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Diffstat (limited to 'arch/arm/mach-highbank/highbank.c')
-rw-r--r--arch/arm/mach-highbank/highbank.c99
1 files changed, 76 insertions, 23 deletions
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8777612..e6c0612 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -15,6 +15,7 @@
*/
#include <linux/clk.h>
#include <linux/clkdev.h>
+#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -23,10 +24,12 @@
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/smp.h>
+#include <linux/amba/bus.h>
+#include <asm/arch_timer.h>
#include <asm/cacheflush.h>
+#include <asm/cputype.h>
#include <asm/smp_plat.h>
-#include <asm/smp_scu.h>
#include <asm/smp_twd.h>
#include <asm/hardware/arm_timer.h>
#include <asm/hardware/timer-sp.h>
@@ -40,16 +43,7 @@
#include "sysregs.h"
void __iomem *sregs_base;
-
-#define HB_SCU_VIRT_BASE 0xfee00000
-void __iomem *scu_base_addr = ((void __iomem *)(HB_SCU_VIRT_BASE));
-
-static struct map_desc scu_io_desc __initdata = {
- .virtual = HB_SCU_VIRT_BASE,
- .pfn = 0, /* run-time */
- .length = SZ_4K,
- .type = MT_DEVICE,
-};
+void __iomem *scu_base_addr;
static void __init highbank_scu_map_io(void)
{
@@ -58,14 +52,7 @@ static void __init highbank_scu_map_io(void)
/* Get SCU base */
asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (base));
- scu_io_desc.pfn = __phys_to_pfn(base);
- iotable_init(&scu_io_desc, 1);
-}
-
-static void __init highbank_map_io(void)
-{
- highbank_scu_map_io();
- highbank_lluart_map_io();
+ scu_base_addr = ioremap(base, SZ_4K);
}
#define HB_JUMP_TABLE_PHYS(cpu) (0x40 + (0x10 * (cpu)))
@@ -73,7 +60,7 @@ static void __init highbank_map_io(void)
void highbank_set_cpu_jump(int cpu, void *jump_addr)
{
- cpu = cpu_logical_map(cpu);
+ cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 0);
writel(virt_to_phys(jump_addr), HB_JUMP_TABLE_VIRT(cpu));
__cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),
@@ -81,6 +68,7 @@ void highbank_set_cpu_jump(int cpu, void *jump_addr)
}
const static struct of_device_id irq_match[] = {
+ { .compatible = "arm,cortex-a15-gic", .data = gic_of_init, },
{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
{}
};
@@ -97,6 +85,9 @@ static void __init highbank_init_irq(void)
{
of_irq_init(irq_match);
+ if (of_find_compatible_node(NULL, NULL, "arm,cortex-a9"))
+ highbank_scu_map_io();
+
#ifdef CONFIG_CACHE_L2X0
/* Enable PL310 L2 Cache controller */
highbank_smc1(0x102, 0x1);
@@ -105,6 +96,11 @@ static void __init highbank_init_irq(void)
#endif
}
+static struct clk_lookup lookup = {
+ .dev_id = "sp804",
+ .con_id = NULL,
+};
+
static void __init highbank_timer_init(void)
{
int irq;
@@ -122,11 +118,16 @@ static void __init highbank_timer_init(void)
irq = irq_of_parse_and_map(np, 0);
highbank_clocks_init();
+ lookup.clk = of_clk_get(np, 0);
+ clkdev_add(&lookup);
sp804_clocksource_and_sched_clock_init(timer_base + 0x20, "timer1");
sp804_clockevents_init(timer_base, irq, "timer0");
twd_local_timer_of_register();
+
+ arch_timer_of_register();
+ arch_timer_sched_clock_init();
}
static struct sys_timer highbank_timer = {
@@ -135,27 +136,79 @@ static struct sys_timer highbank_timer = {
static void highbank_power_off(void)
{
- hignbank_set_pwr_shutdown();
- scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
+ highbank_set_pwr_shutdown();
while (1)
cpu_do_idle();
}
+static int highbank_platform_notifier(struct notifier_block *nb,
+ unsigned long event, void *__dev)
+{
+ struct resource *res;
+ int reg = -1;
+ struct device *dev = __dev;
+
+ if (event != BUS_NOTIFY_ADD_DEVICE)
+ return NOTIFY_DONE;
+
+ if (of_device_is_compatible(dev->of_node, "calxeda,hb-ahci"))
+ reg = 0xc;
+ else if (of_device_is_compatible(dev->of_node, "calxeda,hb-sdhci"))
+ reg = 0x18;
+ else if (of_device_is_compatible(dev->of_node, "arm,pl330"))
+ reg = 0x20;
+ else if (of_device_is_compatible(dev->of_node, "calxeda,hb-xgmac")) {
+ res = platform_get_resource(to_platform_device(dev),
+ IORESOURCE_MEM, 0);
+ if (res) {
+ if (res->start == 0xfff50000)
+ reg = 0;
+ else if (res->start == 0xfff51000)
+ reg = 4;
+ }
+ }
+
+ if (reg < 0)
+ return NOTIFY_DONE;
+
+ if (of_property_read_bool(dev->of_node, "dma-coherent")) {
+ writel(0xff31, sregs_base + reg);
+ set_dma_ops(dev, &arm_coherent_dma_ops);
+ } else
+ writel(0, sregs_base + reg);
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block highbank_amba_nb = {
+ .notifier_call = highbank_platform_notifier,
+};
+
+static struct notifier_block highbank_platform_nb = {
+ .notifier_call = highbank_platform_notifier,
+};
+
static void __init highbank_init(void)
{
pm_power_off = highbank_power_off;
+ highbank_pm_init();
+
+ bus_register_notifier(&platform_bus_type, &highbank_platform_nb);
+ bus_register_notifier(&amba_bustype, &highbank_amba_nb);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}
static const char *highbank_match[] __initconst = {
"calxeda,highbank",
+ "calxeda,ecx-2000",
NULL,
};
DT_MACHINE_START(HIGHBANK, "Highbank")
- .map_io = highbank_map_io,
+ .smp = smp_ops(highbank_smp_ops),
+ .map_io = debug_ll_io_init,
.init_irq = highbank_init_irq,
.timer = &highbank_timer,
.handle_irq = gic_handle_irq,