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u-boot/board/freescale/mpc5121ads/mpc5121ads.c
Anatolij Gustschin e5f538649c mpc512x: use common code for clock setting for all mpc512x boards 
Only define enabled clocks in the config file and enable
the clocks in common code.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Cc: Wolfgang Denk <wd@denx.de>
2013-03-09 08:22:23 +01:00

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/*
* (C) Copyright 2007-2009 DENX Software Engineering
*
* 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 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 <asm/bitops.h>
#include <command.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/mpc512x.h>
#include <fdt_support.h>
#ifdef CONFIG_MISC_INIT_R
#include <i2c.h>
#endif
#include <net.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
DECLARE_GLOBAL_DATA_PTR;
void __mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip);
/* Active chip number set in board_nand_select_device() (mpc5121_nfc.c) */
extern int mpc5121_nfc_chip;
/* Control chips select signal on MPC5121ADS board */
void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip)
{
unsigned char *csreg = (u8 *)CONFIG_SYS_CPLD_BASE + 0x09;
u8 v;
v = in_8(csreg);
v |= 0x0F;
if (chip >= 0) {
__mpc5121_nfc_select_chip(mtd, 0);
v &= ~(1 << mpc5121_nfc_chip);
} else {
__mpc5121_nfc_select_chip(mtd, -1);
}
out_8(csreg, v);
}
int board_early_init_f(void)
{
/*
* Disable Boot NOR FLASH write protect - CPLD Reg 8 NOR FLASH Control
*
* Without this the flash identification routine fails, as it needs to issue
* write commands in order to establish the device ID.
*/
#ifdef CONFIG_MPC5121ADS_REV2
out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1);
#else
if (in_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08)) & 0x04) {
out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0xC1);
} else {
/* running from Backup flash */
out_8((u8 *)(CONFIG_SYS_CPLD_BASE + 0x08), 0x32);
}
#endif
return 0;
}
int is_micron(void){
ushort brd_rev = *(vu_short *)(CONFIG_SYS_CPLD_BASE + 0x00);
uchar macaddr[6];
u32 brddate, macchk, ismicron;
/*
* MAC address has serial number with date of manufacture
* Boards made before Nov-08 #1180 use Micron memory;
* 001e59 is the STx vendor #
* Default is Elpida since it works for both but is slightly slower
*/
ismicron = 0;
if (brd_rev >= 0x0400 && eth_getenv_enetaddr("ethaddr", macaddr)) {
brddate = (macaddr[3] << 16) + (macaddr[4] << 8) + macaddr[5];
macchk = (macaddr[0] << 16) + (macaddr[1] << 8) + macaddr[2];
debug("brddate = %d\n\t", brddate);
if (macchk == 0x001e59 && brddate <= 8111180)
ismicron = 1;
} else if (brd_rev < 0x400) {
ismicron = 1;
}
debug("Using %s Memory settings\n\t",
ismicron ? "Micron" : "Elpida");
return(ismicron);
}
phys_size_t initdram(int board_type)
{
u32 msize = 0;
/*
* Elpida MDDRC and initialization settings are an alternative
* to the Default Micron ones for all but the earliest Rev 4 boards
*/
ddr512x_config_t elpida_mddrc_config = {
.ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG_ELPIDA,
.ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0,
.ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1_ELPIDA,
.ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2_ELPIDA,
};
u32 elpida_init_sequence[] = {
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_PCHG_ALL,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_EM2,
CONFIG_SYS_DDRCMD_EM3,
CONFIG_SYS_DDRCMD_EN_DLL,
CONFIG_SYS_ELPIDA_RES_DLL,
CONFIG_SYS_DDRCMD_PCHG_ALL,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_DDRCMD_RFSH,
CONFIG_SYS_ELPIDA_INIT_DEV_OP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_OCD_DEFAULT,
CONFIG_SYS_ELPIDA_OCD_EXIT,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP,
CONFIG_SYS_DDRCMD_NOP
};
if (is_micron()) {
msize = fixed_sdram(NULL, NULL, 0);
} else {
msize = fixed_sdram(&elpida_mddrc_config,
elpida_init_sequence,
sizeof(elpida_init_sequence)/sizeof(u32));
}
return msize;
}
int misc_init_r(void)
{
u8 tmp_val;
/* Using this for DIU init before the driver in linux takes over
* Enable the TFP410 Encoder (I2C address 0x38)
*/
i2c_set_bus_num(2);
tmp_val = 0xBF;
i2c_write(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
/* Verify if enabled */
tmp_val = 0;
i2c_read(0x38, 0x08, 1, &tmp_val, sizeof(tmp_val));
debug("DVI Encoder Read: 0x%02x\n", tmp_val);
tmp_val = 0x10;
i2c_write(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
/* Verify if enabled */
tmp_val = 0;
i2c_read(0x38, 0x0A, 1, &tmp_val, sizeof(tmp_val));
debug("DVI Encoder Read: 0x%02x\n", tmp_val);
return 0;
}
static iopin_t ioregs_init[] = {
/* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
{
offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
},
/* Set highest Slew on 9 PATA pins */
{
offsetof(struct ioctrl512x, io_control_pata_ce1), 9, 1,
IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
},
/* FUNC1=FEC_COL Sets Next 15 to FEC pads */
{
offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
},
/* FUNC1=SPDIF_TXCLK */
{
offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
},
/* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
{
offsetof(struct ioctrl512x, io_control_i2c1_scl), 2, 0,
IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
},
/* FUNC2=DIU CLK */
{
offsetof(struct ioctrl512x, io_control_psc6_0), 1, 0,
IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
},
/* FUNC2=DIU_HSYNC */
{
offsetof(struct ioctrl512x, io_control_psc6_1), 1, 0,
IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
},
/* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
{
offsetof(struct ioctrl512x, io_control_psc6_4), 26, 0,
IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
}
};
static iopin_t rev2_silicon_pci_ioregs_init[] = {
/* FUNC0=PCI Sets next 54 to PCI pads */
{
offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
}
};
int checkboard (void)
{
ushort brd_rev = *(vu_short *) (CONFIG_SYS_CPLD_BASE + 0x00);
uchar cpld_rev = *(vu_char *) (CONFIG_SYS_CPLD_BASE + 0x02);
volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
u32 spridr = in_be32(&im->sysconf.spridr);
printf ("Board: MPC5121ADS rev. 0x%04x (CPLD rev. 0x%02x)\n",
brd_rev, cpld_rev);
/* initialize function mux & slew rate IO inter alia on IO Pins */
iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
if (SVR_MJREV (spridr) >= 2)
iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
return 0;
}
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
ft_cpu_setup(blob, bd);
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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