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https://github.com/brain-hackers/u-boot-brain
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a6c7b46181
Nyan-big is a Tegra124 clamshell board that is very similar to venice2, but it has a different panel, the sdcard cd and wp sense are flipped, and it has a different revision of the AS3722 PMIC. This is the Acer Chromebook 13 CB5-311-T7NN (13.3-inch HD, NVIDIA Tegra K1, 2GB). The display is not currently supported, so it should boot on other nyan-based Chromebooks also, but only the device tree for nyan-big is provided here. The device tree file is from Linux but with features removed which are unlikely to be supported in U-Boot soon (regulators, pinmux). Also the addresses are updated to 32-bit. Signed-off-by: Allen Martin <amartin@nvidia.com> Signed-off-by: Simon Glass <sjg@chromium.org> (rebase, change to 'nyan-big', fix pinmux that resets nyan-big)
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/*
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* (C) Copyright 2013
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* NVIDIA Corporation <www.nvidia.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/* AS3722-PMIC-specific early init regs */
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#define AS3722_I2C_ADDR 0x80
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#define AS3722_SD0VOLTAGE_REG 0x00 /* CPU */
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#define AS3722_SD1VOLTAGE_REG 0x01 /* CORE, already set by OTP */
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#define AS3722_SD6VOLTAGE_REG 0x06 /* GPU */
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#define AS3722_SDCONTROL_REG 0x4D
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#define AS3722_LDO2VOLTAGE_REG 0x12 /* VPP_FUSE */
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#define AS3722_LDO6VOLTAGE_REG 0x16 /* VDD_SDMMC */
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#define AS3722_LDCONTROL_REG 0x4E
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#if defined(CONFIG_TARGET_JETSON_TK1) || defined(CONFIG_TARGET_NYAN_BIG)
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#define AS3722_SD0VOLTAGE_DATA (0x3C00 | AS3722_SD0VOLTAGE_REG)
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#else
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#define AS3722_SD0VOLTAGE_DATA (0x2800 | AS3722_SD0VOLTAGE_REG)
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#endif
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#define AS3722_SD0CONTROL_DATA (0x0100 | AS3722_SDCONTROL_REG)
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#define AS3722_SD1VOLTAGE_DATA (0x3200 | AS3722_SD1VOLTAGE_REG)
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#define AS3722_SD1CONTROL_DATA (0x0200 | AS3722_SDCONTROL_REG)
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#define AS3722_SD6CONTROL_DATA (0x4000 | AS3722_SDCONTROL_REG)
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#define AS3722_SD6VOLTAGE_DATA (0x2800 | AS3722_SD6VOLTAGE_REG)
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#define AS3722_LDO2CONTROL_DATA (0x0400 | AS3722_LDCONTROL_REG)
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#define AS3722_LDO2VOLTAGE_DATA (0x1000 | AS3722_LDO2VOLTAGE_REG)
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#define AS3722_LDO6CONTROL_DATA (0x4000 | AS3722_LDCONTROL_REG)
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#define AS3722_LDO6VOLTAGE_DATA (0x3F00 | AS3722_LDO6VOLTAGE_REG)
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#define I2C_SEND_2_BYTES 0x0A02
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void pmic_enable_cpu_vdd(void);
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