@@ -93,8 +93,15 @@
#define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000
#define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000
+/* Secondary CPU polling address to get loader start from */
+#define EXYNOS4210_SECOND_CPU_BOOTREG 0x10020814
+
+/* Secondary CPU startup code is in IROM memory */
+#define EXYNOS4210_SMP_BOOT_ADDR EXYNOS4210_IROM_BASE_ADDR
+
static struct arm_boot_info exynos4210_binfo = {
.loader_start = EXYNOS4210_BASE_BOOT_ADDR,
+ .smp_loader_start = EXYNOS4210_SMP_BOOT_ADDR,
};
static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
@@ -208,6 +215,8 @@ static void exynos4210_init(ram_addr_t ram_size,
MemoryRegion *irom_alias_mem = g_new(MemoryRegion, 1);
MemoryRegion *dram0_mem = g_new(MemoryRegion, 1);
MemoryRegion *dram1_mem = NULL;
+ MemoryRegion *hack_mem = g_new(MemoryRegion, 1);
+ MemoryRegion *bootreg_mem = g_new(MemoryRegion, 1);
Exynos4210Irq *irqs;
qemu_irq *irq_table;
qemu_irq *irqp;
@@ -221,9 +230,11 @@ static void exynos4210_init(ram_addr_t ram_size,
switch (board_type) {
case BOARD_EXYNOS4210_NURI:
exynos4210_binfo.board_id = MACH_NURI_ID;
+ exynos4210_binfo.smp_bootreg_addr = EXYNOS4210_SECOND_CPU_BOOTREG;
break;
case BOARD_EXYNOS4210_SMDKC210:
exynos4210_binfo.board_id = MACH_SMDKC210_ID;
+ exynos4210_binfo.smp_bootreg_addr = EXYNOS4210_SECOND_CPU_BOOTREG;
break;
default:
break;
@@ -367,6 +378,20 @@ static void exynos4210_init(ram_addr_t ram_size,
memory_region_add_subregion(system_mem, EXYNOS4210_DRAM0_BASE_ADDR,
dram0_mem);
+ /*
+ * Secondary CPU startup code will be placed here.
+ */
+ memory_region_init_ram(hack_mem, NULL, "exynos4210.hack", 0x1000);
+ memory_region_add_subregion(system_mem, EXYNOS4210_SMP_BOOT_ADDR,
+ hack_mem);
+
+ /*
+ * Hack: Map SECOND_CPU_BOOTREG, because it is in PMU USER5 register.
+ */
+ memory_region_init_ram(bootreg_mem, NULL, "exynos4210.bootreg", 0x4);
+ memory_region_add_subregion(system_mem, EXYNOS4210_SECOND_CPU_BOOTREG,
+ bootreg_mem);
+
/* CMU */
sysbus_create_simple("exynos4210.cmu", EXYNOS4210_CMU_BASE_ADDR, NULL);
@@ -441,6 +466,7 @@ static void exynos4210_init(ram_addr_t ram_size,
exynos4210_binfo.kernel_filename = kernel_filename;
exynos4210_binfo.initrd_filename = initrd_filename;
exynos4210_binfo.kernel_cmdline = kernel_cmdline;
+ exynos4210_binfo.smp_priv_base = EXYNOS4210_SMP_PRIVATE_BASE_ADDR;
arm_load_kernel(first_cpu, &exynos4210_binfo);
}
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com> --- hw/exynos4210.c | 26 ++++++++++++++++++++++++++ 1 files changed, 26 insertions(+), 0 deletions(-)