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barebox/board/freescale-mx35-3-stack/3stack.c

222 lines
6.0 KiB
C

/*
* Copyright (C) 2007 Sascha Hauer, Pengutronix
*
* 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 <common.h>
#include <net.h>
#include <cfi_flash.h>
#include <init.h>
#include <environment.h>
#include <asm/arch/imx-regs.h>
#include <fec.h>
#include <asm/arch/gpio.h>
#include <asm/armlinux.h>
#include <asm/mach-types.h>
#include <asm/arch/pmic.h>
#include <partition.h>
#include <fs.h>
#include <fcntl.h>
#include <nand.h>
#include <spi/spi.h>
#include <asm/io.h>
#include <asm/arch/imx-nand.h>
#include <asm/arch/iomux-mx35.h>
static struct device_d cfi_dev = {
.name = "cfi_flash",
.map_base = 0xa0000000,
.size = 64 * 1024 * 1024,
};
static struct memory_platform_data ram_pdata = {
.name = "ram0",
.flags = DEVFS_RDWR,
};
static struct device_d sdram_dev = {
.name = "mem",
.map_base = 0x80000000,
.size = 128 * 1024 * 1024,
.platform_data = &ram_pdata,
};
static struct fec_platform_data fec_info = {
.xcv_type = MII100,
};
static struct device_d fec_dev = {
.name = "fec_imx",
.map_base = 0x50038000,
.platform_data = &fec_info,
};
/*
* SMSC 9217 network controller
*/
static struct device_d smc911x_dev = {
.name = "smc911x",
.map_base = IMX_CS5_BASE,
.size = IMX_CS5_RANGE, /* area size */
};
static int f3s_devices_init(void)
{
register_device(&cfi_dev);
register_device(&sdram_dev);
register_device(&smc911x_dev);
/* FEC is currently broken. It seems to work
* shortly but after a few moments the board
* goes to nirvana
*/
// register_device(&fec_dev);
/*
* Create partitions that should be
* not touched by any regular user
*/
devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self0"); /* ourself */
devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0"); /* environment */
armlinux_add_dram(&sdram_dev);
armlinux_set_bootparams((void *)0x80000100);
armlinux_set_architecture(MACH_TYPE_PCM037); /* FIXME */
return 0;
}
device_initcall(f3s_devices_init);
static struct device_d f3s_serial_device = {
.name = "imx_serial",
.map_base = IMX_UART1_BASE,
.size = 4096,
};
static struct pad_desc f3s_pads[] = {
MX35_PAD_FEC_TX_CLK__FEC_TX_CLK,
MX35_PAD_FEC_RX_CLK__FEC_RX_CLK,
MX35_PAD_FEC_RX_DV__FEC_RX_DV,
MX35_PAD_FEC_COL__FEC_COL,
MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
MX35_PAD_FEC_TX_EN__FEC_TX_EN,
MX35_PAD_FEC_MDC__FEC_MDC,
MX35_PAD_FEC_MDIO__FEC_MDIO,
MX35_PAD_FEC_TX_ERR__FEC_TX_ERR,
MX35_PAD_FEC_RX_ERR__FEC_RX_ERR,
MX35_PAD_FEC_CRS__FEC_CRS,
MX35_PAD_FEC_RDATA0__FEC_RDATA_0,
MX35_PAD_FEC_TDATA0__FEC_TDATA_0,
MX35_PAD_FEC_RDATA1__FEC_RDATA_1,
MX35_PAD_FEC_TDATA1__FEC_TDATA_1,
MX35_PAD_FEC_RDATA2__FEC_RDATA_2,
MX35_PAD_FEC_TDATA2__FEC_TDATA_2,
MX35_PAD_FEC_RDATA3__FEC_RDATA_3,
MX35_PAD_FEC_TDATA3__FEC_TDATA_3,
MX35_PAD_RXD1__UART1_RXD_MUX,
MX35_PAD_TXD1__UART1_TXD_MUX,
MX35_PAD_RTS1__UART1_RTS,
MX35_PAD_CTS1__UART1_CTS,
};
static int f3s_console_init(void)
{
mxc_iomux_v3_setup_multiple_pads(f3s_pads, ARRAY_SIZE(f3s_pads));
register_device(&f3s_serial_device);
return 0;
}
console_initcall(f3s_console_init);
static int f3s_core_setup(void)
{
u32 tmp;
writel(0x0000D843, CSCR_U(5)); /* CS5: smc9117 */
writel(0x22252521, CSCR_L(5));
writel(0x22220A00, CSCR_A(5));
/* FIXME: The rest is currently done in Assembler. Remove assembler
* config once the board is running stable
*/
return 0;
/* AIPS setup - Only setup MPROTx registers. The PACR default values are good.*/
/*
* Set all MPROTx to be non-bufferable, trusted for R/W,
* not forced to user-mode.
*/
writel(0x77777777, IMX_AIPS1_BASE);
writel(0x77777777, IMX_AIPS1_BASE + 0x4);
writel(0x77777777, IMX_AIPS2_BASE);
writel(0x77777777, IMX_AIPS2_BASE + 0x4);
/*
* Clear the on and off peripheral modules Supervisor Protect bit
* for SDMA to access them. Did not change the AIPS control registers
* (offset 0x20) access type
*/
writel(0x0, IMX_AIPS1_BASE + 0x40);
writel(0x0, IMX_AIPS1_BASE + 0x44);
writel(0x0, IMX_AIPS1_BASE + 0x48);
writel(0x0, IMX_AIPS1_BASE + 0x4C);
tmp = readl(IMX_AIPS1_BASE + 0x50);
tmp &= 0x00FFFFFF;
writel(tmp, IMX_AIPS1_BASE + 0x50);
writel(0x0, IMX_AIPS2_BASE + 0x40);
writel(0x0, IMX_AIPS2_BASE + 0x44);
writel(0x0, IMX_AIPS2_BASE + 0x48);
writel(0x0, IMX_AIPS2_BASE + 0x4C);
tmp = readl(IMX_AIPS2_BASE + 0x50);
tmp &= 0x00FFFFFF;
writel(tmp, IMX_AIPS2_BASE + 0x50);
/* MAX (Multi-Layer AHB Crossbar Switch) setup */
/* MPR - priority is M4 > M2 > M3 > M5 > M0 > M1 */
#define MAX_PARAM1 0x00302154
writel(MAX_PARAM1, IMX_MAX_BASE + 0x0); /* for S0 */
writel(MAX_PARAM1, IMX_MAX_BASE + 0x100); /* for S1 */
writel(MAX_PARAM1, IMX_MAX_BASE + 0x200); /* for S2 */
writel(MAX_PARAM1, IMX_MAX_BASE + 0x300); /* for S3 */
writel(MAX_PARAM1, IMX_MAX_BASE + 0x400); /* for S4 */
/* SGPCR - always park on last master */
writel(0x10, IMX_MAX_BASE + 0x10); /* for S0 */
writel(0x10, IMX_MAX_BASE + 0x110); /* for S1 */
writel(0x10, IMX_MAX_BASE + 0x210); /* for S2 */
writel(0x10, IMX_MAX_BASE + 0x310); /* for S3 */
writel(0x10, IMX_MAX_BASE + 0x410); /* for S4 */
/* MGPCR - restore default values */
writel(0x0, IMX_MAX_BASE + 0x800); /* for M0 */
writel(0x0, IMX_MAX_BASE + 0x900); /* for M1 */
writel(0x0, IMX_MAX_BASE + 0xa00); /* for M2 */
writel(0x0, IMX_MAX_BASE + 0xb00); /* for M3 */
writel(0x0, IMX_MAX_BASE + 0xc00); /* for M4 */
writel(0x0, IMX_MAX_BASE + 0xd00); /* for M5 */
return 0;
}
core_initcall(f3s_core_setup);