flash: add NXP LPC800 support

Not tested, adapted from http://tech.groups.yahoo.com/group/versaloon/message/391

Change-Id: I142fa6f29e66fd334baca14217aca97e1fc6c7d9
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/1509
Tested-by: jenkins

diff --git a/src/flash/nor/lpc2000.c b/src/flash/nor/lpc2000.c
index aa9c98186d54c407d1b510a134edc86ea8b90a7e..3962f305c809ba3cef780cccb7cb6aa81c04c01d 100644 (file)
--- a/src/flash/nor/lpc2000.c
+++ b/src/flash/nor/lpc2000.c
@@ -62,6 +62,9 @@
  * lpc4300 (also available as lpc1800 - alias)
  * - 43x2 | 3 | 5 | 7 (tested with 4337)
  * - 18x2 | 3 | 5 | 7
+ *
+ * lpc800:
+ * - 810 | 1 | 2 (tested with 812)
  */
 
 typedef enum {
@@ -69,12 +72,14 @@ typedef enum {
        lpc2000_v2,
        lpc1700,
        lpc4300,
+       lpc800,
 } lpc2000_variant;
 
 struct lpc2000_flash_bank {
        lpc2000_variant variant;
        uint32_t cclk;
        int cmd51_dst_boundary;
+       int cmd51_can_64b;
        int cmd51_can_256b;
        int cmd51_can_8192b;
        int calc_checksum;
@@ -224,7 +229,20 @@ static int lpc2000_build_sector_list(struct flash_bank *bank)
                }
        } else if (lpc2000_info->variant == lpc1700) {
                switch (bank->size) {
+                       case 4 * 1024:
+                               lpc2000_info->cmd51_max_buffer = 1024;
+                               bank->num_sectors = 1;
+                               break;
+                       case 8 * 1024:
+                               lpc2000_info->cmd51_max_buffer = 1024;
+                               bank->num_sectors = 2;
+                               break;
+                       case 16 * 1024:
+                               lpc2000_info->cmd51_max_buffer = 1024;
+                               bank->num_sectors = 4;
+                               break;
                        case 32 * 1024:
+                               lpc2000_info->cmd51_max_buffer = 1024;
                                bank->num_sectors = 8;
                                break;
                        case 64 * 1024:
@@ -280,6 +298,35 @@ static int lpc2000_build_sector_list(struct flash_bank *bank)
                        bank->sectors[i].is_erased = -1;
                        bank->sectors[i].is_protected = 1;
                }
+
+       }  else if (lpc2000_info->variant == lpc800) {
+                       lpc2000_info->cmd51_max_buffer = 1024;
+               switch (bank->size) {
+                       case 4 * 1024:
+                               bank->num_sectors = 4;
+                               break;
+                       case 8 * 1024:
+                               bank->num_sectors = 8;
+                               break;
+                       case 16 * 1024:
+                               bank->num_sectors = 16;
+                               break;
+                       default:
+                               LOG_ERROR("BUG: unknown bank->size encountered");
+                               exit(-1);
+               }
+
+               bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
+
+               for (int i = 0; i < bank->num_sectors; i++) {
+                       bank->sectors[i].offset = offset;
+                       /* sectors 0-15 are 1kB-sized for LPC8xx devices */
+                       bank->sectors[i].size = 1 * 1024;
+                       offset += bank->sectors[i].size;
+                       bank->sectors[i].is_erased = -1;
+                       bank->sectors[i].is_protected = 1;
+               }
+
        } else {
                LOG_ERROR("BUG: unknown lpc2000_info->variant encountered");
                exit(-1);
@@ -293,7 +340,7 @@ static int lpc2000_build_sector_list(struct flash_bank *bank)
  * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
  * 0x8 to 0x1f: command parameter table (1+5 words)
  * 0x20 to 0x33: command result table (1+4 words)
- * 0x34 to 0xb3|0x104: stack (only 128b needed for lpc17xx/2000, 208 for lpc43xx)
+ * 0x34 to 0xb3|0x104: stack (only 128b needed for lpc17xx/2000, 208 for lpc43xx and 148b for lpc8xx)
  */
 
 static int lpc2000_iap_working_area_init(struct flash_bank *bank, struct working_area **iap_working_area)
@@ -310,6 +357,7 @@ static int lpc2000_iap_working_area_init(struct flash_bank *bank, struct working
 
        /* write IAP code to working area */
        switch (lpc2000_info->variant) {
+               case lpc800:
                case lpc1700:
                case lpc4300:
                        target_buffer_set_u32(target, jump_gate, ARMV4_5_T_BX(12));
@@ -346,6 +394,7 @@ static int lpc2000_iap_call(struct flash_bank *bank, struct working_area *iap_wo
        uint32_t iap_entry_point = 0;   /* to make compiler happier */
 
        switch (lpc2000_info->variant) {
+               case lpc800:
                case lpc1700:
                        armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
                        armv7m_info.core_mode = ARM_MODE_THREAD;
@@ -396,6 +445,7 @@ static int lpc2000_iap_call(struct flash_bank *bank, struct working_area *iap_wo
        buf_set_u32(reg_params[2].value, 0, 32, iap_entry_point);
 
        switch (lpc2000_info->variant) {
+               case lpc800:
                case lpc1700:
                case lpc4300:
                        /* IAP stack */
@@ -540,6 +590,14 @@ FLASH_BANK_COMMAND_HANDLER(lpc2000_flash_bank_command)
                lpc2000_info->cmd51_can_8192b = 0;
                lpc2000_info->checksum_vector = 7;
                lpc2000_info->iap_max_stack = 208;
+       } else if (strcmp(CMD_ARGV[6], "lpc800") == 0) {
+               lpc2000_info->variant = lpc800;
+               lpc2000_info->cmd51_dst_boundary = 64;
+               lpc2000_info->cmd51_can_64b = 1;
+               lpc2000_info->cmd51_can_256b = 0;
+               lpc2000_info->cmd51_can_8192b = 0;
+               lpc2000_info->checksum_vector = 7;
+               lpc2000_info->iap_max_stack = 148;
        } else {
                LOG_ERROR("unknown LPC2000 variant: %s", CMD_ARGV[6]);
                free(lpc2000_info);
@@ -730,8 +788,10 @@ static int lpc2000_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offs
                        thisrun_bytes = 1024;
                else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
                        thisrun_bytes = 512;
-               else
+               else if ((bytes_remaining >= 256) || (!lpc2000_info->cmd51_can_64b))
                        thisrun_bytes = 256;
+               else
+                       thisrun_bytes = 64;
 
                /* Prepare sectors */
                param_table[0] = first_sector;