ehci-orion: mbus decode window support
Make it possible to pass mbus_dram_target_info to the ehci-orion
driver via the platform data, make the ehci-orion driver program
the window registers based on this data if it is passed in, and
make the Orion platform setup code use this method instead of
programming the EHCI mbus window registers by hand.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c
index 69cd087..40bcb98 100644
--- a/arch/arm/mach-orion/addr-map.c
+++ b/arch/arm/mach-orion/addr-map.c
@@ -104,15 +104,6 @@
#define ETH_MAX_REMAP_WIN 4
/*
- * USB Address Decode Windows registers
- */
-#define USB_WIN_CTRL(i, w) ((i == 0) ? ORION_USB0_REG(0x320 + ((w) << 4)) \
- : ORION_USB1_REG(0x320 + ((w) << 4)))
-#define USB_WIN_BASE(i, w) ((i == 0) ? ORION_USB0_REG(0x324 + ((w) << 4)) \
- : ORION_USB1_REG(0x324 + ((w) << 4)))
-#define USB_MAX_WIN 4
-
-/*
* SATA Address Decode Windows registers
*/
#define SATA_WIN_CTRL(win) ORION_SATA_REG(0x30 + ((win) * 0x10))
@@ -262,46 +253,6 @@
orion_mbus_dram_info.num_cs = cs;
}
-void __init orion_setup_usb_wins(void)
-{
- int i;
- u32 usb_if, dev, rev;
- u32 max_usb_if = 1;
-
- orion_pcie_id(&dev, &rev);
- if (dev == MV88F5182_DEV_ID)
- max_usb_if = 2;
-
- for (usb_if = 0; usb_if < max_usb_if; usb_if++) {
- /*
- * First, disable and clear windows
- */
- for (i = 0; i < USB_MAX_WIN; i++) {
- orion_write(USB_WIN_BASE(usb_if, i), 0);
- orion_write(USB_WIN_CTRL(usb_if, i), 0);
- }
-
- /*
- * Setup windows for DDR banks.
- */
- for (i = 0; i < DDR_MAX_CS; i++) {
- u32 base, size;
- size = orion_read(DDR_SIZE_CS(i));
- base = orion_read(DDR_BASE_CS(i));
- if (size & DDR_BANK_EN) {
- base = DDR_REG_TO_BASE(base);
- size = DDR_REG_TO_SIZE(size);
- orion_write(USB_WIN_CTRL(usb_if, i),
- ((size-1) & 0xffff0000) |
- (ATTR_DDR_CS(i) << 8) |
- (TARGET_DDR << 4) | WIN_EN);
- orion_write(USB_WIN_BASE(usb_if, i),
- base & 0xffff0000);
- }
- }
- }
-}
-
void __init orion_setup_eth_wins(void)
{
int i;
diff --git a/arch/arm/mach-orion/common.c b/arch/arm/mach-orion/common.c
index cc16588..d33c01d 100644
--- a/arch/arm/mach-orion/common.c
+++ b/arch/arm/mach-orion/common.c
@@ -23,6 +23,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/platform.h>
#include "common.h"
/*****************************************************************************
@@ -149,6 +150,10 @@
},
};
+static struct orion_ehci_data orion_ehci_data = {
+ .dram = &orion_mbus_dram_info,
+};
+
static u64 ehci_dmamask = 0xffffffffUL;
static struct platform_device orion_ehci0 = {
@@ -157,6 +162,7 @@
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = 0xffffffff,
+ .platform_data = &orion_ehci_data,
},
.resource = orion_ehci0_resources,
.num_resources = ARRAY_SIZE(orion_ehci0_resources),
@@ -168,6 +174,7 @@
.dev = {
.dma_mask = &ehci_dmamask,
.coherent_dma_mask = 0xffffffff,
+ .platform_data = &orion_ehci_data,
},
.resource = orion_ehci1_resources,
.num_resources = ARRAY_SIZE(orion_ehci1_resources),
@@ -334,7 +341,6 @@
* Setup Orion address map
*/
orion_setup_cpu_wins();
- orion_setup_usb_wins();
orion_setup_eth_wins();
if (dev == MV88F5182_DEV_ID)
orion_setup_sata_wins();
diff --git a/arch/arm/mach-orion/common.h b/arch/arm/mach-orion/common.h
index 961daaa..c100355 100644
--- a/arch/arm/mach-orion/common.h
+++ b/arch/arm/mach-orion/common.h
@@ -33,7 +33,6 @@
void orion_setup_cpu_win(enum orion_target target, u32 base, u32 size, int remap);
void orion_setup_cpu_wins(void);
void orion_setup_eth_wins(void);
-void orion_setup_usb_wins(void);
void orion_setup_sata_wins(void);
/*
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index e129981..0f0eb89 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -11,15 +11,19 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/mbus.h>
#include <asm/arch/orion.h>
+#include <asm/arch/platform.h>
#define rdl(off) __raw_readl(hcd->regs + (off))
#define wrl(off, val) __raw_writel((val), hcd->regs + (off))
-#define USB_CAUSE 0x310
-#define USB_MASK 0x314
#define USB_CMD 0x140
#define USB_MODE 0x1a8
+#define USB_CAUSE 0x310
+#define USB_MASK 0x314
+#define USB_WINDOW_CTRL(i) (0x320 + ((i) << 4))
+#define USB_WINDOW_BASE(i) (0x324 + ((i) << 4))
#define USB_IPG 0x360
#define USB_PHY_PWR_CTRL 0x400
#define USB_PHY_TX_CTRL 0x420
@@ -162,8 +166,30 @@
.bus_resume = ehci_bus_resume,
};
+static void __init
+ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
+ struct mbus_dram_target_info *dram)
+{
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ wrl(USB_WINDOW_CTRL(i), 0);
+ wrl(USB_WINDOW_BASE(i), 0);
+ }
+
+ for (i = 0; i < dram->num_cs; i++) {
+ struct mbus_dram_window *cs = dram->cs + i;
+
+ wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) |
+ (cs->mbus_attr << 8) |
+ (dram->mbus_dram_target_id << 4) | 1);
+ wrl(USB_WINDOW_BASE(i), cs->base);
+ }
+}
+
static int __init ehci_orion_drv_probe(struct platform_device *pdev)
{
+ struct orion_ehci_data *pd = pdev->dev.platform_data;
struct resource *res;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
@@ -227,6 +253,12 @@
ehci->sbrn = 0x20;
/*
+ * (Re-)program MBUS remapping windows if we are asked to.
+ */
+ if (pd != NULL && pd->dram != NULL)
+ ehci_orion_conf_mbus_windows(hcd, pd->dram);
+
+ /*
* setup Orion USB controller
*/
orion_usb_setup(hcd);
diff --git a/include/asm-arm/arch-orion/platform.h b/include/asm-arm/arch-orion/platform.h
index 143c38e..0e33fe5 100644
--- a/include/asm-arm/arch-orion/platform.h
+++ b/include/asm-arm/arch-orion/platform.h
@@ -12,6 +12,14 @@
#define __ASM_ARCH_PLATFORM_H__
/*
+ * Orion EHCI platform driver data.
+ */
+struct orion_ehci_data {
+ struct mbus_dram_target_info *dram;
+};
+
+
+/*
* Device bus NAND private data
*/
struct orion_nand_data {
@@ -22,4 +30,5 @@
u8 width; /* buswidth */
};
+
#endif