From 3064f322783241f83b8e25b5acdd97a0d898a970 Mon Sep 17 00:00:00 2001 From: Tom Warren Date: Wed, 19 Sep 2012 14:08:52 -0700 Subject: Tegra20: Move some code files to common directories for upcoming Tegra30 patches. Move files that are going to be common between T20 and T30 into 'tegra-common' subdirs in AVP (arm720t), CPU (armv7), and shared (arch/arm/cpu/.) areas. Any files that are left behind in '/tegra20' will be copied to '/tegra30' subdirs and modified for that SoC. The 'common' files should need only minor changes. Include files (arch/arm/include/asm/arch-tegra/tegra20) will be done in a follow-on patch. Builds fine w/MAKEALL -s tegra20. Checkpatch.pl is clean. Signed-off-by: Tom Warren --- arch/arm/cpu/arm720t/tegra-common/Makefile | 47 ++++++++++ arch/arm/cpu/arm720t/tegra-common/board.h | 25 ++++++ arch/arm/cpu/arm720t/tegra-common/cpu.h | 100 ++++++++++++++++++++++ arch/arm/cpu/arm720t/tegra-common/spl.c | 133 +++++++++++++++++++++++++++++ 4 files changed, 305 insertions(+) create mode 100644 arch/arm/cpu/arm720t/tegra-common/Makefile create mode 100644 arch/arm/cpu/arm720t/tegra-common/board.h create mode 100644 arch/arm/cpu/arm720t/tegra-common/cpu.h create mode 100644 arch/arm/cpu/arm720t/tegra-common/spl.c (limited to 'arch/arm/cpu/arm720t/tegra-common') diff --git a/arch/arm/cpu/arm720t/tegra-common/Makefile b/arch/arm/cpu/arm720t/tegra-common/Makefile new file mode 100644 index 0000000000..febd2e301f --- /dev/null +++ b/arch/arm/cpu/arm720t/tegra-common/Makefile @@ -0,0 +1,47 @@ +# +# (C) Copyright 2010,2011 Nvidia Corporation. +# +# (C) Copyright 2000-2008 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)libtegra-common.o + +COBJS-$(CONFIG_SPL_BUILD) += spl.o + +SRCS := $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS-y)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/arm/cpu/arm720t/tegra-common/board.h b/arch/arm/cpu/arm720t/tegra-common/board.h new file mode 100644 index 0000000000..61b91c005f --- /dev/null +++ b/arch/arm/cpu/arm720t/tegra-common/board.h @@ -0,0 +1,25 @@ +/* + * (C) Copyright 2010-2011 + * NVIDIA Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +void board_init_uart_f(void); +void gpio_config_uart(void); diff --git a/arch/arm/cpu/arm720t/tegra-common/cpu.h b/arch/arm/cpu/arm720t/tegra-common/cpu.h new file mode 100644 index 0000000000..6804cd7a3d --- /dev/null +++ b/arch/arm/cpu/arm720t/tegra-common/cpu.h @@ -0,0 +1,100 @@ +/* + * (C) Copyright 2010-2011 + * NVIDIA Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include + +/* Stabilization delays, in usec */ +#define PLL_STABILIZATION_DELAY (300) +#define IO_STABILIZATION_DELAY (1000) + +#define NVBL_PLLP_KHZ (216000) + +#define PLLX_ENABLED (1 << 30) +#define CCLK_BURST_POLICY 0x20008888 +#define SUPER_CCLK_DIVIDER 0x80000000 + +/* Calculate clock fractional divider value from ref and target frequencies */ +#define CLK_DIVIDER(REF, FREQ) ((((REF) * 2) / FREQ) - 2) + +/* Calculate clock frequency value from reference and clock divider value */ +#define CLK_FREQUENCY(REF, REG) (((REF) * 2) / (REG + 2)) + +/* AVP/CPU ID */ +#define PG_UP_TAG_0_PID_CPU 0x55555555 /* CPU aka "a9" aka "mpcore" */ +#define PG_UP_TAG_0 0x0 + +#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 FLOW_CTLR_HALT_COP_EVENTS (NV_PA_FLOW_BASE + 4) +#define FLOW_MODE_STOP 2 +#define HALT_COP_EVENT_JTAG (1 << 28) +#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); +void halt_avp(void) __attribute__ ((noreturn)); diff --git a/arch/arm/cpu/arm720t/tegra-common/spl.c b/arch/arm/cpu/arm720t/tegra-common/spl.c new file mode 100644 index 0000000000..6c16dce299 --- /dev/null +++ b/arch/arm/cpu/arm720t/tegra-common/spl.c @@ -0,0 +1,133 @@ +/* + * (C) Copyright 2012 + * NVIDIA Inc, + * + * Allen Martin + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "board.h" +#include "cpu.h" + +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +/* Define global data structure pointer to it*/ +static gd_t gdata __attribute__ ((section(".data"))); +static bd_t bdata __attribute__ ((section(".data"))); + +inline void hang(void) +{ + puts("### ERROR ### Please RESET the board ###\n"); + for (;;) + ; +} + +void board_init_f(ulong dummy) +{ + board_init_uart_f(); + + /* Initialize periph GPIOs */ +#ifdef CONFIG_SPI_UART_SWITCH + gpio_early_init_uart(); +#else + gpio_config_uart(); +#endif + + /* + * We call relocate_code() with relocation target same as the + * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting + * skipped. Instead, only .bss initialization will happen. That's + * all we need + */ + debug(">>board_init_f()\n"); + relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); +} + +/* This requires UART clocks to be enabled */ +static void preloader_console_init(void) +{ + const char *u_boot_rev = U_BOOT_VERSION; + + gd = &gdata; + gd->bd = &bdata; + gd->flags |= GD_FLG_RELOC; + gd->baudrate = CONFIG_BAUDRATE; + + serial_init(); /* serial communications setup */ + + gd->have_console = 1; + + /* Avoid a second "U-Boot" coming from this string */ + u_boot_rev = &u_boot_rev[7]; + + printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, + U_BOOT_TIME); +} + +void board_init_r(gd_t *id, ulong dummy) +{ + struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE; + + /* enable JTAG */ + writel(0xC0, &pmt->pmt_cfg_ctl); + + debug(">>spl:board_init_r()\n"); + + mem_malloc_init(CONFIG_SYS_SPL_MALLOC_START, + CONFIG_SYS_SPL_MALLOC_SIZE); + +#ifdef CONFIG_SPL_BOARD_INIT + spl_board_init(); +#endif + + clock_early_init(); + serial_init(); + preloader_console_init(); + + start_cpu((u32)CONFIG_SYS_TEXT_BASE); + halt_avp(); + /* not reached */ +} + +int board_usb_init(const void *blob) +{ + return 0; +} -- cgit v1.2.1