/*
* Copyright (C) 2007 Sascha Hauer, Pengutronix
* 2009 Marc Kleine-Budde, 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
*
* Derived from:
*
* * mx35_3stack.c - board file for u-boot-v1
* Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
* (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
*
*/
#include <common.h>
#include <cfi_flash.h>
#include <environment.h>
#include <errno.h>
#include <fcntl.h>
#include <fec.h>
#include <fs.h>
#include <init.h>
#include <nand.h>
#include <net.h>
#include <partition.h>
#include <asm/armlinux.h>
#include <asm/io.h>
#include <asm/mach-types.h>
#include <mach/gpio.h>
#include <mach/imx-nand.h>
#include <mach/imx-regs.h>
#include <mach/iomux-mx35.h>
#include <mach/iomux-v3.h>
#include <mach/pmic.h>
#include <i2c/i2c.h>
#include <i2c/mc13892.h>
#include <i2c/mc9sdz60.h>
static struct device_d cfi_dev = {
.name = "cfi_flash",
.map_base = IMX_CS0_BASE,
.size = 64 * 1024 * 1024,
};
static struct fec_platform_data fec_info = {
.xcv_type = MII100,
.phy_addr = 0x1F,
};
static struct device_d fec_dev = {
.name = "fec_imx",
.map_base = IMX_FEC_BASE,
.platform_data = &fec_info,
};
static struct memory_platform_data sdram_pdata = {
.name = "ram0",
.flags = DEVFS_RDWR,
};
static struct device_d sdram_dev = {
.name = "mem",
.map_base = IMX_SDRAM_CS0,
.size = 128 * 1024 * 1024,
.platform_data = &sdram_pdata,
};
struct imx_nand_platform_data nand_info = {
.hw_ecc = 1,
.flash_bbt = 1,
};
static struct device_d nand_dev = {
.name = "imx_nand",
.map_base = IMX_NFC_BASE,
.platform_data = &nand_info,
};
static struct device_d smc911x_dev = {
.name = "smc911x",
.map_base = IMX_CS5_BASE,
.size = IMX_CS5_RANGE,
};
static struct i2c_board_info i2c_devices[] = {
{
I2C_BOARD_INFO("mc13892", 0x08),
},
{
I2C_BOARD_INFO("mc9sdz60", 0x69),
},
};
static struct device_d i2c_dev = {
.name = "i2c-imx",
.map_base = IMX_I2C1_BASE,
};
static int f3s_devices_init(void)
{
uint32_t reg;
/* CS0: Nor Flash */
writel(0x0000cf03, CSCR_U(0));
writel(0x10000d03, CSCR_L(0));
writel(0x00720900, CSCR_A(0));
reg = readl(IMX_CCM_BASE + CCM_RCSR);
/* some fuses provide us vital information about connected hardware */
if (reg & 0x20000000)
nand_info.width = 2; /* bit */
else
nand_info.width = 1; /* 8 bit */
/*
* This platform supports NOR and NAND
*/
register_device(&nand_dev);
register_device(&cfi_dev);
if ((reg & 0xc00) == 0x800) { /* reset mode: external boot */
switch ( (reg >> 25) & 0x3) {
case 0x01: /* NAND is the source */
devfs_add_partition("nand0", 0x00000, 0x40000, PARTITION_FIXED, "self_raw");
dev_add_bb_dev("self_raw", "self0");
devfs_add_partition("nand0", 0x40000, 0x20000, PARTITION_FIXED, "env_raw");
dev_add_bb_dev("env_raw", "env0");
break;
case 0x00: /* NOR is the source */
devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self0");
devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0");
protect_file("/dev/env0", 1);
break;
}
}
i2c_register_board_info(0, i2c_devices, ARRAY_SIZE(i2c_devices));
register_device(&i2c_dev);
register_device(&fec_dev);
register_device(&smc911x_dev);
register_device(&sdram_dev);
armlinux_add_dram(&sdram_dev);
armlinux_set_bootparams((void *)0x80000100);
armlinux_set_architecture(MACH_TYPE_MX35_3DS);
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,
MX35_PAD_I2C1_CLK__I2C1_SCL,
MX35_PAD_I2C1_DAT__I2C1_SDA,
MX35_PAD_WDOG_RST__GPIO1_6,
};
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_init(void)
{
u32 reg;
writel(0x0000D843, CSCR_U(5)); /* CS5: smc9117 */
writel(0x22252521, CSCR_L(5));
writel(0x22220A00, CSCR_A(5));
/* enable clock for I2C1 and FEC */
reg = readl(IMX_CCM_BASE + CCM_CGR1);
reg |= 0x3 << CCM_CGR1_FEC_SHIFT;
reg |= 0x3 << CCM_CGR1_I2C1_SHIFT;
reg = writel(reg, IMX_CCM_BASE + CCM_CGR1);
/* 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);
reg = readl(IMX_AIPS1_BASE + 0x50);
reg &= 0x00FFFFFF;
writel(reg, 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);
reg = readl(IMX_AIPS2_BASE + 0x50);
reg &= 0x00FFFFFF;
writel(reg, 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_init);
static int f3s_get_rev(struct i2c_client *client)
{
u8 reg[3];
int rev;
i2c_read_reg(client, 0x7, reg, sizeof(reg));
rev = reg[0] << 16 | reg [1] << 8 | reg[2];
dev_info(&client->dev, "revision: 0x%x\n", rev);
/* just return '0' or '1' */
return !!((rev >> 6) & 0x7);
}
static void f3s_pmic_init_v2(struct i2c_client *client)
{
u8 reg[3];
i2c_read_reg(client, 0x1e, reg, sizeof(reg));
reg[2] |= 0x03;
i2c_write_reg(client, 0x1e, reg, sizeof(reg));
i2c_read_reg(client, 0x20, reg, sizeof(reg));
reg[2] |= 0x01;
i2c_write_reg(client, 0x20, reg, sizeof(reg));
}
static void f3s_pmic_init_all(struct i2c_client *client)
{
u8 reg[1];
i2c_read_reg(client, 0x20, reg, sizeof(reg));
reg[0] |= 0x04;
i2c_write_reg(client, 0x20, reg, sizeof(reg));
udelay(200 * 1000);
i2c_read_reg(client, 0x1a, reg, sizeof(reg));
reg[0] &= 0x7f;
i2c_write_reg(client, 0x1a, reg, sizeof(reg));
udelay(200 * 1000);
reg[0] |= 0x80;
i2c_write_reg(client, 0x1a, reg, sizeof(reg));
}
static int f3s_pmic_init(void)
{
struct i2c_client *client;
int rev;
client = mc13892_get_client();
if (!client)
return -ENODEV;
rev = f3s_get_rev(client);
if (rev) {
printf("i.MX35 CPU board version 2.0\n");
f3s_pmic_init_v2(client);
} else {
printf("i.MX35 CPU board version 1.0\n");
}
client = mc9sdz60_get_client();
if (!client)
return -ENODEV;
f3s_pmic_init_all(client);
return 0;
}
late_initcall(f3s_pmic_init);
