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authorSimon Horman <horms+renesas@verge.net.au>2013-10-08 02:44:08 +0200
committerSimon Horman <horms+renesas@verge.net.au>2013-10-08 02:44:08 +0200
commit243b6db0588b1425cb020e764475e8e1c4eb40d9 (patch)
tree1bb07633eca6f0d80e954a99c9b00a1767bd1cd9 /arch/arm/mach-shmobile/board-lager.c
parentMerge tag 'renesas-smp-for-v3.13' into soc2-base (diff)
parentARM: shmobile: Remove #gpio-ranges-cells DT property (diff)
downloadlinux-243b6db0588b1425cb020e764475e8e1c4eb40d9.tar.xz
linux-243b6db0588b1425cb020e764475e8e1c4eb40d9.zip
Merge tag 'renesas-fixes4-for-v3.12' into soc2-base
Fourth Round of Renesas ARM based SoC fixes for v3.12 * Remove unused #gpio-ranges-cells DT property * Remove usage of deprecated #gpio-range-cells DT property from GPIO R-Car Property was deprecated in v3.11-rc2 * Correct ether pinctl naming for armadillo800eva board Regression introduced in v3.10-rc5 * Add Micrel KSZ8041 PHY fixup to lager board This resolves a problem that has been present since 3.11-rc2 * Update SDHI DT compatibility string to the <unit>-<soc> format This makes compatibility strings consistent across all renesas hardware which currently supports DT. The bindings which are being updated where intorodiced on a per-SoC basis starting in v3.8-rc7. They may have been internally consistent when originally added.
Diffstat (limited to 'arch/arm/mach-shmobile/board-lager.c')
-rw-r--r--arch/arm/mach-shmobile/board-lager.c27
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ef3baaa79e6d..6d1026e99e13 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -29,6 +29,7 @@
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/gpio-rcar.h>
#include <linux/platform_device.h>
+#include <linux/phy.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/sh_eth.h>
@@ -155,6 +156,30 @@ static void __init lager_add_standard_devices(void)
&ether_pdata, sizeof(ether_pdata));
}
+/*
+ * Ether LEDs on the Lager board are named LINK and ACTIVE which corresponds
+ * to non-default 01 setting of the Micrel KSZ8041 PHY control register 1 bits
+ * 14-15. We have to set them back to 01 from the default 00 value each time
+ * the PHY is reset. It's also important because the PHY's LED0 signal is
+ * connected to SoC's ETH_LINK signal and in the PHY's default mode it will
+ * bounce on and off after each packet, which we apparently want to avoid.
+ */
+static int lager_ksz8041_fixup(struct phy_device *phydev)
+{
+ u16 phyctrl1 = phy_read(phydev, 0x1e);
+
+ phyctrl1 &= ~0xc000;
+ phyctrl1 |= 0x4000;
+ return phy_write(phydev, 0x1e, phyctrl1);
+}
+
+static void __init lager_init(void)
+{
+ lager_add_standard_devices();
+
+ phy_register_fixup_for_id("r8a7790-ether-ff:01", lager_ksz8041_fixup);
+}
+
static const char *lager_boards_compat_dt[] __initdata = {
"renesas,lager",
NULL,
@@ -164,6 +189,6 @@ DT_MACHINE_START(LAGER_DT, "lager")
.smp = smp_ops(r8a7790_smp_ops),
.init_early = r8a7790_init_early,
.init_time = r8a7790_timer_init,
- .init_machine = lager_add_standard_devices,
+ .init_machine = lager_init,
.dt_compat = lager_boards_compat_dt,
MACHINE_END