diff options
| author | Svyatoslav Ryhel <clamor95@gmail.com> | 2023-06-30 10:29:04 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2023-06-30 15:20:37 +0200 |
| commit | 855ffdfa650aa54edf2bfdd99da50cd6255453b8 (patch) | |
| tree | da2fc54fa644f436706996c489de0d1095d43673 /board/asus/grouper/grouper-spl-ti.c | |
| parent | 15be9a7b3b08fa11d046162aaeb899e5d726cb90 (diff) | |
board: asus: grouper: add Google Nexus 7 (2012) support
Nexus 7 is a mini tablet computer co-developed by Google and Asus
that runs the Android operating system. The Nexus 7 features a 7"
display, an Nvidia Tegra 3 quad-core chip, 1 GB of RAM and 8/16 GB
of internal storage.
This patch brings support for all 3 known ASUS/Google devices:
- Nexus 7 (2012) E1565
- Nexus 7 (2012) PM269
- Nexus 7 (2012) 3G - tilapia
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # ASUS Grouper E1565
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # ASUS Grouper E1565
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'board/asus/grouper/grouper-spl-ti.c')
| -rw-r--r-- | board/asus/grouper/grouper-spl-ti.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/board/asus/grouper/grouper-spl-ti.c b/board/asus/grouper/grouper-spl-ti.c new file mode 100644 index 0000000000..e5b78f0121 --- /dev/null +++ b/board/asus/grouper/grouper-spl-ti.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * T30 Grouper TI SPL stage configuration + * + * (C) Copyright 2010-2013 + * NVIDIA Corporation <www.nvidia.com> + * + * (C) Copyright 2022 + * Svyatoslav Ryhel <clamor95@gmail.com> + */ + +#include <common.h> +#include <asm/arch-tegra/tegra_i2c.h> +#include <linux/delay.h> + +#define TPS65911_I2C_ADDR (0x2D << 1) +#define TPS65911_VDDCTRL_OP_REG 0x28 +#define TPS65911_VDDCTRL_SR_REG 0x27 +#define TPS65911_VDDCTRL_OP_DATA (0x2400 | TPS65911_VDDCTRL_OP_REG) +#define TPS65911_VDDCTRL_SR_DATA (0x0100 | TPS65911_VDDCTRL_SR_REG) + +#define TPS62361B_I2C_ADDR (0x60 << 1) +#define TPS62361B_SET3_REG 0x03 +#define TPS62361B_SET3_DATA (0x4600 | TPS62361B_SET3_REG) + +void pmic_enable_cpu_vdd(void) +{ + /* Set VDD_CORE to 1.200V. */ + tegra_i2c_ll_write(TPS62361B_I2C_ADDR, TPS62361B_SET3_DATA); + + udelay(1000); + + /* + * Bring up CPU VDD via the TPS65911x PMIC on the DVC I2C bus. + * First set VDD to 1.0125V, then enable the VDD regulator. + */ + tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_OP_DATA); + udelay(1000); + tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_SR_DATA); + udelay(10 * 1000); +} |