arm: mvebu: add multiple usb-hostcontroller support for AXP

This patch adds support for multiple hostcontrollers to the ehci-marvell driver
and enables all 3 usb-hcs on the db-mv784mp-gp board.

It depends on the initial Armada XP usb support patch from Stefan.

Signed-off-by: Anton Schubert <anton.schubert@gmx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

drivers/usb/host/ehci-marvell.c

@@ -38,13 +38,14 @@ DECLARE_GLOBAL_DATA_PTR;
 #define MVUSB0_BASE					\
 	(mvebu_soc_family() == MVEBU_SOC_A38X ?		\
 	 MVEBU_USB20_BASE : MVEBU_AXP_USB_BASE)
+#define MVUSB_BASE(port)	MVUSB0_BASE + ((port) << 12)
 
 /*
  * Once all the older Marvell SoC's (Orion, Kirkwood) are converted
  * to the common mvebu archticture including the mbus setup, this
  * will be the only function needed to configure the access windows
  */
-static void usb_brg_adrdec_setup(void)
+static void usb_brg_adrdec_setup(int index)
 {
 	const struct mbus_dram_target_info *dram;
 	int i;
@@ -52,8 +53,8 @@ static void usb_brg_adrdec_setup(void)
 	dram = mvebu_mbus_dram_info();
 
 	for (i = 0; i < 4; i++) {
-		writel(0, MVUSB0_BASE + USB_WINDOW_CTRL(i));
-		writel(0, MVUSB0_BASE + USB_WINDOW_BASE(i));
+		writel(0, MVUSB_BASE(index) + USB_WINDOW_CTRL(i));
+		writel(0, MVUSB_BASE(index) + USB_WINDOW_BASE(i));
 	}
 
 	for (i = 0; i < dram->num_cs; i++) {
@@ -62,14 +63,16 @@ static void usb_brg_adrdec_setup(void)
 		/* Write size, attributes and target id to control register */
 		writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
 		       (dram->mbus_dram_target_id << 4) | 1,
-		       MVUSB0_BASE + USB_WINDOW_CTRL(i));
+		       MVUSB_BASE(index) + USB_WINDOW_CTRL(i));
 
 		/* Write base address to base register */
-		writel(cs->base, MVUSB0_BASE + USB_WINDOW_BASE(i));
+		writel(cs->base, MVUSB_BASE(index) + USB_WINDOW_BASE(i));
 	}
 }
 #else
-static void usb_brg_adrdec_setup(void)
+#define MVUSB_BASE(port)	MVUSB0_BASE
+
+static void usb_brg_adrdec_setup(int index)
 {
 	int i;
 	u32 size, base, attrib;
@@ -118,9 +121,9 @@ static void usb_brg_adrdec_setup(void)
 int ehci_hcd_init(int index, enum usb_init_type init,
 		struct ehci_hccr **hccr, struct ehci_hcor **hcor)
 {
-	usb_brg_adrdec_setup();
+	usb_brg_adrdec_setup(index);
 
-	*hccr = (struct ehci_hccr *)(MVUSB0_BASE + 0x100);
+	*hccr = (struct ehci_hccr *)(MVUSB_BASE(index) + 0x100);
 	*hcor = (struct ehci_hcor *)((uint32_t) *hccr
 			+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
 

include/configs/db-mv784mp-gp.h

@@ -47,6 +47,7 @@
 #define CONFIG_USB_STORAGE
 #define CONFIG_USB_EHCI_MARVELL
 #define CONFIG_EHCI_IS_TDI
+#define CONFIG_USB_MAX_CONTROLLER_COUNT 3
 
 /* SPI NOR flash default params, used by sf commands */
 #define CONFIG_SF_DEFAULT_SPEED		1000000