[U-Boot] [PATCH v2 3/6] mpc83xx: USB: Reorganized its support
Vivek Mahajan
vivek.mahajan at freescale.com
Mon May 25 13:53:16 CEST 2009
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 at 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 at 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 */
--
1.5.6.5
More information about the U-Boot
mailing list