summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_intel_16.s57
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_intel_32.s57
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_intel_8.s57
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_span_16.s75
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_span_16_dq7.s66
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_span_32.s75
-rw-r--r--contrib/loaders/flash/armv4_5_cfi_span_8.s75
-rw-r--r--src/flash/nor/cfi.c19
8 files changed, 475 insertions, 6 deletions
diff --git a/contrib/loaders/flash/armv4_5_cfi_intel_16.s b/contrib/loaders/flash/armv4_5_cfi_intel_16.s
new file mode 100644
index 00000000..52836006
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_intel_16.s
@@ -0,0 +1,57 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* algorithm register usage:
+ * r0: source address (in RAM)
+ * r1: target address (in Flash)
+ * r2: count
+ * r3: flash write command
+ * r4: status byte (returned to host)
+ * r5: busy test pattern
+ * r6: error test pattern
+ */
+
+loop:
+ ldrh r4, [r0], #2
+ strh r3, [r1]
+ strh r4, [r1]
+busy:
+ ldrh r4, [r1]
+ and r7, r4, r5
+ cmp r7, r5
+ bne busy
+ tst r4, r6
+ bne done
+ subs r2, r2, #1
+ beq done
+ add r1, r1, #2
+ b loop
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_intel_32.s b/contrib/loaders/flash/armv4_5_cfi_intel_32.s
new file mode 100644
index 00000000..fbab3159
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_intel_32.s
@@ -0,0 +1,57 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* algorithm register usage:
+ * r0: source address (in RAM)
+ * r1: target address (in Flash)
+ * r2: count
+ * r3: flash write command
+ * r4: status byte (returned to host)
+ * r5: busy test pattern
+ * r6: error test pattern
+ */
+
+loop:
+ ldr r4, [r0], #4
+ str r3, [r1]
+ str r4, [r1]
+busy:
+ ldr r4, [r1]
+ and r7, r4, r5
+ cmp r7, r5
+ bne busy
+ tst r4, r6
+ bne done
+ subs r2, r2, #1
+ beq done
+ add r1, r1, #4
+ b loop
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_intel_8.s b/contrib/loaders/flash/armv4_5_cfi_intel_8.s
new file mode 100644
index 00000000..64a2f8d6
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_intel_8.s
@@ -0,0 +1,57 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* algorithm register usage:
+ * r0: source address (in RAM)
+ * r1: target address (in Flash)
+ * r2: count
+ * r3: flash write command
+ * r4: status byte (returned to host)
+ * r5: busy test pattern
+ * r6: error test pattern
+ */
+
+loop:
+ ldrb r4, [r0], #1
+ strb r3, [r1]
+ strb r4, [r1]
+busy:
+ ldrb r4, [r1]
+ and r7, r4, r5
+ cmp r7, r5
+ bne busy
+ tst r4, r6
+ bne done
+ subs r2, r2, #1
+ beq done
+ add r1, r1, #1
+ b loop
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_span_16.s b/contrib/loaders/flash/armv4_5_cfi_span_16.s
new file mode 100644
index 00000000..d363fbda
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_span_16.s
@@ -0,0 +1,75 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* input parameters - */
+/* R0 = source address */
+/* R1 = destination address */
+/* R2 = number of writes */
+/* R3 = flash write command */
+/* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
+/* output parameters - */
+/* R5 = 0x80 ok 0x00 bad */
+/* temp registers - */
+/* R6 = value read from flash to test status */
+/* R7 = holding register */
+/* unlock registers - */
+/* R8 = unlock1_addr */
+/* R9 = unlock1_cmd */
+/* R10 = unlock2_addr */
+/* R11 = unlock2_cmd */
+
+code:
+ ldrh r5, [r0], #2
+ strh r9, [r8]
+ strh r11, [r10]
+ strh r3, [r8]
+ strh r5, [r1]
+ nop
+busy:
+ ldrh r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ ands r6, r6, r4, lsr #2
+ beq busy /* b if DQ5 low */
+ ldrh r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ mov r5, #0 /* 0x0 - return 0x00, error */
+ bne done
+cont:
+ subs r2, r2, #1 /* 0x1 */
+ moveq r5, #128 /* 0x80 */
+ beq done
+ add r1, r1, #2 /* 0x2 */
+ b code
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_span_16_dq7.s b/contrib/loaders/flash/armv4_5_cfi_span_16_dq7.s
new file mode 100644
index 00000000..fb405387
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_span_16_dq7.s
@@ -0,0 +1,66 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* input parameters - */
+/* R0 = source address */
+/* R1 = destination address */
+/* R2 = number of writes */
+/* R3 = flash write command */
+/* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
+/* output parameters - */
+/* R5 = 0x80 ok 0x00 bad */
+/* temp registers - */
+/* R6 = value read from flash to test status */
+/* R7 = holding register */
+/* unlock registers - */
+/* R8 = unlock1_addr */
+/* R9 = unlock1_cmd */
+/* R10 = unlock2_addr */
+/* R11 = unlock2_cmd */
+
+code:
+ ldrh r5, [r0], #2
+ strh r9, [r8]
+ strh r11, [r10]
+ strh r3, [r8]
+ strh r5, [r1]
+ nop
+busy:
+ ldrh r6, [r1]
+ eor r7, r5, r6
+ ands r7, #0x80
+ bne busy
+ subs r2, r2, #1 /* 0x1 */
+ moveq r5, #128 /* 0x80 */
+ beq done
+ add r1, r1, #2 /* 0x2 */
+ b code
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_span_32.s b/contrib/loaders/flash/armv4_5_cfi_span_32.s
new file mode 100644
index 00000000..5a7ab990
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_span_32.s
@@ -0,0 +1,75 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* input parameters - */
+/* R0 = source address */
+/* R1 = destination address */
+/* R2 = number of writes */
+/* R3 = flash write command */
+/* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
+/* output parameters - */
+/* R5 = 0x80 ok 0x00 bad */
+/* temp registers - */
+/* R6 = value read from flash to test status */
+/* R7 = holding register */
+/* unlock registers - */
+/* R8 = unlock1_addr */
+/* R9 = unlock1_cmd */
+/* R10 = unlock2_addr */
+/* R11 = unlock2_cmd */
+
+code:
+ ldr r5, [r0], #4
+ str r9, [r8]
+ str r11, [r10]
+ str r3, [r8]
+ str r5, [r1]
+ nop
+busy:
+ ldr r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ ands r6, r6, r4, lsr #2
+ beq busy /* b if DQ5 low */
+ ldr r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ mov r5, #0 /* 0x0 - return 0x00, error */
+ bne done
+cont:
+ subs r2, r2, #1 /* 0x1 */
+ moveq r5, #128 /* 0x80 */
+ beq done
+ add r1, r1, #4 /* 0x4 */
+ b code
+done:
+ b done
+
+ .end
diff --git a/contrib/loaders/flash/armv4_5_cfi_span_8.s b/contrib/loaders/flash/armv4_5_cfi_span_8.s
new file mode 100644
index 00000000..65d64da7
--- /dev/null
+++ b/contrib/loaders/flash/armv4_5_cfi_span_8.s
@@ -0,0 +1,75 @@
+/***************************************************************************
+ * Copyright (C) 2005, 2007 by Dominic Rath *
+ * Dominic.Rath@gmx.de *
+ * Copyright (C) 2010 Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
+ * 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. *
+ ***************************************************************************/
+
+ .text
+ .arm
+ .arch armv4
+
+ .section .init
+
+/* input parameters - */
+/* R0 = source address */
+/* R1 = destination address */
+/* R2 = number of writes */
+/* R3 = flash write command */
+/* R4 = constant to mask DQ7 bits (also used for Dq5 with shift) */
+/* output parameters - */
+/* R5 = 0x80 ok 0x00 bad */
+/* temp registers - */
+/* R6 = value read from flash to test status */
+/* R7 = holding register */
+/* unlock registers - */
+/* R8 = unlock1_addr */
+/* R9 = unlock1_cmd */
+/* R10 = unlock2_addr */
+/* R11 = unlock2_cmd */
+
+code:
+ ldrb r5, [r0], #1
+ strb r9, [r8]
+ strb r11, [r10]
+ strb r3, [r8]
+ strb r5, [r1]
+ nop
+busy:
+ ldrb r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ ands r6, r6, r4, lsr #2
+ beq busy /* b if DQ5 low */
+ ldrb r6, [r1]
+ eor r7, r5, r6
+ ands r7, r4, r7
+ beq cont /* b if DQ7 == Data7 */
+ mov r5, #0 /* 0x0 - return 0x00, error */
+ bne done
+cont:
+ subs r2, r2, #1 /* 0x1 */
+ moveq r5, #128 /* 0x80 */
+ beq done
+ add r1, r1, #1 /* 0x1 */
+ b code
+done:
+ b done
+
+ .end
diff --git a/src/flash/nor/cfi.c b/src/flash/nor/cfi.c
index 4165166f..74362c4f 100644
--- a/src/flash/nor/cfi.c
+++ b/src/flash/nor/cfi.c
@@ -1226,6 +1226,7 @@ static int cfi_intel_write_block(struct flash_bank *bank, uint8_t *buffer,
* r6: error test pattern
*/
+ /* see contib/loaders/flash/armv4_5_cfi_intel_32.s for src */
static const uint32_t word_32_code[] = {
0xe4904004, /* loop: ldr r4, [r0], #4 */
0xe5813000, /* str r3, [r1] */
@@ -1243,6 +1244,7 @@ static int cfi_intel_write_block(struct flash_bank *bank, uint8_t *buffer,
0xeafffffe /* done: b -2 */
};
+ /* see contib/loaders/flash/armv4_5_cfi_intel_16.s for src */
static const uint32_t word_16_code[] = {
0xe0d040b2, /* loop: ldrh r4, [r0], #2 */
0xe1c130b0, /* strh r3, [r1] */
@@ -1260,6 +1262,7 @@ static int cfi_intel_write_block(struct flash_bank *bank, uint8_t *buffer,
0xeafffffe /* done: b -2 */
};
+ /* see contib/loaders/flash/armv4_5_cfi_intel_8.s for src */
static const uint32_t word_8_code[] = {
0xe4d04001, /* loop: ldrb r4, [r0], #1 */
0xe5c13000, /* strb r3, [r1] */
@@ -1487,6 +1490,7 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer,
/* R10 = unlock2_addr */
/* R11 = unlock2_cmd */
+ /* see contib/loaders/flash/armv4_5_cfi_span_32.s for src */
static const uint32_t word_32_code[] = {
/* 00008100 <sp_32_code>: */
0xe4905004, /* ldr r5, [r0], #4 */
@@ -1519,9 +1523,10 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer,
/* */
/* 00008154 <sp_32_done>: */
0xeafffffe /* b 8154 <sp_32_done> */
- };
+ };
- static const uint32_t word_16_code[] = {
+ /* see contib/loaders/flash/armv4_5_cfi_span_16.s for src */
+ static const uint32_t word_16_code[] = {
/* 00008158 <sp_16_code>: */
0xe0d050b2, /* ldrh r5, [r0], #2 */
0xe1c890b0, /* strh r9, [r8] */
@@ -1553,9 +1558,10 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer,
/* */
/* 000081ac <sp_16_done>: */
0xeafffffe /* b 81ac <sp_16_done> */
- };
+ };
- static const uint32_t word_16_code_dq7only[] = {
+ /* see contib/loaders/flash/armv4_5_cfi_span_16_dq7.s for src */
+ static const uint32_t word_16_code_dq7only[] = {
/* <sp_16_code>: */
0xe0d050b2, /* ldrh r5, [r0], #2 */
0xe1c890b0, /* strh r9, [r8] */
@@ -1578,9 +1584,10 @@ static int cfi_spansion_write_block(struct flash_bank *bank, uint8_t *buffer,
/* */
/* 000081ac <sp_16_done>: */
0xeafffffe /* b 81ac <sp_16_done> */
- };
+ };
- static const uint32_t word_8_code[] = {
+ /* see contib/loaders/flash/armv4_5_cfi_span_8.s for src */
+ static const uint32_t word_8_code[] = {
/* 000081b0 <sp_16_code_end>: */
0xe4d05001, /* ldrb r5, [r0], #1 */
0xe5c89000, /* strb r9, [r8] */
generated by cgit v1.2.3 (git 2.46.0) at 2024-12-22 22:07:08 +0000