summaryrefslogtreecommitdiffstats
path: root/drivers/bcma
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/bcma')
-rw-r--r--drivers/bcma/Kconfig33
-rw-r--r--drivers/bcma/Makefile7
-rw-r--r--drivers/bcma/README19
-rw-r--r--drivers/bcma/TODO3
-rw-r--r--drivers/bcma/bcma_private.h28
-rw-r--r--drivers/bcma/core.c51
-rw-r--r--drivers/bcma/driver_chipcommon.c89
-rw-r--r--drivers/bcma/driver_chipcommon_pmu.c134
-rw-r--r--drivers/bcma/driver_pci.c163
-rw-r--r--drivers/bcma/host_pci.c196
-rw-r--r--drivers/bcma/main.c247
-rw-r--r--drivers/bcma/scan.c360
-rw-r--r--drivers/bcma/scan.h56
13 files changed, 1386 insertions, 0 deletions
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
new file mode 100644
index 00000000000..353781b5b78
--- /dev/null
+++ b/drivers/bcma/Kconfig
@@ -0,0 +1,33 @@
+config BCMA_POSSIBLE
+ bool
+ depends on HAS_IOMEM && HAS_DMA
+ default y
+
+menu "Broadcom specific AMBA"
+ depends on BCMA_POSSIBLE
+
+config BCMA
+ tristate "BCMA support"
+ depends on BCMA_POSSIBLE
+ help
+ Bus driver for Broadcom specific Advanced Microcontroller Bus
+ Architecture.
+
+config BCMA_HOST_PCI_POSSIBLE
+ bool
+ depends on BCMA && PCI = y
+ default y
+
+config BCMA_HOST_PCI
+ bool "Support for BCMA on PCI-host bus"
+ depends on BCMA_HOST_PCI_POSSIBLE
+
+config BCMA_DEBUG
+ bool "BCMA debugging"
+ depends on BCMA
+ help
+ This turns on additional debugging messages.
+
+ If unsure, say N
+
+endmenu
diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile
new file mode 100644
index 00000000000..0d56245bcb7
--- /dev/null
+++ b/drivers/bcma/Makefile
@@ -0,0 +1,7 @@
+bcma-y += main.o scan.o core.o
+bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
+bcma-y += driver_pci.o
+bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o
+obj-$(CONFIG_BCMA) += bcma.o
+
+ccflags-$(CONFIG_BCMA_DEBUG) := -DDEBUG
diff --git a/drivers/bcma/README b/drivers/bcma/README
new file mode 100644
index 00000000000..f7e7ce46c60
--- /dev/null
+++ b/drivers/bcma/README
@@ -0,0 +1,19 @@
+Broadcom introduced new bus as replacement for older SSB. It is based on AMBA,
+however from programming point of view there is nothing AMBA specific we use.
+
+Standard AMBA drivers are platform specific, have hardcoded addresses and use
+AMBA standard fields like CID and PID.
+
+In case of Broadcom's cards every device consists of:
+1) Broadcom specific AMBA device. It is put on AMBA bus, but can not be treated
+ as standard AMBA device. Reading it's CID or PID can cause machine lockup.
+2) AMBA standard devices called ports or wrappers. They have CIDs (AMBA_CID)
+ and PIDs (0x103BB369), but we do not use that info for anything. One of that
+ devices is used for managing Broadcom specific core.
+
+Addresses of AMBA devices are not hardcoded in driver and have to be read from
+EPROM.
+
+In this situation we decided to introduce separated bus. It can contain up to
+16 devices identified by Broadcom specific fields: manufacturer, id, revision
+and class.
diff --git a/drivers/bcma/TODO b/drivers/bcma/TODO
new file mode 100644
index 00000000000..da7aa99fe81
--- /dev/null
+++ b/drivers/bcma/TODO
@@ -0,0 +1,3 @@
+- Interrupts
+- Defines for PCI core driver
+- Create kernel Documentation (use info from README)
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
new file mode 100644
index 00000000000..2f72e9c585f
--- /dev/null
+++ b/drivers/bcma/bcma_private.h
@@ -0,0 +1,28 @@
+#ifndef LINUX_BCMA_PRIVATE_H_
+#define LINUX_BCMA_PRIVATE_H_
+
+#ifndef pr_fmt
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#endif
+
+#include <linux/bcma/bcma.h>
+#include <linux/delay.h>
+
+#define BCMA_CORE_SIZE 0x1000
+
+struct bcma_bus;
+
+/* main.c */
+extern int bcma_bus_register(struct bcma_bus *bus);
+extern void bcma_bus_unregister(struct bcma_bus *bus);
+
+/* scan.c */
+int bcma_bus_scan(struct bcma_bus *bus);
+
+#ifdef CONFIG_BCMA_HOST_PCI
+/* host_pci.c */
+extern int __init bcma_host_pci_init(void);
+extern void __exit bcma_host_pci_exit(void);
+#endif /* CONFIG_BCMA_HOST_PCI */
+
+#endif
diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c
new file mode 100644
index 00000000000..ced379f7b37
--- /dev/null
+++ b/drivers/bcma/core.c
@@ -0,0 +1,51 @@
+/*
+ * Broadcom specific AMBA
+ * Core ops
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+bool bcma_core_is_enabled(struct bcma_device *core)
+{
+ if ((bcma_aread32(core, BCMA_IOCTL) & (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC))
+ != BCMA_IOCTL_CLK)
+ return false;
+ if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
+ return false;
+ return true;
+}
+EXPORT_SYMBOL_GPL(bcma_core_is_enabled);
+
+static void bcma_core_disable(struct bcma_device *core, u32 flags)
+{
+ if (bcma_aread32(core, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
+ return;
+
+ bcma_awrite32(core, BCMA_IOCTL, flags);
+ bcma_aread32(core, BCMA_IOCTL);
+ udelay(10);
+
+ bcma_awrite32(core, BCMA_RESET_CTL, BCMA_RESET_CTL_RESET);
+ udelay(1);
+}
+
+int bcma_core_enable(struct bcma_device *core, u32 flags)
+{
+ bcma_core_disable(core, flags);
+
+ bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC | flags));
+ bcma_aread32(core, BCMA_IOCTL);
+
+ bcma_awrite32(core, BCMA_RESET_CTL, 0);
+ udelay(1);
+
+ bcma_awrite32(core, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags));
+ bcma_aread32(core, BCMA_IOCTL);
+ udelay(1);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcma_core_enable);
diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c
new file mode 100644
index 00000000000..606102256b4
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon.c
@@ -0,0 +1,89 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+static inline u32 bcma_cc_write32_masked(struct bcma_drv_cc *cc, u16 offset,
+ u32 mask, u32 value)
+{
+ value &= mask;
+ value |= bcma_cc_read32(cc, offset) & ~mask;
+ bcma_cc_write32(cc, offset, value);
+
+ return value;
+}
+
+void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
+{
+ if (cc->core->id.rev >= 11)
+ cc->status = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
+ cc->capabilities = bcma_cc_read32(cc, BCMA_CC_CAP);
+ if (cc->core->id.rev >= 35)
+ cc->capabilities_ext = bcma_cc_read32(cc, BCMA_CC_CAP_EXT);
+
+ if (cc->core->id.rev >= 20) {
+ bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
+ bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
+ }
+
+ if (cc->capabilities & BCMA_CC_CAP_PMU)
+ bcma_pmu_init(cc);
+ if (cc->capabilities & BCMA_CC_CAP_PCTL)
+ pr_err("Power control not implemented!\n");
+}
+
+/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
+void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
+{
+ /* instant NMI */
+ bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
+}
+
+void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ bcma_cc_write32_masked(cc, BCMA_CC_IRQMASK, mask, value);
+}
+
+u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask)
+{
+ return bcma_cc_read32(cc, BCMA_CC_IRQSTAT) & mask;
+}
+
+u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask)
+{
+ return bcma_cc_read32(cc, BCMA_CC_GPIOIN) & mask;
+}
+
+u32 bcma_chipco_gpio_out(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUT, mask, value);
+}
+
+u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUTEN, mask, value);
+}
+
+u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOCTL, mask, value);
+}
+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_control);
+
+u32 bcma_chipco_gpio_intmask(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOIRQ, mask, value);
+}
+
+u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+ return bcma_cc_write32_masked(cc, BCMA_CC_GPIOPOL, mask, value);
+}
diff --git a/drivers/bcma/driver_chipcommon_pmu.c b/drivers/bcma/driver_chipcommon_pmu.c
new file mode 100644
index 00000000000..f44177a644c
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -0,0 +1,134 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon Power Management Unit driver
+ *
+ * Copyright 2009, Michael Buesch <mb@bu3sch.de>
+ * Copyright 2007, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
+ u32 offset, u32 mask, u32 set)
+{
+ u32 value;
+
+ bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
+ bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
+ bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
+ value = bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
+ value &= mask;
+ value |= set;
+ bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
+ bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
+}
+
+static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ case 0x4331:
+ case 43224:
+ case 43225:
+ break;
+ default:
+ pr_err("PLL init unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+}
+
+static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+ u32 min_msk = 0, max_msk = 0;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ min_msk = 0x200D;
+ max_msk = 0xFFFF;
+ break;
+ case 43224:
+ break;
+ default:
+ pr_err("PMU resource config unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+
+ /* Set the resource masks. */
+ if (min_msk)
+ bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
+ if (max_msk)
+ bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
+}
+
+void bcma_pmu_swreg_init(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ case 0x4331:
+ case 43224:
+ break;
+ default:
+ pr_err("PMU switch/regulators init unknown for device "
+ "0x%04X\n", bus->chipinfo.id);
+ }
+}
+
+void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4313:
+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
+ break;
+ case 0x4331:
+ pr_err("Enabling Ext PA lines not implemented\n");
+ break;
+ case 43224:
+ if (bus->chipinfo.rev == 0) {
+ pr_err("Workarounds for 43224 rev 0 not fully "
+ "implemented\n");
+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
+ } else {
+ bcma_chipco_chipctl_maskset(cc, 0, ~0, 0xF0);
+ }
+ break;
+ default:
+ pr_err("Workarounds unknown for device 0x%04X\n",
+ bus->chipinfo.id);
+ }
+}
+
+void bcma_pmu_init(struct bcma_drv_cc *cc)
+{
+ u32 pmucap;
+
+ pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
+ cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
+
+ pr_debug("Found rev %u PMU (capabilities 0x%08X)\n", cc->pmu.rev,
+ pmucap);
+
+ if (cc->pmu.rev == 1)
+ bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
+ ~BCMA_CC_PMU_CTL_NOILPONW);
+ else
+ bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
+ BCMA_CC_PMU_CTL_NOILPONW);
+
+ if (cc->core->id.id == 0x4329 && cc->core->id.rev == 2)
+ pr_err("Fix for 4329b0 bad LPOM state not implemented!\n");
+
+ bcma_pmu_pll_init(cc);
+ bcma_pmu_resources_init(cc);
+ bcma_pmu_swreg_init(cc);
+ bcma_pmu_workarounds(cc);
+}
diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
new file mode 100644
index 00000000000..e757e4e3c7e
--- /dev/null
+++ b/drivers/bcma/driver_pci.c
@@ -0,0 +1,163 @@
+/*
+ * Broadcom specific AMBA
+ * PCI Core
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+/**************************************************
+ * R/W ops.
+ **************************************************/
+
+static u32 bcma_pcie_read(struct bcma_drv_pci *pc, u32 address)
+{
+ pcicore_write32(pc, 0x130, address);
+ pcicore_read32(pc, 0x130);
+ return pcicore_read32(pc, 0x134);
+}
+
+#if 0
+static void bcma_pcie_write(struct bcma_drv_pci *pc, u32 address, u32 data)
+{
+ pcicore_write32(pc, 0x130, address);
+ pcicore_read32(pc, 0x130);
+ pcicore_write32(pc, 0x134, data);
+}
+#endif
+
+static void bcma_pcie_mdio_set_phy(struct bcma_drv_pci *pc, u8 phy)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ u32 v;
+ int i;
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 28); /* Write Transaction */
+ v |= (1 << 17); /* Turnaround */
+ v |= (0x1F << 18);
+ v |= (phy << 4);
+ pcicore_write32(pc, mdio_data, v);
+
+ udelay(10);
+ for (i = 0; i < 200; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */)
+ break;
+ msleep(1);
+ }
+}
+
+static u16 bcma_pcie_mdio_read(struct bcma_drv_pci *pc, u8 device, u8 address)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ int max_retries = 10;
+ u16 ret = 0;
+ u32 v;
+ int i;
+
+ v = 0x80; /* Enable Preamble Sequence */
+ v |= 0x2; /* MDIO Clock Divisor */
+ pcicore_write32(pc, mdio_control, v);
+
+ if (pc->core->id.rev >= 10) {
+ max_retries = 200;
+ bcma_pcie_mdio_set_phy(pc, device);
+ }
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 29); /* Read Transaction */
+ v |= (1 << 17); /* Turnaround */
+ if (pc->core->id.rev < 10)
+ v |= (u32)device << 22;
+ v |= (u32)address << 18;
+ pcicore_write32(pc, mdio_data, v);
+ /* Wait for the device to complete the transaction */
+ udelay(10);
+ for (i = 0; i < max_retries; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */) {
+ udelay(10);
+ ret = pcicore_read32(pc, mdio_data);
+ break;
+ }
+ msleep(1);
+ }
+ pcicore_write32(pc, mdio_control, 0);
+ return ret;
+}
+
+static void bcma_pcie_mdio_write(struct bcma_drv_pci *pc, u8 device,
+ u8 address, u16 data)
+{
+ const u16 mdio_control = 0x128;
+ const u16 mdio_data = 0x12C;
+ int max_retries = 10;
+ u32 v;
+ int i;
+
+ v = 0x80; /* Enable Preamble Sequence */
+ v |= 0x2; /* MDIO Clock Divisor */
+ pcicore_write32(pc, mdio_control, v);
+
+ if (pc->core->id.rev >= 10) {
+ max_retries = 200;
+ bcma_pcie_mdio_set_phy(pc, device);
+ }
+
+ v = (1 << 30); /* Start of Transaction */
+ v |= (1 << 28); /* Write Transaction */
+ v |= (1 << 17); /* Turnaround */
+ if (pc->core->id.rev < 10)
+ v |= (u32)device << 22;
+ v |= (u32)address << 18;
+ v |= data;
+ pcicore_write32(pc, mdio_data, v);
+ /* Wait for the device to complete the transaction */
+ udelay(10);
+ for (i = 0; i < max_retries; i++) {
+ v = pcicore_read32(pc, mdio_control);
+ if (v & 0x100 /* Trans complete */)
+ break;
+ msleep(1);
+ }
+ pcicore_write32(pc, mdio_control, 0);
+}
+
+/**************************************************
+ * Workarounds.
+ **************************************************/
+
+static u8 bcma_pcicore_polarity_workaround(struct bcma_drv_pci *pc)
+{
+ return (bcma_pcie_read(pc, 0x204) & 0x10) ? 0xC0 : 0x80;
+}
+
+static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc)
+{
+ const u8 serdes_pll_device = 0x1D;
+ const u8 serdes_rx_device = 0x1F;
+ u16 tmp;
+
+ bcma_pcie_mdio_write(pc, serdes_rx_device, 1 /* Control */,
+ bcma_pcicore_polarity_workaround(pc));
+ tmp = bcma_pcie_mdio_read(pc, serdes_pll_device, 1 /* Control */);
+ if (tmp & 0x4000)
+ bcma_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000);
+}
+
+/**************************************************
+ * Init.
+ **************************************************/
+
+void bcma_core_pci_init(struct bcma_drv_pci *pc)
+{
+ bcma_pcicore_serdes_workaround(pc);
+}
diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
new file mode 100644
index 00000000000..99dd36e8500
--- /dev/null
+++ b/drivers/bcma/host_pci.c
@@ -0,0 +1,196 @@
+/*
+ * Broadcom specific AMBA
+ * PCI Host
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+#include <linux/pci.h>
+
+static void bcma_host_pci_switch_core(struct bcma_device *core)
+{
+ pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN,
+ core->addr);
+ pci_write_config_dword(core->bus->host_pci, BCMA_PCI_BAR0_WIN2,
+ core->wrap);
+ core->bus->mapped_core = core;
+ pr_debug("Switched to core: 0x%X\n", core->id.id);
+}
+
+static u8 bcma_host_pci_read8(struct bcma_device *core, u16 offset)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ return ioread8(core->bus->mmio + offset);
+}
+
+static u16 bcma_host_pci_read16(struct bcma_device *core, u16 offset)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ return ioread16(core->bus->mmio + offset);
+}
+
+static u32 bcma_host_pci_read32(struct bcma_device *core, u16 offset)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ return ioread32(core->bus->mmio + offset);
+}
+
+static void bcma_host_pci_write8(struct bcma_device *core, u16 offset,
+ u8 value)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ iowrite8(value, core->bus->mmio + offset);
+}
+
+static void bcma_host_pci_write16(struct bcma_device *core, u16 offset,
+ u16 value)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ iowrite16(value, core->bus->mmio + offset);
+}
+
+static void bcma_host_pci_write32(struct bcma_device *core, u16 offset,
+ u32 value)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ iowrite32(value, core->bus->mmio + offset);
+}
+
+static u32 bcma_host_pci_aread32(struct bcma_device *core, u16 offset)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ return ioread32(core->bus->mmio + (1 * BCMA_CORE_SIZE) + offset);
+}
+
+static void bcma_host_pci_awrite32(struct bcma_device *core, u16 offset,
+ u32 value)
+{
+ if (core->bus->mapped_core != core)
+ bcma_host_pci_switch_core(core);
+ iowrite32(value, core->bus->mmio + (1 * BCMA_CORE_SIZE) + offset);
+}
+
+const struct bcma_host_ops bcma_host_pci_ops = {
+ .read8 = bcma_host_pci_read8,
+ .read16 = bcma_host_pci_read16,
+ .read32 = bcma_host_pci_read32,
+ .write8 = bcma_host_pci_write8,
+ .write16 = bcma_host_pci_write16,
+ .write32 = bcma_host_pci_write32,
+ .aread32 = bcma_host_pci_aread32,
+ .awrite32 = bcma_host_pci_awrite32,
+};
+
+static int bcma_host_pci_probe(struct pci_dev *dev,
+ const struct pci_device_id *id)
+{
+ struct bcma_bus *bus;
+ int err = -ENOMEM;
+ const char *name;
+ u32 val;
+
+ /* Alloc */
+ bus = kzalloc(sizeof(*bus), GFP_KERNEL);
+ if (!bus)
+ goto out;
+
+ /* Basic PCI configuration */
+ err = pci_enable_device(dev);
+ if (err)
+ goto err_kfree_bus;
+
+ name = dev_name(&dev->dev);
+ if (dev->driver && dev->driver->name)
+ name = dev->driver->name;
+ err = pci_request_regions(dev, name);
+ if (err)
+ goto err_pci_disable;
+ pci_set_master(dev);
+
+ /* Disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_read_config_dword(dev, 0x40, &val);
+ if ((val & 0x0000ff00) != 0)
+ pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
+
+ /* SSB needed additional powering up, do we have any AMBA PCI cards? */
+ if (!pci_is_pcie(dev))
+ pr_err("PCI card detected, report problems.\n");
+
+ /* Map MMIO */
+ err = -ENOMEM;
+ bus->mmio = pci_iomap(dev, 0, ~0UL);
+ if (!bus->mmio)
+ goto err_pci_release_regions;
+
+ /* Host specific */
+ bus->host_pci = dev;
+ bus->hosttype = BCMA_HOSTTYPE_PCI;
+ bus->ops = &bcma_host_pci_ops;
+
+ /* Register */
+ err = bcma_bus_register(bus);
+ if (err)
+ goto err_pci_unmap_mmio;
+
+ pci_set_drvdata(dev, bus);
+
+out:
+ return err;
+
+err_pci_unmap_mmio:
+ pci_iounmap(dev, bus->mmio);
+err_pci_release_regions:
+ pci_release_regions(dev);
+err_pci_disable:
+ pci_disable_device(dev);
+err_kfree_bus:
+ kfree(bus);
+ return err;
+}
+
+static void bcma_host_pci_remove(struct pci_dev *dev)
+{
+ struct bcma_bus *bus = pci_get_drvdata(dev);
+
+ bcma_bus_unregister(bus);
+ pci_iounmap(dev, bus->mmio);
+ pci_release_regions(dev);
+ pci_disable_device(dev);
+ kfree(bus);
+ pci_set_drvdata(dev, NULL);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
+ { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4727) },
+ { 0, },
+};
+MODULE_DEVICE_TABLE(pci, bcma_pci_bridge_tbl);
+
+static struct pci_driver bcma_pci_bridge_driver = {
+ .name = "bcma-pci-bridge",
+ .id_table = bcma_pci_bridge_tbl,
+ .probe = bcma_host_pci_probe,
+ .remove = bcma_host_pci_remove,
+};
+
+int __init bcma_host_pci_init(void)
+{
+ return pci_register_driver(&bcma_pci_bridge_driver);
+}
+
+void __exit bcma_host_pci_exit(void)
+{
+ pci_unregister_driver(&bcma_pci_bridge_driver);
+}
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
new file mode 100644
index 00000000000..be52344ed19
--- /dev/null
+++ b/drivers/bcma/main.c
@@ -0,0 +1,247 @@
+/*
+ * Broadcom specific AMBA
+ * Bus subsystem
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/bcma/bcma.h>
+
+MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
+MODULE_LICENSE("GPL");
+
+static int bcma_bus_match(struct device *dev, struct device_driver *drv);
+static int bcma_device_probe(struct device *dev);
+static int bcma_device_remove(struct device *dev);
+
+static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ return sprintf(buf, "0x%03X\n", core->id.manuf);
+}
+static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ return sprintf(buf, "0x%03X\n", core->id.id);
+}
+static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ return sprintf(buf, "0x%02X\n", core->id.rev);
+}
+static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ return sprintf(buf, "0x%X\n", core->id.class);
+}
+static struct device_attribute bcma_device_attrs[] = {
+ __ATTR_RO(manuf),
+ __ATTR_RO(id),
+ __ATTR_RO(rev),
+ __ATTR_RO(class),
+ __ATTR_NULL,
+};
+
+static struct bus_type bcma_bus_type = {
+ .name = "bcma",
+ .match = bcma_bus_match,
+ .probe = bcma_device_probe,
+ .remove = bcma_device_remove,
+ .dev_attrs = bcma_device_attrs,
+};
+
+static struct bcma_device *bcma_find_core(struct bcma_bus *bus, u16 coreid)
+{
+ struct bcma_device *core;
+
+ list_for_each_entry(core, &bus->cores, list) {
+ if (core->id.id == coreid)
+ return core;
+ }
+ return NULL;
+}
+
+static void bcma_release_core_dev(struct device *dev)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ kfree(core);
+}
+
+static int bcma_register_cores(struct bcma_bus *bus)
+{
+ struct bcma_device *core;
+ int err, dev_id = 0;
+
+ list_for_each_entry(core, &bus->cores, list) {
+ /* We support that cores ourself */
+ switch (core->id.id) {
+ case BCMA_CORE_CHIPCOMMON:
+ case BCMA_CORE_PCI:
+ case BCMA_CORE_PCIE:
+ continue;
+ }
+
+ core->dev.release = bcma_release_core_dev;
+ core->dev.bus = &bcma_bus_type;
+ dev_set_name(&core->dev, "bcma%d:%d", 0/*bus->num*/, dev_id);
+
+ switch (bus->hosttype) {
+ case BCMA_HOSTTYPE_PCI:
+ core->dev.parent = &bus->host_pci->dev;
+ break;
+ case BCMA_HOSTTYPE_NONE:
+ case BCMA_HOSTTYPE_SDIO:
+ break;
+ }
+
+ err = device_register(&core->dev);
+ if (err) {
+ pr_err("Could not register dev for core 0x%03X\n",
+ core->id.id);
+ continue;
+ }
+ core->dev_registered = true;
+ dev_id++;
+ }
+
+ return 0;
+}
+
+static void bcma_unregister_cores(struct bcma_bus *bus)
+{
+ struct bcma_device *core;
+
+ list_for_each_entry(core, &bus->cores, list) {
+ if (core->dev_registered)
+ device_unregister(&core->dev);
+ }
+}
+
+int bcma_bus_register(struct bcma_bus *bus)
+{
+ int err;
+ struct bcma_device *core;
+
+ /* Scan for devices (cores) */
+ err = bcma_bus_scan(bus);
+ if (err) {
+ pr_err("Failed to scan: %d\n", err);
+ return -1;
+ }
+
+ /* Init CC core */
+ core = bcma_find_core(bus, BCMA_CORE_CHIPCOMMON);
+ if (core) {
+ bus->drv_cc.core = core;
+ bcma_core_chipcommon_init(&bus->drv_cc);
+ }
+
+ /* Init PCIE core */
+ core = bcma_find_core(bus, BCMA_CORE_PCIE);
+ if (core) {
+ bus->drv_pci.core = core;
+ bcma_core_pci_init(&bus->drv_pci);
+ }
+
+ /* Register found cores */
+ bcma_register_cores(bus);
+
+ pr_info("Bus registered\n");
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(bcma_bus_register);
+
+void bcma_bus_unregister(struct bcma_bus *bus)
+{
+ bcma_unregister_cores(bus);
+}
+EXPORT_SYMBOL_GPL(bcma_bus_unregister);
+
+int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
+{
+ drv->drv.name = drv->name;
+ drv->drv.bus = &bcma_bus_type;
+ drv->drv.owner = owner;
+
+ return driver_register(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(__bcma_driver_register);
+
+void bcma_driver_unregister(struct bcma_driver *drv)
+{
+ driver_unregister(&drv->drv);
+}
+EXPORT_SYMBOL_GPL(bcma_driver_unregister);
+
+static int bcma_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
+ const struct bcma_device_id *cid = &core->id;
+ const struct bcma_device_id *did;
+
+ for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) {
+ if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) &&
+ (did->id == cid->id || did->id == BCMA_ANY_ID) &&
+ (did->rev == cid->rev || did->rev == BCMA_ANY_REV) &&
+ (did->class == cid->class || did->class == BCMA_ANY_CLASS))
+ return 1;
+ }
+ return 0;
+}
+
+static int bcma_device_probe(struct device *dev)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
+ drv);
+ int err = 0;
+
+ if (adrv->probe)
+ err = adrv->probe(core);
+
+ return err;
+}
+
+static int bcma_device_remove(struct device *dev)
+{
+ struct bcma_device *core = container_of(dev, struct bcma_device, dev);
+ struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
+ drv);
+
+ if (adrv->remove)
+ adrv->remove(core);
+
+ return 0;
+}
+
+static int __init bcma_modinit(void)
+{
+ int err;
+
+ err = bus_register(&bcma_bus_type);
+ if (err)
+ return err;
+
+#ifdef CONFIG_BCMA_HOST_PCI
+ err = bcma_host_pci_init();
+ if (err) {
+ pr_err("PCI host initialization failed\n");
+ err = 0;
+ }
+#endif
+
+ return err;
+}
+fs_initcall(bcma_modinit);
+
+static void __exit bcma_modexit(void)
+{
+#ifdef CONFIG_BCMA_HOST_PCI
+ bcma_host_pci_exit();
+#endif
+ bus_unregister(&bcma_bus_type);
+}
+module_exit(bcma_modexit)
diff --git a/drivers/bcma/scan.c b/drivers/bcma/scan.c
new file mode 100644
index 00000000000..40d7dcce893
--- /dev/null
+++ b/drivers/bcma/scan.c
@@ -0,0 +1,360 @@
+/*
+ * Broadcom specific AMBA
+ * Bus scanning
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "scan.h"
+#include "bcma_private.h"
+
+#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_regs.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+struct bcma_device_id_name {
+ u16 id;
+ const char *name;
+};
+struct bcma_device_id_name bcma_device_names[] = {
+ { BCMA_CORE_OOB_ROUTER, "OOB Router" },
+ { BCMA_CORE_INVALID, "Invalid" },
+ { BCMA_CORE_CHIPCOMMON, "ChipCommon" },
+ { BCMA_CORE_ILINE20, "ILine 20" },
+ { BCMA_CORE_SRAM, "SRAM" },
+ { BCMA_CORE_SDRAM, "SDRAM" },
+ { BCMA_CORE_PCI, "PCI" },
+ { BCMA_CORE_MIPS, "MIPS" },
+ { BCMA_CORE_ETHERNET, "Fast Ethernet" },
+ { BCMA_CORE_V90, "V90" },
+ { BCMA_CORE_USB11_HOSTDEV, "USB 1.1 Hostdev" },
+ { BCMA_CORE_ADSL, "ADSL" },
+ { BCMA_CORE_ILINE100, "ILine 100" },
+ { BCMA_CORE_IPSEC, "IPSEC" },
+ { BCMA_CORE_UTOPIA, "UTOPIA" },
+ { BCMA_CORE_PCMCIA, "PCMCIA" },
+ { BCMA_CORE_INTERNAL_MEM, "Internal Memory" },
+ { BCMA_CORE_MEMC_SDRAM, "MEMC SDRAM" },
+ { BCMA_CORE_OFDM, "OFDM" },
+ { BCMA_CORE_EXTIF, "EXTIF" },
+ { BCMA_CORE_80211, "IEEE 802.11" },
+ { BCMA_CORE_PHY_A, "PHY A" },
+ { BCMA_CORE_PHY_B, "PHY B" },
+ { BCMA_CORE_PHY_G, "PHY G" },
+ { BCMA_CORE_MIPS_3302, "MIPS 3302" },
+ { BCMA_CORE_USB11_HOST, "USB 1.1 Host" },
+ { BCMA_CORE_USB11_DEV, "USB 1.1 Device" },
+ { BCMA_CORE_USB20_HOST, "USB 2.0 Host" },
+ { BCMA_CORE_USB20_DEV, "USB 2.0 Device" },
+ { BCMA_CORE_SDIO_HOST, "SDIO Host" },
+ { BCMA_CORE_ROBOSWITCH, "Roboswitch" },
+ { BCMA_CORE_PARA_ATA, "PATA" },
+ { BCMA_CORE_SATA_XORDMA, "SATA XOR-DMA" },
+ { BCMA_CORE_ETHERNET_GBIT, "GBit Ethernet" },
+ { BCMA_CORE_PCIE, "PCIe" },
+ { BCMA_CORE_PHY_N, "PHY N" },
+ { BCMA_CORE_SRAM_CTL, "SRAM Controller" },
+ { BCMA_CORE_MINI_MACPHY, "Mini MACPHY" },
+ { BCMA_CORE_ARM_1176, "ARM 1176" },
+ { BCMA_CORE_ARM_7TDMI, "ARM 7TDMI" },
+ { BCMA_CORE_PHY_LP, "PHY LP" },
+ { BCMA_CORE_PMU, "PMU" },
+ { BCMA_CORE_PHY_SSN, "PHY SSN" },
+ { BCMA_CORE_SDIO_DEV, "SDIO Device" },
+ { BCMA_CORE_ARM_CM3, "ARM CM3" },
+ { BCMA_CORE_PHY_HT, "PHY HT" },
+ { BCMA_CORE_MIPS_74K, "MIPS 74K" },
+ { BCMA_CORE_MAC_GBIT, "GBit MAC" },
+ { BCMA_CORE_DDR12_MEM_CTL, "DDR1/DDR2 Memory Controller" },
+ { BCMA_CORE_PCIE_RC, "PCIe Root Complex" },
+ { BCMA_CORE_OCP_OCP_BRIDGE, "OCP to OCP Bridge" },
+ { BCMA_CORE_SHARED_COMMON, "Common Shared" },
+ { BCMA_CORE_OCP_AHB_BRIDGE, "OCP to AHB Bridge" },
+ { BCMA_CORE_SPI_HOST, "SPI Host" },
+ { BCMA_CORE_I2S, "I2S" },
+ { BCMA_CORE_SDR_DDR1_MEM_CTL, "SDR/DDR1 Memory Controller" },
+ { BCMA_CORE_SHIM, "SHIM" },
+ { BCMA_CORE_DEFAULT, "Default" },
+};
+const char *bcma_device_name(struct bcma_device_id *id)
+{
+ int i;
+
+ if (id->manuf == BCMA_MANUF_BCM) {
+ for (i = 0; i < ARRAY_SIZE(bcma_device_names); i++) {
+ if (bcma_device_names[i].id == id->id)
+ return bcma_device_names[i].name;
+ }
+ }
+ return "UNKNOWN";
+}
+
+static u32 bcma_scan_read32(struct bcma_bus *bus, u8 current_coreidx,
+ u16 offset)
+{
+ return readl(bus->mmio + offset);
+}
+
+static void bcma_scan_switch_core(struct bcma_bus *bus, u32 addr)
+{
+ if (bus->hosttype == BCMA_HOSTTYPE_PCI)
+ pci_write_config_dword(bus->host_pci, BCMA_PCI_BAR0_WIN,
+ addr);
+}
+
+static u32 bcma_erom_get_ent(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent = readl(*eromptr);
+ (*eromptr)++;
+ return ent;
+}
+
+static void bcma_erom_push_ent(u32 **eromptr)
+{
+ (*eromptr)--;
+}
+
+static s32 bcma_erom_get_ci(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent = bcma_erom_get_ent(bus, eromptr);
+ if (!(ent & SCAN_ER_VALID))
+ return -ENOENT;
+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_CI)
+ return -ENOENT;
+ return ent;
+}
+
+static bool bcma_erom_is_end(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent = bcma_erom_get_ent(bus, eromptr);
+ bcma_erom_push_ent(eromptr);
+ return (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID));
+}
+
+static bool bcma_erom_is_bridge(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent = bcma_erom_get_ent(bus, eromptr);
+ bcma_erom_push_ent(eromptr);
+ return (((ent & SCAN_ER_VALID)) &&
+ ((ent & SCAN_ER_TAGX) == SCAN_ER_TAG_ADDR) &&
+ ((ent & SCAN_ADDR_TYPE) == SCAN_ADDR_TYPE_BRIDGE));
+}
+
+static void bcma_erom_skip_component(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent;
+ while (1) {
+ ent = bcma_erom_get_ent(bus, eromptr);
+ if ((ent & SCAN_ER_VALID) &&
+ ((ent & SCAN_ER_TAG) == SCAN_ER_TAG_CI))
+ break;
+ if (ent == (SCAN_ER_TAG_END | SCAN_ER_VALID))
+ break;
+ }
+ bcma_erom_push_ent(eromptr);
+}
+
+static s32 bcma_erom_get_mst_port(struct bcma_bus *bus, u32 **eromptr)
+{
+ u32 ent = bcma_erom_get_ent(bus, eromptr);
+ if (!(ent & SCAN_ER_VALID))
+ return -ENOENT;
+ if ((ent & SCAN_ER_TAG) != SCAN_ER_TAG_MP)
+ return -ENOENT;
+ return ent;
+}
+
+static s32 bcma_erom_get_addr_desc(struct bcma_bus *bus, u32 **eromptr,
+ u32 type, u8 port)
+{
+ u32 addrl, addrh, sizel, sizeh = 0;
+ u32 size;
+
+ u32 ent = bcma_erom_get_ent(bus, eromptr);
+ if ((!(ent & SCAN_ER_VALID)) ||
+ ((ent & SCAN_ER_TAGX) != SCAN_ER_TAG_ADDR) ||
+ ((ent & SCAN_ADDR_TYPE) != type) ||
+ (((ent & SCAN_ADDR_PORT) >> SCAN_ADDR_PORT_SHIFT) != port)) {
+ bcma_erom_push_ent(eromptr);
+ return -EINVAL;
+ }
+
+ addrl = ent & SCAN_ADDR_ADDR;
+ if (ent & SCAN_ADDR_AG32)
+ addrh = bcma_erom_get_ent(bus, eromptr);
+ else
+ addrh = 0;
+
+ if ((ent & SCAN_ADDR_SZ) == SCAN_ADDR_SZ_SZD) {
+ size = bcma_erom_get_ent(bus, eromptr);
+ sizel = size & SCAN_SIZE_SZ;
+ if (size & SCAN_SIZE_SG32)
+ sizeh = bcma_erom_get_ent(bus, eromptr);
+ } else
+ sizel = SCAN_ADDR_SZ_BASE <<
+ ((ent & SCAN_ADDR_SZ) >> SCAN_ADDR_SZ_SHIFT);
+
+ return addrl;
+}
+
+int bcma_bus_scan(struct bcma_bus *bus)
+{
+ u32 erombase;
+ u32 __iomem *eromptr, *eromend;
+
+ s32 cia, cib;
+ u8 ports[2], wrappers[2];
+
+ s32 tmp;
+ u8 i, j;
+
+ int err;
+
+ INIT_LIST_HEAD(&bus->cores);
+ bus->nr_cores = 0;
+
+ bcma_scan_switch_core(bus, BCMA_ADDR_BASE);
+
+ tmp = bcma_scan_read32(bus, 0, BCMA_CC_ID);
+ bus->chipinfo.id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT;
+ bus->chipinfo.rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT;
+ bus->chipinfo.pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT;
+
+ erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM);
+ eromptr = bus->mmio;
+ eromend = eromptr + BCMA_CORE_SIZE / sizeof(u32);
+
+ bcma_scan_switch_core(bus, erombase);
+
+ while (eromptr < eromend) {
+ struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL);
+ if (!core)
+ return -ENOMEM;
+ INIT_LIST_HEAD(&core->list);
+ core->bus = bus;
+
+ /* get CIs */
+ cia = bcma_erom_get_ci(bus, &eromptr);
+ if (cia < 0) {
+ bcma_erom_push_ent(&eromptr);
+ if (bcma_erom_is_end(bus, &eromptr))
+ break;
+ err= -EILSEQ;
+ goto out;
+ }
+ cib = bcma_erom_get_ci(bus, &eromptr);
+ if (cib < 0) {
+ err= -EILSEQ;
+ goto out;
+ }
+
+ /* parse CIs */
+ core->id.class = (cia & SCAN_CIA_CLASS) >> SCAN_CIA_CLASS_SHIFT;
+ core->id.id = (cia & SCAN_CIA_ID) >> SCAN_CIA_ID_SHIFT;
+ core->id.manuf = (cia & SCAN_CIA_MANUF) >> SCAN_CIA_MANUF_SHIFT;
+ ports[0] = (cib & SCAN_CIB_NMP) >> SCAN_CIB_NMP_SHIFT;
+ ports[1] = (cib & SCAN_CIB_NSP) >> SCAN_CIB_NSP_SHIFT;
+ wrappers[0] = (cib & SCAN_CIB_NMW) >> SCAN_CIB_NMW_SHIFT;
+ wrappers[1] = (cib & SCAN_CIB_NSW) >> SCAN_CIB_NSW_SHIFT;
+ core->id.rev = (cib & SCAN_CIB_REV) >> SCAN_CIB_REV_SHIFT;
+
+ if (((core->id.manuf == BCMA_MANUF_ARM) &&
+ (core->id.id == 0xFFF)) ||
+ (ports[1] == 0)) {
+ bcma_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ /* check if component is a core at all */
+ if (wrappers[0] + wrappers[1] == 0) {
+ /* we could save addrl of the router
+ if (cid == BCMA_CORE_OOB_ROUTER)
+ */
+ bcma_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ if (bcma_erom_is_bridge(bus, &eromptr)) {
+ bcma_erom_skip_component(bus, &eromptr);
+ continue;
+ }
+
+ /* get & parse master ports */
+ for (i = 0; i < ports[0]; i++) {
+ u32 mst_port_d = bcma_erom_get_mst_port(bus, &eromptr);
+ if (mst_port_d < 0) {
+ err= -EILSEQ;
+ goto out;
+ }
+ }
+
+ /* get & parse slave ports */
+ for (i = 0; i < ports[1]; i++) {
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_SLAVE, i);
+ if (tmp < 0) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: slave port %d "
+ * "has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (i == 0 && j == 0)
+ core->addr = tmp;
+ }
+ }
+ }
+
+ /* get & parse master wrappers */
+ for (i = 0; i < wrappers[0]; i++) {
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_MWRAP, i);
+ if (tmp < 0) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: master wrapper %d "
+ * "has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (i == 0 && j == 0)
+ core->wrap = tmp;
+ }
+ }
+ }
+
+ /* get & parse slave wrappers */
+ for (i = 0; i < wrappers[1]; i++) {
+ u8 hack = (ports[1] == 1) ? 0 : 1;
+ for (j = 0; ; j++) {
+ tmp = bcma_erom_get_addr_desc(bus, &eromptr,
+ SCAN_ADDR_TYPE_SWRAP, i + hack);
+ if (tmp < 0) {
+ /* no more entries for port _i_ */
+ /* pr_debug("erom: master wrapper %d "
+ * has %d descriptors\n", i, j); */
+ break;
+ } else {
+ if (wrappers[0] == 0 && !i && !j)
+ core->wrap = tmp;
+ }
+ }
+ }
+
+ pr_info("Core %d found: %s "
+ "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
+ bus->nr_cores, bcma_device_name(&core->id),
+ core->id.manuf, core->id.id, core->id.rev,
+ core->id.class);
+
+ core->core_index = bus->nr_cores++;
+ list_add(&core->list, &bus->cores);
+ continue;
+out:
+ return err;
+ }
+
+ return 0;
+}
diff --git a/drivers/bcma/scan.h b/drivers/bcma/scan.h
new file mode 100644
index 00000000000..113e6a66884
--- /dev/null
+++ b/drivers/bcma/scan.h
@@ -0,0 +1,56 @@
+#ifndef BCMA_SCAN_H_
+#define BCMA_SCAN_H_
+
+#define BCMA_ADDR_BASE 0x18000000
+#define BCMA_WRAP_BASE 0x18100000
+
+#define SCAN_ER_VALID 0x00000001
+#define SCAN_ER_TAGX 0x00000006 /* we have to ignore 0x8 bit when checking tag for SCAN_ER_TAG_ADDR */
+#define SCAN_ER_TAG 0x0000000E
+#define SCAN_ER_TAG_CI 0x00000000
+#define SCAN_ER_TAG_MP 0x00000002
+#define SCAN_ER_TAG_ADDR 0x00000004
+#define SCAN_ER_TAG_END 0x0000000E
+#define SCAN_ER_BAD 0xFFFFFFFF
+
+#define SCAN_CIA_CLASS 0x000000F0
+#define SCAN_CIA_CLASS_SHIFT 4
+#define SCAN_CIA_ID 0x000FFF00
+#define SCAN_CIA_ID_SHIFT 8
+#define SCAN_CIA_MANUF 0xFFF00000
+#define SCAN_CIA_MANUF_SHIFT 20
+
+#define SCAN_CIB_NMP 0x000001F0
+#define SCAN_CIB_NMP_SHIFT 4
+#define SCAN_CIB_NSP 0x00003E00
+#define SCAN_CIB_NSP_SHIFT 9
+#define SCAN_CIB_NMW 0x0007C000
+#define SCAN_CIB_NMW_SHIFT 14
+#define SCAN_CIB_NSW 0x00F80000
+#define SCAN_CIB_NSW_SHIFT 17
+#define SCAN_CIB_REV 0xFF000000
+#define SCAN_CIB_REV_SHIFT 24
+
+#define SCAN_ADDR_AG32 0x00000008
+#define SCAN_ADDR_SZ 0x00000030
+#define SCAN_ADDR_SZ_SHIFT 4
+#define SCAN_ADDR_SZ_4K 0x00000000
+#define SCAN_ADDR_SZ_8K 0x00000010
+#define SCAN_ADDR_SZ_16K 0x00000020
+#define SCAN_ADDR_SZ_SZD 0x00000030
+#define SCAN_ADDR_TYPE 0x000000C0
+#define SCAN_ADDR_TYPE_SLAVE 0x00000000
+#define SCAN_ADDR_TYPE_BRIDGE 0x00000040
+#define SCAN_ADDR_TYPE_SWRAP 0x00000080
+#define SCAN_ADDR_TYPE_MWRAP 0x000000C0
+#define SCAN_ADDR_PORT 0x00000F00
+#define SCAN_ADDR_PORT_SHIFT 8
+#define SCAN_ADDR_ADDR 0xFFFFF000
+
+#define SCAN_ADDR_SZ_BASE 0x00001000 /* 4KB */
+
+#define SCAN_SIZE_SZ_ALIGN 0x00000FFF
+#define SCAN_SIZE_SZ 0xFFFFF000
+#define SCAN_SIZE_SG32 0x00000008
+
+#endif /* BCMA_SCAN_H_ */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-13 09:12:07 +0000