[U-Boot] [PATCH v2 5/7] inka4x0: Add hardware diagnosis functions for inka4x0
Detlev Zundel
dzu at denx.de
Wed Mar 25 17:27:56 CET 2009
This patch adds advanced diagnosis functions for the inka4x0 board.
Signed-off-by: Andreas Pfefferle <ap at denx.de>
Signed-off-by: Detlev Zundel <dzu at denx.de>
---
board/inka4x0/Makefile | 4 +-
board/inka4x0/inka4x0.c | 20 ++-
board/inka4x0/inkadiag.c | 514 +++++++++++++++++++++++++++++++++++++++++++++
include/configs/inka4x0.h | 1 +
include/ns16550.h | 11 +
5 files changed, 546 insertions(+), 4 deletions(-)
create mode 100644 board/inka4x0/inkadiag.c
diff --git a/board/inka4x0/Makefile b/board/inka4x0/Makefile
index 442e2d0..82aa950 100644
--- a/board/inka4x0/Makefile
+++ b/board/inka4x0/Makefile
@@ -1,5 +1,5 @@
#
-# (C) Copyright 2003-2006
+# (C) Copyright 2003-2009
# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
#
# See file CREDITS for list of people who contributed to this
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o
+COBJS := $(BOARD).o inkadiag.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/inka4x0/inka4x0.c b/board/inka4x0/inka4x0.c
index 507196b..bb5c25d 100644
--- a/board/inka4x0/inka4x0.c
+++ b/board/inka4x0/inka4x0.c
@@ -1,6 +1,9 @@
/*
- * (C) Copyright 2003-2004
- * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ * (C) Copyright 2008-2009
+ * Andreas Pfefferle, DENX Software Engineering, ap at denx.de.
+ *
+ * (C) Copyright 2009
+ * Detlev Zundel, DENX Software Engineering, dzu at denx.de.
*
* (C) Copyright 2004
* Mark Jonas, Freescale Semiconductor, mark.jonas at motorola.com.
@@ -8,6 +11,9 @@
* (C) Copyright 2004
* Martin Krause, TQ-Systems GmbH, martin.krause at tqs.de
*
+ * (C) Copyright 2003-2004
+ * Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
@@ -171,6 +177,16 @@ void flash_preinit(void)
*(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */
}
+int misc_init_r (void) {
+ extern int inkadiag_init_r (void);
+
+ /*
+ * The command table used for the subcommands of inkadiag
+ * needs to be relocated manually.
+ */
+ return inkadiag_init_r();
+}
+
int misc_init_f (void)
{
char tmp[10];
diff --git a/board/inka4x0/inkadiag.c b/board/inka4x0/inkadiag.c
new file mode 100644
index 0000000..06c9807
--- /dev/null
+++ b/board/inka4x0/inkadiag.c
@@ -0,0 +1,514 @@
+/*
+ * (C) Copyright 2008, 2009 Andreas Pfefferle,
+ * DENX Software Engineering, ap at denx.de.
+ * (C) Copyright 2009 Detlev Zundel,
+ * DENX Software Engineering, dzu at 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 <asm/io.h>
+#include <common.h>
+#include <config.h>
+#include <mpc5xxx.h>
+#include <pci.h>
+
+#include <command.h>
+
+/* This is needed for the includes in ns16550.h */
+#define CONFIG_SYS_NS16550_REG_SIZE 1
+#include <ns16550.h>
+
+#define GPIO_BASE ((u_char *)CONFIG_SYS_CS3_START)
+
+#define DIGIN_TOUCHSCR_MASK 0x00003000 /* Inputs 12-13 */
+#define DIGIN_KEYB_MASK 0x00010000 /* Input 16 */
+
+#define DIGIN_DRAWER_SW1 0x00400000 /* Input 22 */
+#define DIGIN_DRAWER_SW2 0x00800000 /* Input 23 */
+
+#define DIGIO_LED0 0x00000001 /* Output 0 */
+#define DIGIO_LED1 0x00000002 /* Output 1 */
+#define DIGIO_LED2 0x00000004 /* Output 2 */
+#define DIGIO_LED3 0x00000008 /* Output 3 */
+#define DIGIO_LED4 0x00000010 /* Output 4 */
+#define DIGIO_LED5 0x00000020 /* Output 5 */
+
+#define DIGIO_DRAWER1 0x00000100 /* Output 8 */
+#define DIGIO_DRAWER2 0x00000200 /* Output 9 */
+
+#define SERIAL_PORT_BASE ((u_char *)CONFIG_SYS_CS2_START)
+
+#define PSC_OP1_RTS 0x01
+#define PSC_OP0_RTS 0x01
+
+/*
+ * Table with supported baudrates (defined in inka4x0.h)
+ */
+static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
+#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
+
+static unsigned int inka_digin_get_input(void)
+{
+ return in_8(GPIO_BASE + 0) << 0 | in_8(GPIO_BASE + 1) << 8 |
+ in_8(GPIO_BASE + 2) << 16 | in_8(GPIO_BASE + 3) << 24;
+}
+
+#define LED_HIGH(NUM) \
+ do { \
+ setbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
+ } while (0)
+
+#define LED_LOW(NUM) \
+ do { \
+ clrbits_be32((unsigned *)MPC5XXX_GPT##NUM##_ENABLE, 0x10); \
+ } while (0)
+
+#define CHECK_LED(NUM) \
+ do { \
+ if (state & (1 << NUM)) { \
+ LED_HIGH(NUM); \
+ } else { \
+ LED_LOW(NUM); \
+ } \
+ } while (0)
+
+static void inka_digio_set_output(unsigned int state, int which)
+{
+ volatile struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+
+ if (which == 0) {
+ /* other */
+ CHECK_LED(0);
+ CHECK_LED(1);
+ CHECK_LED(2);
+ CHECK_LED(3);
+ CHECK_LED(4);
+ CHECK_LED(5);
+ } else {
+ if (which == 1) {
+ /* drawer1 */
+ if (state) {
+ clrbits_be32(&gpio->simple_dvo, 0x1000);
+ udelay(1);
+ setbits_be32(&gpio->simple_dvo, 0x1000);
+ } else {
+ setbits_be32(&gpio->simple_dvo, 0x1000);
+ udelay(1);
+ clrbits_be32(&gpio->simple_dvo, 0x1000);
+ }
+ }
+ if (which == 2) {
+ /* drawer 2 */
+ if (state) {
+ clrbits_be32(&gpio->simple_dvo, 0x2000);
+ udelay(1);
+ setbits_be32(&gpio->simple_dvo, 0x2000);
+ } else {
+ setbits_be32(&gpio->simple_dvo, 0x2000);
+ udelay(1);
+ clrbits_be32(&gpio->simple_dvo, 0x2000);
+ }
+ }
+ }
+ udelay(1);
+}
+
+static int do_inkadiag_io(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *argv[]) {
+ unsigned int state, val;
+
+ switch (argc) {
+ case 3:
+ /* Write a value */
+ val = simple_strtol(argv[2], NULL, 16);
+
+ if (strcmp(argv[1], "drawer1") == 0) {
+ inka_digio_set_output(val, 1);
+ } else if (strcmp(argv[1], "drawer2") == 0) {
+ inka_digio_set_output(val, 2);
+ } else if (strcmp(argv[1], "other") == 0)
+ inka_digio_set_output(val, 0);
+ else {
+ printf("Invalid argument: %s\n", argv[1]);
+ return -1;
+ }
+ /* fall through */
+ case 2:
+ /* Read a value */
+ state = inka_digin_get_input();
+
+ if (strcmp(argv[1], "drawer1") == 0) {
+ val = (state & DIGIN_DRAWER_SW1) >> (ffs(DIGIN_DRAWER_SW1) - 1);
+ } else if (strcmp(argv[1], "drawer2") == 0) {
+ val = (state & DIGIN_DRAWER_SW2) >> (ffs(DIGIN_DRAWER_SW2) - 1);
+ } else if (strcmp(argv[1], "other") == 0) {
+ val = ((state & DIGIN_KEYB_MASK) >> (ffs(DIGIN_KEYB_MASK) - 1))
+ | (state & DIGIN_TOUCHSCR_MASK) >> (ffs(DIGIN_TOUCHSCR_MASK) - 2);
+ } else {
+ printf("Invalid argument: %s\n", argv[1]);
+ return -1;
+ }
+ printf("exit code: 0x%X\n", val);
+ return 0;
+ default:
+ cmd_usage(cmdtp);
+ break;
+ }
+
+ return -1;
+}
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int ser_init(volatile struct mpc5xxx_psc *psc, int baudrate)
+{
+ unsigned long baseclk;
+ int div;
+
+ /* reset PSC */
+ out_8(&psc->command, PSC_SEL_MODE_REG_1);
+
+ /* select clock sources */
+
+ out_be16(&psc->psc_clock_select, 0);
+ baseclk = (gd->ipb_clk + 16) / 32;
+
+ /* switch to UART mode */
+ out_be32(&psc->sicr, 0);
+
+ /* configure parity, bit length and so on */
+
+ out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
+ out_8(&psc->mode, PSC_MODE_ONE_STOP);
+
+ /* set up UART divisor */
+ div = (baseclk + (baudrate / 2)) / baudrate;
+ out_8(&psc->ctur, (div >> 8) & 0xff);
+ out_8(&psc->ctlr, div & 0xff);
+
+ /* disable all interrupts */
+ out_be16(&psc->psc_imr, 0);
+
+ /* reset and enable Rx/Tx */
+ out_8(&psc->command, PSC_RST_RX);
+ out_8(&psc->command, PSC_RST_TX);
+ out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
+
+ return 0;
+}
+
+static void ser_putc(volatile struct mpc5xxx_psc *psc, const char c)
+{
+ /* Wait 1 second for last character to go. */
+ int i = 0;
+
+ while (!(psc->psc_status & PSC_SR_TXEMP) && (i++ < 1000000/10))
+ udelay(10);
+ psc->psc_buffer_8 = c;
+
+}
+
+static int ser_getc(volatile struct mpc5xxx_psc *psc)
+{
+ /* Wait for a character to arrive. */
+ int i = 0;
+
+ while (!(in_be16(&psc->psc_status) & PSC_SR_RXRDY) && (i++ < 1000000/10))
+ udelay(10);
+
+ return in_8(&psc->psc_buffer_8);
+}
+
+static int do_inkadiag_serial(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *argv[]) {
+ volatile struct NS16550 *uart;
+ volatile struct mpc5xxx_psc *psc;
+ unsigned int num, mode;
+ int combrd, baudrate, i, j, len;
+ int address;
+
+ if (argc < 5) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ argc--;
+ argv++;
+
+ num = simple_strtol(argv[0], NULL, 0);
+ if (num < 0 || num > 11) {
+ printf("invalid argument for num: %d\n", num);
+ return -1;
+ }
+
+ mode = simple_strtol(argv[1], NULL, 0);
+
+ combrd = 0;
+ baudrate = simple_strtoul(argv[2], NULL, 10);
+ for (i=0; i<N_BAUDRATES; ++i) {
+ if (baudrate == baudrate_table[i])
+ break;
+ }
+ if (i == N_BAUDRATES) {
+ printf("## Baudrate %d bps not supported\n",
+ baudrate);
+ return 1;
+ }
+ combrd = 115200 / baudrate;
+
+ uart = (struct NS16550 *)(SERIAL_PORT_BASE + (num << 3));
+
+ printf("Testing uart %d.\n\n", num);
+
+ if ((num >= 0) && (num <= 7)) {
+ if (mode & 1) {
+ /* turn on 'loopback' mode */
+ out_8(&uart->mcr, MCR_LOOP);
+ } else {
+ /*
+ * establish the UART's operational parameters
+ * set DLAB=1, so rbr accesses DLL
+ */
+ out_8(&uart->lcr, LCR_DLAB);
+ /* set baudrate */
+ out_8(&uart->rbr, combrd);
+ /* set data-format: 8-N-1 */
+ out_8(&uart->lcr, LCR_WLS_8);
+ }
+
+ if (mode & 2) {
+ /* set request to send */
+ out_8(&uart->mcr, MCR_RTS);
+ udelay(10);
+ /* check clear to send */
+ if ((in_8(&uart->msr) & MSR_CTS) == 0x00)
+ return -1;
+ }
+ if (mode & 4) {
+ /* set data terminal ready */
+ out_8(&uart->mcr, MCR_DTR);
+ udelay(10);
+ /* check data set ready and carrier detect */
+ if ((in_8(&uart->msr) & (MSR_DSR | MSR_DCD))
+ != (MSR_DSR | MSR_DCD))
+ return -1;
+ }
+
+ /* write each message-character, read it back, and display it */
+ for (i = 0, len = strlen(argv[3]); i < len; ++i) {
+ j = 0;
+ while ((in_8(&uart->lsr) & LSR_THRE) == 0x00) {
+ if (j++ > CONFIG_SYS_HZ)
+ break;
+ udelay(10);
+ }
+ out_8(&uart->rbr, argv[3][i]);
+ j = 0;
+ while ((in_8(&uart->lsr) & LSR_DR) == 0x00) {
+ if (j++ > CONFIG_SYS_HZ)
+ break;
+ udelay(10);
+ }
+ printf("%c", in_8(&uart->rbr));
+ }
+ printf("\n\n");
+ out_8(&uart->mcr, 0x00);
+ } else {
+ address = 0;
+
+ switch (num) {
+ case 8:
+ address = MPC5XXX_PSC6;
+ break;
+ case 9:
+ address = MPC5XXX_PSC3;
+ break;
+ case 10:
+ address = MPC5XXX_PSC2;
+ break;
+ case 11:
+ address = MPC5XXX_PSC1;
+ break;
+ }
+ psc = (struct mpc5xxx_psc *)address;
+ ser_init(psc, simple_strtol(argv[2], NULL, 0));
+ if (mode & 2) {
+ /* set request to send */
+ out_8(&psc->op0, PSC_OP0_RTS);
+ udelay(10);
+ /* check clear to send */
+ if ((in_8(&psc->ip) & PSC_IPCR_CTS) == 0)
+ return -1;
+ }
+ len = strlen(argv[3]);
+ for (i = 0; i < len; ++i) {
+ ser_putc(psc, argv[3][i]);
+ printf("%c", ser_getc(psc));
+ }
+ printf("\n\n");
+ }
+ return 0;
+}
+
+#define BUZZER_GPT (MPC5XXX_GPT + 0x60) /* GPT6 */
+static void buzzer_turn_on(unsigned int freq)
+{
+ volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
+
+ const u32 prescale = gd->ipb_clk / freq / 128;
+ const u32 count = 128;
+ const u32 width = 64;
+
+ gpt->cir = (prescale << 16) | count;
+ gpt->pwmcr = width << 16;
+ gpt->emsr = 3; /* Timer enabled for PWM */
+}
+
+static void buzzer_turn_off(void)
+{
+ volatile struct mpc5xxx_gpt *gpt = (struct mpc5xxx_gpt *)(BUZZER_GPT);
+
+ gpt->emsr = 0;
+}
+
+static int do_inkadiag_buzzer(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *argv[]) {
+
+ unsigned int period, freq;
+ int prev, i;
+
+ if (argc != 3) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ argc--;
+ argv++;
+
+ period = simple_strtol(argv[0], NULL, 0);
+ if (!period)
+ printf("Zero period is senseless\n");
+ argc--;
+ argv++;
+
+ freq = simple_strtol(argv[0], NULL, 0);
+ /* avoid zero prescale in buzzer_turn_on() */
+ if (freq > gd->ipb_clk / 128) {
+ printf("%dHz exceeds maximum (%ldHz)\n", freq,
+ gd->ipb_clk / 128);
+ } else if (!freq)
+ printf("Zero frequency is senseless\n");
+ else
+ buzzer_turn_on(freq);
+
+ clear_ctrlc();
+ prev = disable_ctrlc(0);
+
+ printf("Buzzing for %d ms. Type ^C to abort!\n\n", period);
+
+ i = 0;
+ while (!ctrlc() && (i++ < CONFIG_SYS_HZ))
+ udelay(period);
+
+ clear_ctrlc();
+ disable_ctrlc(prev);
+
+ buzzer_turn_off();
+
+ return 0;
+}
+
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
+
+cmd_tbl_t cmd_inkadiag_sub[] = {
+ U_BOOT_CMD_MKENT(io, 1, 1, do_inkadiag_io, "read digital input",
+ "<drawer1|drawer2|other> [value] - get or set specified signal\n"),
+ U_BOOT_CMD_MKENT(serial, 4, 1, do_inkadiag_serial, "test serial port",
+ "<num> <mode> <baudrate> <msg> - test uart num [0..11] in mode\n"
+ "and baudrate with msg\n"),
+ U_BOOT_CMD_MKENT(buzzer, 2, 1, do_inkadiag_buzzer, "activate buzzer",
+ "<period> <freq> - turn buzzer on for period ms with freq hz\n"),
+ U_BOOT_CMD_MKENT(help, 4, 1, do_inkadiag_help, "get help",
+ "[command] - get help for command\n"),
+};
+
+static int do_inkadiag_help(cmd_tbl_t *cmdtp, int flag,
+ int argc, char *argv[]) {
+ extern int _do_help (cmd_tbl_t *cmd_start, int cmd_items,
+ cmd_tbl_t *cmdtp, int flag,
+ int argc, char *argv[]);
+ /* do_help prints command name - we prepend inkadiag to our subcommands! */
+#ifdef CONFIG_SYS_LONGHELP
+ puts ("inkadiag ");
+#endif
+ return _do_help(&cmd_inkadiag_sub[0],
+ ARRAY_SIZE(cmd_inkadiag_sub), cmdtp, flag, argc, argv);
+}
+
+static int do_inkadiag(cmd_tbl_t *cmdtp, int flag, int argc,
+ char *argv[]) {
+ cmd_tbl_t *c;
+
+ c = find_cmd_tbl(argv[1], &cmd_inkadiag_sub[0], ARRAY_SIZE(cmd_inkadiag_sub));
+
+ if (c) {
+ argc--;
+ argv++;
+ return c->cmd(c, flag, argc, argv);
+ } else {
+ /* Unrecognized command */
+ cmd_usage(cmdtp);
+ return 1;
+ }
+}
+
+U_BOOT_CMD(inkadiag, 6, 1, do_inkadiag,
+ "inkadiag - inka diagnosis\n",
+ "[inkadiag what ...]\n"
+ " - perform a diagnosis on inka hardware\n"
+ "'inkadiag' performs hardware tests.\n\n");
+
+/* Relocate the command table function pointers when running in RAM */
+int inkadiag_init_r (void) {
+ cmd_tbl_t *cmdtp;
+
+ for (cmdtp = &cmd_inkadiag_sub[0]; cmdtp !=
+ &cmd_inkadiag_sub[ARRAY_SIZE(cmd_inkadiag_sub)]; cmdtp++) {
+ ulong addr;
+
+ addr = (ulong) (cmdtp->cmd) + gd->reloc_off;
+ cmdtp->cmd = (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
+
+ addr = (ulong)(cmdtp->name) + gd->reloc_off;
+ cmdtp->name = (char *)addr;
+
+ if (cmdtp->usage) {
+ addr = (ulong)(cmdtp->usage) + gd->reloc_off;
+ cmdtp->usage = (char *)addr;
+ }
+#ifdef CONFIG_SYS_LONGHELP
+ if (cmdtp->help) {
+ addr = (ulong)(cmdtp->help) + gd->reloc_off;
+ cmdtp->help = (char *)addr;
+ }
+#endif
+ }
+ return 0;
+}
diff --git a/include/configs/inka4x0.h b/include/configs/inka4x0.h
index e42fa6d..b80796d 100644
--- a/include/configs/inka4x0.h
+++ b/include/configs/inka4x0.h
@@ -39,6 +39,7 @@
#define BOOTFLAG_WARM 0x02 /* Software reboot */
#define CONFIG_MISC_INIT_F 1 /* Use misc_init_f() */
+#define CONFIG_MISC_INIT_R 1 /* Use misc_init_r() */
#define CONFIG_HIGH_BATS 1 /* High BATs supported */
diff --git a/include/ns16550.h b/include/ns16550.h
index e6ade61..edfbc53 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -123,6 +123,7 @@ typedef volatile struct NS16550 *NS16550_t;
#define MCR_RTS 0x02
#define MCR_DMA_EN 0x04
#define MCR_TX_DFR 0x08
+#define MCR_LOOP 0x10 /* Enable loopback test mode */
#define LCR_WLS_MSK 0x03 /* character length select mask */
#define LCR_WLS_5 0x00 /* 5 bit character length */
@@ -135,6 +136,7 @@ typedef volatile struct NS16550 *NS16550_t;
#define LCR_STKP 0x20 /* Stick Parity */
#define LCR_SBRK 0x40 /* Set Break */
#define LCR_BKSE 0x80 /* Bank select enable */
+#define LCR_DLAB 0x80 /* Divisor latch access bit */
#define LSR_DR 0x01 /* Data ready */
#define LSR_OE 0x02 /* Overrun */
@@ -145,6 +147,15 @@ typedef volatile struct NS16550 *NS16550_t;
#define LSR_TEMT 0x40 /* Xmitter empty */
#define LSR_ERR 0x80 /* Error */
+#define MSR_DCD 0x80 /* Data Carrier Detect */
+#define MSR_RI 0x40 /* Ring Indicator */
+#define MSR_DSR 0x20 /* Data Set Ready */
+#define MSR_CTS 0x10 /* Clear to Send */
+#define MSR_DDCD 0x08 /* Delta DCD */
+#define MSR_TERI 0x04 /* Trailing edge ring indicator */
+#define MSR_DDSR 0x02 /* Delta DSR */
+#define MSR_DCTS 0x01 /* Delta CTS */
+
#ifdef CONFIG_OMAP1510
#define OSC_12M_SEL 0x01 /* selects 6.5 * current clk div */
#endif
--
1.6.0.6
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