diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/generic/patches-4.4/180-bcma-support-BCM53573-series-of-wireless-SoCs.patch | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/180-bcma-support-BCM53573-series-of-wireless-SoCs.patch b/target/linux/generic/patches-4.4/180-bcma-support-BCM53573-series-of-wireless-SoCs.patch new file mode 100644 index 0000000000..49e8e5d00e --- /dev/null +++ b/target/linux/generic/patches-4.4/180-bcma-support-BCM53573-series-of-wireless-SoCs.patch @@ -0,0 +1,104 @@ +From 78921f39c6495203bbbf4207c442c2b59f8f11c0 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com> +Date: Mon, 25 Jul 2016 18:03:17 +0200 +Subject: [PATCH] bcma: support BCM53573 series of wireless SoCs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM53573 seems to be the first series of Northstar family with wireless +on the chip. The base models are BCM53573-s (A0, A1) and there is also +BCM47189B0 which seems to be some small modification. + +The only problem with these chipsets seems to be watchdog. It's totally +unavailable on 53573A0 / 53573A1 and preferable PMU watchdog is broken +on 53573B0 / 53573B1. + +Signed-off-by: Rafał Miłecki <zajec5@gmail.com> +--- + drivers/bcma/driver_chipcommon.c | 32 +++++++++++++++++++++++++++++--- + include/linux/bcma/bcma.h | 3 +++ + 2 files changed, 32 insertions(+), 3 deletions(-) + +--- a/drivers/bcma/driver_chipcommon.c ++++ b/drivers/bcma/driver_chipcommon.c +@@ -36,12 +36,31 @@ u32 bcma_chipco_get_alp_clock(struct bcm + } + EXPORT_SYMBOL_GPL(bcma_chipco_get_alp_clock); + ++static bool bcma_core_cc_has_pmu_watchdog(struct bcma_drv_cc *cc) ++{ ++ struct bcma_bus *bus = cc->core->bus; ++ ++ if (cc->capabilities & BCMA_CC_CAP_PMU) { ++ if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53573) { ++ WARN(bus->chipinfo.rev <= 1, "No watchdog available\n"); ++ /* 53573B0 and 53573B1 have bugged PMU watchdog. It can ++ * be enabled but timer can't be bumped. Use CC one ++ * instead. ++ */ ++ return false; ++ } ++ return true; ++ } else { ++ return false; ++ } ++} ++ + static u32 bcma_chipco_watchdog_get_max_timer(struct bcma_drv_cc *cc) + { + struct bcma_bus *bus = cc->core->bus; + u32 nb; + +- if (cc->capabilities & BCMA_CC_CAP_PMU) { ++ if (bcma_core_cc_has_pmu_watchdog(cc)) { + if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) + nb = 32; + else if (cc->core->id.rev < 26) +@@ -95,9 +114,16 @@ static int bcma_chipco_watchdog_ticks_pe + + int bcma_chipco_watchdog_register(struct bcma_drv_cc *cc) + { ++ struct bcma_bus *bus = cc->core->bus; + struct bcm47xx_wdt wdt = {}; + struct platform_device *pdev; + ++ if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53573 && ++ bus->chipinfo.rev <= 1) { ++ pr_debug("No watchdog on 53573A0 / 53573A1\n"); ++ return 0; ++ } ++ + wdt.driver_data = cc; + wdt.timer_set = bcma_chipco_watchdog_timer_set_wdt; + wdt.timer_set_ms = bcma_chipco_watchdog_timer_set_ms_wdt; +@@ -105,7 +131,7 @@ int bcma_chipco_watchdog_register(struct + bcma_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms; + + pdev = platform_device_register_data(NULL, "bcm47xx-wdt", +- cc->core->bus->num, &wdt, ++ bus->num, &wdt, + sizeof(wdt)); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); +@@ -217,7 +243,7 @@ u32 bcma_chipco_watchdog_timer_set(struc + u32 maxt; + + maxt = bcma_chipco_watchdog_get_max_timer(cc); +- if (cc->capabilities & BCMA_CC_CAP_PMU) { ++ if (bcma_core_cc_has_pmu_watchdog(cc)) { + if (ticks == 1) + ticks = 2; + else if (ticks > maxt) +--- a/include/linux/bcma/bcma.h ++++ b/include/linux/bcma/bcma.h +@@ -203,6 +203,9 @@ struct bcma_host_ops { + #define BCMA_PKG_ID_BCM4709 0 + #define BCMA_CHIP_ID_BCM47094 53030 + #define BCMA_CHIP_ID_BCM53018 53018 ++#define BCMA_CHIP_ID_BCM53573 53573 ++#define BCMA_PKG_ID_BCM53573 0 ++#define BCMA_PKG_ID_BCM47189 1 + + /* Board types (on PCI usually equals to the subsystem dev id) */ + /* BCM4313 */ |