mirrors/qemu
0
0
Fork 0
mirror of https://github.com/qemu/qemu.git synced 2024-12-14 06:53:43 +08:00
Code Issues Packages Projects Releases Wiki Activity

ppc/pnv: Add a pca9554 I2C device to powernv10-rainier

Browse Source 
For powernv10-rainier, the Power Hypervisor code expects to see a
pca9554 device connected to the 3rd PNV I2C engine on port 1 at I2C
address 0x25 (or left-justified address of 0x4A).  This is used by
the hypervisor code to detect if a "Cable Card" is present.

Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Glenn Miles 2024-02-05 17:40:16 +10:00 committed by Nicholas Piggin
parent de0c7d543b
commit 6aa4ef32cc
4 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
hw/misc/Kconfig
View File

@ -34,6 +34,10 @@ config PCA9552
bool
depends on I2C
config PCA9554
bool
depends on I2C
config I2C_ECHO
bool
default y if TEST_DEVICES

1
hw/misc/meson.build
View File

@ -4,6 +4,7 @@ system_ss.add(when: 'CONFIG_FW_CFG_DMA', if_true: files('vmcoreinfo.c'))
system_ss.add(when: 'CONFIG_ISA_DEBUG', if_true: files('debugexit.c'))
system_ss.add(when: 'CONFIG_ISA_TESTDEV', if_true: files('pc-testdev.c'))
system_ss.add(when: 'CONFIG_PCA9552', if_true: files('pca9552.c'))
system_ss.add(when: 'CONFIG_PCA9554', if_true: files('pca9554.c'))
system_ss.add(when: 'CONFIG_PCI_TESTDEV', if_true: files('pci-testdev.c'))
system_ss.add(when: 'CONFIG_UNIMP', if_true: files('unimp.c'))
system_ss.add(when: 'CONFIG_EMPTY_SLOT', if_true: files('empty_slot.c'))

1
hw/ppc/Kconfig
View File

@ -33,6 +33,7 @@ config POWERNV
select FDT_PPC
select PCI_POWERNV
select PCA9552
select PCA9554
config PPC405
bool

6
hw/ppc/pnv.c
View File

@ -1913,6 +1913,12 @@ static void pnv_rainier_i2c_init(PnvMachineState *pnv)
qdev_connect_gpio_out(DEVICE(dev), 2, qdev_get_gpio_in(DEVICE(dev), 7));
qdev_connect_gpio_out(DEVICE(dev), 3, qdev_get_gpio_in(DEVICE(dev), 8));
qdev_connect_gpio_out(DEVICE(dev), 4, qdev_get_gpio_in(DEVICE(dev), 9));
/*
* Add a PCA9554 I2C device for cable card presence detection
* to engine 2, bus 1, address 0x25
*/
i2c_slave_create_simple(chip10->i2c[2].busses[1], "pca9554", 0x25);
}
}