From 5cd22bc53dcc36a2ccf420c2d08f47a750db29c9 Mon Sep 17 00:00:00 2001 From: hauke Date: Fri, 8 Aug 2014 23:05:24 +0000 Subject: [PATCH] brcm47xx: fix reboot problem on BCM4705/BCM4785 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This adds some code based on code from the Broadcom GPL tar to fix the reboot problems on BCM4705/BCM4785. I tried rebooting my device for ~10 times and have never seen a problem. This reverts the changes in the previous commit and adds the real fix as suggested by Rafał. Setting bit 22 in Reg 22, sel 4 puts the BIU (Bus Interface Unit) into async mode. backport of: r42083 Signed-off-by: Hauke Mehrtens git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42086 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- .../144-make-reboot-more-reliable.patch | 41 +++++++++++++++---- .../patches-3.10/170-fix-74k-cpu.patch | 2 +- ...xed-PHY-device-if-we-do-not-find-any.patch | 4 +- .../830-huawei_e970_support.patch | 4 +- .../980-wnr834b_no_cardbus_invariant.patch | 2 +- 5 files changed, 38 insertions(+), 15 deletions(-) diff --git a/target/linux/brcm47xx/patches-3.10/144-make-reboot-more-reliable.patch b/target/linux/brcm47xx/patches-3.10/144-make-reboot-more-reliable.patch index 036de1d..f1a343a 100644 --- a/target/linux/brcm47xx/patches-3.10/144-make-reboot-more-reliable.patch +++ b/target/linux/brcm47xx/patches-3.10/144-make-reboot-more-reliable.patch @@ -1,17 +1,40 @@ +From 26db431400c336c4cc658cb4888bab18d254c64a Mon Sep 17 00:00:00 2001 +From: Hauke Mehrtens +Date: Sat, 9 Aug 2014 00:00:09 +0200 +Subject: [PATCH] MIPS: BCM47XX: fix reboot problem on BCM4705/BCM4785 + +This adds some code based on code from the Broadcom GPL tar to fix the +reboot problems on BCM4705/BCM4785. I tried rebooting my device for ~10 +times and have never seen a problem. This reverts the changes in the +previous commit and adds the real fix as suggested by Rafał. + +Setting bit 22 in Reg 22, sel 4 puts the BIU (Bus Interface Unit) into +async mode. + +The previous try was this: +commit 316cad5c1d4daee998cd1f83ccdb437f6f20d45c +Author: Hauke Mehrtens +Date: Mon Jul 28 23:53:57 2014 +0200 + + MIPS: BCM47XX: make reboot more relaiable + +Signed-off-by: Hauke Mehrtens --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c -@@ -55,12 +55,12 @@ static void bcm47xx_machine_restart(char +@@ -55,7 +55,16 @@ static void bcm47xx_machine_restart(char switch (bcm47xx_bus_type) { #ifdef CONFIG_BCM47XX_SSB case BCM47XX_BUS_TYPE_SSB: -- ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1); -+ ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 3); ++ if (bcm47xx_bus.bcma.bus.chipinfo.id == 0x4785) ++ write_c0_diag4(1 << 22); + ssb_watchdog_timer_set(&bcm47xx_bus.ssb, 1); ++ if (bcm47xx_bus.bcma.bus.chipinfo.id == 0x4785) { ++ __asm__ __volatile__( ++ ".set\tmips3\n\t" ++ "sync\n\t" ++ "wait\n\t" ++ ".set\tmips0"); ++ } break; #endif #ifdef CONFIG_BCM47XX_BCMA - case BCM47XX_BUS_TYPE_BCMA: -- bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 1); -+ bcma_chipco_watchdog_timer_set(&bcm47xx_bus.bcma.bus.drv_cc, 3); - break; - #endif - } diff --git a/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch b/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch index 3e1543b..622ac29 100644 --- a/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch +++ b/target/linux/brcm47xx/patches-3.10/170-fix-74k-cpu.patch @@ -22,7 +22,7 @@ Acked-by: Rafa? Mi?ecki #include #include #include -@@ -231,6 +232,31 @@ void __init plat_mem_setup(void) +@@ -240,6 +241,31 @@ void __init plat_mem_setup(void) mips_set_machine_name(bcm47xx_board_get_name()); } diff --git a/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch b/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch index 94f9875..ee2f58e 100644 --- a/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch +++ b/target/linux/brcm47xx/patches-3.10/208-b44-use-fixed-PHY-device-if-we-do-not-find-any.patch @@ -30,7 +30,7 @@ Signed-off-by: David S. Miller #include #include #include -@@ -257,6 +260,12 @@ static int __init bcm47xx_cpu_fixes(void +@@ -266,6 +269,12 @@ static int __init bcm47xx_cpu_fixes(void } arch_initcall(bcm47xx_cpu_fixes); @@ -43,7 +43,7 @@ Signed-off-by: David S. Miller static int __init bcm47xx_register_bus_complete(void) { switch (bcm47xx_bus_type) { -@@ -275,6 +284,7 @@ static int __init bcm47xx_register_bus_c +@@ -284,6 +293,7 @@ static int __init bcm47xx_register_bus_c bcm47xx_buttons_register(); bcm47xx_leds_register(); bcm47xx_workarounds(); diff --git a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch index 7880ec8..20b8526 100644 --- a/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch +++ b/target/linux/brcm47xx/patches-3.10/830-huawei_e970_support.patch @@ -8,7 +8,7 @@ #include #include #include -@@ -266,6 +267,33 @@ static struct fixed_phy_status bcm47xx_f +@@ -275,6 +276,33 @@ static struct fixed_phy_status bcm47xx_f .duplex = DUPLEX_FULL, }; @@ -42,7 +42,7 @@ static int __init bcm47xx_register_bus_complete(void) { switch (bcm47xx_bus_type) { -@@ -285,6 +313,7 @@ static int __init bcm47xx_register_bus_c +@@ -294,6 +322,7 @@ static int __init bcm47xx_register_bus_c bcm47xx_leds_register(); bcm47xx_workarounds(); fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status); diff --git a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch index 650f02f..8bab5f0 100644 --- a/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch +++ b/target/linux/brcm47xx/patches-3.10/980-wnr834b_no_cardbus_invariant.patch @@ -1,6 +1,6 @@ --- a/arch/mips/bcm47xx/setup.c +++ b/arch/mips/bcm47xx/setup.c -@@ -127,6 +127,10 @@ static int bcm47xx_get_invariants(struct +@@ -136,6 +136,10 @@ static int bcm47xx_get_invariants(struct if (bcm47xx_nvram_getenv("cardbus", buf, sizeof(buf)) >= 0) iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);