[ARM] Orion: programable address map support

The Orion has fully programable address map. There's a separate address
map for each of the device _master_ interfaces, e.g. CPU, PCI, PCIE, USB,
Gigabit Ethernet, DMA/XOR engines, etc.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Nicolas Pitre <nico@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index e04f3f07cac0..69363cbcb63b 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <asm/page.h>
+#include <asm/timex.h>
 #include <asm/mach/map.h>
 #include <asm/arch/orion.h>
 #include "common.h"
@@ -51,3 +52,53 @@ void __init orion_map_io(void)
 {
 	iotable_init(orion_io_desc, ARRAY_SIZE(orion_io_desc));
 }
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+
+/*
+ * Identify device ID and rev from PCIE configuration header space '0'.
+ */
+static void orion_id(u32 *dev, u32 *rev, char **dev_name)
+{
+	orion_pcie_id(dev, rev);
+
+	if (*dev == MV88F5281_DEV_ID) {
+		if (*rev == MV88F5281_REV_D2) {
+			*dev_name = "MV88F5281-D2";
+		} else if (*rev == MV88F5281_REV_D1) {
+			*dev_name = "MV88F5281-D1";
+		} else {
+			*dev_name = "MV88F5281-Rev-Unsupported";
+		}
+	} else if (*dev == MV88F5182_DEV_ID) {
+		if (*rev == MV88F5182_REV_A2) {
+			*dev_name = "MV88F5182-A2";
+		} else {
+			*dev_name = "MV88F5182-Rev-Unsupported";
+		}
+	} else {
+		*dev_name = "Device-Unknown";
+	}
+}
+
+void __init orion_init(void)
+{
+	char *dev_name;
+	u32 dev, rev;
+
+	orion_id(&dev, &rev, &dev_name);
+	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, ORION_TCLK);
+
+	/*
+	 * Setup Orion address map
+	 */
+	orion_setup_cpu_wins();
+	orion_setup_usb_wins();
+	orion_setup_eth_wins();
+	orion_setup_pci_wins();
+	orion_setup_pcie_wins();
+	if (dev == MV88F5182_DEV_ID)
+		orion_setup_sata_wins();
+}