preliminary ixp4xx 2.6.28 support

SVN-Revision: 13548

1 files changed, 94 insertions, 0 deletions

diff --git a/target/linux/ixp4xx/patches-2.6.28/204-npe_driver_ixp43x_support.patch b/target/linux/ixp4xx/patches-2.6.28/204-npe_driver_ixp43x_support.patch
new file mode 100644
index 0000000..240370b
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.28/204-npe_driver_ixp43x_support.patch
@@ -0,0 +1,94 @@
+From cba5c286f3ea34ea4767fc00c705434a00fe2c37 Mon Sep 17 00:00:00 2001
+From: Imre Kaloz <kaloz@openwrt.org>
+Date: Thu, 26 Jun 2008 01:58:02 +0200
+Subject: [PATCH] Add support for the ethernet ports on IXP43x
+
+---
+ arch/arm/mach-ixp4xx/ixp4xx_npe.c         |    6 +++---
+ drivers/net/arm/ixp4xx_eth.c              |   13 +++++++++----
+ include/asm-arm/arch-ixp4xx/cpu.h         |    2 ++
+ include/asm-arm/arch-ixp4xx/ixp4xx-regs.h |    7 ++++---
+ 4 files changed, 18 insertions(+), 10 deletions(-)
+
+--- 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, c
+ 		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, "IXP46x/IXP43x firmware ignored on "
+ 			  "IXP42x\n");
+ 		goto err;
+ 	}
+@@ -598,7 +598,7 @@ int npe_load_firmware(struct npe *npe, c
+ 		  "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
+--- a/drivers/net/arm/ixp4xx_eth.c
++++ b/drivers/net/arm/ixp4xx_eth.c
+@@ -32,6 +32,7 @@
+ #include <linux/kernel.h>
+ #include <linux/mii.h>
+ #include <linux/platform_device.h>
++#include <mach/cpu.h>
+ #include <mach/npe.h>
+ #include <mach/qmgr.h>
+ 
+@@ -1337,12 +1338,16 @@ static struct platform_driver drv = {
+ 
+ static int __init eth_init_module(void)
+ {
+-	if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
+-		return -ENOSYS;
+ 
+-	/* All MII PHY accesses use NPE-B Ethernet registers */
+ 	spin_lock_init(&mdio_lock);
+-	mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
++	if (!cpu_is_ixp43x())
++	/* All MII PHY accesses use NPE-B Ethernet registers */
++		mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
++
++	else
++	/* IXP43x lacks NPE-B and uses NPE-C for MII PHY access */
++		mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
++
+ 	__raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
+ 
+ 	return platform_driver_register(&drv);
+--- a/arch/arm/mach-ixp4xx/include/mach/cpu.h
++++ b/arch/arm/mach-ixp4xx/include/mach/cpu.h
+@@ -35,6 +35,8 @@ static inline u32 ixp4xx_read_feature_bi
+ 	val &= ~IXP4XX_FEATURE_RESERVED;
+ 	if (!cpu_is_ixp46x())
+ 		val &= ~IXP4XX_FEATURE_IXP46X_ONLY;
++	if (cpu_is_ixp42x())
++		val &= ~IXP4XX_FEATURE_IXP43X_46X;
+ 
+ 	return val;
+ }
+--- a/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
++++ b/arch/arm/mach-ixp4xx/include/mach/ixp4xx-regs.h
+@@ -628,11 +628,12 @@
+ #define IXP4XX_FEATURE_XSCALE_MAX_FREQ	(3 << 22)
+ #define IXP4XX_FEATURE_RESERVED		(0xFF << 24)
+ 
+-#define IXP4XX_FEATURE_IXP46X_ONLY (IXP4XX_FEATURE_ECC_TIMESYNC |	\
++#define IXP4XX_FEATURE_IXP43X_46X (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 IXP4XX_FEATURE_IXP46X_ONLY (IXP4XX_FEATURE_NPEB_ETH_1_TO_3 |	\
++				    IXP4XX_FEATURE_RSA)
++
+ #endif