Commit graph

17 commits

Author SHA1 Message Date
Stephen Warren
8f83759fac ARM: tegra210: set PLLE_PTS bit when enabling PLLE
This bit needs to be set for system suspend/resume to work. This setting
will be documented in an updated TRM at some time in the future.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-03-29 09:57:57 -07:00
Stephen Warren
e1cf527802 ARM: tegra: note that p2371-2180 is Jetson TX1
p2371-2180 is the engineering board name for the Jetson TX1 developer
kit. Update Kconfig description and help text to make this obvious to
everyone.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-11-12 09:27:16 -07:00
Stephen Warren
f35cb12511 ARM: tegra: error check Tegra210 XUSB padctl waits
Add code to detect timeouts when waiting for HW events such as PLL
lock done. Any errors are logged and trigger an error return code.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-11-12 09:21:07 -07:00
Stephen Warren
4e4b5574fb ARM: tegra: add lane tables to Tegra210 XUSB padctl
Add the tables defining which pads and mux options exist in the Tegra210
XUSB padctl hardware.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-11-12 09:21:07 -07:00
Stephen Warren
7a908c7e01 ARM: tegra: switch Tegra210 to common XUSB padctl
This change simply deletes code from the Tegra210 XUSB padctl driver that
is already present in the common XUSB padctl code. Since all the arrays
in tegra210_socdata are empty, this update may leave the Tegra210 XUSB
padctl driver non-functional at run-time. However, (a) this driver is not
used yet so no regression can be observed and (b) the next commit will
immediately fix this up.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-11-12 09:21:06 -07:00
Stephen Warren
dfa551e49c ARM: tegra210: implement PLLE init procedure from TRM
Implement the procedure that the TRM mandates to initialize PLLREFE and
PLLE. This makes the PLL actually lock.

Note that this section of the TRM is being cleaned up to remove some
confusion. The set of register accesses in this patch should be final,
although the step numbers/descriptions might still change.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-11-12 09:21:04 -07:00
Thierry Reding
97c02d87f4 ARM: tegra: clk_m is the architected timer source clock
While clk_m and the oscillator run at the same frequencies on Tegra114
and Tegra124, clk_m is the proper source for the architected timer. On
more recent Tegra generations, Tegra210 and later, both the oscillator
and clk_m can run at different frequencies. clk_m will be divided down
from the oscillator.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-09-16 16:10:22 -07:00
Thierry Reding
c043c0259c ARM: tegra: Implement clk_m
On currently supported SoCs, clk_m always runs at the same frequency as
the oscillator input. However newer SoC generations such as Tegra210 no
longer have that restriction. Prepare for that by separating clk_m from
the oscillator clock and allow SoC code to override the clk_m rate.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-09-16 16:10:22 -07:00
Stephen Warren
2573428140 ARM: tegra: Add p2371-2180 board
P2371-2180 is a P2180 CPU board married to a P2597 I/O board. The
combination contains SoC, DRAM, eMMC, SD card slot, HDMI, USB
micro-B port, Ethernet via USB3, USB3 host port, SATA, PCIe, and
two GPIO expansion headers.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-09-16 16:10:22 -07:00
Simon Glass
5a30cee5d0 tegra: Correct logic for reading pll_misc in clock_start_pll()
The logic for simple PLLs on T124 was broken by this commit:

  722e000c Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc.

Correct it by reading from the same pll_misc register that it writes to and
adding an entry for the DP PLL in the pllinfo table.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-13 13:06:04 -07:00
Stephen Warren
f05fa6781a ARM: tegra: Add p2371-0000 board
P2371-0000 is a P2581 or P2530 CPU board married to a P2595 I/O
board. The combination contains SoC, DRAM, eMMC, SD card slot,
HDMI, USB micro-B port, Ethernet via USB3, USB3 host port, SATA,
a GPIO expansion header, and an analog audio jack.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-06 10:50:04 -07:00
Stephen Warren
b6920095c5 ARM: tegra: Add e2220-1170 board
E2220-1170 is a Tegra210 bringup board with onboard SoC, DRAM,
eMMC, SD card slot, HDMI, USB micro-B port, and sockets for various
expansion modules.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-06 10:50:03 -07:00
Tom Warren
722e000ccd Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc.
Added PLL variables (dividers mask/shift, lock enable/detect, etc.)
to new pllinfo struct for each Soc/PLL. PLLA/C/D/E/M/P/U/X.

Used pllinfo struct in all clock functions, validated on T210.
Should be equivalent to prior code on T124/114/30/20. Thanks
to Marcel Ziswiler for corrections to the T20/T30 values.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-05 15:22:51 -07:00
Tom Warren
3e8650c0f9 Tegra: clocks: Add 38.4MHz OSC support for T210 use
Added 38.4MHz/48MHz entries to pll_x_table for CPU PLL. Needs
to be measured - should be close to 700MHz (1.4G/2).

Note that some freqs aren't in the PLLU table in T210 TRM
(13, 26MHz), so I used the 12MHz table entry for them. They
shouldn't be selected since they're not viable T210 OSC freqs.

Since there are now 2 new OSC defines, all tables (pll_x_table,
PLLU) had to increase by two entries, but since 38.4/48MHz are
not viable osc freqs on T20/30/114, etc, they're just set to 0.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-08-05 15:22:51 -07:00
Tom Warren
873e3ef90b T210: Add support for 64-bit T210-based P2571 board
Based on Venice2, incorporates Stephen Warren's
latest P2571 pinmux table.

With Thierry Reding's 64-bit build fixes, this
will build and and boot in 64-bit on my P2571
(when used with a 32-bit AVP loader).

Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-07-28 10:30:20 -07:00
Tom Warren
6c43f6c8d9 ARM: Tegra210: Add SoC code/include files for T210
All based off of Tegra124. As a Tegra210 board is brought
up, these may change a bit to match the HW more closely,
but probably 90% of this is identical to T124.

Note that since T210 is a 64-bit build, it has no SPL
component, and hence no cpu.c for Tegra210.

Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-07-28 10:30:19 -07:00
Stephen Warren
0edb3a8ec9 ARM: tegra: pinctrl: move Tegra210 code to the correct dir
Patches that added the Tegra210 pinctrl driver and renamed directories
arch/arm/cpu/tegra{$soc}-common -> arch/arm/mach-tegra/tegra-${soc}
crossed. Move the Tegra210 pinctrl driver to the correct location. This
wasn't detected since Tegra210 support is in the process of being added,
and isn't buildable yet.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2015-03-30 09:54:06 -07:00