[PATCH 2/3] ARM OMAP AM33XX: create new ARCH for AM33xx
Teresa Gámez
t.gamez at phytec.de
Thu Sep 20 10:02:03 EDT 2012
Created ARCH for AM33xx boards as second stage bootloader.
This includes:
- Added dmtimer0
- Created basic header files
- Added MMC support for ARCH_AM33XX
- Added reset function
Signed-off-by: Teresa Gámez <t.gamez at phytec.de>
---
arch/arm/mach-omap/Kconfig | 11 +++
arch/arm/mach-omap/Makefile | 2 +
arch/arm/mach-omap/am33xx_generic.c | 29 +++++++++
arch/arm/mach-omap/dmtimer0.c | 72 ++++++++++++++++++++++
arch/arm/mach-omap/gpio.c | 29 +++++----
arch/arm/mach-omap/include/mach/am33xx-clock.h | 25 ++++++++
arch/arm/mach-omap/include/mach/am33xx-silicon.h | 51 +++++++++++++++
arch/arm/mach-omap/include/mach/clocks.h | 7 ++
arch/arm/mach-omap/include/mach/omap3-clock.h | 3 -
arch/arm/mach-omap/include/mach/silicon.h | 3 +
arch/arm/mach-omap/include/mach/timers.h | 22 +++++++
drivers/mci/Kconfig | 2 +-
12 files changed, 238 insertions(+), 18 deletions(-)
create mode 100644 arch/arm/mach-omap/am33xx_generic.c
create mode 100644 arch/arm/mach-omap/dmtimer0.c
create mode 100644 arch/arm/mach-omap/include/mach/am33xx-clock.h
create mode 100644 arch/arm/mach-omap/include/mach/am33xx-silicon.h
diff --git a/arch/arm/mach-omap/Kconfig b/arch/arm/mach-omap/Kconfig
index d735284..b3f121f 100644
--- a/arch/arm/mach-omap/Kconfig
+++ b/arch/arm/mach-omap/Kconfig
@@ -50,6 +50,14 @@ config ARCH_OMAP4
help
Say Y here if you are using Texas Instrument's OMAP4 based platform
+config ARCH_AM33XX
+ bool "AM33xx"
+ select CPU_V7
+ select GENERIC_GPIO
+ select OMAP_CLOCK_SOURCE_DMTIMER0
+ help
+ Say Y here if you are using Texas Instrument's AM33xx based platform
+
endchoice
### Generic Clock configurations to be enabled by Mach - invisible to enable.
@@ -69,6 +77,9 @@ config OMAP_CLOCK_ALL
config OMAP_CLOCK_SOURCE_S32K
bool
+config OMAP_CLOCK_SOURCE_DMTIMER0
+ bool
+
config OMAP3_CLOCK_CONFIG
prompt "Clock Configuration"
bool
diff --git a/arch/arm/mach-omap/Makefile b/arch/arm/mach-omap/Makefile
index f087f4b..0f03043 100644
--- a/arch/arm/mach-omap/Makefile
+++ b/arch/arm/mach-omap/Makefile
@@ -22,10 +22,12 @@
obj-$(CONFIG_ARCH_OMAP) += syslib.o
pbl-$(CONFIG_ARCH_OMAP) += syslib.o
obj-$(CONFIG_OMAP_CLOCK_SOURCE_S32K) += s32k_clksource.o
+obj-$(CONFIG_OMAP_CLOCK_SOURCE_DMTIMER0) += dmtimer0.o
obj-$(CONFIG_ARCH_OMAP3) += omap3_core.o omap3_generic.o auxcr.o
pbl-$(CONFIG_ARCH_OMAP3) += omap3_core.o omap3_generic.o auxcr.o
obj-$(CONFIG_ARCH_OMAP4) += omap4_generic.o omap4_clock.o
pbl-$(CONFIG_ARCH_OMAP4) += omap4_generic.o omap4_clock.o
+obj-$(CONFIG_ARCH_AM33XX) += am33xx_generic.o
obj-$(CONFIG_OMAP3_CLOCK_CONFIG) += omap3_clock.o
obj-$(CONFIG_OMAP_GPMC) += gpmc.o devices-gpmc-nand.o
obj-$(CONFIG_SHELL_NONE) += xload.o
diff --git a/arch/arm/mach-omap/am33xx_generic.c b/arch/arm/mach-omap/am33xx_generic.c
new file mode 100644
index 0000000..ba08773
--- /dev/null
+++ b/arch/arm/mach-omap/am33xx_generic.c
@@ -0,0 +1,29 @@
+/*
+ * (C) Copyright 2012 Teresa Gámez, Phytec Messtechnik GmbH
+ *
+ * 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 <io.h>
+#include <mach/silicon.h>
+#include <mach/clocks.h>
+
+void __noreturn reset_cpu(unsigned long addr)
+{
+ writel(PRM_RSTCTRL_RESET, PRM_REG(RSTCTRL));
+
+ while (1);
+}
diff --git a/arch/arm/mach-omap/dmtimer0.c b/arch/arm/mach-omap/dmtimer0.c
new file mode 100644
index 0000000..b8ec43f
--- /dev/null
+++ b/arch/arm/mach-omap/dmtimer0.c
@@ -0,0 +1,72 @@
+/**
+ * @file
+ * @brief Support DMTimer0 counter
+ *
+ * FileName: arch/arm/mach-omap/dmtimer0.c
+ */
+/*
+ * This File is based on arch/arm/mach-omap/s32k_clksource.c
+ * (C) Copyright 2008
+ * Texas Instruments, <www.ti.com>
+ * Nishanth Menon <x0nishan at ti.com>
+ *
+ * (C) Copyright 2012 Teresa Gámez, Phytec Messtechnik GmbH
+ *
+ * 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 <clock.h>
+#include <init.h>
+#include <io.h>
+#include <mach/silicon.h>
+#include <mach/timers.h>
+
+#define CLK_RC32K 32768
+
+/**
+ * @brief Provide a simple counter read
+ *
+ * @return DMTimer0 counter
+ */
+static uint64_t dmtimer0_read(void)
+{
+ return readl(AM33XX_DMTIMER0_BASE + TCRR);
+}
+
+static struct clocksource dmtimer0_cs = {
+ .read = dmtimer0_read,
+ .mask = CLOCKSOURCE_MASK(32),
+ .shift = 10,
+};
+
+/**
+ * @brief Initialize the Clock
+ *
+ * Enable dmtimer0.
+ *
+ * @return result of @ref init_clock
+ */
+static int dmtimer0_init(void)
+{
+ dmtimer0_cs.mult = clocksource_hz2mult(CLK_RC32K, dmtimer0_cs.shift);
+ /* Enable counter */
+ writel(0x3, AM33XX_DMTIMER0_BASE + TCLR);
+
+ return init_clock(&dmtimer0_cs);
+}
+
+/* Run me at boot time */
+core_initcall(dmtimer0_init);
diff --git a/arch/arm/mach-omap/gpio.c b/arch/arm/mach-omap/gpio.c
index 142cf52..a908941 100644
--- a/arch/arm/mach-omap/gpio.c
+++ b/arch/arm/mach-omap/gpio.c
@@ -40,14 +40,13 @@
#include <io.h>
#include <errno.h>
-#ifdef CONFIG_ARCH_OMAP3
-
#define OMAP_GPIO_OE 0x0034
#define OMAP_GPIO_DATAIN 0x0038
#define OMAP_GPIO_DATAOUT 0x003c
#define OMAP_GPIO_CLEARDATAOUT 0x0090
#define OMAP_GPIO_SETDATAOUT 0x0094
+#ifdef CONFIG_ARCH_OMAP3
static void __iomem *gpio_bank[] = {
(void *)0x48310000,
(void *)0x49050000,
@@ -59,20 +58,22 @@ static void __iomem *gpio_bank[] = {
#endif
#ifdef CONFIG_ARCH_OMAP4
+static void __iomem *gpio_bank[] = {
+ (void *)0x4a310100,
+ (void *)0x48055100,
+ (void *)0x48057100,
+ (void *)0x48059100,
+ (void *)0x4805b100,
+ (void *)0x4805d100,
+};
+#endif
-#define OMAP_GPIO_OE 0x0134
-#define OMAP_GPIO_DATAIN 0x0138
-#define OMAP_GPIO_DATAOUT 0x013c
-#define OMAP_GPIO_CLEARDATAOUT 0x0190
-#define OMAP_GPIO_SETDATAOUT 0x0194
-
+#ifdef CONFIG_ARCH_AM33XX
static void __iomem *gpio_bank[] = {
- (void *)0x4a310000,
- (void *)0x48055000,
- (void *)0x48057000,
- (void *)0x48059000,
- (void *)0x4805b000,
- (void *)0x4805d000,
+ (void *)0x44e07100,
+ (void *)0x4804c100,
+ (void *)0x481ac100,
+ (void *)0x481ae100,
};
#endif
diff --git a/arch/arm/mach-omap/include/mach/am33xx-clock.h b/arch/arm/mach-omap/include/mach/am33xx-clock.h
new file mode 100644
index 0000000..654c104
--- /dev/null
+++ b/arch/arm/mach-omap/include/mach/am33xx-clock.h
@@ -0,0 +1,25 @@
+/*
+ * (C) Copyright 2012 Teresa Gámez, Phytec Messtechnik GmbH
+ *
+ * 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
+ */
+#ifndef _AM33XX_CLOCKS_H_
+#define _AM33XX_CLOCKS_H_
+
+/** PRM Clock Regs */
+#define PRM_RSTCTRL 0x0f00
+
+#endif /* endif _AM33XX_CLOCKS_H_ */
diff --git a/arch/arm/mach-omap/include/mach/am33xx-silicon.h b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
new file mode 100644
index 0000000..7b13991
--- /dev/null
+++ b/arch/arm/mach-omap/include/mach/am33xx-silicon.h
@@ -0,0 +1,51 @@
+/*
+ * This file contains the address info for various AM33XX modules.
+ *
+ * Copyright (C) 2012 Teresa Gámez <t.gamez at phytec.de>,
+ * Phytec Messtechnik GmbH
+ *
+ * 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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_AM33XX_H
+#define __ASM_ARCH_AM33XX_H
+
+/** AM335x Internal Bus Base addresses */
+#define AM33XX_L4_WKUP_BASE 0x44C00000
+#define AM33XX_L4_PER_BASE 0x48000000
+#define AM33XX_L4_FAST_BASE 0x4A000000
+
+/* UART */
+#define AM33XX_UART0_BASE (AM33XX_L4_WKUP_BASE + 0x209000)
+#define AM33XX_UART1_BASE (AM33XX_L4_PER_BASE + 0x22000)
+#define AM33XX_UART2_BASE (AM33XX_L4_PER_BASE + 0x24000)
+
+
+/* EMFI Registers */
+#define AM33XX_EMFI0_BASE 0x4C000000
+
+#define AM33XX_DRAM_ADDR_SPACE_START 0x80000000
+#define AM33XX_DRAM_ADDR_SPACE_END 0xC0000000
+
+/* GPMC */
+#define OMAP_GPMC_BASE 0x50000000
+
+/* MMC */
+#define AM33XX_MMCHS0_BASE (AM33XX_L4_PER_BASE + 0x60000)
+
+/* DTMTimer0 */
+#define AM33XX_DMTIMER0_BASE (AM33XX_L4_WKUP_BASE + 0x205000)
+
+/* PRM */
+#define OMAP_PRM_BASE (AM33XX_L4_WKUP_BASE + 0x200000)
+
+#define PRM_RSTCTRL_RESET 0x1
+
+#endif
diff --git a/arch/arm/mach-omap/include/mach/clocks.h b/arch/arm/mach-omap/include/mach/clocks.h
index 3efa057..70dc91f 100644
--- a/arch/arm/mach-omap/include/mach/clocks.h
+++ b/arch/arm/mach-omap/include/mach/clocks.h
@@ -41,6 +41,9 @@
#define S26M 26000000
#define S38_4M 38400000
+#define CM_REG(REGNAME) (OMAP_CM_BASE + CM_##REGNAME)
+#define PRM_REG(REGNAME) (OMAP_PRM_BASE + PRM_##REGNAME)
+
#ifdef CONFIG_ARCH_OMAP3
#include <mach/omap3-clock.h>
#endif
@@ -48,4 +51,8 @@
#include <mach/omap4-clock.h>
#endif
+#ifdef CONFIG_ARCH_AM33XX
+#include <mach/am33xx-clock.h>
+#endif
+
#endif /* __OMAP_CLOCKS_H_ */
diff --git a/arch/arm/mach-omap/include/mach/omap3-clock.h b/arch/arm/mach-omap/include/mach/omap3-clock.h
index 67f2673..8a73bff 100644
--- a/arch/arm/mach-omap/include/mach/omap3-clock.h
+++ b/arch/arm/mach-omap/include/mach/omap3-clock.h
@@ -31,8 +31,6 @@
#define _OMAP343X_CLOCKS_H_
/** CM Clock Regs Wrapper */
-#define CM_REG(REGNAME) (OMAP_CM_BASE + CM_##REGNAME)
-
#define CM_FCLKEN_IVA2 0X0000
#define CM_CLKEN_PLL_IVA2 0X0004
#define CM_IDLEST_PLL_IVA2 0X0024
@@ -81,7 +79,6 @@
#define CM_CLKSTCTRL_USBH 0x1448
/** PRM Clock Regs */
-#define PRM_REG(REGNAME) (OMAP_PRM_BASE + PRM_##REGNAME)
#define PRM_CLKSEL 0x0D40
#define PRM_RSTCTRL 0x1250
#define PRM_CLKSRC_CTRL 0x1270
diff --git a/arch/arm/mach-omap/include/mach/silicon.h b/arch/arm/mach-omap/include/mach/silicon.h
index 638d6c4..6c085dc 100644
--- a/arch/arm/mach-omap/include/mach/silicon.h
+++ b/arch/arm/mach-omap/include/mach/silicon.h
@@ -28,6 +28,9 @@
#ifdef CONFIG_ARCH_OMAP4
#include <mach/omap4-silicon.h>
#endif
+#ifdef CONFIG_ARCH_AM33XX
+#include <mach/am33xx-silicon.h>
+#endif
/* If Architecture specific init functions are present */
#ifndef __ASSEMBLY__
diff --git a/arch/arm/mach-omap/include/mach/timers.h b/arch/arm/mach-omap/include/mach/timers.h
index a938243..c987fbc 100644
--- a/arch/arm/mach-omap/include/mach/timers.h
+++ b/arch/arm/mach-omap/include/mach/timers.h
@@ -34,6 +34,7 @@
#ifndef __ASM_ARCH_GPT_H
#define __ASM_ARCH_GPT_H
+#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
/** General Purpose timer regs offsets (32 bit regs) */
#define TIDR 0x0 /* r */
#define TIOCP_CFG 0x10 /* rw */
@@ -56,5 +57,26 @@
/** Sync 32Khz Timer registers */
#define S32K_CR (OMAP_32KTIMER_BASE + 0x10)
#define S32K_FREQUENCY 32768
+#endif
+
+#if defined(CONFIG_ARCH_AM33XX)
+#define TIDR 0x0
+#define TIOCP_CFG 0x10
+#define IRQ_EOI 0x20
+#define IRQSTATUS_RAW 0x24
+#define IRQSTATUS 0x28
+#define IRQSTATUS_SET 0x2c
+#define IRQSTATUS_CLR 0x30
+#define IRQWAKEEN 0x34
+#define TCLR 0x38
+#define TCRR 0x3C
+#define TLDR 0x40
+#define TTGR 0x44
+#define TWPS 0x48
+#define TMAR 0x4C
+#define TCAR1 0x50
+#define TSICR 0x54
+#define TCAR2 0x58
+#endif
#endif /*__ASM_ARCH_GPT_H */
diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig
index b1a678e..fb95c1e 100644
--- a/drivers/mci/Kconfig
+++ b/drivers/mci/Kconfig
@@ -67,7 +67,7 @@ config MCI_IMX_ESDHC_PIO
config MCI_OMAP_HSMMC
bool "OMAP HSMMC"
- depends on ARCH_OMAP4 || ARCH_OMAP3
+ depends on ARCH_OMAP4 || ARCH_OMAP3 || ARCH_AM33XX
help
Enable this entry to add support to read and write SD cards on
both OMAP3 and OMAP4 based systems.
--
1.7.0.4
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