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hw/i2c/aspeed: Add AST2700 support

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Introduce a new ast2700 class to support AST2700.
The I2C bus register memory regions and
I2C bus pool buffer memory regions are discontinuous
and they do not back compatible AST2600.

Add a new ast2700 i2c class init function to match the
address of I2C bus register and pool buffer from the datasheet.

An I2C controller registers owns 8KB address space.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Jamin Lin 2024-09-03 16:35:22 +08:00 committed by Cédric Le Goater
parent c400c38854
commit 1809ab6a67
2 changed files with 63 additions and 0 deletions
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62
hw/i2c/aspeed_i2c.c
View File

@ -1102,6 +1102,41 @@ static void aspeed_i2c_instance_init(Object *obj)
* 0xDA0 ... 0xDBF: Device 14 buffer
* 0xDC0 ... 0xDDF: Device 15 buffer (15 and 16 unused in AST1030)
* 0xDE0 ... 0xDFF: Device 16 buffer
*
* Address Definitions (AST2700)
* 0x000 ... 0x0FF: Global Register
* 0x100 ... 0x17F: Device 0
* 0x1A0 ... 0x1BF: Device 0 buffer
* 0x200 ... 0x27F: Device 1
* 0x2A0 ... 0x2BF: Device 1 buffer
* 0x300 ... 0x37F: Device 2
* 0x3A0 ... 0x3BF: Device 2 buffer
* 0x400 ... 0x47F: Device 3
* 0x4A0 ... 0x4BF: Device 3 buffer
* 0x500 ... 0x57F: Device 4
* 0x5A0 ... 0x5BF: Device 4 buffer
* 0x600 ... 0x67F: Device 5
* 0x6A0 ... 0x6BF: Device 5 buffer
* 0x700 ... 0x77F: Device 6
* 0x7A0 ... 0x7BF: Device 6 buffer
* 0x800 ... 0x87F: Device 7
* 0x8A0 ... 0x8BF: Device 7 buffer
* 0x900 ... 0x97F: Device 8
* 0x9A0 ... 0x9BF: Device 8 buffer
* 0xA00 ... 0xA7F: Device 9
* 0xAA0 ... 0xABF: Device 9 buffer
* 0xB00 ... 0xB7F: Device 10
* 0xBA0 ... 0xBBF: Device 10 buffer
* 0xC00 ... 0xC7F: Device 11
* 0xCA0 ... 0xCBF: Device 11 buffer
* 0xD00 ... 0xD7F: Device 12
* 0xDA0 ... 0xDBF: Device 12 buffer
* 0xE00 ... 0xE7F: Device 13
* 0xEA0 ... 0xEBF: Device 13 buffer
* 0xF00 ... 0xF7F: Device 14
* 0xFA0 ... 0xFBF: Device 14 buffer
* 0x1000 ... 0x107F: Device 15
* 0x10A0 ... 0x10BF: Device 15 buffer
*/
static void aspeed_i2c_realize(DeviceState *dev, Error **errp)
{
@ -1501,6 +1536,32 @@ static const TypeInfo aspeed_1030_i2c_info = {
.class_init = aspeed_1030_i2c_class_init,
};
static void aspeed_2700_i2c_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
AspeedI2CClass *aic = ASPEED_I2C_CLASS(klass);
dc->desc = "ASPEED 2700 I2C Controller";
aic->num_busses = 16;
aic->reg_size = 0x80;
aic->reg_gap_size = 0x80;
aic->gap = -1; /* no gap */
aic->bus_get_irq = aspeed_2600_i2c_bus_get_irq;
aic->pool_size = 0x20;
aic->pool_gap_size = 0xe0;
aic->pool_base = 0x1a0;
aic->bus_pool_base = aspeed_2500_i2c_bus_pool_base;
aic->has_dma = true;
aic->mem_size = 0x2000;
}
static const TypeInfo aspeed_2700_i2c_info = {
.name = TYPE_ASPEED_2700_I2C,
.parent = TYPE_ASPEED_I2C,
.class_init = aspeed_2700_i2c_class_init,
};
static void aspeed_i2c_register_types(void)
{
type_register_static(&aspeed_i2c_bus_info);
@ -1510,6 +1571,7 @@ static void aspeed_i2c_register_types(void)
type_register_static(&aspeed_2500_i2c_info);
type_register_static(&aspeed_2600_i2c_info);
type_register_static(&aspeed_1030_i2c_info);
type_register_static(&aspeed_2700_i2c_info);
}
type_init(aspeed_i2c_register_types)

1
include/hw/i2c/aspeed_i2c.h
View File

@ -31,6 +31,7 @@
#define TYPE_ASPEED_2500_I2C TYPE_ASPEED_I2C "-ast2500"
#define TYPE_ASPEED_2600_I2C TYPE_ASPEED_I2C "-ast2600"
#define TYPE_ASPEED_1030_I2C TYPE_ASPEED_I2C "-ast1030"
#define TYPE_ASPEED_2700_I2C TYPE_ASPEED_I2C "-ast2700"
OBJECT_DECLARE_TYPE(AspeedI2CState, AspeedI2CClass, ASPEED_I2C)
#define ASPEED_I2C_NR_BUSSES 16