diff options
author | Wolfgang Denk <wd@denx.de> | 2010-07-05 22:46:33 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-07-17 20:47:08 +0200 |
commit | 0fe247b973d9b8f7e2c04cc159fcdd2e64591e55 (patch) | |
tree | 952f8896b9a63dfd28ecfb693e65ae0992a58abd /board/gth/gth.c | |
parent | b6c208ab1ebc2ac01e0029b8456210617ff67156 (diff) | |
download | u-boot-imx-0fe247b973d9b8f7e2c04cc159fcdd2e64591e55.zip u-boot-imx-0fe247b973d9b8f7e2c04cc159fcdd2e64591e55.tar.gz u-boot-imx-0fe247b973d9b8f7e2c04cc159fcdd2e64591e55.tar.bz2 |
Drop support for GTH board
The board maintainer states:
The GTH board is obsolete and has not been manufactured for
several years.
To my knowledge, no recent U-Boot build has been tested on that
card.
So drop support for this board.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Thomas Lange <thomas@corelatus.se>
Acked-by: Thomas Lange<thomas@corelatus.se>
Diffstat (limited to 'board/gth/gth.c')
-rw-r--r-- | board/gth/gth.c | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/board/gth/gth.c b/board/gth/gth.c deleted file mode 100644 index 4399db2..0000000 --- a/board/gth/gth.c +++ /dev/null @@ -1,595 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Adapted from FADS and other board config files to GTH by thomas@corelatus.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. - * - * 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 <config.h> -#include <watchdog.h> -#include <mpc8xx.h> -#include "ee_access.h" -#include "ee_dev.h" - -#ifdef CONFIG_BDM -#undef printf -#define printf(a,...) /* nothing */ -#endif - - -int checkboard (void) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - int Id = 0; - int Rev = 0; - u32 Pbdat; - - puts ("Board: "); - - /* Turn on leds and setup for reading rev and id */ - -#define PB_OUTS (PB_BLUE_LED|PB_ID_GND) -#define PB_INS (PB_ID_0|PB_ID_1|PB_ID_2|PB_ID_3|PB_REV_1|PB_REV_0) - - immap->im_cpm.cp_pbpar &= ~(PB_OUTS | PB_INS); - - immap->im_cpm.cp_pbdir &= ~PB_INS; - - immap->im_cpm.cp_pbdir |= PB_OUTS; - immap->im_cpm.cp_pbodr |= PB_OUTS; - immap->im_cpm.cp_pbdat &= ~PB_OUTS; - - /* Hold 100 Mbit in reset until fpga is loaded */ - immap->im_ioport.iop_pcpar &= ~PC_ENET100_RESET; - immap->im_ioport.iop_pcdir |= PC_ENET100_RESET; - immap->im_ioport.iop_pcso &= ~PC_ENET100_RESET; - immap->im_ioport.iop_pcdat &= ~PC_ENET100_RESET; - - /* Turn on front led to show that we are alive */ - immap->im_ioport.iop_papar &= ~PA_FRONT_LED; - immap->im_ioport.iop_padir |= PA_FRONT_LED; - immap->im_ioport.iop_paodr |= PA_FRONT_LED; - immap->im_ioport.iop_padat &= ~PA_FRONT_LED; - - Pbdat = immap->im_cpm.cp_pbdat; - - if (!(Pbdat & PB_ID_0)) - Id += 1; - if (!(Pbdat & PB_ID_1)) - Id += 2; - if (!(Pbdat & PB_ID_2)) - Id += 4; - if (!(Pbdat & PB_ID_3)) - Id += 8; - - if (Pbdat & PB_REV_0) - Rev += 1; - if (Pbdat & PB_REV_1) - Rev += 2; - - /* Turn ID off since we dont need it anymore */ - immap->im_cpm.cp_pbdat |= PB_ID_GND; - - printf ("GTH board, rev %d, id=0x%01x\n", Rev, Id); - return 0; -} - -#define _NOT_USED_ 0xffffffff -const uint sdram_table[] = { - /* Single read, offset 0 */ - 0x0f3dfc04, 0x0eefbc04, 0x01bf7c04, 0x0feafc00, - 0x1fb5fc45, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Burst read, Offset 0x8, 4 reads */ - 0x0f3dfc04, 0x0eefbc04, 0x00bf7c04, 0x00ffec00, - 0x00fffc00, 0x01eafc00, 0x1fb5fc00, 0xfffffc45, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Not used part of burst read is used for MRS, Offset 0x14 */ - 0xefeabc34, 0x1fb57c34, 0xfffffc05, _NOT_USED_, - /* _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, */ - - /* Single write, Offset 0x18 */ - 0x0f3dfc04, 0x0eebbc00, 0x01a27c04, 0x1fb5fc45, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Burst write, Offset 0x20. 4 writes */ - 0x0f3dfc04, 0x0eebbc00, 0x00b77c00, 0x00fffc00, - 0x00fffc00, 0x01eafc04, 0x1fb5fc45, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Not used part of burst write is used for precharge, Offset 0x2C */ - 0x0ff5fc04, 0xfffffc05, _NOT_USED_, _NOT_USED_, - /* _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, */ - - /* Period timer service. Offset 0x30. Refresh. Wait at least 70 ns after refresh command */ - 0x1ffd7c04, 0xfffffc04, 0xfffffc04, 0xfffffc05, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Exception, Offset 0x3C */ - 0xfffffc04, 0xfffffc05, _NOT_USED_, _NOT_USED_ -}; - -const uint fpga_table[] = { - /* Single read, offset 0 */ - 0x0cffec04, 0x00ffec04, 0x00ffec04, 0x00ffec04, - 0x00fffc04, 0x00fffc00, 0x00ffec04, 0xffffec05, - - /* Burst read, Offset 0x8 */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Single write, Offset 0x18 */ - 0x0cffec04, 0x00ffec04, 0x00ffec04, 0x00ffec04, - 0x00fffc04, 0x00fffc00, 0x00ffec04, 0xffffec05, - - /* Burst write, Offset 0x20. */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Period timer service. Offset 0x30. */ - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_, - - /* Exception, Offset 0x3C */ - 0xfffffc04, 0xfffffc05, _NOT_USED_, _NOT_USED_ -}; - -int _initsdram (uint base, uint * noMbytes) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *mc = &immap->im_memctl; - volatile u32 *memptr; - - mc->memc_mptpr = MPTPR_PTP_DIV16; /* (16-17) */ - - /* SDRAM in UPMA - - GPL_0 is connected instead of A19 to SDRAM. - According to table 16-17, AMx should be 001, i.e. type 1 - and GPL_0 should hold address A10 when multiplexing */ - - mc->memc_mamr = (0x2E << MAMR_PTA_SHIFT) | MAMR_PTAE | MAMR_AMA_TYPE_1 | MAMR_G0CLA_A10 | MAMR_RLFA_1X | MAMR_WLFA_1X | MAMR_TLFA_1X; /* (16-13) */ - - upmconfig (UPMA, (uint *) sdram_table, - sizeof (sdram_table) / sizeof (uint)); - - /* Perform init of sdram ( Datasheet Page 9 ) - Precharge */ - mc->memc_mcr = 0x8000212C; /* run upm a at 0x2C (16-15) */ - - /* Run 2 refresh cycles */ - mc->memc_mcr = 0x80002130; /* run upm a at 0x30 (16-15) */ - mc->memc_mcr = 0x80002130; /* run upm a at 0x30 (16-15) */ - - /* Set Mode register */ - mc->memc_mar = 0x00000088; /* set mode register (address) to 0x022 (16-17) */ - /* Lower 2 bits are not connected to chip */ - mc->memc_mcr = 0x80002114; /* run upm a at 0x14 (16-15) */ - - /* CS1, base 0x0000000 - 64 Mbyte, use UPM A */ - mc->memc_or1 = 0xfc000000 | OR_CSNT_SAM; - mc->memc_br1 = BR_MS_UPMA | BR_V; /* SDRAM base always 0 */ - - /* Test if we really have 64 MB SDRAM */ - memptr = (u32 *) 0; - *memptr = 0; - - memptr = (u32 *) 0x2000000; /* First u32 in upper 32 MB */ - *memptr = 0x12345678; - - memptr = (u32 *) 0; - if (*memptr == 0x12345678) { - /* Wrapped, only have 32 MB */ - mc->memc_or1 = 0xfe000000 | OR_CSNT_SAM; - *noMbytes = 32; - } else { - /* 64 MB */ - *noMbytes = 64; - } - - /* Setup FPGA in UPMB */ - upmconfig (UPMB, (uint *) fpga_table, - sizeof (fpga_table) / sizeof (uint)); - - /* Enable UPWAITB */ - mc->memc_mbmr = MBMR_GPL_B4DIS; /* (16-13) */ - - /* CS2, base FPGA_2_BASE - 4 MByte, use UPM B 32 Bit */ - mc->memc_or2 = 0xffc00000 | OR_BI; - mc->memc_br2 = FPGA_2_BASE | BR_MS_UPMB | BR_V; - - /* CS3, base FPGA_3_BASE - 4 MByte, use UPM B 16 bit */ - mc->memc_or3 = 0xffc00000 | OR_BI; - mc->memc_br3 = FPGA_3_BASE | BR_MS_UPMB | BR_V | BR_PS_16; - - return 0; -} - -/* ------------------------------------------------------------------------- */ - -void _sdramdisable (void) -{ - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - volatile memctl8xx_t *memctl = &immap->im_memctl; - - memctl->memc_br1 = 0x00000000; - - /* maybe we should turn off upmb here or something */ -} - -/* ------------------------------------------------------------------------- */ - -int initsdram (uint base, uint * noMbytes) -{ - *noMbytes = 32; - -#ifdef CONFIG_START_IN_RAM - /* SDRAM is already setup. Dont touch it */ - return 0; -#else - - if (!_initsdram (base, noMbytes)) { - - return 0; - } else { - _sdramdisable (); - - return -1; - } -#endif -} - -phys_size_t initdram (int board_type) -{ - u32 *i; - u32 j; - u32 k; - - /* GTH only have SDRAM */ - uint sdramsz; - - if (!initsdram (0x00000000, &sdramsz)) { - printf ("(%u MB SDRAM) ", sdramsz); - } else { - /******************************** - *SDRAM ERROR, HALT PROCESSOR - *********************************/ - printf ("SDRAM ERROR\n"); - while (1); - } - -#ifndef CONFIG_START_IN_RAM - -#define U32_S ((sdramsz<<18)-1) - -#if 1 - /* Do a simple memory test */ - for (i = (u32 *) 0, j = 0; (u32) i < U32_S; i += 2, j += 2) { - *i = j + (j << 17); - *(i + 1) = ~(j + (j << 18)); - } - - WATCHDOG_RESET (); - - printf ("."); - - for (i = (u32 *) 0, j = 0; (u32) i < U32_S; i += 2, j += 2) { - k = *i; - if (k != (j + (j << 17))) { - printf ("Mem test error, i=0x%x, 0x%x\n, 0x%x", (u32) i, j, k); - while (1); - } - k = *(i + 1); - if (k != ~(j + (j << 18))) { - printf ("Mem test error(+1), i=0x%x, 0x%x\n, 0x%x", - (u32) i + 1, j, k); - while (1); - } - } -#endif - - WATCHDOG_RESET (); - - /* Clear memory */ - for (i = (u32 *) 0; (u32) i < U32_S; i++) { - *i = 0; - } -#endif /* !start in ram */ - - WATCHDOG_RESET (); - - return (sdramsz << 20); -} - -#define POWER_OFFSET 0xF0000 -#define SW_WATCHDOG_REASON 13 - -#define BOOTDATA_OFFSET 0xF8000 -#define MAX_ATTEMPTS 5 - -#define FAILSAFE_BOOT 1 -#define SYSTEM_BOOT 2 - -#define WRITE_FLASH16(a, d) \ -do \ -{ \ - *((volatile u16 *) (a)) = (d);\ - } while(0) - -static void write_bootdata (volatile u16 * addr, u8 System, u8 Count) -{ - u16 data; - volatile u16 *flash = (u16 *) (CONFIG_SYS_FLASH_BASE); - - if ((System != FAILSAFE_BOOT) & (System != SYSTEM_BOOT)) { - printf ("Invalid system data %u, setting failsafe\n", System); - System = FAILSAFE_BOOT; - } - - if ((Count < 1) | (Count > MAX_ATTEMPTS)) { - printf ("Invalid boot count %u, setting 1\n", Count); - Count = 1; - } - - if (System == FAILSAFE_BOOT) { - printf ("Setting failsafe boot in flash\n"); - } else { - printf ("Setting system boot in flash\n"); - } - printf ("Boot attempt %d\n", Count); - - data = (System << 8) | Count; - /* AMD 16 bit */ - WRITE_FLASH16 (&flash[0x555], 0xAAAA); - WRITE_FLASH16 (&flash[0x2AA], 0x5555); - WRITE_FLASH16 (&flash[0x555], 0xA0A0); - - WRITE_FLASH16 (addr, data); -} - -static void maybe_update_restart_reason (volatile u32 * addr32) -{ - /* Update addr if sw wd restart */ - volatile u16 *flash = (u16 *) (CONFIG_SYS_FLASH_BASE); - volatile u16 *addr_16 = (u16 *) addr32; - u32 rsr; - - /* Dont reset register now */ - rsr = ((volatile immap_t *) CONFIG_SYS_IMMR)->im_clkrst.car_rsr; - - rsr >>= 24; - - if (rsr & 0x10) { - /* Was really a sw wd restart, update reason */ - - printf ("Last restart by software watchdog\n"); - - /* AMD 16 bit */ - WRITE_FLASH16 (&flash[0x555], 0xAAAA); - WRITE_FLASH16 (&flash[0x2AA], 0x5555); - WRITE_FLASH16 (&flash[0x555], 0xA0A0); - - WRITE_FLASH16 (addr_16, 0); - - udelay (1000); - - WATCHDOG_RESET (); - - /* AMD 16 bit */ - WRITE_FLASH16 (&flash[0x555], 0xAAAA); - WRITE_FLASH16 (&flash[0x2AA], 0x5555); - WRITE_FLASH16 (&flash[0x555], 0xA0A0); - - WRITE_FLASH16 (addr_16 + 1, SW_WATCHDOG_REASON); - - } -} - -static void check_restart_reason (void) -{ - /* Update restart reason if sw watchdog was - triggered */ - - int i; - volatile u32 *raddr; - - raddr = (u32 *) (CONFIG_SYS_FLASH_BASE + POWER_OFFSET); - - if (*raddr == 0xFFFFFFFF) { - /* Nothing written */ - maybe_update_restart_reason (raddr); - } else { - /* Search for latest written reason */ - i = 0; - while ((*(raddr + 2) != 0xFFFFFFFF) & (i < 2000)) { - raddr += 2; - i++; - } - if (i >= 2000) { - /* Whoa, dont write any more */ - printf ("*** No free restart reason found ***\n"); - } else { - /* Check if written */ - if (*raddr == 0) { - /* Erased by kernel, no new reason written */ - maybe_update_restart_reason (raddr + 2); - } - } - } -} - -static void check_boot_tries (void) -{ - /* Count the number of boot attemps - switch system if too many */ - - int i; - volatile u16 *addr; - volatile u16 data; - int failsafe = 1; - u8 system; - u8 count; - - addr = (u16 *) (CONFIG_SYS_FLASH_BASE + BOOTDATA_OFFSET); - - if (*addr == 0xFFFF) { - printf ("*** No bootdata exists. ***\n"); - write_bootdata (addr, FAILSAFE_BOOT, 1); - } else { - /* Search for latest written bootdata */ - i = 0; - while ((*(addr + 1) != 0xFFFF) & (i < 8000)) { - addr++; - i++; - } - if (i >= 8000) { - /* Whoa, dont write any more */ - printf ("*** No bootdata found. Not updating flash***\n"); - } else { - /* See how many times we have tried to boot real system */ - data = *addr; - system = data >> 8; - count = data & 0xFF; - if ((system != SYSTEM_BOOT) & (system != FAILSAFE_BOOT)) { - printf ("*** Wrong system %d\n", system); - system = FAILSAFE_BOOT; - count = 1; - } else { - switch (count) { - case 0: - case 1: - case 2: - case 3: - case 4: - /* Try same system again if needed */ - count++; - break; - - case 5: - /* Switch system and reset tries */ - count = 1; - system = 3 - system; - printf ("***Too many boot attempts, switching system***\n"); - break; - default: - /* Switch system, start over and hope it works */ - printf ("***Unexpected data on addr 0x%x, %u***\n", - (u32) addr, data); - count = 1; - system = 3 - system; - } - } - write_bootdata (addr + 1, system, count); - if (system == SYSTEM_BOOT) { - failsafe = 0; - } - } - } - if (failsafe) { - printf ("Booting failsafe system\n"); - setenv ("bootargs", "panic=1 root=/dev/hda7"); - setenv ("bootcmd", "disk 100000 0:5;bootm 100000"); - } else { - printf ("Using normal system\n"); - setenv ("bootargs", "panic=1 root=/dev/hda4"); - setenv ("bootcmd", "disk 100000 0:2;bootm 100000"); - } -} - -int misc_init_r (void) -{ - u8 Rx[80]; - u8 Tx[5]; - int page; - int read = 0; - volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR; - - /* Kill fpga */ - immap->im_ioport.iop_papar &= ~(PA_FL_CONFIG | PA_FL_CE); - immap->im_ioport.iop_padir |= (PA_FL_CONFIG | PA_FL_CE); - immap->im_ioport.iop_paodr &= ~(PA_FL_CONFIG | PA_FL_CE); - - /* Enable fpga, active low */ - immap->im_ioport.iop_padat &= ~PA_FL_CE; - - /* Start configuration */ - immap->im_ioport.iop_padat &= ~PA_FL_CONFIG; - udelay (2); - - immap->im_ioport.iop_padat |= (PA_FL_CONFIG | PA_FL_CE); - - /* Check if we need to boot failsafe system */ - check_boot_tries (); - - /* Check if we need to update restart reason */ - check_restart_reason (); - - if (ee_init_data ()) { - printf ("EEPROM init failed\n"); - return (0); - } - - /* Read the pages where ethernet address is stored */ - - for (page = EE_USER_PAGE_0; page <= EE_USER_PAGE_0 + 2; page++) { - /* Copy from nvram to scratchpad */ - Tx[0] = RECALL_MEMORY; - Tx[1] = page; - if (ee_do_command (Tx, 2, NULL, 0, TRUE)) { - printf ("EE user page %d recall failed\n", page); - return (0); - } - - Tx[0] = READ_SCRATCHPAD; - if (ee_do_command (Tx, 2, Rx + read, 9, TRUE)) { - printf ("EE user page %d read failed\n", page); - return (0); - } - /* Crc in 9:th byte */ - if (!ee_crc_ok (Rx + read, 8, *(Rx + read + 8))) { - printf ("EE read failed, page %d. CRC error\n", page); - return (0); - } - read += 8; - } - - /* Add eos after eth addr */ - Rx[17] = 0; - - printf ("Ethernet addr read from eeprom: %s\n\n", Rx); - - if ((Rx[2] != ':') | - (Rx[5] != ':') | - (Rx[8] != ':') | (Rx[11] != ':') | (Rx[14] != ':')) { - printf ("*** ethernet addr invalid, using default ***\n"); - } else { - setenv ("ethaddr", (char *)Rx); - } - return (0); -} |