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u-boot/board/mbx8xx/mbx8xx.c
Mike Frysinger d8d21e699d boards: move board_get_enetaddr() into board-specific init 
The environment is the canonical storage location of the mac address, so
we're killing off the global data location and moving everything to
querying the env directly.

Rather than have the common ppc code have board-specific hooks, move the
board_get_enetaddr() function into the board-specific init functions.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Ben Warren <biggerbadderben@gmail.com>
2009-03-20 22:39:12 +01:00

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/*
* (C) Copyright 2000
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* Board specific routines for the MBX
*
* - initialisation
* - interface to VPD data (mac address, clock speeds)
* - memory controller
* - serial io initialisation
* - ethernet io initialisation
*
* -----------------------------------------------------------------
* 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 <commproc.h>
#include <mpc8xx.h>
#include "dimm.h"
#include "vpd.h"
#include "csr.h"
/* ------------------------------------------------------------------------- */
static const uint sdram_table_40[] = {
/* DRAM - single read. (offset 0 in upm RAM)
*/
0xCFAFC004, 0x0FAFC404, 0x0CAF0C04, 0x30AF0C00,
0xF1BF4805, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* DRAM - burst read. (offset 8 in upm RAM)
*/
0xCFAFC004, 0x0FAFC404, 0x0CAF0C04, 0x03AF0C08,
0x0CAF0C04, 0x03AF0C08, 0x0CAF0C04, 0x03AF0C08,
0x0CAF0C04, 0x30AF0C00, 0xF3BF4805, 0xFFFFC005,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* DRAM - single write. (offset 18 in upm RAM)
*/
0xCFFF0004, 0x0FFF0404, 0x0CFF0C00, 0x33FF4804,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* DRAM - burst write. (offset 20 in upm RAM)
*/
0xCFFF0004, 0x0FFF0404, 0x0CFF0C00, 0x03FF0C0C,
0x0CFF0C00, 0x03FF0C0C, 0x0CFF0C00, 0x03FF0C0C,
0x0CFF0C00, 0x33FF4804, 0xFFFFC005, 0xFFFFC005,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* refresh (offset 30 in upm RAM)
*/
0xFCFFC004, 0xC0FFC004, 0x01FFC004, 0x0FFFC004,
0x3FFFC004, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* exception. (offset 3c in upm RAM)
*/
0xFFFFC007, 0xFFFFC007, 0xFFFFC007, 0xFFFFC007,
};
static const uint sdram_table_50[] = {
/* DRAM - single read. (offset 0 in upm RAM)
*/
0xCFAFC004, 0x0FAFC404, 0x0CAF8C04, 0x10AF0C04,
0xF0AF0C00, 0xF3BF4805, 0xFFFFC005, 0xFFFFC005,
/* DRAM - burst read. (offset 8 in upm RAM)
*/
0xCFAFC004, 0X0FAFC404, 0X0CAF8C04, 0X00AF0C04,
/* 0X07AF0C08, 0X0CAF0C04, 0X01AF0C04, 0X0FAF0C04, */
0X07AF0C08, 0X0CAF0C04, 0X01AF0C04, 0X0FAF0C08,
0X0CAF0C04, 0X01AF0C04, 0X0FAF0C08, 0X0CAF0C04,
/* 0X10AF0C04, 0XF0AFC000, 0XF3FF4805, 0XFFFFC005, */
0X10AF0C04, 0XF0AFC000, 0XF3BF4805, 0XFFFFC005,
/* DRAM - single write. (offset 18 in upm RAM)
*/
0xCFFF0004, 0x0FFF0404, 0x0CFF0C00, 0x13FF4804,
0xFFFFC004, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* DRAM - burst write. (offset 20 in upm RAM)
*/
0xCFFF0004, 0x0FFF0404, 0x0CFF0C00, 0x03FF0C0C,
0x0CFF0C00, 0x03FF0C0C, 0x0CFF0C00, 0x03FF0C0C,
0x0CFF0C00, 0x13FF4804, 0xFFFFC004, 0xFFFFC005,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* refresh (offset 30 in upm RAM)
*/
0xFCFFC004, 0xC0FFC004, 0x01FFC004, 0x0FFFC004,
0x1FFFC004, 0xFFFFC004, 0xFFFFC005, 0xFFFFC005,
0xFFFFC005, 0xFFFFC005, 0xFFFFC005, 0xFFFFC005,
/* exception. (offset 3c in upm RAM)
*/
0xFFFFC007, 0xFFFFC007, 0xFFFFC007, 0xFFFFC007,
};
/* ------------------------------------------------------------------------- */
static unsigned int get_reffreq(void);
static unsigned int board_get_cpufreq(void);
void mbx_init (void)
{
volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8xx_t *memctl = &immr->im_memctl;
ulong speed, refclock, plprcr, sccr;
ulong br0_32 = memctl->memc_br0 & 0x400;
/* real-time clock status and control register */
immr->im_sitk.sitk_rtcsck = KAPWR_KEY;
immr->im_sit.sit_rtcsc = 0x00C3;
/* SIEL and SIMASK Registers (see MBX PRG 2-3) */
immr->im_siu_conf.sc_simask = 0x00000000;
immr->im_siu_conf.sc_siel = 0xAAAA0000;
immr->im_siu_conf.sc_tesr = 0xFFFFFFFF;
/*
* Prepare access to i2c bus. The MBX offers 3 devices on the i2c bus:
* 1. Vital Product Data (contains clock speeds, MAC address etc, see vpd.h)
* 2. RAM Specs (see dimm.h)
* 2. DIMM Specs (see dimm.h)
*/
vpd_init ();
/* system clock and reset control register */
immr->im_clkrstk.cark_sccrk = KAPWR_KEY;
sccr = immr->im_clkrst.car_sccr;
sccr &= SCCR_MASK;
sccr |= CONFIG_SYS_SCCR;
immr->im_clkrst.car_sccr = sccr;
speed = board_get_cpufreq ();
refclock = get_reffreq ();
#if ((CONFIG_SYS_PLPRCR & PLPRCR_MF_MSK) != 0)
plprcr = CONFIG_SYS_PLPRCR;
#else
plprcr = immr->im_clkrst.car_plprcr;
plprcr &= PLPRCR_MF_MSK; /* isolate MF field */
plprcr |= CONFIG_SYS_PLPRCR; /* reset control bits */
#endif
#ifdef CONFIG_SYS_USE_OSCCLK /* See doc/README.MBX ! */
plprcr |= ((speed + refclock / 2) / refclock - 1) << 20;
#endif
immr->im_clkrstk.cark_plprcrk = KAPWR_KEY;
immr->im_clkrst.car_plprcr = plprcr;
/*
* preliminary setup of memory controller:
* - map Flash, otherwise configuration/status
* registers won't be accessible when read
* by board_init_f.
* - map NVRAM and configuation/status registers.
* - map pci registers.
* - DON'T map ram yet, this is done in initdram().
*/
switch (speed / 1000000) {
case 40:
memctl->memc_br0 = 0xFE000000 | br0_32 | 1;
memctl->memc_or0 = 0xFF800930;
memctl->memc_or4 = CONFIG_SYS_NVRAM_OR | 0x920;
memctl->memc_br4 = CONFIG_SYS_NVRAM_BASE | 0x401;
break;
case 50:
memctl->memc_br0 = 0xFE000000 | br0_32 | 1;
memctl->memc_or0 = 0xFF800940;
memctl->memc_or4 = CONFIG_SYS_NVRAM_OR | 0x930;
memctl->memc_br4 = CONFIG_SYS_NVRAM_BASE | 0x401;
break;
default:
hang ();
break;
}
#ifdef CONFIG_USE_PCI
memctl->memc_or5 = CONFIG_SYS_PCIMEM_OR;
memctl->memc_br5 = CONFIG_SYS_PCIMEM_BASE | 0x001;
memctl->memc_or6 = CONFIG_SYS_PCIBRIDGE_OR;
memctl->memc_br6 = CONFIG_SYS_PCIBRIDGE_BASE | 0x001;
#endif
/*
* FIXME: I do not understand why I have to call this to
* initialise the control register here before booting from
* the PCMCIA card but if I do not the Linux kernel falls
* over in a big heap. If you can answer this question I
* would like to know about it.
*/
board_ether_init();
}
void board_serial_init (void)
{
MBX_CSR1 &= ~(CSR1_COM1EN | CSR1_XCVRDIS);
}
void board_ether_init (void)
{
MBX_CSR1 &= ~(CSR1_EAEN | CSR1_ELEN);
MBX_CSR1 |= CSR1_ETEN | CSR1_TPEN | CSR1_FDDIS;
}
static unsigned int board_get_cpufreq (void)
{
#ifndef CONFIG_8xx_GCLK_FREQ
vpd_packet_t *packet;
packet = vpd_find_packet (VPD_PID_ICS);
return *((ulong *) packet->data);
#else
return((unsigned int)CONFIG_8xx_GCLK_FREQ );
#endif /* CONFIG_8xx_GCLK_FREQ */
}
static unsigned int get_reffreq (void)
{
vpd_packet_t *packet;
packet = vpd_find_packet (VPD_PID_RCS);
return *((ulong *) packet->data);
}
static void board_get_enetaddr(uchar *addr)
{
int i;
vpd_packet_t *packet;
packet = vpd_find_packet (VPD_PID_EA);
for (i = 0; i < 6; i++)
addr[i] = packet->data[i];
}
int misc_init_r(void)
{
uchar enetaddr[6];
if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
board_get_enetaddr(enetaddr);
eth_putenv_enetaddr("ethaddr", enetaddr);
}
return 0;
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
vpd_packet_t *packet;
int i;
const char *const fmt =
"\n *** Warning: Low Battery Status - %s Battery ***";
puts ("Board: ");
packet = vpd_find_packet (VPD_PID_PID);
for (i = 0; i < packet->size; i++) {
serial_putc (packet->data[i]);
}
packet = vpd_find_packet (VPD_PID_MT);
for (i = 0; i < packet->size; i++) {
serial_putc (packet->data[i]);
}
serial_putc ('(');
packet = vpd_find_packet (VPD_PID_FAN);
for (i = 0; i < packet->size; i++) {
serial_putc (packet->data[i]);
}
serial_putc (')');
if (!(MBX_CSR2 & SR2_BATGD))
printf (fmt, "On-Board");
if (!(MBX_CSR2 & SR2_NVBATGD))
printf (fmt, "NVRAM");
serial_putc ('\n');
return (0);
}
/* ------------------------------------------------------------------------- */
static ulong get_ramsize (dimm_t * dimm)
{
ulong size = 0;
if (dimm->fmt == 1 || dimm->fmt == 2 || dimm->fmt == 3
|| dimm->fmt == 4) {
size = (1 << (dimm->n_row + dimm->n_col)) * dimm->n_banks *
((dimm->data_w_hi << 8 | dimm->data_w_lo) / 8);
}
return size;
}
phys_size_t initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
unsigned long ram_sz = 0;
unsigned long dimm_sz = 0;
dimm_t vpd_dimm, vpd_dram;
unsigned int speed = board_get_cpufreq () / 1000000;
if (vpd_read (0xa2, (uchar *) & vpd_dimm, sizeof (vpd_dimm), 0) > 0) {
dimm_sz = get_ramsize (&vpd_dimm);
}
if (vpd_read (0xa6, (uchar *) & vpd_dram, sizeof (vpd_dram), 0) > 0) {
ram_sz = get_ramsize (&vpd_dram);
}
/*
* Only initialize memory controller when running from FLASH.
* When running from RAM, don't touch it.
*/
if ((ulong) initdram & 0xff000000) {
ulong dimm_bank;
ulong br0_32 = memctl->memc_br0 & 0x400;
switch (speed) {
case 40:
upmconfig (UPMA, (uint *) sdram_table_40,
sizeof (sdram_table_40) / sizeof (uint));
memctl->memc_mptpr = 0x0200;
memctl->memc_mamr = dimm_sz ? 0x06801000 : 0x13801000;
memctl->memc_or7 = 0xff800930;
memctl->memc_br7 = 0xfc000000 | (br0_32 ^ br0_32) | 1;
break;
case 50:
upmconfig (UPMA, (uint *) sdram_table_50,
sizeof (sdram_table_50) / sizeof (uint));
memctl->memc_mptpr = 0x0200;
memctl->memc_mamr = dimm_sz ? 0x08801000 : 0x1880100;
memctl->memc_or7 = 0xff800940;
memctl->memc_br7 = 0xfc000000 | (br0_32 ^ br0_32) | 1;
break;
default:
hang ();
break;
}
/* now map ram and dimm, largest one first */
dimm_bank = dimm_sz / 2;
if (!dimm_sz) {
memctl->memc_or1 = ~(ram_sz - 1) | 0x400;
memctl->memc_br1 = CONFIG_SYS_SDRAM_BASE | 0x81;
memctl->memc_br2 = 0;
memctl->memc_br3 = 0;
} else if (ram_sz > dimm_bank) {
memctl->memc_or1 = ~(ram_sz - 1) | 0x400;
memctl->memc_br1 = CONFIG_SYS_SDRAM_BASE | 0x81;
memctl->memc_or2 = ~(dimm_bank - 1) | 0x400;
memctl->memc_br2 = (CONFIG_SYS_SDRAM_BASE + ram_sz) | 0x81;
memctl->memc_or3 = ~(dimm_bank - 1) | 0x400;
memctl->memc_br3 = (CONFIG_SYS_SDRAM_BASE + ram_sz + dimm_bank) \
| 0x81;
} else {
memctl->memc_or2 = ~(dimm_bank - 1) | 0x400;
memctl->memc_br2 = CONFIG_SYS_SDRAM_BASE | 0x81;
memctl->memc_or3 = ~(dimm_bank - 1) | 0x400;
memctl->memc_br3 = (CONFIG_SYS_SDRAM_BASE + dimm_bank) | 0x81;
memctl->memc_or1 = ~(ram_sz - 1) | 0x400;
memctl->memc_br1 = (CONFIG_SYS_SDRAM_BASE + dimm_sz) | 0x81;
}
}
return ram_sz + dimm_sz;
}
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