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u-boot/board/ads5121/ads5121.c
Becky Bruce 9973e3c614 Change initdram() return type to phys_size_t 
This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory.  phys_size_t is defined as an unsigned long on almost
all current platforms.

This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram).  It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.

Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-12 08:50:18 +02:00

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/*
* (C) Copyright 2007 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 <mpc512x.h>
#include <asm/bitops.h>
#include <command.h>
#include <fdt_support.h>
/* Clocks in use */
#define SCCR1_CLOCKS_EN (CLOCK_SCCR1_CFG_EN | \
CLOCK_SCCR1_LPC_EN | \
CLOCK_SCCR1_PSC_EN(CONFIG_PSC_CONSOLE) | \
CLOCK_SCCR1_PSCFIFO_EN | \
CLOCK_SCCR1_DDR_EN | \
CLOCK_SCCR1_FEC_EN | \
CLOCK_SCCR1_PCI_EN | \
CLOCK_SCCR1_TPR_EN)
#define SCCR2_CLOCKS_EN (CLOCK_SCCR2_MEM_EN | \
CLOCK_SCCR2_SPDIF_EN | \
CLOCK_SCCR2_DIU_EN | \
CLOCK_SCCR2_I2C_EN)
#define CSAW_START(start) ((start) & 0xFFFF0000)
#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
#define MPC5121_IOCTL_PSC6_0 (0x284/4)
#define MPC5121_IO_DIU_START (0x288/4)
#define MPC5121_IO_DIU_END (0x2fc/4)
/* Functional pin muxing */
#define MPC5121_IO_FUNC1 (0 << 7)
#define MPC5121_IO_FUNC2 (1 << 7)
#define MPC5121_IO_FUNC3 (2 << 7)
#define MPC5121_IO_FUNC4 (3 << 7)
#define MPC5121_IO_ST (1 << 2)
#define MPC5121_IO_DS_1 (0)
#define MPC5121_IO_DS_2 (1)
#define MPC5121_IO_DS_3 (2)
#define MPC5121_IO_DS_4 (3)
long int fixed_sdram(void);
int board_early_init_f (void)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 lpcaw, tmp32;
volatile ioctrl512x_t *ioctl = &(im->io_ctrl);
int i;
/*
* Initialize Local Window for the CPLD registers access (CS2 selects
* the CPLD chip)
*/
im->sysconf.lpcs2aw = CSAW_START(CFG_CPLD_BASE) |
CSAW_STOP(CFG_CPLD_BASE, CFG_CPLD_SIZE);
im->lpc.cs_cfg[2] = CFG_CS2_CFG;
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync
*/
lpcaw = im->sysconf.lpcs2aw;
__asm__ __volatile__ ("isync");
/*
* 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.
*/
*((volatile u8 *)(CFG_CPLD_BASE + 0x08)) = 0xC1;
/*
* Enable clocks
*/
im->clk.sccr[0] = SCCR1_CLOCKS_EN;
im->clk.sccr[1] = SCCR2_CLOCKS_EN;
/* Configure DIU clock pin */
tmp32 = ioctl->regs[MPC5121_IOCTL_PSC6_0];
tmp32 &= ~0x1ff;
tmp32 |= MPC5121_IO_FUNC3 | MPC5121_IO_DS_4;
ioctl->regs[MPC5121_IOCTL_PSC6_0] = tmp32;
/* Initialize IO pins (pin mux) for DIU function */
for (i = MPC5121_IO_DIU_START; i < MPC5121_IO_DIU_END; i++)
ioctl->regs[i] |= (MPC5121_IO_FUNC3 | MPC5121_IO_DS_4);
return 0;
}
phys_size_t initdram (int board_type)
{
u32 msize = 0;
msize = fixed_sdram ();
return msize;
}
/*
* fixed sdram init -- the board doesn't use memory modules that have serial presence
* detect or similar mechanism for discovery of the DRAM settings
*/
long int fixed_sdram (void)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 msize = CFG_DDR_SIZE * 1024 * 1024;
u32 msize_log2 = __ilog2 (msize);
u32 i;
/* Initialize IO Control */
im->io_ctrl.regs[MEM_IDX] = IOCTRL_MUX_DDR;
/* Initialize DDR Local Window */
im->sysconf.ddrlaw.bar = CFG_DDR_BASE & 0xFFFFF000;
im->sysconf.ddrlaw.ar = msize_log2 - 1;
/*
* According to MPC5121e RM, configuring local access windows should
* be followed by a dummy read of the config register that was
* modified last and an isync
*/
i = im->sysconf.ddrlaw.ar;
__asm__ __volatile__ ("isync");
/* Enable DDR */
im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_EN;
/* Initialize DDR Priority Manager */
im->mddrc.prioman_config1 = CFG_MDDRCGRP_PM_CFG1;
im->mddrc.prioman_config2 = CFG_MDDRCGRP_PM_CFG2;
im->mddrc.hiprio_config = CFG_MDDRCGRP_HIPRIO_CFG;
im->mddrc.lut_table0_main_upper = CFG_MDDRCGRP_LUT0_MU;
im->mddrc.lut_table0_main_lower = CFG_MDDRCGRP_LUT0_ML;
im->mddrc.lut_table1_main_upper = CFG_MDDRCGRP_LUT1_MU;
im->mddrc.lut_table1_main_lower = CFG_MDDRCGRP_LUT1_ML;
im->mddrc.lut_table2_main_upper = CFG_MDDRCGRP_LUT2_MU;
im->mddrc.lut_table2_main_lower = CFG_MDDRCGRP_LUT2_ML;
im->mddrc.lut_table3_main_upper = CFG_MDDRCGRP_LUT3_MU;
im->mddrc.lut_table3_main_lower = CFG_MDDRCGRP_LUT3_ML;
im->mddrc.lut_table4_main_upper = CFG_MDDRCGRP_LUT4_MU;
im->mddrc.lut_table4_main_lower = CFG_MDDRCGRP_LUT4_ML;
im->mddrc.lut_table0_alternate_upper = CFG_MDDRCGRP_LUT0_AU;
im->mddrc.lut_table0_alternate_lower = CFG_MDDRCGRP_LUT0_AL;
im->mddrc.lut_table1_alternate_upper = CFG_MDDRCGRP_LUT1_AU;
im->mddrc.lut_table1_alternate_lower = CFG_MDDRCGRP_LUT1_AL;
im->mddrc.lut_table2_alternate_upper = CFG_MDDRCGRP_LUT2_AU;
im->mddrc.lut_table2_alternate_lower = CFG_MDDRCGRP_LUT2_AL;
im->mddrc.lut_table3_alternate_upper = CFG_MDDRCGRP_LUT3_AU;
im->mddrc.lut_table3_alternate_lower = CFG_MDDRCGRP_LUT3_AL;
im->mddrc.lut_table4_alternate_upper = CFG_MDDRCGRP_LUT4_AU;
im->mddrc.lut_table4_alternate_lower = CFG_MDDRCGRP_LUT4_AL;
/* Initialize MDDRC */
im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG;
im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0;
im->mddrc.ddr_time_config1 = CFG_MDDRC_TIME_CFG1;
im->mddrc.ddr_time_config2 = CFG_MDDRC_TIME_CFG2;
/* Initialize DDR */
for (i = 0; i < 10; i++)
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL;
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_RFSH;
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_RFSH;
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP;
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_EM2;
im->mddrc.ddr_command = CFG_MICRON_NOP;
im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL;
im->mddrc.ddr_command = CFG_MICRON_EM2;
im->mddrc.ddr_command = CFG_MICRON_EM3;
im->mddrc.ddr_command = CFG_MICRON_EN_DLL;
im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP;
im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL;
im->mddrc.ddr_command = CFG_MICRON_RFSH;
im->mddrc.ddr_command = CFG_MICRON_INIT_DEV_OP;
im->mddrc.ddr_command = CFG_MICRON_OCD_DEFAULT;
im->mddrc.ddr_command = CFG_MICRON_PCHG_ALL;
im->mddrc.ddr_command = CFG_MICRON_NOP;
/* Start MDDRC */
im->mddrc.ddr_time_config0 = CFG_MDDRC_TIME_CFG0_RUN;
im->mddrc.ddr_sys_config = CFG_MDDRC_SYS_CFG_RUN;
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%02lx\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%02lx\n", tmp_val);
#ifdef CONFIG_FSL_DIU_FB
#if !(defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE))
ads5121_diu_init();
#endif
#endif
return 0;
}
int checkboard (void)
{
ushort brd_rev = *(vu_short *) (CFG_CPLD_BASE + 0x00);
uchar cpld_rev = *(vu_char *) (CFG_CPLD_BASE + 0x02);
volatile immap_t *im = (immap_t *) CFG_IMMR;
volatile unsigned long *reg;
int i;
printf ("Board: ADS5121 rev. 0x%04x (CPLD rev. 0x%02x)\n",
brd_rev, cpld_rev);
/* change the slew rate on all pata pins to max */
reg = (unsigned long *) &(im->io_ctrl.regs[PATA_CE1_IDX]);
for (i = 0; i < 9; i++)
reg[i] |= 0x00000003;
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);
fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
}
#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
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