[MIPS] TXx9: Reorganize PCI code
Split out PCIC dependent code and SoC dependent code from board dependent
code. Now TX4927 PCIC code is independent from TX4927/TX4938 SoC code.
Also fix some build problems on CONFIG_PCI=n.
As a bonus, "FPCIB0 Backplane Support" is available for all TX39/TX49 boards
and PCI66 support is available for all TX49 boards.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index 98d1034..b8cdb19 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -1,6 +1,12 @@
config TOSHIBA_FPCIB0
bool "FPCIB0 Backplane Support"
- depends on TOSHIBA_RBTX4927
+ depends on PCI && (SYS_HAS_CPU_TX49XX || SYS_HAS_CPU_TX39XX)
+ select I8259
+
+config PICMG_PCI_BACKPLANE_DEFAULT
+ bool "Support for PICMG PCI Backplane"
+ depends on PCI && (SYS_HAS_CPU_TX49XX || SYS_HAS_CPU_TX39XX)
+ default y if !TOSHIBA_FPCIB0
if TOSHIBA_RBTX4938
@@ -26,3 +32,6 @@
Select this option if you need to use NAND boot.
endif
+
+config PCI_TX4927
+ bool
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
index 8cb4a7e..b80b6e0 100644
--- a/arch/mips/txx9/generic/Makefile
+++ b/arch/mips/txx9/generic/Makefile
@@ -2,6 +2,8 @@
# Makefile for common code for TXx9 based systems
#
+obj-y += setup.o
+obj-$(CONFIG_PCI) += pci.o
obj-$(CONFIG_TOSHIBA_RBTX4927) += mem_tx4927.o irq_tx4927.o
obj-$(CONFIG_TOSHIBA_RBTX4938) += mem_tx4938.o irq_tx4938.o
obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
new file mode 100644
index 0000000..8173faa
--- /dev/null
+++ b/arch/mips/txx9/generic/pci.c
@@ -0,0 +1,377 @@
+/*
+ * linux/arch/mips/txx9/pci.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4927/setup.c,
+ * linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001-2005 MontaVista Software Inc.
+ * Copyright (C) 1996, 97, 2001, 04 Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <asm/txx9/pci.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <linux/interrupt.h>
+#include <asm/i8259.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+#endif
+
+static int __init
+early_read_config_word(struct pci_controller *hose,
+ int top_bus, int bus, int devfn, int offset, u16 *value)
+{
+ struct pci_dev fake_dev;
+ struct pci_bus fake_bus;
+
+ fake_dev.bus = &fake_bus;
+ fake_dev.sysdata = hose;
+ fake_dev.devfn = devfn;
+ fake_bus.number = bus;
+ fake_bus.sysdata = hose;
+ fake_bus.ops = hose->pci_ops;
+
+ if (bus != top_bus)
+ /* Fake a parent bus structure. */
+ fake_bus.parent = &fake_bus;
+ else
+ fake_bus.parent = NULL;
+
+ return pci_read_config_word(&fake_dev, offset, value);
+}
+
+int __init txx9_pci66_check(struct pci_controller *hose, int top_bus,
+ int current_bus)
+{
+ u32 pci_devfn;
+ unsigned short vid;
+ int cap66 = -1;
+ u16 stat;
+
+ /* It seems SLC90E66 needs some time after PCI reset... */
+ mdelay(80);
+
+ printk(KERN_INFO "PCI: Checking 66MHz capabilities...\n");
+
+ for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
+ if (PCI_FUNC(pci_devfn))
+ continue;
+ if (early_read_config_word(hose, top_bus, current_bus,
+ pci_devfn, PCI_VENDOR_ID, &vid) !=
+ PCIBIOS_SUCCESSFUL)
+ continue;
+ if (vid == 0xffff)
+ continue;
+
+ /* check 66MHz capability */
+ if (cap66 < 0)
+ cap66 = 1;
+ if (cap66) {
+ early_read_config_word(hose, top_bus, current_bus,
+ pci_devfn, PCI_STATUS, &stat);
+ if (!(stat & PCI_STATUS_66MHZ)) {
+ printk(KERN_DEBUG
+ "PCI: %02x:%02x not 66MHz capable.\n",
+ current_bus, pci_devfn);
+ cap66 = 0;
+ break;
+ }
+ }
+ }
+ return cap66 > 0;
+}
+
+static struct resource primary_pci_mem_res[2] = {
+ { .name = "PCI MEM" },
+ { .name = "PCI MMIO" },
+};
+static struct resource primary_pci_io_res = { .name = "PCI IO" };
+struct pci_controller txx9_primary_pcic = {
+ .mem_resource = &primary_pci_mem_res[0],
+ .io_resource = &primary_pci_io_res,
+};
+
+#ifdef CONFIG_64BIT
+int txx9_pci_mem_high __initdata = 1;
+#else
+int txx9_pci_mem_high __initdata;
+#endif
+
+/*
+ * allocate pci_controller and resources.
+ * mem_base, io_base: physical addresss. 0 for auto assignment.
+ * mem_size and io_size means max size on auto assignment.
+ * pcic must be &txx9_primary_pcic or NULL.
+ */
+struct pci_controller *__init
+txx9_alloc_pci_controller(struct pci_controller *pcic,
+ unsigned long mem_base, unsigned long mem_size,
+ unsigned long io_base, unsigned long io_size)
+{
+ struct pcic {
+ struct pci_controller c;
+ struct resource r_mem[2];
+ struct resource r_io;
+ } *new = NULL;
+ int min_size = 0x10000;
+
+ if (!pcic) {
+ new = kzalloc(sizeof(*new), GFP_KERNEL);
+ if (!new)
+ return NULL;
+ new->r_mem[0].name = "PCI mem";
+ new->r_mem[1].name = "PCI mmio";
+ new->r_io.name = "PCI io";
+ new->c.mem_resource = new->r_mem;
+ new->c.io_resource = &new->r_io;
+ pcic = &new->c;
+ } else
+ BUG_ON(pcic != &txx9_primary_pcic);
+ pcic->io_resource->flags = IORESOURCE_IO;
+
+ /*
+ * for auto assignment, first search a (big) region for PCI
+ * MEM, then search a region for PCI IO.
+ */
+ if (mem_base) {
+ pcic->mem_resource[0].start = mem_base;
+ pcic->mem_resource[0].end = mem_base + mem_size - 1;
+ if (request_resource(&iomem_resource, &pcic->mem_resource[0]))
+ goto free_and_exit;
+ } else {
+ unsigned long min = 0, max = 0x20000000; /* low 512MB */
+ if (!mem_size) {
+ /* default size for auto assignment */
+ if (txx9_pci_mem_high)
+ mem_size = 0x20000000; /* mem:512M(max) */
+ else
+ mem_size = 0x08000000; /* mem:128M(max) */
+ }
+ if (txx9_pci_mem_high) {
+ min = 0x20000000;
+ max = 0xe0000000;
+ }
+ /* search free region for PCI MEM */
+ for (; mem_size >= min_size; mem_size /= 2) {
+ if (allocate_resource(&iomem_resource,
+ &pcic->mem_resource[0],
+ mem_size, min, max,
+ mem_size, NULL, NULL) == 0)
+ break;
+ }
+ if (mem_size < min_size)
+ goto free_and_exit;
+ }
+
+ pcic->mem_resource[1].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+ if (io_base) {
+ pcic->mem_resource[1].start = io_base;
+ pcic->mem_resource[1].end = io_base + io_size - 1;
+ if (request_resource(&iomem_resource, &pcic->mem_resource[1]))
+ goto release_and_exit;
+ } else {
+ if (!io_size)
+ /* default size for auto assignment */
+ io_size = 0x01000000; /* io:16M(max) */
+ /* search free region for PCI IO in low 512MB */
+ for (; io_size >= min_size; io_size /= 2) {
+ if (allocate_resource(&iomem_resource,
+ &pcic->mem_resource[1],
+ io_size, 0, 0x20000000,
+ io_size, NULL, NULL) == 0)
+ break;
+ }
+ if (io_size < min_size)
+ goto release_and_exit;
+ io_base = pcic->mem_resource[1].start;
+ }
+
+ pcic->mem_resource[0].flags = IORESOURCE_MEM;
+ if (pcic == &txx9_primary_pcic &&
+ mips_io_port_base == (unsigned long)-1) {
+ /* map ioport 0 to PCI I/O space address 0 */
+ set_io_port_base(IO_BASE + pcic->mem_resource[1].start);
+ pcic->io_resource->start = 0;
+ pcic->io_offset = 0; /* busaddr == ioaddr */
+ pcic->io_map_base = IO_BASE + pcic->mem_resource[1].start;
+ } else {
+ /* physaddr to ioaddr */
+ pcic->io_resource->start =
+ io_base - (mips_io_port_base - IO_BASE);
+ pcic->io_offset = io_base - (mips_io_port_base - IO_BASE);
+ pcic->io_map_base = mips_io_port_base;
+ }
+ pcic->io_resource->end = pcic->io_resource->start + io_size - 1;
+
+ pcic->mem_offset = 0; /* busaddr == physaddr */
+
+ printk(KERN_INFO "PCI: IO 0x%08llx-0x%08llx MEM 0x%08llx-0x%08llx\n",
+ (unsigned long long)pcic->mem_resource[1].start,
+ (unsigned long long)pcic->mem_resource[1].end,
+ (unsigned long long)pcic->mem_resource[0].start,
+ (unsigned long long)pcic->mem_resource[0].end);
+
+ /* register_pci_controller() will request MEM resource */
+ release_resource(&pcic->mem_resource[0]);
+ return pcic;
+ release_and_exit:
+ release_resource(&pcic->mem_resource[0]);
+ free_and_exit:
+ kfree(new);
+ printk(KERN_ERR "PCI: Failed to allocate resources.\n");
+ return NULL;
+}
+
+static int __init
+txx9_arch_pci_init(void)
+{
+ PCIBIOS_MIN_IO = 0x8000; /* reseve legacy I/O space */
+ return 0;
+}
+arch_initcall(txx9_arch_pci_init);
+
+/* IRQ/IDSEL mapping */
+int txx9_pci_option =
+#ifdef CONFIG_PICMG_PCI_BACKPLANE_DEFAULT
+ TXX9_PCI_OPT_PICMG |
+#endif
+ TXX9_PCI_OPT_CLK_AUTO;
+
+enum txx9_pci_err_action txx9_pci_err_action = TXX9_PCI_ERR_REPORT;
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static irqreturn_t i8259_interrupt(int irq, void *dev_id)
+{
+ int isairq;
+
+ isairq = i8259_irq();
+ if (unlikely(isairq <= I8259A_IRQ_BASE))
+ return IRQ_NONE;
+ generic_handle_irq(isairq);
+ return IRQ_HANDLED;
+}
+
+static int __init
+txx9_i8259_irq_setup(int irq)
+{
+ int err;
+
+ init_i8259_irqs();
+ err = request_irq(irq, &i8259_interrupt, IRQF_DISABLED|IRQF_SHARED,
+ "cascade(i8259)", (void *)(long)irq);
+ if (!err)
+ printk(KERN_INFO "PCI-ISA bridge PIC (irq %d)\n", irq);
+ return err;
+}
+
+static void __init quirk_slc90e66_bridge(struct pci_dev *dev)
+{
+ int irq; /* PCI/ISA Bridge interrupt */
+ u8 reg_64;
+ u32 reg_b0;
+ u8 reg_e1;
+ irq = pcibios_map_irq(dev, PCI_SLOT(dev->devfn), 1); /* INTA */
+ if (!irq)
+ return;
+ txx9_i8259_irq_setup(irq);
+ pci_read_config_byte(dev, 0x64, ®_64);
+ pci_read_config_dword(dev, 0xb0, ®_b0);
+ pci_read_config_byte(dev, 0xe1, ®_e1);
+ /* serial irq control */
+ reg_64 = 0xd0;
+ /* serial irq pin */
+ reg_b0 |= 0x00010000;
+ /* ide irq on isa14 */
+ reg_e1 &= 0xf0;
+ reg_e1 |= 0x0d;
+ pci_write_config_byte(dev, 0x64, reg_64);
+ pci_write_config_dword(dev, 0xb0, reg_b0);
+ pci_write_config_byte(dev, 0xe1, reg_e1);
+
+ smsc_fdc37m81x_init(0x3f0);
+ smsc_fdc37m81x_config_beg();
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+ SMSC_FDC37M81X_KBD);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+ smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+ 1);
+ smsc_fdc37m81x_config_end();
+}
+
+static void quirk_slc90e66_ide(struct pci_dev *dev)
+{
+ unsigned char dat;
+ int regs[2] = {0x41, 0x43};
+ int i;
+
+ /* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 14);
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &dat);
+ printk(KERN_INFO "PCI: %s: IRQ %02x", pci_name(dev), dat);
+ /* enable SMSC SLC90E66 IDE */
+ for (i = 0; i < ARRAY_SIZE(regs); i++) {
+ pci_read_config_byte(dev, regs[i], &dat);
+ pci_write_config_byte(dev, regs[i], dat | 0x80);
+ pci_read_config_byte(dev, regs[i], &dat);
+ printk(KERN_CONT " IDETIM%d %02x", i, dat);
+ }
+ pci_read_config_byte(dev, 0x5c, &dat);
+ /*
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ *
+ * This line of code is intended to provide the user with a work
+ * around solution to the anomalies cited in SMSC's anomaly sheet
+ * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+ *
+ * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+ */
+ dat |= 0x01;
+ pci_write_config_byte(dev, regs[i], dat);
+ pci_read_config_byte(dev, 0x5c, &dat);
+ printk(KERN_CONT " REG5C %02x", dat);
+ printk(KERN_CONT "\n");
+}
+#endif /* CONFIG_TOSHIBA_FPCIB0 */
+
+static void final_fixup(struct pci_dev *dev)
+{
+ unsigned char bist;
+
+ /* Do build-in self test */
+ if (pci_read_config_byte(dev, PCI_BIST, &bist) == PCIBIOS_SUCCESSFUL &&
+ (bist & PCI_BIST_CAPABLE)) {
+ unsigned long timeout;
+ pci_set_power_state(dev, PCI_D0);
+ printk(KERN_INFO "PCI: %s BIST...", pci_name(dev));
+ pci_write_config_byte(dev, PCI_BIST, PCI_BIST_START);
+ timeout = jiffies + HZ * 2; /* timeout after 2 sec */
+ do {
+ pci_read_config_byte(dev, PCI_BIST, &bist);
+ if (time_after(jiffies, timeout))
+ break;
+ } while (bist & PCI_BIST_START);
+ if (bist & (PCI_BIST_CODE_MASK | PCI_BIST_START))
+ printk(KERN_CONT "failed. (0x%x)\n", bist);
+ else
+ printk(KERN_CONT "OK.\n");
+ }
+}
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+ quirk_slc90e66_bridge);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+ quirk_slc90e66_ide);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+ quirk_slc90e66_ide);
+#endif
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 0000000..46a6311
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,51 @@
+/*
+ * linux/arch/mips/txx9/generic/setup.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ * and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/txx9/generic.h>
+
+/* EBUSC settings of TX4927, etc. */
+struct resource txx9_ce_res[8];
+static char txx9_ce_res_name[8][4]; /* "CEn" */
+
+/* pcode, internal register */
+char txx9_pcode_str[8];
+static struct resource txx9_reg_res = {
+ .name = txx9_pcode_str,
+ .flags = IORESOURCE_MEM,
+};
+void __init
+txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
+ sprintf(txx9_ce_res_name[i], "CE%d", i);
+ txx9_ce_res[i].flags = IORESOURCE_MEM;
+ txx9_ce_res[i].name = txx9_ce_res_name[i];
+ }
+
+ sprintf(txx9_pcode_str, "TX%x", pcode);
+ if (base) {
+ txx9_reg_res.start = base & 0xfffffffffULL;
+ txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
+ request_resource(&iomem_resource, &txx9_reg_res);
+ }
+}
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c
index 85e1daf..b97d22e 100644
--- a/arch/mips/txx9/jmr3927/irq.c
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -109,6 +109,7 @@
.name = "IOC",
};
+#ifdef CONFIG_PCI
static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
{
printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
@@ -122,6 +123,7 @@
.mask = CPU_MASK_NONE,
.name = "PCI error",
};
+#endif
static void __init jmr3927_irq_init(void);
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
index 41e0f3b..baa8c8d 100644
--- a/arch/mips/txx9/jmr3927/setup.c
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -30,7 +30,6 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/types.h>
-#include <linux/pci.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/pm.h>
@@ -44,6 +43,7 @@
#include <asm/txx9tmr.h>
#include <asm/txx9pio.h>
#include <asm/reboot.h>
+#include <asm/txx9/pci.h>
#include <asm/txx9/jmr3927.h>
#include <asm/mipsregs.h>
@@ -96,8 +96,6 @@
extern char * __init prom_getcmdline(void);
static void jmr3927_board_init(void);
-extern struct resource pci_io_resource;
-extern struct resource pci_mem_resource;
void __init plat_mem_setup(void)
{
@@ -112,8 +110,8 @@
/*
* IO/MEM resources.
*/
- ioport_resource.start = pci_io_resource.start;
- ioport_resource.end = pci_io_resource.end;
+ ioport_resource.start = 0;
+ ioport_resource.end = 0xffffffff;
iomem_resource.start = 0;
iomem_resource.end = 0xffffffff;
@@ -191,9 +189,33 @@
static void tx3927_setup(void);
+static void __init jmr3927_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+ int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
+ struct pci_controller *c;
+
+ c = txx9_alloc_pci_controller(&txx9_primary_pcic,
+ JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
+ JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
+ register_pci_controller(c);
+ if (!extarb) {
+ /* Reset PCI Bus */
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+ udelay(100);
+ jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+ JMR3927_IOC_RESET_ADDR);
+ udelay(100);
+ jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+ }
+ tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
+#endif /* CONFIG_PCI */
+}
+
static void __init jmr3927_board_init(void)
{
tx3927_setup();
+ jmr3927_pci_setup();
/* SIO0 DTR on */
jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
@@ -210,14 +232,6 @@
static void __init tx3927_setup(void)
{
int i;
-#ifdef CONFIG_PCI
- unsigned long mips_pci_io_base = JMR3927_PCIIO;
- unsigned long mips_pci_io_size = JMR3927_PCIIO_SIZE;
- unsigned long mips_pci_mem_base = JMR3927_PCIMEM;
- unsigned long mips_pci_mem_size = JMR3927_PCIMEM_SIZE;
- /* for legacy I/O, PCI I/O PCI Bus address must be 0 */
- unsigned long mips_pci_io_pciaddr = 0;
-#endif
/* SDRAMC are configured by PROM */
@@ -272,74 +286,6 @@
tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
#endif
-#ifdef CONFIG_PCI
- /* PCIC */
- printk("TX3927 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:",
- tx3927_pcicptr->did, tx3927_pcicptr->vid,
- tx3927_pcicptr->rid);
- if (!(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB)) {
- printk("External\n");
- /* XXX */
- } else {
- printk("Internal\n");
-
- /* Reset PCI Bus */
- jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
- udelay(100);
- jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
- JMR3927_IOC_RESET_ADDR);
- udelay(100);
- jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
-
-
- /* Disable External PCI Config. Access */
- tx3927_pcicptr->lbc = TX3927_PCIC_LBC_EPCAD;
-#ifdef __BIG_ENDIAN
- tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_IBSE |
- TX3927_PCIC_LBC_TIBSE |
- TX3927_PCIC_LBC_TMFBSE | TX3927_PCIC_LBC_MSDSE;
-#endif
- /* LB->PCI mappings */
- tx3927_pcicptr->iomas = ~(mips_pci_io_size - 1);
- tx3927_pcicptr->ilbioma = mips_pci_io_base;
- tx3927_pcicptr->ipbioma = mips_pci_io_pciaddr;
- tx3927_pcicptr->mmas = ~(mips_pci_mem_size - 1);
- tx3927_pcicptr->ilbmma = mips_pci_mem_base;
- tx3927_pcicptr->ipbmma = mips_pci_mem_base;
- /* PCI->LB mappings */
- tx3927_pcicptr->iobas = 0xffffffff;
- tx3927_pcicptr->ioba = 0;
- tx3927_pcicptr->tlbioma = 0;
- tx3927_pcicptr->mbas = ~(mips_pci_mem_size - 1);
- tx3927_pcicptr->mba = 0;
- tx3927_pcicptr->tlbmma = 0;
- /* Enable Direct mapping Address Space Decoder */
- tx3927_pcicptr->lbc |= TX3927_PCIC_LBC_ILMDE | TX3927_PCIC_LBC_ILIDE;
-
- /* Clear All Local Bus Status */
- tx3927_pcicptr->lbstat = TX3927_PCIC_LBIM_ALL;
- /* Enable All Local Bus Interrupts */
- tx3927_pcicptr->lbim = TX3927_PCIC_LBIM_ALL;
- /* Clear All PCI Status Error */
- tx3927_pcicptr->pcistat = TX3927_PCIC_PCISTATIM_ALL;
- /* Enable All PCI Status Error Interrupts */
- tx3927_pcicptr->pcistatim = TX3927_PCIC_PCISTATIM_ALL;
-
- /* PCIC Int => IRC IRQ10 */
- tx3927_pcicptr->il = TX3927_IR_PCI;
- /* Target Control (per errata) */
- tx3927_pcicptr->tc = TX3927_PCIC_TC_OF8E | TX3927_PCIC_TC_IF8E;
-
- /* Enable Bus Arbiter */
- tx3927_pcicptr->pbapmc = TX3927_PCIC_PBAPMC_PBAEN;
-
- tx3927_pcicptr->pcicmd = PCI_COMMAND_MASTER |
- PCI_COMMAND_MEMORY |
- PCI_COMMAND_IO |
- PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
- }
-#endif /* CONFIG_PCI */
-
/* PIO */
/* PIO[15:12] connected to LEDs */
__raw_writel(0x0000f000, &tx3927_pioptr->dir);
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c
index 936e50e..bef1447 100644
--- a/arch/mips/txx9/rbtx4927/irq.c
+++ b/arch/mips/txx9/rbtx4927/irq.c
@@ -111,9 +111,6 @@
#include <linux/types.h>
#include <linux/interrupt.h>
#include <asm/io.h>
-#ifdef CONFIG_TOSHIBA_FPCIB0
-#include <asm/i8259.h>
-#endif
#include <asm/txx9/rbtx4927.h>
#define TOSHIBA_RBTX4927_IRQ_IOC_RAW_BEG 0
@@ -125,8 +122,6 @@
#define TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC TX4927_IRQ_NEST_EXT_ON_PIC
#define TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC (TOSHIBA_RBTX4927_IRQ_IOC_BEG+2)
-extern int tx4927_using_backplane;
-
static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
@@ -146,17 +141,8 @@
u8 level3;
level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
- if (level3) {
+ if (level3)
sw_irq = TOSHIBA_RBTX4927_IRQ_IOC_BEG + fls(level3) - 1;
-#ifdef CONFIG_TOSHIBA_FPCIB0
- if (sw_irq == TOSHIBA_RBTX4927_IRQ_NEST_ISA_ON_IOC &&
- tx4927_using_backplane) {
- int irq = i8259_irq();
- if (irq >= 0)
- sw_irq = irq;
- }
-#endif
- }
return (sw_irq);
}
@@ -205,10 +191,6 @@
tx4927_irq_init();
toshiba_rbtx4927_irq_ioc_init();
-#ifdef CONFIG_TOSHIBA_FPCIB0
- if (tx4927_using_backplane)
- init_i8259_irqs();
-#endif
/* Onboard 10M Ether: High Active */
set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
}
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
index df1b6e9..86b870a 100644
--- a/arch/mips/txx9/rbtx4927/setup.c
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -47,10 +47,10 @@
#include <linux/types.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
-#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/delay.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
@@ -58,10 +58,10 @@
#include <asm/reboot.h>
#include <asm/time.h>
#include <asm/txx9tmr.h>
-#ifdef CONFIG_TOSHIBA_FPCIB0
-#include <asm/txx9/smsc_fdc37m81x.h>
-#endif
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4927.h>
+#include <asm/txx9/tx4938.h> /* for TX4937 */
#ifdef CONFIG_SERIAL_TXX9
#include <linux/serial_core.h>
#endif
@@ -70,356 +70,116 @@
extern void toshiba_rbtx4927_restart(char *command);
extern void toshiba_rbtx4927_halt(void);
extern void toshiba_rbtx4927_power_off(void);
-
-int tx4927_using_backplane = 0;
-
extern void toshiba_rbtx4927_irq_setup(void);
char *prom_getcmdline(void);
-#ifdef CONFIG_PCI
-#undef TX4927_SUPPORT_COMMAND_IO
-#undef TX4927_SUPPORT_PCI_66
-int tx4927_cpu_clock = 100000000; /* 100MHz */
-unsigned long mips_pci_io_base;
-unsigned long mips_pci_io_size;
-unsigned long mips_pci_mem_base;
-unsigned long mips_pci_mem_size;
-/* for legacy I/O, PCI I/O PCI Bus address must be 0 */
-unsigned long mips_pci_io_pciaddr = 0;
-unsigned long mips_memory_upper;
static int tx4927_ccfg_toeon = 1;
-static int tx4927_pcic_trdyto = 0; /* default: disabled */
-unsigned long tx4927_ce_base[8];
-int tx4927_pci66 = 0; /* 0:auto */
-#endif
char *toshiba_name = "";
#ifdef CONFIG_PCI
-extern struct pci_controller tx4927_controller;
-
-static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
- int top_bus, int busnr, int devfn)
+static void __init tx4927_pci_setup(void)
{
- static struct pci_dev dev;
- static struct pci_bus bus;
+ int extarb = !(__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB);
+ struct pci_controller *c = &txx9_primary_pcic;
- dev.sysdata = (void *)hose;
- dev.devfn = devfn;
- bus.number = busnr;
- bus.ops = hose->pci_ops;
- bus.parent = NULL;
- dev.bus = &bus;
+ register_pci_controller(c);
- return &dev;
-}
+ if (__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66)
+ txx9_pci_option =
+ (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+ TXX9_PCI_OPT_CLK_66; /* already configured */
-#define EARLY_PCI_OP(rw, size, type) \
-static int early_##rw##_config_##size(struct pci_controller *hose, \
- int top_bus, int bus, int devfn, int offset, type value) \
-{ \
- return pci_##rw##_config_##size( \
- fake_pci_dev(hose, top_bus, bus, devfn), \
- offset, value); \
-}
+ /* Reset PCI Bus */
+ writeb(1, rbtx4927_pcireset_addr);
+ /* Reset PCIC */
+ txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_66)
+ tx4927_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+ writeb(0, rbtx4927_pcireset_addr);
+ iob();
-EARLY_PCI_OP(read, byte, u8 *)
-EARLY_PCI_OP(read, dword, u32 *)
-EARLY_PCI_OP(write, byte, u8)
-EARLY_PCI_OP(write, dword, u32)
-
-static int __init tx4927_pcibios_init(void)
-{
- unsigned int id;
- u32 pci_devfn;
- int devfn_start = 0;
- int devfn_stop = 0xff;
- int busno = 0; /* One bus on the Toshiba */
- struct pci_controller *hose = &tx4927_controller;
-
- for (pci_devfn = devfn_start; pci_devfn < devfn_stop; pci_devfn++) {
- early_read_config_dword(hose, busno, busno, pci_devfn,
- PCI_VENDOR_ID, &id);
-
- if (id == 0xffffffff) {
- continue;
- }
-
- if (id == 0x94601055) {
- u8 v08_64;
- u32 v32_b0;
- u8 v08_e1;
-
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x64, &v08_64);
- early_read_config_dword(hose, busno, busno,
- pci_devfn, 0xb0, &v32_b0);
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0xe1, &v08_e1);
-
- /* serial irq control */
- v08_64 = 0xd0;
-
- /* serial irq pin */
- v32_b0 |= 0x00010000;
-
- /* ide irq on isa14 */
- v08_e1 &= 0xf0;
- v08_e1 |= 0x0d;
-
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x64, v08_64);
- early_write_config_dword(hose, busno, busno,
- pci_devfn, 0xb0, v32_b0);
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0xe1, v08_e1);
- }
-
- if (id == 0x91301055) {
- u8 v08_04;
- u8 v08_09;
- u8 v08_41;
- u8 v08_43;
- u8 v08_5c;
-
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x04, &v08_04);
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x09, &v08_09);
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x41, &v08_41);
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x43, &v08_43);
- early_read_config_byte(hose, busno, busno,
- pci_devfn, 0x5c, &v08_5c);
-
- /* enable ide master/io */
- v08_04 |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
-
- /* enable ide native mode */
- v08_09 |= 0x05;
-
- /* enable primary ide */
- v08_41 |= 0x80;
-
- /* enable secondary ide */
- v08_43 |= 0x80;
-
- /*
- * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
- *
- * This line of code is intended to provide the user with a work
- * around solution to the anomalies cited in SMSC's anomaly sheet
- * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
- *
- * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
- */
- v08_5c |= 0x01;
-
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x5c, v08_5c);
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x04, v08_04);
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x09, v08_09);
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x41, v08_41);
- early_write_config_byte(hose, busno, busno,
- pci_devfn, 0x43, v08_43);
- }
-
+ tx4927_report_pciclk();
+ tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_AUTO &&
+ txx9_pci66_check(c, 0, 0)) {
+ /* Reset PCI Bus */
+ writeb(1, rbtx4927_pcireset_addr);
+ /* Reset PCIC */
+ txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+ tx4927_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+ writeb(0, rbtx4927_pcireset_addr);
+ iob();
+ /* Reinitialize PCIC */
+ tx4927_report_pciclk();
+ tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
}
+}
- register_pci_controller(&tx4927_controller);
+static void __init tx4937_pci_setup(void)
+{
+ int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+ struct pci_controller *c = &txx9_primary_pcic;
+
+ register_pci_controller(c);
+
+ if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+ txx9_pci_option =
+ (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+ TXX9_PCI_OPT_CLK_66; /* already configured */
+
+ /* Reset PCI Bus */
+ writeb(1, rbtx4927_pcireset_addr);
+ /* Reset PCIC */
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_66)
+ tx4938_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+ writeb(0, rbtx4927_pcireset_addr);
+ iob();
+
+ tx4938_report_pciclk();
+ tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_AUTO &&
+ txx9_pci66_check(c, 0, 0)) {
+ /* Reset PCI Bus */
+ writeb(1, rbtx4927_pcireset_addr);
+ /* Reset PCIC */
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+ tx4938_pciclk66_setup();
+ mdelay(10);
+ /* clear PCIC reset */
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+ writeb(0, rbtx4927_pcireset_addr);
+ iob();
+ /* Reinitialize PCIC */
+ tx4938_report_pciclk();
+ tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+ }
+}
+
+static int __init rbtx4927_arch_init(void)
+{
+ if (mips_machtype == MACH_TOSHIBA_RBTX4937)
+ tx4937_pci_setup();
+ else
+ tx4927_pci_setup();
return 0;
}
-
-arch_initcall(tx4927_pcibios_init);
-
-extern struct resource pci_io_resource;
-extern struct resource pci_mem_resource;
-
-void __init tx4927_pci_setup(void)
-{
- static int called = 0;
- extern unsigned int tx4927_get_mem_size(void);
-
- mips_memory_upper = tx4927_get_mem_size() << 20;
- mips_memory_upper += KSEG0;
- mips_pci_io_base = TX4927_PCIIO;
- mips_pci_io_size = TX4927_PCIIO_SIZE;
- mips_pci_mem_base = TX4927_PCIMEM;
- mips_pci_mem_size = TX4927_PCIMEM_SIZE;
-
- if (!called) {
- printk
- ("%s PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
- toshiba_name,
- (unsigned short) (tx4927_pcicptr->pciid >> 16),
- (unsigned short) (tx4927_pcicptr->pciid & 0xffff),
- (unsigned short) (tx4927_pcicptr->pciccrev & 0xff),
- (!(tx4927_ccfgptr->
- ccfg & TX4927_CCFG_PCIXARB)) ? "External" :
- "Internal");
- called = 1;
- }
- printk("%s PCIC --%s PCICLK:", toshiba_name,
- (tx4927_ccfgptr->ccfg & TX4927_CCFG_PCI66) ? " PCI66" : "");
- if (tx4927_ccfgptr->pcfg & TX4927_PCFG_PCICLKEN_ALL) {
- int pciclk = 0;
- if (mips_machtype == MACH_TOSHIBA_RBTX4937)
- switch ((unsigned long) tx4927_ccfgptr->
- ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
- case TX4937_CCFG_PCIDIVMODE_4:
- pciclk = tx4927_cpu_clock / 4;
- break;
- case TX4937_CCFG_PCIDIVMODE_4_5:
- pciclk = tx4927_cpu_clock * 2 / 9;
- break;
- case TX4937_CCFG_PCIDIVMODE_5:
- pciclk = tx4927_cpu_clock / 5;
- break;
- case TX4937_CCFG_PCIDIVMODE_5_5:
- pciclk = tx4927_cpu_clock * 2 / 11;
- break;
- case TX4937_CCFG_PCIDIVMODE_8:
- pciclk = tx4927_cpu_clock / 8;
- break;
- case TX4937_CCFG_PCIDIVMODE_9:
- pciclk = tx4927_cpu_clock / 9;
- break;
- case TX4937_CCFG_PCIDIVMODE_10:
- pciclk = tx4927_cpu_clock / 10;
- break;
- case TX4937_CCFG_PCIDIVMODE_11:
- pciclk = tx4927_cpu_clock / 11;
- break;
- }
-
- else
- switch ((unsigned long) tx4927_ccfgptr->
- ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
- case TX4927_CCFG_PCIDIVMODE_2_5:
- pciclk = tx4927_cpu_clock * 2 / 5;
- break;
- case TX4927_CCFG_PCIDIVMODE_3:
- pciclk = tx4927_cpu_clock / 3;
- break;
- case TX4927_CCFG_PCIDIVMODE_5:
- pciclk = tx4927_cpu_clock / 5;
- break;
- case TX4927_CCFG_PCIDIVMODE_6:
- pciclk = tx4927_cpu_clock / 6;
- break;
- }
-
- printk("Internal(%dMHz)", pciclk / 1000000);
- } else
- printk("External");
- printk("\n");
-
- /* GB->PCI mappings */
- tx4927_pcicptr->g2piomask = (mips_pci_io_size - 1) >> 4;
- tx4927_pcicptr->g2piogbase = mips_pci_io_base |
-#ifdef __BIG_ENDIAN
- TX4927_PCIC_G2PIOGBASE_ECHG
-#else
- TX4927_PCIC_G2PIOGBASE_BSDIS
-#endif
- ;
-
- tx4927_pcicptr->g2piopbase = 0;
-
- tx4927_pcicptr->g2pmmask[0] = (mips_pci_mem_size - 1) >> 4;
- tx4927_pcicptr->g2pmgbase[0] = mips_pci_mem_base |
-#ifdef __BIG_ENDIAN
- TX4927_PCIC_G2PMnGBASE_ECHG
-#else
- TX4927_PCIC_G2PMnGBASE_BSDIS
-#endif
- ;
- tx4927_pcicptr->g2pmpbase[0] = mips_pci_mem_base;
-
- tx4927_pcicptr->g2pmmask[1] = 0;
- tx4927_pcicptr->g2pmgbase[1] = 0;
- tx4927_pcicptr->g2pmpbase[1] = 0;
- tx4927_pcicptr->g2pmmask[2] = 0;
- tx4927_pcicptr->g2pmgbase[2] = 0;
- tx4927_pcicptr->g2pmpbase[2] = 0;
-
-
- /* PCI->GB mappings (I/O 256B) */
- tx4927_pcicptr->p2giopbase = 0; /* 256B */
-
- /* PCI->GB mappings (MEM 512MB) M0 gets all of memory */
- tx4927_pcicptr->p2gm0plbase = 0;
- tx4927_pcicptr->p2gm0pubase = 0;
- tx4927_pcicptr->p2gmgbase[0] = 0 | TX4927_PCIC_P2GMnGBASE_TMEMEN |
-#ifdef __BIG_ENDIAN
- TX4927_PCIC_P2GMnGBASE_TECHG
-#else
- TX4927_PCIC_P2GMnGBASE_TBSDIS
-#endif
- ;
-
- /* PCI->GB mappings (MEM 16MB) -not used */
- tx4927_pcicptr->p2gm1plbase = 0xffffffff;
- tx4927_pcicptr->p2gm1pubase = 0xffffffff;
- tx4927_pcicptr->p2gmgbase[1] = 0;
-
- /* PCI->GB mappings (MEM 1MB) -not used */
- tx4927_pcicptr->p2gm2pbase = 0xffffffff;
- tx4927_pcicptr->p2gmgbase[2] = 0;
-
-
- /* Enable Initiator Memory 0 Space, I/O Space, Config */
- tx4927_pcicptr->pciccfg &= TX4927_PCIC_PCICCFG_LBWC_MASK;
- tx4927_pcicptr->pciccfg |=
- TX4927_PCIC_PCICCFG_IMSE0 | TX4927_PCIC_PCICCFG_IISE |
- TX4927_PCIC_PCICCFG_ICAE | TX4927_PCIC_PCICCFG_ATR;
-
-
- /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
- tx4927_pcicptr->pcicfg1 = 0;
-
- if (tx4927_pcic_trdyto >= 0) {
- tx4927_pcicptr->g2ptocnt &= ~0xff;
- tx4927_pcicptr->g2ptocnt |= (tx4927_pcic_trdyto & 0xff);
- }
-
- /* Clear All Local Bus Status */
- tx4927_pcicptr->pcicstatus = TX4927_PCIC_PCICSTATUS_ALL;
- /* Enable All Local Bus Interrupts */
- tx4927_pcicptr->pcicmask = TX4927_PCIC_PCICSTATUS_ALL;
- /* Clear All Initiator Status */
- tx4927_pcicptr->g2pstatus = TX4927_PCIC_G2PSTATUS_ALL;
- /* Enable All Initiator Interrupts */
- tx4927_pcicptr->g2pmask = TX4927_PCIC_G2PSTATUS_ALL;
- /* Clear All PCI Status Error */
- tx4927_pcicptr->pcistatus =
- (tx4927_pcicptr->pcistatus & 0x0000ffff) |
- (TX4927_PCIC_PCISTATUS_ALL << 16);
- /* Enable All PCI Status Error Interrupts */
- tx4927_pcicptr->pcimask = TX4927_PCIC_PCISTATUS_ALL;
-
- /* PCIC Int => IRC IRQ16 */
- tx4927_pcicptr->pcicfg2 =
- (tx4927_pcicptr->pcicfg2 & 0xffffff00) | TX4927_IR_PCIC;
-
- if (!(tx4927_ccfgptr->ccfg & TX4927_CCFG_PCIXARB)) {
- /* XXX */
- } else {
- /* Reset Bus Arbiter */
- tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_RPBA;
- /* Enable Bus Arbiter */
- tx4927_pcicptr->pbacfg = TX4927_PCIC_PBACFG_PBAEN;
- }
-
- tx4927_pcicptr->pcistatus = PCI_COMMAND_MASTER |
- PCI_COMMAND_MEMORY |
- PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
-}
+arch_initcall(rbtx4927_arch_init);
#endif /* CONFIG_PCI */
static void __noreturn wait_forever(void)
@@ -479,8 +239,6 @@
cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
write_c0_config(cp0_config);
- set_io_port_base(KSEG1 + TBTX4927_ISA_IO_OFFSET);
-
ioport_resource.end = 0xffffffff;
iomem_resource.end = 0xffffffff;
@@ -492,8 +250,13 @@
txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
#ifdef CONFIG_PCI
+ txx9_alloc_pci_controller(&txx9_primary_pcic,
+ RBTX4927_PCIMEM, RBTX4927_PCIMEM_SIZE,
+ RBTX4927_PCIIO, RBTX4927_PCIIO_SIZE);
+#else
+ set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET);
+#endif
- /* PCIC */
/*
* ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
*
@@ -517,58 +280,38 @@
*
*/
if (mips_machtype == MACH_TOSHIBA_RBTX4937)
- switch ((unsigned long)tx4927_ccfgptr->
- ccfg & TX4937_CCFG_PCIDIVMODE_MASK) {
- case TX4937_CCFG_PCIDIVMODE_8:
- case TX4937_CCFG_PCIDIVMODE_4:
- tx4927_cpu_clock = 266666666; /* 266MHz */
+ switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) &
+ TX4938_CCFG_PCIDIVMODE_MASK) {
+ case TX4938_CCFG_PCIDIVMODE_8:
+ case TX4938_CCFG_PCIDIVMODE_4:
+ txx9_cpu_clock = 266666666; /* 266MHz */
break;
- case TX4937_CCFG_PCIDIVMODE_9:
- case TX4937_CCFG_PCIDIVMODE_4_5:
- tx4927_cpu_clock = 300000000; /* 300MHz */
+ case TX4938_CCFG_PCIDIVMODE_9:
+ case TX4938_CCFG_PCIDIVMODE_4_5:
+ txx9_cpu_clock = 300000000; /* 300MHz */
break;
default:
- tx4927_cpu_clock = 333333333; /* 333MHz */
+ txx9_cpu_clock = 333333333; /* 333MHz */
}
else
- switch ((unsigned long)tx4927_ccfgptr->
- ccfg & TX4927_CCFG_PCIDIVMODE_MASK) {
+ switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) &
+ TX4927_CCFG_PCIDIVMODE_MASK) {
case TX4927_CCFG_PCIDIVMODE_2_5:
case TX4927_CCFG_PCIDIVMODE_5:
- tx4927_cpu_clock = 166666666; /* 166MHz */
+ txx9_cpu_clock = 166666666; /* 166MHz */
break;
default:
- tx4927_cpu_clock = 200000000; /* 200MHz */
+ txx9_cpu_clock = 200000000; /* 200MHz */
}
+ /* change default value to udelay/mdelay take reasonable time */
+ loops_per_jiffy = txx9_cpu_clock / HZ / 2;
/* CCFG */
/* do reset on watchdog */
- tx4927_ccfgptr->ccfg |= TX4927_CCFG_WR;
+ tx4927_ccfg_set(TX4927_CCFG_WR);
/* enable Timeout BusError */
if (tx4927_ccfg_toeon)
- tx4927_ccfgptr->ccfg |= TX4927_CCFG_TOE;
-
- tx4927_pci_setup();
- if (tx4927_using_backplane == 1)
- printk("backplane board IS installed\n");
- else
- printk("No Backplane \n");
-
- /* this is on ISA bus behind PCI bus, so need PCI up first */
-#ifdef CONFIG_TOSHIBA_FPCIB0
- if (tx4927_using_backplane) {
- smsc_fdc37m81x_init(0x3f0);
- smsc_fdc37m81x_config_beg();
- smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
- SMSC_FDC37M81X_KBD);
- smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
- smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
- smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
- 1);
- smsc_fdc37m81x_config_end();
- }
-#endif
-#endif /* CONFIG_PCI */
+ tx4927_ccfg_set(TX4927_CCFG_TOE);
#ifdef CONFIG_SERIAL_TXX9
{
@@ -611,8 +354,8 @@
void __init plat_time_init(void)
{
- mips_hpt_frequency = tx4927_cpu_clock / 2;
- if (tx4927_ccfgptr->ccfg & TX4927_CCFG_TINTDIS)
+ mips_hpt_frequency = txx9_cpu_clock / 2;
+ if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
TXX9_IRQ_BASE + 17,
50000000);
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
index bbd572c..144d2ca 100644
--- a/arch/mips/txx9/rbtx4938/setup.c
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -15,7 +15,6 @@
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/console.h>
-#include <linux/pci.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
@@ -26,6 +25,8 @@
#include <asm/txx9tmr.h>
#include <asm/io.h>
#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
#include <asm/txx9/rbtx4938.h>
#ifdef CONFIG_SERIAL_TXX9
#include <linux/serial_core.h>
@@ -35,37 +36,13 @@
#include <asm/txx9pio.h>
extern char * __init prom_getcmdline(void);
-static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr);
-
/* These functions are used for rebooting or halting the machine*/
extern void rbtx4938_machine_restart(char *command);
extern void rbtx4938_machine_halt(void);
extern void rbtx4938_machine_power_off(void);
-/* clocks */
-unsigned int txx9_master_clock;
-unsigned int txx9_cpu_clock;
-unsigned int txx9_gbus_clock;
-
-unsigned long rbtx4938_ce_base[8];
-unsigned long rbtx4938_ce_size[8];
-int txboard_pci66_mode;
-static int tx4938_pcic_trdyto; /* default: disabled */
-static int tx4938_pcic_retryto; /* default: disabled */
static int tx4938_ccfg_toeon = 1;
-struct tx4938_pcic_reg *pcicptrs[4] = {
- tx4938_pcicptr /* default setting for TX4938 */
-};
-
-static struct {
- unsigned long base;
- unsigned long size;
-} phys_regions[16] __initdata;
-static int num_phys_regions __initdata;
-
-#define PHYS_REGION_MINSIZE 0x10000
-
void rbtx4938_machine_halt(void)
{
printk(KERN_NOTICE "System Halted\n");
@@ -95,473 +72,72 @@
;
}
-void __init
-txboard_add_phys_region(unsigned long base, unsigned long size)
+static void __init rbtx4938_pci_setup(void)
{
- if (num_phys_regions >= ARRAY_SIZE(phys_regions)) {
- printk("phys_region overflow\n");
- return;
- }
- phys_regions[num_phys_regions].base = base;
- phys_regions[num_phys_regions].size = size;
- num_phys_regions++;
-}
-unsigned long __init
-txboard_find_free_phys_region(unsigned long begin, unsigned long end,
- unsigned long size)
-{
- unsigned long base;
- int i;
-
- for (base = begin / size * size; base < end; base += size) {
- for (i = 0; i < num_phys_regions; i++) {
- if (phys_regions[i].size &&
- base <= phys_regions[i].base + (phys_regions[i].size - 1) &&
- base + (size - 1) >= phys_regions[i].base)
- break;
- }
- if (i == num_phys_regions)
- return base;
- }
- return 0;
-}
-unsigned long __init
-txboard_find_free_phys_region_shrink(unsigned long begin, unsigned long end,
- unsigned long *size)
-{
- unsigned long sz, base;
- for (sz = *size; sz >= PHYS_REGION_MINSIZE; sz /= 2) {
- base = txboard_find_free_phys_region(begin, end, sz);
- if (base) {
- *size = sz;
- return base;
- }
- }
- return 0;
-}
-unsigned long __init
-txboard_request_phys_region_range(unsigned long begin, unsigned long end,
- unsigned long size)
-{
- unsigned long base;
- base = txboard_find_free_phys_region(begin, end, size);
- if (base)
- txboard_add_phys_region(base, size);
- return base;
-}
-unsigned long __init
-txboard_request_phys_region(unsigned long size)
-{
- unsigned long base;
- unsigned long begin = 0, end = 0x20000000; /* search low 512MB */
- base = txboard_find_free_phys_region(begin, end, size);
- if (base)
- txboard_add_phys_region(base, size);
- return base;
-}
-unsigned long __init
-txboard_request_phys_region_shrink(unsigned long *size)
-{
- unsigned long base;
- unsigned long begin = 0, end = 0x20000000; /* search low 512MB */
- base = txboard_find_free_phys_region_shrink(begin, end, size);
- if (base)
- txboard_add_phys_region(base, *size);
- return base;
-}
-
#ifdef CONFIG_PCI
-void __init
-tx4938_pcic_setup(struct tx4938_pcic_reg *pcicptr,
- struct pci_controller *channel,
- unsigned long pci_io_base,
- int extarb)
-{
- int i;
+ int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+ struct pci_controller *c = &txx9_primary_pcic;
- /* Disable All Initiator Space */
- pcicptr->pciccfg &= ~(TX4938_PCIC_PCICCFG_G2PMEN(0)|
- TX4938_PCIC_PCICCFG_G2PMEN(1)|
- TX4938_PCIC_PCICCFG_G2PMEN(2)|
- TX4938_PCIC_PCICCFG_G2PIOEN);
+ register_pci_controller(c);
- /* GB->PCI mappings */
- pcicptr->g2piomask = (channel->io_resource->end - channel->io_resource->start) >> 4;
- pcicptr->g2piogbase = pci_io_base |
-#ifdef __BIG_ENDIAN
- TX4938_PCIC_G2PIOGBASE_ECHG
-#else
- TX4938_PCIC_G2PIOGBASE_BSDIS
-#endif
- ;
- pcicptr->g2piopbase = 0;
- for (i = 0; i < 3; i++) {
- pcicptr->g2pmmask[i] = 0;
- pcicptr->g2pmgbase[i] = 0;
- pcicptr->g2pmpbase[i] = 0;
- }
- if (channel->mem_resource->end) {
- pcicptr->g2pmmask[0] = (channel->mem_resource->end - channel->mem_resource->start) >> 4;
- pcicptr->g2pmgbase[0] = channel->mem_resource->start |
-#ifdef __BIG_ENDIAN
- TX4938_PCIC_G2PMnGBASE_ECHG
-#else
- TX4938_PCIC_G2PMnGBASE_BSDIS
-#endif
- ;
- pcicptr->g2pmpbase[0] = channel->mem_resource->start;
- }
- /* PCI->GB mappings (I/O 256B) */
- pcicptr->p2giopbase = 0; /* 256B */
- pcicptr->p2giogbase = 0;
- /* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */
- pcicptr->p2gm0plbase = 0;
- pcicptr->p2gm0pubase = 0;
- pcicptr->p2gmgbase[0] = 0 |
- TX4938_PCIC_P2GMnGBASE_TMEMEN |
-#ifdef __BIG_ENDIAN
- TX4938_PCIC_P2GMnGBASE_TECHG
-#else
- TX4938_PCIC_P2GMnGBASE_TBSDIS
-#endif
- ;
- /* PCI->GB mappings (MEM 16MB) */
- pcicptr->p2gm1plbase = 0xffffffff;
- pcicptr->p2gm1pubase = 0xffffffff;
- pcicptr->p2gmgbase[1] = 0;
- /* PCI->GB mappings (MEM 1MB) */
- pcicptr->p2gm2pbase = 0xffffffff; /* 1MB */
- pcicptr->p2gmgbase[2] = 0;
-
- pcicptr->pciccfg &= TX4938_PCIC_PCICCFG_GBWC_MASK;
- /* Enable Initiator Memory Space */
- if (channel->mem_resource->end)
- pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PMEN(0);
- /* Enable Initiator I/O Space */
- if (channel->io_resource->end)
- pcicptr->pciccfg |= TX4938_PCIC_PCICCFG_G2PIOEN;
- /* Enable Initiator Config */
- pcicptr->pciccfg |=
- TX4938_PCIC_PCICCFG_ICAEN |
- TX4938_PCIC_PCICCFG_TCAR;
-
- /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
- pcicptr->pcicfg1 = 0;
-
- pcicptr->g2ptocnt &= ~0xffff;
-
- if (tx4938_pcic_trdyto >= 0) {
- pcicptr->g2ptocnt &= ~0xff;
- pcicptr->g2ptocnt |= (tx4938_pcic_trdyto & 0xff);
- }
-
- if (tx4938_pcic_retryto >= 0) {
- pcicptr->g2ptocnt &= ~0xff00;
- pcicptr->g2ptocnt |= ((tx4938_pcic_retryto<<8) & 0xff00);
- }
-
- /* Clear All Local Bus Status */
- pcicptr->pcicstatus = TX4938_PCIC_PCICSTATUS_ALL;
- /* Enable All Local Bus Interrupts */
- pcicptr->pcicmask = TX4938_PCIC_PCICSTATUS_ALL;
- /* Clear All Initiator Status */
- pcicptr->g2pstatus = TX4938_PCIC_G2PSTATUS_ALL;
- /* Enable All Initiator Interrupts */
- pcicptr->g2pmask = TX4938_PCIC_G2PSTATUS_ALL;
- /* Clear All PCI Status Error */
- pcicptr->pcistatus =
- (pcicptr->pcistatus & 0x0000ffff) |
- (TX4938_PCIC_PCISTATUS_ALL << 16);
- /* Enable All PCI Status Error Interrupts */
- pcicptr->pcimask = TX4938_PCIC_PCISTATUS_ALL;
-
- if (!extarb) {
- /* Reset Bus Arbiter */
- pcicptr->pbacfg = TX4938_PCIC_PBACFG_RPBA;
- pcicptr->pbabm = 0;
- /* Enable Bus Arbiter */
- pcicptr->pbacfg = TX4938_PCIC_PBACFG_PBAEN;
- }
-
- /* PCIC Int => IRC IRQ16 */
- pcicptr->pcicfg2 =
- (pcicptr->pcicfg2 & 0xffffff00) | TX4938_IR_PCIC;
-
- pcicptr->pcistatus = PCI_COMMAND_MASTER |
- PCI_COMMAND_MEMORY |
- PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
-}
-
-int __init
-tx4938_report_pciclk(void)
-{
- unsigned long pcode = TX4938_REV_PCODE();
- int pciclk = 0;
- printk("TX%lx PCIC --%s PCICLK:",
- pcode,
- (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) ? " PCI66" : "");
- if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
-
- switch ((unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK) {
- case TX4938_CCFG_PCIDIVMODE_4:
- pciclk = txx9_cpu_clock / 4; break;
- case TX4938_CCFG_PCIDIVMODE_4_5:
- pciclk = txx9_cpu_clock * 2 / 9; break;
- case TX4938_CCFG_PCIDIVMODE_5:
- pciclk = txx9_cpu_clock / 5; break;
- case TX4938_CCFG_PCIDIVMODE_5_5:
- pciclk = txx9_cpu_clock * 2 / 11; break;
- case TX4938_CCFG_PCIDIVMODE_8:
- pciclk = txx9_cpu_clock / 8; break;
- case TX4938_CCFG_PCIDIVMODE_9:
- pciclk = txx9_cpu_clock / 9; break;
- case TX4938_CCFG_PCIDIVMODE_10:
- pciclk = txx9_cpu_clock / 10; break;
- case TX4938_CCFG_PCIDIVMODE_11:
- pciclk = txx9_cpu_clock / 11; break;
- }
- printk("Internal(%dMHz)", pciclk / 1000000);
- } else {
- printk("External");
- pciclk = -1;
- }
- printk("\n");
- return pciclk;
-}
-
-void __init set_tx4938_pcicptr(int ch, struct tx4938_pcic_reg *pcicptr)
-{
- pcicptrs[ch] = pcicptr;
-}
-
-struct tx4938_pcic_reg *get_tx4938_pcicptr(int ch)
-{
- return pcicptrs[ch];
-}
-
-static struct pci_dev *fake_pci_dev(struct pci_controller *hose,
- int top_bus, int busnr, int devfn)
-{
- static struct pci_dev dev;
- static struct pci_bus bus;
-
- dev.sysdata = bus.sysdata = hose;
- dev.devfn = devfn;
- bus.number = busnr;
- bus.ops = hose->pci_ops;
- bus.parent = NULL;
- dev.bus = &bus;
-
- return &dev;
-}
-
-#define EARLY_PCI_OP(rw, size, type) \
-static int early_##rw##_config_##size(struct pci_controller *hose, \
- int top_bus, int bus, int devfn, int offset, type value) \
-{ \
- return pci_##rw##_config_##size( \
- fake_pci_dev(hose, top_bus, bus, devfn), \
- offset, value); \
-}
-
-EARLY_PCI_OP(read, word, u16 *)
-
-int txboard_pci66_check(struct pci_controller *hose, int top_bus, int current_bus)
-{
- u32 pci_devfn;
- unsigned short vid;
- int devfn_start = 0;
- int devfn_stop = 0xff;
- int cap66 = -1;
- u16 stat;
-
- printk("PCI: Checking 66MHz capabilities...\n");
-
- for (pci_devfn=devfn_start; pci_devfn<devfn_stop; pci_devfn++) {
- if (early_read_config_word(hose, top_bus, current_bus,
- pci_devfn, PCI_VENDOR_ID,
- &vid) != PCIBIOS_SUCCESSFUL)
- continue;
-
- if (vid == 0xffff) continue;
-
- /* check 66MHz capability */
- if (cap66 < 0)
- cap66 = 1;
- if (cap66) {
- early_read_config_word(hose, top_bus, current_bus, pci_devfn,
- PCI_STATUS, &stat);
- if (!(stat & PCI_STATUS_66MHZ)) {
- printk(KERN_DEBUG "PCI: %02x:%02x not 66MHz capable.\n",
- current_bus, pci_devfn);
- cap66 = 0;
- break;
- }
- }
- }
- return cap66 > 0;
-}
-
-int __init
-tx4938_pciclk66_setup(void)
-{
- int pciclk;
-
- /* Assert M66EN */
- tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI66;
- /* Double PCICLK (if possible) */
- if (tx4938_ccfgptr->pcfg & TX4938_PCFG_PCICLKEN_ALL) {
- unsigned int pcidivmode =
- tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIDIVMODE_MASK;
- switch (pcidivmode) {
- case TX4938_CCFG_PCIDIVMODE_8:
- case TX4938_CCFG_PCIDIVMODE_4:
- pcidivmode = TX4938_CCFG_PCIDIVMODE_4;
- pciclk = txx9_cpu_clock / 4;
- break;
- case TX4938_CCFG_PCIDIVMODE_9:
- case TX4938_CCFG_PCIDIVMODE_4_5:
- pcidivmode = TX4938_CCFG_PCIDIVMODE_4_5;
- pciclk = txx9_cpu_clock * 2 / 9;
- break;
- case TX4938_CCFG_PCIDIVMODE_10:
- case TX4938_CCFG_PCIDIVMODE_5:
- pcidivmode = TX4938_CCFG_PCIDIVMODE_5;
- pciclk = txx9_cpu_clock / 5;
- break;
- case TX4938_CCFG_PCIDIVMODE_11:
- case TX4938_CCFG_PCIDIVMODE_5_5:
- default:
- pcidivmode = TX4938_CCFG_PCIDIVMODE_5_5;
- pciclk = txx9_cpu_clock * 2 / 11;
- break;
- }
- tx4938_ccfgptr->ccfg =
- (tx4938_ccfgptr->ccfg & ~TX4938_CCFG_PCIDIVMODE_MASK)
- | pcidivmode;
- printk(KERN_DEBUG "PCICLK: ccfg:%08lx\n",
- (unsigned long)tx4938_ccfgptr->ccfg);
- } else {
- pciclk = -1;
- }
- return pciclk;
-}
-
-extern struct pci_controller tx4938_pci_controller[];
-static int __init tx4938_pcibios_init(void)
-{
- unsigned long mem_base[2];
- unsigned long mem_size[2] = {TX4938_PCIMEM_SIZE_0, TX4938_PCIMEM_SIZE_1}; /* MAX 128M,64K */
- unsigned long io_base[2];
- unsigned long io_size[2] = {TX4938_PCIIO_SIZE_0, TX4938_PCIIO_SIZE_1}; /* MAX 16M,64K */
- /* TX4938 PCIC1: 64K MEM/IO is enough for ETH0,ETH1 */
- int extarb = !(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB);
-
- PCIBIOS_MIN_IO = 0x00001000UL;
-
- mem_base[0] = txboard_request_phys_region_shrink(&mem_size[0]);
- io_base[0] = txboard_request_phys_region_shrink(&io_size[0]);
-
- printk("TX4938 PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
- (unsigned short)(tx4938_pcicptr->pciid >> 16),
- (unsigned short)(tx4938_pcicptr->pciid & 0xffff),
- (unsigned short)(tx4938_pcicptr->pciccrev & 0xff),
- extarb ? "External" : "Internal");
-
- /* setup PCI area */
- tx4938_pci_controller[0].io_resource->start = io_base[0];
- tx4938_pci_controller[0].io_resource->end = (io_base[0] + io_size[0]) - 1;
- tx4938_pci_controller[0].mem_resource->start = mem_base[0];
- tx4938_pci_controller[0].mem_resource->end = mem_base[0] + mem_size[0] - 1;
-
- set_tx4938_pcicptr(0, tx4938_pcicptr);
-
- register_pci_controller(&tx4938_pci_controller[0]);
-
- if (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI66) {
- printk("TX4938_CCFG_PCI66 already configured\n");
- txboard_pci66_mode = -1; /* already configured */
- }
+ if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+ txx9_pci_option =
+ (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+ TXX9_PCI_OPT_CLK_66; /* already configured */
/* Reset PCI Bus */
writeb(0, rbtx4938_pcireset_addr);
/* Reset PCIC */
- tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
- if (txboard_pci66_mode > 0)
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_66)
tx4938_pciclk66_setup();
mdelay(10);
/* clear PCIC reset */
- tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
writeb(1, rbtx4938_pcireset_addr);
- mmiowb();
- tx4938_report_pcic_status1(tx4938_pcicptr);
+ iob();
tx4938_report_pciclk();
- tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
- if (txboard_pci66_mode == 0 &&
- txboard_pci66_check(&tx4938_pci_controller[0], 0, 0)) {
+ tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+ if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+ TXX9_PCI_OPT_CLK_AUTO &&
+ txx9_pci66_check(c, 0, 0)) {
/* Reset PCI Bus */
writeb(0, rbtx4938_pcireset_addr);
/* Reset PCIC */
- tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIRST;
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
tx4938_pciclk66_setup();
mdelay(10);
/* clear PCIC reset */
- tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIRST;
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
writeb(1, rbtx4938_pcireset_addr);
- mmiowb();
+ iob();
/* Reinitialize PCIC */
tx4938_report_pciclk();
- tx4938_pcic_setup(tx4938_pcicptr, &tx4938_pci_controller[0], io_base[0], extarb);
+ tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
}
- mem_base[1] = txboard_request_phys_region_shrink(&mem_size[1]);
- io_base[1] = txboard_request_phys_region_shrink(&io_size[1]);
- /* Reset PCIC1 */
- tx4938_ccfgptr->clkctr |= TX4938_CLKCTR_PCIC1RST;
- /* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
- if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD))
- tx4938_ccfgptr->ccfg |= TX4938_CCFG_PCI1_66;
- else
- tx4938_ccfgptr->ccfg &= ~TX4938_CCFG_PCI1_66;
- mdelay(10);
- /* clear PCIC1 reset */
- tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
- tx4938_report_pcic_status1(tx4938_pcic1ptr);
+ if (__raw_readq(&tx4938_ccfgptr->pcfg) &
+ (TX4938_PCFG_ETH0_SEL|TX4938_PCFG_ETH1_SEL)) {
+ /* Reset PCIC1 */
+ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+ /* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
+ if (!(__raw_readq(&tx4938_ccfgptr->ccfg)
+ & TX4938_CCFG_PCI1DMD))
+ tx4938_ccfg_set(TX4938_CCFG_PCI1_66);
+ mdelay(10);
+ /* clear PCIC1 reset */
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+ tx4938_report_pci1clk();
- printk("TX4938 PCIC1 -- DID:%04x VID:%04x RID:%02x",
- (unsigned short)(tx4938_pcic1ptr->pciid >> 16),
- (unsigned short)(tx4938_pcic1ptr->pciid & 0xffff),
- (unsigned short)(tx4938_pcic1ptr->pciccrev & 0xff));
- printk("%s PCICLK:%dMHz\n",
- (tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1_66) ? " PCI66" : "",
- txx9_gbus_clock /
- ((tx4938_ccfgptr->ccfg & TX4938_CCFG_PCI1DMD) ? 4 : 2) /
- 1000000);
-
- /* assumption: CPHYSADDR(mips_io_port_base) == io_base[0] */
- tx4938_pci_controller[1].io_resource->start =
- io_base[1] - io_base[0];
- tx4938_pci_controller[1].io_resource->end =
- io_base[1] - io_base[0] + io_size[1] - 1;
- tx4938_pci_controller[1].mem_resource->start = mem_base[1];
- tx4938_pci_controller[1].mem_resource->end =
- mem_base[1] + mem_size[1] - 1;
- set_tx4938_pcicptr(1, tx4938_pcic1ptr);
-
- register_pci_controller(&tx4938_pci_controller[1]);
-
- tx4938_pcic_setup(tx4938_pcic1ptr, &tx4938_pci_controller[1], io_base[1], extarb);
-
- /* map ioport 0 to PCI I/O space address 0 */
- set_io_port_base(KSEG1 + io_base[0]);
-
- return 0;
-}
-
-arch_initcall(tx4938_pcibios_init);
-
+ /* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */
+ c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000);
+ register_pci_controller(c);
+ tx4927_pcic_setup(tx4938_pcic1ptr, c, 0);
+ }
#endif /* CONFIG_PCI */
+}
/* SPI support */
@@ -594,7 +170,7 @@
unsigned int id =
TXX9_IRQ_BASE + (i ? TX4938_IR_ETH1 : TX4938_IR_ETH0);
struct platform_device *pdev;
- if (!(tx4938_ccfgptr->pcfg &
+ if (!(__raw_readq(&tx4938_ccfgptr->pcfg) &
(i ? TX4938_PCFG_ETH1_SEL : TX4938_PCFG_ETH0_SEL)))
continue;
pdev = platform_device_alloc("tc35815-mac", id);
@@ -611,18 +187,12 @@
static void __init rbtx4938_spi_setup(void)
{
/* set SPI_SEL */
- tx4938_ccfgptr->pcfg |= TX4938_PCFG_SPI_SEL;
+ txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_SPI_SEL);
}
static struct resource rbtx4938_fpga_resource;
-
-static char pcode_str[8];
-static struct resource tx4938_reg_resource = {
- .start = TX4938_REG_BASE,
- .end = TX4938_REG_BASE + TX4938_REG_SIZE,
- .name = pcode_str,
- .flags = IORESOURCE_MEM
-};
+static struct resource tx4938_sdram_resource[4];
+static struct resource tx4938_sram_resource;
void __init tx4938_board_setup(void)
{
@@ -631,24 +201,28 @@
int cpuclk = 0;
unsigned long pcode = TX4938_REV_PCODE();
- ioport_resource.start = 0x1000;
+ ioport_resource.start = 0;
ioport_resource.end = 0xffffffff;
- iomem_resource.start = 0x1000;
+ iomem_resource.start = 0;
iomem_resource.end = 0xffffffff; /* expand to 4GB */
- sprintf(pcode_str, "TX%lx", pcode);
+ txx9_reg_res_init(pcode, TX4938_REG_BASE,
+ TX4938_REG_SIZE);
/* SDRAMC,EBUSC are configured by PROM */
for (i = 0; i < 8; i++) {
- if (!(tx4938_ebuscptr->cr[i] & 0x8))
+ if (!(TX4938_EBUSC_CR(i) & 0x8))
continue; /* disabled */
- rbtx4938_ce_base[i] = (unsigned long)TX4938_EBUSC_BA(i);
- txboard_add_phys_region(rbtx4938_ce_base[i], TX4938_EBUSC_SIZE(i));
+ txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
+ txx9_ce_res[i].end =
+ txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
+ request_resource(&iomem_resource, &txx9_ce_res[i]);
}
/* clocks */
if (txx9_master_clock) {
+ u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
/* calculate gbus_clock and cpu_clock_freq from master_clock */
- divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
switch (divmode) {
case TX4938_CCFG_DIVMODE_8:
case TX4938_CCFG_DIVMODE_10:
@@ -678,12 +252,13 @@
}
txx9_cpu_clock = cpuclk;
} else {
+ u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
if (txx9_cpu_clock == 0) {
txx9_cpu_clock = 300000000; /* 300MHz */
}
/* calculate gbus_clock and master_clock from cpu_clock_freq */
cpuclk = txx9_cpu_clock;
- divmode = (unsigned long)tx4938_ccfgptr->ccfg & TX4938_CCFG_DIVMODE_MASK;
+ divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
switch (divmode) {
case TX4938_CCFG_DIVMODE_2:
case TX4938_CCFG_DIVMODE_8:
@@ -717,32 +292,32 @@
/* CCFG */
/* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
- tx4938_ccfgptr->ccfg |= TX4938_CCFG_WDRST | TX4938_CCFG_BEOW;
+ tx4938_ccfg_set(TX4938_CCFG_WDRST | TX4938_CCFG_BEOW);
/* do reset on watchdog */
- tx4938_ccfgptr->ccfg |= TX4938_CCFG_WR;
+ tx4938_ccfg_set(TX4938_CCFG_WR);
/* clear PCIC1 reset */
- if (tx4938_ccfgptr->clkctr & TX4938_CLKCTR_PCIC1RST)
- tx4938_ccfgptr->clkctr &= ~TX4938_CLKCTR_PCIC1RST;
+ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
/* enable Timeout BusError */
if (tx4938_ccfg_toeon)
- tx4938_ccfgptr->ccfg |= TX4938_CCFG_TOE;
+ tx4938_ccfg_set(TX4938_CCFG_TOE);
/* DMA selection */
- tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_DMASEL_ALL;
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
/* Use external clock for external arbiter */
- if (!(tx4938_ccfgptr->ccfg & TX4938_CCFG_PCIXARB))
- tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_PCICLKEN_ALL;
+ if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
- printk("%s -- %dMHz(M%dMHz) CRIR:%08lx CCFG:%Lx PCFG:%Lx\n",
- pcode_str,
- cpuclk / 1000000, txx9_master_clock / 1000000,
- (unsigned long)tx4938_ccfgptr->crir,
- tx4938_ccfgptr->ccfg,
- tx4938_ccfgptr->pcfg);
+ printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+ txx9_pcode_str,
+ (cpuclk + 500000) / 1000000,
+ (txx9_master_clock + 500000) / 1000000,
+ (__u32)____raw_readq(&tx4938_ccfgptr->crir),
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
+ (unsigned long long)____raw_readq(&tx4938_ccfgptr->pcfg));
- printk("%s SDRAMC --", pcode_str);
+ printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
for (i = 0; i < 4; i++) {
unsigned long long cr = tx4938_sdramcptr->cr[i];
unsigned long ram_base, ram_size;
@@ -753,16 +328,24 @@
if (ram_base >= 0x20000000)
continue; /* high memory (ignore) */
printk(" CR%d:%016Lx", i, cr);
- txboard_add_phys_region(ram_base, ram_size);
+ tx4938_sdram_resource[i].name = "SDRAM";
+ tx4938_sdram_resource[i].start = ram_base;
+ tx4938_sdram_resource[i].end = ram_base + ram_size - 1;
+ tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
}
printk(" TR:%09Lx\n", tx4938_sdramcptr->tr);
/* SRAM */
- if (pcode == 0x4938 && tx4938_sramcptr->cr & 1) {
+ if (tx4938_sramcptr->cr & 1) {
unsigned int size = 0x800;
unsigned long base =
(tx4938_sramcptr->cr >> (39-11)) & ~(size - 1);
- txboard_add_phys_region(base, size);
+ tx4938_sram_resource.name = "SRAM";
+ tx4938_sram_resource.start = base;
+ tx4938_sram_resource.end = base + size - 1;
+ tx4938_sram_resource.flags = IORESOURCE_MEM;
+ request_resource(&iomem_resource, &tx4938_sram_resource);
}
/* TMR */
@@ -778,71 +361,15 @@
__raw_writel(0, &tx4938_pioptr->maskcpu);
__raw_writel(0, &tx4938_pioptr->maskext);
- /* TX4938 internal registers */
- if (request_resource(&iomem_resource, &tx4938_reg_resource))
- printk("request resource for internal registers failed\n");
-}
-
#ifdef CONFIG_PCI
-static inline void tx4938_report_pcic_status1(struct tx4938_pcic_reg *pcicptr)
-{
- unsigned short pcistatus = (unsigned short)(pcicptr->pcistatus >> 16);
- unsigned long g2pstatus = pcicptr->g2pstatus;
- unsigned long pcicstatus = pcicptr->pcicstatus;
- static struct {
- unsigned long flag;
- const char *str;
- } pcistat_tbl[] = {
- { PCI_STATUS_DETECTED_PARITY, "DetectedParityError" },
- { PCI_STATUS_SIG_SYSTEM_ERROR, "SignaledSystemError" },
- { PCI_STATUS_REC_MASTER_ABORT, "ReceivedMasterAbort" },
- { PCI_STATUS_REC_TARGET_ABORT, "ReceivedTargetAbort" },
- { PCI_STATUS_SIG_TARGET_ABORT, "SignaledTargetAbort" },
- { PCI_STATUS_PARITY, "MasterParityError" },
- }, g2pstat_tbl[] = {
- { TX4938_PCIC_G2PSTATUS_TTOE, "TIOE" },
- { TX4938_PCIC_G2PSTATUS_RTOE, "RTOE" },
- }, pcicstat_tbl[] = {
- { TX4938_PCIC_PCICSTATUS_PME, "PME" },
- { TX4938_PCIC_PCICSTATUS_TLB, "TLB" },
- { TX4938_PCIC_PCICSTATUS_NIB, "NIB" },
- { TX4938_PCIC_PCICSTATUS_ZIB, "ZIB" },
- { TX4938_PCIC_PCICSTATUS_PERR, "PERR" },
- { TX4938_PCIC_PCICSTATUS_SERR, "SERR" },
- { TX4938_PCIC_PCICSTATUS_GBE, "GBE" },
- { TX4938_PCIC_PCICSTATUS_IWB, "IWB" },
- };
- int i;
-
- printk("pcistat:%04x(", pcistatus);
- for (i = 0; i < ARRAY_SIZE(pcistat_tbl); i++)
- if (pcistatus & pcistat_tbl[i].flag)
- printk("%s ", pcistat_tbl[i].str);
- printk("), g2pstatus:%08lx(", g2pstatus);
- for (i = 0; i < ARRAY_SIZE(g2pstat_tbl); i++)
- if (g2pstatus & g2pstat_tbl[i].flag)
- printk("%s ", g2pstat_tbl[i].str);
- printk("), pcicstatus:%08lx(", pcicstatus);
- for (i = 0; i < ARRAY_SIZE(pcicstat_tbl); i++)
- if (pcicstatus & pcicstat_tbl[i].flag)
- printk("%s ", pcicstat_tbl[i].str);
- printk(")\n");
+ txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
+#endif
}
-void tx4938_report_pcic_status(void)
-{
- int i;
- struct tx4938_pcic_reg *pcicptr;
- for (i = 0; (pcicptr = get_tx4938_pcicptr(i)) != NULL; i++)
- tx4938_report_pcic_status1(pcicptr);
-}
-
-#endif /* CONFIG_PCI */
-
void __init plat_time_init(void)
{
mips_hpt_frequency = txx9_cpu_clock / 2;
- if (tx4938_ccfgptr->ccfg & TX4938_CCFG_TINTDIS)
+ if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
TXX9_IRQ_BASE + TX4938_IR_TMR(0),
txx9_gbus_clock / 2);
@@ -890,19 +417,20 @@
#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
printk("PIOSEL: disabling both ata and nand selection\n");
local_irq_disable();
- tx4938_ccfgptr->pcfg &= ~(TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
+ txx9_clear64(&tx4938_ccfgptr->pcfg,
+ TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
#endif
#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
printk("PIOSEL: enabling nand selection\n");
- tx4938_ccfgptr->pcfg |= TX4938_PCFG_NDF_SEL;
- tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_ATA_SEL;
+ txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
#endif
#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA
printk("PIOSEL: enabling ata selection\n");
- tx4938_ccfgptr->pcfg |= TX4938_PCFG_ATA_SEL;
- tx4938_ccfgptr->pcfg &= ~TX4938_PCFG_NDF_SEL;
+ txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
+ txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
#endif
#ifdef CONFIG_IP_PNP
@@ -920,7 +448,7 @@
#endif
rbtx4938_spi_setup();
- pcfg = tx4938_ccfgptr->pcfg; /* updated */
+ pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg); /* updated */
/* fixup piosel */
if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
TX4938_PCFG_ATA_SEL)
@@ -1063,6 +591,7 @@
{
txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
gpiochip_add(&rbtx4938_spi_gpio_chip);
+ rbtx4938_pci_setup();
return rbtx4938_spi_init();
}
arch_initcall(rbtx4938_arch_init);