (volatile i2c8220_t * pi2c, u8 sta_bit, u8 truefalse)
 {
@@ -144,7 +144,7 @@ int readSpdData (u8 * spdData)
 		break;
 	}
 
-	pi2cReg->adr = 0x90;	/* I2C device address */
+	pi2cReg->adr = CFG_I2C_SLAVE<<1;
 
 	pi2cReg->cr = I2C_CTL_EN;	/* Set Enable         */
 
@@ -569,7 +569,7 @@ u32 dramSetup (void)
 	cfg_value |= CFG1_SWT2RWP ((type == TYPE_DDR) ? 7 : 2);
 
 	/* Set the Read CAS latency.  We're going to use a CL of
-	 * 2 for DDR and SDR.
+	 * 2.5 for DDR and 2 SDR.
 	 */
 	cfg_value |= CFG1_RLATENCY ((type == TYPE_DDR) ? 7 : 2);
 
@@ -685,10 +685,14 @@ u32 dramSetup (void)
 	}
 
 
-	/* Set up mode value for CAS latency == 2 */
+	/* Set up mode value for CAS latency */
+#if (CFG_SDRAM_CAS_LATENCY==5) /* CL=2.5 */
+	mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) |
+		MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2p5) | MODE_CMD);
+#else
 	mode_value = (MODE_MODE | MODE_BURSTLEN (MODE_BURSTLEN_8) |
 		      MODE_BT_SEQUENTIAL | MODE_CL (MODE_CL_2) | MODE_CMD);
-
+#endif
 	asm volatile ("sync");
 
 	/* Write Extended Mode  - enable DLL */
@@ -698,7 +702,7 @@ u32 dramSetup (void)
 		memctl->mode = (temp >> 16);	/* mode */
 		asm volatile ("sync");
 
-		/* Write Mode - reset DLL, set CAS latency == 2 */
+		/* Write Mode - reset DLL, set CAS latency */
 		temp = mode_value | MODE_OPMODE (MODE_OPMODE_RESETDLL);
 		memctl->mode = (temp >> 16);	/* mode */
 		asm volatile ("sync");
diff --git a/cpu/mpc8220/serial.c b/cpu/mpc8220/serial.c
new file mode 100644
index 0000000..08285b8
--- /dev/null
+++ b/cpu/mpc8220/serial.c
@@ -0,0 +1,131 @@
+/*
+ * (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/speed.c b/cpu/mpc8220/speed.c
index bd79911..0c3df7c 100644
--- a/cpu/mpc8220/speed.c
+++ b/cpu/mpc8220/speed.c
@@ -42,30 +42,30 @@ int get_clocks (void)
 	DECLARE_GLOBAL_DATA_PTR;
 
 	pllcfg_t bus2core[] = {
-		{0x10, 2, 8},	/* 1 */
-		{0x08, 2, 4},
-		{0x60, 3, 8},	/* 1.5 */
+		{0x02, 2, 8},	/* 1 */
+		{0x01, 2, 4},
+		{0x0C, 3, 8},	/* 1.5 */
 		{0x00, 3, 4},
-		{0xc0, 3, 2},
-		{0x28, 4, 4},	/* 2 */
-		{0x20, 4, 2},
-		{0x88, 5, 4},	/* 2.5 */
-		{0x30, 5, 2},
-		{0x80, 6, 4},	/* 3 */
-		{0x40, 6, 2},
-		{0x70, 7, 2},	/* 3.5 */
-		{0x50, 8, 2},	/* 4 */
-		{0x38, 9, 2},	/* 4.5 */
-		{0x58, 10, 2},	/* 5 */
-		{0x48, 11, 2},	/* 5.5 */
-		{0x68, 12, 2},	/* 6 */
-		{0x90, 13, 2},	/* 6.5 */
-		{0xa0, 14, 2},	/* 7 */
-		{0xb0, 15, 2},	/* 7.5 */
-		{0xe0, 16, 2}	/* 8 */
+		{0x18, 3, 2},
+		{0x05, 4, 4},	/* 2 */
+		{0x04, 4, 2},
+		{0x11, 5, 4},	/* 2.5 */
+		{0x06, 5, 2},
+		{0x10, 6, 4},	/* 3 */
+		{0x08, 6, 2},
+		{0x0E, 7, 2},	/* 3.5 */
+		{0x0A, 8, 2},	/* 4 */
+		{0x07, 9, 2},	/* 4.5 */
+		{0x0B, 10, 2},	/* 5 */
+		{0x09, 11, 2},	/* 5.5 */
+		{0x0D, 12, 2},	/* 6 */
+		{0x12, 13, 2},	/* 6.5 */
+		{0x14, 14, 2},	/* 7 */
+		{0x16, 15, 2},	/* 7.5 */
+		{0x1C, 16, 2}	/* 8 */
 	};
 	u32 hid1;
-	int i, size;
+	int i, size, pci2bus;
 
 #if !defined(CFG_MPC8220_CLKIN)
 #error clock measuring not implemented yet - define CFG_MPC8220_CLKIN
@@ -73,9 +73,12 @@ int get_clocks (void)
 
 	gd->inp_clk = CFG_MPC8220_CLKIN;
 
-	/* Bus clock is fixed at 120Mhz for now */
-	/* will do dynamic in the future */
-	gd->bus_clk = CFG_MPC8220_CLKIN * 4;
+	/* Read XLB to PCI(INP) clock multiplier */
+	pci2bus = (*((volatile u32 *)PCI_REG_PCIGSCR) & 
+		PCI_REG_PCIGSCR_PCI2XLB_CLK_MASK)>>PCI_REG_PCIGSCR_PCI2XLB_CLK_BIT;
+
+	/* XLB bus clock */
+	gd->bus_clk = CFG_MPC8220_CLKIN * pci2bus;
 
 	/* PCI clock is same as input clock */
 	gd->pci_clk = CFG_MPC8220_CLKIN;
@@ -88,14 +91,13 @@ int get_clocks (void)
 	asm volatile ("mfspr %0, 1009":"=r" (hid1):);
 
 	size = sizeof (bus2core) / sizeof (pllcfg_t);
-	hid1 >>= 24;
+
+	hid1 >>= 27;
 
 	for (i = 0; i < size; i++)
 		if (hid1 == bus2core[i].hid1) {
 			gd->cpu_clk = (bus2core[i].multi * gd->bus_clk) >> 1;
-			/* Input Multiplier is determined by MPLL,
-			   hardcoded for now at 16 */
-			gd->vco_clk = gd->pci_clk * 16;
+			gd->vco_clk = CFG_MPC8220_SYSPLL_VCO_MULTIPLIER * (gd->pci_clk * bus2core[i].vco_div)/2;
 			break;
 		}
 
diff --git a/cpu/mpc8220/start.S b/cpu/mpc8220/start.S
index 6072374..c5d2388 100644
--- a/cpu/mpc8220/start.S
+++ b/cpu/mpc8220/start.S
@@ -111,6 +111,7 @@ boot_warm:
 
 	/* MBAR is mirrored into the MBAR SPR */
 	mtspr	MBAR,r3
+	mtspr	SPRN_SPRG7W,r3	
 	lis	r4, CFG_DEFAULT_MBAR@h
 	stw	r3, 0(r4)
 #endif /* CFG_DEFAULT_MBAR */
diff --git a/cpu/mpc8220/uart.c b/cpu/mpc8220/uart.c
index fcf947d..4ff8ccb 100644
--- a/cpu/mpc8220/uart.c
+++ b/cpu/mpc8220/uart.c
@@ -47,8 +47,7 @@ int psc_serial_init (void)
 	/* write to CSR: RX/TX baud rate from timers */
 	psc->sr_csr = 0xdd000000;
 
-	psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR1_RX_RTS;
-	psc->mr1_2 = PSC_MR2_STOP_BITS_1 | PSC_MR2_TX_CTS;
+	psc->mr1_2 = PSC_MR1_BITS_CHAR_8 | PSC_MR1_NO_PARITY | PSC_MR2_STOP_BITS_1; 
 
 	/* Setting up BaudRate */
 	counter = ((gd->bus_clk / gd->baudrate)) >> 5;
@@ -77,7 +76,7 @@ void psc_serial_putc (const char c)
 		serial_putc ('\r');
 
 	/* Wait for last character to go. */
-	while (!(psc->sr_csr & PSC_SR_TXEMT));
+	while (!(psc->sr_csr & PSC_SR_TXRDY));
 
 	psc->xmitbuf[0] = c;
 }