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u-boot/board/freescale/mpc8360emds/mpc8360emds.c
Anton Vorontsov 651d96f7e4 MPC8360E-MDS: configure and enable second UART 
Despite user manual, BCSR9.7 is negated (high) on HRST, so
UART2 is disabled. Fix that and configure QE pins properly.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
2008-01-08 09:55:39 -06:00

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7.6 KiB
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/*
* Copyright (C) 2006 Freescale Semiconductor, Inc.
* Dave Liu <daveliu@freescale.com>
*
* 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.
*/
#include <common.h>
#include <ioports.h>
#include <mpc83xx.h>
#include <i2c.h>
#include <spd.h>
#include <miiphy.h>
#if defined(CONFIG_PCI)
#include <pci.h>
#endif
#if defined(CONFIG_SPD_EEPROM)
#include <spd_sdram.h>
#else
#include <asm/mmu.h>
#endif
#if defined(CONFIG_OF_FLAT_TREE)
#include <ft_build.h>
#elif defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#endif
#if defined(CONFIG_PQ_MDS_PIB)
#include "../common/pq-mds-pib.h"
#endif
const qe_iop_conf_t qe_iop_conf_tab[] = {
/* GETH1 */
{0, 3, 1, 0, 1}, /* TxD0 */
{0, 4, 1, 0, 1}, /* TxD1 */
{0, 5, 1, 0, 1}, /* TxD2 */
{0, 6, 1, 0, 1}, /* TxD3 */
{1, 6, 1, 0, 3}, /* TxD4 */
{1, 7, 1, 0, 1}, /* TxD5 */
{1, 9, 1, 0, 2}, /* TxD6 */
{1, 10, 1, 0, 2}, /* TxD7 */
{0, 9, 2, 0, 1}, /* RxD0 */
{0, 10, 2, 0, 1}, /* RxD1 */
{0, 11, 2, 0, 1}, /* RxD2 */
{0, 12, 2, 0, 1}, /* RxD3 */
{0, 13, 2, 0, 1}, /* RxD4 */
{1, 1, 2, 0, 2}, /* RxD5 */
{1, 0, 2, 0, 2}, /* RxD6 */
{1, 4, 2, 0, 2}, /* RxD7 */
{0, 7, 1, 0, 1}, /* TX_EN */
{0, 8, 1, 0, 1}, /* TX_ER */
{0, 15, 2, 0, 1}, /* RX_DV */
{0, 16, 2, 0, 1}, /* RX_ER */
{0, 0, 2, 0, 1}, /* RX_CLK */
{2, 9, 1, 0, 3}, /* GTX_CLK - CLK10 */
{2, 8, 2, 0, 1}, /* GTX125 - CLK9 */
/* GETH2 */
{0, 17, 1, 0, 1}, /* TxD0 */
{0, 18, 1, 0, 1}, /* TxD1 */
{0, 19, 1, 0, 1}, /* TxD2 */
{0, 20, 1, 0, 1}, /* TxD3 */
{1, 2, 1, 0, 1}, /* TxD4 */
{1, 3, 1, 0, 2}, /* TxD5 */
{1, 5, 1, 0, 3}, /* TxD6 */
{1, 8, 1, 0, 3}, /* TxD7 */
{0, 23, 2, 0, 1}, /* RxD0 */
{0, 24, 2, 0, 1}, /* RxD1 */
{0, 25, 2, 0, 1}, /* RxD2 */
{0, 26, 2, 0, 1}, /* RxD3 */
{0, 27, 2, 0, 1}, /* RxD4 */
{1, 12, 2, 0, 2}, /* RxD5 */
{1, 13, 2, 0, 3}, /* RxD6 */
{1, 11, 2, 0, 2}, /* RxD7 */
{0, 21, 1, 0, 1}, /* TX_EN */
{0, 22, 1, 0, 1}, /* TX_ER */
{0, 29, 2, 0, 1}, /* RX_DV */
{0, 30, 2, 0, 1}, /* RX_ER */
{0, 31, 2, 0, 1}, /* RX_CLK */
{2, 2, 1, 0, 2}, /* GTX_CLK = CLK10 */
{2, 3, 2, 0, 1}, /* GTX125 - CLK4 */
{0, 1, 3, 0, 2}, /* MDIO */
{0, 2, 1, 0, 1}, /* MDC */
{5, 0, 1, 0, 2}, /* UART2_SOUT */
{5, 1, 2, 0, 3}, /* UART2_CTS */
{5, 2, 1, 0, 1}, /* UART2_RTS */
{5, 3, 2, 0, 2}, /* UART2_SIN */
{0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
};
int board_early_init_f(void)
{
u8 *bcsr = (u8 *)CFG_BCSR;
const immap_t *immr = (immap_t *)CFG_IMMR;
/* Enable flash write */
bcsr[0xa] &= ~0x04;
/* Disable G1TXCLK, G2TXCLK h/w buffers (rev.2 h/w bug workaround) */
if (immr->sysconf.spridr == SPR_8360_REV20 ||
immr->sysconf.spridr == SPR_8360E_REV20 ||
immr->sysconf.spridr == SPR_8360_REV21 ||
immr->sysconf.spridr == SPR_8360E_REV21)
bcsr[0xe] = 0x30;
/* Enable second UART */
bcsr[0x9] &= ~0x01;
return 0;
}
int board_early_init_r(void)
{
#ifdef CONFIG_PQ_MDS_PIB
pib_init();
#endif
return 0;
}
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
extern void ddr_enable_ecc(unsigned int dram_size);
#endif
int fixed_sdram(void);
void sdram_init(void);
long int initdram(int board_type)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 msize = 0;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im)
return -1;
/* DDR SDRAM - Main SODIMM */
im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR;
#if defined(CONFIG_SPD_EEPROM)
msize = spd_sdram();
#else
msize = fixed_sdram();
#endif
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRC)
/*
* Initialize DDR ECC byte
*/
ddr_enable_ecc(msize * 1024 * 1024);
#endif
/*
* Initialize SDRAM if it is on local bus.
*/
sdram_init();
/* return total bus SDRAM size(bytes) -- DDR */
return (msize * 1024 * 1024);
}
#if !defined(CONFIG_SPD_EEPROM)
/*************************************************************************
* fixed sdram init -- doesn't use serial presence detect.
************************************************************************/
int fixed_sdram(void)
{
volatile immap_t *im = (immap_t *) CFG_IMMR;
u32 msize = 0;
u32 ddr_size;
u32 ddr_size_log2;
msize = CFG_DDR_SIZE;
for (ddr_size = msize << 20, ddr_size_log2 = 0;
(ddr_size > 1); ddr_size = ddr_size >> 1, ddr_size_log2++) {
if (ddr_size & 1) {
return -1;
}
}
im->sysconf.ddrlaw[0].ar =
LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE);
#if (CFG_DDR_SIZE != 256)
#warning Currenly any ddr size other than 256 is not supported
#endif
#ifdef CONFIG_DDR_II
im->ddr.csbnds[0].csbnds = CFG_DDR_CS0_BNDS;
im->ddr.cs_config[0] = CFG_DDR_CS0_CONFIG;
im->ddr.timing_cfg_0 = CFG_DDR_TIMING_0;
im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
im->ddr.timing_cfg_3 = CFG_DDR_TIMING_3;
im->ddr.sdram_cfg = CFG_DDR_SDRAM_CFG;
im->ddr.sdram_cfg2 = CFG_DDR_SDRAM_CFG2;
im->ddr.sdram_mode = CFG_DDR_MODE;
im->ddr.sdram_mode2 = CFG_DDR_MODE2;
im->ddr.sdram_interval = CFG_DDR_INTERVAL;
im->ddr.sdram_clk_cntl = CFG_DDR_CLK_CNTL;
#else
im->ddr.csbnds[0].csbnds = 0x00000007;
im->ddr.csbnds[1].csbnds = 0x0008000f;
im->ddr.cs_config[0] = CFG_DDR_CONFIG;
im->ddr.cs_config[1] = CFG_DDR_CONFIG;
im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1;
im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;
im->ddr.sdram_cfg = CFG_DDR_CONTROL;
im->ddr.sdram_mode = CFG_DDR_MODE;
im->ddr.sdram_interval = CFG_DDR_INTERVAL;
#endif
udelay(200);
im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN;
return msize;
}
#endif /*!CFG_SPD_EEPROM */
int checkboard(void)
{
puts("Board: Freescale MPC8360EMDS\n");
return 0;
}
/*
* if MPC8360EMDS is soldered with SDRAM
*/
#if defined(CFG_BR2_PRELIM) \
&& defined(CFG_OR2_PRELIM) \
&& defined(CFG_LBLAWBAR2_PRELIM) \
&& defined(CFG_LBLAWAR2_PRELIM)
/*
* Initialize SDRAM memory on the Local Bus.
*/
void sdram_init(void)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile lbus83xx_t *lbc = &immap->lbus;
uint *sdram_addr = (uint *) CFG_LBC_SDRAM_BASE;
/*
* Setup SDRAM Base and Option Registers, already done in cpu_init.c
*/
/*setup mtrpt, lsrt and lbcr for LB bus */
lbc->lbcr = CFG_LBC_LBCR;
lbc->mrtpr = CFG_LBC_MRTPR;
lbc->lsrt = CFG_LBC_LSRT;
asm("sync");
/*
* Configure the SDRAM controller Machine Mode Register.
*/
lbc->lsdmr = CFG_LBC_LSDMR_5; /* Normal Operation */
lbc->lsdmr = CFG_LBC_LSDMR_1; /* Precharge All Banks */
asm("sync");
*sdram_addr = 0xff;
udelay(100);
/*
* We need do 8 times auto refresh operation.
*/
lbc->lsdmr = CFG_LBC_LSDMR_2;
asm("sync");
*sdram_addr = 0xff; /* 1 times */
udelay(100);
*sdram_addr = 0xff; /* 2 times */
udelay(100);
*sdram_addr = 0xff; /* 3 times */
udelay(100);
*sdram_addr = 0xff; /* 4 times */
udelay(100);
*sdram_addr = 0xff; /* 5 times */
udelay(100);
*sdram_addr = 0xff; /* 6 times */
udelay(100);
*sdram_addr = 0xff; /* 7 times */
udelay(100);
*sdram_addr = 0xff; /* 8 times */
udelay(100);
/* Mode register write operation */
lbc->lsdmr = CFG_LBC_LSDMR_4;
asm("sync");
*(sdram_addr + 0xcc) = 0xff;
udelay(100);
/* Normal operation */
lbc->lsdmr = CFG_LBC_LSDMR_5 | 0x40000000;
asm("sync");
*sdram_addr = 0xff;
udelay(100);
}
#else
void sdram_init(void)
{
}
#endif
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
#if defined(CONFIG_OF_FLAT_TREE)
u32 *p;
int len;
p = ft_get_prop(blob, "/memory/reg", &len);
if (p != NULL) {
*p++ = cpu_to_be32(bd->bi_memstart);
*p = cpu_to_be32(bd->bi_memsize);
}
#endif
ft_cpu_setup(blob, bd);
#ifdef CONFIG_PCI
ft_pci_setup(blob, bd);
#endif
}
#endif
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