--- /dev/null
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#if 0
+#define DEBUG
+#endif
+
+#include <common.h>
+#include <mpc8xx.h>
+#include <i2c.h>
+#include <miiphy.h>
+
+int fec8xx_miiphy_write(char *devname, unsigned char addr,
+ unsigned char reg, unsigned short value);
+
+/*********************************************************************/
+/* UPMA Pre Initilization Table by WV (Miron MT48LC16M16A2-7E B) */
+/*********************************************************************/
+const uint sdram_init_upm_table[] = {
+ /* SDRAM Initialisation Sequence (offset 0 in UPMA RAM) WV */
+ /* NOP - Precharge - AutoRefr - NOP - NOP */
+ /* NOP - AutoRefr - NOP */
+ /* NOP - NOP - LoadModeR - NOP - Active */
+ /* Position of Single Read */
+ 0x0ffffc04, 0x0ff77c04, 0x0ff5fc04, 0x0ffffc04, 0x0ffffc04,
+ 0x0ffffc04, 0x0ff5fc04, 0x0ffffc04,
+
+ /* Burst Read. (offset 8 in UPMA RAM) */
+ /* Cycle lent for Initialisation WV */
+ 0x0ffffc04, 0x0ffffc34, 0x0f057c34, 0x0ffffc30, 0x1ff7fc05,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Single Write. (offset 18 in UPMA RAM) */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Burst Write. (offset 20 in UPMA RAM) */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Refresh (offset 30 in UPMA RAM) */
+ 0x0FF77C04, 0x0FFFFC04, 0x0FF5FC84, 0x0FFFFC04, 0x0FFFFC04,
+ 0x0FFFFC84, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Exception. (offset 3c in UPMA RAM) */
+ 0x7FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+};
+
+/*********************************************************************/
+/* UPMA initilization table. */
+/*********************************************************************/
+const uint sdram_upm_table[] = {
+ /* single read. (offset 0 in UPMA RAM) */
+ 0x0F07FC04, 0x0FFFFC04, 0x00BDFC04, 0x0FF77C00, 0x1FFFFC05,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, /* 0x05-0x07 new WV */
+
+ /* Burst Read. (offset 8 in UPMA RAM) */
+ 0x0F07FC04, 0x0FFFFC04, 0x00BDFC04, 0x00FFFC00, 0x00FFFC00,
+ 0x00FFFC00, 0x0FF77C00, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Single Write. (offset 18 in UPMA RAM) */
+ 0x0F07FC04, 0x0FFFFC00, 0x00BD7C04, 0x0FFFFC04, 0x0FF77C04,
+ 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Burst Write. (offset 20 in UPMA RAM) */
+ 0x0F07FC04, 0x0FFFFC00, 0x00BD7C00, 0x00FFFC00, 0x00FFFC00,
+ 0x00FFFC04, 0x0FFFFC04, 0x0FF77C04, 0x1FFFFC05, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Refresh (offset 30 in UPMA RAM) */
+ 0x0FF77C04, 0x0FFFFC04, 0x0FF5FC84, 0x0FFFFC04, 0x0FFFFC04,
+ 0x0FFFFC84, 0x1FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Exception. (offset 3c in UPMA RAM) */
+ 0x7FFFFC05, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, /* 0x3C new WV */
+};
+
+/*********************************************************************/
+/* UPMB initilization table. */
+/*********************************************************************/
+const uint mpm_upm_table[] = {
+ /* single read. (offset 0 in upm RAM) */
+ 0x8FF00004, 0x0FF00004, 0x0FF81004, 0x1FF00001,
+ 0x1FF00001, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* burst read. (Offset 8 in upm RAM) */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* single write. (Offset 0x18 in upm RAM) */
+ 0x8FF00004, 0x0FF00004, 0x0FF81004, 0x0FF00004,
+ 0x0FF00004, 0x1FF00001, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* burst write. (Offset 0x20 in upm RAM) */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Refresh cycle, offset 0x30 */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+
+ /* Exception, 0ffset 0x3C */
+ 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,
+};
+
+
+int board_switch(void)
+{
+ volatile pcmconf8xx_t *pcmp;
+
+ pcmp = (pcmconf8xx_t *)(&(((immap_t *)CONFIG_SYS_IMMR)->im_pcmcia));
+
+ return ((pcmp->pcmc_pipr >> 24) & 0xf);
+}
+
+
+/*
+ * Check Board Identity:
+ */
+int checkboard (void)
+{
+ char str[64];
+ int i = getenv_f("serial#", str, sizeof(str));
+
+ puts ("Board: ");
+
+ if (i == -1) {
+ puts ("### No HW ID - assuming UC100");
+ } else {
+ puts(str);
+ }
+
+ printf (" (SWITCH=%1X)\n", board_switch());
+
+ return 0;
+}
+
+
+/*
+ * Initialize SDRAM
+ */
+phys_size_t initdram (int board_type)
+{
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+ /*---------------------------------------------------------------------*/
+ /* Initialize the UPMA/UPMB registers with the appropriate table. */
+ /*---------------------------------------------------------------------*/
+ upmconfig (UPMA, (uint *) sdram_init_upm_table,
+ sizeof (sdram_init_upm_table) / sizeof (uint));
+ upmconfig (UPMB, (uint *) mpm_upm_table,
+ sizeof (mpm_upm_table) / sizeof (uint));
+
+ /*---------------------------------------------------------------------*/
+ /* Memory Periodic Timer Prescaler: divide by 16 */
+ /*---------------------------------------------------------------------*/
+ memctl->memc_mptpr = 0x0200; /* Divide by 32 WV */
+
+ memctl->memc_mamr = CONFIG_SYS_MAMR_VAL & 0xFF7FFFFF; /* Bit 8 := "0" Kein Refresh WV */
+ memctl->memc_mbmr = CONFIG_SYS_MBMR_VAL;
+
+ /*---------------------------------------------------------------------*/
+ /* Initialize the Memory Controller registers, MPTPR, Chip Select 1 */
+ /* for SDRAM */
+ /* */
+ /* NOTE: The refresh rate in MAMR reg is set according to the lowest */
+ /* clock rate (16.67MHz) to allow proper operation for all ADS */
+ /* clock frequencies. */
+ /*---------------------------------------------------------------------*/
+ memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;
+ memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;
+
+ /*-------------------------------------------------------------------*/
+ /* Wait at least 200 usec for DRAM to stabilize, this magic number */
+ /* obtained from the init code. */
+ /*-------------------------------------------------------------------*/
+ udelay(200);
+
+ memctl->memc_mamr = (memctl->memc_mamr | 0x04) & ~0x08;
+
+ memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;
+ memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;
+
+ /*---------------------------------------------------------------------*/
+ /* run MRS command in location 5-8 of UPMB. */
+ /*---------------------------------------------------------------------*/
+ memctl->memc_mar = 0x88;
+ /* RUN UPMA on CS1 1-time from UPMA addr 0x05 */
+
+ memctl->memc_mcr = 0x80002100;
+ /* RUN UPMA on CS1 1-time from UPMA addr 0x00 WV */
+
+ udelay(200);
+
+ /*---------------------------------------------------------------------*/
+ /* Initialisation for normal access WV */
+ /*---------------------------------------------------------------------*/
+
+ /*---------------------------------------------------------------------*/
+ /* Initialize the UPMA register with the appropriate table. */
+ /*---------------------------------------------------------------------*/
+ upmconfig (UPMA, (uint *) sdram_upm_table,
+ sizeof (sdram_upm_table) / sizeof (uint));
+
+ /*---------------------------------------------------------------------*/
+ /* rerstore MBMR value (4-beat refresh burst.) */
+ /*---------------------------------------------------------------------*/
+ memctl->memc_mamr = CONFIG_SYS_MAMR_VAL | 0x00800000; /* Bit 8 := "1" Refresh Enable WV */
+
+ udelay(200);
+
+ return (64 * 1024 * 1024); /* fixed setup for 64MBytes! */
+}
+
+
+int misc_init_r (void)
+{
+ uchar val;
+
+ /*
+ * Make sure that RTC has clock output enabled (triggers watchdog!)
+ */
+ val = i2c_reg_read (CONFIG_SYS_I2C_RTC_ADDR, 0x0D);
+ val |= 0x80;
+ i2c_reg_write (CONFIG_SYS_I2C_RTC_ADDR, 0x0D, val);
+
+ /*
+ * Configure PHY to setup LED's correctly and use 100MBit, FD
+ */
+ mii_init();
+
+ /* disable auto-negotiation, 100mbit, full-duplex */
+ fec8xx_miiphy_write(NULL, 0, MII_BMCR, 0x2100);
+
+ /* set LED's to Link, Transmit, Receive */
+ fec8xx_miiphy_write(NULL, 0, MII_NWAYTEST, 0x4122);
+
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff