From 92aecfa95523384923b52c8ddaf948fc02a53e82 Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Thu, 27 Mar 2008 14:51:39 -0400 Subject: [PATCH] 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 Reviewed-by: Tzachi Perelstein Acked-by: Russell King Signed-off-by: Nicolas Pitre --- arch/arm/mach-orion/addr-map.c | 49 --------------------------- arch/arm/mach-orion/common.c | 8 ++++- arch/arm/mach-orion/common.h | 1 - drivers/usb/host/ehci-orion.c | 36 ++++++++++++++++++-- include/asm-arm/arch-orion/platform.h | 9 +++++ 5 files changed, 50 insertions(+), 53 deletions(-) diff --git a/arch/arm/mach-orion/addr-map.c b/arch/arm/mach-orion/addr-map.c index 69cd0876f6b9..40bcb986ab96 100644 --- a/arch/arm/mach-orion/addr-map.c +++ b/arch/arm/mach-orion/addr-map.c @@ -103,15 +103,6 @@ #define ETH_MAX_WIN 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 */ @@ -262,46 +253,6 @@ void __init orion_setup_cpu_wins(void) 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 cc16588e8c0c..d33c01dfc3f2 100644 --- a/arch/arm/mach-orion/common.c +++ b/arch/arm/mach-orion/common.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "common.h" /***************************************************************************** @@ -149,6 +150,10 @@ static struct resource orion_ehci1_resources[] = { }, }; +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 @@ static struct platform_device orion_ehci0 = { .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 @@ static struct platform_device orion_ehci1 = { .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 @@ void __init orion_init(void) * 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 961daaa0b91b..c100355754f3 100644 --- a/arch/arm/mach-orion/common.h +++ b/arch/arm/mach-orion/common.h @@ -33,7 +33,6 @@ extern struct mbus_dram_target_info orion_mbus_dram_info; 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 e129981f139f..0f0eb89c8cf3 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -11,15 +11,19 @@ #include #include #include +#include #include +#include #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 @@ static const struct hc_driver ehci_orion_hc_driver = { .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; @@ -226,6 +252,12 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev) ehci->is_tdi_rh_tt = 1; 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 */ diff --git a/include/asm-arm/arch-orion/platform.h b/include/asm-arm/arch-orion/platform.h index 143c38e2fa0b..0e33fe536ef7 100644 --- a/include/asm-arm/arch-orion/platform.h +++ b/include/asm-arm/arch-orion/platform.h @@ -11,6 +11,14 @@ #ifndef __ASM_ARCH_PLATFORM_H__ #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 */ @@ -22,4 +30,5 @@ struct orion_nand_data { u8 width; /* buswidth */ }; + #endif