diff options
author | Kumar Gala <galak@kernel.crashing.org> | 2007-11-29 10:16:18 -0600 |
---|---|---|
committer | Kumar Gala <galak@kernel.crashing.org> | 2007-12-11 22:34:20 -0600 |
commit | c2d943ffbfd3359b3b45d177b437379d2cb86fbf (patch) | |
tree | 689e92672dafad5bacc6483059ebb30b75f07659 /board/mpc8540ads/mpc8540ads.c | |
parent | 870ceac5b3a3486c109396e005af81ae762b5710 (diff) | |
download | u-boot-imx-c2d943ffbfd3359b3b45d177b437379d2cb86fbf.zip u-boot-imx-c2d943ffbfd3359b3b45d177b437379d2cb86fbf.tar.gz u-boot-imx-c2d943ffbfd3359b3b45d177b437379d2cb86fbf.tar.bz2 |
Move the MPC8540 ADS board under board/freescale.
Minor path corrections needed to ensure buildability.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'board/mpc8540ads/mpc8540ads.c')
-rw-r--r-- | board/mpc8540ads/mpc8540ads.c | 348 |
1 files changed, 0 insertions, 348 deletions
diff --git a/board/mpc8540ads/mpc8540ads.c b/board/mpc8540ads/mpc8540ads.c deleted file mode 100644 index 35f5eea..0000000 --- a/board/mpc8540ads/mpc8540ads.c +++ /dev/null @@ -1,348 +0,0 @@ - /* - * Copyright 2004 Freescale Semiconductor. - * (C) Copyright 2002,2003, Motorola Inc. - * Xianghua Xiao, (X.Xiao@motorola.com) - * - * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.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 <pci.h> -#include <asm/processor.h> -#include <asm/immap_85xx.h> -#include <spd.h> -#include <libfdt.h> -#include <fdt_support.h> - -#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) -extern void ddr_enable_ecc(unsigned int dram_size); -#endif - -extern long int spd_sdram(void); - -void local_bus_init(void); -void sdram_init(void); -long int fixed_sdram(void); - - -int board_early_init_f (void) -{ - return 0; -} - -int checkboard (void) -{ - puts("Board: ADS\n"); - -#ifdef CONFIG_PCI - printf(" PCI1: 32 bit, %d MHz (compiled)\n", - CONFIG_SYS_CLK_FREQ / 1000000); -#else - printf(" PCI1: disabled\n"); -#endif - - /* - * Initialize local bus. - */ - local_bus_init(); - - return 0; -} - - -long int -initdram(int board_type) -{ - long dram_size = 0; - extern long spd_sdram (void); - - puts("Initializing\n"); - -#if defined(CONFIG_DDR_DLL) - { - volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); - uint temp_ddrdll = 0; - - /* - * Work around to stabilize DDR DLL - */ - temp_ddrdll = gur->ddrdllcr; - gur->ddrdllcr = ((temp_ddrdll & 0xff) << 16) | 0x80000000; - asm("sync;isync;msync"); - } -#endif - -#if defined(CONFIG_SPD_EEPROM) - dram_size = spd_sdram (); -#else - dram_size = fixed_sdram (); -#endif - -#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) - /* - * Initialize and enable DDR ECC. - */ - ddr_enable_ecc(dram_size); -#endif - - /* - * Initialize SDRAM. - */ - sdram_init(); - - puts(" DDR: "); - return dram_size; -} - - -/* - * Initialize Local Bus - */ - -void -local_bus_init(void) -{ - volatile ccsr_gur_t *gur = (void *)(CFG_MPC85xx_GUTS_ADDR); - volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR); - - uint clkdiv; - uint lbc_hz; - sys_info_t sysinfo; - - /* - * Errata LBC11. - * Fix Local Bus clock glitch when DLL is enabled. - * - * If localbus freq is < 66Mhz, DLL bypass mode must be used. - * If localbus freq is > 133Mhz, DLL can be safely enabled. - * Between 66 and 133, the DLL is enabled with an override workaround. - */ - - get_sys_info(&sysinfo); - clkdiv = lbc->lcrr & 0x0f; - lbc_hz = sysinfo.freqSystemBus / 1000000 / clkdiv; - - if (lbc_hz < 66) { - lbc->lcrr = CFG_LBC_LCRR | 0x80000000; /* DLL Bypass */ - - } else if (lbc_hz >= 133) { - lbc->lcrr = CFG_LBC_LCRR & (~0x80000000); /* DLL Enabled */ - - } else { - /* - * On REV1 boards, need to change CLKDIV before enable DLL. - * Default CLKDIV is 8, change it to 4 temporarily. - */ - uint pvr = get_pvr(); - uint temp_lbcdll = 0; - - if (pvr == PVR_85xx_REV1) { - /* FIXME: Justify the high bit here. */ - lbc->lcrr = 0x10000004; - } - - lbc->lcrr = CFG_LBC_LCRR & (~0x80000000); /* DLL Enabled */ - udelay(200); - - /* - * Sample LBC DLL ctrl reg, upshift it to set the - * override bits. - */ - temp_lbcdll = gur->lbcdllcr; - gur->lbcdllcr = (((temp_lbcdll & 0xff) << 16) | 0x80000000); - asm("sync;isync;msync"); - } -} - - -/* - * Initialize SDRAM memory on the Local Bus. - */ - -void -sdram_init(void) -{ - volatile ccsr_lbc_t *lbc = (void *)(CFG_MPC85xx_LBC_ADDR); - uint *sdram_addr = (uint *)CFG_LBC_SDRAM_BASE; - - puts(" SDRAM: "); - print_size (CFG_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); - - /* - * Setup SDRAM Base and Option Registers - */ - lbc->or2 = CFG_OR2_PRELIM; - lbc->br2 = CFG_BR2_PRELIM; - lbc->lbcr = CFG_LBC_LBCR; - asm("msync"); - - lbc->lsrt = CFG_LBC_LSRT; - lbc->mrtpr = CFG_LBC_MRTPR; - asm("sync"); - - /* - * Configure the SDRAM controller. - */ - lbc->lsdmr = CFG_LBC_LSDMR_1; - asm("sync"); - *sdram_addr = 0xff; - ppcDcbf((unsigned long) sdram_addr); - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_2; - asm("sync"); - *sdram_addr = 0xff; - ppcDcbf((unsigned long) sdram_addr); - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_3; - asm("sync"); - *sdram_addr = 0xff; - ppcDcbf((unsigned long) sdram_addr); - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_4; - asm("sync"); - *sdram_addr = 0xff; - ppcDcbf((unsigned long) sdram_addr); - udelay(100); - - lbc->lsdmr = CFG_LBC_LSDMR_5; - asm("sync"); - *sdram_addr = 0xff; - ppcDcbf((unsigned long) sdram_addr); - udelay(100); -} - - -#if defined(CFG_DRAM_TEST) -int testdram (void) -{ - uint *pstart = (uint *) CFG_MEMTEST_START; - uint *pend = (uint *) CFG_MEMTEST_END; - uint *p; - - printf("SDRAM test phase 1:\n"); - for (p = pstart; p < pend; p++) - *p = 0xaaaaaaaa; - - for (p = pstart; p < pend; p++) { - if (*p != 0xaaaaaaaa) { - printf ("SDRAM test fails at: %08x\n", (uint) p); - return 1; - } - } - - printf("SDRAM test phase 2:\n"); - for (p = pstart; p < pend; p++) - *p = 0x55555555; - - for (p = pstart; p < pend; p++) { - if (*p != 0x55555555) { - printf ("SDRAM test fails at: %08x\n", (uint) p); - return 1; - } - } - - printf("SDRAM test passed.\n"); - return 0; -} -#endif - - -#if !defined(CONFIG_SPD_EEPROM) -/************************************************************************* - * fixed sdram init -- doesn't use serial presence detect. - ************************************************************************/ -long int fixed_sdram (void) -{ - #ifndef CFG_RAMBOOT - volatile ccsr_ddr_t *ddr= (void *)(CFG_MPC85xx_DDR_ADDR); - - ddr->cs0_bnds = CFG_DDR_CS0_BNDS; - ddr->cs0_config = CFG_DDR_CS0_CONFIG; - ddr->timing_cfg_1 = CFG_DDR_TIMING_1; - ddr->timing_cfg_2 = CFG_DDR_TIMING_2; - ddr->sdram_mode = CFG_DDR_MODE; - ddr->sdram_interval = CFG_DDR_INTERVAL; - #if defined (CONFIG_DDR_ECC) - ddr->err_disable = 0x0000000D; - ddr->err_sbe = 0x00ff0000; - #endif - asm("sync;isync;msync"); - udelay(500); - #if defined (CONFIG_DDR_ECC) - /* Enable ECC checking */ - ddr->sdram_cfg = (CFG_DDR_CONTROL | 0x20000000); - #else - ddr->sdram_cfg = CFG_DDR_CONTROL; - #endif - asm("sync; isync; msync"); - udelay(500); - #endif - return CFG_SDRAM_SIZE * 1024 * 1024; -} -#endif /* !defined(CONFIG_SPD_EEPROM) */ - - -#if defined(CONFIG_PCI) -/* - * Initialize PCI Devices, report devices found. - */ - - -static struct pci_controller hose; - -#endif /* CONFIG_PCI */ - - -void -pci_init_board(void) -{ -#ifdef CONFIG_PCI - pci_mpc85xx_init(&hose); -#endif /* CONFIG_PCI */ -} - - -#if defined(CONFIG_OF_BOARD_SETUP) -void -ft_board_setup(void *blob, bd_t *bd) -{ - int node, tmp[2]; - const char *path; - - ft_cpu_setup(blob, bd); - - node = fdt_path_offset(blob, "/aliases"); - tmp[0] = 0; - if (node >= 0) { -#ifdef CONFIG_PCI - path = fdt_getprop(blob, node, "pci0", NULL); - if (path) { - tmp[1] = hose.last_busno - hose.first_busno; - do_fixup_by_path(blob, path, "bus-range", &tmp, 8, 1); - } -#endif - } -} -#endif |