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| author | Stephen Carlson <stcarlso@linux.microsoft.com> | 2021-06-23 02:35:20 +0300 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2021-07-20 11:48:04 +0300 |
| commit | 15347d2dea32d88e9d1553e26b7eb3553550f424 (patch) | |
| tree | b48dd2886cd363b78e13d67553990a9db584e56d /board/freescale/common/i2c_common.c | |
| parent | dd3dfa50d88cffeb244485594a7bf18c58ae6d63 (diff) | |
| download | u-boot-15347d2dea32d88e9d1553e26b7eb3553550f424.tar.xz | |
board: freescale: Refactor NXP common mux code
Refactors similar mux code from multiple NXP boards into a common location,
and allows it to be disabled in config.
New config: CONFIG_FSL_USE_PCA9547_MUX to enable PCA9547 mux functionality.
Signed-off-by: Stephen Carlson <stcarlso@linux.microsoft.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'board/freescale/common/i2c_common.c')
| -rw-r--r-- | board/freescale/common/i2c_common.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/board/freescale/common/i2c_common.c b/board/freescale/common/i2c_common.c new file mode 100644 index 0000000000..0f09ed7d34 --- /dev/null +++ b/board/freescale/common/i2c_common.c @@ -0,0 +1,34 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * Copyright 2020-21 NXP + * Copyright 2021 Microsoft Corporation + */ + +#include <common.h> +#include <i2c.h> +#include "i2c_common.h" + +#ifdef CONFIG_DM_I2C + +/* If DM is in use, retrieve the chip for the specified bus number */ +int fsl_i2c_get_device(int address, int bus, DEVICE_HANDLE_T *dev) +{ + int ret = i2c_get_chip_for_busnum(bus, address, 1, dev); + + if (ret) + printf("I2C: Bus %d has no device with address 0x%02X\n", + bus, address); + return ret; +} + +#else + +/* Handle is passed directly */ +int fsl_i2c_get_device(int address, int bus, DEVICE_HANDLE_T *dev) +{ + *dev = address; + return 0; +} + +#endif |