[PATCH -next] fsl_pq_mdio: Use proper address translation
From: Anton Vorontsov <hidden>
Date: 2009-03-19 16:48:09
Currently the driver just read "reg" property for constructing MDIO bus IDs, but this won't work when we'll start using "ranges = <>" in the device tree, so this will pop up: Freescale PowerQUICC MII Bus: probed sysfs: duplicate filename 'mdio@520' can not be created ------------[ cut here ]------------ Badness at c00cb6b8 [verbose debug info unavailable] NIP: c00cb6b8 LR: c00cb6b8 CTR: c001271c REGS: cf82fc10 TRAP: 0700 Not tainted (2.6.29-rc7-03702-g7ccd10f) MSR: 00029032 <EE,ME,CE,IR,DR> CR: 42044022 XER: 20000000 TASK = cf81fbd0[1] 'swapper' THREAD: cf82e000 GPR00: c00cb6b8 cf82fcc0 cf81fbd0 0000003b 00000e42 ffffffff 00004000 00000e42 GPR08: c03cb0fc c03bfbdc 00000e42 c03cac50 22044022 1006a2bc 0ffcb000 00000000 GPR16: 0ffc04b0 0ffc5a40 00000000 0ffc79a8 0f7863a8 00000004 00000000 00000000 GPR24: c033a6a8 d1014520 cf85e840 cf82fd08 cf87cf2c cf82fcd8 cf85dea8 ffffffef NIP [c00cb6b8] sysfs_add_one+0x4c/0x54 LR [c00cb6b8] sysfs_add_one+0x4c/0x54 Call Trace: [cf82fcc0] [c00cb6b8] sysfs_add_one+0x4c/0x54 (unreliable) [cf82fcd0] [c00cbc18] create_dir+0x58/0xc0 [cf82fd00] [c00cbcc0] sysfs_create_dir+0x40/0x70 [cf82fd20] [c0159388] create_dir+0x28/0x78 [cf82fd30] [c0159824] kobject_add_internal+0x98/0x13c [cf82fd50] [c0159e98] kobject_add+0x60/0x98 [cf82fd80] [c018a480] device_add+0x98/0x2ac [cf82fda0] [c01a2380] mdiobus_register+0xbc/0x1c0 [cf82fdc0] [c019f31c] fsl_pq_mdio_probe+0x284/0x2a0 [cf82fe00] [c0223814] of_platform_device_probe+0x5c/0x84 ... This patch fixes the issue by translating the "reg" property to a full address, and thus avoids the duplicate names. Signed-off-by: Anton Vorontsov <redacted> --- On Thu, Mar 19, 2009 at 03:57:10AM -0500, Kumar Gala wrote: [...]
quoted
This is for 2.6.30 since we don't use ranges = <> yet. David, I believe Kumar would like to pick this patch into his tree along with a patch set that adds "ranges = <>" properties to the device tree... So would you mind if we take it via powerpc.git? Thanks, drivers/net/gianfar_mii.c | 10 +++++++--- drivers/net/ucc_geth_mii.c | 10 +++++++--- 2 files changed, 14 insertions(+), 6 deletions(-)Andy merged these in net-next to just have drivers/net/fsl_pq_mdio.c. My suggestion is to update the patch against -next and have David put it into net-next. (I'll deal w/the .dts updates in powerpc.git and cherry pick commits out of net-next into my testing branching)
OK. David, I guess it's yours now. :-) Thanks. drivers/net/fsl_pq_mdio.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index 6be36b9..b3079a5 100644
--- a/drivers/net/fsl_pq_mdio.c
+++ b/drivers/net/fsl_pq_mdio.c@@ -194,11 +194,15 @@ static int *create_irq_map(struct device_node *np) void fsl_pq_mdio_bus_name(char *name, struct device_node *np) { - const u32 *reg; + const u32 *addr; + u64 taddr = OF_BAD_ADDR; - reg = of_get_property(np, "reg", NULL); + addr = of_get_address(np, 0, NULL, NULL); + if (addr) + taddr = of_translate_address(np, addr); - snprintf(name, MII_BUS_ID_SIZE, "%s@%x", np->name, reg ? *reg : 0); + snprintf(name, MII_BUS_ID_SIZE, "%s@%llx", np->name, + (unsigned long long)taddr); } /* Scan the bus in reverse, looking for an empty spot */
--
1.5.6.5