diff options
| -rw-r--r-- | arch/arm/mach-mvebu/board-v7.c | 57 | ||||
| -rw-r--r-- | arch/arm/mach-mvebu/mvebu-soc-id.h | 3 |
2 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c index c8a90d992be2..bc0283f0dd88 100644 --- a/arch/arm/mach-mvebu/board-v7.c +++ b/arch/arm/mach-mvebu/board-v7.c @@ -113,10 +113,66 @@ static void __init i2c_quirk(void) return; } +#define A375_Z1_THERMAL_FIXUP_OFFSET 0xc + +static void __init thermal_quirk(void) +{ + struct device_node *np; + u32 dev, rev; + + if (mvebu_get_soc_id(&dev, &rev) && rev > ARMADA_375_Z1_REV) + return; + + for_each_compatible_node(np, NULL, "marvell,armada375-thermal") { + struct property *prop; + __be32 newval, *newprop, *oldprop; + int len; + + /* + * The register offset is at a wrong location. This quirk + * creates a new reg property as a clone of the previous + * one and corrects the offset. + */ + oldprop = (__be32 *)of_get_property(np, "reg", &len); + if (!oldprop) + continue; + + /* Create a duplicate of the 'reg' property */ + prop = kzalloc(sizeof(*prop), GFP_KERNEL); + prop->length = len; + prop->name = kstrdup("reg", GFP_KERNEL); + prop->value = kzalloc(len, GFP_KERNEL); + memcpy(prop->value, oldprop, len); + + /* Fixup the register offset of the second entry */ + oldprop += 2; + newprop = (__be32 *)prop->value + 2; + newval = cpu_to_be32(be32_to_cpu(*oldprop) - + A375_Z1_THERMAL_FIXUP_OFFSET); + *newprop = newval; + of_update_property(np, prop); + + /* + * The thermal controller needs some quirk too, so let's change + * the compatible string to reflect this. + */ + prop = kzalloc(sizeof(*prop), GFP_KERNEL); + prop->name = kstrdup("compatible", GFP_KERNEL); + prop->length = sizeof("marvell,armada375-z1-thermal"); + prop->value = kstrdup("marvell,armada375-z1-thermal", + GFP_KERNEL); + of_update_property(np, prop); + } + return; +} + static void __init mvebu_dt_init(void) { if (of_machine_is_compatible("plathome,openblocks-ax3-4")) i2c_quirk(); + if (of_machine_is_compatible("marvell,a375-db")) + thermal_quirk(); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } @@ -140,6 +196,7 @@ static const char * const armada_375_dt_compat[] = { DT_MACHINE_START(ARMADA_375_DT, "Marvell Armada 375 (Device Tree)") .init_time = mvebu_timer_and_clk_init, + .init_machine = mvebu_dt_init, .restart = mvebu_restart, .dt_compat = armada_375_dt_compat, MACHINE_END diff --git a/arch/arm/mach-mvebu/mvebu-soc-id.h b/arch/arm/mach-mvebu/mvebu-soc-id.h index 31654252fe35..294a443f56fc 100644 --- a/arch/arm/mach-mvebu/mvebu-soc-id.h +++ b/arch/arm/mach-mvebu/mvebu-soc-id.h @@ -20,6 +20,9 @@ #define MV78XX0_A0_REV 0x1 #define MV78XX0_B0_REV 0x2 +/* Armada 375 */ +#define ARMADA_375_Z1_REV 0x0 + #ifdef CONFIG_ARCH_MVEBU int mvebu_get_soc_id(u32 *dev, u32 *rev); #else |