diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/power/power_fsl.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/power/power_fsl.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/power/power_fsl.c b/qemu/roms/u-boot/drivers/power/power_fsl.c new file mode 100644 index 000000000..ac0b541d7 --- /dev/null +++ b/qemu/roms/u-boot/drivers/power/power_fsl.c @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2011 Samsung Electronics + * Lukasz Majewski <l.majewski@samsung.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <spi.h> +#include <power/pmic.h> +#include <fsl_pmic.h> +#include <errno.h> + +#if defined(CONFIG_PMIC_FSL_MC13892) +#define FSL_PMIC_I2C_LENGTH 3 +#elif defined(CONFIG_PMIC_FSL_MC34704) +#define FSL_PMIC_I2C_LENGTH 1 +#endif + +#if defined(CONFIG_POWER_SPI) +static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write) +{ + return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF); +} +#endif + +int pmic_init(unsigned char bus) +{ + static const char name[] = "FSL_PMIC"; + struct pmic *p = pmic_alloc(); + + if (!p) { + printf("%s: POWER allocation error!\n", __func__); + return -ENOMEM; + } + + p->name = name; + p->number_of_regs = PMIC_NUM_OF_REGS; + p->bus = bus; + +#if defined(CONFIG_POWER_SPI) + p->interface = PMIC_SPI; + p->hw.spi.cs = CONFIG_FSL_PMIC_CS; + p->hw.spi.clk = CONFIG_FSL_PMIC_CLK; + p->hw.spi.mode = CONFIG_FSL_PMIC_MODE; + p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN; + p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END; + p->hw.spi.prepare_tx = pmic_spi_prepare_tx; +#elif defined(CONFIG_POWER_I2C) + p->interface = PMIC_I2C; + p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR; + p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH; +#else +#error "You must select CONFIG_POWER_SPI or CONFIG_PMIC_I2C" +#endif + + return 0; +} |