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add minor code cleanup and a core reset for internal sb devices that need it

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@2718 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-12-18 06:14:57 +00:00
parent 61656dfe34
commit 0eab13cd4e
1 changed files with 130 additions and 97 deletions
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227
openwrt/target/linux/linux-2.6/patches/brcm/001-bcm947xx.patch
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@ -11221,8 +11221,8 @@ diff -urN linux.old/arch/mips/bcm947xx/irq.c linux.dev/arch/mips/bcm947xx/irq.c
+}
diff -urN linux.old/arch/mips/bcm947xx/pci.c linux.dev/arch/mips/bcm947xx/pci.c
--- linux.old/arch/mips/bcm947xx/pci.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/bcm947xx/pci.c 2005-12-18 04:44:18.736590500 +0100
@@ -0,0 +1,91 @@
+++ linux.dev/arch/mips/bcm947xx/pci.c 2005-12-18 07:01:36.731635000 +0100
@@ -0,0 +1,215 @@
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
@ -11237,8 +11237,11 @@ diff -urN linux.old/arch/mips/bcm947xx/pci.c linux.dev/arch/mips/bcm947xx/pci.c
+#include <sbmips.h>
+#include <sbconfig.h>
+#include <sbpci.h>
+#include <bcmdevs.h>
+#include <pcicfg.h>
+
+extern sb_t *sbh;
+extern spinlock_t sbh_lock;
+
+
+static int
@ -11246,7 +11249,12 @@ diff -urN linux.old/arch/mips/bcm947xx/pci.c linux.dev/arch/mips/bcm947xx/pci.c
+ int reg, int size, u32 *val)
+{
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sbh_lock, flags);
+ ret = sbpci_read_config(sbh, bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), reg, val, size);
+ spin_unlock_irqrestore(&sbh_lock, flags);
+
+ return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
@ -11255,7 +11263,12 @@ diff -urN linux.old/arch/mips/bcm947xx/pci.c linux.dev/arch/mips/bcm947xx/pci.c
+ int reg, int size, u32 val)
+{
+ int ret;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sbh_lock, flags);
+ ret = sbpci_write_config(sbh, bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn), reg, &val, size);
+ spin_unlock_irqrestore(&sbh_lock, flags);
+
+ return ret ? PCIBIOS_DEVICE_NOT_FOUND : PCIBIOS_SUCCESSFUL;
+}
+
@ -11308,12 +11321,123 @@ diff -urN linux.old/arch/mips/bcm947xx/pci.c linux.dev/arch/mips/bcm947xx/pci.c
+
+void bcm47xx_pci_init(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&sbh_lock, flags);
+ sbpci_init(sbh);
+ spin_unlock_irqrestore(&sbh_lock, flags);
+
+ set_io_port_base((unsigned long) ioremap_nocache(SB_PCI_MEM, 0x04000000));
+
+ register_pci_controller(&bcm47xx_sb_pci_controller);
+ register_pci_controller(&bcm47xx_ext_pci_controller);
+}
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ u8 irq;
+
+ if (dev->bus->number == 1)
+ return 2;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+ return irq + 2;
+}
+
+u32 pci_iobase = 0x100;
+u32 pci_membase = SB_PCI_DMA;
+
+static void bcm47xx_fixup_device(struct pci_dev *d)
+{
+ struct resource *res;
+ int pos, size;
+ u32 *base;
+
+ if (d->bus->number == 0)
+ return;
+
+ printk("PCI: Fixing up device %s\n", pci_name(d));
+
+ /* Fix up resource bases */
+ for (pos = 0; pos < 6; pos++) {
+ res = &d->resource[pos];
+ base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase);
+ if (res->end) {
+ size = res->end - res->start + 1;
+ if (*base & (size - 1))
+ *base = (*base + size) & ~(size - 1);
+ res->start = *base;
+ res->end = res->start + size - 1;
+ *base += size;
+ pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
+ }
+ /* Fix up PCI bridge BAR0 only */
+ if (d->bus->number == 1 && PCI_SLOT(d->devfn) == 0)
+ break;
+ }
+ /* Fix up interrupt lines */
+ if (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))
+ d->irq = (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))->irq;
+ pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+}
+
+
+static void bcm47xx_fixup_bridge(struct pci_dev *dev)
+{
+ if (dev->bus->number != 1 || PCI_SLOT(dev->devfn) != 0)
+ return;
+
+ printk("PCI: fixing up bridge\n");
+
+ /* Enable PCI bridge bus mastering and memory space */
+ pci_set_master(dev);
+ pcibios_enable_device(dev, ~0);
+
+ /* Enable PCI bridge BAR1 prefetch and burst */
+ pci_write_config_dword(dev, PCI_BAR1_CONTROL, 3);
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ uint coreidx;
+ unsigned long flags;
+
+ bcm47xx_fixup_device(dev);
+
+ /* These cores come out of reset enabled */
+ if ((dev->bus->number != 0) ||
+ (dev->device == SB_MIPS) ||
+ (dev->device == SB_MIPS33) ||
+ (dev->device == SB_EXTIF) ||
+ (dev->device == SB_CC))
+ return 0;
+
+ /* Do a core reset */
+ spin_lock_irqsave(&sbh_lock, flags);
+ coreidx = sb_coreidx(sbh);
+ if (sb_setcoreidx(sbh, PCI_SLOT(dev->devfn)) && (sb_coreid(sbh) == SB_USB)) {
+ /*
+ * The USB core requires a special bit to be set during core
+ * reset to enable host (OHCI) mode. Resetting the SB core in
+ * pcibios_enable_device() is a hack for compatibility with
+ * vanilla usb-ohci so that it does not have to know about
+ * SB. A driver that wants to use the USB core in device mode
+ * should know about SB and should reset the bit back to 0
+ * after calling pcibios_enable_device().
+ */
+ sb_core_disable(sbh, sb_coreflags(sbh, 0, 0));
+ sb_core_reset(sbh, 1 << 29);
+ } else {
+ sb_core_reset(sbh, 0);
+ }
+ sb_setcoreidx(sbh, coreidx);
+ spin_unlock_irqrestore(&sbh_lock, flags);
+
+ return 0;
+}
+
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, bcm47xx_fixup_bridge);
diff -urN linux.old/arch/mips/bcm947xx/prom.c linux.dev/arch/mips/bcm947xx/prom.c
--- linux.old/arch/mips/bcm947xx/prom.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/bcm947xx/prom.c 2005-12-15 12:57:27.877187750 +0100
@ -11379,8 +11503,8 @@ diff -urN linux.old/arch/mips/bcm947xx/prom.c linux.dev/arch/mips/bcm947xx/prom.
+}
diff -urN linux.old/arch/mips/bcm947xx/setup.c linux.dev/arch/mips/bcm947xx/setup.c
--- linux.old/arch/mips/bcm947xx/setup.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/bcm947xx/setup.c 2005-12-18 04:58:53.946564750 +0100
@@ -0,0 +1,155 @@
+++ linux.dev/arch/mips/bcm947xx/setup.c 2005-12-18 06:34:52.106215250 +0100
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
@ -11431,6 +11555,7 @@ diff -urN linux.old/arch/mips/bcm947xx/setup.c linux.dev/arch/mips/bcm947xx/setu
+extern void bcm47xx_time_init(void);
+extern void bcm47xx_timer_setup(struct irqaction *irq);
+void *sbh;
+spinlock_t sbh_lock = SPIN_LOCK_UNLOCKED;
+int boardflags;
+
+static int ser_line = 0;
@ -11535,6 +11660,7 @@ diff -urN linux.old/arch/mips/bcm947xx/setup.c linux.dev/arch/mips/bcm947xx/setu
+}
+
+EXPORT_SYMBOL(sbh);
+EXPORT_SYMBOL(sbh_lock);
+EXPORT_SYMBOL(boardflags);
diff -urN linux.old/arch/mips/bcm947xx/time.c linux.dev/arch/mips/bcm947xx/time.c
--- linux.old/arch/mips/bcm947xx/time.c 1970-01-01 01:00:00.000000000 +0100
@ -11683,99 +11809,6 @@ diff -urN linux.old/arch/mips/mm/tlbex.c linux.dev/arch/mips/mm/tlbex.c
tlbw(p);
break;
diff -urN linux.old/arch/mips/pci/Makefile linux.dev/arch/mips/pci/Makefile
--- linux.old/arch/mips/pci/Makefile 2005-12-15 13:26:49.814003000 +0100
+++ linux.dev/arch/mips/pci/Makefile 2005-12-15 14:27:26.439319250 +0100
@@ -18,6 +18,7 @@
obj-$(CONFIG_MIPS_TX3927) += ops-tx3927.o
obj-$(CONFIG_PCI_VR41XX) += ops-vr41xx.o pci-vr41xx.o
obj-$(CONFIG_NEC_CMBVR4133) += fixup-vr4133.o
+obj-$(CONFIG_BCM947XX) += fixup-bcm47xx.o
#
# These are still pretty much in the old state, watch, go blind.
diff -urN linux.old/arch/mips/pci/fixup-bcm47xx.c linux.dev/arch/mips/pci/fixup-bcm47xx.c
--- linux.old/arch/mips/pci/fixup-bcm47xx.c 1970-01-01 01:00:00.000000000 +0100
+++ linux.dev/arch/mips/pci/fixup-bcm47xx.c 2005-12-18 04:42:58.079549750 +0100
@@ -0,0 +1,78 @@
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <typedefs.h>
+#include <sbconfig.h>
+#include <bcmdevs.h>
+#include <pcicfg.h>
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ u8 irq;
+
+ if (dev->bus->number == 1)
+ return 2;
+
+ pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
+ return irq + 2;
+}
+
+u32 pci_iobase = 0x100;
+u32 pci_membase = SB_PCI_DMA;
+
+static void bcm47xx_fixup_device(struct pci_dev *d)
+{
+ struct resource *res;
+ int pos, size;
+ u32 *base;
+
+ if (d->bus->number == 0)
+ return;
+
+ printk("PCI: Fixing up device %s\n", pci_name(d));
+
+ /* Fix up resource bases */
+ for (pos = 0; pos < 6; pos++) {
+ res = &d->resource[pos];
+ base = ((res->flags & IORESOURCE_IO) ? &pci_iobase : &pci_membase);
+ if (res->end) {
+ size = res->end - res->start + 1;
+ if (*base & (size - 1))
+ *base = (*base + size) & ~(size - 1);
+ res->start = *base;
+ res->end = res->start + size - 1;
+ *base += size;
+ pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
+ }
+ /* Fix up PCI bridge BAR0 only */
+ if (d->bus->number == 1 && PCI_SLOT(d->devfn) == 0)
+ break;
+ }
+ /* Fix up interrupt lines */
+ if (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))
+ d->irq = (pci_find_device(VENDOR_BROADCOM, SB_PCI, NULL))->irq;
+ pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+}
+
+static void bcm47xx_fixup_bridge(struct pci_dev *dev)
+{
+ if (dev->bus->number != 1 || PCI_SLOT(dev->devfn) != 0)
+ return;
+
+ printk("PCI: fixing up bridge\n");
+
+ /* Enable PCI bridge bus mastering and memory space */
+ pci_set_master(dev);
+ pcibios_enable_device(dev, ~0);
+
+ /* Enable PCI bridge BAR1 prefetch and burst */
+ pci_write_config_dword(dev, PCI_BAR1_CONTROL, 3);
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ bcm47xx_fixup_device(dev);
+ return 0;
+}
+
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, bcm47xx_fixup_bridge);
diff -urN linux.old/include/asm-mips/bootinfo.h linux.dev/include/asm-mips/bootinfo.h
--- linux.old/include/asm-mips/bootinfo.h 2005-12-15 13:26:49.818001250 +0100
+++ linux.dev/include/asm-mips/bootinfo.h 2005-12-15 12:57:27.969147500 +0100