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smaeul-u-boot/cpu/mcf52x2/cpu_init.c
Wolfgang Denk 4176c79964 Merge with /home/hs/U-Boot/u-boot-dev
2006-06-10 19:27:47 +02:00

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/*
* (C) Copyright 2003
* Josef Baumgartner <josef.baumgartner@telex.de>
*
* MCF5282 additionals
* (C) Copyright 2005
* BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
*
* 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 <watchdog.h>
#ifdef CONFIG_M5271
#include <asm/m5271.h>
#include <asm/immap_5271.h>
#endif
#ifdef CONFIG_M5272
#include <asm/m5272.h>
#include <asm/immap_5272.h>
#endif
#ifdef CONFIG_M5282
#include <asm/m5282.h>
#include <asm/immap_5282.h>
#endif
#ifdef CONFIG_M5249
#include <asm/m5249.h>
#endif
#if defined(CONFIG_M5271)
void cpu_init_f (void)
{
#ifndef CONFIG_WATCHDOG
/* Disable the watchdog if we aren't using it */
mbar_writeShort(MCF_WTM_WCR, 0);
#endif
/* Set clockspeed to 100MHz */
mbar_writeShort(MCF_FMPLL_SYNCR,
MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0));
while (!mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK);
/* Enable UART pins */
mbar_writeShort(MCF_GPIO_PAR_UART, MCF_GPIO_PAR_UART_U0TXD |
MCF_GPIO_PAR_UART_U0RXD |
MCF_GPIO_PAR_UART_U1RXD_UART1 |
MCF_GPIO_PAR_UART_U1TXD_UART1);
/* Enable Ethernet pins */
mbar_writeByte(MCF_GPIO_PAR_FECI2C, CFG_FECI2C);
}
/*
* initialize higher level parts of CPU like timers
*/
int cpu_init_r (void)
{
return (0);
}
#endif
#if defined(CONFIG_M5272)
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f (void)
{
/* if we come from RAM we assume the CPU is
* already initialized.
*/
#ifndef CONFIG_MONITOR_IS_IN_RAM
volatile immap_t *regp = (immap_t *)CFG_MBAR;
volatile unsigned char *mbar;
mbar = (volatile unsigned char *) CFG_MBAR;
regp->sysctrl_reg.sc_scr = CFG_SCR;
regp->sysctrl_reg.sc_spr = CFG_SPR;
/* Setup Ports: */
regp->gpio_reg.gpio_pacnt = CFG_PACNT;
regp->gpio_reg.gpio_paddr = CFG_PADDR;
regp->gpio_reg.gpio_padat = CFG_PADAT;
regp->gpio_reg.gpio_pbcnt = CFG_PBCNT;
regp->gpio_reg.gpio_pbddr = CFG_PBDDR;
regp->gpio_reg.gpio_pbdat = CFG_PBDAT;
regp->gpio_reg.gpio_pdcnt = CFG_PDCNT;
/* Memory Controller: */
regp->csctrl_reg.cs_br0 = CFG_BR0_PRELIM;
regp->csctrl_reg.cs_or0 = CFG_OR0_PRELIM;
#if (defined(CFG_OR1_PRELIM) && defined(CFG_BR1_PRELIM))
regp->csctrl_reg.cs_br1 = CFG_BR1_PRELIM;
regp->csctrl_reg.cs_or1 = CFG_OR1_PRELIM;
#endif
#if defined(CFG_OR2_PRELIM) && defined(CFG_BR2_PRELIM)
regp->csctrl_reg.cs_br2 = CFG_BR2_PRELIM;
regp->csctrl_reg.cs_or2 = CFG_OR2_PRELIM;
#endif
#if defined(CFG_OR3_PRELIM) && defined(CFG_BR3_PRELIM)
regp->csctrl_reg.cs_br3 = CFG_BR3_PRELIM;
regp->csctrl_reg.cs_or3 = CFG_OR3_PRELIM;
#endif
#if defined(CFG_OR4_PRELIM) && defined(CFG_BR4_PRELIM)
regp->csctrl_reg.cs_br4 = CFG_BR4_PRELIM;
regp->csctrl_reg.cs_or4 = CFG_OR4_PRELIM;
#endif
#if defined(CFG_OR5_PRELIM) && defined(CFG_BR5_PRELIM)
regp->csctrl_reg.cs_br5 = CFG_BR5_PRELIM;
regp->csctrl_reg.cs_or5 = CFG_OR5_PRELIM;
#endif
#if defined(CFG_OR6_PRELIM) && defined(CFG_BR6_PRELIM)
regp->csctrl_reg.cs_br6 = CFG_BR6_PRELIM;
regp->csctrl_reg.cs_or6 = CFG_OR6_PRELIM;
#endif
#if defined(CFG_OR7_PRELIM) && defined(CFG_BR7_PRELIM)
regp->csctrl_reg.cs_br7 = CFG_BR7_PRELIM;
regp->csctrl_reg.cs_or7 = CFG_OR7_PRELIM;
#endif
#endif /* #ifndef CONFIG_MONITOR_IS_IN_RAM */
/* enable instruction cache now */
icache_enable();
}
/*
* initialize higher level parts of CPU like timers
*/
int cpu_init_r (void)
{
return (0);
}
#endif /* #if defined(CONFIG_M5272) */
#ifdef CONFIG_M5282
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f (void)
{
#ifndef CONFIG_WATCHDOG
/* disable watchdog if we aren't using it */
MCFWTM_WCR = 0;
#endif
#ifndef CONFIG_MONITOR_IS_IN_RAM
/* Set speed /PLL */
MCFCLOCK_SYNCR = MCFCLOCK_SYNCR_MFD(CFG_MFD) | MCFCLOCK_SYNCR_RFD(CFG_RFD);
/* Set up the GPIO ports */
#ifdef CFG_PEPAR
MCFGPIO_PEPAR = CFG_PEPAR;
#endif
#ifdef CFG_PFPAR
MCFGPIO_PFPAR = CFG_PFPAR;
#endif
#ifdef CFG_PJPAR
MCFGPIO_PJPAR = CFG_PJPAR;
#endif
#ifdef CFG_PSDPAR
MCFGPIO_PSDPAR = CFG_PSDPAR;
#endif
#ifdef CFG_PASPAR
MCFGPIO_PASPAR = CFG_PASPAR;
#endif
#ifdef CFG_PEHLPAR
MCFGPIO_PEHLPAR = CFG_PEHLPAR;
#endif
#ifdef CFG_PQSPAR
MCFGPIO_PQSPAR = CFG_PQSPAR;
#endif
#ifdef CFG_PTCPAR
MCFGPIO_PTCPAR = CFG_PTCPAR;
#endif
#ifdef CFG_PTDPAR
MCFGPIO_PTDPAR = CFG_PTDPAR;
#endif
#ifdef CFG_PUAPAR
MCFGPIO_PUAPAR = CFG_PUAPAR;
#endif
#ifdef CFG_DDRUA
MCFGPIO_DDRUA = CFG_DDRUA;
#endif
/* This is probably a bad place to setup chip selects, but everyone
else is doing it! */
#if defined(CFG_CS0_BASE) & defined(CFG_CS0_SIZE) & \
defined(CFG_CS0_WIDTH) & defined(CFG_CS0_RO) & \
defined(CFG_CS0_WS)
MCFCSM_CSAR0 = (CFG_CS0_BASE >> 16) & 0xFFFF;
#if (CFG_CS0_WIDTH == 8)
#define CFG_CS0_PS MCFCSM_CSCR_PS_8
#elif (CFG_CS0_WIDTH == 16)
#define CFG_CS0_PS MCFCSM_CSCR_PS_16
#elif (CFG_CS0_WIDTH == 32)
#define CFG_CS0_PS MCFCSM_CSCR_PS_32
#else
#error "CFG_CS0_WIDTH: Fault - wrong bus with for CS0"
#endif
MCFCSM_CSCR0 = MCFCSM_CSCR_WS(CFG_CS0_WS)
|CFG_CS0_PS
|MCFCSM_CSCR_AA;
#if (CFG_CS0_RO != 0)
MCFCSM_CSMR0 = MCFCSM_CSMR_BAM(CFG_CS0_SIZE-1)
|MCFCSM_CSMR_WP|MCFCSM_CSMR_V;
#else
MCFCSM_CSMR0 = MCFCSM_CSMR_BAM(CFG_CS0_SIZE-1)|MCFCSM_CSMR_V;
#endif
#else
#waring "Chip Select 0 are not initialized/used"
#endif
#if defined(CFG_CS1_BASE) & defined(CFG_CS1_SIZE) & \
defined(CFG_CS1_WIDTH) & defined(CFG_CS1_RO) & \
defined(CFG_CS1_WS)
MCFCSM_CSAR1 = (CFG_CS1_BASE >> 16) & 0xFFFF;
#if (CFG_CS1_WIDTH == 8)
#define CFG_CS1_PS MCFCSM_CSCR_PS_8
#elif (CFG_CS1_WIDTH == 16)
#define CFG_CS1_PS MCFCSM_CSCR_PS_16
#elif (CFG_CS1_WIDTH == 32)
#define CFG_CS1_PS MCFCSM_CSCR_PS_32
#else
#error "CFG_CS1_WIDTH: Fault - wrong bus with for CS1"
#endif
MCFCSM_CSCR1 = MCFCSM_CSCR_WS(CFG_CS1_WS)
|CFG_CS1_PS
|MCFCSM_CSCR_AA;
#if (CFG_CS1_RO != 0)
MCFCSM_CSMR1 = MCFCSM_CSMR_BAM(CFG_CS1_SIZE-1)
|MCFCSM_CSMR_WP
|MCFCSM_CSMR_V;
#else
MCFCSM_CSMR1 = MCFCSM_CSMR_BAM(CFG_CS1_SIZE-1)
|MCFCSM_CSMR_V;
#endif
#else
#warning "Chip Select 1 are not initialized/used"
#endif
#if defined(CFG_CS2_BASE) & defined(CFG_CS2_SIZE) & \
defined(CFG_CS2_WIDTH) & defined(CFG_CS2_RO) & \
defined(CFG_CS2_WS)
MCFCSM_CSAR2 = (CFG_CS2_BASE >> 16) & 0xFFFF;
#if (CFG_CS2_WIDTH == 8)
#define CFG_CS2_PS MCFCSM_CSCR_PS_8
#elif (CFG_CS2_WIDTH == 16)
#define CFG_CS2_PS MCFCSM_CSCR_PS_16
#elif (CFG_CS2_WIDTH == 32)
#define CFG_CS2_PS MCFCSM_CSCR_PS_32
#else
#error "CFG_CS2_WIDTH: Fault - wrong bus with for CS2"
#endif
MCFCSM_CSCR2 = MCFCSM_CSCR_WS(CFG_CS2_WS)
|CFG_CS2_PS
|MCFCSM_CSCR_AA;
#if (CFG_CS2_RO != 0)
MCFCSM_CSMR2 = MCFCSM_CSMR_BAM(CFG_CS2_SIZE-1)
|MCFCSM_CSMR_WP
|MCFCSM_CSMR_V;
#else
MCFCSM_CSMR2 = MCFCSM_CSMR_BAM(CFG_CS2_SIZE-1)
|MCFCSM_CSMR_V;
#endif
#else
#warning "Chip Select 2 are not initialized/used"
#endif
#if defined(CFG_CS3_BASE) & defined(CFG_CS3_SIZE) & \
defined(CFG_CS3_WIDTH) & defined(CFG_CS3_RO) & \
defined(CFG_CS3_WS)
MCFCSM_CSAR3 = (CFG_CS3_BASE >> 16) & 0xFFFF;
#if (CFG_CS3_WIDTH == 8)
#define CFG_CS3_PS MCFCSM_CSCR_PS_8
#elif (CFG_CS3_WIDTH == 16)
#define CFG_CS3_PS MCFCSM_CSCR_PS_16
#elif (CFG_CS3_WIDTH == 32)
#define CFG_CS3_PS MCFCSM_CSCR_PS_32
#else
#error "CFG_CS3_WIDTH: Fault - wrong bus with for CS1"
#endif
MCFCSM_CSCR3 = MCFCSM_CSCR_WS(CFG_CS3_WS)
|CFG_CS3_PS
|MCFCSM_CSCR_AA;
#if (CFG_CS3_RO != 0)
MCFCSM_CSMR3 = MCFCSM_CSMR_BAM(CFG_CS3_SIZE-1)
|MCFCSM_CSMR_WP
|MCFCSM_CSMR_V;
#else
MCFCSM_CSMR3 = MCFCSM_CSMR_BAM(CFG_CS3_SIZE-1)
|MCFCSM_CSMR_V;
#endif
#else
#warning "Chip Select 3 are not initialized/used"
#endif
#endif /* CONFIG_MONITOR_IS_IN_RAM */
/* defer enabling cache until boot (see do_go) */
/* icache_enable(); */
}
/*
* initialize higher level parts of CPU like timers
*/
int cpu_init_r (void)
{
return (0);
}
#endif
#if defined(CONFIG_M5249)
/*
* Breath some life into the CPU...
*
* Set up the memory map,
* initialize a bunch of registers,
* initialize the UPM's
*/
void cpu_init_f (void)
{
#ifndef CFG_PLL_BYPASS
/*
* Setup the PLL to run at the specified speed
*
*/
volatile unsigned long cpll = mbar2_readLong(MCFSIM_PLLCR);
unsigned long pllcr;
#ifdef CFG_FAST_CLK
pllcr = 0x925a3100; /* ~140MHz clock (PLL bypass = 0) */
#else
pllcr = 0x135a4140; /* ~72MHz clock (PLL bypass = 0) */
#endif
cpll = cpll & 0xfffffffe; /* Set PLL bypass mode = 0 (PSTCLK = crystal) */
mbar2_writeLong(MCFSIM_PLLCR, cpll); /* Set the PLL to bypass mode (PSTCLK = crystal) */
mbar2_writeLong(MCFSIM_PLLCR, pllcr); /* set the clock speed */
pllcr ^= 0x00000001; /* Set pll bypass to 1 */
mbar2_writeLong(MCFSIM_PLLCR, pllcr); /* Start locking (pll bypass = 1) */
udelay(0x20); /* Wait for a lock ... */
#endif /* #ifndef CFG_PLL_BYPASS */
/*
* NOTE: by setting the GPIO_FUNCTION registers, we ensure that the UART pins
* (UART0: gpio 30,27, UART1: gpio 31, 28) will be used as UART pins
* which is their primary function.
* ~Jeremy
*/
mbar2_writeLong(MCFSIM_GPIO_FUNC, CFG_GPIO_FUNC);
mbar2_writeLong(MCFSIM_GPIO1_FUNC, CFG_GPIO1_FUNC);
mbar2_writeLong(MCFSIM_GPIO_EN, CFG_GPIO_EN);
mbar2_writeLong(MCFSIM_GPIO1_EN, CFG_GPIO1_EN);
mbar2_writeLong(MCFSIM_GPIO_OUT, CFG_GPIO_OUT);
mbar2_writeLong(MCFSIM_GPIO1_OUT, CFG_GPIO1_OUT);
/*
* dBug Compliance:
* You can verify these values by using dBug's 'ird'
* (Internal Register Display) command
* ~Jeremy
*
*/
mbar_writeByte(MCFSIM_MPARK, 0x30); /* 5249 Internal Core takes priority over DMA */
mbar_writeByte(MCFSIM_SYPCR, 0x00);
mbar_writeByte(MCFSIM_SWIVR, 0x0f);
mbar_writeByte(MCFSIM_SWSR, 0x00);
mbar_writeLong(MCFSIM_IMR, 0xfffffbff);
mbar_writeByte(MCFSIM_SWDICR, 0x00);
mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
mbar_writeByte(MCFSIM_I2CICR, 0x00);
mbar_writeByte(MCFSIM_UART1ICR, 0x00);
mbar_writeByte(MCFSIM_UART2ICR, 0x00);
mbar_writeByte(MCFSIM_ICR6, 0x00);
mbar_writeByte(MCFSIM_ICR7, 0x00);
mbar_writeByte(MCFSIM_ICR8, 0x00);
mbar_writeByte(MCFSIM_ICR9, 0x00);
mbar_writeByte(MCFSIM_QSPIICR, 0x00);
mbar2_writeLong(MCFSIM_GPIO_INT_EN, 0x00000080);
mbar2_writeByte(MCFSIM_INTBASE, 0x40); /* Base interrupts at 64 */
mbar2_writeByte(MCFSIM_SPURVEC, 0x00);
mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020); /* Enable a 1 cycle pre-drive cycle on CS1 */
/* Setup interrupt priorities for gpio7 */
/* mbar2_writeLong(MCFSIM_INTLEV5, 0x70000000); */
/* IDE Config registers */
mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020);
mbar2_writeLong(MCFSIM_IDECONFIG2, 0x00000000);
/*
* Setup chip selects...
*/
mbar_writeShort(MCFSIM_CSAR1, CFG_CSAR1);
mbar_writeShort(MCFSIM_CSCR1, CFG_CSCR1);
mbar_writeLong(MCFSIM_CSMR1, CFG_CSMR1);
mbar_writeShort(MCFSIM_CSAR0, CFG_CSAR0);
mbar_writeShort(MCFSIM_CSCR0, CFG_CSCR0);
mbar_writeLong(MCFSIM_CSMR0, CFG_CSMR0);
/* enable instruction cache now */
icache_enable();
}
/*
* initialize higher level parts of CPU like timers
*/
int cpu_init_r (void)
{
return (0);
}
#endif /* #if defined(CONFIG_M5249) */
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