brcm74xx: fix patch for BCM4706 CPUs
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@39250 3c298f89-4303-0410-b956-a3cf2f4a3e73master
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@ -1,3 +1,17 @@
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From fb143ba7f7cd215bc2fc34a478c4c0b6dc56e537 Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Mon, 6 Jan 2014 14:51:59 +0100
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Subject: [PATCH] MIPS: BCM47XX: fix position of cpu_wait disabling
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The disabling of cpu_wait was done too early, before the detection was
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done. This moves the code to a position where it actually works.
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Acked-by: Rafa? Mi?ecki <zajec5@gmail.com>
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---
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arch/mips/bcm47xx/setup.c | 34 +++++++++++++++++++++++++---------
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1 file changed, 25 insertions(+), 9 deletions(-)
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--- a/arch/mips/bcm47xx/setup.c
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--- a/arch/mips/bcm47xx/setup.c
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+++ b/arch/mips/bcm47xx/setup.c
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+++ b/arch/mips/bcm47xx/setup.c
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@@ -35,6 +35,7 @@
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@@ -35,6 +35,7 @@
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@ -8,18 +22,35 @@
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#include <bcm47xx.h>
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#include <bcm47xx.h>
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#include <bcm47xx_nvram.h>
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#include <bcm47xx_nvram.h>
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#include <bcm47xx_board.h>
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#include <bcm47xx_board.h>
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@@ -239,6 +240,14 @@ static int __init bcm47xx_register_bus_c
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@@ -229,6 +230,31 @@ void __init plat_mem_setup(void)
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#endif
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mips_set_machine_name(bcm47xx_board_get_name());
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#ifdef CONFIG_BCM47XX_BCMA
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}
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case BCM47XX_BUS_TYPE_BCMA:
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+static int __init bcm47xx_cpu_fixes(void)
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+{
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+ switch (bcm47xx_bus_type) {
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+#ifdef CONFIG_BCM47XX_SSB
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+ case BCM47XX_BUS_TYPE_SSB:
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+ /* Nothing to do */
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+ break;
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+#endif
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+#ifdef CONFIG_BCM47XX_BCMA
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+ case BCM47XX_BUS_TYPE_BCMA:
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+ /* The BCM4706 has a problem with the CPU wait instruction.
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+ /* The BCM4706 has a problem with the CPU wait instruction.
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+ * When r4k_wait or r4k_wait_irqoff is used will just hang and
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+ * When r4k_wait or r4k_wait_irqoff is used will just hang and
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+ * not return from a msleep(). Removing the cpu_wait
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+ * not return from a msleep(). Removing the cpu_wait
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+ * functionality is a workaround for this problem. The BCM4716
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+ * functionality is a workaround for this problem. The BCM4716
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+ * does not have this problem.
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+ * does not have this problem.
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+ */
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+ */
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+ if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
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+ if (bcm47xx_bus.bcma.bus.chipinfo.id == BCMA_CHIP_ID_BCM4706)
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+ cpu_wait = NULL;
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+ cpu_wait = NULL;
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bcma_bus_register(&bcm47xx_bus.bcma.bus);
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+ break;
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break;
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+#endif
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#endif
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+ }
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+ return 0;
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+}
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+arch_initcall(bcm47xx_cpu_fixes);
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+
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static int __init bcm47xx_register_bus_complete(void)
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{
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switch (bcm47xx_bus_type) {
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@ -30,9 +30,9 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb_embedded.h>
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#include <linux/ssb/ssb_embedded.h>
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#include <linux/bcma/bcma_soc.h>
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#include <linux/bcma/bcma_soc.h>
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@@ -230,6 +233,12 @@ void __init plat_mem_setup(void)
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@@ -255,6 +258,12 @@ static int __init bcm47xx_cpu_fixes(void
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mips_set_machine_name(bcm47xx_board_get_name());
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}
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}
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arch_initcall(bcm47xx_cpu_fixes);
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+static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
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+static struct fixed_phy_status bcm47xx_fixed_phy_status __initdata = {
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+ .link = 1,
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+ .link = 1,
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@ -43,7 +43,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
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static int __init bcm47xx_register_bus_complete(void)
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static int __init bcm47xx_register_bus_complete(void)
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{
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{
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switch (bcm47xx_bus_type) {
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switch (bcm47xx_bus_type) {
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@@ -252,6 +261,7 @@ static int __init bcm47xx_register_bus_c
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@@ -269,6 +278,7 @@ static int __init bcm47xx_register_bus_c
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break;
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break;
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#endif
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#endif
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}
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}
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@ -8,7 +8,7 @@
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#include <asm/bootinfo.h>
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#include <asm/bootinfo.h>
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#include <asm/prom.h>
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#include <asm/prom.h>
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#include <asm/reboot.h>
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#include <asm/reboot.h>
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@@ -239,6 +240,33 @@ static struct fixed_phy_status bcm47xx_f
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@@ -264,6 +265,33 @@ static struct fixed_phy_status bcm47xx_f
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.duplex = DUPLEX_FULL,
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.duplex = DUPLEX_FULL,
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};
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};
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@ -42,7 +42,7 @@
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static int __init bcm47xx_register_bus_complete(void)
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static int __init bcm47xx_register_bus_complete(void)
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{
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{
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switch (bcm47xx_bus_type) {
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switch (bcm47xx_bus_type) {
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@@ -262,6 +290,8 @@ static int __init bcm47xx_register_bus_c
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@@ -279,6 +307,8 @@ static int __init bcm47xx_register_bus_c
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#endif
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#endif
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}
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}
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fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
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fixed_phy_add(PHY_POLL, 0, &bcm47xx_fixed_phy_status);
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