Thread (14 messages) flat view 14 messages, 4 authors, 2012-08-16

Re: [PATCH V7 3/3] powerpc/fsl-pci: Unify pci/pcie initialization code

From: Scott Wood <hidden>
Date: 2012-08-15 17:35:09

On 08/15/2012 03:57 AM, Jia Hongtao wrote:
We unified the Freescale pci/pcie initialization by changing the fsl_pci
to a platform driver. In previous PCI code architecture the initialization
routine is called at board_setup_arch stage. Now the initialization is done
in probe function which is architectural better. Also It's convenient for
adding PM support for PCI controller in later patch.

We also change the way of determining primary bus for fitting platform
driver. Two previous patches are the preparation for this.

Now we registered pci controllers as platform devices. So we combine two
initialization code as one platform driver.

Signed-off-by: Jia Hongtao <redacted>
Signed-off-by: Li Yang <redacted>
Signed-off-by: Chunhe Lan <redacted>
---
Changes for V7:
- Separate V6 to three functional independent patches.

 arch/powerpc/platforms/85xx/common.c       |   10 +++
 arch/powerpc/platforms/85xx/corenet_ds.c   |   31 +--------
 arch/powerpc/platforms/85xx/ge_imp3a.c     |   48 +------------
 arch/powerpc/platforms/85xx/mpc8536_ds.c   |   36 +---------
 arch/powerpc/platforms/85xx/mpc85xx_ads.c  |    9 +--
 arch/powerpc/platforms/85xx/mpc85xx_cds.c  |   14 +----
 arch/powerpc/platforms/85xx/mpc85xx_ds.c   |   38 ++--------
 arch/powerpc/platforms/85xx/mpc85xx_mds.c  |   38 +---------
 arch/powerpc/platforms/85xx/mpc85xx_rdb.c  |   28 +++-----
 arch/powerpc/platforms/85xx/p1010rdb.c     |   14 +----
 arch/powerpc/platforms/85xx/p1022_ds.c     |   34 +---------
 arch/powerpc/platforms/85xx/p1022_rdk.c    |   34 +---------
 arch/powerpc/platforms/85xx/p1023_rds.c    |    7 +--
 arch/powerpc/platforms/85xx/p2041_rdb.c    |    2 +-
 arch/powerpc/platforms/85xx/p3041_ds.c     |    2 +-
 arch/powerpc/platforms/85xx/p4080_ds.c     |    2 +-
 arch/powerpc/platforms/85xx/p5020_ds.c     |    2 +-
 arch/powerpc/platforms/85xx/p5040_ds.c     |    2 +-
 arch/powerpc/platforms/85xx/qemu_e500.c    |    3 +-
 arch/powerpc/platforms/85xx/sbc8548.c      |   19 +-----
 arch/powerpc/platforms/85xx/socrates.c     |   11 +---
 arch/powerpc/platforms/85xx/stx_gp3.c      |   11 +---
 arch/powerpc/platforms/85xx/tqm85xx.c      |   21 +------
 arch/powerpc/platforms/85xx/xes_mpc85xx.c  |   54 ++-------------
 arch/powerpc/platforms/86xx/gef_ppc9a.c    |   10 +--
 arch/powerpc/platforms/86xx/gef_sbc310.c   |   11 +---
 arch/powerpc/platforms/86xx/gef_sbc610.c   |   10 +--
 arch/powerpc/platforms/86xx/mpc8610_hpcd.c |   19 +----
 arch/powerpc/platforms/86xx/mpc86xx_hpcn.c |   40 +----------
 arch/powerpc/platforms/86xx/sbc8641d.c     |   12 +---
 arch/powerpc/sysdev/fsl_pci.c              |  102 +++++++++++++++++-----------
 arch/powerpc/sysdev/fsl_pci.h              |    9 ++-
 drivers/edac/mpc85xx_edac.c                |   43 +++---------
 33 files changed, 160 insertions(+), 566 deletions(-)
Please separate the core changes from the conversion of boards.  The
easiest way to do this is to convert them to using fsl_pci_init() first.

Which boards have you tested on?
-void __devinit fsl_pci_init(void)
+/* Checkout if PCI contains ISA node */
+static int of_pci_has_isa(struct device_node *pci_node)
+{
+	struct device_node *np;
+	int ret = 0;
+
+	if (!pci_node)
+		return 0;
+
+	read_lock(&devtree_lock);
+	np = pci_node->allnext;
+
+	/* Only scan the children of PCI node */
+	for (; np != pci_node->sibling; np = np->allnext) {
+		if (np->type && (of_node_cmp(np->type, "isa") == 0)
+		    && of_node_get(np)) {
+			ret = 1;
+			break;
+		}
+	}
+
+	of_node_put(pci_node);
+	read_unlock(&devtree_lock);
+
+	return ret;
+}
Didn't Kumar already say to leave this alone?  Do you think you'll get
your patches merged by eternal stubornness?

-Scott
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