Tegra30: Add AVP (arm720t) files
This provides SPL support for T30 boards - AVP early init, plus
CPU (A9) init/jump to main U-Boot.
Some changes were made to Tegra20 cpu.c to move common routines
into tegra-common/cpu.c and reduce code duplication.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/cpu/arm720t/tegra-common/cpu.h b/arch/arm/cpu/arm720t/tegra-common/cpu.h
index 6804cd7..3e2ea3a 100644
--- a/arch/arm/cpu/arm720t/tegra-common/cpu.h
+++ b/arch/arm/cpu/arm720t/tegra-common/cpu.h
@@ -26,7 +26,11 @@
#define PLL_STABILIZATION_DELAY (300)
#define IO_STABILIZATION_DELAY (1000)
+#if defined(CONFIG_TEGRA30)
+#define NVBL_PLLP_KHZ (408000)
+#else /* Tegra20 */
#define NVBL_PLLP_KHZ (216000)
+#endif
#define PLLX_ENABLED (1 << 30)
#define CCLK_BURST_POLICY 0x20008888
@@ -44,50 +48,11 @@
#define CORESIGHT_UNLOCK 0xC5ACCE55;
-/* AP20-Specific Base Addresses */
-
-/* AP20 Base physical address of SDRAM. */
-#define AP20_BASE_PA_SDRAM 0x00000000
-/* AP20 Base physical address of internal SRAM. */
-#define AP20_BASE_PA_SRAM 0x40000000
-/* AP20 Size of internal SRAM (256KB). */
-#define AP20_BASE_PA_SRAM_SIZE 0x00040000
-/* AP20 Base physical address of flash. */
-#define AP20_BASE_PA_NOR_FLASH 0xD0000000
-/* AP20 Base physical address of boot information table. */
-#define AP20_BASE_PA_BOOT_INFO AP20_BASE_PA_SRAM
-
-/*
- * Super-temporary stacks for EXTREMELY early startup. The values chosen for
- * these addresses must be valid on ALL SOCs because this value is used before
- * we are able to differentiate between the SOC types.
- *
- * NOTE: The since CPU's stack will eventually be moved from IRAM to SDRAM, its
- * stack is placed below the AVP stack. Once the CPU stack has been moved,
- * the AVP is free to use the IRAM the CPU stack previously occupied if
- * it should need to do so.
- *
- * NOTE: In multi-processor CPU complex configurations, each processor will have
- * its own stack of size CPU_EARLY_BOOT_STACK_SIZE. CPU 0 will have a
- * limit of CPU_EARLY_BOOT_STACK_LIMIT. Each successive CPU will have a
- * stack limit that is CPU_EARLY_BOOT_STACK_SIZE less then the previous
- * CPU.
- */
-
-/* Common AVP early boot stack limit */
-#define AVP_EARLY_BOOT_STACK_LIMIT \
- (AP20_BASE_PA_SRAM + (AP20_BASE_PA_SRAM_SIZE/2))
-/* Common AVP early boot stack size */
-#define AVP_EARLY_BOOT_STACK_SIZE 0x1000
-/* Common CPU early boot stack limit */
-#define CPU_EARLY_BOOT_STACK_LIMIT \
- (AVP_EARLY_BOOT_STACK_LIMIT - AVP_EARLY_BOOT_STACK_SIZE)
-/* Common CPU early boot stack size */
-#define CPU_EARLY_BOOT_STACK_SIZE 0x1000
-
#define EXCEP_VECTOR_CPU_RESET_VECTOR (NV_PA_EVP_BASE + 0x100)
#define CSITE_CPU_DBG0_LAR (NV_PA_CSITE_BASE + 0x10FB0)
#define CSITE_CPU_DBG1_LAR (NV_PA_CSITE_BASE + 0x12FB0)
+#define CSITE_CPU_DBG2_LAR (NV_PA_CSITE_BASE + 0x14FB0)
+#define CSITE_CPU_DBG3_LAR (NV_PA_CSITE_BASE + 0x16FB0)
#define FLOW_CTLR_HALT_COP_EVENTS (NV_PA_FLOW_BASE + 4)
#define FLOW_MODE_STOP 2
@@ -95,6 +60,23 @@
#define HALT_COP_EVENT_IRQ_1 (1 << 11)
#define HALT_COP_EVENT_FIQ_1 (1 << 9)
-void start_cpu(u32 reset_vector);
-int ap20_cpu_is_cortexa9(void);
+#define FLOW_MODE_NONE 0
+
+#define SIMPLE_PLLX (CLOCK_ID_XCPU - CLOCK_ID_FIRST_SIMPLE)
+
+struct clk_pll_table {
+ u16 n;
+ u16 m;
+ u8 p;
+ u8 cpcon;
+};
+
+void clock_enable_coresight(int enable);
+void enable_cpu_clock(int enable);
void halt_avp(void) __attribute__ ((noreturn));
+void init_pllx(void);
+void powerup_cpu(void);
+void reset_A9_cpu(int reset);
+void start_cpu(u32 reset_vector);
+int tegra_get_chip_type(void);
+void adjust_pllp_out_freqs(void);