--- /dev/null
+/*
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2004
+ * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com.
+ *
+ * (C) Copyright 2006
+ * MicroSys GmbH
+ *
+ * (C) Copyright 2009
+ * Wolfgang Grandegger, DENX Software Engineering, wg@denx.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 <mpc5xxx.h>
+#include <pci.h>
+#include <netdev.h>
+#include <miiphy.h>
+#include <libfdt.h>
+#include <mb862xx.h>
+#include <video_fb.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_OF_LIBFDT
+#include <fdt_support.h>
+#endif /* CONFIG_OF_LIBFDT */
+
+/* mt46v16m16-75 */
+#ifdef CONFIG_MPC5200_DDR
+/* Settings for XLB = 132 MHz */
+#define SDRAM_MODE 0x018D0000
+#define SDRAM_EMODE 0x40090000
+#define SDRAM_CONTROL 0x714f0f00
+#define SDRAM_CONFIG1 0x73722930
+#define SDRAM_CONFIG2 0x47770000
+#define SDRAM_TAPDELAY 0x10000000
+#else
+#error SDRAM is not supported on this board
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void sdram_start (int hi_addr)
+{
+ struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+ long hi_addr_bit = hi_addr ? 0x01000000 : 0;
+
+ /* unlock mode register */
+ out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000000 | hi_addr_bit);
+
+ /* precharge all banks */
+ out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
+
+ /* set mode register: extended mode */
+ out_be32 (&sdram->mode, SDRAM_EMODE);
+
+ /* set mode register: reset DLL */
+ out_be32 (&sdram->mode, SDRAM_MODE | 0x04000000);
+
+ /* precharge all banks */
+ out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000002 | hi_addr_bit);
+
+ /* auto refresh */
+ out_be32 (&sdram->ctrl, SDRAM_CONTROL | 0x80000004 | hi_addr_bit);
+
+ /* set mode register */
+ out_be32 (&sdram->mode, SDRAM_MODE);
+
+ /* normal operation */
+ out_be32 (&sdram->ctrl, SDRAM_CONTROL | hi_addr_bit);
+}
+
+/*
+ * ATTENTION: Although partially referenced initdram does NOT make real
+ * use of CONFIG_SYS_SDRAM_BASE. The code does not work if
+ * CONFIG_SYS_SDRAM_BASE is something else than 0x00000000.
+ */
+
+phys_size_t initdram (int board_type)
+{
+ struct mpc5xxx_mmap_ctl *mmap_ctl =
+ (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+ struct mpc5xxx_sdram *sdram = (struct mpc5xxx_sdram *)MPC5XXX_SDRAM;
+ struct mpc5xxx_cdm *cdm = (struct mpc5xxx_cdm *)MPC5XXX_CDM;
+ ulong dramsize = 0;
+ ulong dramsize2 = 0;
+ ulong test1, test2;
+
+ /* setup SDRAM chip selects */
+ out_be32 (&mmap_ctl->sdram0, 0x0000001e); /* 2G at 0x0 */
+ out_be32 (&mmap_ctl->sdram1, 0x00000000); /* disabled */
+
+ /* setup config registers */
+ out_be32 (&sdram->config1, SDRAM_CONFIG1);
+ out_be32 (&sdram->config2, SDRAM_CONFIG2);
+
+ /* set tap delay */
+ out_be32 (&cdm->porcfg, SDRAM_TAPDELAY);
+
+ /* find RAM size using SDRAM CS0 only */
+ sdram_start (0);
+ test1 = get_ram_size ((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
+ sdram_start (1);
+ test2 = get_ram_size ((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000);
+ if (test1 > test2) {
+ sdram_start (0);
+ dramsize = test1;
+ } else {
+ dramsize = test2;
+ }
+
+ /* memory smaller than 1MB is impossible */
+ if (dramsize < (1 << 20))
+ dramsize = 0;
+
+ /* set SDRAM CS0 size according to the amount of RAM found */
+ if (dramsize > 0)
+ out_be32 (&mmap_ctl->sdram0,
+ 0x13 + __builtin_ffs (dramsize >> 20) - 1);
+ else
+ out_be32 (&mmap_ctl->sdram1, 0); /* disabled */
+
+ /*
+ * On MPC5200B we need to set the special configuration delay in the
+ * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM
+ * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190:
+ *
+ * "The SDelay should be written to a value of 0x00000004. It is
+ * required to account for changes caused by normal wafer processing
+ * parameters."
+ */
+ out_be32 (&sdram->sdelay, 0x04);
+
+ return dramsize + dramsize2;
+}
+
+int checkboard (void)
+{
+ puts ("Board: IPEK01 \n");
+ return 0;
+}
+
+void flash_preinit (void)
+{
+ struct mpc5xxx_lpb *lpb = (struct mpc5xxx_lpb *)MPC5XXX_LPB;
+
+ /*
+ * Now, when we are in RAM, enable flash write
+ * access for detection process.
+ * Note that CS_BOOT cannot be cleared when
+ * executing in flash.
+ */
+ clrbits_be32 (&lpb->cs0_cfg, 0x1); /* clear RO */
+}
+
+void flash_afterinit (ulong start, ulong size)
+{
+ struct mpc5xxx_mmap_ctl *mmap_ctl =
+ (struct mpc5xxx_mmap_ctl *)CONFIG_SYS_MBAR;
+
+#if defined(CONFIG_BOOT_ROM)
+ /* adjust mapping */
+ out_be32 (&mmap_ctl->cs1_start, START_REG (start));
+ out_be32 (&mmap_ctl->cs1_stop, STOP_REG (start, size));
+#else
+ /* adjust mapping */
+ out_be32 (&mmap_ctl->boot_start, START_REG (start));
+ out_be32 (&mmap_ctl->cs0_start, START_REG (start));
+ out_be32 (&mmap_ctl->boot_stop, STOP_REG (start, size));
+ out_be32 (&mmap_ctl->cs0_stop, STOP_REG (start, size));
+#endif
+}
+
+extern flash_info_t flash_info[]; /* info for FLASH chips */
+
+int misc_init_r (void)
+{
+ /* adjust flash start */
+ gd->bd->bi_flashstart = flash_info[0].start[0];
+ return (0);
+}
+
+#ifdef CONFIG_PCI
+static struct pci_controller hose;
+
+extern void pci_mpc5xxx_init (struct pci_controller *);
+
+void pci_init_board (void)
+{
+ pci_mpc5xxx_init (&hose);
+}
+#endif
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup (void *blob, bd_t * bd)
+{
+ ft_cpu_setup (blob, bd);
+ fdt_fixup_memory (blob, (u64) bd->bi_memstart, (u64) bd->bi_memsize);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
+
+int board_eth_init(bd_t *bis)
+{
+ cpu_eth_init(bis); /* Built in FEC comes first */
+ return pci_eth_init(bis);
+}
+
+#ifdef CONFIG_VIDEO
+extern GraphicDevice mb862xx;
+
+static const gdc_regs init_regs[] = {
+ {0x0100, 0x00000900},
+ {0x0020, 0x80190257},
+ {0x0024, 0x00000000},
+ {0x0028, 0x00000000},
+ {0x002c, 0x00000000},
+ {0x0110, 0x00000000},
+ {0x0114, 0x00000000},
+ {0x0118, 0x02570320},
+ {0x0004, 0x041f0000},
+ {0x0008, 0x031f031f},
+ {0x000c, 0x067f0347},
+ {0x0010, 0x02780000},
+ {0x0014, 0x0257025c},
+ {0x0018, 0x00000000},
+ {0x001c, 0x02570320},
+ {0x0100, 0x80010900},
+ {0x0, 0x0}
+};
+
+const gdc_regs *board_get_regs (void)
+{
+ return init_regs;
+}
+
+/* Returns Lime base address */
+unsigned int board_video_init (void)
+{
+ if (mb862xx_probe (CONFIG_SYS_LIME_BASE) != MB862XX_TYPE_LIME)
+ return 0;
+
+ mb862xx.winSizeX = 800;
+ mb862xx.winSizeY = 600;
+ mb862xx.gdfIndex = GDF_15BIT_555RGB;
+ mb862xx.gdfBytesPP = 2;
+
+ return CONFIG_SYS_LIME_BASE;
+}
+
+#if defined(CONFIG_CONSOLE_EXTRA_INFO)
+/*
+ * Return text to be printed besides the logo.
+ */
+void video_get_info_str (int line_number, char *info)
+{
+ if (line_number == 1)
+ strcpy (info, " Board: IPEK01");
+ else
+ info[0] = '\0';
+}
+#endif
+#endif /* CONFIG_VIDEO */
projects / karo-tx-uboot.git / blobdiff