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-rw-r--r--arch/arm/include/asm/sizes.h1
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c25
-rw-r--r--arch/arm/mach-ixp4xx/include/mach/cpu.h35
-rw-r--r--arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h42
-rw-r--r--arch/arm/mach-ixp4xx/ixp4xx_npe.c6
-rw-r--r--drivers/net/arm/ixp4xx_eth.c20
6 files changed, 82 insertions, 47 deletions
diff --git a/arch/arm/include/asm/sizes.h b/arch/arm/include/asm/sizes.h
index 503843db1565..c10d1aa4b487 100644
--- a/arch/arm/include/asm/sizes.h
+++ b/arch/arm/include/asm/sizes.h
@@ -43,6 +43,7 @@
#define SZ_8M 0x00800000
#define SZ_16M 0x01000000
#define SZ_32M 0x02000000
+#define SZ_48M 0x03000000
#define SZ_64M 0x04000000
#define SZ_128M 0x08000000
#define SZ_256M 0x10000000
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index d816c51320c7..70afcfe5b881 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -366,7 +366,7 @@ void __init ixp4xx_adjust_zones(int node, unsigned long *zone_size,
}
void __init ixp4xx_pci_preinit(void)
-{
+{
unsigned long cpuid = read_cpuid_id();
/*
@@ -386,17 +386,17 @@ void __init ixp4xx_pci_preinit(void)
pr_debug("setup PCI-AHB(inbound) and AHB-PCI(outbound) address mappings\n");
- /*
+ /*
* We use identity AHB->PCI address translation
* in the 0x48000000 to 0x4bffffff address space
*/
*PCI_PCIMEMBASE = 0x48494A4B;
- /*
+ /*
* We also use identity PCI->AHB address translation
* in 4 16MB BARs that begin at the physical memory start
*/
- *PCI_AHBMEMBASE = (PHYS_OFFSET & 0xFF000000) +
+ *PCI_AHBMEMBASE = (PHYS_OFFSET & 0xFF000000) +
((PHYS_OFFSET & 0xFF000000) >> 8) +
((PHYS_OFFSET & 0xFF000000) >> 16) +
((PHYS_OFFSET & 0xFF000000) >> 24) +
@@ -408,18 +408,19 @@ void __init ixp4xx_pci_preinit(void)
pr_debug("setup BARs in controller\n");
/*
- * We configure the PCI inbound memory windows to be
+ * We configure the PCI inbound memory windows to be
* 1:1 mapped to SDRAM
*/
- local_write_config(PCI_BASE_ADDRESS_0, 4, PHYS_OFFSET + 0x00000000);
- local_write_config(PCI_BASE_ADDRESS_1, 4, PHYS_OFFSET + 0x01000000);
- local_write_config(PCI_BASE_ADDRESS_2, 4, PHYS_OFFSET + 0x02000000);
- local_write_config(PCI_BASE_ADDRESS_3, 4, PHYS_OFFSET + 0x03000000);
+ local_write_config(PCI_BASE_ADDRESS_0, 4, PHYS_OFFSET);
+ local_write_config(PCI_BASE_ADDRESS_1, 4, PHYS_OFFSET + SZ_16M);
+ local_write_config(PCI_BASE_ADDRESS_2, 4, PHYS_OFFSET + SZ_32M);
+ local_write_config(PCI_BASE_ADDRESS_3, 4, PHYS_OFFSET + SZ_48M);
/*
- * Enable CSR window at 0xff000000.
+ * Enable CSR window at 64 MiB to allow PCI masters
+ * to continue prefetching past 64 MiB boundary.
*/
- local_write_config(PCI_BASE_ADDRESS_4, 4, 0xff000008);
+ local_write_config(PCI_BASE_ADDRESS_4, 4, PHYS_OFFSET + SZ_64M);
/*
* Enable the IO window to be way up high, at 0xfffffc00
@@ -500,7 +501,7 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
return 1;
}
-struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
+struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
{
return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
}
diff --git a/arch/arm/mach-ixp4xx/include/mach/cpu.h b/arch/arm/mach-ixp4xx/include/mach/cpu.h
index 51bd69c46d94..def7773be67c 100644
--- a/arch/arm/mach-ixp4xx/include/mach/cpu.h
+++ b/arch/arm/mach-ixp4xx/include/mach/cpu.h
@@ -17,26 +17,31 @@
#include <asm/cputype.h>
/* Processor id value in CP15 Register 0 */
-#define IXP425_PROCESSOR_ID_VALUE 0x690541c0
-#define IXP435_PROCESSOR_ID_VALUE 0x69054040
-#define IXP465_PROCESSOR_ID_VALUE 0x69054200
-#define IXP4XX_PROCESSOR_ID_MASK 0xfffffff0
-
-#define cpu_is_ixp42x() ((read_cpuid_id() & IXP4XX_PROCESSOR_ID_MASK) == \
- IXP425_PROCESSOR_ID_VALUE)
-#define cpu_is_ixp43x() ((read_cpuid_id() & IXP4XX_PROCESSOR_ID_MASK) == \
- IXP435_PROCESSOR_ID_VALUE)
-#define cpu_is_ixp46x() ((read_cpuid_id() & IXP4XX_PROCESSOR_ID_MASK) == \
- IXP465_PROCESSOR_ID_VALUE)
+#define IXP42X_PROCESSOR_ID_VALUE 0x690541c0 /* including unused 0x690541Ex */
+#define IXP42X_PROCESSOR_ID_MASK 0xffffffc0
+
+#define IXP43X_PROCESSOR_ID_VALUE 0x69054040
+#define IXP43X_PROCESSOR_ID_MASK 0xfffffff0
+
+#define IXP46X_PROCESSOR_ID_VALUE 0x69054200 /* including IXP455 */
+#define IXP46X_PROCESSOR_ID_MASK 0xfffffff0
+
+#define cpu_is_ixp42x() ((read_cpuid_id() & IXP42X_PROCESSOR_ID_MASK) == \
+ IXP42X_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp43x() ((read_cpuid_id() & IXP43X_PROCESSOR_ID_MASK) == \
+ IXP43X_PROCESSOR_ID_VALUE)
+#define cpu_is_ixp46x() ((read_cpuid_id() & IXP46X_PROCESSOR_ID_MASK) == \
+ IXP46X_PROCESSOR_ID_VALUE)
static inline u32 ixp4xx_read_feature_bits(void)
{
unsigned int val = ~*IXP4XX_EXP_CFG2;
- val &= ~IXP4XX_FEATURE_RESERVED;
- if (!cpu_is_ixp46x())
- val &= ~IXP4XX_FEATURE_IXP46X_ONLY;
- return val;
+ if (cpu_is_ixp42x())
+ return val & IXP42X_FEATURE_MASK;
+ if (cpu_is_ixp43x())
+ return val & IXP43X_FEATURE_MASK;
+ return val & IXP46X_FEATURE_MASK;
}
static inline void ixp4xx_write_feature_bits(u32 value)
diff --git a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
index ad9c888dd850..97c530f66e78 100644
--- a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
+++ b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
@@ -604,6 +604,7 @@
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
/* "fuse" bits of IXP_EXP_CFG2 */
+/* All IXP4xx CPUs */
#define IXP4XX_FEATURE_RCOMP (1 << 0)
#define IXP4XX_FEATURE_USB_DEVICE (1 << 1)
#define IXP4XX_FEATURE_HASH (1 << 2)
@@ -619,20 +620,41 @@
#define IXP4XX_FEATURE_RESET_NPEB (1 << 12)
#define IXP4XX_FEATURE_RESET_NPEC (1 << 13)
#define IXP4XX_FEATURE_PCI (1 << 14)
-#define IXP4XX_FEATURE_ECC_TIMESYNC (1 << 15)
#define IXP4XX_FEATURE_UTOPIA_PHY_LIMIT (3 << 16)
+#define IXP4XX_FEATURE_XSCALE_MAX_FREQ (3 << 22)
+#define IXP42X_FEATURE_MASK (IXP4XX_FEATURE_RCOMP | \
+ IXP4XX_FEATURE_USB_DEVICE | \
+ IXP4XX_FEATURE_HASH | \
+ IXP4XX_FEATURE_AES | \
+ IXP4XX_FEATURE_DES | \
+ IXP4XX_FEATURE_HDLC | \
+ IXP4XX_FEATURE_AAL | \
+ IXP4XX_FEATURE_HSS | \
+ IXP4XX_FEATURE_UTOPIA | \
+ IXP4XX_FEATURE_NPEB_ETH0 | \
+ IXP4XX_FEATURE_NPEC_ETH | \
+ IXP4XX_FEATURE_RESET_NPEA | \
+ IXP4XX_FEATURE_RESET_NPEB | \
+ IXP4XX_FEATURE_RESET_NPEC | \
+ IXP4XX_FEATURE_PCI | \
+ IXP4XX_FEATURE_UTOPIA_PHY_LIMIT | \
+ IXP4XX_FEATURE_XSCALE_MAX_FREQ)
+
+
+/* IXP43x/46x CPUs */
+#define IXP4XX_FEATURE_ECC_TIMESYNC (1 << 15)
#define IXP4XX_FEATURE_USB_HOST (1 << 18)
#define IXP4XX_FEATURE_NPEA_ETH (1 << 19)
+#define IXP43X_FEATURE_MASK (IXP42X_FEATURE_MASK | \
+ IXP4XX_FEATURE_ECC_TIMESYNC | \
+ IXP4XX_FEATURE_USB_HOST | \
+ IXP4XX_FEATURE_NPEA_ETH)
+
+/* IXP46x CPU (including IXP455) only */
#define IXP4XX_FEATURE_NPEB_ETH_1_TO_3 (1 << 20)
#define IXP4XX_FEATURE_RSA (1 << 21)
-#define IXP4XX_FEATURE_XSCALE_MAX_FREQ (3 << 22)
-#define IXP4XX_FEATURE_RESERVED (0xFF << 24)
-
-#define IXP4XX_FEATURE_IXP46X_ONLY (IXP4XX_FEATURE_ECC_TIMESYNC | \
- IXP4XX_FEATURE_USB_HOST | \
- IXP4XX_FEATURE_NPEA_ETH | \
- IXP4XX_FEATURE_NPEB_ETH_1_TO_3 | \
- IXP4XX_FEATURE_RSA | \
- IXP4XX_FEATURE_XSCALE_MAX_FREQ)
+#define IXP46X_FEATURE_MASK (IXP43X_FEATURE_MASK | \
+ IXP4XX_FEATURE_NPEB_ETH_1_TO_3 | \
+ IXP4XX_FEATURE_RSA)
#endif
diff --git a/arch/arm/mach-ixp4xx/ixp4xx_npe.c b/arch/arm/mach-ixp4xx/ixp4xx_npe.c
index c73a94d0ca2b..252310234903 100644
--- a/arch/arm/mach-ixp4xx/ixp4xx_npe.c
+++ b/arch/arm/mach-ixp4xx/ixp4xx_npe.c
@@ -575,8 +575,8 @@ int npe_load_firmware(struct npe *npe, const char *name, struct device *dev)
for (i = 0; i < image->size; i++)
image->data[i] = swab32(image->data[i]);
- if (!cpu_is_ixp46x() && ((image->id >> 28) & 0xF /* device ID */)) {
- print_npe(KERN_INFO, npe, "IXP46x firmware ignored on "
+ if (cpu_is_ixp42x() && ((image->id >> 28) & 0xF /* device ID */)) {
+ print_npe(KERN_INFO, npe, "IXP43x/IXP46x firmware ignored on "
"IXP42x\n");
goto err;
}
@@ -596,7 +596,7 @@ int npe_load_firmware(struct npe *npe, const char *name, struct device *dev)
"revision 0x%X:%X\n", (image->id >> 16) & 0xFF,
(image->id >> 8) & 0xFF, image->id & 0xFF);
- if (!cpu_is_ixp46x()) {
+ if (cpu_is_ixp42x()) {
if (!npe->id)
instr_size = NPE_A_42X_INSTR_SIZE;
else
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 5fce1d5c1a1a..9cc43476bfa6 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -335,11 +335,20 @@ static int ixp4xx_mdio_register(void)
if (!(mdio_bus = mdiobus_alloc()))
return -ENOMEM;
- /* All MII PHY accesses use NPE-B Ethernet registers */
- spin_lock_init(&mdio_lock);
- mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
- __raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
+ if (cpu_is_ixp43x()) {
+ /* IXP43x lacks NPE-B and uses NPE-C for MII PHY access */
+ if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEC_ETH))
+ return -ENOSYS;
+ mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
+ } else {
+ /* All MII PHY accesses use NPE-B Ethernet registers */
+ if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
+ return -ENOSYS;
+ mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
+ }
+ __raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
+ spin_lock_init(&mdio_lock);
mdio_bus->name = "IXP4xx MII Bus";
mdio_bus->read = &ixp4xx_mdio_read;
mdio_bus->write = &ixp4xx_mdio_write;
@@ -1250,9 +1259,6 @@ static struct platform_driver ixp4xx_eth_driver = {
static int __init eth_init_module(void)
{
int err;
- if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
- return -ENOSYS;
-
if ((err = ixp4xx_mdio_register()))
return err;
return platform_driver_register(&ixp4xx_eth_driver);
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