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106 lines
3.6 KiB
106 lines
3.6 KiB
From 387b75f8b31437792e8334390fdf5cf060d1e3da Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
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Date: Tue, 2 Feb 2016 07:47:14 +0100
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Subject: [PATCH] bgmac: add helper checking for BCM4707 / BCM53018 chip id
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Chipsets with BCM4707 / BCM53018 ID require special handling at a few
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places in the code. It's likely there will be more IDs to check in the
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future. To simplify it add this trivial helper.
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Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/ethernet/broadcom/bgmac.c | 30 ++++++++++++++++--------------
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1 file changed, 16 insertions(+), 14 deletions(-)
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--- a/drivers/net/ethernet/broadcom/bgmac.c
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+++ b/drivers/net/ethernet/broadcom/bgmac.c
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@@ -26,6 +26,17 @@ static const struct bcma_device_id bgmac
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};
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MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
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+static inline bool bgmac_is_bcm4707_family(struct bgmac *bgmac)
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+{
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+ switch (bgmac->core->bus->chipinfo.id) {
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+ case BCMA_CHIP_ID_BCM4707:
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+ case BCMA_CHIP_ID_BCM53018:
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+ return true;
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+ default:
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+ return false;
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+ }
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+}
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+
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static bool bgmac_wait_value(struct bcma_device *core, u16 reg, u32 mask,
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u32 value, int timeout)
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{
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@@ -990,11 +1001,9 @@ static void bgmac_mac_speed(struct bgmac
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static void bgmac_miiconfig(struct bgmac *bgmac)
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{
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struct bcma_device *core = bgmac->core;
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- struct bcma_chipinfo *ci = &core->bus->chipinfo;
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u8 imode;
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- if (ci->id == BCMA_CHIP_ID_BCM4707 ||
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- ci->id == BCMA_CHIP_ID_BCM53018) {
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+ if (bgmac_is_bcm4707_family(bgmac)) {
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bcma_awrite32(core, BCMA_IOCTL,
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bcma_aread32(core, BCMA_IOCTL) | 0x40 |
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BGMAC_BCMA_IOCTL_SW_CLKEN);
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@@ -1058,9 +1067,7 @@ static void bgmac_chip_reset(struct bgma
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}
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/* Request Misc PLL for corerev > 2 */
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- if (core->id.rev > 2 &&
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- ci->id != BCMA_CHIP_ID_BCM4707 &&
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- ci->id != BCMA_CHIP_ID_BCM53018) {
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+ if (core->id.rev > 2 && !bgmac_is_bcm4707_family(bgmac)) {
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bgmac_set(bgmac, BCMA_CLKCTLST,
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BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ);
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bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
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@@ -1196,8 +1203,7 @@ static void bgmac_enable(struct bgmac *b
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break;
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}
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- if (ci->id != BCMA_CHIP_ID_BCM4707 &&
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- ci->id != BCMA_CHIP_ID_BCM53018) {
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+ if (!bgmac_is_bcm4707_family(bgmac)) {
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rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
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rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
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bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
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@@ -1475,14 +1481,12 @@ static int bgmac_fixed_phy_register(stru
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static int bgmac_mii_register(struct bgmac *bgmac)
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{
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- struct bcma_chipinfo *ci = &bgmac->core->bus->chipinfo;
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struct mii_bus *mii_bus;
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struct phy_device *phy_dev;
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char bus_id[MII_BUS_ID_SIZE + 3];
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int i, err = 0;
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- if (ci->id == BCMA_CHIP_ID_BCM4707 ||
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- ci->id == BCMA_CHIP_ID_BCM53018)
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+ if (bgmac_is_bcm4707_family(bgmac))
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return bgmac_fixed_phy_register(bgmac);
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mii_bus = mdiobus_alloc();
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@@ -1553,7 +1557,6 @@ static void bgmac_mii_unregister(struct
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/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
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static int bgmac_probe(struct bcma_device *core)
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{
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- struct bcma_chipinfo *ci = &core->bus->chipinfo;
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struct net_device *net_dev;
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struct bgmac *bgmac;
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struct ssb_sprom *sprom = &core->bus->sprom;
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@@ -1634,8 +1637,7 @@ static int bgmac_probe(struct bcma_devic
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bgmac_chip_reset(bgmac);
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/* For Northstar, we have to take all GMAC core out of reset */
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- if (ci->id == BCMA_CHIP_ID_BCM4707 ||
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- ci->id == BCMA_CHIP_ID_BCM53018) {
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+ if (bgmac_is_bcm4707_family(bgmac)) {
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struct bcma_device *ns_core;
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int ns_gmac;
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