diff options
author | Yinghai Lu <yinghailu@gmail.com> | 2004-12-03 03:39:04 +0000 |
---|---|---|
committer | Yinghai Lu <yinghailu@gmail.com> | 2004-12-03 03:39:04 +0000 |
commit | 7213d0f513c2a0dbcacbf0a811d01322cd82d25b (patch) | |
tree | f40eb3d7e577af50edbc10f0df921fd34de9e075 /src/drivers | |
parent | 57b6786168683e33c1c6c2d8df6a1e8c0246fbde (diff) | |
download | coreboot-staging-7213d0f513c2a0dbcacbf0a811d01322cd82d25b.zip coreboot-staging-7213d0f513c2a0dbcacbf0a811d01322cd82d25b.tar.gz |
i2c mux support
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1809 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/drivers')
-rw-r--r-- | src/drivers/generic/debug/debug_dev.c | 90 | ||||
-rw-r--r-- | src/drivers/i2c/adm1026/Config.lb | 2 | ||||
-rw-r--r-- | src/drivers/i2c/adm1026/adm1026.c | 68 | ||||
-rw-r--r-- | src/drivers/i2c/adm1026/chip.h | 4 | ||||
-rw-r--r-- | src/drivers/i2c/adm1027/Config.lb | 2 | ||||
-rw-r--r-- | src/drivers/i2c/adm1027/adm1027.c | 72 | ||||
-rw-r--r-- | src/drivers/i2c/adm1027/chip.h | 4 | ||||
-rw-r--r-- | src/drivers/i2c/i2cmux/Config.lb | 2 | ||||
-rw-r--r-- | src/drivers/i2c/i2cmux/chip.h | 4 | ||||
-rw-r--r-- | src/drivers/i2c/i2cmux/i2cmux.c | 44 | ||||
-rw-r--r-- | src/drivers/i2c/lm63/Config.lb | 2 | ||||
-rw-r--r-- | src/drivers/i2c/lm63/chip.h | 4 | ||||
-rw-r--r-- | src/drivers/i2c/lm63/lm63.c | 46 |
13 files changed, 323 insertions, 21 deletions
diff --git a/src/drivers/generic/debug/debug_dev.c b/src/drivers/generic/debug/debug_dev.c index 727d474..56558e1 100644 --- a/src/drivers/generic/debug/debug_dev.c +++ b/src/drivers/generic/debug/debug_dev.c @@ -1,5 +1,6 @@ #include <console/console.h> #include <device/device.h> +#include <device/smbus.h> #include <device/pci.h> #include <device/pci_ids.h> #include <device/pci_ops.h> @@ -46,7 +47,7 @@ static void print_pci_regs_all(void) if(!dev->enabled) { continue; } - printk_debug("\n%02x:%02x:%02x aka %s",i,j,k, dev_path(dev)); + printk_debug("\n%02x:%02x:%02x aka %s",i,j,k, dev_path(dev)); print_pci_regs(dev); } } @@ -56,28 +57,72 @@ static void print_pci_regs_all(void) static void print_msr() { - msr_t msr; - unsigned index; - unsigned eax, ebx, ecx, edx; - index = 0x80000007; - printk_debug("calling cpuid 0x%08x\n", index); - asm volatile( - "cpuid" - : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) - : "a" (index) - ); - printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n", - index, eax, ebx, ecx, edx); - if (edx & (3 << 1)) { - index = 0xC0010042; - printk_debug("Reading msr: 0x%08x\n", index); - msr = rdmsr(index); - printk_debug("msr[0x%08x]: 0x%08x%08x\n", - index, msr.hi, msr.hi); - } + msr_t msr; + unsigned index; + unsigned eax, ebx, ecx, edx; + index = 0x80000007; + printk_debug("calling cpuid 0x%08x\n", index); + asm volatile( + "cpuid" + : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) + : "a" (index) + ); + printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n", + index, eax, ebx, ecx, edx); + if (edx & (3 << 1)) { + index = 0xC0010042; + printk_debug("Reading msr: 0x%08x\n", index); + msr = rdmsr(index); + printk_debug("msr[0x%08x]: 0x%08x%08x\n", + index, msr.hi, msr.hi); + } } - +static void print_smbus_regs(struct device *dev) +{ + int j; + printk_debug("smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link ); + printk_debug("%s", dev_path(dev)); + for(j = 0; j < 256; j++) { + int status; + unsigned char byte; + if ((j & 0xf) == 0) { + printk_debug("\r\n%02x: ", j); + } + status = smbus_read_byte(dev, j); + if (status < 0) { + printk_debug("bad device status= %08x\r\n", status); + break; + } + byte = status & 0xff; + printk_debug("%02x ", byte); + } + printk_debug("\r\n"); +} + +static void print_smbus_regs_all(struct device *dev) +{ + struct device *child; + int i; + if (dev->enabled && dev->path.type == DEVICE_PATH_I2C) + { + // Here don't need to call smbus_set_link, because we scan it from top to down + if( dev->bus->dev->path.type == DEVICE_PATH_I2C) { // it's under i2c MUX so set mux at first + if(ops_smbus_bus(get_pbus_smbus(dev->bus->dev))) { + if(dev->bus->dev->ops && dev->bus->dev->ops->set_link) + dev->bus->dev->ops->set_link(dev->bus->dev, dev->bus->link); + } + } + + if(ops_smbus_bus(get_pbus_smbus(dev))) print_smbus_regs(dev); + } + + for(i=0; i< dev->links; i++) { + for (child = dev->link[i].children; child; child = child->sibling) { + print_smbus_regs_all(child); + } + } +} static void debug_init(device_t dev) { device_t parent; @@ -103,6 +148,9 @@ static void debug_init(device_t dev) case 3: print_msr(); break; + case 4: + print_smbus_regs_all(&dev_root); + break; } } diff --git a/src/drivers/i2c/adm1026/Config.lb b/src/drivers/i2c/adm1026/Config.lb new file mode 100644 index 0000000..52cbfaa --- /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 0000000..f1d61b4 --- /dev/null +++ b/src/drivers/i2c/adm1026/adm1026.c @@ -0,0 +1,68 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/smbus.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <part/hard_reset.h> +#include <cpu/x86/msr.h> +#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 0000000..4ccca76 --- /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 0000000..395ebab --- /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 0000000..fc8ba73 --- /dev/null +++ b/src/drivers/i2c/adm1027/adm1027.c @@ -0,0 +1,72 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/smbus.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <part/hard_reset.h> +#include <cpu/x86/msr.h> +#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 0000000..94c4e88 --- /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 0000000..6bce919 --- /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 0000000..ffaf879 --- /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 0000000..512b19f --- /dev/null +++ b/src/drivers/i2c/i2cmux/i2cmux.c @@ -0,0 +1,44 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/smbus.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <cpu/x86/msr.h> +#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<<link); // output value + smbus_write_byte(dev, 0x03, 0); // all output + } + + } + +} +static void i2cmux_noop(device_t dummy) +{ +} + +static struct device_operations i2cmux_operations = { + .read_resources = i2cmux_noop, + .set_resources = i2cmux_noop, + .enable_resources = i2cmux_noop, + .init = i2cmux_noop, + .scan_bus = scan_static_bus, + .set_link = i2cmux_set_link, +}; + +static void enable_dev(struct device *dev) +{ + if(dev->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 0000000..959c7af --- /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 0000000..5c55846 --- /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 0000000..01abadc --- /dev/null +++ b/src/drivers/i2c/lm63/lm63.c @@ -0,0 +1,46 @@ +#include <console/console.h> +#include <device/device.h> +#include <device/smbus.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <device/pci_ops.h> +#include <cpu/x86/msr.h> +#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, +}; |