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authorwdenk <wdenk>2005-05-16 15:23:22 +0000
committerwdenk <wdenk>2005-05-16 15:23:22 +0000
commit7680c140af9cac62c834f30d2d3c1479723ced69 (patch)
tree5f315fe7db8e19fabd9034f6f8e44a0ba440b207 /cpu/mpc8220
parentc01766307c1140955b71a9a842d742ee6478bd24 (diff)
downloadu-boot-imx-7680c140af9cac62c834f30d2d3c1479723ced69.zip
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Add PCI support for Sorcery board.
Code cleanup (especially Sorcery / Alaska / Yukon serial driver).
Diffstat (limited to 'cpu/mpc8220')
-rw-r--r--cpu/mpc8220/Makefile4
-rw-r--r--cpu/mpc8220/cpu_init.c4
-rw-r--r--cpu/mpc8220/dramSetup.c7
-rw-r--r--cpu/mpc8220/fec.c7
-rw-r--r--cpu/mpc8220/pci.c191
-rw-r--r--cpu/mpc8220/serial.c131
-rw-r--r--cpu/mpc8220/uart.c12
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;