From 7213d0f513c2a0dbcacbf0a811d01322cd82d25b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 3 Dec 2004 03:39:04 +0000 Subject: i2c mux support git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1809 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/drivers/i2c/adm1026/Config.lb | 2 ++ src/drivers/i2c/adm1026/adm1026.c | 68 ++++++++++++++++++++++++++++++++++++ src/drivers/i2c/adm1026/chip.h | 4 +++ src/drivers/i2c/adm1027/Config.lb | 2 ++ src/drivers/i2c/adm1027/adm1027.c | 72 +++++++++++++++++++++++++++++++++++++++ src/drivers/i2c/adm1027/chip.h | 4 +++ src/drivers/i2c/i2cmux/Config.lb | 2 ++ src/drivers/i2c/i2cmux/chip.h | 4 +++ src/drivers/i2c/i2cmux/i2cmux.c | 44 ++++++++++++++++++++++++ src/drivers/i2c/lm63/Config.lb | 2 ++ src/drivers/i2c/lm63/chip.h | 4 +++ src/drivers/i2c/lm63/lm63.c | 46 +++++++++++++++++++++++++ 12 files changed, 254 insertions(+) create mode 100644 src/drivers/i2c/adm1026/Config.lb create mode 100644 src/drivers/i2c/adm1026/adm1026.c create mode 100644 src/drivers/i2c/adm1026/chip.h create mode 100644 src/drivers/i2c/adm1027/Config.lb create mode 100644 src/drivers/i2c/adm1027/adm1027.c create mode 100644 src/drivers/i2c/adm1027/chip.h create mode 100644 src/drivers/i2c/i2cmux/Config.lb create mode 100644 src/drivers/i2c/i2cmux/chip.h create mode 100644 src/drivers/i2c/i2cmux/i2cmux.c create mode 100644 src/drivers/i2c/lm63/Config.lb create mode 100644 src/drivers/i2c/lm63/chip.h create mode 100644 src/drivers/i2c/lm63/lm63.c (limited to 'src/drivers/i2c') diff --git a/src/drivers/i2c/adm1026/Config.lb b/src/drivers/i2c/adm1026/Config.lb new file mode 100644 index 0000000000..52cbfaadeb --- /dev/null +++ b/src/drivers/i2c/adm1026/Config.lb @@ -0,0 +1,2 @@ +config chip.h +object adm1026.o diff --git a/src/drivers/i2c/adm1026/adm1026.c b/src/drivers/i2c/adm1026/adm1026.c new file mode 100644 index 0000000000..f1d61b4039 --- /dev/null +++ b/src/drivers/i2c/adm1026/adm1026.c @@ -0,0 +1,68 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include "chip.h" + +#define ADM1026_DEVICE 0x2c /* 0x2e or 0x2d */ +#define ADM1026_REG_CONFIG1 0x00 +#define CFG1_MONITOR 0x01 +#define CFG1_INT_ENABLE 0x02 +#define CFG1_INT_CLEAR 0x04 +#define CFG1_AIN8_9 0x08 +#define CFG1_THERM_HOT 0x10 +#define CFT1_DAC_AFC 0x20 +#define CFG1_PWM_AFC 0x40 +#define CFG1_RESET 0x80 +#define ADM1026_REG_CONFIG2 0x01 +#define ADM1026_REG_CONFIG3 0x07 + +static void adm1026_init(device_t dev) +{ + if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) + { + if(ops_smbus_bus(get_pbus_smbus(dev))) { + if( dev->bus->dev->path.type == DEVICE_PATH_I2C) smbus_set_link(dev); // it is under mux + adm1026_enable_monitoring(dev); + } + + } + +} +static void adm1026_enable_monitoring(device_t dev) +{ + int result; + result = smbus_read_byte(dev, ADM1026_REG_CONFIG1); + + result = (result | CFG1_MONITOR) & ~(CFG1_INT_CLEAR | CFG1_RESET); + result = smbus_write_byte(dev, ADM1026_REG_CONFIG1, result); + + result = smbus_read_byte(dev, ADM1026_REG_CONFIG1); + if (!(result & CFG1_MONITOR)) { + printk_debug("ADM1026: monitoring would not enable"); + } +} +static void adm1026_noop(device_t dummy) +{ +} + +static struct device_operations adm1026_operations = { + .read_resources = adm1026_noop, + .set_resources = adm1026_noop, + .enable_resources = adm1026_noop, + .init = adm1026_init, +}; + +static void enable_dev(struct device *dev) +{ + dev->ops = &adm1026_operations; +} + +struct chip_operations drivers_i2c_adm1026_ops = { + CHIP_NAME("adm1026") + .enable_dev = enable_dev, +}; diff --git a/src/drivers/i2c/adm1026/chip.h b/src/drivers/i2c/adm1026/chip.h new file mode 100644 index 0000000000..4ccca764fb --- /dev/null +++ b/src/drivers/i2c/adm1026/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations drivers_i2c_adm1026_ops; + +struct drivers_i2c_adm1026_config { +}; diff --git a/src/drivers/i2c/adm1027/Config.lb b/src/drivers/i2c/adm1027/Config.lb new file mode 100644 index 0000000000..395ebabf82 --- /dev/null +++ b/src/drivers/i2c/adm1027/Config.lb @@ -0,0 +1,2 @@ +config chip.h +object adm1027.o diff --git a/src/drivers/i2c/adm1027/adm1027.c b/src/drivers/i2c/adm1027/adm1027.c new file mode 100644 index 0000000000..fc8ba732af --- /dev/null +++ b/src/drivers/i2c/adm1027/adm1027.c @@ -0,0 +1,72 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include "chip.h" + +#define ADM1027_REG_CONFIG1 0x40 +#define CFG1_STRT 0x01 +#define CFG1_LOCK 0x02 +#define CFG1_RDY 0x04 +#define CFG1_FSPD 0x08 +#define CFG1_VXI 0x10 +#define CFT1_FSPDIS 0x20 +#define CFG1_TODIS 0x40 +#define CFG1_VCC 0x80 +#define ADM1027_REG_CONFIG2 0x73 +#define ADM1027_REG_CONFIG3 0x78 + +static void adm1027_enable_monitoring(device_t dev) +{ + int result; + result = smbus_read_byte(dev, ADM1027_REG_CONFIG1); + + if(!(result & CFG1_RDY) ) { + printk_debug("ADM1027: monitoring not ready"); + return; + } + result = (result | CFG1_STRT); + result = smbus_write_byte(dev, ADM1027_REG_CONFIG1, result); + + result = smbus_read_byte(dev, ADM1027_REG_CONFIG1); + if (!(result & CFG1_STRT)) { + printk_debug("ADM1027: monitoring would not enable"); + } +} + +static void adm1027_init(device_t dev) +{ + if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) + { + if(ops_smbus_bus(get_pbus_smbus(dev))) { + if( dev->bus->dev->path.type == DEVICE_PATH_I2C) smbus_set_link(dev); // it is under mux + adm1027_enable_monitoring(dev); + } + + } + +} +static void adm1027_noop(device_t dummy) +{ +} + +static struct device_operations adm1027_operations = { + .read_resources = adm1027_noop, + .set_resources = adm1027_noop, + .enable_resources = adm1027_noop, + .init = adm1027_init, +}; + +static void enable_dev(struct device *dev) +{ + dev->ops = &adm1027_operations; +} + +struct chip_operations drivers_i2c_adm1027_ops = { + CHIP_NAME("adm1027") + .enable_dev = enable_dev, +}; diff --git a/src/drivers/i2c/adm1027/chip.h b/src/drivers/i2c/adm1027/chip.h new file mode 100644 index 0000000000..94c4e888e9 --- /dev/null +++ b/src/drivers/i2c/adm1027/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations drivers_i2c_adm1027_ops; + +struct drivers_i2c_adm1027_config { +}; diff --git a/src/drivers/i2c/i2cmux/Config.lb b/src/drivers/i2c/i2cmux/Config.lb new file mode 100644 index 0000000000..6bce919d5d --- /dev/null +++ b/src/drivers/i2c/i2cmux/Config.lb @@ -0,0 +1,2 @@ +config chip.h +object i2cmux.o diff --git a/src/drivers/i2c/i2cmux/chip.h b/src/drivers/i2c/i2cmux/chip.h new file mode 100644 index 0000000000..ffaf87954a --- /dev/null +++ b/src/drivers/i2c/i2cmux/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations drivers_i2c_i2cmux_ops; + +struct drivers_i2c_i2cmux_config { +}; diff --git a/src/drivers/i2c/i2cmux/i2cmux.c b/src/drivers/i2c/i2cmux/i2cmux.c new file mode 100644 index 0000000000..512b19f48a --- /dev/null +++ b/src/drivers/i2c/i2cmux/i2cmux.c @@ -0,0 +1,44 @@ +#include +#include +#include +#include +#include +#include +#include +#include "chip.h" + +static void i2cmux_set_link(device_t dev, unsigned int link) +{ + if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) + { + if(ops_smbus_bus(get_pbus_smbus(dev))) { + smbus_write_byte(dev, 0x01, 1<links>0) + dev->ops = &i2cmux_operations; +} + +struct chip_operations drivers_i2c_i2cmux_ops = { + CHIP_NAME("i2cmux") + .enable_dev = enable_dev, +}; diff --git a/src/drivers/i2c/lm63/Config.lb b/src/drivers/i2c/lm63/Config.lb new file mode 100644 index 0000000000..959c7afa4c --- /dev/null +++ b/src/drivers/i2c/lm63/Config.lb @@ -0,0 +1,2 @@ +config chip.h +object lm63.o diff --git a/src/drivers/i2c/lm63/chip.h b/src/drivers/i2c/lm63/chip.h new file mode 100644 index 0000000000..5c558464f3 --- /dev/null +++ b/src/drivers/i2c/lm63/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations drivers_i2c_lm63_ops; + +struct drivers_i2c_lm63_config { +}; diff --git a/src/drivers/i2c/lm63/lm63.c b/src/drivers/i2c/lm63/lm63.c new file mode 100644 index 0000000000..01abadc420 --- /dev/null +++ b/src/drivers/i2c/lm63/lm63.c @@ -0,0 +1,46 @@ +#include +#include +#include +#include +#include +#include +#include +#include "chip.h" + + +static void lm63_init(device_t dev) +{ + int result; + if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) + { + if(ops_smbus_bus(get_pbus_smbus(dev))) { + if( dev->bus->dev->path.type == DEVICE_PATH_I2C) smbus_set_link(dev); // it is under mux + result = smbus_read_byte(dev, 0x03); +// result &= ~0x04; + result |= 0x04; + smbus_write_byte(dev, 0x03, result & 0xff); // config lm63 + } + + } + +} +static void lm63_noop(device_t dummy) +{ +} + +static struct device_operations lm63_operations = { + .read_resources = lm63_noop, + .set_resources = lm63_noop, + .enable_resources = lm63_noop, + .init = lm63_init, +}; + +static void enable_dev(struct device *dev) +{ + dev->ops = &lm63_operations; +} + +struct chip_operations drivers_i2c_lm63_ops = { + CHIP_NAME("lm63") + .enable_dev = enable_dev, +}; -- cgit v1.2.3