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Signed-off-by: Russell Robinson Jr <rrobinson@phytec.com>
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Add IOMUX definiation and initialization.
Add the iomux initialization support for Faraday.
Define the io pad settings for some function modules. Those
pad ctrl settings may need to adjust during the feature tuning
process.
Signed-off-by: Jason Jin <Jason.jin@freescale.com>
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Update the PAD settings to lower pull-up resistor as this was
causing WP to not be detected.
Signed-off-by: Mahesh Mahadevan <r9aadq@freescale.com>
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Increase the number of bits for Pad configuration by one
[Jason]: Merged conflict, removing the dumplicated def for NO_PAD_CTRL
Signed-off-by: Mahesh Mahadevan <r9aadq@freescale.com>
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MSL code for bring up MX6 sabreauto board with Single core.
Merged from testbuild:imx6_bringup branch.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Ranjani Vaidyanathan <ra5478@freescale.com>
Singed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
Signed-off-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Anish Trivedi <anish@freescale.com>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Jason Chen <b02280@freescale.com>
Signed-off-by: Lily Zhang <r58066@freescale.com>
Signed-off-by: Sammy He <r62914@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Terry Lv <r65388@freescale.com>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Zeng Zhaoming <b32542@freescale.com>
Merged-by: Zeng Zhaoming <b32542@freescale.com>
Reviewed-by: Jason Liu <r64343@freescale.com>
Reviewed-by: Frank Li <Frank.Li@freescale.com>
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commit 6571534b600b8ca1936ff5630b9e0947f21faf16 upstream.
To configure pads during the initialisation a set of special constants
is used, e.g.
#define MX25_PAD_FEC_MDIO__FEC_MDIO IOMUX_PAD(0x3c4, 0x1cc, 0x10, 0, 0, PAD_CTL_HYS | PAD_CTL_PUS_22K_UP)
The problem is that no pull-up/down is getting activated unless both
PAD_CTL_PUE (pull-up enable) and PAD_CTL_PKE (pull/keeper module
enable) set. This is clearly stated in the i.MX25 datasheet and is
confirmed by the measurements on hardware. This leads to some rather
hard to understand bugs such as misdetecting an absent ethernet PHY (a
real bug i had), unstable data transfer etc. This might affect mx25,
mx35, mx50, mx51 and mx53 SoCs.
It's reasonable to expect that if the pullup value is specified, the
intention was to have it actually active, so we implicitly add the
needed bits.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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commit 425933b30b0ccfac58065bca6c853ea627443cdf upstream.
iomux-v3.c uses NO_PAD_CTRL as a 32 bit value
so it should not be shifted left by MUX_PAD_CTRL_SHIFT(41)
Previously, anything requesting NO_PAD_CTRL would get
their pad control register set to 0.
Since it is a pad control mask, place it with the other mask values.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Lothar Waßmann <LW@KARO-electronics.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This iomux file has been constructed from the Freescale pinmux tool.
It contains all pins from the tool, but the datasheet lists some
configurations not present in the tool, these are not yet added.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This patch actually replaces the 'struct pad_desc' with a u64 cookie
to facilitate adding platform specific pad_ctrl settings to an
existing pad definition.
So, instead of:
iomux_v3_cfg_t power_key = MX51_PAD_EIM_A27__GPIO_2_21;
power_key.pad_ctrl = MX51_GPIO_PAD_CTRL_2;
mxc_iomux_v3_setup_pad(&power_key);
one can write:
mxc_iomux_v3_setup_pad((MX51_PAD_EIM_A27__GPIO_2_21 & ~MUX_PAD_CTRL_MASK) | MX51_GPIO_PAD_CTRL_2);
Patch applies to branch 'imx-for-2.6.38' of git://git.pengutronix.de/git/imx/linux-2.6
Signed-Off-By: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The following patch is a first step to convert the 'struct pad_desc'
to a bitmapped cookie to facilitate adding platform specific pullup or
drive strength definitions to existing pad definitions without need to
rewrite the complete pad def.
The patch wraps 'struct pad_desc' in an opaque data type and
introduces macros to access the individual members.
This patch does not constitute any functional change!
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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These GPIO bank offsets are useful when define a gpio number.
E.G. when GPIO PORTC pin 6 is used for irq request pin of external
expanding device, we can define it like:
#define EXP_PARENT_IRQ_PIN (GPIO_PORTC + 6)
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Add basic clock support, cpu identification, I/O mapping, interrupt
controller, serial port and ethernet.
Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
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The current model does not allow to put a pad into different modes
once a pins is allocated. Remove the resource handling.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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also, check for a valid pad_ctrl_ofs before changing the
pad control register.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The old defines leaked in from an old version of the patch.
Change the defines to match the register layout of the iomuxer.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This iomux is called iomux-v3 in the tree because it is the third known
incarnation of MXC iomuxers. It is not only found on the MX35 but also
on the MX51 and probably others.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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