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-rw-r--r--board/siemens/SCM/scm.c573
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diff --git a/board/siemens/SCM/scm.c b/board/siemens/SCM/scm.c
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+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@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 <ioports.h>
+#include <mpc8260.h>
+
+#include "scm.h"
+
+static void config_scoh_cs(void);
+extern int fpga_init(void);
+
+#if 0
+#define DEBUGF(fmt,args...) printf (fmt ,##args)
+#else
+#define DEBUGF(fmt,args...)
+#endif
+
+/*
+ * I/O Port configuration table
+ *
+ * if conf is 1, then that port pin will be configured at boot time
+ * according to the five values podr/pdir/ppar/psor/pdat for that entry
+ */
+
+const iop_conf_t iop_conf_tab[4][32] = {
+
+ /* Port A configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */
+ /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */
+ /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */
+ /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */
+ /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */
+ /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */
+ /* PA25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA23 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA22 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */
+ /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */
+ /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */
+ /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */
+ /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */
+ /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1]*/
+ /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */
+ /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */
+ /* PA13 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA12 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA11 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA10 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA9 */ { 1, 1, 1, 1, 0, 0 }, /* TDM_A1 L1TXD0 */
+ /* PA8 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1RXD0 */
+ /* PA7 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1TSYNC */
+ /* PA6 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A1 L1RSYNC */
+ /* PA5 */ { 1, 0, 0, 0, 0, 0 }, /* FIOX_FPGA_PR */
+ /* PA4 */ { 1, 0, 0, 0, 0, 0 }, /* DOHM_FPGA_PR */
+ /* PA3 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK4 */
+ /* PA2 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK4 */
+ /* PA1 */ { 0, 0, 0, 1, 0, 0 },
+ /* PA0 */ { 1, 0, 0, 0, 0, 0 } /* BUSY */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 1, 0, 0, 1, 0, 0 }, /* EQ_ALARM_MIN */
+ /* PB30 */ { 1, 0, 0, 1, 0, 0 }, /* EQ_ALARM_MAJ */
+ /* PB29 */ { 1, 0, 0, 1, 0, 0 }, /* COM_ALARM_MIN */
+ /* PB28 */ { 1, 0, 0, 1, 0, 0 }, /* COM_ALARM_MAJ */
+ /* PB27 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB26 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB25 */ { 1, 0, 0, 1, 0, 0 }, /* LED_GREEN_L */
+ /* PB24 */ { 1, 0, 0, 1, 0, 0 }, /* LED_RED_L */
+ /* PB23 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1TXD */
+ /* PB22 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1RXD */
+ /* PB21 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1TSYNC */
+ /* PB20 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_D2 L1RSYNC */
+ /* PB19 */ { 1, 0, 0, 0, 0, 0 }, /* UID */
+ /* PB18 */ { 0, 1, 0, 0, 0, 0 },
+ /* PB17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_DV */
+ /* PB16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_ER */
+ /* PB15 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_ER */
+ /* PB14 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TX_EN */
+ /* PB13 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII COL */
+ /* PB12 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII CRS */
+ /* PB11 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[3] */
+ /* PB10 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[2] */
+ /* PB9 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[1] */
+ /* PB8 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RxD[0] */
+ /* PB7 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[3] */
+ /* PB6 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[2] */
+ /* PB5 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[1] */
+ /* PB4 */ { 1, 1, 0, 1, 0, 0 }, /* FCC3 MII TxD[0] */
+ /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ },
+
+ /* Port C configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK1 */
+ /* PC30 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK1 */
+ /* PC29 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK3 */
+ /* PC28 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK3 */
+ /* PC27 */ { 1, 1, 0, 0, 0, 0 }, /* TDM RXCLK2 */
+ /* PC26 */ { 1, 1, 0, 0, 0, 0 }, /* TDM TXCLK2 */
+ /* PC25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC23 */ { 0, 1, 0, 1, 0, 0 },
+ /* PC22 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII TX_CLK */
+ /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RX_CLK */
+ /* PC19 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC18 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII RX_CLK */
+ /* PC16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC3 MII TX_CLK */
+ /* PC15 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC14 */ { 0, 1, 0, 0, 0, 0 },
+ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* RES_PHY_L */
+ /* PC12 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC11 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC10 */ { 0, 0, 0, 1, 0, 0 },
+ /* PC9 */ { 0, 1, 1, 0, 0, 0 }, /* TDM_A2 L1TSYNC */
+ /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* FEP_RDY */
+ /* PC7 */ { 0, 0, 0, 0, 0, 0 },
+ /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* UC4_ALARM_L */
+ /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* UC3_ALARM_L */
+ /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* UC2_ALARM_L */
+ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* RES_MISC_L */
+ /* PC2 */ { 0, 0, 0, 1, 0, 0 }, /* RES_OH_L */
+ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* RES_DOHM_L */
+ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* RES_FIOX_L */
+ },
+
+ /* Port D configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RxD */
+ /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 EN TxD */
+ /* PD29 */ { 0, 0, 0, 0, 0, 0 }, /* INIT_F */
+ /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* DONE_F */
+ /* PD27 */ { 0, 0, 0, 0, 0, 0 }, /* INIT_D */
+ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* DONE_D */
+ /* PD25 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD24 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD23 */ { 0, 0, 0, 1, 0, 0 },
+ /* PD22 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1TXD */
+ /* PD21 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1RXD */
+ /* PD20 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_A2 L1RSYNC */
+ /* PD19 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPISEL */
+ /* PD18 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPICLK */
+ /* PD17 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPIMOSI */
+ /* PD16 */ { 1, 1, 1, 0, 0, 0 }, /* SPI SPIMOSO */
+#if defined(CONFIG_SOFT_I2C)
+ /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
+ /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
+#else
+#if defined(CONFIG_HARD_I2C)
+ /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#else /* normal I/O port pins */
+ /* PD15 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SDA */
+ /* PD14 */ { 0, 1, 1, 0, 1, 0 }, /* I2C SCL */
+#endif
+#endif
+ /* PD13 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1TXD */
+ /* PD12 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1RXD */
+ /* PD11 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1TSYNC */
+ /* PD10 */ { 1, 1, 1, 0, 0, 0 }, /* TDM_B1 L1RSYNC */
+ /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
+ /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
+ /* PD7 */ { 0, 0, 0, 1, 0, 1 },
+ /* PD6 */ { 0, 0, 0, 1, 0, 1 },
+ /* PD5 */ { 0, 0, 0, 1, 0, 0 }, /* PROG_F */
+ /* PD4 */ { 0, 0, 0, 1, 0, 0 }, /* PROG_D */
+ /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* pin doesn't exist */
+ /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* pin doesn't exist */
+ }
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* Check Board Identity:
+ */
+int checkboard (void)
+{
+ unsigned char str[64];
+ int i = getenv_r ("serial#", str, sizeof (str));
+
+ puts ("Board: ");
+
+ if (!i || strncmp (str, "TQM8260", 7)) {
+ puts ("### No HW ID - assuming TQM8260\n");
+ return (0);
+ }
+
+ puts (str);
+ putc ('\n');
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
+ *
+ * This routine performs standard 8260 initialization sequence
+ * and calculates the available memory size. It may be called
+ * several times to try different SDRAM configurations on both
+ * 60x and local buses.
+ */
+static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
+ ulong orx, volatile uchar * base)
+{
+ volatile uchar c = 0xff;
+ ulong cnt, val;
+ volatile ulong *addr;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ int i;
+ ulong save[32]; /* to make test non-destructive */
+ ulong maxsize;
+
+ /* We must be able to test a location outsize the maximum legal size
+ * to find out THAT we are outside; but this address still has to be
+ * mapped by the controller. That means, that the initial mapping has
+ * to be (at least) twice as large as the maximum expected size.
+ */
+ maxsize = (1 + (~orx | 0x7fff)) / 2;
+
+ /* Since CFG_SDRAM_BASE is always 0 (??), we assume that
+ * we are configuring CS1 if base != 0
+ */
+ sdmr_ptr = base ? &memctl->memc_lsdmr : &memctl->memc_psdmr;
+ orx_ptr = base ? &memctl->memc_or2 : &memctl->memc_or1;
+
+ *orx_ptr = orx;
+
+ /*
+ * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
+ *
+ * "At system reset, initialization software must set up the
+ * programmable parameters in the memory controller banks registers
+ * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
+ * system software should execute the following initialization sequence
+ * for each SDRAM device.
+ *
+ * 1. Issue a PRECHARGE-ALL-BANKS command
+ * 2. Issue eight CBR REFRESH commands
+ * 3. Issue a MODE-SET command to initialize the mode register
+ *
+ * The initial commands are executed by setting P/LSDMR[OP] and
+ * accessing the SDRAM with a single-byte transaction."
+ *
+ * The appropriate BRx/ORx registers have already been set when we
+ * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
+ */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_PREA;
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
+ for (i = 0; i < 8; i++)
+ *base = c;
+
+ *sdmr_ptr = sdmr | PSDMR_OP_MRW;
+ *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ /*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+ i = 0;
+ for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *) base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if ((val = *addr) != 0) {
+ *addr = save[i];
+ return (0);
+ }
+
+ for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
+ addr = (volatile ulong *) base + cnt; /* pointer arith! */
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ /* Write the actual size to ORx
+ */
+ *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
+ return (cnt * sizeof (long));
+ }
+ }
+ return (maxsize);
+}
+
+/*
+ * Test Power-On-Reset.
+ */
+int power_on_reset (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ /* Test Reset Status Register */
+ return gd->reset_status & RSR_CSRS ? 0 : 1;
+}
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CFG_RAMBOOT
+ long size8, size9;
+#endif
+ long psize, lsize;
+
+ psize = 16 * 1024 * 1024;
+ lsize = 0;
+
+ memctl->memc_psrt = CFG_PSRT;
+ memctl->memc_mptpr = CFG_MPTPR;
+
+#if 0 /* Just for debugging */
+#define prt_br_or(brX,orX) do { \
+ ulong start = memctl->memc_ ## brX & 0xFFFF8000; \
+ ulong sizem = ~memctl->memc_ ## orX | 0x00007FFF; \
+ printf ("\n" \
+ #brX " 0x%08x " #orX " 0x%08x " \
+ "==> 0x%08lx ... 0x%08lx = %ld MB\n", \
+ memctl->memc_ ## brX, memctl->memc_ ## orX, \
+ start, start+sizem, (sizem+1)>>20); \
+ } while (0)
+ prt_br_or (br0, or0);
+ prt_br_or (br1, or1);
+ prt_br_or (br2, or2);
+ prt_br_or (br3, or3);
+#endif
+
+#ifndef CFG_RAMBOOT
+ /* 60x SDRAM setup:
+ */
+ size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR1_9COL,
+ (uchar *) CFG_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL - %ld MB, ", psize >> 20);
+ } else {
+ psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR1_8COL,
+ (uchar *) CFG_SDRAM_BASE);
+ printf ("(60x:8COL - %ld MB, ", psize >> 20);
+ }
+
+ /* Local SDRAM setup:
+ */
+#ifdef CFG_INIT_LOCAL_SDRAM
+ memctl->memc_lsrt = CFG_LSRT;
+ size8 = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ size9 = try_init (memctl, CFG_LSDMR_9COL, CFG_OR2_9COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+
+ if (size8 < size9) {
+ lsize = size9;
+ printf ("Local:9COL - %ld MB) using ", lsize >> 20);
+ } else {
+ lsize = try_init (memctl, CFG_LSDMR_8COL, CFG_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ printf ("Local:8COL - %ld MB) using ", lsize >> 20);
+ }
+
+#if 0
+ /* Set up BR2 so that the local SDRAM goes
+ * right after the 60x SDRAM
+ */
+ memctl->memc_br2 = (CFG_BR2_PRELIM & ~BRx_BA_MSK) |
+ (CFG_SDRAM_BASE + psize);
+#endif
+#endif /* CFG_INIT_LOCAL_SDRAM */
+#endif /* CFG_RAMBOOT */
+
+ icache_enable ();
+
+ config_scoh_cs ();
+
+ return (psize);
+}
+
+/* ------------------------------------------------------------------------- */
+
+static void config_scoh_cs (void)
+{
+ volatile immap_t *immr = (immap_t *) CFG_IMMR;
+ volatile memctl8260_t *memctl = &immr->im_memctl;
+ volatile can_reg_t *can = (volatile can_reg_t *) CFG_CAN0_BASE;
+ volatile uint tmp, i;
+
+ /* Initialize OR3 / BR3 for CAN Bus Controller 0 */
+ memctl->memc_or3 = CFG_CAN0_OR3;
+ memctl->memc_br3 = CFG_CAN0_BR3;
+ /* Initialize OR4 / BR4 for CAN Bus Controller 1 */
+ memctl->memc_or4 = CFG_CAN1_OR4;
+ memctl->memc_br4 = CFG_CAN1_BR4;
+
+ /* Initialize MAMR to write in the array at address 0x0 */
+ memctl->memc_mamr = 0x00 | MxMR_OP_WARR | MxMR_GPL_x4DIS;
+
+ /* Initialize UPMA for CAN: single read */
+ memctl->memc_mdr = 0xcffeec00;
+ udelay (1); /* Necessary to have the data correct in the UPM array!!!! */
+ /* The read on the CAN controller write the data of mdr in UPMA array. */
+ /* The index to the array will be incremented automatically
+ through this read */
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcfc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x0ffcfc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0xfffdec07;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+
+ /* Initialize MAMR to write in the array at address 0x18 */
+ memctl->memc_mamr = 0x18 | MxMR_OP_WARR | MxMR_GPL_x4DIS;
+
+ /* Initialize UPMA for CAN: single write */
+ memctl->memc_mdr = 0xfcffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00ffec00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00fffc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x00fffc00;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ memctl->memc_mdr = 0x30ffec07;
+ udelay (1);
+ tmp = can->cpu_interface;
+
+ /* Initialize MAMR */
+ memctl->memc_mamr = MxMR_GPL_x4DIS; /* GPL_B4 ouput line Disable */
+
+
+ /* Initialize OR5 / BR5 for the extended EEPROM Bank0 */
+ memctl->memc_or5 = CFG_EXTPROM_OR5;
+ memctl->memc_br5 = CFG_EXTPROM_BR5;
+ /* Initialize OR6 / BR6 for the extended EEPROM Bank1 */
+ memctl->memc_or6 = CFG_EXTPROM_OR6;
+ memctl->memc_br6 = CFG_EXTPROM_BR6;
+
+ /* Initialize OR7 / BR7 for the Glue Logic */
+ memctl->memc_or7 = CFG_FIOX_OR7;
+ memctl->memc_br7 = CFG_FIOX_BR7;
+
+ /* Initialize OR8 / BR8 for the DOH Logic */
+ memctl->memc_or8 = CFG_FDOHM_OR8;
+ memctl->memc_br8 = CFG_FDOHM_BR8;
+
+ DEBUGF ("OR0 %08x BR0 %08x\n", memctl->memc_or0, memctl->memc_br0);
+ DEBUGF ("OR1 %08x BR1 %08x\n", memctl->memc_or1, memctl->memc_br1);
+ DEBUGF ("OR2 %08x BR2 %08x\n", memctl->memc_or2, memctl->memc_br2);
+ DEBUGF ("OR3 %08x BR3 %08x\n", memctl->memc_or3, memctl->memc_br3);
+ DEBUGF ("OR4 %08x BR4 %08x\n", memctl->memc_or4, memctl->memc_br4);
+ DEBUGF ("OR5 %08x BR5 %08x\n", memctl->memc_or5, memctl->memc_br5);
+ DEBUGF ("OR6 %08x BR6 %08x\n", memctl->memc_or6, memctl->memc_br6);
+ DEBUGF ("OR7 %08x BR7 %08x\n", memctl->memc_or7, memctl->memc_br7);
+ DEBUGF ("OR8 %08x BR8 %08x\n", memctl->memc_or8, memctl->memc_br8);
+
+ DEBUGF ("UPMA addr 0x0\n");
+ memctl->memc_mamr = 0x00 | MxMR_OP_RARR | MxMR_GPL_x4DIS;
+ for (i = 0; i < 0x8; i++) {
+ tmp = can->cpu_interface;
+ udelay (1);
+ DEBUGF (" %08x ", memctl->memc_mdr);
+ }
+ DEBUGF ("\nUPMA addr 0x18\n");
+ memctl->memc_mamr = 0x18 | MxMR_OP_RARR | MxMR_GPL_x4DIS;
+ for (i = 0; i < 0x8; i++) {
+ tmp = can->cpu_interface;
+ udelay (1);
+ DEBUGF (" %08x ", memctl->memc_mdr);
+ }
+ DEBUGF ("\n");
+ memctl->memc_mamr = MxMR_GPL_x4DIS;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int misc_init_r (void)
+{
+ fpga_init ();
+ return (0);
+}
+
+/* ------------------------------------------------------------------------- */
generated by cgit v1.1 at 2024-11-23 22:19:50 +0000