***************************************************************************/
/***************************************************************************
-* STELLARIS is tested on LM3S811, LM3S6965
+* STELLARIS flash is tested on LM3S811, LM3S6965, LM3s3748, more.
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include "stellaris.h"
-#include "armv7m.h"
-#include <helper/binarybuffer.h>
+#include "jtag/interface.h"
+#include "imp.h"
#include <target/algorithm.h>
-
+#include <target/armv7m.h>
#define DID0_VER(did0) ((did0 >> 28)&0x07)
-static int stellaris_read_part_info(struct flash_bank *bank);
-static uint32_t stellaris_get_flash_status(struct flash_bank *bank);
-static void stellaris_set_flash_mode(struct flash_bank *bank,int mode);
-//static uint32_t stellaris_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout);
-
+/* STELLARIS control registers */
+#define SCB_BASE 0x400FE000
+#define DID0 0x000
+#define DID1 0x004
+#define DC0 0x008
+#define DC1 0x010
+#define DC2 0x014
+#define DC3 0x018
+#define DC4 0x01C
+
+#define RIS 0x050
+#define RCC 0x060
+#define PLLCFG 0x064
+#define RCC2 0x070
+#define NVMSTAT 0x1a0
+
+/* "legacy" flash memory protection registers (64KB max) */
+#define FMPRE 0x130
+#define FMPPE 0x134
+
+/* new flash memory protection registers (for more than 64KB) */
+#define FMPRE0 0x200 /* PRE1 = PRE0 + 4, etc */
+#define FMPPE0 0x400 /* PPE1 = PPE0 + 4, etc */
+
+#define USECRL 0x140
+
+#define FLASH_CONTROL_BASE 0x400FD000
+#define FLASH_FMA (FLASH_CONTROL_BASE | 0x000)
+#define FLASH_FMD (FLASH_CONTROL_BASE | 0x004)
+#define FLASH_FMC (FLASH_CONTROL_BASE | 0x008)
+#define FLASH_CRIS (FLASH_CONTROL_BASE | 0x00C)
+#define FLASH_CIM (FLASH_CONTROL_BASE | 0x010)
+#define FLASH_MISC (FLASH_CONTROL_BASE | 0x014)
+
+#define AMISC 1
+#define PMISC 2
+
+#define AMASK 1
+#define PMASK 2
+
+/* Flash Controller Command bits */
+#define FMC_WRKEY (0xA442 << 16)
+#define FMC_COMT (1 << 3)
+#define FMC_MERASE (1 << 2)
+#define FMC_ERASE (1 << 1)
+#define FMC_WRITE (1 << 0)
+
+/* STELLARIS constants */
+
+/* values to write in FMA to commit write-"once" values */
+#define FLASH_FMA_PRE(x) (2 * (x)) /* for FMPPREx */
+#define FLASH_FMA_PPE(x) (2 * (x) + 1) /* for FMPPPEx */
+
+static void stellaris_read_clock_info(struct flash_bank *bank);
static int stellaris_mass_erase(struct flash_bank *bank);
+struct stellaris_flash_bank {
+ /* chip id register */
+ uint32_t did0;
+ uint32_t did1;
+ uint32_t dc0;
+ uint32_t dc1;
+
+ const char *target_name;
+ uint8_t target_class;
+
+ uint32_t sramsiz;
+ uint32_t flshsz;
+ /* flash geometry */
+ uint32_t num_pages;
+ uint32_t pagesize;
+ uint32_t pages_in_lockregion;
+
+ /* nv memory bits */
+ uint16_t num_lockbits;
+
+ /* main clock status */
+ uint32_t rcc;
+ uint32_t rcc2;
+ uint8_t mck_valid;
+ uint8_t xtal_mask;
+ uint32_t iosc_freq;
+ uint32_t mck_freq;
+ const char *iosc_desc;
+ const char *mck_desc;
+};
+
+/* Autogenerated by contrib/gen-stellaris-part-header.pl */
+/* From Stellaris Firmware Development Package revision 9453 */
static struct {
- uint32_t partno;
- char *partname;
-} StellarisParts[] =
-{
- {0x01,"LM3S101"},
- {0x02,"LM3S102"},
- {0x03,"LM3S1625"},
- {0x04,"LM3S1626"},
- {0x05,"LM3S1627"},
- {0x06,"LM3S1607"},
- {0x10,"LM3S1776"},
- {0x19,"LM3S300"},
- {0x11,"LM3S301"},
- {0x12,"LM3S310"},
- {0x1A,"LM3S308"},
- {0x13,"LM3S315"},
- {0x14,"LM3S316"},
- {0x17,"LM3S317"},
- {0x18,"LM3S318"},
- {0x15,"LM3S328"},
- {0x2A,"LM3S600"},
- {0x21,"LM3S601"},
- {0x2B,"LM3S608"},
- {0x22,"LM3S610"},
- {0x23,"LM3S611"},
- {0x24,"LM3S612"},
- {0x25,"LM3S613"},
- {0x26,"LM3S615"},
- {0x28,"LM3S617"},
- {0x29,"LM3S618"},
- {0x27,"LM3S628"},
- {0x38,"LM3S800"},
- {0x31,"LM3S801"},
- {0x39,"LM3S808"},
- {0x32,"LM3S811"},
- {0x33,"LM3S812"},
- /*{0x33,"LM3S2616"},*/
- {0x34,"LM3S815"},
- {0x36,"LM3S817"},
- {0x37,"LM3S818"},
- {0x35,"LM3S828"},
- {0x39,"LM3S2276"},
- {0x3A,"LM3S2776"},
- {0x43,"LM3S3651"},
- {0x44,"LM3S3739"},
- {0x45,"LM3S3749"},
- {0x46,"LM3S3759"},
- {0x48,"LM3S3768"},
- {0x49,"LM3S3748"},
- {0x50,"LM3S2678"},
- {0x51,"LM3S2110"},
- {0x52,"LM3S2739"},
- {0x53,"LM3S2651"},
- {0x54,"LM3S2939"},
- {0x55,"LM3S2965"},
- {0x56,"LM3S2432"},
- {0x57,"LM3S2620"},
- {0x58,"LM3S2950"},
- {0x59,"LM3S2412"},
- {0x5A,"LM3S2533"},
- {0x61,"LM3S8630"},
- {0x62,"LM3S8970"},
- {0x63,"LM3S8730"},
- {0x64,"LM3S8530"},
- {0x65,"LM3S8930"},
- {0x71,"LM3S6610"},
- {0x72,"LM3S6950"},
- {0x73,"LM3S6965"},
- {0x74,"LM3S6110"},
- {0x75,"LM3S6432"},
- {0x76,"LM3S6537"},
- {0x77,"LM3S6753"},
- {0x78,"LM3S6952"},
- {0x80,"LM3S2671"},
- {0x81,"LM3S5632"},
- {0x82,"LM3S6422"},
- {0x83,"LM3S6633"},
- {0x84,"LM3S2139"},
- {0x85,"LM3S2637"},
- {0x86,"LM3S8738"},
- {0x88,"LM3S8938"},
- {0x89,"LM3S6938"},
- {0x8A,"LM3S5652"},
- {0x8B,"LM3S6637"},
- {0x8C,"LM3S8933"},
- {0x8D,"LM3S8733"},
- {0x8E,"LM3S8538"},
- {0x8F,"LM3S2948"},
- {0x91,"LM3S5662"},
- {0x96,"LM3S5732"},
- {0x97,"LM3S5737"},
- {0x99,"LM3S5747"},
- {0x9A,"LM3S5752"},
- {0x9B,"LM3S5757"},
- {0x9C,"LM3S5762"},
- {0x9D,"LM3S5767"},
- {0xA0,"LM3S5739"},
- {0xA1,"LM3S6100"},
- {0xA2,"LM3S2410"},
- {0xA3,"LM3S6730"},
- {0xA4,"LM3S2730"},
- {0xA5,"LM3S6420"},
- {0xA6,"LM3S8962"},
- {0xA7,"LM3S5749"},
- {0xA8,"LM3S5769"},
- {0xA9,"LM3S5768"},
- {0xB3,"LM3S1635"},
- {0xB4,"LM3S1850"},
- {0xB5,"LM3S1960"},
- {0xB7,"LM3S1937"},
- {0xB8,"LM3S1968"},
- {0xB9,"LM3S1751"},
- {0xBA,"LM3S1439"},
- {0xBB,"LM3S1512"},
- {0xBC,"LM3S1435"},
- {0xBD,"LM3S1637"},
- {0xBE,"LM3S1958"},
- {0xBF,"LM3S1110"},
- {0xC0,"LM3S1620"},
- {0xC1,"LM3S1150"},
- {0xC2,"LM3S1165"},
- {0xC3,"LM3S1133"},
- {0xC4,"LM3S1162"},
- {0xC5,"LM3S1138"},
- {0xC6,"LM3S1332"},
- {0xC7,"LM3S1538"},
- {0xD0,"LM3S6815"},
- {0xD1,"LM3S6816"},
- {0xD2,"LM3S6915"},
- {0xD3,"LM3S6916"},
- {0xD4,"LM3S2016"},
- {0xD5,"LM3S1615"},
- {0xD6,"LM3S1616"},
- {0xD7,"LM3S8971"},
- {0xD8,"LM3S1108"},
- {0xD9,"LM3S1101"},
- {0xDA,"LM3S1608"},
- {0xDB,"LM3S1601"},
- {0xDC,"LM3S1918"},
- {0xDD,"LM3S1911"},
- {0xDE,"LM3S2108"},
- {0xDF,"LM3S2101"},
- {0xE0,"LM3S2608"},
- {0xE1,"LM3S2601"},
- {0xE2,"LM3S2918"},
- {0xE3,"LM3S2911"},
- {0xE4,"LM3S6118"},
- {0xE5,"LM3S6111"},
- {0xE6,"LM3S6618"},
- {0xE7,"LM3S6611"},
- {0xE8,"LM3S6918"},
- {0xE9,"LM3S6911"},
- {0,"Unknown part"}
+ uint8_t class;
+ uint8_t partno;
+ const char *partname;
+} StellarisParts[] = {
+ {0x00, 0x01, "LM3S101"},
+ {0x00, 0x02, "LM3S102"},
+ {0x01, 0xBF, "LM3S1110"},
+ {0x01, 0xC3, "LM3S1133"},
+ {0x01, 0xC5, "LM3S1138"},
+ {0x01, 0xC1, "LM3S1150"},
+ {0x01, 0xC4, "LM3S1162"},
+ {0x01, 0xC2, "LM3S1165"},
+ {0x01, 0xEC, "LM3S1166"},
+ {0x01, 0xC6, "LM3S1332"},
+ {0x01, 0xBC, "LM3S1435"},
+ {0x01, 0xBA, "LM3S1439"},
+ {0x01, 0xBB, "LM3S1512"},
+ {0x01, 0xC7, "LM3S1538"},
+ {0x01, 0xDB, "LM3S1601"},
+ {0x03, 0x06, "LM3S1607"},
+ {0x01, 0xDA, "LM3S1608"},
+ {0x01, 0xC0, "LM3S1620"},
+ {0x04, 0xCD, "LM3S1621"},
+ {0x03, 0x03, "LM3S1625"},
+ {0x03, 0x04, "LM3S1626"},
+ {0x03, 0x05, "LM3S1627"},
+ {0x01, 0xB3, "LM3S1635"},
+ {0x01, 0xEB, "LM3S1636"},
+ {0x01, 0xBD, "LM3S1637"},
+ {0x04, 0xB1, "LM3S1651"},
+ {0x01, 0xB9, "LM3S1751"},
+ {0x03, 0x10, "LM3S1776"},
+ {0x04, 0x16, "LM3S1811"},
+ {0x04, 0x3D, "LM3S1816"},
+ {0x01, 0xB4, "LM3S1850"},
+ {0x01, 0xDD, "LM3S1911"},
+ {0x01, 0xDC, "LM3S1918"},
+ {0x01, 0xB7, "LM3S1937"},
+ {0x01, 0xBE, "LM3S1958"},
+ {0x01, 0xB5, "LM3S1960"},
+ {0x01, 0xB8, "LM3S1968"},
+ {0x01, 0xEA, "LM3S1969"},
+ {0x04, 0xCE, "LM3S1B21"},
+ {0x06, 0xCA, "LM3S1C21"},
+ {0x06, 0xCB, "LM3S1C26"},
+ {0x06, 0x98, "LM3S1C58"},
+ {0x06, 0xB0, "LM3S1D21"},
+ {0x06, 0xCC, "LM3S1D26"},
+ {0x06, 0x1D, "LM3S1F11"},
+ {0x06, 0x1B, "LM3S1F16"},
+ {0x06, 0xAF, "LM3S1G21"},
+ {0x06, 0x95, "LM3S1G58"},
+ {0x06, 0x1E, "LM3S1H11"},
+ {0x06, 0x1C, "LM3S1H16"},
+ {0x04, 0x0F, "LM3S1J11"},
+ {0x04, 0x3C, "LM3S1J16"},
+ {0x04, 0x0E, "LM3S1N11"},
+ {0x04, 0x3B, "LM3S1N16"},
+ {0x04, 0xB2, "LM3S1P51"},
+ {0x04, 0x9E, "LM3S1R21"},
+ {0x04, 0xC9, "LM3S1R26"},
+ {0x04, 0x30, "LM3S1W16"},
+ {0x04, 0x2F, "LM3S1Z16"},
+ {0x01, 0x51, "LM3S2110"},
+ {0x01, 0x84, "LM3S2139"},
+ {0x03, 0x39, "LM3S2276"},
+ {0x01, 0xA2, "LM3S2410"},
+ {0x01, 0x59, "LM3S2412"},
+ {0x01, 0x56, "LM3S2432"},
+ {0x01, 0x5A, "LM3S2533"},
+ {0x01, 0xE1, "LM3S2601"},
+ {0x01, 0xE0, "LM3S2608"},
+ {0x03, 0x33, "LM3S2616"},
+ {0x01, 0x57, "LM3S2620"},
+ {0x01, 0x85, "LM3S2637"},
+ {0x01, 0x53, "LM3S2651"},
+ {0x03, 0x80, "LM3S2671"},
+ {0x03, 0x50, "LM3S2678"},
+ {0x01, 0xA4, "LM3S2730"},
+ {0x01, 0x52, "LM3S2739"},
+ {0x03, 0x3A, "LM3S2776"},
+ {0x04, 0x6D, "LM3S2793"},
+ {0x01, 0xE3, "LM3S2911"},
+ {0x01, 0xE2, "LM3S2918"},
+ {0x01, 0xED, "LM3S2919"},
+ {0x01, 0x54, "LM3S2939"},
+ {0x01, 0x8F, "LM3S2948"},
+ {0x01, 0x58, "LM3S2950"},
+ {0x01, 0x55, "LM3S2965"},
+ {0x04, 0x6C, "LM3S2B93"},
+ {0x06, 0x94, "LM3S2D93"},
+ {0x06, 0x93, "LM3S2U93"},
+ {0x00, 0x19, "LM3S300"},
+ {0x00, 0x11, "LM3S301"},
+ {0x00, 0x1A, "LM3S308"},
+ {0x00, 0x12, "LM3S310"},
+ {0x00, 0x13, "LM3S315"},
+ {0x00, 0x14, "LM3S316"},
+ {0x00, 0x17, "LM3S317"},
+ {0x00, 0x15, "LM3S328"},
+ {0x03, 0x08, "LM3S3634"},
+ {0x03, 0x43, "LM3S3651"},
+ {0x04, 0xC8, "LM3S3654"},
+ {0x03, 0x44, "LM3S3739"},
+ {0x03, 0x49, "LM3S3748"},
+ {0x03, 0x45, "LM3S3749"},
+ {0x04, 0x42, "LM3S3826"},
+ {0x04, 0x41, "LM3S3J26"},
+ {0x04, 0x40, "LM3S3N26"},
+ {0x04, 0x3F, "LM3S3W26"},
+ {0x04, 0x3E, "LM3S3Z26"},
+ {0x03, 0x81, "LM3S5632"},
+ {0x04, 0x0C, "LM3S5651"},
+ {0x03, 0x8A, "LM3S5652"},
+ {0x04, 0x4D, "LM3S5656"},
+ {0x03, 0x91, "LM3S5662"},
+ {0x03, 0x96, "LM3S5732"},
+ {0x03, 0x97, "LM3S5737"},
+ {0x03, 0xA0, "LM3S5739"},
+ {0x03, 0x99, "LM3S5747"},
+ {0x03, 0xA7, "LM3S5749"},
+ {0x03, 0x9A, "LM3S5752"},
+ {0x03, 0x9C, "LM3S5762"},
+ {0x04, 0x69, "LM3S5791"},
+ {0x04, 0x0B, "LM3S5951"},
+ {0x04, 0x4E, "LM3S5956"},
+ {0x04, 0x68, "LM3S5B91"},
+ {0x06, 0x2E, "LM3S5C31"},
+ {0x06, 0x2C, "LM3S5C36"},
+ {0x06, 0x5E, "LM3S5C51"},
+ {0x06, 0x5B, "LM3S5C56"},
+ {0x06, 0x5F, "LM3S5D51"},
+ {0x06, 0x5C, "LM3S5D56"},
+ {0x06, 0x87, "LM3S5D91"},
+ {0x06, 0x2D, "LM3S5G31"},
+ {0x06, 0x1F, "LM3S5G36"},
+ {0x06, 0x5D, "LM3S5G51"},
+ {0x06, 0x4F, "LM3S5G56"},
+ {0x04, 0x09, "LM3S5K31"},
+ {0x04, 0x4A, "LM3S5K36"},
+ {0x04, 0x0A, "LM3S5P31"},
+ {0x04, 0x48, "LM3S5P36"},
+ {0x04, 0xB6, "LM3S5P3B"},
+ {0x04, 0x0D, "LM3S5P51"},
+ {0x04, 0x4C, "LM3S5P56"},
+ {0x04, 0x07, "LM3S5R31"},
+ {0x04, 0x4B, "LM3S5R36"},
+ {0x04, 0x47, "LM3S5T36"},
+ {0x06, 0x7F, "LM3S5U91"},
+ {0x04, 0x46, "LM3S5Y36"},
+ {0x00, 0x2A, "LM3S600"},
+ {0x00, 0x21, "LM3S601"},
+ {0x00, 0x2B, "LM3S608"},
+ {0x00, 0x22, "LM3S610"},
+ {0x01, 0xA1, "LM3S6100"},
+ {0x00, 0x23, "LM3S611"},
+ {0x01, 0x74, "LM3S6110"},
+ {0x00, 0x24, "LM3S612"},
+ {0x00, 0x25, "LM3S613"},
+ {0x00, 0x26, "LM3S615"},
+ {0x00, 0x28, "LM3S617"},
+ {0x00, 0x29, "LM3S618"},
+ {0x00, 0x27, "LM3S628"},
+ {0x01, 0xA5, "LM3S6420"},
+ {0x01, 0x82, "LM3S6422"},
+ {0x01, 0x75, "LM3S6432"},
+ {0x01, 0x76, "LM3S6537"},
+ {0x01, 0x71, "LM3S6610"},
+ {0x01, 0xE7, "LM3S6611"},
+ {0x01, 0xE6, "LM3S6618"},
+ {0x01, 0x83, "LM3S6633"},
+ {0x01, 0x8B, "LM3S6637"},
+ {0x01, 0xA3, "LM3S6730"},
+ {0x01, 0x77, "LM3S6753"},
+ {0x01, 0xE9, "LM3S6911"},
+ {0x01, 0xE8, "LM3S6918"},
+ {0x01, 0x89, "LM3S6938"},
+ {0x01, 0x72, "LM3S6950"},
+ {0x01, 0x78, "LM3S6952"},
+ {0x01, 0x73, "LM3S6965"},
+ {0x06, 0xAA, "LM3S6C11"},
+ {0x06, 0xAC, "LM3S6C65"},
+ {0x06, 0x9F, "LM3S6G11"},
+ {0x06, 0xAB, "LM3S6G65"},
+ {0x00, 0x38, "LM3S800"},
+ {0x00, 0x31, "LM3S801"},
+ {0x00, 0x39, "LM3S808"},
+ {0x00, 0x32, "LM3S811"},
+ {0x00, 0x33, "LM3S812"},
+ {0x00, 0x34, "LM3S815"},
+ {0x00, 0x36, "LM3S817"},
+ {0x00, 0x37, "LM3S818"},
+ {0x00, 0x35, "LM3S828"},
+ {0x01, 0x64, "LM3S8530"},
+ {0x01, 0x8E, "LM3S8538"},
+ {0x01, 0x61, "LM3S8630"},
+ {0x01, 0x63, "LM3S8730"},
+ {0x01, 0x8D, "LM3S8733"},
+ {0x01, 0x86, "LM3S8738"},
+ {0x01, 0x65, "LM3S8930"},
+ {0x01, 0x8C, "LM3S8933"},
+ {0x01, 0x88, "LM3S8938"},
+ {0x01, 0xA6, "LM3S8962"},
+ {0x01, 0x62, "LM3S8970"},
+ {0x01, 0xD7, "LM3S8971"},
+ {0x06, 0xAE, "LM3S8C62"},
+ {0x06, 0xAD, "LM3S8G62"},
+ {0x04, 0xCF, "LM3S9781"},
+ {0x04, 0x67, "LM3S9790"},
+ {0x04, 0x6B, "LM3S9792"},
+ {0x04, 0x2D, "LM3S9971"},
+ {0x04, 0x20, "LM3S9997"},
+ {0x04, 0xD0, "LM3S9B81"},
+ {0x04, 0x66, "LM3S9B90"},
+ {0x04, 0x6A, "LM3S9B92"},
+ {0x04, 0x6E, "LM3S9B95"},
+ {0x04, 0x6F, "LM3S9B96"},
+ {0x04, 0x1D, "LM3S9BN2"},
+ {0x04, 0x1E, "LM3S9BN5"},
+ {0x04, 0x1F, "LM3S9BN6"},
+ {0x06, 0x70, "LM3S9C97"},
+ {0x06, 0xA9, "LM3S9D81"},
+ {0x06, 0x7E, "LM3S9D90"},
+ {0x06, 0x92, "LM3S9D92"},
+ {0x06, 0x9D, "LM3S9D96"},
+ {0x06, 0x7B, "LM3S9DN5"},
+ {0x06, 0x7C, "LM3S9DN6"},
+ {0x06, 0x60, "LM3S9G97"},
+ {0x06, 0x79, "LM3S9GN5"},
+ {0x04, 0x1B, "LM3S9L71"},
+ {0x04, 0x18, "LM3S9L97"},
+ {0x06, 0xA8, "LM3S9U81"},
+ {0x06, 0x7D, "LM3S9U90"},
+ {0x06, 0x90, "LM3S9U92"},
+ {0x06, 0x9B, "LM3S9U96"},
+ {0x05, 0x18, "LM4F110B2QR"},
+ {0x05, 0x19, "LM4F110C4QR"},
+ {0x05, 0x10, "LM4F110E5QR"},
+ {0x05, 0x11, "LM4F110H5QR"},
+ {0x05, 0x22, "LM4F111B2QR"},
+ {0x05, 0x23, "LM4F111C4QR"},
+ {0x05, 0x20, "LM4F111E5QR"},
+ {0x05, 0x21, "LM4F111H5QR"},
+ {0x05, 0x36, "LM4F112C4QC"},
+ {0x05, 0x30, "LM4F112E5QC"},
+ {0x05, 0x31, "LM4F112H5QC"},
+ {0x05, 0x35, "LM4F112H5QD"},
+ {0x05, 0x01, "LM4F120B2QR"},
+ {0x05, 0x02, "LM4F120C4QR"},
+ {0x05, 0x03, "LM4F120E5QR"},
+ {0x05, 0x04, "LM4F120H5QR"},
+ {0x05, 0x08, "LM4F121B2QR"},
+ {0x05, 0x09, "LM4F121C4QR"},
+ {0x05, 0x0A, "LM4F121E5QR"},
+ {0x05, 0x0B, "LM4F121H5QR"},
+ {0x05, 0xD0, "LM4F122C4QC"},
+ {0x05, 0xD1, "LM4F122E5QC"},
+ {0x05, 0xD2, "LM4F122H5QC"},
+ {0x05, 0xD6, "LM4F122H5QD"},
+ {0x05, 0x48, "LM4F130C4QR"},
+ {0x05, 0x40, "LM4F130E5QR"},
+ {0x05, 0x41, "LM4F130H5QR"},
+ {0x05, 0x52, "LM4F131C4QR"},
+ {0x05, 0x50, "LM4F131E5QR"},
+ {0x05, 0x51, "LM4F131H5QR"},
+ {0x05, 0x66, "LM4F132C4QC"},
+ {0x05, 0x60, "LM4F132E5QC"},
+ {0x05, 0x61, "LM4F132H5QC"},
+ {0x05, 0x65, "LM4F132H5QD"},
+ {0x05, 0x70, "LM4F210E5QR"},
+ {0x05, 0x73, "LM4F210H5QR"},
+ {0x05, 0x80, "LM4F211E5QR"},
+ {0x05, 0x83, "LM4F211H5QR"},
+ {0x05, 0xE9, "LM4F212H5BB"},
+ {0x05, 0xC4, "LM4F212H5QC"},
+ {0x05, 0xC6, "LM4F212H5QD"},
+ {0x05, 0xA0, "LM4F230E5QR"},
+ {0x05, 0xA1, "LM4F230H5QR"},
+ {0x05, 0xB0, "LM4F231E5QR"},
+ {0x05, 0xB1, "LM4F231H5QR"},
+ {0x05, 0xC0, "LM4F232E5QC"},
+ {0x05, 0xE3, "LM4F232H5BB"},
+ {0x05, 0xC1, "LM4F232H5QC"},
+ {0x05, 0xC5, "LM4F232H5QD"},
+ {0x05, 0xE5, "LM4FS1AH5BB"},
+ {0x05, 0xEA, "LM4FS1GH5BB"},
+ {0x05, 0xE4, "LM4FS99H5BB"},
+ {0x05, 0xE1, "LM4FSXLH5BB"},
+ {0xFF, 0x00, "Unknown Part"}
};
-static char * StellarisClassname[5] =
-{
+static char *StellarisClassname[7] = {
"Sandstorm",
"Fury",
"Unknown",
"DustDevil",
- "Tempest"
+ "Tempest",
+ "Blizzard",
+ "Firestorm"
};
/***************************************************************************
struct stellaris_flash_bank *stellaris_info;
if (CMD_ARGC < 6)
- {
- LOG_WARNING("incomplete flash_bank stellaris configuration");
- return ERROR_FLASH_BANK_INVALID;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
stellaris_info = calloc(sizeof(struct stellaris_flash_bank), 1);
bank->base = 0x0;
return ERROR_OK;
}
-static int stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
+static int get_stellaris_info(struct flash_bank *bank, char *buf, int buf_size)
{
- int printed, device_class;
+ int printed;
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- stellaris_read_part_info(bank);
-
if (stellaris_info->did1 == 0)
- {
- printed = snprintf(buf, buf_size, "Cannot identify target as a Stellaris\n");
- buf += printed;
- buf_size -= printed;
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
+
+ /* Read main and master clock freqency register */
+ stellaris_read_clock_info(bank);
- if (DID0_VER(stellaris_info->did0) > 0)
- {
- device_class = (stellaris_info->did0 >> 16) & 0xFF;
- }
- else
- {
- device_class = 0;
- }
printed = snprintf(buf,
buf_size,
"\nTI/LMI Stellaris information: Chip is "
"class %i (%s) %s rev %c%i\n",
- device_class,
- StellarisClassname[device_class],
+ stellaris_info->target_class,
+ StellarisClassname[stellaris_info->target_class],
stellaris_info->target_name,
(int)('A' + ((stellaris_info->did0 >> 8) & 0xFF)),
(int)((stellaris_info->did0) & 0xFF));
buf += printed;
buf_size -= printed;
- if (stellaris_info->num_lockbits > 0)
- {
- printed = snprintf(buf,
- buf_size,
- "pagesize: %" PRIi32 ", lockbits: %i 0x%4.4" PRIx32 ", pages in lock region: %i \n",
- stellaris_info->pagesize,
- stellaris_info->num_lockbits,
- stellaris_info->lockbits,
- (int)(stellaris_info->num_pages/stellaris_info->num_lockbits));
- buf += printed;
- buf_size -= printed;
+ if (stellaris_info->num_lockbits > 0) {
+ snprintf(buf,
+ buf_size,
+ "pagesize: %" PRIi32 ", pages: %d, "
+ "lockbits: %i, pages per lockbit: %i\n",
+ stellaris_info->pagesize,
+ (unsigned) stellaris_info->num_pages,
+ stellaris_info->num_lockbits,
+ (unsigned) stellaris_info->pages_in_lockregion);
}
return ERROR_OK;
}
* chip identification and status *
***************************************************************************/
-static uint32_t stellaris_get_flash_status(struct flash_bank *bank)
+/* Set the flash timimg register to match current clocking */
+static void stellaris_set_flash_timing(struct flash_bank *bank)
{
+ struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- uint32_t fmc;
+ uint32_t usecrl = (stellaris_info->mck_freq/1000000ul-1);
- target_read_u32(target, FLASH_CONTROL_BASE | FLASH_FMC, &fmc);
+ /* only valid for Sandstorm and Fury class devices */
+ if (stellaris_info->target_class > 1)
+ return;
- return fmc;
+ LOG_DEBUG("usecrl = %i", (int)(usecrl));
+ target_write_u32(target, SCB_BASE | USECRL, usecrl);
}
-/** Read clock configuration and set stellaris_info->usec_clocks*/
-
static const unsigned rcc_xtal[32] = {
[0x00] = 1000000, /* no pll */
[0x01] = 1843200, /* no pll */
[0x16] = 16384000,
};
+/** Read clock configuration and set stellaris_info->usec_clocks. */
static void stellaris_read_clock_info(struct flash_bank *bank)
{
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
stellaris_info->mck_desc = "";
- switch (oscsrc)
- {
+ switch (oscsrc) {
case 0: /* MOSC */
mainfreq = rcc_xtal[xtal];
break;
stellaris_info->mck_freq = mainfreq/(1 + sysdiv);
else
stellaris_info->mck_freq = mainfreq;
-
- /* Forget old flash timing */
- stellaris_set_flash_mode(bank, 0);
}
-/* Setup the timimg registers */
-static void stellaris_set_flash_mode(struct flash_bank *bank,int mode)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- struct target *target = bank->target;
-
- uint32_t usecrl = (stellaris_info->mck_freq/1000000ul-1);
- LOG_DEBUG("usecrl = %i",(int)(usecrl));
- target_write_u32(target, SCB_BASE | USECRL, usecrl);
-}
-
-#if 0
-static uint32_t stellaris_wait_status_busy(struct flash_bank *bank, uint32_t waitbits, int timeout)
-{
- uint32_t status;
-
- /* Stellaris waits for cmdbit to clear */
- while (((status = stellaris_get_flash_status(bank)) & waitbits) && (timeout-- > 0))
- {
- LOG_DEBUG("status: 0x%x", status);
- alive_sleep(1);
- }
-
- /* Flash errors are reflected in the FLASH_CRIS register */
-
- return status;
-}
-
-/* Send one command to the flash controller */
-static int stellaris_flash_command(struct flash_bank *bank,uint8_t cmd,uint16_t pagen)
-{
- uint32_t fmc;
- struct target *target = bank->target;
-
- fmc = FMC_WRKEY | cmd;
- target_write_u32(target, FLASH_CONTROL_BASE | FLASH_FMC, fmc);
- LOG_DEBUG("Flash command: 0x%x", fmc);
-
- if (stellaris_wait_status_busy(bank, cmd, 100))
- {
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- return ERROR_OK;
-}
-#endif
-
/* Read device id register, main clock frequency register and fill in driver info structure */
static int stellaris_read_part_info(struct flash_bank *bank)
{
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- uint32_t did0, did1, ver, fam, status;
+ uint32_t did0, did1, ver, fam;
int i;
/* Read and parse chip identification register */
did0, did1, stellaris_info->dc0, stellaris_info->dc1);
ver = did0 >> 28;
- if ((ver != 0) && (ver != 1))
- {
+ if ((ver != 0) && (ver != 1)) {
LOG_WARNING("Unknown did0 version, cannot identify target");
return ERROR_FLASH_OPERATION_FAILED;
}
- if (did1 == 0)
- {
+ if (did1 == 0) {
LOG_WARNING("Cannot identify target as a Stellaris");
return ERROR_FLASH_OPERATION_FAILED;
}
ver = did1 >> 28;
fam = (did1 >> 24) & 0xF;
- if (((ver != 0) && (ver != 1)) || (fam != 0))
- {
- LOG_WARNING("Unknown did1 version/family, cannot positively identify target as a Stellaris");
+ if (((ver != 0) && (ver != 1)) || (fam != 0)) {
+ LOG_WARNING("Unknown did1 version/family.");
+ return ERROR_FLASH_OPERATION_FAILED;
}
/* For Sandstorm, Fury, DustDevil: current data sheets say IOSC
* always approximate.
*
* For Tempest: IOSC is calibrated, 16 MHz
+ * For Blizzard: IOSC is calibrated, 16 MHz
+ * For Firestorm: IOSC is calibrated, 16 MHz
*/
stellaris_info->iosc_freq = 12000000;
stellaris_info->iosc_desc = " (±30%)";
stellaris_info->xtal_mask = 0x0f;
- switch ((did0 >> 28) & 0x7) {
- case 0: /* Sandstorm */
- /*
- * Current (2009-August) parts seem to be rev C2 and use 12 MHz.
- * Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
- * (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
- */
- if (((did0 >> 8) & 0xff) < 2) {
- stellaris_info->iosc_freq = 15000000;
- stellaris_info->iosc_desc = " (±50%)";
- }
- break;
- case 1:
- switch ((did0 >> 16) & 0xff) {
+ /* get device class */
+ if (DID0_VER(did0) > 0) {
+ stellaris_info->target_class = (did0 >> 16) & 0xFF;
+ } else {
+ /* Sandstorm class */
+ stellaris_info->target_class = 0;
+ }
+
+ switch (stellaris_info->target_class) {
+ case 0: /* Sandstorm */
+ /*
+ * Current (2009-August) parts seem to be rev C2 and use 12 MHz.
+ * Parts before rev C0 used 15 MHz; some C0 parts use 15 MHz
+ * (LM3S618), but some other C0 parts are 12 MHz (LM3S811).
+ */
+ if (((did0 >> 8) & 0xff) < 2) {
+ stellaris_info->iosc_freq = 15000000;
+ stellaris_info->iosc_desc = " (±50%)";
+ }
+ break;
+
case 1: /* Fury */
break;
+
case 4: /* Tempest */
+ case 5: /* Blizzard */
+ case 6: /* Firestorm */
stellaris_info->iosc_freq = 16000000; /* +/- 1% */
stellaris_info->iosc_desc = " (±1%)";
/* FALL THROUGH */
+
case 3: /* DustDevil */
stellaris_info->xtal_mask = 0x1f;
break;
+
default:
LOG_WARNING("Unknown did0 class");
- }
- default:
- break;
- LOG_WARNING("Unknown did0 version");
}
- for (i = 0; StellarisParts[i].partno; i++)
- {
- if (StellarisParts[i].partno == ((did1 >> 16) & 0xFF))
+ for (i = 0; StellarisParts[i].partno; i++) {
+ if ((StellarisParts[i].partno == ((did1 >> 16) & 0xFF)) &&
+ (StellarisParts[i].class == stellaris_info->target_class))
break;
}
stellaris_info->did1 = did1;
stellaris_info->num_lockbits = 1 + (stellaris_info->dc0 & 0xFFFF);
- stellaris_info->num_pages = 2 *(1 + (stellaris_info->dc0 & 0xFFFF));
+ stellaris_info->num_pages = 2 * (1 + (stellaris_info->dc0 & 0xFFFF));
stellaris_info->pagesize = 1024;
- bank->size = 1024 * stellaris_info->num_pages;
stellaris_info->pages_in_lockregion = 2;
- target_read_u32(target, SCB_BASE | FMPPE, &stellaris_info->lockbits);
-
- /* provide this for the benefit of the higher flash driver layers */
- bank->num_sectors = stellaris_info->num_pages;
- bank->sectors = malloc(sizeof(struct flash_sector) * bank->num_sectors);
- for (i = 0; i < bank->num_sectors; i++)
- {
- bank->sectors[i].offset = i * stellaris_info->pagesize;
- bank->sectors[i].size = stellaris_info->pagesize;
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = -1;
- }
-
- /* Read main and master clock freqency register */
- stellaris_read_clock_info(bank);
- status = stellaris_get_flash_status(bank);
+ /* REVISIT for at least Tempest parts, read NVMSTAT.FWB too.
+ * That exposes a 32-word Flash Write Buffer ... enabling
+ * writes of more than one word at a time.
+ */
return ERROR_OK;
}
static int stellaris_protect_check(struct flash_bank *bank)
{
- uint32_t status;
-
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
+ struct stellaris_flash_bank *stellaris = bank->driver_priv;
+ int status = ERROR_OK;
+ unsigned i;
+ unsigned page;
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
+ if (stellaris->did1 == 0)
+ return ERROR_FLASH_BANK_NOT_PROBED;
- if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
+ for (i = 0; i < (unsigned) bank->num_sectors; i++)
+ bank->sectors[i].is_protected = -1;
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
+ /* Read each Flash Memory Protection Program Enable (FMPPE) register
+ * to report any pages that we can't write. Ignore the Read Enable
+ * register (FMPRE).
+ */
+ for (i = 0, page = 0;
+ i < DIV_ROUND_UP(stellaris->num_lockbits, 32u);
+ i++) {
+ uint32_t lockbits;
+
+ status = target_read_u32(bank->target,
+ SCB_BASE + (i ? (FMPPE0 + 4 * i) : FMPPE),
+ &lockbits);
+ LOG_DEBUG("FMPPE%d = %#8.8x (status %d)", i,
+ (unsigned) lockbits, status);
+ if (status != ERROR_OK)
+ goto done;
+
+ for (unsigned j = 0; j < 32; j++) {
+ unsigned k;
+
+ for (k = 0; k < stellaris->pages_in_lockregion; k++) {
+ if (page >= (unsigned) bank->num_sectors)
+ goto done;
+ bank->sectors[page++].is_protected =
+ !(lockbits & (1 << j));
+ }
+ }
}
- status = stellaris_get_flash_status(bank);
- stellaris_info->lockbits = status >> 16;
-
- return ERROR_OK;
+done:
+ return status;
}
static int stellaris_erase(struct flash_bank *bank, int first, int last)
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- if (bank->target->state != TARGET_HALTED)
- {
+ if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
if ((first < 0) || (last < first) || (last >= (int)stellaris_info->num_pages))
- {
return ERROR_FLASH_SECTOR_INVALID;
- }
if ((first == 0) && (last == ((int)stellaris_info->num_pages-1)))
- {
return stellaris_mass_erase(bank);
- }
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank,0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
- for (banknr = first; banknr <= last; banknr++)
- {
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
+ for (banknr = first; banknr <= last; banknr++) {
/* Address is first word in page */
target_write_u32(target, FLASH_FMA, banknr * stellaris_info->pagesize);
/* Write erase command */
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_ERASE);
/* Wait until erase complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while (flash_fmc & FMC_ERASE);
+ } while (flash_fmc & FMC_ERASE);
/* Check acess violations */
target_read_u32(target, FLASH_CRIS, &flash_cris);
- if (flash_cris & (AMASK))
- {
- LOG_WARNING("Error erasing flash page %i, flash_cris 0x%" PRIx32 "", banknr, flash_cris);
+ if (flash_cris & (AMASK)) {
+ LOG_WARNING("Error erasing flash page %i, flash_cris 0x%" PRIx32 "",
+ banknr, flash_cris);
target_write_u32(target, FLASH_CRIS, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
- if (bank->target->state != TARGET_HALTED)
- {
+ if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- if ((first < 0) || (last < first) || (last >= stellaris_info->num_lockbits))
- {
- return ERROR_FLASH_SECTOR_INVALID;
+ if (!set) {
+ LOG_ERROR("Hardware doesn't support page-level unprotect. "
+ "Try the 'recover' command.");
+ return ERROR_COMMAND_SYNTAX_ERROR;
}
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
+ return ERROR_FLASH_BANK_NOT_PROBED;
+
+ /* lockregions are 2 pages ... must protect [even..odd] */
+ if ((first < 0) || (first & 1)
+ || (last < first) || !(last & 1)
+ || (last >= 2 * stellaris_info->num_lockbits)) {
+ LOG_ERROR("Can't protect unaligned or out-of-range pages.");
+ return ERROR_FLASH_SECTOR_INVALID;
}
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as an Stellaris MCU");
+ /* Refresh flash controller timing */
+ stellaris_read_clock_info(bank);
+ stellaris_set_flash_timing(bank);
+
+ /* convert from pages to lockregions */
+ first /= 2;
+ last /= 2;
+
+ /* FIXME this assumes single FMPPE, for a max of 64K of flash!!
+ * Current parts can be much bigger.
+ */
+ if (last >= 32) {
+ LOG_ERROR("No support yet for protection > 64K");
return ERROR_FLASH_OPERATION_FAILED;
}
- /* Configure the flash controller timing */
- stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ target_read_u32(target, SCB_BASE | FMPPE, &fmppe);
- fmppe = stellaris_info->lockbits;
for (lockregion = first; lockregion <= last; lockregion++)
- {
- if (set)
- fmppe &= ~(1 << lockregion);
- else
- fmppe |= (1 << lockregion);
- }
+ fmppe &= ~(1 << lockregion);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
- LOG_DEBUG("fmppe 0x%" PRIx32 "",fmppe);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
+ LOG_DEBUG("fmppe 0x%" PRIx32 "", fmppe);
target_write_u32(target, SCB_BASE | FMPPE, fmppe);
+
/* Commit FMPPE */
target_write_u32(target, FLASH_FMA, 1);
+
/* Write commit command */
- /* TODO safety check, sice this cannot be undone */
- LOG_WARNING("Flash protection cannot be removed once commited, commit is NOT executed !");
+ /* REVISIT safety check, since this cannot be undone
+ * except by the "Recover a locked device" procedure.
+ * REVISIT DustDevil-A0 parts have an erratum making FMPPE commits
+ * inadvisable ... it makes future mass erase operations fail.
+ */
+ LOG_WARNING("Flash protection cannot be removed once committed, commit is NOT executed !");
/* target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_COMT); */
+
/* Wait until erase complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while (flash_fmc & FMC_COMT);
+ } while (flash_fmc & FMC_COMT);
/* Check acess violations */
target_read_u32(target, FLASH_CRIS, &flash_cris);
- if (flash_cris & (AMASK))
- {
+ if (flash_cris & (AMASK)) {
LOG_WARNING("Error setting flash page protection, flash_cris 0x%" PRIx32 "", flash_cris);
target_write_u32(target, FLASH_CRIS, 0);
return ERROR_FLASH_OPERATION_FAILED;
}
- target_read_u32(target, SCB_BASE | FMPPE, &stellaris_info->lockbits);
-
return ERROR_OK;
}
-static uint8_t stellaris_write_code[] =
-{
-/*
- Call with :
- r0 = buffer address
- r1 = destination address
- r2 = bytecount (in) - endaddr (work)
-
- Used registers:
- r3 = pFLASH_CTRL_BASE
- r4 = FLASHWRITECMD
- r5 = #1
- r6 = bytes written
- r7 = temp reg
-*/
- 0x07,0x4B, /* ldr r3,pFLASH_CTRL_BASE */
- 0x08,0x4C, /* ldr r4,FLASHWRITECMD */
- 0x01,0x25, /* movs r5, 1 */
- 0x00,0x26, /* movs r6, #0 */
-/* mainloop: */
- 0x19,0x60, /* str r1, [r3, #0] */
- 0x87,0x59, /* ldr r7, [r0, r6] */
- 0x5F,0x60, /* str r7, [r3, #4] */
- 0x9C,0x60, /* str r4, [r3, #8] */
-/* waitloop: */
- 0x9F,0x68, /* ldr r7, [r3, #8] */
- 0x2F,0x42, /* tst r7, r5 */
- 0xFC,0xD1, /* bne waitloop */
- 0x04,0x31, /* adds r1, r1, #4 */
- 0x04,0x36, /* adds r6, r6, #4 */
- 0x96,0x42, /* cmp r6, r2 */
- 0xF4,0xD1, /* bne mainloop */
- /* exit: */
- 0xFE,0xE7, /* b exit */
-/* pFLASH_CTRL_BASE: */
- 0x00,0xD0,0x0F,0x40, /* .word 0x400FD000 */
-/* FLASHWRITECMD: */
- 0x01,0x00,0x42,0xA4 /* .word 0xA4420001 */
+/* see contib/loaders/flash/stellaris.s for src */
+
+static const uint8_t stellaris_write_code[] = {
+ /* write: */
+ 0xDF, 0xF8, 0x40, 0x40, /* ldr r4, pFLASH_CTRL_BASE */
+ 0xDF, 0xF8, 0x40, 0x50, /* ldr r5, FLASHWRITECMD */
+ /* wait_fifo: */
+ 0xD0, 0xF8, 0x00, 0x80, /* ldr r8, [r0, #0] */
+ 0xB8, 0xF1, 0x00, 0x0F, /* cmp r8, #0 */
+ 0x17, 0xD0, /* beq exit */
+ 0x47, 0x68, /* ldr r7, [r0, #4] */
+ 0x47, 0x45, /* cmp r7, r8 */
+ 0xF7, 0xD0, /* beq wait_fifo */
+ /* mainloop: */
+ 0x22, 0x60, /* str r2, [r4, #0] */
+ 0x02, 0xF1, 0x04, 0x02, /* add r2, r2, #4 */
+ 0x57, 0xF8, 0x04, 0x8B, /* ldr r8, [r7], #4 */
+ 0xC4, 0xF8, 0x04, 0x80, /* str r8, [r4, #4] */
+ 0xA5, 0x60, /* str r5, [r4, #8] */
+ /* busy: */
+ 0xD4, 0xF8, 0x08, 0x80, /* ldr r8, [r4, #8] */
+ 0x18, 0xF0, 0x01, 0x0F, /* tst r8, #1 */
+ 0xFA, 0xD1, /* bne busy */
+ 0x8F, 0x42, /* cmp r7, r1 */
+ 0x28, 0xBF, /* it cs */
+ 0x00, 0xF1, 0x08, 0x07, /* addcs r7, r0, #8 */
+ 0x47, 0x60, /* str r7, [r0, #4] */
+ 0x01, 0x3B, /* subs r3, r3, #1 */
+ 0x03, 0xB1, /* cbz r3, exit */
+ 0xE2, 0xE7, /* b wait_fifo */
+ /* exit: */
+ 0x00, 0xBE, /* bkpt #0 */
+
+ /* pFLASH_CTRL_BASE: */
+ 0x00, 0xD0, 0x0F, 0x40, /* .word 0x400FD000 */
+ /* FLASHWRITECMD: */
+ 0x01, 0x00, 0x42, 0xA4 /* .word 0xA4420001 */
};
-
-static int stellaris_write_block(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t wcount)
+static int stellaris_write_block(struct flash_bank *bank,
+ uint8_t *buffer, uint32_t offset, uint32_t wcount)
{
struct target *target = bank->target;
- uint32_t buffer_size = 8192;
+ uint32_t buffer_size = 16384;
struct working_area *source;
struct working_area *write_algorithm;
uint32_t address = bank->base + offset;
- struct reg_param reg_params[3];
+ struct reg_param reg_params[4];
struct armv7m_algorithm armv7m_info;
int retval = ERROR_OK;
+ /* power of two, and multiple of word size */
+ static const unsigned buf_min = 128;
+
+ /* for small buffers it's faster not to download an algorithm */
+ if (wcount * 4 < buf_min)
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+
LOG_DEBUG("(bank=%p buffer=%p offset=%08" PRIx32 " wcount=%08" PRIx32 "",
bank, buffer, offset, wcount);
/* flash write code */
- if (target_alloc_working_area(target, sizeof(stellaris_write_code), &write_algorithm) != ERROR_OK)
- {
- LOG_WARNING("no working area available, can't do block memory writes");
+ if (target_alloc_working_area(target, sizeof(stellaris_write_code),
+ &write_algorithm) != ERROR_OK) {
+ LOG_DEBUG("no working area for block memory writes");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
};
- target_write_buffer(target, write_algorithm->address, sizeof(stellaris_write_code), stellaris_write_code);
+ /* plus a buffer big enough for this data */
+ if (wcount * 4 < buffer_size)
+ buffer_size = wcount * 4;
/* memory buffer */
- while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
- {
- LOG_DEBUG("called target_alloc_working_area(target=%p buffer_size=%08" PRIx32 " source=%p)",
- target, buffer_size, source);
+ while (target_alloc_working_area_try(target, buffer_size, &source) != ERROR_OK) {
buffer_size /= 2;
- if (buffer_size <= 256)
- {
- /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
- if (write_algorithm)
- target_free_working_area(target, write_algorithm);
-
- LOG_WARNING("no large enough working area available, can't do block memory writes");
+ if (buffer_size <= buf_min) {
+ target_free_working_area(target, write_algorithm);
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
+ LOG_DEBUG("retry target_alloc_working_area(%s, size=%u)",
+ target_name(target), (unsigned) buffer_size);
};
+ target_write_buffer(target, write_algorithm->address,
+ sizeof(stellaris_write_code),
+ (uint8_t *) stellaris_write_code);
+
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARMV7M_MODE_ANY;
init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
- while (wcount > 0)
- {
- uint32_t thisrun_count = (wcount > (buffer_size / 4)) ? (buffer_size / 4) : wcount;
-
- target_write_buffer(target, source->address, thisrun_count * 4, buffer);
-
- buf_set_u32(reg_params[0].value, 0, 32, source->address);
- buf_set_u32(reg_params[1].value, 0, 32, address);
- buf_set_u32(reg_params[2].value, 0, 32, 4*thisrun_count);
- LOG_INFO("Algorithm flash write %" PRIi32 " words to 0x%" PRIx32 ", %" PRIi32 " remaining", thisrun_count, address, (wcount - thisrun_count));
- LOG_DEBUG("Algorithm flash write %" PRIi32 " words to 0x%" PRIx32 ", %" PRIi32 " remaining", thisrun_count, address, (wcount - thisrun_count));
- if ((retval = target_run_algorithm(target, 0, NULL, 3, reg_params, write_algorithm->address, write_algorithm->address + sizeof(stellaris_write_code)-10, 10000, &armv7m_info)) != ERROR_OK)
- {
- LOG_ERROR("error executing stellaris flash write algorithm");
- retval = ERROR_FLASH_OPERATION_FAILED;
- break;
- }
+ buf_set_u32(reg_params[0].value, 0, 32, source->address);
+ buf_set_u32(reg_params[1].value, 0, 32, source->address + source->size);
+ buf_set_u32(reg_params[2].value, 0, 32, address);
+ buf_set_u32(reg_params[3].value, 0, 32, wcount);
- buffer += thisrun_count * 4;
- address += thisrun_count * 4;
- wcount -= thisrun_count;
- }
+ retval = target_run_flash_async_algorithm(target, buffer, wcount, 4,
+ 0, NULL,
+ 4, reg_params,
+ source->address, source->size,
+ write_algorithm->address, 0,
+ &armv7m_info);
+
+ if (retval == ERROR_FLASH_OPERATION_FAILED)
+ LOG_ERROR("error %d executing stellaris flash write algorithm", retval);
target_free_working_area(target, write_algorithm);
target_free_working_area(target, source);
destroy_reg_param(®_params[0]);
destroy_reg_param(®_params[1]);
destroy_reg_param(®_params[2]);
+ destroy_reg_param(®_params[3]);
return retval;
}
-static int stellaris_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+static int stellaris_write(struct flash_bank *bank, uint8_t *buffer,
+ uint32_t offset, uint32_t count)
{
struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
struct target *target = bank->target;
uint32_t bytes_written = 0;
int retval;
- if (bank->target->state != TARGET_HALTED)
- {
+ if (bank->target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
bank, buffer, offset, count);
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
-
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as a Stellaris processor");
- return ERROR_FLASH_OPERATION_FAILED;
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
- if (offset & 0x3)
- {
+ if (offset & 0x3) {
LOG_WARNING("offset size must be word aligned");
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
}
if (offset + count > bank->size)
return ERROR_FLASH_DST_OUT_OF_BANK;
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
/* multiple words to be programmed? */
- if (words_remaining > 0)
- {
+ if (words_remaining > 0) {
/* try using a block write */
- if ((retval = stellaris_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
- {
- if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
- {
- /* if block write failed (no sufficient working area),
- * we use normal (slow) single dword accesses */
- LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
- }
- else if (retval == ERROR_FLASH_OPERATION_FAILED)
- {
+ retval = stellaris_write_block(bank, buffer, offset,
+ words_remaining);
+ if (retval != ERROR_OK) {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE) {
+ LOG_DEBUG("writing flash word-at-a-time");
+ } else if (retval == ERROR_FLASH_OPERATION_FAILED) {
/* if an error occured, we examine the reason, and quit */
target_read_u32(target, FLASH_CRIS, &flash_cris);
LOG_ERROR("flash writing failed with CRIS: 0x%" PRIx32 "", flash_cris);
return ERROR_FLASH_OPERATION_FAILED;
}
- }
- else
- {
+ } else {
buffer += words_remaining * 4;
address += words_remaining * 4;
words_remaining = 0;
}
}
- while (words_remaining > 0)
- {
+ while (words_remaining > 0) {
if (!(address & 0xff))
LOG_DEBUG("0x%" PRIx32 "", address);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
/* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */
/* Wait until write complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
} while (flash_fmc & FMC_WRITE);
words_remaining--;
}
- if (bytes_remaining)
- {
+ if (bytes_remaining) {
uint8_t last_word[4] = {0xff, 0xff, 0xff, 0xff};
- int i = 0;
- while (bytes_remaining > 0)
- {
- last_word[i++] = *(buffer + bytes_written);
- bytes_remaining--;
- bytes_written++;
- }
+ /* copy the last remaining bytes into the write buffer */
+ memcpy(last_word, buffer+bytes_written, bytes_remaining);
if (!(address & 0xff))
LOG_DEBUG("0x%" PRIx32 "", address);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_WRITE);
/* LOG_DEBUG("0x%x 0x%x 0x%x",address,buf_get_u32(buffer, 0, 32),FMC_WRKEY | FMC_WRITE); */
/* Wait until write complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
} while (flash_fmc & FMC_WRITE);
}
/* Check access violations */
target_read_u32(target, FLASH_CRIS, &flash_cris);
- if (flash_cris & (AMASK))
- {
+ if (flash_cris & (AMASK)) {
LOG_DEBUG("flash_cris 0x%" PRIx32 "", flash_cris);
return ERROR_FLASH_OPERATION_FAILED;
}
static int stellaris_probe(struct flash_bank *bank)
{
- /* we can't probe on an stellaris
- * if this is an stellaris, it has the configured flash
+ struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
+ int retval;
+
+ /* If this is a stellaris chip, it has flash; probe() is just
+ * to figure out how much is present. Only do it once.
*/
+ if (stellaris_info->did1 != 0)
+ return ERROR_OK;
- if (bank->target->state != TARGET_HALTED)
- {
- LOG_ERROR("Target not halted");
- return ERROR_TARGET_NOT_HALTED;
+ /* stellaris_read_part_info() already handled error checking and
+ * reporting. Note that it doesn't write, so we don't care about
+ * whether the target is halted or not.
+ */
+ retval = stellaris_read_part_info(bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (bank->sectors) {
+ free(bank->sectors);
+ bank->sectors = NULL;
}
- /* stellaris_read_part_info() already takes care about error checking and reporting */
- return stellaris_read_part_info(bank);
-}
+ /* provide this for the benefit of the NOR flash framework */
+ bank->size = 1024 * stellaris_info->num_pages;
+ bank->num_sectors = stellaris_info->num_pages;
+ bank->sectors = calloc(bank->num_sectors, sizeof(struct flash_sector));
+ for (int i = 0; i < bank->num_sectors; i++) {
+ bank->sectors[i].offset = i * stellaris_info->pagesize;
+ bank->sectors[i].size = stellaris_info->pagesize;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = -1;
+ }
-static int stellaris_auto_probe(struct flash_bank *bank)
-{
- struct stellaris_flash_bank *stellaris_info = bank->driver_priv;
- if (stellaris_info->did1)
- return ERROR_OK;
- return stellaris_probe(bank);
+ return retval;
}
static int stellaris_mass_erase(struct flash_bank *bank)
stellaris_info = bank->driver_priv;
target = bank->target;
- if (target->state != TARGET_HALTED)
- {
+ if (target->state != TARGET_HALTED) {
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
if (stellaris_info->did1 == 0)
- {
- stellaris_read_part_info(bank);
- }
+ return ERROR_FLASH_BANK_NOT_PROBED;
- if (stellaris_info->did1 == 0)
- {
- LOG_WARNING("Cannot identify target as Stellaris");
- return ERROR_FLASH_OPERATION_FAILED;
- }
-
- /* Configure the flash controller timing */
+ /* Refresh flash controller timing */
stellaris_read_clock_info(bank);
- stellaris_set_flash_mode(bank, 0);
+ stellaris_set_flash_timing(bank);
/* Clear and disable flash programming interrupts */
target_write_u32(target, FLASH_CIM, 0);
target_write_u32(target, FLASH_MISC, PMISC | AMISC);
+ /* REVISIT this clobbers state set by any halted firmware ...
+ * it might want to process those IRQs.
+ */
+
target_write_u32(target, FLASH_FMA, 0);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
/* Wait until erase complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while (flash_fmc & FMC_MERASE);
+ } while (flash_fmc & FMC_MERASE);
/* if device has > 128k, then second erase cycle is needed
* this is only valid for older devices, but will not hurt */
- if (stellaris_info->num_pages * stellaris_info->pagesize > 0x20000)
- {
+ if (stellaris_info->num_pages * stellaris_info->pagesize > 0x20000) {
target_write_u32(target, FLASH_FMA, 0x20000);
target_write_u32(target, FLASH_FMC, FMC_WRKEY | FMC_MERASE);
/* Wait until erase complete */
- do
- {
+ do {
target_read_u32(target, FLASH_FMC, &flash_fmc);
- }
- while (flash_fmc & FMC_MERASE);
+ } while (flash_fmc & FMC_MERASE);
}
return ERROR_OK;
int i;
if (CMD_ARGC < 1)
- {
- command_print(CMD_CTX, "stellaris mass_erase <bank>");
- return ERROR_OK;
- }
+ return ERROR_COMMAND_SYNTAX_ERROR;
struct flash_bank *bank;
int retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
if (ERROR_OK != retval)
return retval;
- if (stellaris_mass_erase(bank) == ERROR_OK)
- {
+ if (stellaris_mass_erase(bank) == ERROR_OK) {
/* set all sectors as erased */
for (i = 0; i < bank->num_sectors; i++)
- {
bank->sectors[i].is_erased = 1;
- }
command_print(CMD_CTX, "stellaris mass erase complete");
- }
- else
- {
+ } else
command_print(CMD_CTX, "stellaris mass erase failed");
- }
return ERROR_OK;
}
+/**
+ * Perform the Stellaris "Recovering a 'Locked' Device procedure.
+ * This performs a mass erase and then restores all nonvolatile registers
+ * (including USER_* registers and flash lock bits) to their defaults.
+ * Accordingly, flash can be reprogrammed, and JTAG can be used.
+ *
+ * NOTE that DustDevil parts (at least rev A0 silicon) have errata which
+ * can affect this operation if flash protection has been enabled.
+ */
+COMMAND_HANDLER(stellaris_handle_recover_command)
+{
+ struct flash_bank *bank;
+ int retval;
+
+ retval = CALL_COMMAND_HANDLER(flash_command_get_bank, 0, &bank);
+ if (retval != ERROR_OK)
+ return retval;
+
+ /* REVISIT ... it may be worth sanity checking that the AP is
+ * inactive before we start. ARM documents that switching a DP's
+ * mode while it's active can cause fault modes that need a power
+ * cycle to recover.
+ */
+
+ /* assert SRST */
+ if (!(jtag_get_reset_config() & RESET_HAS_SRST)) {
+ LOG_ERROR("Can't recover Stellaris flash without SRST");
+ return ERROR_FAIL;
+ }
+ adapter_assert_reset();
+
+ for (int i = 0; i < 5; i++) {
+ retval = dap_to_swd(bank->target);
+ if (retval != ERROR_OK)
+ goto done;
+
+ retval = dap_to_jtag(bank->target);
+ if (retval != ERROR_OK)
+ goto done;
+ }
+
+ /* de-assert SRST */
+ adapter_deassert_reset();
+ retval = jtag_execute_queue();
+
+ /* wait 400+ msec ... OK, "1+ second" is simpler */
+ usleep(1000);
+
+ /* USER INTERVENTION required for the power cycle
+ * Restarting OpenOCD is likely needed because of mode switching.
+ */
+ LOG_INFO("USER ACTION: "
+ "power cycle Stellaris chip, then restart OpenOCD.");
+
+done:
+ return retval;
+}
+
static const struct command_registration stellaris_exec_command_handlers[] = {
{
.name = "mass_erase",
- .handler = &stellaris_handle_mass_erase_command,
+ .usage = "<bank>",
+ .handler = stellaris_handle_mass_erase_command,
.mode = COMMAND_EXEC,
.help = "erase entire device",
},
+ {
+ .name = "recover",
+ .handler = stellaris_handle_recover_command,
+ .mode = COMMAND_EXEC,
+ .usage = "bank_id",
+ .help = "recover (and erase) locked device",
+ },
COMMAND_REGISTRATION_DONE
};
static const struct command_registration stellaris_command_handlers[] = {
{
.name = "stellaris",
- .mode = COMMAND_ANY,
+ .mode = COMMAND_EXEC,
.help = "Stellaris flash command group",
+ .usage = "",
.chain = stellaris_exec_command_handlers,
},
COMMAND_REGISTRATION_DONE
};
struct flash_driver stellaris_flash = {
- .name = "stellaris",
- .commands = stellaris_command_handlers,
- .flash_bank_command = &stellaris_flash_bank_command,
- .erase = &stellaris_erase,
- .protect = &stellaris_protect,
- .write = &stellaris_write,
- .probe = &stellaris_probe,
- .auto_probe = &stellaris_auto_probe,
- .erase_check = &default_flash_mem_blank_check,
- .protect_check = &stellaris_protect_check,
- .info = &stellaris_info,
- };
+ .name = "stellaris",
+ .commands = stellaris_command_handlers,
+ .flash_bank_command = stellaris_flash_bank_command,
+ .erase = stellaris_erase,
+ .protect = stellaris_protect,
+ .write = stellaris_write,
+ .read = default_flash_read,
+ .probe = stellaris_probe,
+ .auto_probe = stellaris_probe,
+ .erase_check = default_flash_blank_check,
+ .protect_check = stellaris_protect_check,
+ .info = get_stellaris_info,
+};
projects / fw / openocd / blobdiff