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[PATCH] ppc32: add phy excluded features to ocp_func_emac_data 

This patch adds a field to struct ocp_func_emac_data that allows
platform-specific unsupported PHY features to be passed in to the ibm_emac
ethernet driver.

This patch also adds some logic for the Bamboo eval board to populate this
field based on the dip switches on the board.  This is a workaround for the
improperly biased RJ-45 sockets on the Rev.  0 Bamboo.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
hifive-unleashed-5.1
Matt Porter 2005-09-03 15:55:35 -07:00 committed by Linus Torvalds
parent 8e8fff0975
commit 2698ebcb43
2 changed files with 45 additions and 8 deletions
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52
arch/ppc/platforms/4xx/bamboo.c
View File

@ -123,33 +123,69 @@ bamboo_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
static void __init bamboo_set_emacdata(void)
{
unsigned char * selection1_base;
u8 * base_addr;
struct ocp_def *def;
struct ocp_func_emac_data *emacdata;
u8 selection1_val;
u8 val;
int mode;
u32 excluded = 0;
selection1_base = ioremap64(BAMBOO_FPGA_SELECTION1_REG_ADDR, 16);
selection1_val = readb(selection1_base);
iounmap((void *) selection1_base);
if (BAMBOO_SEL_MII(selection1_val))
base_addr = ioremap64(BAMBOO_FPGA_SELECTION1_REG_ADDR, 16);
val = readb(base_addr);
iounmap((void *) base_addr);
if (BAMBOO_SEL_MII(val))
mode = PHY_MODE_MII;
else if (BAMBOO_SEL_RMII(selection1_val))
else if (BAMBOO_SEL_RMII(val))
mode = PHY_MODE_RMII;
else
mode = PHY_MODE_SMII;
/* Set mac_addr and phy mode for each EMAC */
/*
* SW2 on the Bamboo is used for ethernet configuration and is accessed
* via the CONFIG2 register in the FPGA. If the ANEG pin is set,
* overwrite the supported features with the settings in SW2.
*
* This is used as a workaround for the improperly biased RJ-45 sockets
* on the Rev. 0 Bamboo. By default only 10baseT is functional.
* Removing inductors L17 and L18 from the board allows 100baseT, but
* disables 10baseT. The Rev. 1 has no such limitations.
*/
base_addr = ioremap64(BAMBOO_FPGA_CONFIG2_REG_ADDR, 8);
val = readb(base_addr);
iounmap((void *) base_addr);
if (!BAMBOO_AUTONEGOTIATE(val)) {
excluded |= SUPPORTED_Autoneg;
if (BAMBOO_FORCE_100Mbps(val)) {
excluded |= SUPPORTED_10baseT_Full;
excluded |= SUPPORTED_10baseT_Half;
if (BAMBOO_FULL_DUPLEX_EN(val))
excluded |= SUPPORTED_100baseT_Half;
else
excluded |= SUPPORTED_100baseT_Full;
} else {
excluded |= SUPPORTED_100baseT_Full;
excluded |= SUPPORTED_100baseT_Half;
if (BAMBOO_FULL_DUPLEX_EN(val))
excluded |= SUPPORTED_10baseT_Half;
else
excluded |= SUPPORTED_10baseT_Full;
}
}
/* Set mac_addr, phy mode and unsupported phy features for each EMAC */
def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 0);
emacdata = def->additions;
memcpy(emacdata->mac_addr, __res.bi_enetaddr, 6);
emacdata->phy_mode = mode;
emacdata->phy_feat_exc = excluded;
def = ocp_get_one_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC, 1);
emacdata = def->additions;
memcpy(emacdata->mac_addr, __res.bi_enet1addr, 6);
emacdata->phy_mode = mode;
emacdata->phy_feat_exc = excluded;
}
static int

1
include/asm-ppc/ibm_ocp.h
View File

@ -67,6 +67,7 @@ struct ocp_func_emac_data {
int phy_mode; /* PHY type or configurable mode */
u8 mac_addr[6]; /* EMAC mac address */
u32 phy_map; /* EMAC phy map */
u32 phy_feat_exc; /* Excluded PHY features */
};
/* Sysfs support */