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Ladislav B?bel ([email protected]) just uploaded a new patch set to Gerrit, 
which you can find at http://openocd.zylin.com/2072

-- gerrit

commit cd183476f625c47df61e4c9e9df66c6fce290d2b
Author: Ladislav Bábel <[email protected]>
Date:   Sat Mar 29 20:08:42 2014 +0100

    Add new flash driver for Silicon Laboratories SiM3 microcontroller family
    
    New driver
    New script only for stlik for now
    Driver added to the documentation and to the README
    
    Change-Id: I9b4b9533b4df9a822e50052c753662ce047e3467
    Signed-off-by: Ladislav Bábel <[email protected]>

diff --git a/README b/README
index 645ff65..1f28a07 100644
--- a/README
+++ b/README
@@ -123,7 +123,7 @@ Flash drivers
 -------------
 
 ADUC702x, AT91SAM, AVR, CFI, DSP5680xx, EFM32, EM357, FM3, Kinetis,
-LPC2000, LPC2900, LPCSPIFI, Milandr, NuMicro, PIC32mx, Stellaris,
+LPC2000, LPC2900, LPCSPIFI, Milandr, NuMicro, PIC32mx, SiM3x, Stellaris,
 STM32, STMSMI, STR7x, STR9x, nRF51; NAND controllers of AT91SAM9, LPC3180,
 LPC32xx, i.MX31, MXC, NUC910, Orion/Kirkwood, S3C24xx, S3C6400.
 
diff --git a/doc/openocd.texi b/doc/openocd.texi
index 3977454..310ba6b 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -1448,49 +1448,49 @@ When a chip has multiple TAPs (maybe it has both ARM 
and DSP cores),
 the target config file defines all of them.
 @example
 $ ls target
-aduc702x.cfg                       lpc1763.cfg
-am335x.cfg                         lpc1764.cfg
-amdm37x.cfg                        lpc1765.cfg
-ar71xx.cfg                         lpc1766.cfg
-at32ap7000.cfg                     lpc1767.cfg
-at91r40008.cfg                     lpc1768.cfg
-at91rm9200.cfg                     lpc1769.cfg
-at91sam3ax_4x.cfg                  lpc1788.cfg
-at91sam3ax_8x.cfg                  lpc17xx.cfg
-at91sam3ax_xx.cfg                  lpc1850.cfg
-at91sam3nXX.cfg                    lpc2103.cfg
-at91sam3sXX.cfg                    lpc2124.cfg
-at91sam3u1c.cfg                    lpc2129.cfg
-at91sam3u1e.cfg                    lpc2148.cfg
-at91sam3u2c.cfg                    lpc2294.cfg
-at91sam3u2e.cfg                    lpc2378.cfg
-at91sam3u4c.cfg                    lpc2460.cfg
-at91sam3u4e.cfg                    lpc2478.cfg
-at91sam3uxx.cfg                    lpc2900.cfg
-at91sam3XXX.cfg                    lpc2xxx.cfg
-at91sam4sd32x.cfg                  lpc3131.cfg
-at91sam4sXX.cfg                    lpc3250.cfg
-at91sam4XXX.cfg                    lpc4350.cfg
-at91sam7se512.cfg                  lpc4350.cfg.orig
-at91sam7sx.cfg                     mc13224v.cfg
-at91sam7x256.cfg                   nuc910.cfg
-at91sam7x512.cfg                   omap2420.cfg
-at91sam9260.cfg                    omap3530.cfg
-at91sam9260_ext_RAM_ext_flash.cfg  omap4430.cfg
-at91sam9261.cfg                    omap4460.cfg
-at91sam9263.cfg                    omap5912.cfg
-at91sam9.cfg                       omapl138.cfg
-at91sam9g10.cfg                    pic32mx.cfg
-at91sam9g20.cfg                    pxa255.cfg
-at91sam9g45.cfg                    pxa270.cfg
-at91sam9rl.cfg                     pxa3xx.cfg
-atmega128.cfg                      readme.txt
-avr32.cfg                          samsung_s3c2410.cfg
-c100.cfg                           samsung_s3c2440.cfg
-c100config.tcl                     samsung_s3c2450.cfg
-c100helper.tcl                     samsung_s3c4510.cfg
-c100regs.tcl                       samsung_s3c6410.cfg
-cs351x.cfg                         sharp_lh79532.cfg
+aduc702x.cfg                       lpc1764.cfg
+am335x.cfg                         lpc1765.cfg
+amdm37x.cfg                        lpc1766.cfg
+ar71xx.cfg                         lpc1767.cfg
+at32ap7000.cfg                     lpc1768.cfg
+at91r40008.cfg                     lpc1769.cfg
+at91rm9200.cfg                     lpc1788.cfg
+at91sam3ax_4x.cfg                  lpc17xx.cfg
+at91sam3ax_8x.cfg                  lpc1850.cfg
+at91sam3ax_xx.cfg                  lpc2103.cfg
+at91sam3nXX.cfg                    lpc2124.cfg
+at91sam3sXX.cfg                    lpc2129.cfg
+at91sam3u1c.cfg                    lpc2148.cfg
+at91sam3u1e.cfg                    lpc2294.cfg
+at91sam3u2c.cfg                    lpc2378.cfg
+at91sam3u2e.cfg                    lpc2460.cfg
+at91sam3u4c.cfg                    lpc2478.cfg
+at91sam3u4e.cfg                    lpc2900.cfg
+at91sam3uxx.cfg                    lpc2xxx.cfg
+at91sam3XXX.cfg                    lpc3131.cfg
+at91sam4sd32x.cfg                  lpc3250.cfg
+at91sam4sXX.cfg                    lpc4350.cfg
+at91sam4XXX.cfg                    lpc4350.cfg.orig
+at91sam7se512.cfg                  mc13224v.cfg
+at91sam7sx.cfg                     nuc910.cfg
+at91sam7x256.cfg                   omap2420.cfg
+at91sam7x512.cfg                   omap3530.cfg
+at91sam9260.cfg                    omap4430.cfg
+at91sam9260_ext_RAM_ext_flash.cfg  omap4460.cfg
+at91sam9261.cfg                    omap5912.cfg
+at91sam9263.cfg                    omapl138.cfg
+at91sam9.cfg                       pic32mx.cfg
+at91sam9g10.cfg                    pxa255.cfg
+at91sam9g20.cfg                    pxa270.cfg
+at91sam9g45.cfg                    pxa3xx.cfg
+at91sam9rl.cfg                     readme.txt
+atmega128.cfg                      samsung_s3c2410.cfg
+avr32.cfg                          samsung_s3c2440.cfg
+c100.cfg                           samsung_s3c2450.cfg
+c100config.tcl                     samsung_s3c4510.cfg
+c100helper.tcl                     samsung_s3c6410.cfg
+c100regs.tcl                       sharp_lh79532.cfg
+cs351x.cfg                         sim3x_stlink.cfg
 davinci.cfg                        smp8634.cfg
 dragonite.cfg                      spear3xx.cfg
 dsp56321.cfg                       stellaris.cfg
@@ -1525,6 +1525,7 @@ lpc1754.cfg                        ti_dm6446.cfg
 lpc1756.cfg                        tmpa900.cfg
 lpc1758.cfg                        tmpa910.cfg
 lpc1759.cfg                        u8500.cfg
+lpc1763.cfg
 @end example
 @item @emph{more} ... browse for other library files which may be useful.
 For example, there are various generic and CPU-specific utilities.
@@ -5605,6 +5606,18 @@ flash bank $_FLASHNAME fm3 0 0 0 0 $_TARGETNAME
 @end example
 @end deffn
 
+@deffn {Flash Driver} sim3x
+All members of the SiM3 microcontroller family from Silicon Laboratories
+include internal flash and use ARM Cortex M3 cores.
+The @var{sim3x} driver uses the @var{size} parameter to select the
+correct size of flash bank. If @var{size} is set to 0, default flash bank size
+256kB will be used. Autodetection does not work properly yet.
+
+@example
+flash bank $_FLASHNAME sim3x 0 $_CPUROMSIZE 0 0 $_TARGETNAME
+@end example
+@end deffn
+
 @subsection str9xpec driver
 @cindex str9xpec
 
diff --git a/src/flash/nor/Makefile.am b/src/flash/nor/Makefile.am
old mode 100644
new mode 100755
index 3168147..b10393b
--- a/src/flash/nor/Makefile.am
+++ b/src/flash/nor/Makefile.am
@@ -43,7 +43,8 @@ NOR_DRIVERS = \
        kinetis.c \
        mini51.c \
        nuc1x.c \
-       nrf51.c
+       nrf51.c \
+       sim3x.c
 
 noinst_HEADERS = \
        core.h \
diff --git a/src/flash/nor/drivers.c b/src/flash/nor/drivers.c
old mode 100644
new mode 100755
index ed631a3..817ea5b
--- a/src/flash/nor/drivers.c
+++ b/src/flash/nor/drivers.c
@@ -56,6 +56,7 @@ extern struct flash_driver mdr_flash;
 extern struct flash_driver mini51_flash;
 extern struct flash_driver nuc1x_flash;
 extern struct flash_driver nrf51_flash;
+extern struct flash_driver sim3x_flash;
 
 /**
  * The list of built-in flash drivers.
@@ -96,6 +97,7 @@ static struct flash_driver *flash_drivers[] = {
        &mini51_flash,
        &nuc1x_flash,
        &nrf51_flash,
+       &sim3x_flash,
        NULL,
 };
 
diff --git a/src/flash/nor/sim3x.c b/src/flash/nor/sim3x.c
new file mode 100755
index 0000000..32bae0f
--- /dev/null
+++ b/src/flash/nor/sim3x.c
@@ -0,0 +1,754 @@
+/***************************************************************************
+ *   Copyright (C) 2014 by Ladislav B�bel                                  *
+ *   [email protected]                                                   *
+ *                                                                         *
+ *   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.             *
+ ***************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "imp.h"
+#include <helper/binarybuffer.h>
+#include <helper/time_support.h>
+#include <target/algorithm.h>
+#include <target/cortex_m.h>
+
+/* Device auto detection is not working for now,
+ * because reading of DEVICEID is not working correct.
+ * The reason is commented in the code below
+ */
+/* #define DEVICE_AUTO_DETECTION */
+
+/* SI32_DEVICEID0 */
+#define DEVICEID0_DEVICEID0 (0x400490C0)
+#define DEVICEID0_DEVICEID1 (0x400490D0)
+#define DEVICEID0_DEVICEID2 (0x400490E0)
+#define DEVICEID0_DEVICEID3 (0x400490F0)
+
+/* Flash */
+#define FLASH_BASE_ADDRESS (0x00000000)
+#define LOCK_WORD_ADDRESS (0x0003FFFC)
+
+/* SI32_FLASHCTRL_0 */
+#define FLASHCTRL0_CONFIG ( (struct sim3x_register_all_set_clr *)0x4002E000 )
+#define FLASHCTRL0_CONFIG_ERASEEN_MASK (0x00040000)
+#define FLASHCTRL0_CONFIG_BUSYF_MASK (0x00100000)
+
+#define FLASHCTRL0_WRADDR (0x4002E0A0)
+#define FLASHCTRL0_WRDATA (0x4002E0B0)
+
+#define FLASHCTRL0_KEY (0x4002E0C0)
+#define FLASHCTRL0_KEY_INITIAL_UNLOCK (0x000000A5)
+#define FLASHCTRL0_KEY_SINGLE_UNLOCK (0x000000F1)
+#define FLASHCTRL0_KEY_MULTIPLE_UNLOCK (0x000000F2)
+#define FLASHCTRL0_KEY_MULTIPLE_LOCK (0x0000005A)
+
+#define FLASH_BUSY_TIMEOUT (100)
+
+/* SI32_RSTSRC_0 */
+#define RSTSRC0_RESETEN ( (struct sim3x_register_all_set_clr *)0x4002D060 )
+#define RSTSRC0_RESETEN_VMONREN_MASK  (0x00000004)
+#define RSTSRC0_RESETEN_SWREN_MASK (0x00000040)
+
+/* SI32_VMON_0 */
+#define VMON0_CONTROL ( (struct sim3x_register_all_set_clr *)0x4002F000 )
+#define VMON0_CONTROL_VMONEN_MASK (0x80000000)
+
+/* SI32_CLKCTRL_0 */
+#define CLKCTRL0_APBCLKG0 ( (struct sim3x_register_all_set_clr *)0x4002D020 )
+#define CLKCTRL0_APBCLKG0_FLCTRLCEN_MASK (0x40000000)
+
+/* SI32_WDTIMER_0 */
+#define WDTIMER0_CONTROL ( (struct sim3x_register_all_set_clr *)0x40030000 )
+#define WDTIMER0_CONTROL_DBGMD_MASK (0x00000002)
+
+#define WDTIMER0_STATUS ( (sim3x_register_all_set_clr *)0x40030010 )
+#define WDTIMER0_STATUS_KEYSTS_MASK (0x00000001)
+#define WDTIMER0_STATUS_PRIVSTS_MASK (0x00000002)
+
+#define WDTIMER0_THRESHOLD (0x40030020)
+
+#define WDTIMER0_WDTKEY (0x40030030)
+#define WDTIMER0_KEY_ATTN (0x000000A5)
+#define WDTIMER0_KEY_WRITE (0x000000F1)
+#define WDTIMER0_KEY_RESET (0x000000CC)
+#define WDTIMER0_KEY_DISABLE (0x000000DD)
+#define WDTIMER0_KEY_START (0x000000EE)
+#define WDTIMER0_KEY_LOCK (0x000000FF)
+
+struct sim3x_register_all_set_clr {
+       uint32_t all;
+       uint32_t set;
+       uint32_t clr;
+};
+
+struct sim3x_info {
+       int probed;
+       int flash_locked;
+       uint16_t flash_size_kb;
+       uint16_t flash_page_size;
+       uint16_t ram_size_kb;
+       uint16_t part_number;
+       char part_family;
+       uint8_t device_revision;
+       char device_package[4];
+};
+
+static int sim3x_flash_lock_check(struct flash_bank *bank) {
+       int ret;
+       uint32_t lock_word;
+
+       ret = target_read_u32(bank->target, LOCK_WORD_ADDRESS, &lock_word);
+       if (ERROR_OK != ret) {
+               LOG_ERROR("Can not read Lock Word");
+               return ret;
+       }
+
+       if(lock_word == 0xFFFFFFFF) {
+               lock_word = 0; /* Unlocked */
+       } else {
+               lock_word = 1; /* Locked */
+       }
+
+       ((struct sim3x_info *) bank->driver_priv)->flash_locked = lock_word;
+
+       return ERROR_OK;
+}
+
+static int sim3x_read_info(struct flash_bank *bank) {
+       int ret;
+       uint32_t cpuid = 0;
+       struct sim3x_info * sim3x_info;
+
+#ifdef DEVICE_AUTO_DETECTION
+       uint32_t device_id;
+       int part_number;
+       char part_num_string[4];
+#endif
+
+       sim3x_info = bank->driver_priv;
+
+       /* Core check */
+       ret = target_read_u32(bank->target, CPUID, &cpuid);
+       if (ERROR_OK != ret)
+               return ret;
+
+       if (((cpuid >> 4) & 0xfff) != 0xc23) {
+               LOG_ERROR("Target is not CortexM3");
+               return ERROR_FAIL;
+       }
+
+#ifdef DEVICE_AUTO_DETECTION
+       /* Autodetection does not work,
+        * because unexpected values are read from MCU
+        */
+
+       /* MCU check */
+       ret = target_read_u32(bank->target, DEVICEID0_DEVICEID2, &device_id);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* According to the documentation DEVICEID2 must by 0x00004D33 (..M3),
+        * but in my case it is 0x4DF79C9D
+        */
+       if(device_id != 0x00004D33) {
+               LOG_ERROR("Unsupported MCU");
+               return ERROR_FAIL;
+       }
+
+       /* Family and Part number */
+       ret = target_read_u32(bank->target, DEVICEID0_DEVICEID1, &device_id);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* According to the documentation DEVICEID1 looks for example like this 
0x55313637 (U167),
+        * but in my case it is 0x11E1BCCF
+        */
+       part_num_string[0] = device_id >> 16;
+       part_num_string[1] = device_id >> 8;
+       part_num_string[2] = device_id;
+       part_num_string[3] = 0;
+
+       part_number = atoi(part_num_string);
+
+       if (!isalpha(device_id >> 24) || part_number < 100 || part_number > 
999) {
+               LOG_ERROR("Unsupported MCU");
+               return ERROR_FAIL;
+       }
+
+       sim3x_info->part_family = device_id >> 24;
+       sim3x_info->part_number = part_number;
+
+       /* Package and Revision */
+       ret = target_read_u32(bank->target, DEVICEID0_DEVICEID0, &device_id);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* According to the documentation DEVICEID0 looks for example like this 
0x51000001 (package = Q, revision = 1(B)),
+        * but in my case it is 0x2F6466D9
+        */
+       sim3x_info->device_package[0] = device_id >> 24;
+       sim3x_info->device_package[1] = device_id >> 16;
+       sim3x_info->device_package[2] = device_id >> 8;
+       sim3x_info->device_package[3] = 0;
+
+       sim3x_info->device_revision = device_id;
+#else
+       /* hardcoded to SiM3U167-B-GQ for now */
+       sim3x_info->part_family = 'U';
+       sim3x_info->part_number = 167;
+       sim3x_info->device_package[0] = 'Q';
+       sim3x_info->device_package[1] = 0;
+       sim3x_info->device_package[2] = 0;
+       sim3x_info->device_package[3] = 0;
+       sim3x_info->device_revision = 1;
+#endif
+
+       /* Flash lock */
+       ret = sim3x_flash_lock_check(bank);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Size can not by selected automatically,
+        * because device auto detection is not working
+        */
+       sim3x_info->ram_size_kb = 32;
+       sim3x_info->flash_size_kb = bank->size == 0 ? 256 : bank->size / 1024;
+       sim3x_info->flash_page_size = 1024;
+
+       return ERROR_OK;
+}
+
+/* flash bank sim3x 0 0 0 0 <target#> */
+FLASH_BANK_COMMAND_HANDLER(sim3x_flash_bank_command) {
+       struct sim3x_info * sim3x_info;
+
+       if (CMD_ARGC < 6)
+               return ERROR_COMMAND_SYNTAX_ERROR;
+
+       sim3x_info = malloc(sizeof(struct sim3x_info));
+       sim3x_info->probed = 0;
+       bank->driver_priv = sim3x_info;
+
+       return ERROR_OK;
+}
+
+static int sim3x_erase_page(struct flash_bank *bank, uint32_t addr) {
+       int ret, i;
+       uint32_t temp;
+       struct target * target;
+
+       target = bank->target;
+
+       for(i = 0; i < FLASH_BUSY_TIMEOUT; i++) {
+               ret = target_read_u32(target, (uint32_t) 
&FLASHCTRL0_CONFIG->all, &temp);
+               if (ERROR_OK != ret)
+                       return ret;
+
+               if ((temp & FLASHCTRL0_CONFIG_BUSYF_MASK) == 0) { /* If is not 
busy */
+                       if ((temp & FLASHCTRL0_CONFIG_ERASEEN_MASK) == 0) { /* 
If erase is not enabled */
+                               /* Enter Flash Erase Mode */
+                               ret = target_write_u32(target,
+                                               (uint32_t) 
&FLASHCTRL0_CONFIG->set,
+                                               FLASHCTRL0_CONFIG_ERASEEN_MASK);
+                               if (ERROR_OK != ret)
+                                       return ret;
+                       }
+
+                       /* Write the address of the Flash page to WRADDR */
+                       ret = target_write_u32(target, FLASHCTRL0_WRADDR, addr);
+                       if (ERROR_OK != ret)
+                               return ret;
+
+                       /* Write the inital unlock value to KEY */
+                       ret = target_write_u32(target, FLASHCTRL0_KEY,
+                       FLASHCTRL0_KEY_INITIAL_UNLOCK);
+                       if (ERROR_OK != ret)
+                               return ret;
+
+                       /* Write the single unlock value to KEY */
+                       ret = target_write_u32(target, FLASHCTRL0_KEY,
+                       FLASHCTRL0_KEY_SINGLE_UNLOCK);
+                       if (ERROR_OK != ret)
+                               return ret;
+
+                       /* Write any value to WRDATA to initiate the page erase 
*/
+                       ret = target_write_u32(target, FLASHCTRL0_WRDATA, 0);
+                       if (ERROR_OK != ret)
+                               return ret;
+
+                       return ERROR_OK;
+               }
+
+               alive_sleep(1);
+       }
+
+       LOG_ERROR("timed out waiting for FLASHCTRL0_CONFIG_BUSYF");
+       return ERROR_FAIL;
+}
+
+static int sim3x_flash_erase(struct flash_bank *bank, int first, int last) {
+       int ret, i;
+
+       if (bank->target->state != TARGET_HALTED) {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       for (i = first; i <= last; i++) {
+               ret = sim3x_erase_page(bank, bank->sectors[i].offset);
+               if (ERROR_OK != ret)
+                       return ret;
+       }
+
+       return ERROR_OK;
+}
+
+static int sim3x_write_block(struct flash_bank *bank, const uint8_t *buf,
+               uint32_t offset, uint32_t count) /* count is count of half 
words (2 bytes)! */
+{
+       struct target *target = bank->target;
+       uint32_t buffer_size = 16384;
+       struct working_area *write_algorithm;
+       struct working_area *source;
+       uint32_t address = bank->base + offset;
+       struct reg_param reg_params[5];
+       struct armv7m_algorithm armv7m_info;
+       int ret = ERROR_OK;
+
+       static const uint8_t sim3x_flash_write_code[] = {
+               /* Disable erase operations (ERASEEN = 0) */
+               0x4F, 0xF4, 0x80, 0x26, /* mov     r6, #ERASEEN */
+               0x86, 0x60, /* str     r6, [r0, #FLASHCTRL_CONFIG + BIT_CLR] */
+
+               /* Write the initial unlock value to KEY (0xA5) */
+               0xA5, 0x26, /* movs    r6, #INITIAL_UNLOCK */
+               0xC0, 0xF8, 0xC0, 0x60, /* str     r6, [r0, #FLASHCTRL_KEY] */
+
+               /* Write the multiple unlock value to KEY (0xF2) */
+               0xF2, 0x26, /* movs    r6, #MULTIPLE_UNLOCK */
+               0xC0, 0xF8, 0xC0, 0x60, /* str     r6, [r0, #FLASHCTRL_KEY] */
+
+               /* wait_fifo: */
+               0x16, 0x68, /* ldr     r6, [r2, #0] */
+               0x00, 0x2E, /* cmp     r6, #0 */
+               0x16, 0xD0, /* beq     exit */
+               0x55, 0x68, /* ldr     r5, [r2, #4] */
+               0xB5, 0x42, /* cmp     r5, r6 */
+               0xF9, 0xD0, /* beq     wait_fifo */
+
+               /* wait for BUSYF flag */
+               /* wait_busy: */
+               0x06, 0x68, /* ldr     r6, [r0, #FLASHCTRL_CONFIG] */
+               0x16, 0xF4, 0x80, 0x1F, /* tst     r6, #BUSYF */
+               0xFB, 0xD1, /* bne     wait_busy */
+
+               /* Write the destination address to WRADDR */
+               0xC0, 0xF8, 0xA0, 0x40, /* str     r4, [r0, #FLASHCTRL_WRADDR] 
*/
+
+               /* Write the data half-word to WRDATA in right-justified format 
*/
+               0x2E, 0x88, /* ldrh    r6, [r5] */
+               0xC0, 0xF8, 0xB0, 0x60, /* str     r6, [r0, #FLASHCTRL_WRDATA] 
*/
+
+               0x02, 0x35, /* adds    r5, #2 */
+               0x02, 0x34, /* adds    r4, #2 */
+
+               /* wrap rp at end of buffer */
+               0x9D, 0x42, /* cmp     r5, r3 */
+               0x01, 0xD3, /* bcc     no_wrap */
+               0x15, 0x46, /* mov     r5, r2 */
+               0x08, 0x35, /* adds    r5, #8 */
+
+               /* no_wrap: */
+               0x55, 0x60, /* str     r5, [r2, #4] */
+               0x49, 0x1E, /* subs    r1, r1, #1 */
+               0x00, 0x29, /* cmp     r1, #0 */
+               0x00, 0xD0, /* beq     exit */
+               0xE5, 0xE7, /* b       wait_fifo */
+
+               /* exit: */
+               0x5A, 0x26, /* movs    r6, #MULTIPLE_LOCK */
+               0xC0, 0xF8, 0xC0, 0x60, /* str     r6, [r0, #FLASHCTRL_KEY] */
+               0x00, 0xBE /* bkpt    #0 */
+       };
+
+       /* flash write code */
+       if (target_alloc_working_area(target, sizeof(sim3x_flash_write_code),
+                       &write_algorithm) != ERROR_OK) {
+               LOG_WARNING("no working area available, can't do block memory 
writes");
+               return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+       }
+
+       ret = target_write_buffer(target, write_algorithm->address,
+                       sizeof(sim3x_flash_write_code), (uint8_t *) 
sim3x_flash_write_code);
+       if (ret != ERROR_OK)
+               return ret;
+
+       /* memory buffer */
+       while (target_alloc_working_area_try(target, buffer_size, &source)
+                       != ERROR_OK) {
+               buffer_size /= 2;
+               buffer_size &= ~1UL; /* Make sure it's 2 byte aligned */
+               if (buffer_size <= 256) {
+                       /* we already allocated the writing code, but failed to 
get a
+                        * buffer, free the algorithm
+                        */
+                       target_free_working_area(target, write_algorithm);
+
+                       LOG_WARNING("no large enough working area available, 
can't do block memory writes");
+                       return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+               }
+       }
+
+       init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT); /* flash base */
+       init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT); /* count */
+       init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT); /* buffer start */
+       init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT); /* buffer end */
+       init_reg_param(&reg_params[4], "r4", 32, PARAM_IN_OUT); /* target 
address */
+
+       buf_set_u32(reg_params[0].value, 0, 32, (uint32_t) 
&FLASHCTRL0_CONFIG->all);
+       buf_set_u32(reg_params[1].value, 0, 32, count);
+       buf_set_u32(reg_params[2].value, 0, 32, source->address);
+       buf_set_u32(reg_params[3].value, 0, 32, source->address + source->size);
+       buf_set_u32(reg_params[4].value, 0, 32, address);
+
+       armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
+       armv7m_info.core_mode = ARM_MODE_THREAD;
+
+       ret = target_run_flash_async_algorithm(target, buf, count, 2, 0, NULL, 
5,
+                       reg_params, source->address, source->size, 
write_algorithm->address,
+                       0, &armv7m_info);
+
+       if (ret == ERROR_FLASH_OPERATION_FAILED) {
+               LOG_ERROR("flash write failed at address 0x%"PRIx32,
+                       buf_get_u32(reg_params[4].value, 0, 32));
+       }
+
+       target_free_working_area(target, source);
+       target_free_working_area(target, write_algorithm);
+
+       destroy_reg_param(&reg_params[0]);
+       destroy_reg_param(&reg_params[1]);
+       destroy_reg_param(&reg_params[2]);
+       destroy_reg_param(&reg_params[3]);
+       destroy_reg_param(&reg_params[4]);
+
+       return ret;
+}
+
+static int sim3x_flash_write(struct flash_bank *bank, const uint8_t * buffer, 
uint32_t offset, uint32_t count) {
+       int ret;
+       struct target * target;
+       uint8_t *new_buffer = NULL;
+
+       target = bank->target;
+       if (target->state != TARGET_HALTED) {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       if (offset & 0x1) {
+               LOG_ERROR("offset 0x%" PRIx32 " breaks required 2-byte 
alignment", offset);
+               return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
+       }
+
+       if (count & 0x1) {
+               uint32_t old_count = count;
+               count++;
+               new_buffer = malloc(count);
+
+               if (new_buffer == NULL) {
+                       LOG_ERROR("odd number of bytes to write and no memory "
+                                       "for padding buffer");
+                       return ERROR_FAIL;
+               }
+               LOG_INFO("odd number of bytes to write (%d), extending to %d "
+                               "and padding with 0xff", old_count, count);
+
+               memset((uint8_t *)buffer, 0xff, count);
+               buffer = memcpy(new_buffer, buffer, old_count);
+       }
+
+       uint32_t half_words_remaining = count / 2;
+
+       ret = sim3x_write_block(bank, buffer, offset, half_words_remaining);
+
+       if (new_buffer)
+               free(new_buffer);
+
+       return ret;
+}
+
+static int sim3x_flash_protect(struct flash_bank *bank, int set, int first, 
int last) {
+       int ret;
+       uint32_t lock_word_number;
+       struct sim3x_info * sim3x_info;
+       struct target * target;
+
+       target = bank->target;
+       if (target->state != TARGET_HALTED) {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       sim3x_info = bank->driver_priv;
+       lock_word_number = 0xFFFFFFFE;
+
+       if (sim3x_info->flash_locked) {
+               LOG_INFO("Flash is already locked");
+       } else {
+               ret = sim3x_flash_write(bank, (uint8_t *)&lock_word_number, 
LOCK_WORD_ADDRESS, 4);
+               if (ERROR_OK != ret)
+                       return ret;
+
+               LOG_INFO("Flash locked");
+       }
+
+       return ERROR_OK;
+}
+
+static int sim3x_set_debug_mode(struct flash_bank *bank) {
+       int ret;
+       struct target * target;
+
+       target = bank->target;
+
+       /* Disable watchdog timer */
+       ret = target_write_u32(target, WDTIMER0_WDTKEY, WDTIMER0_KEY_ATTN);
+       if (ERROR_OK != ret)
+               return ret;
+
+       ret = target_write_u32(target, WDTIMER0_WDTKEY, WDTIMER0_KEY_DISABLE);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Enable one write command */
+       ret = target_write_u32(target, WDTIMER0_WDTKEY, WDTIMER0_KEY_ATTN);
+       if (ERROR_OK != ret)
+               return ret;
+
+       ret = target_write_u32(target, WDTIMER0_WDTKEY, WDTIMER0_KEY_WRITE);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Watchdog Timer Debug Mode */
+       ret = target_write_u32(target, (uint32_t) &WDTIMER0_CONTROL->set,
+       WDTIMER0_CONTROL_DBGMD_MASK);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Enable VDD Supply Monitor */
+       ret = target_write_u32(target, (uint32_t) &VMON0_CONTROL->set,
+       VMON0_CONTROL_VMONEN_MASK);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Set VDD Supply Monitor as a reset source */
+       ret = target_write_u32(target, (uint32_t) &RSTSRC0_RESETEN->set,
+       RSTSRC0_RESETEN_VMONREN_MASK);
+       if (ERROR_OK != ret)
+               return ret;
+
+       /* Flash Controller Clock Enable */
+       ret = target_write_u32(target, (uint32_t) &CLKCTRL0_APBCLKG0->set,
+       CLKCTRL0_APBCLKG0_FLCTRLCEN_MASK);
+       if (ERROR_OK != ret)
+               return ret;
+
+       return ERROR_OK;
+}
+
+static int sim3x_device_probe(struct flash_bank *bank) {
+       int ret, i, num_pages;
+       struct sim3x_info * sim3x_info;
+
+       sim3x_info = bank->driver_priv;
+       sim3x_info->probed = 0;
+
+       ret = sim3x_set_debug_mode(bank);
+       if (ERROR_OK != ret)
+               return ret;
+
+       ret = sim3x_read_info(bank);
+       if (ERROR_OK != ret)
+               return ret;
+
+#ifdef DEVICE_AUTO_DETECTION
+       switch(sim3x_info->part_family) {
+       case 'c':
+       case 'C':
+               LOG_INFO("SiM3Cx detected");
+               break;
+
+       case 'u':
+       case 'U':
+               LOG_INFO("SiM3Ux detected");
+               break;
+
+       case 'l':
+       case 'L':
+               LOG_INFO("SiM3Lx detected");
+               break;
+
+       default:
+               LOG_ERROR("Unsupported MCU family %c", sim3x_info->part_family);
+               return ERROR_FAIL;
+       }
+
+       LOG_INFO("flash size = %dKB", sim3x_info->flash_size_kb);
+       LOG_INFO("flash page size = %dB", sim3x_info->flash_page_size);
+#else
+       LOG_INFO("SiM3x detected");
+#endif
+
+       num_pages = sim3x_info->flash_size_kb * 1024 / 
sim3x_info->flash_page_size;
+
+       if (bank->sectors) {
+               free(bank->sectors);
+               bank->sectors = NULL;
+       }
+
+       bank->base = FLASH_BASE_ADDRESS;
+       bank->size = num_pages * sim3x_info->flash_page_size;
+       bank->num_sectors = num_pages;
+       bank->sectors = malloc(sizeof(struct flash_sector) * num_pages);
+
+       for (i = 0; i < num_pages; i++) {
+               bank->sectors[i].offset = i * sim3x_info->flash_page_size;
+               bank->sectors[i].size = sim3x_info->flash_page_size;
+               bank->sectors[i].is_erased = -1;
+               bank->sectors[i].is_protected = sim3x_info->flash_locked > 0;
+       }
+
+       sim3x_info->probed = 1;
+
+       return ERROR_OK;
+}
+
+static int sim3x_probe(struct flash_bank *bank) {
+       return sim3x_device_probe(bank);
+}
+
+static int sim3x_auto_probe(struct flash_bank *bank) {
+       if (((struct sim3x_info *) bank->driver_priv)->probed)
+               return ERROR_OK;
+
+       return sim3x_device_probe(bank);
+}
+
+static int sim3x_flash_protect_check(struct flash_bank *bank) {
+       int ret, i;
+       struct sim3x_info * sim3x_info;
+
+       if (bank->target->state != TARGET_HALTED) {
+               LOG_ERROR("Target not halted");
+               return ERROR_TARGET_NOT_HALTED;
+       }
+
+       ret = sim3x_flash_lock_check(bank);
+       if (ERROR_OK != ret)
+               return ret;
+
+       sim3x_info = bank->driver_priv;
+
+       for (i = 0; i < bank->num_sectors; i++)
+               bank->sectors[i].is_protected = sim3x_info->flash_locked > 0;
+
+       return ERROR_OK;
+}
+
+static int sim3x_flash_info(struct flash_bank *bank, char *buf, int buf_size) {
+       int ret;
+       int printed = 0;
+#ifdef DEVICE_AUTO_DETECTION
+       struct sim3x_info * sim3x_info;
+#endif
+
+       ret = sim3x_read_info(bank);
+       if (ERROR_OK != ret)
+               return ret;
+
+#ifdef DEVICE_AUTO_DETECTION
+       sim3x_info = bank->driver_priv;
+
+       /* Part */
+       printed = snprintf(buf, buf_size, "SiM3%c%d", sim3x_info->part_family, 
sim3x_info->part_number);
+       buf += printed;
+       buf_size -= printed;
+
+       if(buf_size <= 0)
+               return ERROR_BUF_TOO_SMALL;
+
+       /* Revision */
+       if(sim3x_info->device_revision <= 'Z' - 'A') {
+               printed = snprintf(buf, buf_size, "-%c", 
sim3x_info->device_revision + 'A');
+               buf += printed;
+               buf_size -= printed;
+
+               if(buf_size <= 0)
+                       return ERROR_BUF_TOO_SMALL;
+       }
+
+       /* Package */
+       printed = snprintf(buf, buf_size, "-G%s", sim3x_info->device_package);
+       buf += printed;
+       buf_size -= printed;
+
+       if(buf_size <= 0)
+               return ERROR_BUF_TOO_SMALL;
+
+#else
+       printed = snprintf(buf, buf_size, "SiM3x");
+       buf += printed;
+       buf_size -= printed;
+
+       if(buf_size <= 0)
+               return ERROR_BUF_TOO_SMALL;
+#endif
+
+       return ERROR_OK;
+}
+
+static const struct command_registration sim3x_exec_command_handlers[] = {
+       COMMAND_REGISTRATION_DONE
+};
+
+static const struct command_registration sim3x_command_handlers[] = {
+       {
+               .name = "sim3x",
+               .mode = COMMAND_ANY,
+               .help = "sim3x flash command group",
+               .usage = "",
+               .chain = sim3x_exec_command_handlers,
+       },
+       COMMAND_REGISTRATION_DONE
+};
+
+struct flash_driver sim3x_flash = {
+       .name = "sim3x", .commands = sim3x_command_handlers,
+       .flash_bank_command = sim3x_flash_bank_command,
+       .erase = sim3x_flash_erase,
+       .protect = sim3x_flash_protect,
+       .write = sim3x_flash_write,
+       .read = default_flash_read,
+       .probe = sim3x_probe,
+       .auto_probe = sim3x_auto_probe,
+       .erase_check = default_flash_blank_check,
+       .protect_check = sim3x_flash_protect_check,
+       .info = sim3x_flash_info
+};
diff --git a/tcl/target/sim3x_stlink.cfg b/tcl/target/sim3x_stlink.cfg
new file mode 100755
index 0000000..de662c7
--- /dev/null
+++ b/tcl/target/sim3x_stlink.cfg
@@ -0,0 +1,27 @@
+#
+# Silicon Laboratories SiM3x Cortex-M3
+#
+
+set CHIPNAME SiM3x
+set CPUTAPID 0x2BA01477
+set CPURAMSIZE 0x8000
+set CPUROMSIZE 0x40000
+
+set _TRANSPORT hla_swd
+set _CHIPNAME $CHIPNAME
+set _CPUTAPID $CPUTAPID
+set _WORKAREASIZE $CPURAMSIZE
+set _CPUROMSIZE $CPUROMSIZE
+
+adapter_nsrst_delay 200
+
+transport select $_TRANSPORT
+hla newtap $_CHIPNAME cpu -expected-id $_CPUTAPID
+
+set _TARGETNAME $_CHIPNAME.cpu
+target create $_TARGETNAME hla_target -chain-position $_TARGETNAME
+
+$_TARGETNAME configure -work-area-phys 0x20000000 -work-area-size 
$_WORKAREASIZE -work-area-backup 0 
+
+set _FLASHNAME $_CHIPNAME.flash
+flash bank $_FLASHNAME sim3x 0 $_CPUROMSIZE 0 0 $_TARGETNAME

-- 

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