The following patch reorganizes/reworks the USB support for mpc83xx as under:-
* Moves the 83xx USB clock init from drivers/usb/host/ehci-fsl.c to cpu/mpx83xx/cpu_init.c
* Board specific usb_phy_type is read from the environment
* Adds USB EHCI specific structure in include/usb/ehci-fsl.h * Copyrights revamped in most of the following files
Signed-off-by: Vivek Mahajan vivek.mahajan@freescale.com --- v2 change: Moved usb_phy_type to CONFIG_EXTRA_ENV_SETTINGS in board specific config file(s).
cpu/mpc83xx/cpu_init.c | 19 ++++++++++++- drivers/usb/host/ehci-fsl.c | 53 ++++++++++++----------------------- include/asm-ppc/immap_83xx.h | 5 ++- include/usb/ehci-fsl.h | 63 +++++++++++++++++++++++++++++++++++++++++- 4 files changed, 102 insertions(+), 38 deletions(-)
diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index 8e9c875..7224c27 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2009 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -23,6 +23,10 @@ #include <common.h> #include <mpc83xx.h> #include <ioports.h> +#ifdef CONFIG_USB_EHCI_FSL +#include <asm/io.h> +#include <usb/ehci-fsl.h> +#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -294,6 +298,19 @@ void cpu_init_f (volatile immap_t * im) im->gpio[1].dat = CONFIG_SYS_GPIO2_DAT; im->gpio[1].dir = CONFIG_SYS_GPIO2_DIR; #endif +#ifdef CONFIG_USB_EHCI_FSL + uint32_t temp; + struct usb_ehci *ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR; + + /* Configure interface. */ + setbits_be32((void *)ehci->control, REFSEL_16MHZ | UTMI_PHY_EN); + + /* Wait for clock to stabilize */ + do { + temp = in_be32((void *)ehci->control); + udelay(1000); + } while (!(temp & PHY_CLK_VALID)); +#endif }
int cpu_init_r (void) diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 39ef435..bf148c4 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -1,4 +1,6 @@ /* + * (C) Copyright 2009 Freescale Semiconductor, Inc. + * * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB * * Author: Tor Krill tor@excito.com @@ -22,12 +24,10 @@ #include <common.h> #include <pci.h> #include <usb.h> -#include <mpc83xx.h> #include <asm/io.h> -#include <asm/bitops.h> +#include <usb/ehci-fsl.h>
#include "ehci.h" -#include <usb/ehci-fsl.h> #include "ehci-core.h"
/* @@ -38,50 +38,33 @@ */ int ehci_hcd_init(void) { - volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; - uint32_t addr, temp; + struct usb_ehci *ehci;
- addr = (uint32_t)&(im->usb[0]); - hccr = (struct ehci_hccr *)(addr + FSL_SKIP_PCI); + ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR; + hccr = (struct ehci_hccr *)((uint32_t)ehci->caplength); hcor = (struct ehci_hcor *)((uint32_t) hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
- /* Configure clock */ - clrsetbits_be32(&(im->clk.sccr), MPC83XX_SCCR_USB_MASK, - MPC83XX_SCCR_USB_DRCM_11); - - /* Confgure interface. */ - temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); - out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp - | REFSEL_16MHZ | UTMI_PHY_EN); - - /* Wait for clock to stabilize */ - do { - temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); - udelay(1000); - } while (!(temp & PHY_CLK_VALID)); - /* Set to Host mode */ - temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE)); - out_le32((void *)(addr + FSL_SOC_USB_USBMODE), temp | CM_HOST); + setbits_le32((void *)ehci->usbmode, CM_HOST);
- out_be32((void *)(addr + FSL_SOC_USB_SNOOP1), SNOOP_SIZE_2GB); - out_be32((void *)(addr + FSL_SOC_USB_SNOOP2), - 0x80000000 | SNOOP_SIZE_2GB); + out_be32((void *)ehci->snoop1, SNOOP_SIZE_2GB); + out_be32((void *)ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
/* Init phy */ - /* TODO: handle different phys? */ - out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + if (!strcmp(getenv("usb_phy_type"), "utmi")) + out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI); + else + out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI);
/* Enable interface. */ - temp = in_be32((void *)(addr + FSL_SOC_USB_CTRL)); - out_be32((void *)(addr + FSL_SOC_USB_CTRL), temp | USB_EN); + setbits_be32((void *)ehci->control, USB_EN);
- out_be32((void *)(addr + FSL_SOC_USB_PRICTRL), 0x0000000c); - out_be32((void *)(addr + FSL_SOC_USB_AGECNTTHRSH), 0x00000040); - out_be32((void *)(addr + FSL_SOC_USB_SICTRL), 0x00000001); + out_be32((void *)ehci->prictrl, 0x0000000c); + out_be32((void *)ehci->age_cnt_limit, 0x00000040); + out_be32((void *)ehci->sictrl, 0x00000001);
- temp = in_le32((void *)(addr + FSL_SOC_USB_USBMODE)); + in_le32((void *)ehci->usbmode);
return 0; } diff --git a/include/asm-ppc/immap_83xx.h b/include/asm-ppc/immap_83xx.h index 7b847f8..df46489 100644 --- a/include/asm-ppc/immap_83xx.h +++ b/include/asm-ppc/immap_83xx.h @@ -1,5 +1,5 @@ /* - * (C) Copyright 2004-2007 Freescale Semiconductor, Inc. + * (C) Copyright 2004-2009 Freescale Semiconductor, Inc. * * MPC83xx Internal Memory Map * @@ -897,4 +897,7 @@ typedef struct immap {
#define CONFIG_SYS_MPC83xx_ESDHC_OFFSET (0x2e000) #define CONFIG_SYS_MPC83xx_ESDHC_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_ESDHC_OFFSET) +#define CONFIG_SYS_MPC83xx_USB_OFFSET 0x23000 +#define CONFIG_SYS_MPC83xx_USB_ADDR \ + (CONFIG_SYS_IMMR + CONFIG_SYS_MPC83xx_USB_OFFSET) #endif /* __IMMAP_83xx__ */ diff --git a/include/usb/ehci-fsl.h b/include/usb/ehci-fsl.h index c429af1..7ae948c 100644 --- a/include/usb/ehci-fsl.h +++ b/include/usb/ehci-fsl.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2005 freescale semiconductor + * Copyright (c) 2005, 2009 Freescale Semiconductor, Inc * Copyright (c) 2005 MontaVista Software * Copyright (c) 2008 Excito Elektronik i Sk=E5ne AB * @@ -22,6 +22,8 @@ #ifndef _EHCI_FSL_H #define _EHCI_FSL_H
+#include <asm/processor.h> + /* Global offsets */ #define FSL_SKIP_PCI 0x100
@@ -83,4 +85,63 @@ #define MPC83XX_SCCR_USB_DRCM_01 0x00100000 #define MPC83XX_SCCR_USB_DRCM_10 0x00200000
+#if defined(CONFIG_MPC83XX) +#define CONFIG_SYS_MPC8xxx_USB_ADDR CONFIG_SYS_MPC83xx_USB_ADDR +#endif + +/* + * USB Registers + */ +struct usb_ehci { + u8 res1[0x100]; + u16 caplength; /* 0x100 - Capability Register Length */ + u16 hciversion; /* 0x102 - Host Interface Version */ + u32 hcsparams; /* 0x104 - Host Structural Parameters */ + u32 hccparams; /* 0x108 - Host Capability Parameters */ + u8 res2[0x14]; + u32 dciversion; /* 0x120 - Device Interface Version */ + u32 dciparams; /* 0x124 - Device Controller Params */ + u8 res3[0x18]; + u32 usbcmd; /* 0x140 - USB Command */ + u32 usbsts; /* 0x144 - USB Status */ + u32 usbintr; /* 0x148 - USB Interrupt Enable */ + u32 frindex; /* 0x14C - USB Frame Index */ + u8 res4[0x4]; + u32 perlistbase; /* 0x154 - Periodic List Base + - USB Device Address */ + u32 ep_list_addr; /* 0x158 - Next Asynchronous List + - End Point Address */ + u8 res5[0x4]; + u32 burstsize; /* 0x160 - Programmable Burst Size */ + u32 txfilltuning; /* 0x164 - Host TT Transmit + pre-buffer packet tuning */ + u8 res6[0x8]; + u32 ulpi_viewpoint; /* 0x170 - ULPI Reister Access */ + u8 res7[0xc]; + u32 config_flag; /* 0x180 - Configured Flag Register */ + u32 portsc; /* 0x184 - Port status/control */ + u8 res8[0x20]; + u32 usbmode; /* 0x1a8 - USB Device Mode */ + u32 epsetupstat; /* 0x1ac - End Point Setup Status */ + u32 epprime; /* 0x1b0 - End Point Init Status */ + u32 epflush; /* 0x1b4 - End Point De-initlialize */ + u32 epstatus; /* 0x1b8 - End Point Status */ + u32 epcomplete; /* 0x1bc - End Point Complete */ + u32 epctrl0; /* 0x1c0 - End Point Control 0 */ + u32 epctrl1; /* 0x1c4 - End Point Control 1 */ + u32 epctrl2; /* 0x1c8 - End Point Control 2 */ + u32 epctrl3; /* 0x1cc - End Point Control 3 */ + u32 epctrl4; /* 0x1d0 - End Point Control 4 */ + u32 epctrl5; /* 0x1d4 - End Point Control 5 */ + u8 res9[0x228]; + u32 snoop1; /* 0x400 - Snoop 1 */ + u32 snoop2; /* 0x404 - Snoop 2 */ + u32 age_cnt_limit; /* 0x408 - Age Count Threshold */ + u32 prictrl; /* 0x40c - Priority Control */ + u32 sictrl; /* 0x410 - System Interface Control */ + u8 res10[0xEC]; + u32 control; /* 0x500 - Control */ + u8 res11[0xafc]; +}; + #endif /* _EHCI_FSL_H */