[RFC PATCH V2 1/6] ARM: initial Tegra support
Antony Pavlov
antonynpavlov at gmail.com
Fri Oct 28 09:24:08 EDT 2011
Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
---
arch/arm/Kconfig | 6 +
arch/arm/Makefile | 1 +
arch/arm/mach-tegra/Kconfig | 7 +
arch/arm/mach-tegra/Makefile | 2 +
arch/arm/mach-tegra/clock.c | 59 ++++++
arch/arm/mach-tegra/include/mach/debug_ll.h | 44 ++++
arch/arm/mach-tegra/include/mach/iomap.h | 292 +++++++++++++++++++++++++++
arch/arm/mach-tegra/reset.c | 43 ++++
8 files changed, 454 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/mach-tegra/Kconfig
create mode 100644 arch/arm/mach-tegra/Makefile
create mode 100644 arch/arm/mach-tegra/clock.c
create mode 100644 arch/arm/mach-tegra/include/mach/debug_ll.h
create mode 100644 arch/arm/mach-tegra/include/mach/iomap.h
create mode 100644 arch/arm/mach-tegra/reset.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b15728e..3eda360 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -71,6 +71,11 @@ config ARCH_VERSATILE
bool "ARM Versatile boards (ARM926EJ-S)"
select CPU_ARM926T
+config ARCH_TEGRA
+ bool "Nvidia Tegra-based boards"
+ select CPU_ARM926T
+ select HAS_DEBUG_LL
+
endchoice
source arch/arm/cpu/Kconfig
@@ -83,6 +88,7 @@ source arch/arm/mach-nomadik/Kconfig
source arch/arm/mach-omap/Kconfig
source arch/arm/mach-s3c24xx/Kconfig
source arch/arm/mach-versatile/Kconfig
+source arch/arm/mach-tegra/Kconfig
config ARM_ASM_UNIFIED
bool
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 0c42f3d..78a8a44 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -52,6 +52,7 @@ machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_OMAP) := omap
machine-$(CONFIG_ARCH_S3C24xx) := s3c24xx
machine-$(CONFIG_ARCH_VERSATILE) := versatile
+machine-$(CONFIG_ARCH_TEGRA) := tegra
# Board directory name. This list is sorted alphanumerically
# by CONFIG_* macro name.
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
new file mode 100644
index 0000000..b0cc3cd
--- /dev/null
+++ b/arch/arm/mach-tegra/Kconfig
@@ -0,0 +1,7 @@
+if ARCH_TEGRA
+
+config ARCH_TEXT_BASE
+ hex
+ default 0x31fc0000
+
+endif
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
new file mode 100644
index 0000000..11915e5
--- /dev/null
+++ b/arch/arm/mach-tegra/Makefile
@@ -0,0 +1,2 @@
+obj-y += clock.o
+obj-y += reset.o
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
new file mode 100644
index 0000000..9c8b29c
--- /dev/null
+++ b/arch/arm/mach-tegra/clock.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief Clocksource based on Tegra internal timer
+ */
+
+#include <common.h>
+#include <clock.h>
+#include <linux/list.h>
+#include <linux/clk.h>
+#include <init.h>
+#include <asm/io.h>
+#include <mach/iomap.h>
+
+static void __iomem *timer_reg_base = (void __iomem *) (TEGRA_TMR1_BASE);
+
+#define timer_writel(value, reg) \
+ __raw_writel(value, (u32)timer_reg_base + (reg))
+#define timer_readl(reg) \
+ __raw_readl((u32)timer_reg_base + (reg))
+
+static uint64_t tegra_clocksource_read(void)
+{
+ return timer_readl(0x10);
+}
+
+static struct clocksource cs = {
+ .read = tegra_clocksource_read,
+ .mask = 0xffffffff,
+};
+
+/* FIXME: here we have no initialization. All initialization made by U-Boot */
+static int clocksource_init(void)
+{
+ cs.mult = clocksource_hz2mult(1000000, cs.shift);
+ init_clock(&cs);
+
+ return 0;
+}
+core_initcall(clocksource_init);
diff --git a/arch/arm/mach-tegra/include/mach/debug_ll.h b/arch/arm/mach-tegra/include/mach/debug_ll.h
new file mode 100644
index 0000000..37602da
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/debug_ll.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/** @file
+ * This File contains declaration for early output support
+ */
+#ifndef __INCLUDE_ARCH_DEBUG_LL_H__
+#define __INCLUDE_ARCH_DEBUG_LL_H__
+
+#include <asm/io.h>
+#include <mach/iomap.h>
+
+#define DEBUG_LL_UART_ADDR TEGRA_UARTA_BASE
+#define DEBUG_LL_UART_RSHFT 2
+
+#define rbr (0 << DEBUG_LL_UART_RSHFT)
+#define lsr (5 << DEBUG_LL_UART_RSHFT)
+#define LSR_THRE 0x20 /* Xmit holding register empty */
+
+static __inline__ void putc(char ch)
+{
+ __raw_writeb(ch, DEBUG_LL_UART_ADDR + rbr);
+
+ while (!(__raw_readb(DEBUG_LL_UART_ADDR + lsr) & LSR_THRE));
+}
+
+#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */
diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h
new file mode 100644
index 0000000..ba478e7
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/iomap.h
@@ -0,0 +1,292 @@
+/*
+ * arch/arm/mach-tegra/include/mach/iomap.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * Author:
+ * Colin Cross <ccross at google.com>
+ * Erik Gilling <konkers at google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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.
+ *
+ */
+
+#ifndef __MACH_TEGRA_IOMAP_H
+#define __MACH_TEGRA_IOMAP_H
+
+#include <sizes.h>
+
+#define TEGRA_IRAM_BASE 0x40000000
+#define TEGRA_IRAM_SIZE SZ_256K
+
+#define TEGRA_HOST1X_BASE 0x50000000
+#define TEGRA_HOST1X_SIZE 0x24000
+
+#define TEGRA_ARM_PERIF_BASE 0x50040000
+#define TEGRA_ARM_PERIF_SIZE SZ_8K
+
+#define TEGRA_ARM_PL310_BASE 0x50043000
+#define TEGRA_ARM_PL310_SIZE SZ_4K
+
+#define TEGRA_ARM_INT_DIST_BASE 0x50041000
+#define TEGRA_ARM_INT_DIST_SIZE SZ_4K
+
+#define TEGRA_MPE_BASE 0x54040000
+#define TEGRA_MPE_SIZE SZ_256K
+
+#define TEGRA_VI_BASE 0x54080000
+#define TEGRA_VI_SIZE SZ_256K
+
+#define TEGRA_ISP_BASE 0x54100000
+#define TEGRA_ISP_SIZE SZ_256K
+
+#define TEGRA_DISPLAY_BASE 0x54200000
+#define TEGRA_DISPLAY_SIZE SZ_256K
+
+#define TEGRA_DISPLAY2_BASE 0x54240000
+#define TEGRA_DISPLAY2_SIZE SZ_256K
+
+#define TEGRA_HDMI_BASE 0x54280000
+#define TEGRA_HDMI_SIZE SZ_256K
+
+#define TEGRA_GART_BASE 0x58000000
+#define TEGRA_GART_SIZE SZ_32M
+
+#define TEGRA_RES_SEMA_BASE 0x60001000
+#define TEGRA_RES_SEMA_SIZE SZ_4K
+
+#define TEGRA_HDMI_BASE 0x54280000
+#define TEGRA_HDMI_SIZE SZ_256K
+
+#define TEGRA_GART_BASE 0x58000000
+#define TEGRA_GART_SIZE SZ_32M
+
+#define TEGRA_RES_SEMA_BASE 0x60001000
+#define TEGRA_RES_SEMA_SIZE SZ_4K
+
+#define TEGRA_ARB_SEMA_BASE 0x60002000
+#define TEGRA_ARB_SEMA_SIZE SZ_4K
+
+#define TEGRA_PRIMARY_ICTLR_BASE 0x60004000
+#define TEGRA_PRIMARY_ICTLR_SIZE 64
+
+#define TEGRA_ARBGNT_ICTLR_BASE 0x60004040
+#define TEGRA_ARBGNT_ICTLR_SIZE 192
+
+#define TEGRA_SECONDARY_ICTLR_BASE 0x60004100
+#define TEGRA_SECONDARY_ICTLR_SIZE 64
+
+#define TEGRA_TERTIARY_ICTLR_BASE 0x60004200
+#define TEGRA_TERTIARY_ICTLR_SIZE 64
+
+#define TEGRA_QUATERNARY_ICTLR_BASE 0x60004300
+#define TEGRA_QUATERNARY_ICTLR_SIZE 64
+
+#define TEGRA_TMR1_BASE 0x60005000
+#define TEGRA_TMR1_SIZE 8
+
+#define TEGRA_TMR2_BASE 0x60005008
+#define TEGRA_TMR2_SIZE 8
+
+#define TEGRA_TMRUS_BASE 0x60005010
+#define TEGRA_TMRUS_SIZE 64
+
+#define TEGRA_TMR3_BASE 0x60005050
+#define TEGRA_TMR3_SIZE 8
+
+#define TEGRA_TMR4_BASE 0x60005058
+#define TEGRA_TMR4_SIZE 8
+
+#define TEGRA_CLK_RESET_BASE 0x60006000
+#define TEGRA_CLK_RESET_SIZE SZ_4K
+
+#define TEGRA_FLOW_CTRL_BASE 0x60007000
+#define TEGRA_FLOW_CTRL_SIZE 20
+
+#define TEGRA_AHB_DMA_BASE 0x60008000
+#define TEGRA_AHB_DMA_SIZE SZ_4K
+
+#define TEGRA_AHB_DMA_CH0_BASE 0x60009000
+#define TEGRA_AHB_DMA_CH0_SIZE 32
+
+#define TEGRA_APB_DMA_BASE 0x6000A000
+#define TEGRA_APB_DMA_SIZE SZ_4K
+
+#define TEGRA_APB_DMA_CH0_BASE 0x6000B000
+#define TEGRA_APB_DMA_CH0_SIZE 32
+
+#define TEGRA_AHB_GIZMO_BASE 0x6000C004
+#define TEGRA_AHB_GIZMO_SIZE 0x10C
+
+#define TEGRA_STATMON_BASE 0x6000C400
+#define TEGRA_STATMON_SIZE SZ_1K
+
+#define TEGRA_GPIO_BASE 0x6000D000
+#define TEGRA_GPIO_SIZE SZ_4K
+
+#define TEGRA_EXCEPTION_VECTORS_BASE 0x6000F000
+#define TEGRA_EXCEPTION_VECTORS_SIZE SZ_4K
+
+#define TEGRA_VDE_BASE 0x6001A000
+#define TEGRA_VDE_SIZE (SZ_8K + SZ_4K - SZ_256)
+
+#define TEGRA_APB_MISC_BASE 0x70000000
+#define TEGRA_APB_MISC_SIZE SZ_4K
+
+#define TEGRA_APB_MISC_DAS_BASE 0x70000c00
+#define TEGRA_APB_MISC_DAS_SIZE SZ_128
+
+#define TEGRA_AC97_BASE 0x70002000
+#define TEGRA_AC97_SIZE SZ_512
+
+#define TEGRA_SPDIF_BASE 0x70002400
+#define TEGRA_SPDIF_SIZE SZ_512
+
+#define TEGRA_I2S1_BASE 0x70002800
+#define TEGRA_I2S1_SIZE SZ_256
+
+#define TEGRA_I2S2_BASE 0x70002A00
+#define TEGRA_I2S2_SIZE SZ_256
+
+#define TEGRA_UARTA_BASE 0x70006000
+#define TEGRA_UARTA_SIZE 64
+
+#define TEGRA_UARTB_BASE 0x70006040
+#define TEGRA_UARTB_SIZE 64
+
+#define TEGRA_UARTC_BASE 0x70006200
+#define TEGRA_UARTC_SIZE SZ_256
+
+#define TEGRA_UARTD_BASE 0x70006300
+#define TEGRA_UARTD_SIZE SZ_256
+
+#define TEGRA_UARTE_BASE 0x70006400
+#define TEGRA_UARTE_SIZE SZ_256
+
+#define TEGRA_NAND_BASE 0x70008000
+#define TEGRA_NAND_SIZE SZ_256
+
+#define TEGRA_HSMMC_BASE 0x70008500
+#define TEGRA_HSMMC_SIZE SZ_256
+
+#define TEGRA_SNOR_BASE 0x70009000
+#define TEGRA_SNOR_SIZE SZ_4K
+
+#define TEGRA_PWFM_BASE 0x7000A000
+#define TEGRA_PWFM_SIZE SZ_256
+
+#define TEGRA_PWFM0_BASE 0x7000A000
+#define TEGRA_PWFM0_SIZE 4
+
+#define TEGRA_PWFM1_BASE 0x7000A010
+#define TEGRA_PWFM1_SIZE 4
+
+#define TEGRA_PWFM2_BASE 0x7000A020
+#define TEGRA_PWFM2_SIZE 4
+
+#define TEGRA_PWFM3_BASE 0x7000A030
+#define TEGRA_PWFM3_SIZE 4
+
+#define TEGRA_MIPI_BASE 0x7000B000
+#define TEGRA_MIPI_SIZE SZ_256
+
+#define TEGRA_I2C_BASE 0x7000C000
+#define TEGRA_I2C_SIZE SZ_256
+
+#define TEGRA_TWC_BASE 0x7000C100
+#define TEGRA_TWC_SIZE SZ_256
+
+#define TEGRA_SPI_BASE 0x7000C380
+#define TEGRA_SPI_SIZE 48
+
+#define TEGRA_I2C2_BASE 0x7000C400
+#define TEGRA_I2C2_SIZE SZ_256
+
+#define TEGRA_I2C3_BASE 0x7000C500
+#define TEGRA_I2C3_SIZE SZ_256
+
+#define TEGRA_OWR_BASE 0x7000C600
+#define TEGRA_OWR_SIZE 80
+
+#define TEGRA_DVC_BASE 0x7000D000
+#define TEGRA_DVC_SIZE SZ_512
+
+#define TEGRA_SPI1_BASE 0x7000D400
+#define TEGRA_SPI1_SIZE SZ_512
+
+#define TEGRA_SPI2_BASE 0x7000D600
+#define TEGRA_SPI2_SIZE SZ_512
+
+#define TEGRA_SPI3_BASE 0x7000D800
+#define TEGRA_SPI3_SIZE SZ_512
+
+#define TEGRA_SPI4_BASE 0x7000DA00
+#define TEGRA_SPI4_SIZE SZ_512
+
+#define TEGRA_RTC_BASE 0x7000E000
+#define TEGRA_RTC_SIZE SZ_256
+
+#define TEGRA_KBC_BASE 0x7000E200
+#define TEGRA_KBC_SIZE SZ_256
+
+#define TEGRA_PMC_BASE 0x7000E400
+#define TEGRA_PMC_SIZE SZ_256
+
+#define TEGRA_MC_BASE 0x7000F000
+#define TEGRA_MC_SIZE SZ_1K
+
+#define TEGRA_EMC_BASE 0x7000F400
+#define TEGRA_EMC_SIZE SZ_1K
+
+#define TEGRA_FUSE_BASE 0x7000F800
+#define TEGRA_FUSE_SIZE SZ_1K
+
+#define TEGRA_KFUSE_BASE 0x7000FC00
+#define TEGRA_KFUSE_SIZE SZ_1K
+
+#define TEGRA_CSITE_BASE 0x70040000
+#define TEGRA_CSITE_SIZE SZ_256K
+
+#define TEGRA_USB_BASE 0xC5000000
+#define TEGRA_USB_SIZE SZ_16K
+
+#define TEGRA_USB2_BASE 0xC5004000
+#define TEGRA_USB2_SIZE SZ_16K
+
+#define TEGRA_USB3_BASE 0xC5008000
+#define TEGRA_USB3_SIZE SZ_16K
+
+#define TEGRA_SDMMC1_BASE 0xC8000000
+#define TEGRA_SDMMC1_SIZE SZ_512
+
+#define TEGRA_SDMMC2_BASE 0xC8000200
+#define TEGRA_SDMMC2_SIZE SZ_512
+
+#define TEGRA_SDMMC3_BASE 0xC8000400
+#define TEGRA_SDMMC3_SIZE SZ_512
+
+#define TEGRA_SDMMC4_BASE 0xC8000600
+#define TEGRA_SDMMC4_SIZE SZ_512
+
+#if defined(CONFIG_TEGRA_DEBUG_UART_NONE)
+# define TEGRA_DEBUG_UART_BASE 0
+#elif defined(CONFIG_TEGRA_DEBUG_UARTA)
+# define TEGRA_DEBUG_UART_BASE TEGRA_UARTA_BASE
+#elif defined(CONFIG_TEGRA_DEBUG_UARTB)
+# define TEGRA_DEBUG_UART_BASE TEGRA_UARTB_BASE
+#elif defined(CONFIG_TEGRA_DEBUG_UARTC)
+# define TEGRA_DEBUG_UART_BASE TEGRA_UARTC_BASE
+#elif defined(CONFIG_TEGRA_DEBUG_UARTD)
+# define TEGRA_DEBUG_UART_BASE TEGRA_UARTD_BASE
+#elif defined(CONFIG_TEGRA_DEBUG_UARTE)
+# define TEGRA_DEBUG_UART_BASE TEGRA_UARTE_BASE
+#endif
+
+#endif
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c
new file mode 100644
index 0000000..acd5911
--- /dev/null
+++ b/arch/arm/mach-tegra/reset.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 Antony Pavlov <antonynpavlov at gmail.com>
+ *
+ * This file is part of barebox.
+ * 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 version 2
+ * as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/**
+ * @file
+ * @brief Resetting an malta board
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <mach/iomap.h>
+
+#define PRM_RSTCTRL TEGRA_PMC_BASE
+
+void __noreturn reset_cpu(ulong addr)
+{
+ int rstctrl;
+
+ rstctrl = __raw_readl((char *)PRM_RSTCTRL);
+ rstctrl |= 0x10;
+ __raw_writel(rstctrl, (char *)PRM_RSTCTRL);
+
+ while (1);
+ /*NOTREACHED*/
+}
+EXPORT_SYMBOL(reset_cpu);
--
1.7.7
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