X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fi2c%2Fmxc_i2c.c;h=0362ec676327e053f66b50d211a58086f050dc68;hb=720620e6916ba40b9a173bb07706d2c73f3c23e7;hp=3b0d27e6cdb4316416368fe5bcb64dfae7670402;hpb=b0b13f4114d30b6756e0f6f3b5819d78de22541e;p=platform%2Fkernel%2Fu-boot.git diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index 3b0d27e..0362ec6 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -4,6 +4,7 @@ * * (c) 2007 Pengutronix, Sascha Hauer * (c) 2011 Marek Vasut + * Copyright 2020 NXP * * Based on i2c-imx.c from linux kernel: * Copyright (C) 2005 Torsten Koschorrek @@ -341,6 +342,57 @@ static int i2c_init_transfer_(struct mxc_i2c_bus *i2c_bus, u8 chip, return 0; } +#if !defined(I2C2_BASE_ADDR) +#define I2C2_BASE_ADDR 0 +#endif + +#if !defined(I2C3_BASE_ADDR) +#define I2C3_BASE_ADDR 0 +#endif + +#if !defined(I2C4_BASE_ADDR) +#define I2C4_BASE_ADDR 0 +#endif + +#if !defined(I2C5_BASE_ADDR) +#define I2C5_BASE_ADDR 0 +#endif + +#if !defined(I2C6_BASE_ADDR) +#define I2C6_BASE_ADDR 0 +#endif + +#if !defined(I2C7_BASE_ADDR) +#define I2C7_BASE_ADDR 0 +#endif + +#if !defined(I2C8_BASE_ADDR) +#define I2C8_BASE_ADDR 0 +#endif + +static struct mxc_i2c_bus mxc_i2c_buses[] = { +#if defined(CONFIG_ARCH_LS1021A) || defined(CONFIG_VF610) || \ + defined(CONFIG_FSL_LAYERSCAPE) + { 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG }, + { 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG }, + { 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG }, + { 3, I2C4_BASE_ADDR, I2C_QUIRK_FLAG }, + { 4, I2C5_BASE_ADDR, I2C_QUIRK_FLAG }, + { 5, I2C6_BASE_ADDR, I2C_QUIRK_FLAG }, + { 6, I2C7_BASE_ADDR, I2C_QUIRK_FLAG }, + { 7, I2C8_BASE_ADDR, I2C_QUIRK_FLAG }, +#else + { 0, I2C1_BASE_ADDR, 0 }, + { 1, I2C2_BASE_ADDR, 0 }, + { 2, I2C3_BASE_ADDR, 0 }, + { 3, I2C4_BASE_ADDR, 0 }, + { 4, I2C5_BASE_ADDR, 0 }, + { 5, I2C6_BASE_ADDR, 0 }, + { 6, I2C7_BASE_ADDR, 0 }, + { 7, I2C8_BASE_ADDR, 0 }, +#endif +}; + #ifndef CONFIG_DM_I2C int i2c_idle_bus(struct mxc_i2c_bus *i2c_bus) { @@ -434,6 +486,24 @@ exit: return ret; } #endif +/* + * Early init I2C for prepare read the clk through I2C. + */ +void i2c_early_init_f(void) +{ + ulong base = mxc_i2c_buses[I2C_EARLY_INIT_INDEX].base; + bool quirk = mxc_i2c_buses[I2C_EARLY_INIT_INDEX].driver_data + & I2C_QUIRK_FLAG ? true : false; + int reg_shift = quirk ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT; + + /* Set I2C divider value */ + writeb(I2C_IFDR_DIV_CONSERVATIVE, base + (IFDR << reg_shift)); + /* Reset module */ + writeb(I2CR_IDIS, base + (I2CR << reg_shift)); + writeb(0, base + (I2SR << reg_shift)); + /* Enable I2C */ + writeb(I2CR_IEN, base + (I2CR << reg_shift)); +} static int i2c_init_transfer(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr, int alen) @@ -662,57 +732,6 @@ static int bus_i2c_write(struct mxc_i2c_bus *i2c_bus, u8 chip, u32 addr, return ret; } -#if !defined(I2C2_BASE_ADDR) -#define I2C2_BASE_ADDR 0 -#endif - -#if !defined(I2C3_BASE_ADDR) -#define I2C3_BASE_ADDR 0 -#endif - -#if !defined(I2C4_BASE_ADDR) -#define I2C4_BASE_ADDR 0 -#endif - -#if !defined(I2C5_BASE_ADDR) -#define I2C5_BASE_ADDR 0 -#endif - -#if !defined(I2C6_BASE_ADDR) -#define I2C6_BASE_ADDR 0 -#endif - -#if !defined(I2C7_BASE_ADDR) -#define I2C7_BASE_ADDR 0 -#endif - -#if !defined(I2C8_BASE_ADDR) -#define I2C8_BASE_ADDR 0 -#endif - -static struct mxc_i2c_bus mxc_i2c_buses[] = { -#if defined(CONFIG_ARCH_LS1021A) || defined(CONFIG_VF610) || \ - defined(CONFIG_FSL_LAYERSCAPE) - { 0, I2C1_BASE_ADDR, I2C_QUIRK_FLAG }, - { 1, I2C2_BASE_ADDR, I2C_QUIRK_FLAG }, - { 2, I2C3_BASE_ADDR, I2C_QUIRK_FLAG }, - { 3, I2C4_BASE_ADDR, I2C_QUIRK_FLAG }, - { 4, I2C5_BASE_ADDR, I2C_QUIRK_FLAG }, - { 5, I2C6_BASE_ADDR, I2C_QUIRK_FLAG }, - { 6, I2C7_BASE_ADDR, I2C_QUIRK_FLAG }, - { 7, I2C8_BASE_ADDR, I2C_QUIRK_FLAG }, -#else - { 0, I2C1_BASE_ADDR, 0 }, - { 1, I2C2_BASE_ADDR, 0 }, - { 2, I2C3_BASE_ADDR, 0 }, - { 3, I2C4_BASE_ADDR, 0 }, - { 4, I2C5_BASE_ADDR, 0 }, - { 5, I2C6_BASE_ADDR, 0 }, - { 6, I2C7_BASE_ADDR, 0 }, - { 7, I2C8_BASE_ADDR, 0 }, -#endif -}; - struct mxc_i2c_bus *i2c_get_base(struct i2c_adapter *adap) { return &mxc_i2c_buses[adap->hwadapnr]; @@ -778,24 +797,7 @@ void bus_i2c_init(int index, int speed, int unused, bus_i2c_set_bus_speed(&mxc_i2c_buses[index], speed); } -/* - * Early init I2C for prepare read the clk through I2C. - */ -void i2c_early_init_f(void) -{ - ulong base = mxc_i2c_buses[I2C_EARLY_INIT_INDEX].base; - bool quirk = mxc_i2c_buses[I2C_EARLY_INIT_INDEX].driver_data - & I2C_QUIRK_FLAG ? true : false; - int reg_shift = quirk ? VF610_I2C_REGSHIFT : IMX_I2C_REGSHIFT; - /* Set I2C divider value */ - writeb(I2C_IFDR_DIV_CONSERVATIVE, base + (IFDR << reg_shift)); - /* Reset module */ - writeb(I2CR_IDIS, base + (I2CR << reg_shift)); - writeb(0, base + (I2SR << reg_shift)); - /* Enable I2C */ - writeb(I2CR_IEN, base + (I2CR << reg_shift)); -} /* * Init I2C Bus @@ -899,7 +901,7 @@ static int mxc_i2c_probe(struct udevice *bus) i2c_bus->driver_data = dev_get_driver_data(bus); - addr = devfdt_get_addr(bus); + addr = dev_read_addr(bus); if (addr == FDT_ADDR_T_NONE) return -EINVAL; @@ -912,7 +914,7 @@ static int mxc_i2c_probe(struct udevice *bus) } i2c_bus->base = addr; - i2c_bus->index = bus->seq; + i2c_bus->index = dev_seq(bus); i2c_bus->bus = bus; /* Enable clk */ @@ -928,7 +930,7 @@ static int mxc_i2c_probe(struct udevice *bus) return ret; } #else - ret = enable_i2c_clk(1, bus->seq); + ret = enable_i2c_clk(1, dev_seq(bus)); if (ret < 0) return ret; #endif @@ -939,7 +941,8 @@ static int mxc_i2c_probe(struct udevice *bus) */ ret = fdt_stringlist_search(fdt, node, "pinctrl-names", "gpio"); if (ret < 0) { - debug("i2c bus %d at 0x%2lx, no gpio pinctrl state.\n", bus->seq, i2c_bus->base); + debug("i2c bus %d at 0x%2lx, no gpio pinctrl state.\n", + dev_seq(bus), i2c_bus->base); } else { ret = gpio_request_by_name_nodev(offset_to_ofnode(node), "scl-gpios", 0, &i2c_bus->scl_gpio, @@ -950,7 +953,9 @@ static int mxc_i2c_probe(struct udevice *bus) if (!dm_gpio_is_valid(&i2c_bus->sda_gpio) || !dm_gpio_is_valid(&i2c_bus->scl_gpio) || ret || ret2) { - dev_err(dev, "i2c bus %d at %lu, fail to request scl/sda gpio\n", bus->seq, i2c_bus->base); + dev_err(bus, + "i2c bus %d at 0x%2lx, fail to request scl/sda gpio\n", + dev_seq(bus), i2c_bus->base); return -EINVAL; } } @@ -961,7 +966,7 @@ static int mxc_i2c_probe(struct udevice *bus) */ debug("i2c : controller bus %d at %lu , speed %d: ", - bus->seq, i2c_bus->base, + dev_seq(bus), i2c_bus->base, i2c_bus->speed); return 0; @@ -1067,7 +1072,7 @@ U_BOOT_DRIVER(i2c_mxc) = { .id = UCLASS_I2C, .of_match = mxc_i2c_ids, .probe = mxc_i2c_probe, - .priv_auto_alloc_size = sizeof(struct mxc_i2c_bus), + .priv_auto = sizeof(struct mxc_i2c_bus), .ops = &mxc_i2c_ops, .flags = DM_FLAG_PRE_RELOC, };