From: khilman@deeprootsystems•com (Kevin Hilman)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v1] davinci: Add I2C0 devices to MityDSP-L138/MityARM-1808 platform
Date: Tue, 07 Sep 2010 08:39:43 -0700 [thread overview]
Message-ID: <87r5h5imv4.fsf@deeprootsystems.com> (raw)
In-Reply-To: <1283707779-23204-1-git-send-email-michael.williamson@criticallink.com> (Michael Williamson's message of "Sun, 5 Sep 2010 13:29:39 -0400")
Michael Williamson <michael.williamson@criticallink•com> writes:
> This patch adds the i2c0 bus and attached devices to the MityDSP-L138
> and MityARM-1808 davinci SoM. Included is a TPS65023 voltage regulator
> needed for power management and a small 24c02 EPROM that contains
> factory configuration data.
>
> Signed-off-by: Michael Williamson <michael.williamson@criticallink•com>
Applying and queing for 2.6.37 in davinci-next.
Kevin
> ---
> This is based on 08f143b7cdbe9705f6856c2a63b6d3b14b5a8eee of davinci-linux
> tree.
>
> Changes since v0:
> 1. Misc formatting
>
> arch/arm/mach-davinci/board-mityomapl138.c | 145 ++++++++++++++++++++++++++++
> 1 files changed, 145 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
> index 7146916..84d5aff 100644
> --- a/arch/arm/mach-davinci/board-mityomapl138.c
> +++ b/arch/arm/mach-davinci/board-mityomapl138.c
> @@ -13,6 +13,8 @@
> #include <linux/console.h>
> #include <linux/platform_device.h>
> #include <linux/mtd/partitions.h>
> +#include <linux/regulator/machine.h>
> +#include <linux/i2c.h>
>
> #include <asm/mach-types.h>
> #include <asm/mach/arch.h>
> @@ -25,6 +27,141 @@
> #define MITYOMAPL138_PHY_MASK 0x08 /* hardcoded for now */
> #define MITYOMAPL138_MDIO_FREQUENCY (2200000) /* PHY bus frequency */
>
> +static struct davinci_i2c_platform_data mityomap_i2c_0_pdata = {
> + .bus_freq = 100, /* kHz */
> + .bus_delay = 0, /* usec */
> +};
> +
> +/* TPS65023 voltage regulator support */
> +/* 1.2V Core */
> +struct regulator_consumer_supply tps65023_dcdc1_consumers[] = {
> + {
> + .supply = "cvdd",
> + },
> +};
> +
> +/* 1.8V */
> +struct regulator_consumer_supply tps65023_dcdc2_consumers[] = {
> + {
> + .supply = "usb0_vdda18",
> + },
> + {
> + .supply = "usb1_vdda18",
> + },
> + {
> + .supply = "ddr_dvdd18",
> + },
> + {
> + .supply = "sata_vddr",
> + },
> +};
> +
> +/* 1.2V */
> +struct regulator_consumer_supply tps65023_dcdc3_consumers[] = {
> + {
> + .supply = "sata_vdd",
> + },
> + {
> + .supply = "usb_cvdd",
> + },
> + {
> + .supply = "pll0_vdda",
> + },
> + {
> + .supply = "pll1_vdda",
> + },
> +};
> +
> +/* 1.8V Aux LDO, not used */
> +struct regulator_consumer_supply tps65023_ldo1_consumers[] = {
> + {
> + .supply = "1.8v_aux",
> + },
> +};
> +
> +/* FPGA VCC Aux (2.5 or 3.3) LDO */
> +struct regulator_consumer_supply tps65023_ldo2_consumers[] = {
> + {
> + .supply = "vccaux",
> + },
> +};
> +
> +struct regulator_init_data tps65023_regulator_data[] = {
> + /* dcdc1 */
> + {
> + .constraints = {
> + .min_uV = 1150000,
> + .max_uV = 1350000,
> + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
> + REGULATOR_CHANGE_STATUS,
> + .boot_on = 1,
> + },
> + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc1_consumers),
> + .consumer_supplies = tps65023_dcdc1_consumers,
> + },
> + /* dcdc2 */
> + {
> + .constraints = {
> + .min_uV = 1800000,
> + .max_uV = 1800000,
> + .valid_ops_mask = REGULATOR_CHANGE_STATUS,
> + .boot_on = 1,
> + },
> + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc2_consumers),
> + .consumer_supplies = tps65023_dcdc2_consumers,
> + },
> + /* dcdc3 */
> + {
> + .constraints = {
> + .min_uV = 1200000,
> + .max_uV = 1200000,
> + .valid_ops_mask = REGULATOR_CHANGE_STATUS,
> + .boot_on = 1,
> + },
> + .num_consumer_supplies = ARRAY_SIZE(tps65023_dcdc3_consumers),
> + .consumer_supplies = tps65023_dcdc3_consumers,
> + },
> + /* ldo1 */
> + {
> + .constraints = {
> + .min_uV = 1800000,
> + .max_uV = 1800000,
> + .valid_ops_mask = REGULATOR_CHANGE_STATUS,
> + .boot_on = 1,
> + },
> + .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo1_consumers),
> + .consumer_supplies = tps65023_ldo1_consumers,
> + },
> + /* ldo2 */
> + {
> + .constraints = {
> + .min_uV = 2500000,
> + .max_uV = 3300000,
> + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
> + REGULATOR_CHANGE_STATUS,
> + .boot_on = 1,
> + },
> + .num_consumer_supplies = ARRAY_SIZE(tps65023_ldo2_consumers),
> + .consumer_supplies = tps65023_ldo2_consumers,
> + },
> +};
> +
> +static struct i2c_board_info __initdata mityomap_tps65023_info[] = {
> + {
> + I2C_BOARD_INFO("tps65023", 0x48),
> + .platform_data = &tps65023_regulator_data[0],
> + },
> + {
> + I2C_BOARD_INFO("24c02", 0x50),
> + },
> +};
> +
> +static int __init pmic_tps65023_init(void)
> +{
> + return i2c_register_board_info(1, mityomap_tps65023_info,
> + ARRAY_SIZE(mityomap_tps65023_info));
> +}
> +
> /*
> * MityDSP-L138 includes a 256 MByte large-page NAND flash
> * (128K blocks).
> @@ -172,6 +309,14 @@ static void __init mityomapl138_init(void)
>
> davinci_serial_init(&mityomapl138_uart_config);
>
> + ret = da8xx_register_i2c(0, &mityomap_i2c_0_pdata);
> + if (ret)
> + pr_warning("i2c0 registration failed: %d\n", ret);
> +
> + ret = pmic_tps65023_init();
> + if (ret)
> + pr_warning("TPS65023 PMIC init failed: %d\n", ret);
> +
> mityomapl138_setup_nand();
>
> mityomapl138_config_emac();
prev parent reply other threads:[~2010-09-07 15:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-05 17:29 [PATCH v1] davinci: Add I2C0 devices to MityDSP-L138/MityARM-1808 platform Michael Williamson
2010-09-07 15:39 ` Kevin Hilman [this message]
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