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Drew Fustini
adf7045147 ARM: dts: am335x-pocketbeagle: switch to pinconf-single
Switch the compatible for the am33xx_pinmux pin controller node from
pinctrl-single to pinconf-single. The only change between these two
compatibles is that PCS_HAS_PINCONF will be true. This then allows
pinconf properties to be utilized.

The purpose of this change is to allow the PocketBeagle to use:

  pinctrl-single,bias-pullup
  pinctrl-single,bias-pulldown

This dts already defines these properites for gpio pins in the default
pinctrl state but it has no effect unless PCS_HAS_PINCONF is set.

The bias properties can then be modified on the corresponding gpio lines
through the gpiod uapi. The mapping between the pins and gpio lines is
defined by gpio-ranges under the gpio controller nodes in am33xx-l4.dtsi

Signed-off-by: Drew Fustini <drew@pdp7.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-10-06 10:28:44 +03:00
Drew Fustini
908e654366 ARM: dts: am335x-pocketbeagle: unique gpio-line-names
Based on linux-gpio discussion [1], it is best practice to make the
gpio-line-names unique. Generic names like "[ethernet]" are replaced
with the name of the unique signal on the AM3358 SoC ball corresponding
to the gpio line. "[NC]" is also renamed to the standard "NC" name to
represent "not connected".

[1] https://lore.kernel.org/linux-gpio/20201216195357.GA2583366@x1/

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2021-03-24 18:31:08 +02:00
Linus Torvalds
2f3fbfdaf7 ARM: SoC DT changes for 5.9
As usual, there are many patches addressing minor issues in existing
 DTS files, such as DTC warnings, or adding support for additional
 peripherals.
 
 There are three added SoCs in existing product families:
 
  - Amazon:
     Alpine v3 is a 16-core Cortex-A72 SoC from Amazon's Annapurna Labs,
     otherwise known as AL73400 or first-generation Graviton, and following
     the already supported Cortex-A1`5 and Cortex-A57 based Alpine chips.
     This one is added together with the official Evaluation platform.
 
  - Qualcomm:
     The Snapdragon SDM630 platform is a family of mid-range mobile phone
     chips from 2017 based on Cortex-A53 or Kryo 260 CPUs.
     A total of five end-user products are added based on these, all
     Android phones from Sony: Xperia 10, 10 Plus, XA2, XA2 Plus and
     XA2 Ultra.
 
  - Renesas:
     RZ/G2H (r8a774e1) is currently the top model in the Renesas RZ/G
     family, and apparently closely related to the RZ/G2N and RZ/G2M
     models we already support but has a faster GPU and additional
     on-chip peripherals.
     It is added along with the HopeRun HiHope RZ/G2H development board
 
 A small number of new boards for already supported SoCs also debut:
 
  - Allwinner sunxi:
     Only one new machine, revision v1.2 of the Pine64 PinePhone
     (non-Android) smartphone, containing minor changes compared to
     earlier versions.
 
  - Amlogic Meson:
     WeTek Core2 is an Amlogic S912 (GXM) based Set-top-box
 
  - Aspeed:
     EthanolX is AMD's EPYC data center rerence platform, using an
     ASpeed AST2600 baseboard management controller.
 
  - Mediatek:
     Lenovo IdeaPad Duet 10.1" (kukui/krane) is a new Chromebook
     based on the MT8183 (Helio P60t) SoC.
 
  - Nvidia Tegra:
     ASUS Google Nexus 7 and Acer Iconia Tab A500 are two Android
     tablets from around 2012 using Tegra 3 and Tegra 2, respectively.
     Thanks to PostmarketOS, these can now run mainline kernels
     and become useful again.
 
     The Jetson Xavier NX Developer Kit uses a SoM and carrier board
     for the Tegra194, their latest 64-bit chip based on Carmel CPU
     cores and Volta graphics.
 
  - NXP i.MX:
     Five new boards based on the 32-bit i.MX6 series are added:
     The MYiR MYS-6ULX single-board computer, and four different
     models of industrial computers from Protonic.
 
  - Qualcomm:
     MikroTik RouterBoard 3011 is a rackmounted router based on the
     32-bit IPQ8064 networking SoC
     Three older phones get added, the Snapdragon 808 (msm8992) based
     Xiaomi Libra (Mi 4C) and Microsoft Lumia 950, originally running
     Windows Phone, and the Snapdragon 810 (msm8994) based Sony
     Xperia Z5.
 
  - Renesas:
     In addition to the HiHope RZ/G2H board mentioned above, we gain
     support for board versions 3.0 and 4.0 of the earlier RZ/G2M and
     RZ/G2N reference boards.
     Beacon EmbeddedWorks adds another SoM+Carrier development board
     for RZ/G2M.
 
  - Rockchips:
     Radxa Rock Pi N8 development board and the VMARC RK3288 SoM it
     is based on, using the high-end 32-bit rk3288 SoC.
 
 Notable updates to existing platforms are usually for added on-chip
 peripherals, including:
 
  - ASpeed AST2xxx (various)
 
  - Allwinner (cpufreq, thermal, Pinephone touchscreen)
 
  - Amlogic Meson (audio, gpu dvdfs, board updates)
 
  - Arm Versatile
 
  - Broadcom (board updates for switch ports, Raspberry pi clock updates)
 
  - Hisilicon (various)
 
  - Intel/Altera SoCFPGA (various)
 
  - Marvell Armada 7xxx/8xxx (smmu)
 
  - Marvell MMP (GPU on mmp2/mmp3)
 
  - Mediatek mt8183 (USB, pericfg)
 
  - NXP Layerscape (VPU, thermal, DSPI)
 
  - NXP i.MX (VPU, bindings, board updates)
 
  - Nvidia Tegra194 (GPU)
 
  - Qualcomm (GPU, Interconnect, ...)
 
  - Renesas R-Car (SPI, IPMMU, board updates)
 
  - STMicroelectronics STM32 (various)
 
  - Samsung Exynos (various)
 
  - Socionext Uniphier (updates to serial, and pcie)
 
  - TI K3 (serdes, usb3, audio, sd, chipid)
 
  - TI OMAP (IPU/DSP remoteproc changes, dropping platform data)
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'arm-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC DT updates from Arnd Bergmann:
 "As usual, there are many patches addressing minor issues in existing
  DTS files, such as DTC warnings, or adding support for additional
  peripherals.

  There are three added SoCs in existing product families:

   - Amazon:

     Alpine v3 is a 16-core Cortex-A72 SoC from Amazon's Annapurna Labs,
     otherwise known as AL73400 or first-generation Graviton, and
     following the already supported Cortex-A1`5 and Cortex-A57 based
     Alpine chips. This one is added together with the official
     Evaluation platform.

   - Qualcomm:

     The Snapdragon SDM630 platform is a family of mid-range mobile
     phone chips from 2017 based on Cortex-A53 or Kryo 260 CPUs. A total
     of five end-user products are added based on these, all Android
     phones from Sony: Xperia 10, 10 Plus, XA2, XA2 Plus and XA2 Ultra.

   - Renesas:

     RZ/G2H (r8a774e1) is currently the top model in the Renesas RZ/G
     family, and apparently closely related to the RZ/G2N and RZ/G2M
     models we already support but has a faster GPU and additional
     on-chip peripherals. It is added along with the HopeRun HiHope
     RZ/G2H development board

  A small number of new boards for already supported SoCs also debut:

   - Allwinner sunxi:

     Only one new machine, revision v1.2 of the Pine64 PinePhone
     (non-Android) smartphone, containing minor changes compared to
     earlier versions.

   - Amlogic Meson:

     WeTek Core2 is an Amlogic S912 (GXM) based Set-top-box

   - Aspeed:

     EthanolX is AMD's EPYC data center rerence platform, using an
     ASpeed AST2600 baseboard management controller.

   - Mediatek:

     Lenovo IdeaPad Duet 10.1" (kukui/krane) is a new Chromebook based
     on the MT8183 (Helio P60t) SoC.

   - Nvidia Tegra:

     ASUS Google Nexus 7 and Acer Iconia Tab A500 are two Android
     tablets from around 2012 using Tegra 3 and Tegra 2, respectively.
     Thanks to PostmarketOS, these can now run mainline kernels and
     become useful again.

     The Jetson Xavier NX Developer Kit uses a SoM and carrier board for
     the Tegra194, their latest 64-bit chip based on Carmel CPU cores
     and Volta graphics.

   - NXP i.MX:

     Five new boards based on the 32-bit i.MX6 series are added: The
     MYiR MYS-6ULX single-board computer, and four different models of
     industrial computers from Protonic.

   - Qualcomm:

     MikroTik RouterBoard 3011 is a rackmounted router based on the
     32-bit IPQ8064 networking SoC

     Three older phones get added, the Snapdragon 808 (msm8992) based
     Xiaomi Libra (Mi 4C) and Microsoft Lumia 950, originally running
     Windows Phone, and the Snapdragon 810 (msm8994) based Sony Xperia
     Z5.

   - Renesas:

     In addition to the HiHope RZ/G2H board mentioned above, we gain
     support for board versions 3.0 and 4.0 of the earlier RZ/G2M and
     RZ/G2N reference boards. Beacon EmbeddedWorks adds another
     SoM+Carrier development board for RZ/G2M.

   - Rockchips:

     Radxa Rock Pi N8 development board and the VMARC RK3288 SoM it is
     based on, using the high-end 32-bit rk3288 SoC.

  Notable updates to existing platforms are usually for added on-chip
  peripherals, including:

   - ASpeed AST2xxx (various)

   - Allwinner (cpufreq, thermal, Pinephone touchscreen)

   - Amlogic Meson (audio, gpu dvdfs, board updates)

   - Arm Versatile

   - Broadcom (board updates for switch ports, Raspberry pi clock updates)

   - Hisilicon (various)

   - Intel/Altera SoCFPGA (various)

   - Marvell Armada 7xxx/8xxx (smmu)

   - Marvell MMP (GPU on mmp2/mmp3)

   - Mediatek mt8183 (USB, pericfg)

   - NXP Layerscape (VPU, thermal, DSPI)

   - NXP i.MX (VPU, bindings, board updates)

   - Nvidia Tegra194 (GPU)

   - Qualcomm (GPU, Interconnect, ...)

   - Renesas R-Car (SPI, IPMMU, board updates)

   - STMicroelectronics STM32 (various)

   - Samsung Exynos (various)

   - Socionext Uniphier (updates to serial, and pcie)

   - TI K3 (serdes, usb3, audio, sd, chipid)

   - TI OMAP (IPU/DSP remoteproc changes, dropping platform data)"

* tag 'arm-dt-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (605 commits)
  arm64: dts: meson: odroid-n2: add jack audio output support
  arm64: dts: meson: odroid-n2: enable audio loopback
  ARM: dts: berlin: Align L2 cache-controller nodename with dtschema
  arm64: dts: qcom: Add Microsoft Lumia 950 (Talkman) device tree
  arm64: dts: qcom: Add Xiaomi Libra (Mi 4C) device tree
  arm64: dts: qcom: msm8992: Add RPMCC node
  arm64: dts: qcom: msm8992: Add PSCI support.
  arm64: dts: qcom: msm8992: Add PMU node
  arm64: dts: qcom: msm8992: Add BLSP2_UART2 and I2C nodes
  arm64: dts: qcom: msm8992: Add SPMI PMIC arbiter device
  arm64: dts: qcom: msm8992: Add a SCM node
  arm64: dts: qcom: msm8992: Add a proper CPU map
  arm64: dts: qcom: bullhead: Move UART pinctrl to SoC
  arm64: dts: qcom: bullhead: Add qcom,msm-id
  arm64: dts: qcom: msm8992: Fix SDHCI1
  arm64: dts: qcom: msm8992: Modernize the DTS style
  arm64: dts: qcom: Add support for Sony Xperia Z5 (SoMC Sumire-RoW)
  arm64: dts: qcom: Move msm8994-smd-rpm contents to lg-bullhead.
  arm64: dts: qcom: msm8994: Add support for SMD RPM
  arm64: dts: qcom: msm8992: Add a label to rpm-requests
  ...
2020-08-03 19:19:34 -07:00
Alexander A. Klimov
75f66813e0 Replace HTTP links with HTTPS ones: OMAP DEVICE TREE SUPPORT
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-07-13 11:25:29 -07:00
Drew Fustini
abe4e4675d ARM: dts: am335x-pocketbeagle: set default mux for gpio pins
These pins on the PocketBeagle P1 and P2 headers are connected to AM3358
balls with gpio lines, and these pins are not used for any other
peripherals by default. These GPIO lines are unclaimed and could be used
by userspace program through the gpiod ABI.

This patch adds a "default" state in the am33xx_pinmux node and sets the
mux for those pins to gpio (mode 7) and input enable.

The "pinctrl-single,bias-pullup" and "pinctrl-single,bias-pulldown"
pinconf properties are also set for each pin per the ball reset state in
section 4.2 of the datasheet [0].

This is the AM335x pin control register format in Table 9-60 [1]:

 bit     attribute      value
----------------------------------
31-7     reserved       0 on reset
   6     slew           { 0: fast, 1: slow }
   5     rx_active      { 0: rx disable, 1: rx enabled }
   4     pu_typesel     { 0: pulldown select, 1: pullup select }
   3     puden          { 0: pud enable, 1: disabled }
   2     mode           3 bits to selec mode 0 to 7
   1     mode
   0     mode

The values for the bias pinconf properties are derived as follows:

pinctrl-single,bias-pullup   = <[input] [enabled] [disable] [mask]>;
pinctrl-single,bias-pullup   = <  0x10      0x10      0x10   0x18 >;

          2^5    2^4    2^3    2^2    2^1    2^0  |
         0x20   0x10   0x08   0x04   0x02   0x01  |
--------------------------------------------------|
input       x      1      0     x      x      x   | 0x10
enabled     x      1      0     x      x      x   | 0x10
disabled    x      0      0     x      x      x   | 0x00
mask        x      1      1     x      x      x   | 0x18

pinctrl-single,bias-pulldown = <[input] [enabled] [disable] [mask]>;
pinctrl-single,bias-pulldown = <   0x0       0x0      0x10   0x18 >;

          2^5    2^4    2^3    2^2    2^1    2^0  |
         0x20   0x10   0x08   0x04   0x02   0x01  |
--------------------------------------------------|
input       x      0      0     x      x      x   | 0x00
enabled     x      0      0     x      x      x   | 0x00
disabled    x      1      0     x      x      x   | 0x10
mask        x      1      1     x      x      x   | 0x18

[0] http://www.ti.com/lit/ds/symlink/am3358.pdf
[1] https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf

Signed-off-by: Drew Fustini <drew@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-07-13 11:08:04 -07:00
Drew Fustini
e14d2c7663 ARM: dts: am335x-pocketbeagle: add gpio-line-names
The BeagleBoard.org PocketBeagle has P1 and P2 headers [0] which expose
many of the TI AM3358 SoC balls to stacking expansion boards called
"capes", or to other external connections like jumper wires connected
to a breadboard.

Note: the AM3358 die is actually embedded inside of the OSD335x-SM
System-in-Package (SiP) [1] but that is irrelevant to the gpio driver.

Many of the P1 and P2 header pins can muxed to a GPIO line.  The
gpio-line-names describe which P1 or P2 pin that line goes to and the
default mux for that P1 or P2 pin if it is not GPIO.

Some GPIO lines are named "[NC]" as the corresponding balls are not
routed to anything on the PCB.

The goal for these names is to make it easier for a user viewing the
output of gpioinfo to determine which P1 or P2 pin is connected to a
GPIO line.  The output of gpioinfo on a PocketBeagle would be:

gpiochip0 - 32 lines:
	line   0:       "[NC]"       unused   input  active-high
	line   1:       "[NC]"       unused   input  active-high
	line   2: "P1.08 [SPI0_CLK]" unused input active-high
	line   3: "P1.10 [SPI0_MISO]" unused input active-high
	line   4: "P1.12 [SPI0_MOSI]" unused input active-high
	line   5: "P1.06 [SPI0_CS]" unused input active-high
	line   6:  "[MMC0_CD]"         "cd"   input   active-low [used]
	line   7: "P2.29 [SPI1_CLK]" unused input active-high
	line   8:  "[SYSBOOT]"       unused   input  active-high
	line   9:  "[SYSBOOT]"       unused   input  active-high
	line  10:  "[SYSBOOT]"       unused   input  active-high
	line  11:  "[SYSBOOT]"       unused   input  active-high
	line  12: "P1.26 [I2C2_SDA]" unused input active-high
	line  13: "P1.28 [I2C2_SCL]" unused input active-high
	line  14: "P2.11 [I2C1_SDA]" unused input active-high
	line  15: "P2.09 [I2C1_SCL]" unused input active-high
	line  16:       "[NC]"       unused   input  active-high
	line  17:       "[NC]"       unused   input  active-high
	line  18:       "[NC]"       unused   input  active-high
	line  19: "P2.31 [SPI1_CS]" unused input active-high
	line  20: "P1.20 [PRU0.16]" unused input active-high
	line  21:       "[NC]"       unused   input  active-high
	line  22:       "[NC]"       unused   input  active-high
	line  23:      "P2.03"       unused   input  active-high
	line  24:       "[NC]"       unused   input  active-high
	line  25:       "[NC]"       unused   input  active-high
	line  26:      "P1.34"       unused   input  active-high
	line  27:      "P2.19"       unused   input  active-high
	line  28:       "[NC]"       unused   input  active-high
	line  29:       "[NC]"       unused   input  active-high
	line  30: "P2.05 [UART4_RX]" unused input active-high
	line  31: "P2.07 [UART4_TX]" unused input active-high
gpiochip1 - 32 lines:
	line   0:       "[NC]"       unused   input  active-high
	line   1:       "[NC]"       unused   input  active-high
	line   2:       "[NC]"       unused   input  active-high
	line   3:       "[NC]"       unused   input  active-high
	line   4:       "[NC]"       unused   input  active-high
	line   5:       "[NC]"       unused   input  active-high
	line   6:       "[NC]"       unused   input  active-high
	line   7:       "[NC]"       unused   input  active-high
	line   8:       "[NC]"       unused   input  active-high
	line   9: "P2.25 [SPI1_MOSI]" unused input active-high
	line  10: "P1.32 [UART0_RX]" unused input active-high
	line  11: "P1.30 [UART0_TX]" unused input active-high
	line  12:      "P2.24"       unused   input  active-high
	line  13:      "P2.33"       unused   input  active-high
	line  14:      "P2.22"       unused   input  active-high
	line  15:      "P2.18"       unused   input  active-high
	line  16:       "[NC]"       unused   input  active-high
	line  17:       "[NC]"       unused   input  active-high
	line  18: "P2.01 [PWM1A]" unused input active-high
	line  19:       "[NC]"       unused   input  active-high
	line  20:      "P2.10"       unused   input  active-high
	line  21: "[USR LED 0]" "beaglebone:green:usr0" output active-high [used]
	line  22: "[USR LED 1]" "beaglebone:green:usr1" output active-high [used]
	line  23: "[USR LED 2]" "beaglebone:green:usr2" output active-high [used]
	line  24: "[USR LED 3]" "beaglebone:green:usr3" output active-high [used]
	line  25:      "P2.06"       unused   input  active-high
	line  26:      "P2.04"       unused   input  active-high
	line  27:      "P2.02"       unused   input  active-high
	line  28:      "P2.08"       unused   input  active-high
	line  29:       "[NC]"       unused   input  active-high
	line  30:       "[NC]"       unused   input  active-high
	line  31:       "[NC]"       unused   input  active-high
gpiochip2 - 32 lines:
	line   0:      "P2.20"       unused   input  active-high
	line   1:      "P2.17"       unused   input  active-high
	line   2:       "[NC]"       unused   input  active-high
	line   3:       "[NC]"       unused   input  active-high
	line   4:       "[NC]"       unused   input  active-high
	line   5: "[EEPROM_WP]" unused input active-high
	line   6:  "[SYSBOOT]"       unused   input  active-high
	line   7:  "[SYSBOOT]"       unused   input  active-high
	line   8:  "[SYSBOOT]"       unused   input  active-high
	line   9:  "[SYSBOOT]"       unused   input  active-high
	line  10:  "[SYSBOOT]"       unused   input  active-high
	line  11:  "[SYSBOOT]"       unused   input  active-high
	line  12:  "[SYSBOOT]"       unused   input  active-high
	line  13:  "[SYSBOOT]"       unused   input  active-high
	line  14:  "[SYSBOOT]"       unused   input  active-high
	line  15:  "[SYSBOOT]"       unused   input  active-high
	line  16:  "[SYSBOOT]"       unused   input  active-high
	line  17:  "[SYSBOOT]"       unused   input  active-high
	line  18:       "[NC]"       unused   input  active-high
	line  19:       "[NC]"       unused   input  active-high
	line  20:       "[NC]"       unused   input  active-high
	line  21:       "[NC]"       unused   input  active-high
	line  22: "P2.35 [AIN5]" unused input active-high
	line  23: "P1.02 [AIN6]" unused input active-high
	line  24: "P1.35 [PRU1.10]" unused input active-high
	line  25: "P1.04 [PRU1.11]" unused input active-high
	line  26: "[MMC0_DAT3]" unused input active-high
	line  27: "[MMC0_DAT2]" unused input active-high
	line  28: "[MMC0_DAT1]" unused input active-high
	line  29: "[MMC0_DAT0]" unused input active-high
	line  30: "[MMC0_CLK]"       unused   input  active-high
	line  31: "[MMC0_CMD]"       unused   input  active-high
gpiochip3 - 32 lines:
	line   0:       "[NC]"       unused   input  active-high
	line   1:       "[NC]"       unused   input  active-high
	line   2:       "[NC]"       unused   input  active-high
	line   3:       "[NC]"       unused   input  active-high
	line   4:       "[NC]"       unused   input  active-high
	line   5: "[I2C0_SDA]"       unused   input  active-high
	line   6: "[I2C0_SCL]"       unused   input  active-high
	line   7:     "[JTAG]"       unused   input  active-high
	line   8:     "[JTAG]"       unused   input  active-high
	line   9:       "[NC]"       unused   input  active-high
	line  10:       "[NC]"       unused   input  active-high
	line  11:       "[NC]"       unused   input  active-high
	line  12:       "[NC]"       unused   input  active-high
	line  13: "P1.03 [USB1]" unused input active-high
	line  14: "P1.36 [PWM0A]" unused input active-high
	line  15: "P1.33 [PRU0.1]" unused input active-high
	line  16: "P2.32 [PRU0.2]" unused input active-high
	line  17: "P2.30 [PRU0.3]" unused input active-high
	line  18: "P1.31 [PRU0.4]" unused input active-high
	line  19: "P2.34 [PRU0.5]" unused input active-high
	line  20: "P2.28 [PRU0.6]" unused input active-high
	line  21: "P1.29 [PRU0.7]" unused input active-high
	line  22:       "[NC]"       unused   input  active-high
	line  23:       "[NC]"       unused   input  active-high
	line  24:       "[NC]"       unused   input  active-high
	line  25:       "[NC]"       unused   input  active-high
	line  26:       "[NC]"       unused   input  active-high
	line  27:       "[NC]"       unused   input  active-high
	line  28:       "[NC]"       unused   input  active-high
	line  29:       "[NC]"       unused   input  active-high
	line  30:       "[NC]"       unused   input  active-high
	line  31:       "[NC]"       unused   input  active-high

[0] https://github.com/beagleboard/pocketbeagle/wiki/System-Reference-Manual#71_Expansion_Header_Connectors
[1] https://octavosystems.com/app_notes/osd335x-family-pin-assignments/

Reviewed-by: Jason Kridner <jason@beagleboard.org>
Reviewed-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-06-29 11:24:27 -07:00
Drew Fustini
d7af722344 ARM: dts: am335x-pocketbeagle: Fix mmc0 Write Protect
AM3358 pin mcasp0_aclkr (ZCZ ball B13) [0] is routed to P1.31 header [1]
Mode 4 of this pin is mmc0_sdwp (SD Write Protect).  A signal connected
to P1.31 may accidentally trigger mmc0 write protection.  To avoid this
situation, do not put mcasp0_aclkr in mode 4 (mmc0_sdwp) by default.

[0] http://www.ti.com/lit/ds/symlink/am3358.pdf
[1] https://github.com/beagleboard/pocketbeagle/wiki/System-Reference-Manual#531_Expansion_Headers

Fixes: 047905376a (ARM: dts: Add am335x-pocketbeagle)
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Signed-off-by: Drew Fustini <drew@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-06-16 09:08:50 -07:00
Tony Lindgren
12afc0cf81 ARM: dts: Drop pointless status changing for am3 musb
The default is enabled, and there should be no need to reconfigure
the status for SoC internal devices in the board specific files.

Only the USB PHY used needs to be configured in the board specific
files.

Cc: Bin Liu <b-liu@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-23 07:46:32 -07:00
Christina Quast
05165a63d6 ARM: dts: am335x: pocketbeagle: Replaced register offsets with defines
The defines are taken from dt-bindings/pinctrl/am33xx.h

Signed-off-by: Christina Quast <cquast@hanoverdisplays.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-04-08 10:01:53 -07:00
Robert Nelson
047905376a ARM: dts: Add am335x-pocketbeagle
PocketBeagle is an ultra-tiny-yet-complete open-source USB-key-fob computer.

This board family can be indentified by the A335PBGL in the at24 eeprom:
A2: [aa 55 33 ee 41 33 33 35  50 42 47 4c 30 30 41 32 |.U3.A335PBGL00A2|]

http://beagleboard.org/pocket
https://github.com/beagleboard/pocketbeagle

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
CC: Tony Lindgren <tony@atomide.com>
CC: Jason Kridner <jkridner@beagleboard.org>
CC: Drew Fustini <drew@beagleboard.org>
CC: Peter Robinson <pbrobinson@redhat.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-05-01 08:28:35 -07:00