ep93xx: add 3.18 support

[openwrt/svn-archive/archive.git] / target / linux / ep93xx / patches-3.18 / 001-ep93xx_cpuinfo.patch

diff --git a/target/linux/ep93xx/patches-3.18/001-ep93xx_cpuinfo.patch b/target/linux/ep93xx/patches-3.18/001-ep93xx_cpuinfo.patch
new file mode 100644 (file)
index 0000000..e9d87df
--- /dev/null
+++ b/target/linux/ep93xx/patches-3.18/001-ep93xx_cpuinfo.patch
@@ -0,0 +1,70 @@
+This patch puts the EP93xx chip revision and unique ID into /proc/cpuinfo.
+This is necessary to be able to set a unique MAC address for DHCP purposes
+by adding a line to /etc/network/interfaces:
+
+# Generate a unique locally-assigned MAC address from the CPU serial number
+pre-up ifconfig eth0 hw ether `sed -n 's/^Serial.* 000000/02/p' /proc/cpuinfo`
+
+It uses the chip revision reading code in the ep93xx-chip-revision patch.
+
+Really, this is wrong, since /proc/cpuinfo should report the revision and
+serial number of the ARM920T processor, while these are the rev and serial
+of the EP93xx SoC. In a future kernel (>2.6.34) there may be a new file
+/proc/socinfo for this information.
+
+       -martinwguy 14 May 2010
+
+--- a/arch/arm/kernel/setup.c
++++ b/arch/arm/kernel/setup.c
+@@ -57,6 +57,12 @@
+ #include <asm/memblock.h>
+ #include <asm/virt.h>
+ 
++#if defined(CONFIG_ARCH_EP93XX)
++#include <asm/io.h>
++#include <mach/platform.h>
++#include <mach/ep93xx-regs.h>
++#endif
++
+ #include "atags.h"
+ 
+ 
+@@ -1087,9 +1093,16 @@ static int c_show(struct seq_file *m, vo
+       }
+ 
+       seq_printf(m, "Hardware\t: %s\n", machine_name);
++#if defined(CONFIG_ARCH_EP93XX)
++      seq_printf(m, "Revision\t: %04x\n",
++           ep93xx_chip_revision());
++      seq_printf(m, "Serial\t\t: %016x\n",
++           *((unsigned int *)EP93XX_SECURITY_UNIQID));
++#else
+       seq_printf(m, "Revision\t: %04x\n", system_rev);
+       seq_printf(m, "Serial\t\t: %08x%08x\n",
+                  system_serial_high, system_serial_low);
++#endif
+ 
+       return 0;
+ }
+--- a/arch/arm/mach-ep93xx/soc.h
++++ b/arch/arm/mach-ep93xx/soc.h
+@@ -82,8 +82,6 @@
+ #define EP93XX_I2S_PHYS_BASE          EP93XX_APB_PHYS(0x00020000)
+ #define EP93XX_I2S_BASE                       EP93XX_APB_IOMEM(0x00020000)
+ 
+-#define EP93XX_SECURITY_BASE          EP93XX_APB_IOMEM(0x00030000)
+-
+ #define EP93XX_AAC_PHYS_BASE          EP93XX_APB_PHYS(0x00080000)
+ #define EP93XX_AAC_BASE                       EP93XX_APB_IOMEM(0x00080000)
+ 
+--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
++++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+@@ -38,4 +38,8 @@
+ #define EP93XX_UART3_PHYS_BASE                EP93XX_APB_PHYS(0x000e0000)
+ #define EP93XX_UART3_BASE             EP93XX_APB_IOMEM(0x000e0000)
+ 
++#define EP93XX_SECURITY_BASE          EP93XX_APB_IOMEM(0x00030000)
++#define EP93XX_SECURITY_REG(x)                (EP93XX_SECURITY_BASE + (x))
++#define EP93XX_SECURITY_UNIQID                EP93XX_SECURITY_REG(0x2440)
++
+ #endif