Hi Bin,
On 02/24/2015 11:52 PM, Bin Meng wrote:
Hi Gabriel,
On Mon, Feb 16, 2015 at 5:55 AM, Gabriel Huau <cont...@huau-gabriel.fr> wrote:
Configure the pinctrl as it required to make some IO controllers
working (USB/UART/I2C/...).
The idea would be in the next version to modify the pch GPIO driver and
configure these pins through the device tree.
These modifications are ported from the coreboot project.
Signed-off-by: Gabriel Huau <cont...@huau-gabriel.fr>
---
arch/x86/cpu/baytrail/Makefile | 1 +
arch/x86/cpu/baytrail/gpio.c | 206 +++++++++++++++
arch/x86/include/asm/arch-baytrail/gpio.h | 364 ++++++++++++++++++++++++++
arch/x86/include/asm/arch-baytrail/iomap.h | 73 ++++++
arch/x86/include/asm/arch-baytrail/irq.h | 119 +++++++++
arch/x86/include/asm/arch-baytrail/irqroute.h | 67 +++++
arch/x86/include/asm/arch-baytrail/pci_devs.h | 144 ++++++++++
arch/x86/include/asm/arch-baytrail/pmc.h | 253 ++++++++++++++++++
board/intel/minnowmax/minnowmax.c | 212 +++++++++++++++
include/configs/minnowmax.h | 11 +
10 files changed, 1450 insertions(+)
create mode 100644 arch/x86/cpu/baytrail/gpio.c
create mode 100644 arch/x86/include/asm/arch-baytrail/iomap.h
create mode 100644 arch/x86/include/asm/arch-baytrail/irq.h
create mode 100644 arch/x86/include/asm/arch-baytrail/irqroute.h
create mode 100644 arch/x86/include/asm/arch-baytrail/pci_devs.h
create mode 100644 arch/x86/include/asm/arch-baytrail/pmc.h
[snip]
diff --git a/include/configs/minnowmax.h b/include/configs/minnowmax.h
index 823e051..738c6fa 100644
--- a/include/configs/minnowmax.h
+++ b/include/configs/minnowmax.h
@@ -69,4 +69,15 @@
/* Avoid a warning in the Realtek Ethernet driver */
#define CONFIG_SYS_CACHELINE_SIZE 16
+/*
+ * Baytrail has 3 GPIOs bank over PCI, there is no
+ * driver at the moment so let's disable the command
+ * and the default x86 driver to avoid any collision
+ * with the GPIO mapping code.
+ * @TODO: adding a baytrail-gpio driver and configure
+ * the muxing through the device tree
+ */
+#undef CONFIG_INTEL_ICH6_GPIO
+#undef CONFIG_CMD_GPIO
+
Why undef these two? The BayTrail SoC does support GPIO banks in the
legacy bridge.
I might misunderstood the GPIO subsystem but I thought there was 2 banks
available through the PCU iLB GPIO controller which contains the SCORE
and SSUS (102 / 44 pins).
The intel_ich6_gpio has a limitation of 32 GPIOs per bank and I thought
it was just a different controller from the Baytrail, but if I can use
it to control all the GPIOs + doing the IO mapping, I'll be glad to do it!
#endif /* __CONFIG_H */
--
Regards,
Bin
Regards,
Gabriel
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