Putting zero length array at the end of struct is a common technique
to embed arbitrary length of members. There is no good reason to let
regmap_alloc_count() branch by "if (count <= 1)".
As far as I understood the code, regmap->base is an alias of
regmap->ranges[0].start, but it is not helpful but make the code
just ugly.
Rename regmap_alloc_count() to regmap_alloc() because the _count
suffix seems pointless.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: fixup cpu_info-rcar.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
When no PHYs are declared in the dwc3 node, the phy init fails.
This patch checks if the "phys" property is presend and reports
the error returned by dev_count_phandle_with_args().
This patchs also fixes the styles issues added in last commit.
This patch should fix the DWC3 support on the UniPhier SoC family.
Fixes: 7c839ea70c ("usb: host: dwc3: Add support for multiple PHYs")
Reported-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
The disabled clk API returns -ENOSYS unlike the reset API returning -ENOTSUPP.
Fixes: ca7fdc8b12 ("usb: host: Add simple of glue driver for DWC3 USB Controllers integration")
Reported-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
DWC3 Ips can have more than 1 PHY for USB2 and 1 PHY for USB3, add support
for a generic number of PHYs and adapt the code to handle a generic
number of PHYs.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This is a port of the dwc3-of-simple driver from Linux to enable/deassert
clock and resets of a simple DWC3 Controller HW glue.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This patch increases timeout to 2s.
It was seen on 2 USB devices (Verbatim STORE N GO 070B4AED0FB22358 and
USB DISK 2.0 9000729BA41DDF40) that the request sense command takes
between 1.3s and and 1.5s.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This patch adds an interface to disable the power in dwc2 driver.
This new interface is called when the device is removed.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Factorize PHY get/init/poweron and PHY poweroff/exit operations
into separate function, it simplify the error path.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Add generic_phy_power_on() and generic_phy_power_off()
calls to switch ON/OFF phy during probe and remove functions.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Factorize PHY get/init/poweron and PHY poweroff/exit operations
into separate function, it simplify the error path.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
ppc4xx support was removed some time ago. Lets remove the now unused
EHCI driver and all its references for this platform as well.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Marek Vasut <marex@denx.de>
DWC3 USB3 controllers will need USB3 PHY to be enabled, in addition to
USB2 PHY, to be functional. Therefore enable USB3 PHY when available.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Refractor PHY get/init/poweron and PHY poweroff/exit operations into
separate function so that its easy to support multiple PHYs.
Signed-off-by: Vignesh R <vigneshr@ti.com>
It is wrong that expect .phy_init() to also power on the PHY. Therefore,
explicitly, call generic_phy_power_on() after generic_phy_power_init() in
order to power on PHY before using it.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
If we use hardware with very small RAM (let's consider just a couple
of hundreds of kB but not megabytes) it is not super convenient to lose
64kB for statically allocated bufer which most probably won't be used
as big as it is. Typically we'll have much shorter data packages to
excahnge and in the worst case longer packets will be split on separate
transactions.
For those corner-cases user will be able to set his buffer size of
choice via USB_DWC2_BUFFER_SIZE option in menuconfig.
By default we'll use 64 kB as it was hard-coeded before so existing
users shouldn't be affected at all.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Marek Vasut <marex@denx.de>
Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
board_usb_init()/_cleanup() should be in board files and don't have
a place in the xhci-omap driver. Weak versions for
board_usb_init()/_cleanup() already exist in common/usb.c
(for host mode) and drivers/usb/gadget/g_dnl.c (for gadget mode).
Therefore, remove init and cleanup functions from xhci-omap and
implement them in the board files.
Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
For some reason from day one we used to have both CONFIG_DWC2_UTMI_WIDTH
mentioned in dwc2.h and in scripts/config_whitelist.txt but never really used
and CONFIG_DWC2_UTMI_PHY_WIDTH used in real code in dwc2.c (but never
defined).
Moreover even though CONFIG_DWC2_UTMI_WIDTH might be either 8 or 16
depending on hardware (and the same is said in a comment for it in
dwc2.h) but then 8 is hardcoded in the header leaving no ability to
override this value in board's configuration.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Marek Vasut <marex@denx.de>
The variable hcd_name is unsued, drop.
Cc: Marek Vasut <marex@denx.de>
Cc: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
ehci_writel() swaps the arguments for address and value. One call
in ehci-mxs ignores that.
This fixes the warning:
drivers/usb/host/ehci-mxs.c: In function ?ehci_hcd_stop?:
drivers/usb/host/ehci-mxs.c:159:19: error: initialization makes integer from pointer without a cast [-Werror=int-conversion]
ehci_writel(tmp, &hcor->or_usbcmd);
^
arch/arm/include/asm/io.h:117:34: note: in definition of macro ?writel?
#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
^
drivers/usb/host/ehci-mxs.c:159:2: note: in expansion of macro ?ehci_writel?
^~~~~~~~~~~
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Bool initializations should use true and false.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Marek Vasut <marex@denx.de>
wait_for_bit callers use the 32 bit LE version
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
When enable CONFIG_HAS_FSL_DR_USB, we might encounter below compile
warning, apply this patch can fix it:
drivers/usb/host/ehci-fsl.c:109:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
((u32)hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
^
drivers/usb/host/ehci-fsl.c:108:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
hcor = (struct ehci_hcor *)
^
drivers/usb/host/ehci-fsl.c:115:8: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
(u32)hccr, (u32)hcor,
^
include/log.h:131:26: note: in definition of macro 'debug_cond'
printf(pr_fmt(fmt), ##args); \
^~~~
drivers/usb/host/ehci-fsl.c:114:2: note: in expansion of macro 'debug'
debug("ehci-fsl: init hccr %x and hcor %x hc_length %d\n",
^~~~~
drivers/usb/host/ehci-fsl.c:115:19: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
(u32)hccr, (u32)hcor,
^
include/log.h:131:26: note: in definition of macro 'debug_cond'
printf(pr_fmt(fmt), ##args); \
^~~~
drivers/usb/host/ehci-fsl.c:114:2: note: in expansion of macro 'debug'
debug("ehci-fsl: init hccr %x and hcor %x hc_length %d\n",
^~~~~
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
While the USB HW in the RZ/A is basically the same, there are some
differences from the original versions that were in the SH SoCs.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Its a valid use case to call ehci_submit_async() with a NULL buffer
with length 0. E.g. from usb_set_configuration().
As invalidate_dcache_range() isn't able to judge if the address
NULL is valid or not (depending on the SoC hardware configuration it
might be valid) do the check in ehci_submit_async() as here we know
that we don't have to invalidate such a buffer.
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Currently we check in ehci_shutdown() if ctrl is NULL after
dereferencing it.
Before this we have already dereferenced ctrl, ctrl->hccr,
and ctrl->hcor in ehci_get_portsc_register(), ehci_submit_root(),
and hci_common_init().
A better approach is to already check ctrl, ctrl->hccr, and ctrl->hcor
during the initialization in ehci_register() and usb_lowlevel_init()
and signal an error here via the return code.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Add firmware V3, firmware loader and XHCI glue for the Renesas R-Car
Gen3 SoCs XHCI controller. Thus far only the R-Car Gen3 R8A7795 ES2.0+
and R8A7796 are supported.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Commit 9000eddbae ("drivers/usb/ehci: Use platform-specific accessors")
broke USB 2.0 on big-endian platforms because for them writel/readl()
does automatic conversion of BE data to LE.
Proper implementation requires to use "raw" variant of these accessors
which read/write data without messing with endianess.
While at it replace cpu_to_be32() to be32_to_cpu() in readl() to
keep sane semantics.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Marek Vasut <marex@denx.de>
Reported-by: Vladimir Boroda <boroda@yahoo.com>
This makes the initial changes need to support the
a38x series of SOCs. It adds the device-tree identifier
as well as changing the board_support function to take
the IO address designated by device-tree.
Signed-off-by: Jon Nettleton <jon@solid-run.com>
[baruch: use fdt_addr_t; update 37xx and 8K implementations]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
use Kconfig to select xhci accordingly.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <york.sun@nxp.com>
U-Boot widely uses error() as a bit noisier variant of printf().
This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:
# define __compiletime_error(message) __attribute__((error(message)))
This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux. (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)
Let's convert error() into now treewide-available pr_err().
Done with the help of Coccinelle, excluing tools/ directory.
The semantic patch I used is as follows:
// <smpl>
@@@@
-error
+pr_err
(...)
// </smpl>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
Since we use EHCI generic driver on RCar Gen3 , this driver is useless.
Remove it.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
