X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=cmd%2Fi2c.c;h=9ebbdd312840242728607d8e1a705d9a2f61af27;hb=09140113108541b95d340f3c7b6ee597d31ccc73;hp=b3bb64408fe18af0c2a754ed653384bd55dee880;hpb=2e192b245ed36a63bab0ef576999a95e23f60ecd;p=oweals%2Fu-boot.git

diff --git a/cmd/i2c.c b/cmd/i2c.c
index b3bb64408f..9ebbdd3128 100644
--- a/cmd/i2c.c
+++ b/cmd/i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2009
  * Sergey Kubushyn, himself, ksi@koi8.net
@@ -6,8 +7,6 @@
  *
  * (C) Copyright 2001
  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
@@ -72,14 +71,12 @@
 #include <console.h>
 #include <dm.h>
 #include <edid.h>
-#include <environment.h>
 #include <errno.h>
 #include <i2c.h>
 #include <malloc.h>
 #include <asm/byteorder.h>
 #include <linux/compiler.h>
-
-DECLARE_GLOBAL_DATA_PTR;
+#include <u-boot/crc.h>
 
 /* Display values from last command.
  * Memory modify remembered values are different from display memory.
@@ -151,6 +148,16 @@ static int cmd_i2c_set_bus_num(unsigned int busnum)
 
 static int i2c_get_cur_bus(struct udevice **busp)
 {
+#ifdef CONFIG_I2C_SET_DEFAULT_BUS_NUM
+	if (!i2c_cur_bus) {
+		if (cmd_i2c_set_bus_num(CONFIG_I2C_DEFAULT_BUS_NUMBER)) {
+			printf("Default I2C bus %d not found\n",
+			       CONFIG_I2C_DEFAULT_BUS_NUMBER);
+			return -ENODEV;
+		}
+	}
+#endif
+
 	if (!i2c_cur_bus) {
 		puts("No I2C bus selected\n");
 		return -ENODEV;
@@ -178,7 +185,7 @@ static int i2c_get_cur_bus_chip(uint chip_addr, struct udevice **devp)
  * i2c_init_board() - Board-specific I2C bus init
  *
  * This function is the default no-op implementation of I2C bus
- * initialization. This function can be overriden by board-specific
+ * initialization. This function can be overridden by board-specific
  * implementation if needed.
  */
 __weak
@@ -281,7 +288,8 @@ static int i2c_report_err(int ret, enum i2c_err_op op)
  * Syntax:
  *	i2c read {i2c_chip} {devaddr}{.0, .1, .2} {len} {memaddr}
  */
-static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_read(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
 {
 	uint	chip;
 	uint	devaddr, length;
@@ -334,7 +342,8 @@ static int do_i2c_read ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
 	return 0;
 }
 
-static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_write(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
 {
 	uint	chip;
 	uint	devaddr, length;
@@ -425,7 +434,7 @@ static int do_i2c_write(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[
 }
 
 #ifdef CONFIG_DM_I2C
-static int do_i2c_flags(cmd_tbl_t *cmdtp, int flag, int argc,
+static int do_i2c_flags(struct cmd_tbl *cmdtp, int flag, int argc,
 			char *const argv[])
 {
 	struct udevice *dev;
@@ -455,7 +464,8 @@ static int do_i2c_flags(cmd_tbl_t *cmdtp, int flag, int argc,
 	return 0;
 }
 
-static int do_i2c_olen(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+static int do_i2c_olen(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
 {
 	struct udevice *dev;
 	uint olen;
@@ -500,7 +510,8 @@ static int do_i2c_olen(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
  * Syntax:
  *	i2c md {i2c_chip} {addr}{.0, .1, .2} {len}
  */
-static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_md(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
 {
 	uint	chip;
 	uint	addr, length;
@@ -619,7 +630,8 @@ static int do_i2c_md ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
  * Syntax:
  *	i2c mw {i2c_chip} {addr}{.0, .1, .2} {data} [{count}]
  */
-static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_mw(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
 {
 	uint	chip;
 	ulong	addr;
@@ -705,7 +717,8 @@ static int do_i2c_mw ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
  * Syntax:
  *	i2c crc32 {i2c_chip} {addr}{.0, .1, .2} {count}
  */
-static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_crc(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
 {
 	uint	chip;
 	ulong	addr;
@@ -762,7 +775,7 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
 #endif
 		if (ret)
 			err++;
-		crc = crc32 (crc, &byte, 1);
+		crc = crc32(crc, &byte, 1);
 		addr++;
 	}
 	if (err > 0)
@@ -789,8 +802,8 @@ static int do_i2c_crc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]
  *	i2c mm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2}
  *	i2c nm{.b, .w, .l} {i2c_chip} {addr}{.0, .1, .2}
  */
-static int
-mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const argv[])
+static int mod_i2c_mem(struct cmd_tbl *cmdtp, int incrflag, int flag, int argc,
+		       char *const argv[])
 {
 	uint	chip;
 	ulong	addr;
@@ -938,7 +951,8 @@ mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char * const arg
  *
  * Returns zero (success) if one or more I2C devices was found
  */
-static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_probe(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
 {
 	int j;
 	int addr = -1;
@@ -1013,7 +1027,8 @@ static int do_i2c_probe (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv
  *	{length} - Number of bytes to read
  *	{delay}  - A DECIMAL number and defaults to 1000 uSec
  */
-static int do_i2c_loop(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_loop(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
 {
 	uint	chip;
 	int alen;
@@ -1139,14 +1154,18 @@ static void decode_bits (u_char const b, char const *str[], int const do_once)
  * Syntax:
  *	i2c sdram {i2c_chip}
  */
-static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_sdram(struct cmd_tbl *cmdtp, int flag, int argc,
+		    char *const argv[])
 {
-	enum { unknown, EDO, SDRAM, DDR2 } type;
+	enum { unknown, EDO, SDRAM, DDR, DDR2, DDR3, DDR4 } type;
 
 	uint	chip;
 	u_char	data[128];
 	u_char	cksum;
-	int	j;
+	int	j, ret;
+#ifdef CONFIG_DM_I2C
+	struct udevice *dev;
+#endif
 
 	static const char *decode_CAS_DDR2[] = {
 		" TBD", " 6", " 5", " 4", " 3", " 2", " TBD", " TBD"
@@ -1200,7 +1219,14 @@ static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 	 */
 	chip = simple_strtoul (argv[1], NULL, 16);
 
-	if (i2c_read (chip, 0, 1, data, sizeof (data)) != 0) {
+#ifdef CONFIG_DM_I2C
+	ret = i2c_get_cur_bus_chip(chip, &dev);
+	if (!ret)
+		ret = dm_i2c_read(dev, 0, data, sizeof(data));
+#else
+	ret = i2c_read(chip, 0, 1, data, sizeof(data));
+#endif
+	if (ret) {
 		puts ("No SDRAM Serial Presence Detect found.\n");
 		return 1;
 	}
@@ -1228,10 +1254,22 @@ static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 		type = SDRAM;
 		puts ("SDRAM\n");
 		break;
+	case 7:
+		type = DDR;
+		puts("DDR\n");
+		break;
 	case 8:
 		type = DDR2;
 		puts ("DDR2\n");
 		break;
+	case 11:
+		type = DDR3;
+		puts("DDR3\n");
+		break;
+	case 12:
+		type = DDR4;
+		puts("DDR4\n");
+		break;
 	default:
 		type = unknown;
 		puts ("unknown\n");
@@ -1619,7 +1657,7 @@ static int do_sdram (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
  *	i2c edid {i2c_chip}
  */
 #if defined(CONFIG_I2C_EDID)
-int do_edid(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+int do_edid(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	uint chip;
 	struct edid1_info edid;
@@ -1686,8 +1724,8 @@ static void show_bus(struct udevice *bus)
  * Returns zero always.
  */
 #if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
-static int do_i2c_show_bus(cmd_tbl_t *cmdtp, int flag, int argc,
-				char * const argv[])
+static int do_i2c_show_bus(struct cmd_tbl *cmdtp, int flag, int argc,
+			   char *const argv[])
 {
 	if (argc == 1) {
 		/* show all busses */
@@ -1773,8 +1811,8 @@ static int do_i2c_show_bus(cmd_tbl_t *cmdtp, int flag, int argc,
  */
 #if defined(CONFIG_SYS_I2C) || defined(CONFIG_I2C_MULTI_BUS) || \
 		defined(CONFIG_DM_I2C)
-static int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc,
-				char * const argv[])
+static int do_i2c_bus_num(struct cmd_tbl *cmdtp, int flag, int argc,
+			  char *const argv[])
 {
 	int		ret = 0;
 	int	bus_no;
@@ -1824,7 +1862,8 @@ static int do_i2c_bus_num(cmd_tbl_t *cmdtp, int flag, int argc,
  * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
  * on error.
  */
-static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_bus_speed(struct cmd_tbl *cmdtp, int flag, int argc,
+			    char *const argv[])
 {
 	int speed, ret=0;
 
@@ -1867,7 +1906,8 @@ static int do_i2c_bus_speed(cmd_tbl_t * cmdtp, int flag, int argc, char * const
  * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
  * on error.
  */
-static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_mm(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
 {
 	return mod_i2c_mem (cmdtp, 1, flag, argc, argv);
 }
@@ -1882,7 +1922,8 @@ static int do_i2c_mm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
  * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
  * on error.
  */
-static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_nm(struct cmd_tbl *cmdtp, int flag, int argc,
+		     char *const argv[])
 {
 	return mod_i2c_mem (cmdtp, 0, flag, argc, argv);
 }
@@ -1896,7 +1937,8 @@ static int do_i2c_nm(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
  *
  * Returns zero always.
  */
-static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c_reset(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
 {
 #if defined(CONFIG_DM_I2C)
 	struct udevice *bus;
@@ -1915,7 +1957,7 @@ static int do_i2c_reset(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv
 	return 0;
 }
 
-static cmd_tbl_t cmd_i2c_sub[] = {
+static struct cmd_tbl cmd_i2c_sub[] = {
 #if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
 	U_BOOT_CMD_MKENT(bus, 1, 1, do_i2c_show_bus, "", ""),
 #endif
@@ -1966,9 +2008,9 @@ static __maybe_unused void i2c_reloc(void)
  * Returns zero on success, CMD_RET_USAGE in case of misuse and negative
  * on error.
  */
-static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_i2c(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
-	cmd_tbl_t *c;
+	struct cmd_tbl *c;
 
 #ifdef CONFIG_NEEDS_MANUAL_RELOC
 	i2c_reloc();
@@ -1994,6 +2036,7 @@ static int do_i2c(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 static char i2c_help_text[] =
 #if defined(CONFIG_SYS_I2C) || defined(CONFIG_DM_I2C)
 	"bus [muxtype:muxaddr:muxchannel] - show I2C bus info\n"
+	"i2c " /* That's the prefix for the crc32 command below. */
 #endif
 	"crc32 chip address[.0, .1, .2] count - compute CRC32 checksum\n"
 #if defined(CONFIG_SYS_I2C) || \