diff options
| author | Biwen Li <biwen.li@nxp.com> | 2020-05-01 20:04:11 +0800 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2020-05-04 09:12:36 +0530 |
| commit | 9e9771a6105785189828706418945748d4db89a1 (patch) | |
| tree | 0befde222d9e2aa90e22d7c90ac2b7a89330f43a /board/freescale/t102xrdb | |
| parent | c55622540782daadfb64f90f142bd3648d9c65ef (diff) | |
dm: powerpc: T1023/T1024: add i2c DM support
This supports i2c DM for SoC T1023/T1024
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'board/freescale/t102xrdb')
| -rw-r--r-- | board/freescale/t102xrdb/t102xrdb.c | 71 |
1 files changed, 67 insertions, 4 deletions
diff --git a/board/freescale/t102xrdb/t102xrdb.c b/board/freescale/t102xrdb/t102xrdb.c index eee09a5701..a34490c8bd 100644 --- a/board/freescale/t102xrdb/t102xrdb.c +++ b/board/freescale/t102xrdb/t102xrdb.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2014 Freescale Semiconductor, Inc. + * Copyright 2020 NXP */ #include <common.h> @@ -250,8 +251,69 @@ static u32 t1023rdb_ctrl(u32 ctrl_type) { ccsr_gpio_t __iomem *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR); ccsr_gur_t __iomem *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); - u32 val, orig_bus = i2c_get_bus_num(); + u32 val; u8 tmp; + int bus_num = I2C_PCA6408_BUS_NUM; + +#ifdef CONFIG_DM_I2C + struct udevice *dev; + int ret; + + ret = i2c_get_chip_for_busnum(bus_num, I2C_PCA6408_ADDR, + 1, &dev); + if (ret) { + printf("%s: Cannot find udev for a bus %d\n", __func__, + bus_num); + return ret; + } + switch (ctrl_type) { + case GPIO1_SD_SEL: + val = in_be32(&pgpio->gpdat); + val |= GPIO1_SD_SEL; + out_be32(&pgpio->gpdat, val); + setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL); + break; + case GPIO1_EMMC_SEL: + val = in_be32(&pgpio->gpdat); + val &= ~GPIO1_SD_SEL; + out_be32(&pgpio->gpdat, val); + setbits_be32(&pgpio->gpdir, GPIO1_SD_SEL); + break; + case GPIO3_GET_VERSION: + pgpio = (ccsr_gpio_t *)(CONFIG_SYS_MPC85xx_GPIO_ADDR + + GPIO3_OFFSET); + val = in_be32(&pgpio->gpdat); + val = ((val & GPIO3_BRD_VER_MASK) >> 26) & 0x3; + if (val == 0x3) /* GPIO3_4/5 not used on RevB */ + val = 0; + return val; + case I2C_GET_BANK: + dm_i2c_read(dev, 0, &tmp, 1); + tmp &= 0x7; + tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2); + return tmp; + case I2C_SET_BANK0: + tmp = 0x0; + dm_i2c_write(dev, 1, &tmp, 1); + tmp = 0xf8; + dm_i2c_write(dev, 3, &tmp, 1); + /* asserting HRESET_REQ */ + out_be32(&gur->rstcr, 0x2); + break; + case I2C_SET_BANK4: + tmp = 0x1; + dm_i2c_write(dev, 1, &tmp, 1); + tmp = 0xf8; + dm_i2c_write(dev, 3, &tmp, 1); + out_be32(&gur->rstcr, 0x2); + break; + default: + break; + } +#else + u32 orig_bus; + + orig_bus = i2c_get_bus_num(); switch (ctrl_type) { case GPIO1_SD_SEL: @@ -275,14 +337,14 @@ static u32 t1023rdb_ctrl(u32 ctrl_type) val = 0; return val; case I2C_GET_BANK: - i2c_set_bus_num(I2C_PCA6408_BUS_NUM); + i2c_set_bus_num(bus_num); i2c_read(I2C_PCA6408_ADDR, 0, 1, &tmp, 1); tmp &= 0x7; tmp = ((tmp & 1) << 2) | (tmp & 2) | ((tmp & 4) >> 2); i2c_set_bus_num(orig_bus); return tmp; case I2C_SET_BANK0: - i2c_set_bus_num(I2C_PCA6408_BUS_NUM); + i2c_set_bus_num(bus_num); tmp = 0x0; i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1); tmp = 0xf8; @@ -291,7 +353,7 @@ static u32 t1023rdb_ctrl(u32 ctrl_type) out_be32(&gur->rstcr, 0x2); break; case I2C_SET_BANK4: - i2c_set_bus_num(I2C_PCA6408_BUS_NUM); + i2c_set_bus_num(bus_num); tmp = 0x1; i2c_write(I2C_PCA6408_ADDR, 1, 1, &tmp, 1); tmp = 0xf8; @@ -301,6 +363,7 @@ static u32 t1023rdb_ctrl(u32 ctrl_type) default: break; } +#endif return 0; } |