--- /dev/null
+/*
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <malloc.h>
+#include <asm/m5249.h>
+#include <asm/io.h>
+
+
+/* Prototypes */
+int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
+int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
+
+
+#if 0
+#define FPGA_DEBUG
+#endif
+
+/* predefine these here for FPGA programming (before including fpga.c) */
+#define SET_FPGA(data) mbar2_writeLong(MCFSIM_GPIO1_OUT, data)
+#define FPGA_DONE_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_DONE)
+#define FPGA_INIT_STATE (mbar2_readLong(MCFSIM_GPIO1_READ) & CONFIG_SYS_FPGA_INIT)
+#define FPGA_PROG_ACTIVE_HIGH /* on this platform is PROG active high! */
+#define out32(a,b) /* nothing to do (gpio already configured) */
+
+
+/* fpga configuration data - generated by bin2cc */
+const unsigned char fpgadata[] =
+{
+#include "fpgadata.c"
+};
+
+/*
+ * include common fpga code (for esd boards)
+ */
+#include "../common/fpga.c"
+
+
+int checkboard (void) {
+ ulong val;
+ uchar val8;
+
+ puts ("Board: ");
+ puts("esd TASREG");
+ val8 = ((uchar)~((uchar)mbar2_readLong(MCFSIM_GPIO1_READ) >> 4)) & 0xf;
+ printf(" (Switch=%1X)\n", val8);
+
+ /*
+ * Set LED on
+ */
+ val = mbar2_readLong(MCFSIM_GPIO1_OUT) & ~CONFIG_SYS_GPIO1_LED;
+ mbar2_writeLong(MCFSIM_GPIO1_OUT, val); /* Set LED on */
+
+ return 0;
+};
+
+
+phys_size_t initdram (int board_type) {
+ unsigned long junk = 0xa5a59696;
+
+ /*
+ * Note:
+ * RC = ([(RefreshTime/#rows) / (1/BusClk)] / 16) - 1
+ */
+
+#ifdef CONFIG_SYS_FAST_CLK
+ /*
+ * Busclk=70MHz, RefreshTime=64ms, #rows=4096 (4K)
+ * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=39
+ */
+ mbar_writeShort(MCFSIM_DCR, 0x8239);
+#elif CONFIG_SYS_PLL_BYPASS
+ /*
+ * Busclk=5.6448MHz, RefreshTime=64ms, #rows=8192 (8K)
+ * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=02
+ */
+ mbar_writeShort(MCFSIM_DCR, 0x8202);
+#else
+ /*
+ * Busclk=36MHz, RefreshTime=64ms, #rows=4096 (4K)
+ * SO=1, NAM=0, COC=0, RTIM=01 (6clk refresh), RC=22 (562 bus clock cycles)
+ */
+ mbar_writeShort(MCFSIM_DCR, 0x8222);
+#endif
+
+ /*
+ * SDRAM starts at 0x0000_0000, CASL=10, CBM=010, PS=10 (16bit port),
+ * PM=1 (continuous page mode)
+ */
+
+ /* RE=0 (keep auto-refresh disabled while setting up registers) */
+ mbar_writeLong(MCFSIM_DACR0, 0x00003324);
+
+ /* BAM=007c (bits 22,21 are bank selects; 256kB blocks) */
+ mbar_writeLong(MCFSIM_DMR0, 0x01fc0001);
+
+ /** Precharge sequence **/
+ mbar_writeLong(MCFSIM_DACR0, 0x0000332c); /* Set DACR0[IP] (bit 3) */
+ out_be32((void *)0, junk); /* write to a memory location to init. precharge */
+ udelay(0x10); /* Allow several Precharge cycles */
+
+ /** Refresh Sequence **/
+ mbar_writeLong(MCFSIM_DACR0, 0x0000b324); /* Enable the refresh bit, DACR0[RE] (bit 15) */
+ udelay(0x7d0); /* Allow gobs of refresh cycles */
+
+ /** Mode Register initialization **/
+ mbar_writeLong(MCFSIM_DACR0, 0x0000b364); /* Enable DACR0[IMRS] (bit 6); RE remains enabled */
+ out_be32((void *)0x800, junk); /* Access RAM to initialize the mode register */
+
+ return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
+};
+
+
+int testdram (void) {
+ /* TODO: XXX XXX XXX */
+ printf ("DRAM test not implemented!\n");
+
+ return (0);
+}
+
+
+int misc_init_r (void)
+{
+ unsigned char *dst;
+ ulong len = sizeof(fpgadata);
+ int status;
+ int index;
+ int i;
+ uchar buf[8];
+
+ dst = malloc(CONFIG_SYS_FPGA_MAX_SIZE);
+ if (gunzip (dst, CONFIG_SYS_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
+ printf ("GUNZIP ERROR - must RESET board to recover\n");
+ do_reset (NULL, 0, 0, NULL);
+ }
+
+ status = fpga_boot(dst, len);
+ if (status != 0) {
+ printf("\nFPGA: Booting failed ");
+ switch (status) {
+ case ERROR_FPGA_PRG_INIT_LOW:
+ printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");
+ break;
+ case ERROR_FPGA_PRG_INIT_HIGH:
+ printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
+ break;
+ case ERROR_FPGA_PRG_DONE:
+ printf("(Timeout: DONE not high after programming FPGA)\n ");
+ break;
+ }
+
+ /* display infos on fpgaimage */
+ index = 15;
+ for (i=0; i<4; i++) {
+ len = dst[index];
+ printf("FPGA: %s\n", &(dst[index+1]));
+ index += len+3;
+ }
+ putc ('\n');
+ /* delayed reboot */
+ for (i=20; i>0; i--) {
+ printf("Rebooting in %2d seconds \r",i);
+ for (index=0;index<1000;index++)
+ udelay(1000);
+ }
+ putc ('\n');
+ do_reset(NULL, 0, 0, NULL);
+ }
+
+ puts("FPGA: ");
+
+ /* display infos on fpgaimage */
+ index = 15;
+ for (i=0; i<4; i++) {
+ len = dst[index];
+ printf("%s ", &(dst[index+1]));
+ index += len+3;
+ }
+ putc ('\n');
+
+ free(dst);
+
+ /*
+ *
+ */
+ buf[0] = 0x00;
+ buf[1] = 0x32;
+ buf[2] = 0x3f;
+ i2c_write(0x38, 0, 0, buf, 3);
+
+ return (0);
+}
+
+
+#if 1 /* test-only: board specific test commands */
+int i2c_probe(uchar addr);
+
+/*
+ */
+int do_iploop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+
+ if (argc < 2) {
+ puts("ERROR!\n");
+ return -1;
+ }
+
+ addr = simple_strtol (argv[1], NULL, 16);
+
+ printf("i2c probe looping on addr 0x%lx (cntrl-c aborts)...\n", addr);
+
+ for (;;) {
+ i2c_probe(addr);
+
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ udelay(1000);
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ iploop, 2, 1, do_iploop,
+ "i2c probe loop <addr>",
+ ""
+);
+
+/*
+ */
+int do_codec(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ uchar buf[8];
+
+ out_be16((void *)0xe0000000, 0x4000);
+
+ udelay(5000); /* wait for 5ms */
+
+ buf[0] = 0x10;
+ buf[1] = 0x07;
+ buf[2] = 0x03;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x01;
+ buf[2] = 0x80;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x02;
+ buf[2] = 0x03;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x03;
+ buf[2] = 0x29;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x04;
+ buf[2] = 0x00;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x05;
+ buf[2] = 0x00;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ buf[0] = 0x10;
+ buf[1] = 0x07;
+ buf[2] = 0x02;
+ i2c_write(0x10, 0, 0, buf, 3);
+
+ return 0;
+}
+U_BOOT_CMD(
+ codec, 1, 1, do_codec,
+ "Enable codec",
+ ""
+);
+
+/*
+ */
+int do_saa(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+ ulong instr;
+ ulong cntrl;
+ ulong data;
+ uchar buf[8];
+
+ if (argc < 5) {
+ puts("ERROR!\n");
+ return -1;
+ }
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ instr = simple_strtol (argv[2], NULL, 16);
+ cntrl = simple_strtol (argv[3], NULL, 16);
+ data = simple_strtol (argv[4], NULL, 16);
+
+ buf[0] = (uchar)instr;
+ buf[1] = (uchar)cntrl;
+ buf[2] = (uchar)data;
+ i2c_write(addr, 0, 0, buf, 3);
+
+ return 0;
+}
+U_BOOT_CMD(
+ saa, 5, 1, do_saa,
+ "Write to SAA1064 <addr> <instr> <cntrl> <data>",
+ ""
+);
+
+/*
+ */
+int do_iwrite(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+ ulong data0;
+ ulong data1;
+ ulong data2;
+ ulong data3;
+ uchar buf[8];
+ int cnt;
+
+ if (argc < 3) {
+ puts("ERROR!\n");
+ return -1;
+ }
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ cnt = simple_strtol (argv[2], NULL, 16);
+ data0 = simple_strtol (argv[3], NULL, 16);
+ data1 = simple_strtol (argv[4], NULL, 16);
+ data2 = simple_strtol (argv[5], NULL, 16);
+ data3 = simple_strtol (argv[6], NULL, 16);
+
+ printf("Writing %d bytes to device %lx!\n", cnt, addr);
+ buf[0] = (uchar)data0;
+ buf[1] = (uchar)data1;
+ buf[2] = (uchar)data2;
+ buf[3] = (uchar)data3;
+ i2c_write(addr, 0, 0, buf, cnt);
+
+ return 0;
+}
+U_BOOT_CMD(
+ iwrite, 6, 1, do_iwrite,
+ "Write n bytes to I2C-device",
+ "addr cnt data0 ... datan"
+);
+
+/*
+ */
+int do_iread(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+ ulong cnt;
+ uchar buf[32];
+ int i;
+
+ if (argc < 3) {
+ puts("ERROR!\n");
+ return -1;
+ }
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ cnt = simple_strtol (argv[2], NULL, 16);
+
+ i2c_read(addr, 0, 0, buf, cnt);
+ printf("I2C Data:");
+ for (i=0; i<cnt; i++) {
+ printf(" %02X", buf[i]);
+ }
+ printf("\n");
+
+ return 0;
+}
+U_BOOT_CMD(
+ iread, 3, 1, do_iread,
+ "Read from I2C <addr> <cnt>",
+ ""
+);
+
+/*
+ */
+int do_ireadl(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong addr;
+ uchar buf[32];
+ int cnt;
+
+ if (argc < 2) {
+ puts("ERROR!\n");
+ return -1;
+ }
+
+ addr = simple_strtol (argv[1], NULL, 16);
+ cnt = 1;
+
+ printf("iread looping on addr 0x%lx (cntrl-c aborts)...\n", addr);
+
+ for (;;) {
+ i2c_read(addr, 0, 0, buf, cnt);
+
+ /* Abort if ctrl-c was pressed */
+ if (ctrlc()) {
+ puts("\nAbort\n");
+ return 0;
+ }
+
+ udelay(3000);
+ }
+
+ return 0;
+}
+U_BOOT_CMD(
+ ireadl, 2, 1, do_ireadl,
+ "Read-loop from I2C <addr>",
+ ""
+);
+#endif
Code Review / kvmfornfv.git / blobdiff