The filename chip.h has a special purpose with the generation
of static devicetree, where the configuration structure name matches
the path to the chip.h file. For example, soc/intel/skylake/chip.h
defines struct soc_intel_skylake_config.
The renamed file did not follow this convention and the structure it
defines would conflict with one defined soc/intel/common/chip.h if such
is ever added.
Change-Id: Id3d56bf092c6111d2293136865b053b095e92d6b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35657
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Set the controller state to D0 during the i2c init sequence, this ensures
the controller is up and active.
BUG=b:135941367
TEST=Verify no timeouts seen during I2C controller enumeration sequence
Change-Id: I247ede44b8d1d6871e3e813b63f99a7f6398dd72
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34273
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch relying on new rule, ENV_PAYLOAD_LOADER which is set
to ENV_RAMSTAGE.
This approach will help to add future optimization (rampayload) in
coreboot flow if required.
Change-Id: Ib54ece7b9e5f281f8a092dc6f38c07406edfa5fa
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: ron minnich <rminnich@gmail.com>
Cannon lake PCH-H is added to support coffee lake RVP11 and coffee lake
RVP8 platforms.
- Add new device IDs for LPC, PCIE, PMC, I2C, UART, SMBUS, XHCI, P2SB,
SRAM, AUDIO, CSE0, XDCI, SD, MCH and graphics device.
- Add new device IDs to intel common code respectively.
- Add CPU, LPC, GD, MCH entry to report_platform.c to identify RVP11 & RVP8.
- CNL PCH-H supports 24 pcie root ports and 4 I2C controllers, hence chip.c
is modified accordingly.
- Add board type UserBd UPD to BOARD_TYPE_DESKTOP for both RVP11 & RVP8.
BUG=None
TEST=successfully boot both CFL RVP11 & RVP8, verified all the enabled devices
are enumerated and cross checked devices ids in serial logs and UEFI shell.
Change-Id: I4b6af88d467382250aecb4102878b1c5af92ccd4
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28718
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch ensures I2C controllers are out of reset without any
assumptions.
BUG=b:116191230
BRANCH=none
TEST=Dump MMIO offset 0x204 to check if I2C host controller is NOT
at reset (by reading Bit 0-1 as 3)
Change-Id: I4b335a834333e01cfa2d802e4aad0735d0212dcc
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/28762
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Right now dw_i2c_get_soc_cfg() is expecting the SoC to implement
that callback for obtaining the bus config. However, we're currently
forcing another parameter of struct device so one can do the lookup.
This works for Intel-based systems since the struct device was needed
to program the BAR, etc. However, from an API standpoint, it just
complicates matters by needing to obtain the struct device. The SoC
already has knowlege of its own devices so it can get the config
itself by bus number. Therefore, remove that contraint from the API.
BUG=b:70232394
Change-Id: Id8558f5deedda0963a46a532a7bf984e168fb270
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23420
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
In ramstage the device_operations are needed for the i2c designware
host controller. Move the intel/common/block/i2c implementation
into the generic driver so other platforms can take advantage of it.
BUG=b:72121803
Change-Id: Id249933fadcc016bfba00e7a6d65f56dfc220724
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23372
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
We check for NULL from the return of function acpi_device_path
before passing it to acpigen_write_scope to avoid NULL pointer
dereference.
Change-Id: I997461c9b639acc3c323263d304333d3a894267c
Found-by: Klockworks
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/23094
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The SOC_INTEL_COMMON_LPSS_I2C option is no longer used. Likewise, the
SOC_INTEL_COMMON_LPSS_I2C_DEBUG option which is dependent on
SOC_INTEL_COMMON_LPSS_I2C is by definition not used either. Therefore,
remove SOC_INTEL_COMMON_LPSS_I2C and change the name/dependency
for SOC_INTEL_COMMON_LPSS_I2C_DEBUG to SOC_INTEL_COMMON_BLOCK_I2C_DEBUG.
BUG=b:70232394
Change-Id: Icd77f028b77d8f642690a50be4ac2c50d9ef511a
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/22874
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Chris Ching <chingcodes@chromium.org>
Print error message when using common i2c without default clock defined.
TEST=Do not define default clock in Kconfig, compile will stop for
assertion.
Change-Id: I803f97698b3928e6b64df0010e71a6ded1400f87
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22405
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Fix issues reported by coverity scan in the below files.
src/soc/intel/common/block/i2c
1375440: Improper use of negative value
1375441: Improper use of negative value
1375444: Improper use of negative value
src/soc/intel/apollolake/i2c.c
1375442: Unsigned compared against 0
Change-Id: Ic65400c934631e3dcd3aa664c24cb451616e7f4d
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/21875
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Do not use the global platform_i2c_transfer() function that can only be
implemented by a single driver. Instead, make a `struct device` aware
transfer() function the only interface function for I2C controller dri-
vers to implement.
To not force the slave device drivers to be implemented either above
generic I2C or specialized SMBus operations, we support SMBus control-
lers in the slave device interface too.
We start with four simple slave functions: i2c_readb(), i2c_writeb(),
i2c_readb_at() and i2c_writeb_at(). They are all compatible to respec-
tive SMBus functions. But we keep aliases because it would be weird to
force e.g. an I2C EEPROM driver to call smbus_read_byte().
Change-Id: I98386f91bf4799ba3df84ec8bc0f64edd4142818
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20846
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Split `i2c.h` into three pieces to ease reuse of the generic defi-
nitions. No code is changed.
* `i2c.h` - keeps the generic definitions
* `i2c_simple.h` - holds the current, limited to one controller driver
per board, devicetree independent I2C interface
* `i2c_bus.h` - will become the devicetree compatible interface for
native I2C (e.g. non-SMBus) controllers
Change-Id: I382d45c70f9314588663e1284f264f877469c74d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Our current struct for I2C segments `i2c_seg` was close to being compa-
tible to the Linux version `i2c_msg`, close to being compatible to SMBus
and close to being readable (e.g. what was `chip` supposed to mean?) but
turned out to be hard to fix.
Instead of extending it in a backwards compatible way (and not touching
current controller drivers), replace it with a Linux source compatible
`struct i2c_msg` and patch all the drivers and users with Coccinelle.
The new `struct i2c_msg` should ease porting drivers from Linux and help
to write SMBus compatible controller drivers.
Beside integer type changes, the field `read` is replaced with a generic
field `flags` and `chip` is renamed to `slave`.
Patched with Coccinelle using the clumsy spatch below and some manual
changes:
* Nested struct initializers and one field access skipped by Coccinelle.
* Removed assumption in the code that I2C_M_RD is 1.
* In `i2c.h`, changed all occurences of `chip` to `slave`.
@@ @@
-struct i2c_seg
+struct i2c_msg
@@ identifier msg; expression e; @@
(
struct i2c_msg msg = {
- .read = 0,
+ .flags = 0,
};
|
struct i2c_msg msg = {
- .read = 1,
+ .flags = I2C_M_RD,
};
|
struct i2c_msg msg = {
- .chip = e,
+ .slave = e,
};
)
@@ struct i2c_msg msg; statement S1, S2; @@
(
-if (msg.read)
+if (msg.flags & I2C_M_RD)
S1 else S2
|
-if (msg.read)
+if (msg.flags & I2C_M_RD)
S1
)
@@ struct i2c_msg *msg; statement S1, S2; @@
(
-if (msg->read)
+if (msg->flags & I2C_M_RD)
S1 else S2
|
-if (msg->read)
+if (msg->flags & I2C_M_RD)
S1
)
@@ struct i2c_msg msg; expression e; @@
(
-msg.read = 0;
+msg.flags = 0;
|
-msg.read = 1;
+msg.flags = I2C_M_RD;
|
-msg.read = e;
+msg.flags = e ? I2C_M_RD : 0;
|
-!!(msg.read)
+(msg.flags & I2C_M_RD)
|
-(msg.read)
+(msg.flags & I2C_M_RD)
)
@@ struct i2c_msg *msg; expression e; @@
(
-msg->read = 0;
+msg->flags = 0;
|
-msg->read = 1;
+msg->flags = I2C_M_RD;
|
-msg->read = e;
+msg->flags = e ? I2C_M_RD : 0;
|
-!!(msg->read)
+(msg->flags & I2C_M_RD)
|
-(msg->read)
+(msg->flags & I2C_M_RD)
)
@@ struct i2c_msg msg; @@
-msg.chip
+msg.slave
@@ struct i2c_msg *msg; expression e; @@
-msg[e].chip
+msg[e].slave
@ slave disable ptr_to_array @ struct i2c_msg *msg; @@
-msg->chip
+msg->slave
Change-Id: Ifd7cabf0a18ffd7a1def25d1d7059b713d0b7ea9
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20542
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add Cannonlake pci device ids for all the merged intel common code. As
of now only have CNL-U and CNL-Y pci ids.
Change-Id: Iee5087cdeba53919d83ff665d0c417075279294c
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/20823
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
When configuring i2c frequency to I2C_SPEED_FAST_PLUS, observed frequency
was I2C_SPEED_FAST.
This was due to incorrect register programming.
TEST= Build for Soraka, I2C frequency during firmware execution was
I2C_SPEED_FAST_PLUS when configured for I2C_SPEED_FAST_PLUS.
Change-Id: Ib0e08afe0e1b6d8c9961d5e3039b07ada9d30aa3
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/20646
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
If I2C device is disabled:
1. BAR for the device will be 0
2. There is no need to generate ACPI tables for the device
TEST=Verified that if an i2c device is disabled statically in
devicetree or dynamically in mainboard, then coreboot does not die
looking for missing resources.
Change-Id: Id9a790e338a0e6f32c199f5f437203e1525df208
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/20140
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
In the intel/common/block
* Move I2C common code from intel/common to intel/common/block.
* Split the code into common, early init and post mem init stages and put it
in lpss_i2c.c, i2c_early.c and i2c.c respectively.
* Declare functions for getting platform specific i2c bus config and
mapping bus to devfn and vice versa, that have to be implemented by SoC.
In skylake/apollolake
* Stop using code from soc/intel/common/lpss_i2c.c.
* Remove early i2c initialization code from bootblock.
* Refactor i2c.c file to implement SoC specific methods
required by the I2C IP block.
Change-Id: I4d91a04c22e181e3a995112cce6d5f0324130b81
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/19468
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
