qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Glenn Miles <milesg@linux.vnet.ibm.com>
To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org
Cc: "Glenn Miles" <milesg@linux.vnet.ibm.com>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Frédéric Barrat" <fbarrat@linux.ibm.com>
Subject: [PATCH v5 8/9] ppc/pnv: Add a pca9554 I2C device to powernv10-rainier
Date: Tue, 21 Nov 2023 13:09:44 -0600	[thread overview]
Message-ID: <20231121190945.3140221-9-milesg@linux.vnet.ibm.com> (raw)
In-Reply-To: <20231121190945.3140221-1-milesg@linux.vnet.ibm.com>

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.

Signed-off-by: Glenn Miles <milesg@linux.vnet.ibm.com>
---

No change from previous version

 hw/misc/Kconfig     | 4 ++++
 hw/misc/meson.build | 1 +
 hw/ppc/Kconfig      | 1 +
 hw/ppc/pnv.c        | 6 ++++++
 4 files changed, 12 insertions(+)

diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
index cc8a8c1418..c347a132c2 100644
--- a/hw/misc/Kconfig
+++ b/hw/misc/Kconfig
@@ -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
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 36c20d5637..c39410e4a7 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -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'))
diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index f77ca773cf..2302778265 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -33,6 +33,7 @@ config POWERNV
     select FDT_PPC
     select PCI_POWERNV
     select PCA9552
+    select PCA9554
 
 config PPC405
     bool
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 088824fd9f..1dab7c57e8 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -1918,6 +1918,12 @@ static void pnv_rainier_i2c_init(PnvMachineState *pnv)
                               qdev_get_gpio_in(DEVICE(hotplug), 8));
         qdev_connect_gpio_out(DEVICE(hotplug), 4,
                               qdev_get_gpio_in(DEVICE(hotplug), 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);
     }
 }
 
-- 
2.31.1



  parent reply	other threads:[~2023-11-21 19:12 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-21 19:09 [PATCH v5 0/9] Add powernv10 I2C devices and tests Glenn Miles
2023-11-21 19:09 ` [PATCH v5 1/9] misc/pca9552: Fix inverted input status Glenn Miles
2023-11-21 19:09 ` [PATCH v5 2/9] misc/pca9552: Let external devices set pca9552 inputs Glenn Miles
2023-11-21 19:09 ` [PATCH v5 3/9] ppc/pnv: New powernv10-rainier machine type Glenn Miles
2023-11-24  8:33   ` Cédric Le Goater
2023-11-21 19:09 ` [PATCH v5 4/9] ppc/pnv: Add pca9552 to powernv10-rainier for PCIe hotplug power control Glenn Miles
2023-11-21 19:09 ` [PATCH v5 5/9] ppc/pnv: Wire up pca9552 GPIO pins " Glenn Miles
2023-11-24  8:33   ` Cédric Le Goater
2023-11-21 19:09 ` [PATCH v5 6/9] ppc/pnv: Use resettable interface to reset child I2C buses Glenn Miles
2023-11-21 19:09 ` [PATCH v5 7/9] misc: Add a pca9554 GPIO device model Glenn Miles
2023-11-22  8:55   ` Cédric Le Goater
2023-11-27 16:48     ` Miles Glenn
2023-11-24  8:35   ` Cédric Le Goater
2023-11-21 19:09 ` Glenn Miles [this message]
2023-11-24  8:34   ` [PATCH v5 8/9] ppc/pnv: Add a pca9554 I2C device to powernv10-rainier Cédric Le Goater
2023-11-21 19:09 ` [PATCH v5 9/9] ppc/pnv: Test pnv i2c master and connected devices Glenn Miles
2023-11-24  8:36 ` [PATCH v5 0/9] Add powernv10 I2C devices and tests Cédric Le Goater
2023-11-24 10:39   ` Nicholas Piggin
2023-11-24 11:04     ` Cédric Le Goater

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20231121190945.3140221-9-milesg@linux.vnet.ibm.com \
    --to=milesg@linux.vnet.ibm.com \
    --cc=clg@kaod.org \
    --cc=fbarrat@linux.ibm.com \
    --cc=npiggin@gmail.com \
    --cc=qemu-devel@nongnu.org \
    --cc=qemu-ppc@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).