--- /dev/null
+/*
+ * (C) Copyright 2001
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <ioports.h>
+#include <mpc8260.h>
+
+/*
+ * 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 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMTXEN */
+ /* PA30 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTCA */
+ /* PA29 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTSOC */
+ /* PA28 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 *ATMRXEN */
+ /* PA27 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRSOC */
+ /* PA26 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRCA */
+ /* PA25 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[0] */
+ /* PA24 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[1] */
+ /* PA23 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[2] */
+ /* PA22 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[3] */
+ /* PA21 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[4] */
+ /* PA20 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[5] */
+ /* PA19 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[6] */
+ /* PA18 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMTXD[7] */
+ /* PA17 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[7] */
+ /* PA16 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[6] */
+ /* PA15 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[5] */
+ /* PA14 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[4] */
+ /* PA13 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[3] */
+ /* PA12 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[2] */
+ /* PA11 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[1] */
+ /* PA10 */ { 0, 0, 0, 1, 0, 0 }, /* FCC1 ATMRXD[0] */
+ /* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
+ /* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
+ /* PA7 */ { 0, 0, 0, 1, 0, 0 }, /* PA7 */
+ /* PA6 */ { 0, 0, 0, 1, 0, 0 }, /* PA6 */
+ /* PA5 */ { 0, 0, 0, 1, 0, 0 }, /* PA5 */
+ /* PA4 */ { 0, 0, 0, 1, 0, 0 }, /* PA4 */
+ /* PA3 */ { 0, 0, 0, 1, 0, 0 }, /* PA3 */
+ /* PA2 */ { 0, 0, 0, 1, 0, 0 }, /* PA2 */
+ /* PA1 */ { 0, 0, 0, 1, 0, 0 }, /* PA1 */
+ /* PA0 */ { 0, 0, 0, 1, 0, 0 } /* PA0 */
+ },
+
+ /* Port B configuration */
+ { /* conf ppar psor pdir podr pdat */
+ /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
+ /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
+ /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
+ /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
+ /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
+ /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
+ /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
+ /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
+ /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
+ /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
+ /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
+ /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
+ /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
+ /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
+ /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
+ /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
+ /* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* PB15 */
+ /* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* PB14 */
+ /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
+ /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
+ /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
+ /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
+ /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
+ /* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* PB8 */
+ /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
+ /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
+ /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
+ /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
+ /* 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 */
+ { /* conf ppar psor pdir podr pdat */
+ /* PC31 */ { 0, 0, 0, 1, 0, 0 }, /* PC31 */
+ /* PC30 */ { 0, 0, 0, 1, 0, 0 }, /* PC30 */
+ /* PC29 */ { 1, 1, 1, 0, 0, 0 }, /* SCC1 EN *CLSN */
+ /* PC28 */ { 0, 0, 0, 1, 0, 0 }, /* PC28 */
+ /* PC27 */ { 0, 0, 0, 1, 0, 0 }, /* PC27 */
+ /* PC26 */ { 0, 0, 0, 1, 0, 0 }, /* PC26 */
+ /* PC25 */ { 0, 0, 0, 1, 0, 0 }, /* PC25 */
+ /* PC24 */ { 0, 0, 0, 1, 0, 0 }, /* PC24 */
+ /* PC23 */ { 0, 1, 0, 1, 0, 0 }, /* ATMTFCLK */
+ /* PC22 */ { 0, 1, 0, 0, 0, 0 }, /* ATMRFCLK */
+ /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN RXCLK */
+ /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN TXCLK */
+ /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
+ /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
+ /* PC17 */ { 0, 0, 0, 1, 0, 0 }, /* PC17 */
+ /* PC16 */ { 0, 0, 0, 1, 0, 0 }, /* PC16 */
+ /* PC15 */ { 0, 0, 0, 1, 0, 0 }, /* PC15 */
+ /* PC14 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 EN *CD */
+ /* PC13 */ { 0, 0, 0, 1, 0, 0 }, /* PC13 */
+ /* PC12 */ { 0, 0, 0, 1, 0, 0 }, /* PC12 */
+ /* PC11 */ { 0, 0, 0, 1, 0, 0 }, /* PC11 */
+ /* PC10 */ { 0, 0, 0, 1, 0, 0 }, /* FCC2 MDC */
+ /* PC9 */ { 0, 0, 0, 1, 0, 0 }, /* FCC2 MDIO */
+ /* PC8 */ { 0, 0, 0, 1, 0, 0 }, /* PC8 */
+ /* PC7 */ { 0, 0, 0, 1, 0, 0 }, /* PC7 */
+ /* PC6 */ { 0, 0, 0, 1, 0, 0 }, /* PC6 */
+ /* PC5 */ { 0, 0, 0, 1, 0, 0 }, /* PC5 */
+ /* PC4 */ { 0, 0, 0, 1, 0, 0 }, /* PC4 */
+ /* PC3 */ { 0, 0, 0, 1, 0, 0 }, /* PC3 */
+ /* PC2 */ { 0, 0, 0, 1, 0, 1 }, /* ENET FDE */
+ /* PC1 */ { 0, 0, 0, 1, 0, 0 }, /* ENET DSQE */
+ /* PC0 */ { 0, 0, 0, 1, 0, 0 }, /* ENET LBK */
+ },
+
+ /* Port D */
+ { /* 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 */ { 1, 1, 0, 1, 0, 0 }, /* SCC1 EN TENA */
+ /* PD28 */ { 0, 0, 0, 1, 0, 0 }, /* PD28 */
+ /* PD27 */ { 0, 0, 0, 1, 0, 0 }, /* PD27 */
+ /* PD26 */ { 0, 0, 0, 1, 0, 0 }, /* PD26 */
+ /* PD25 */ { 0, 0, 0, 1, 0, 0 }, /* PD25 */
+ /* PD24 */ { 0, 0, 0, 1, 0, 0 }, /* PD24 */
+ /* PD23 */ { 0, 0, 0, 1, 0, 0 }, /* PD23 */
+ /* PD22 */ { 0, 0, 0, 1, 0, 0 }, /* PD22 */
+ /* PD21 */ { 0, 0, 0, 1, 0, 0 }, /* PD21 */
+ /* PD20 */ { 0, 0, 0, 1, 0, 0 }, /* PD20 */
+ /* PD19 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
+ /* PD18 */ { 0, 0, 0, 1, 0, 0 }, /* PD19 */
+ /* PD17 */ { 0, 1, 0, 0, 0, 0 }, /* FCC1 ATMRXPRTY */
+ /* PD16 */ { 0, 1, 0, 1, 0, 0 }, /* FCC1 ATMTXPRTY */
+#if defined(CONFIG_SYS_I2C_SOFT)
+ /* 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 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
+ /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
+ /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
+ /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
+ /* 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 }, /* PD7 */
+ /* PD6 */ { 0, 0, 0, 1, 0, 1 }, /* PD6 */
+ /* PD5 */ { 0, 0, 0, 1, 0, 1 }, /* PD5 */
+ /* PD4 */ { 0, 0, 0, 1, 0, 1 }, /* PD4 */
+ /* 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)
+{
+ char buf[64];
+ int i = getenv_f("serial#", buf, sizeof(buf));
+
+ puts ("Board: ");
+
+ if (i < 0 || strncmp(buf, "TQM82", 5)) {
+ puts ("### No HW ID - assuming TQM8260\n");
+ return (0);
+ }
+
+ puts (buf);
+ 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;
+ volatile uint *sdmr_ptr;
+ volatile uint *orx_ptr;
+ ulong maxsize, size;
+ int i;
+
+ /* 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 CONFIG_SYS_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 CONFIG_SYS_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 + CONFIG_SYS_MRS_OFFS) = c; /* setting MR on address lines */
+
+ *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
+ *base = c;
+
+ size = get_ram_size((long *)base, maxsize);
+ *orx_ptr = orx | ~(size - 1);
+
+ return (size);
+}
+
+phys_size_t initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ volatile memctl8260_t *memctl = &immap->im_memctl;
+
+#ifndef CONFIG_SYS_RAMBOOT
+ long size8, size9;
+#endif
+ long psize, lsize;
+
+ psize = 16 * 1024 * 1024;
+ lsize = 0;
+
+ memctl->memc_psrt = CONFIG_SYS_PSRT;
+ memctl->memc_mptpr = CONFIG_SYS_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 CONFIG_SYS_RAMBOOT
+ /* 60x SDRAM setup:
+ */
+ size8 = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR1_8COL,
+ (uchar *) CONFIG_SYS_SDRAM_BASE);
+ size9 = try_init (memctl, CONFIG_SYS_PSDMR_9COL, CONFIG_SYS_OR1_9COL,
+ (uchar *) CONFIG_SYS_SDRAM_BASE);
+
+ if (size8 < size9) {
+ psize = size9;
+ printf ("(60x:9COL - %ld MB, ", psize >> 20);
+ } else {
+ psize = try_init (memctl, CONFIG_SYS_PSDMR_8COL, CONFIG_SYS_OR1_8COL,
+ (uchar *) CONFIG_SYS_SDRAM_BASE);
+ printf ("(60x:8COL - %ld MB, ", psize >> 20);
+ }
+
+ /* Local SDRAM setup:
+ */
+#ifdef CONFIG_SYS_INIT_LOCAL_SDRAM
+ memctl->memc_lsrt = CONFIG_SYS_LSRT;
+ size8 = try_init (memctl, CONFIG_SYS_LSDMR_8COL, CONFIG_SYS_OR2_8COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+ size9 = try_init (memctl, CONFIG_SYS_LSDMR_9COL, CONFIG_SYS_OR2_9COL,
+ (uchar *) SDRAM_BASE2_PRELIM);
+
+ if (size8 < size9) {
+ lsize = size9;
+ printf ("Local:9COL - %ld MB) using ", lsize >> 20);
+ } else {
+ lsize = try_init (memctl, CONFIG_SYS_LSDMR_8COL, CONFIG_SYS_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 = (CONFIG_SYS_BR2_PRELIM & ~BRx_BA_MSK) |
+ (CONFIG_SYS_SDRAM_BASE + psize);
+#endif
+#endif /* CONFIG_SYS_INIT_LOCAL_SDRAM */
+#endif /* CONFIG_SYS_RAMBOOT */
+
+ icache_enable ();
+
+ return (psize);
+}
+
+/* ------------------------------------------------------------------------- */
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