Commit graph

43 commits

Author SHA1 Message Date
Bin Meng
7ee371063f x86: quark: Generate ACPI FADT/MADT tables
Generate quark platform-specific FADT/MADT tables.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-30 10:21:12 +08:00
Bin Meng
911d6f6932 x86: quark: Assign a unique I/O APIC ID
After power-on, both LAPIC and I/O APIC appear with the same APIC ID
zero, which creates an ID conflict. When generating MP table, U-Boot
reports zero as the LAPIC ID in the processor entry, and zero as the
I/O APIC ID in the I/O APIC as well as the I/O interrupt assignment
entries. Such MP table confuses Linux kernel and finally a kernel
panic is seen during boot:

  BUG: unable to handle kernel paging request at ffff9000
  IP: [<c101d462>] native_io_apic_write+0x22/0x30
  *pdpt = 00000000014fb001 *pde = 00000000014ff067 *pte = 0000000000000000
  Oops: 0002 [#1]
  Modules linked in:
  Pid: 1, comm: swapper Tainted: G        W    3.8.7 #3 intel galileo/galileo
  EIP: 0060:[<c101d462>] EFLAGS: 00010086 CPU: 0
  EIP is at native_io_apic_write+0x22/0x30
  ...
  Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:27:42 +08:00
Bin Meng
0c2b7eef97 x86: Unify reserve_arch() for all x86 boards
Instead of asking each platform to provide reserve_arch(),
supply it in arch/x86/cpu/cpu.c in a unified way.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-05-23 15:18:00 +08:00
Bin Meng
5a257df702 x86: quark: Use Quark's own PCI config APIs
There are still two places in Quark's MRC codes that use the generic
legacy PCI APIs, but as we are phasing out these legacy APIs, switch
to use Quark's own PCI config routines.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-02-05 12:47:23 +08:00
Bin Meng
254e677925 x86: quark: Drop unprotect_spi_flash()
Unprotecting SPI flash is now handled in the SPI controller driver,
via a call to the PCH driver. Drop the ad-hoc version.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2016-02-05 12:47:20 +08:00
Simon Glass
117bfc7fbe dm: x86: quark: Add an interrupt driver
Add a driver for interrupts on quark and move the code currently in
cpu_irq_init() into its probe() method.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24 12:07:18 +08:00
Simon Glass
12d6929e1f dm: x86: Set up interrupt routing from interrupt_init()
At present interrupt routing is set up from arch_misc_init(). We can do it
a little later instead, in interrupt_init().

This removes the manual pirq_init() call. Where the platform does not have
an interrupt router defined in its device tree, no error is generated. Some
platforms do not have this.

Drop pirq_init() since it is no-longer used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-24 12:07:18 +08:00
Bin Meng
6071cd62d5 x86: quark: Fix boot breakage
With driver model timer conversion, quark based board does not boot
any more as mdelay() is called during quark_pcie_early_init() which
is before driver model gets initialized. Fix this breakage.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-19 08:32:23 -05:00
Simon Glass
4abe8e40a7 dm: Convert PCI MMC over to use DM PCI API
At present pci_mmc_init() does not correctly use the PCI function since the
list it passes is not terminated. The array size passed to pci_mmc_init() is
actually not used correctly. Fix this and adjust the pci_mmc_init() to scan
all available MMC devices.

Adjust this code to use the new driver model PCI API.

This should move over to the new MMC uclass at some point.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-12 10:19:09 -07:00
Bin Meng
1d4c83c248 x86: tsc: Remove legacy timer codes
Now that we have converted all x86 boards to use driver model timer,
remove these legacy timer codes in the tsc driver.

Note this also removes the TSC_CALIBRATION_BYPASS Kconfig option,
as it is not needed with driver model.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01 06:26:35 -07:00
Bin Meng
80af39842e x86: Convert to use driver model timer
Convert all x86 boards to use driver model tsc timer.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01 06:26:35 -07:00
Bin Meng
2fc2b83a7d x86: quark: Implement mrc cache
Using existing mrccache library to implement mrc cache support
for Intel Quark.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-10-21 07:46:27 -06:00
Bin Meng
c6d4705f41 x86: quark: Configure MTRR to enable cache
Quark SoC does not support MSR MTRRs. Fixed and variable range MTRRs
are accessed indirectly via the message port and not the traditional
MSR mechanism. Only UC, WT and WB cache types are supported.

We configure all the fixed range MTRRs with common values (VGA RAM
as UC, others as WB) and 3 variable range MTRRs for ROM/eSRAM/RAM as
WB, which significantly improves the boot time performance.

With this commit, it takes only 2 seconds for U-Boot to boot to shell
on Intel Galileo board. Previously it took about 6 seconds.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:53 -06:00
Bin Meng
554778c240 x86: quark: Initialize thermal sensor properly
Thermal sensor on Quark SoC needs to be properly initialized per
Quark firmware writer guide, otherwise when booting Linux kernel,
it triggers system shutdown because of wrong temperature in the
thermal sensor is detected by the kernel driver (see below):

[    5.119819] thermal_sys: Critical temperature reached(206 C),shutting down
[    5.128997] Failed to start orderly shutdown: forcing the issue
[    5.135495] Emergency Sync complete

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:53 -06:00
Bin Meng
693b5f6c71 x86: quark: Lock HMBOUND register before jumping to kernel
When Linux kernel boots, it hangs at:

[    0.829408] Intel Quark side-band driver registered

This happens when Quark kernel Isolated Memory Region (IMR) driver
tries to lock an IMR register to protect kernel's text and rodata
sections. However in order to have IMR function correctly, HMBOUND
register must be locked otherwise the system just hangs.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:53 -06:00
Bin Meng
8e3683029e x86: quark: Convert to use clrbits, setbits, clrsetbits macros
Change existing codes to use clrbits, setbits, clrsetbits macros.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:52 -06:00
Bin Meng
2afb62305e x86: quark: Add PCIe/USB static register programming after memory init
This adds static register programming for PCIe and USB after memory
init as required by Quark firmware writer guide. Although not doing
this did not cause any malfunction, just do it for safety.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:52 -06:00
Bin Meng
5841c5b0a7 x86: Convert to use driver model eth on quark/galileo
Convert to use DM version of Designware ethernet driver on Intel
quark/galileo.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-16 19:53:52 -06:00
Bin Meng
b06862b9d8 x86: quark: Add USB PHY initialization support
USB PHY needs to be properly initialized per Quark firmware writer
guide, otherwise the EHCI controller on Quark SoC won't work.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-09 07:48:03 -06:00
Bin Meng
31b5aebd5e x86: Convert to use driver model pci on quark/galileo
Move to driver model pci for Intel quark/galileo.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-09 07:48:03 -06:00
Bin Meng
316fd3920f x86: Enable PCIe controller on quark/galileo
Quark SoC holds the PCIe controller in reset following a power on.
U-Boot needs to release the PCIe controller from reset. The PCIe
controller (D23:F0/F1) will not be visible in PCI configuration
space and any access to its PCI configuration registers will cause
system hang while it is held in reset.

Enable PCIe controller per Quark firmware writer guide.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-09 07:48:03 -06:00
Bin Meng
aa09505ba1 x86: quark: Avoid chicken and egg problem
If we convert to use driver model pci on quark, we will encounter
some chicken and egg problems like below:

- To enable PCIe root ports, we need program some registers on the
  message bus via pci bus. With driver model, the first time to
  access pci bus, the pci enumeration process will be triggered.
  But without first enabling PCIe root ports, pci enumeration
  just hangs when scanning PCIe root ports.
- Similar situation happens when trying to access GPIO from the
  PCIe enabling codes, as GPIO requires its block base address
  to be assigned via a pci configuration register in the bridge.

To avoid such dilemma, replace all pci calls in the quark codes
to use the local version which does not go through driver model.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-09 07:48:03 -06:00
Bin Meng
5750e5e29a x86: quark: Optimize MRC execution time
Intel Quark SoC has a low end x86 processor with only 400MHz
frequency. Currently it takes about 15 seconds for U-Boot to
boot to shell and the most time consuming part is with MRC,
which is about 12 seconds. MRC programs lots of registers on
the SoC internal message bus indirectly accessed via pci bus.

To speed up the boot, create an optimized version of pci config
read/write dword routines which directly operate on PCI I/O ports.
These two routines are inlined to provide better performance too.
Now it only takes about 3 seconds to finish MRC, which is really
fast (4 times faster than before).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-09-09 07:48:03 -06:00
Simon Glass
7e4be120e8 x86: Allow pirq_init() to return an error
This function can fail. In this case we should return the error rather than
swallowing it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-08-14 03:24:21 -06:00
Bin Meng
05b98ec346 x86: quark: Implement PIRQ routing
Intel Quark SoC has the same interrupt routing mechanism as the
Queensbay platform, only the difference is that PCI devices'
INTA/B/C/D are harcoded and cannot be changed freely.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-06-04 02:39:39 -06:00
Simon Glass
ebebf05976 x86: quark: Use reset_cpu()
Now that reset_cpu() functions correctly, use it instead of directly
accessing the port.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-29 21:02:32 -06:00
Bin Meng
f82a7840f1 x86: quark: Turn on legacy segments decode
By default the legacy segments (A0000h-B0000h, E0000h-F0000h)
do not decode to system RAM. Turn on the decode so that we can
write configuration tables in the F segment.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-04-29 18:51:50 -06:00
Simon Glass
31f57c2873 x86: Add a x86_ prefix to the x86-specific PCI functions
These functions currently use a generic name, but they are for x86 only.
This may introduce confusion and prevents U-Boot from using these names
more widely.

In fact it should be possible to remove these at some point and use
generic functions, but for now, rename them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2015-04-16 19:27:41 -06:00
Bin Meng
e4ad6031a7 x86: quark: Enable on-chip ethernet controllers
Intel Quark SoC integrates two 10/100 ethernet controllers which can
be connected to an external RMII PHY. The MAC IP is from Designware.
Enable this support with the existing U-Boot Designware MAC driver
so that the ethernet port on Intel Galileo board can be used.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-03-24 21:22:37 -06:00
Tom Rini
1c854dc5d4 arch/x86/cpu/quark/mrc.c: Switch to U_BOOT_DATE / U_BOOT_TIME
Using __DATE__ and __TIME__ results in an error due to -Werror=date-time
with gcc-4.9 (__DATE__ / __TIME__ might prevent reproducible builds) so
switch these over to U_BOOT_DATE / U_BOOT_TIME

Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-03-24 21:22:37 -06:00
Bin Meng
312cc39e27 x86: quark: MRC codes clean up
This patch cleans up the quark MRC codes coding style by:
- Remove BIT0/1../31 defines from mrc_util.h
- Create names for the documented BITs and use them
- For undocumented single BITs, use (1 << n) directly
- For undocumented ORed BITs, use the hex number directly
- Remove redundancy parenthesis all over the codes
- Replace to use lower case hex numbers

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2015-03-24 21:22:37 -06:00
Bin Meng
6df7ffea13 x86: Add SD/MMC support to quark/galileo
Intel Galileo board has a microSD slot which is routed from Quark SoC
SDIO controller. Enable SD/MMC support so that we can use an SD card.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:45 -07:00
Bin Meng
728b393f3b x86: Add SPI support to quark/galileo
The Quark SoC contains a legacy SPI controller in the legacy bridge
which is ICH7 compatible. Like Tunnel Creek and BayTrail, the BIOS
control register offset in the ICH SPI driver is wrong for the Quark
SoC too, unprotect_spi_flash() is added to enable the flash write.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:45 -07:00
Bin Meng
b162257d4f x86: quark: Initialize non-standard BARs
Quark SoC has some non-standard BARs (excluding PCI standard BARs)
which need be initialized with suggested values. This includes GPIO,
WDT, RCBA, PCIe ECAM and some ACPI register block base addresses.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:44 -07:00
Bin Meng
20c34115d6 x86: quark: Call MRC in dram_init()
Now that we have added Quark MRC codes, call MRC in dram_init() so
that DRAM can be initialized on a Quark based board.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:44 -07:00
Bin Meng
236b711e89 x86: quark: Enable the Memory Reference Code build
Turn on the Memory Reference code build in the quark Makefile.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:43 -07:00
Bin Meng
b829f12afa x86: quark: Add System Memory Controller support
The codes are actually doing the memory initialization stuff.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:43 -07:00
Bin Meng
38ad43e436 x86: quark: Add utility codes needed for MRC
Add various utility codes needed for Quark MRC.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:43 -07:00
Bin Meng
0a391b1c79 x86: quark: Add Memory Reference Code (MRC) main routines
Add the main routines for Quark Memory Reference Code (MRC).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:42 -07:00
Bin Meng
ea94532461 x86: quark: Bypass TSC calibration
For some unknown reason, the TSC calibration via PIT does not work on
Quark. Enable bypassing TSC calibration and override TSC_FREQ_IN_MHZ
to 400 per Quark datasheet in the Kconfig.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:42 -07:00
Bin Meng
828d9af5ec x86: Add basic Intel Quark processor support
Add minimum codes to support Intel Quark SoC. DRAM initialization
is not ready yet so a hardcoded gd->ram_size is assigned.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:41 -07:00
Bin Meng
0fae4d24df x86: quark: Add Cache-As-RAM initialization
Quark SoC contains an embedded 512KiB SRAM (eSRAM) that is
initialized by hardware. eSRAM is the ideal place to be used
for Cache-As-RAM (CAR) before system memory is available.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:41 -07:00
Bin Meng
faa8323299 x86: quark: Add routines to access message bus registers
In the Quark SoC, some chipset commands are accomplished by utilizing
the internal message network within the host bridge (D0:F0). Accesses
to this network are accomplished by populating the message control
register (MCR), Message Control Register eXtension (MCRX) and the
message data register (MDR).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2015-02-06 12:07:40 -07:00