[U-Boot] [PATCH v9 0/5] usb: add Faraday EHCI & Gadget support

[Kuo-Jung Su]

From: Kuo-Jung Su <dantesu at faraday-tech.com>

This patch adds support to both Faraday FUSBH200 and FOTG210,
the differences between Faraday EHCI and standard EHCI are
listed bellow:

1. The PORTSC starts at 0x30 instead of 0x44.
2. The CONFIGFLAG(0x40) is not only un-implemented, and
   also has its address removed.
3. Faraday EHCI is a TDI design, but it doesn't
   compatible with the general TDI implementation
   found at both U-Boot and Linux.
4. The ISOC descriptors differs from standard EHCI in
   several ways. But since U-boot doesn't support ISOC,
   we don't have to worry about that.

The Faraday FOTG210 is an OTG chip which could operate
as either an EHCI Host or a USB Device at a time.

Changes for v9:
   - ehci-hcd: prevent bad PORTSC register access
     in ehci_submit_root()
   - ehci-hcd: drop the quick fix to 'port=-1'
     from ehci_get_portsc_register().
   - ehci-faraday: drop the quick fix to 'port=-1'

Changes for v8:
   - ehci-faraday: ehci_get_portsc_register():
     Bug fixed, only port=0 is accepted.

Changes for v7:
   - Rebase to u-boot-bbd0f7e3ba66d288a2f146f1c7797801e04598ae,
     and also make sure it's compatible to
     u-boot-usb-dc69e46302a36e60e2417bba8c6ea78761a37ebf.
   - Update TDI aliased functions, since there is another
     similar patch had been committed and acceptted.
   - ehci-hcd: ehci_get_portsc_register(): make sure port is always >= 0

Changes for v6:
   - usb_hub: Simplify CONFIG_USB_HUB_MIN_POWER_ON_DELAY
     default value setup.
   - ehci-hcd: Simplify weak aliased function declaration
   - ehci-hcd: Drop redundant line feed

Changes for v5:
   - Split up EHCI changeset
   - usb_hub: replace the Faraday EHCI ifdef for the long delay
     in usb_hub_configure() with the new configuration option:
     USB_HUB_MIN_POWER_ON_DELAY, which is used in usb_hub_power_on()
     to control the minimum usb hub power-on delay.
   - ehci-faraday: fix the invalid multi-line comment style.
   - gadget-fotg210: coding style cleanup.
   - gadget-fotg210: drop postfix '__iomem' from struct fotg210_regs
   - gadget-fotg210: use permanent delay for hardware reset
   - gadget-fotg210: drop '#ifndef CONFIG_SYS_DCACHE_OFF'
   - gadget-fotg210: drop magic numbers

Changes for v4:
   - Use only macro constants and named bit/mask
   - Use weak-aliased functions for tdi implementation and
     also portsc registers to avoid poluting ehci.h with ifdefs

Changes for v3:
   - Coding Style cleanup.
   - Drop bit fields from c struct.
   - Drop macros for wirtel()/readl(), call them directly.
   - Always insert a blank line between declarations and code.
   - Replace all the infinite wait loop with a timeout.
   - Add '__iomem' to all the declaration of HW register pointers.

Changes for v2:
   - Coding Style cleanup.
   - Use readl(), writel(), clrsetbits_le32() to replace REG() macros.
   - Use structure based hardware registers to replace the macro constants.
   - Replace BIT() with BIT_MASK().
   - echi-faraday: Remove debug codes.

Kuo-Jung Su (5):
  usb: ehci: prevent bad PORTSC register access
  usb: ehci: add weak-aliased function for PORTSC
  usb: hub: make minimum power-on delay configurable
  usb: ehci: add Faraday USB 2.0 EHCI support
  usb: gadget: add Faraday FOTG210 USB gadget support

 README                            |    3 +
 common/usb_hub.c                  |   15 +-
 drivers/usb/gadget/Makefile       |    1 +
 drivers/usb/gadget/fotg210.c      |  948 +++++++++++++++++++++++++++++++++++++
 drivers/usb/gadget/gadget_chips.h |    8 +
 drivers/usb/host/Makefile         |    1 +
 drivers/usb/host/ehci-faraday.c   |  148 ++++++
 drivers/usb/host/ehci-hcd.c       |   34 +-
 include/usb/fotg210.h             |  364 ++++++++++++++
 include/usb/fusbh200.h            |   61 +++
 10 files changed, 1575 insertions(+), 8 deletions(-)
 create mode 100644 drivers/usb/gadget/fotg210.c
 create mode 100644 drivers/usb/host/ehci-faraday.c
 create mode 100644 include/usb/fotg210.h
 create mode 100644 include/usb/fusbh200.h

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1.7.9.5