summaryrefslogtreecommitdiffstats
path: root/target/linux/ixp4xx/patches-2.6.29/202-npe_driver_ixp43x_support.patch
blob: 7ac41e5982c8554d2143e363c8d3e33ed0e99e39 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
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/phy.h>
 #include <linux/platform_device.h>
+#include <mach/cpu.h>
 #include <mach/npe.h>
 #include <mach/qmgr.h>
 
@@ -337,7 +338,13 @@ static int ixp4xx_mdio_register(void)
 
 	/* 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);
 
 	mdio_bus->name = "IXP4xx MII Bus";
--- 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