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arm: add Nomadik 8815 SoC support 

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Andrea GALLO <andrea.gallo@stericsson.com>
Cc: Gael SALLES <gael.salles@stericsson.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Jean-Christophe PLAGNIOL-VILLARD 2010-08-04 03:43:57 +02:00 committed by Sascha Hauer
parent 907d7cb909
commit 7bb277f370
15 changed files with 487 additions and 0 deletions
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7
arch/arm/Kconfig
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@ -47,6 +47,12 @@ config ARCH_NETX
bool "Hilscher NetX based"
select CPU_ARM926T
config ARCH_NOMADIK
bool "STMicroelectronics Nomadik"
select CPU_ARM926T
help
Support for the Nomadik platform by ST-Ericsson
config ARCH_OMAP
bool "TI OMAP"
@ -63,6 +69,7 @@ source arch/arm/mach-at91rm9200/Kconfig
source arch/arm/mach-ep93xx/Kconfig
source arch/arm/mach-imx/Kconfig
source arch/arm/mach-netx/Kconfig
source arch/arm/mach-nomadik/Kconfig
source arch/arm/mach-omap/Kconfig
source arch/arm/mach-s3c24xx/Kconfig

1
arch/arm/Makefile
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@ -42,6 +42,7 @@ machine-$(CONFIG_ARCH_AT91) := at91
machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200
machine-$(CONFIG_ARCH_EP93XX) := ep93xx
machine-$(CONFIG_ARCH_IMX) := imx
machine-$(CONFIG_ARCH_NOMADIK) := nomadik
machine-$(CONFIG_ARCH_NETX) := netx
machine-$(CONFIG_ARCH_OMAP) := omap
machine-$(CONFIG_ARCH_S3C24xx) := s3c24xx

76
arch/arm/mach-nomadik/8815.c Normal file
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@ -0,0 +1,76 @@
/*
* Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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 of
* the License.
*
* 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 <common.h>
#include <init.h>
#include <asm/hardware.h>
#include <mach/hardware.h>
#include <asm/armlinux.h>
#include <asm/mach-types.h>
#include "clock.h"
static struct clk st8815_clk_48 = {
.rate = 48 * 1000 * 1000,
};
static struct memory_platform_data ram_pdata = {
.name = "ram0",
.flags = DEVFS_RDWR,
};
static struct device_d sdram_dev = {
.name = "mem",
.map_base = 0x00000000,
.platform_data = &ram_pdata,
};
void st8815_add_device_sdram(u32 size)
{
sdram_dev.size = size;
register_device(&sdram_dev);
armlinux_add_dram(&sdram_dev);
}
static struct device_d uart0_serial_device = {
.name = "uart-pl011",
.map_base = NOMADIK_UART0_BASE,
.size = 4096,
};
static struct device_d uart1_serial_device = {
.name = "uart-pl011",
.map_base = NOMADIK_UART1_BASE,
.size = 4096,
};
void st8815_register_uart(unsigned id)
{
switch (id) {
case 0:
nmdk_clk_create(&st8815_clk_48, uart0_serial_device.name);
register_device(&uart0_serial_device);
break;
case 1:
nmdk_clk_create(&st8815_clk_48, uart1_serial_device.name);
register_device(&uart1_serial_device);
break;
}
}

11
arch/arm/mach-nomadik/Kconfig Normal file
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@ -0,0 +1,11 @@
if ARCH_NOMADIK
choice
prompt "Nomadik boards"
endchoice
config NOMADIK_8815
bool
endif

3
arch/arm/mach-nomadik/Makefile Normal file
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@ -0,0 +1,3 @@
obj-y += clock.o reset.o timer.o
obj-y += 8815.o

52
arch/arm/mach-nomadik/clock.c Normal file
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@ -0,0 +1,52 @@
/*
* linux/arch/arm/mach-nomadik/clock.c
*
* Copyright (C) 2009 Alessandro Rubini
*/
#include <common.h>
#include <errno.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <init.h>
#include <asm/clkdev.h>
#include "clock.h"
/*
* The nomadik board uses generic clocks, but the serial pl011 file
* calls clk_enable(), clk_disable(), clk_get_rate(), so we provide them
*/
unsigned long clk_get_rate(struct clk *clk)
{
return clk->rate;
}
EXPORT_SYMBOL(clk_get_rate);
/* enable and disable do nothing */
int clk_enable(struct clk *clk)
{
return 0;
}
EXPORT_SYMBOL(clk_enable);
void clk_disable(struct clk *clk)
{
}
EXPORT_SYMBOL(clk_disable);
int __clk_get(struct clk *clk)
{
return 1;
}
/* Create a clock structure with the given name */
int nmdk_clk_create(struct clk *clk, const char *dev_id)
{
struct clk_lookup *clkdev;
clkdev = clkdev_alloc(clk, NULL, dev_id);
if (!clkdev)
return -ENOMEM;
clkdev_add(clkdev);
return 0;
}

14
arch/arm/mach-nomadik/clock.h Normal file
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@ -0,0 +1,14 @@
/*
* linux/arch/arm/mach-nomadik/clock.h
*
* Copyright (C) 2009 Alessandro Rubini
*
* 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.
*/
struct clk {
unsigned long rate;
};
int nmdk_clk_create(struct clk *clk, const char *dev_id);

28
arch/arm/mach-nomadik/include/mach/board.h Normal file
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@ -0,0 +1,28 @@
/*
* Copyright (C) 2009 Jean-Christophe PLAGNIOL-VILLARD <plagnio@jcrosoft.com>
*
* 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 of
* the License.
*
* 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 __ASM_ARCH_BOARD_H
#define __ASM_ARCH_BOARD_H
void st8815_add_device_sdram(u32 size);
void st8815_register_uart(unsigned id);
#endif

7
arch/arm/mach-nomadik/include/mach/clkdev.h Normal file
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@ -0,0 +1,7 @@
#ifndef __ASM_MACH_CLKDEV_H
#define __ASM_MACH_CLKDEV_H
#define __clk_get(clk) ({ 1; })
#define __clk_put(clk) do { } while (0)
#endif

28
arch/arm/mach-nomadik/include/mach/fsmc.h Normal file
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@ -0,0 +1,28 @@
/* Definitions for the Nomadik FSMC "Flexible Static Memory controller" */
#ifndef __ASM_ARCH_FSMC_H
#define __ASM_ARCH_FSMC_H
#include <mach/hardware.h>
/*
* Register list
*/
/* bus control reg. and bus timing reg. for CS0..CS3 */
#define FSMC_BCR(x) (NOMADIK_FSMC_VA + (x << 3))
#define FSMC_BTR(x) (NOMADIK_FSMC_VA + (x << 3) + 0x04)
/* PC-card and NAND:
* PCR = control register
* PMEM = memory timing
* PATT = attribute timing
* PIO = I/O timing
* PECCR = ECC result
*/
#define FSMC_PCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x00)
#define FSMC_PMEM(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x08)
#define FSMC_PATT(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x0c)
#define FSMC_PIO(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x10)
#define FSMC_PECCR(x) (NOMADIK_FSMC_VA + ((2 + x) << 5) + 0x14)
#endif /* __ASM_ARCH_FSMC_H */

91
arch/arm/mach-nomadik/include/mach/hardware.h Normal file
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@ -0,0 +1,91 @@
/*
* This file contains the hardware definitions of the Nomadik.
*
* 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 __ASM_ARCH_HARDWARE_H
#define __ASM_ARCH_HARDWARE_H
/* Nomadik registers live from 0x1000.0000 to 0x1023.0000 -- currently */
#define NOMADIK_IO_VIRTUAL 0xF0000000 /* VA of IO */
#define NOMADIK_IO_PHYSICAL 0x10000000 /* PA of IO */
#define NOMADIK_IO_SIZE 0x00300000 /* 3MB for all regs */
#ifndef CONFIG_MMU
#define io_p2v(x) (x)
#define io_v2p(x) (x)
#else
#define io_p2v(x) ((x) - NOMADIK_IO_PHYSICAL + NOMADIK_IO_VIRTUAL)
#define io_v2p(x) ((x) - NOMADIK_IO_VIRTUAL + NOMADIK_IO_PHYSICAL)
#endif
#define IO_ADDRESS(x) (io_p2v(x)) /* used in asm and more */
/*
* Base address defination for Nomadik Onchip Logic Block
*/
#define NOMADIK_FSMC_BASE 0x10100000 /* FSMC registers */
#define NOMADIK_SDRAMC_BASE 0x10110000 /* SDRAM Controller */
#define NOMADIK_CLCDC_BASE 0x10120000 /* CLCD Controller */
#define NOMADIK_MDIF_BASE 0x10120000 /* MDIF */
#define NOMADIK_DMA0_BASE 0x10130000 /* DMA0 Controller */
#define NOMADIK_IC_BASE 0x10140000 /* Vectored Irq Controller */
#define NOMADIK_DMA1_BASE 0x10150000 /* DMA1 Controller */
#define NOMADIK_USB_BASE 0x10170000 /* USB-OTG conf reg base */
#define NOMADIK_CRYP_BASE 0x10180000 /* Crypto processor */
#define NOMADIK_SHA1_BASE 0x10190000 /* SHA-1 Processor */
#define NOMADIK_XTI_BASE 0x101A0000 /* XTI */
#define NOMADIK_RNG_BASE 0x101B0000 /* Random number generator */
#define NOMADIK_SRC_BASE 0x101E0000 /* SRC base */
#define NOMADIK_WDOG_BASE 0x101E1000 /* Watchdog */
#define NOMADIK_MTU0_BASE 0x101E2000 /* Multiple Timer 0 */
#define NOMADIK_MTU1_BASE 0x101E3000 /* Multiple Timer 1 */
#define NOMADIK_GPIO0_BASE 0x101E4000 /* GPIO0 */
#define NOMADIK_GPIO1_BASE 0x101E5000 /* GPIO1 */
#define NOMADIK_GPIO2_BASE 0x101E6000 /* GPIO2 */
#define NOMADIK_GPIO3_BASE 0x101E7000 /* GPIO3 */
#define NOMADIK_RTC_BASE 0x101E8000 /* Real Time Clock base */
#define NOMADIK_PMU_BASE 0x101E9000 /* Power Management Unit */
#define NOMADIK_OWM_BASE 0x101EA000 /* One wire master */
#define NOMADIK_SCR_BASE 0x101EF000 /* Secure Control registers */
#define NOMADIK_MSP2_BASE 0x101F0000 /* MSP 2 interface */
#define NOMADIK_MSP1_BASE 0x101F1000 /* MSP 1 interface */
#define NOMADIK_UART2_BASE 0x101F2000 /* UART 2 interface */
#define NOMADIK_SSIRx_BASE 0x101F3000 /* SSI 8-ch rx interface */
#define NOMADIK_SSITx_BASE 0x101F4000 /* SSI 8-ch tx interface */
#define NOMADIK_MSHC_BASE 0x101F5000 /* Memory Stick(Pro) Host */
#define NOMADIK_SDI_BASE 0x101F6000 /* SD-card/MM-Card */
#define NOMADIK_I2C1_BASE 0x101F7000 /* I2C1 interface */
#define NOMADIK_I2C0_BASE 0x101F8000 /* I2C0 interface */
#define NOMADIK_MSP0_BASE 0x101F9000 /* MSP 0 interface */
#define NOMADIK_FIRDA_BASE 0x101FA000 /* FIrDA interface */
#define NOMADIK_UART1_BASE 0x101FB000 /* UART 1 interface */
#define NOMADIK_SSP_BASE 0x101FC000 /* SSP interface */
#define NOMADIK_UART0_BASE 0x101FD000 /* UART 0 interface */
#define NOMADIK_SGA_BASE 0x101FE000 /* SGA interface */
#define NOMADIK_L2CC_BASE 0x10210000 /* L2 Cache controller */
/* Other ranges, not for p2v/v2p */
#define NOMADIK_BACKUP_RAM 0x80010000
#define NOMADIK_EBROM 0x80000000 /* Embedded boot ROM */
#define NOMADIK_HAMACV_DMEM_BASE 0xA0100000 /* HAMACV Data Memory Start */
#define NOMADIK_HAMACV_DMEM_END 0xA01FFFFF /* HAMACV Data Memory End */
#define NOMADIK_HAMACA_DMEM 0xA0200000 /* HAMACA Data Memory Space */
#define NOMADIK_FSMC_VA IO_ADDRESS(NOMADIK_FSMC_BASE)
#define NOMADIK_MTU0_VA IO_ADDRESS(NOMADIK_MTU0_BASE)
#define NOMADIK_MTU1_VA IO_ADDRESS(NOMADIK_MTU1_BASE)
#endif /* __ASM_ARCH_HARDWARE_H */

46
arch/arm/mach-nomadik/include/mach/mtu.h Normal file
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@ -0,0 +1,46 @@
#ifndef __ASM_ARCH_MTU_H
#define __ASM_ARCH_MTU_H
/*
* The MTU device hosts four different counters, with 4 set of
* registers. These are register names.
*/
#define MTU_IMSC 0x00 /* Interrupt mask set/clear */
#define MTU_RIS 0x04 /* Raw interrupt status */
#define MTU_MIS 0x08 /* Masked interrupt status */
#define MTU_ICR 0x0C /* Interrupt clear register */
/* per-timer registers take 0..3 as argument */
#define MTU_LR(x) (0x10 + 0x10 * (x) + 0x00) /* Load value */
#define MTU_VAL(x) (0x10 + 0x10 * (x) + 0x04) /* Current value */
#define MTU_CR(x) (0x10 + 0x10 * (x) + 0x08) /* Control reg */
#define MTU_BGLR(x) (0x10 + 0x10 * (x) + 0x0c) /* At next overflow */
/* bits for the control register */
#define MTU_CRn_ENA 0x80
#define MTU_CRn_PERIODIC 0x40 /* if 0 = free-running */
#define MTU_CRn_PRESCALE_MASK 0x0c
#define MTU_CRn_PRESCALE_1 0x00
#define MTU_CRn_PRESCALE_16 0x04
#define MTU_CRn_PRESCALE_256 0x08
#define MTU_CRn_32BITS 0x02
#define MTU_CRn_ONESHOT 0x01 /* if 0 = wraps reloading from BGLR*/
/* Other registers are usual amba/primecell registers, currently not used */
#define MTU_ITCR 0xff0
#define MTU_ITOP 0xff4
#define MTU_PERIPH_ID0 0xfe0
#define MTU_PERIPH_ID1 0xfe4
#define MTU_PERIPH_ID2 0xfe8
#define MTU_PERIPH_ID3 0xfeC
#define MTU_PCELL0 0xff0
#define MTU_PCELL1 0xff4
#define MTU_PCELL2 0xff8
#define MTU_PCELL3 0xffC
#endif /* __ASM_ARCH_MTU_H */

6
arch/arm/mach-nomadik/include/mach/timex.h Normal file
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@ -0,0 +1,6 @@
#ifndef __ASM_ARCH_TIMEX_H
#define __ASM_ARCH_TIMEX_H
#define CLOCK_TICK_RATE 2400000
#endif

36
arch/arm/mach-nomadik/reset.c Normal file
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@ -0,0 +1,36 @@
/*
* mach-nomadik/include/mach/system.h
*
* Copyright (C) 2008 STMicroelectronics
*
* 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
*
* 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 <common.h>
#include <asm/io.h>
#include <mach/hardware.h>
void __noreturn reset_cpu(unsigned long addr)
{
void __iomem *src_rstsr = (void *)(NOMADIK_SRC_BASE + 0x18);
/* FIXME: use egpio when implemented */
/* Write anything to Reset status register */
writel(1, src_rstsr);
/* Not reached */
while (1);
}
EXPORT_SYMBOL(reset_cpu);

81
arch/arm/mach-nomadik/timer.c Normal file
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@ -0,0 +1,81 @@
/*
* linux/arch/arm/mach-nomadik/timer.c
*
* Copyright (C) 2008 STMicroelectronics
* Copyright (C) 2009 Alessandro Rubini, somewhat based on at91sam926x
*
* 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.
*/
#include <common.h>
#include <init.h>
#include <clock.h>
#include <asm/io.h>
#include <mach/hardware.h>
#include <mach/mtu.h>
#include <mach/timex.h>
/* Initial value for SRC control register: all timers use MXTAL/8 source */
#define SRC_CR_INIT_MASK 0x00007fff
#define SRC_CR_INIT_VAL 0x2aaa8000
static u32 nmdk_cycle; /* write-once */
static __iomem void *mtu_base;
/*
* clocksource: the MTU device is a decrementing counters, so we negate
* the value being read.
*/
static uint64_t nmdk_read_timer(void)
{
return nmdk_cycle - readl(mtu_base + MTU_VAL(0));
}
static struct clocksource nmdk_clksrc = {
.read = nmdk_read_timer,
.shift = 20,
.mask = 0xffffffff,
};
static void nmdk_timer_reset(void)
{
u32 cr;
writel(0, mtu_base + MTU_CR(0)); /* off */
/* configure load and background-load, and fire it up */
writel(nmdk_cycle, mtu_base + MTU_LR(0));
writel(nmdk_cycle, mtu_base + MTU_BGLR(0));
cr = MTU_CRn_PRESCALE_1 | MTU_CRn_32BITS;
writel(cr, mtu_base + MTU_CR(0));
writel(cr | MTU_CRn_ENA, mtu_base + MTU_CR(0));
}
static int nmdk_timer_init(void)
{
u32 src_cr;
unsigned long rate;
rate = CLOCK_TICK_RATE; /* 2.4MHz */
nmdk_cycle = (rate + 1000 / 2) / 1000;
/* Configure timer sources in "system reset controller" ctrl reg */
src_cr = readl(NOMADIK_SRC_BASE);
src_cr &= SRC_CR_INIT_MASK;
src_cr |= SRC_CR_INIT_VAL;
writel(src_cr, NOMADIK_SRC_BASE);
/* Save global pointer to mtu, used by functions above */
mtu_base = (void *)NOMADIK_MTU0_BASE;
/* Init the timer and register clocksource */
nmdk_timer_reset();
nmdk_clksrc.mult = clocksource_hz2mult(rate, nmdk_clksrc.shift);
init_clock(&nmdk_clksrc);
return 0;
}
core_initcall(nmdk_timer_init);