kbuild: move asm-offsets.c from SoC directory to arch/$(ARCH)/lib
U-Boot has supported two kinds of asm-offsets.h.
One is generic for all architectures and its source is located at
./lib/asm-offsets.c.
The other is SoC specific and its source is under SoC directory.
The problem here is that only boards with SoC directory can use
the asm-offsets infrastructure.
Putting asm-offsets.c right under CPU directory does not work.
Now a new demand is coming. PowerPC folks want to use asm-offsets.
But no PowerPC boards have SoC directory.
It seems inconsistent that some boards add asm-offsets.c to SoC
directoreis and some to CPU directories.
It looks more reasonable to put asm-offsets.c under arch/$(ARCH)/lib.
This commit merges asm-offsets.c under SoC directories into
arch/$(ARCH)/lib/asm-offsets.c.
By the way, I doubt the necessity of some entries in asm-offsets.c.
I am leaving refactoring to the board maintainers.
Please check "TODO" in the comment blocks in
arch/{arm,nds32}/lib/asm-offsets.c.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Yuantian Tang <Yuantian.Tang@freescale.com>
diff --git a/arch/nds32/lib/asm-offsets.c b/arch/nds32/lib/asm-offsets.c
new file mode 100644
index 0000000..39e3480
--- /dev/null
+++ b/arch/nds32/lib/asm-offsets.c
@@ -0,0 +1,82 @@
+/*
+ * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
+ *
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <common.h>
+
+#include <linux/kbuild.h>
+
+int main(void)
+{
+ /*
+ * TODO : Check if each entry in this file is really necessary.
+ * - struct ftahbc02s
+ * - struct ftsdmc021
+ * - struct andes_pcu
+ * - struct dwcddr21mctl
+ * are used only for generating asm-offsets.h.
+ * It means their offset addresses are referenced only from assembly
+ * code. Is it better to define the macros directly in headers?
+ */
+
+#ifdef CONFIG_FTSMC020
+ OFFSET(FTSMC020_BANK0_CR, ftsmc020, bank[0].cr);
+ OFFSET(FTSMC020_BANK0_TPR, ftsmc020, bank[0].tpr);
+#endif
+ BLANK();
+#ifdef CONFIG_FTAHBC020S
+ OFFSET(FTAHBC020S_SLAVE_BSR_4, ftahbc02s, s_bsr[4]);
+ OFFSET(FTAHBC020S_SLAVE_BSR_6, ftahbc02s, s_bsr[6]);
+ OFFSET(FTAHBC020S_CR, ftahbc02s, cr);
+#endif
+ BLANK();
+#ifdef CONFIG_FTPMU010
+ OFFSET(FTPMU010_PDLLCR0, ftpmu010, PDLLCR0);
+#endif
+ BLANK();
+#ifdef CONFIG_FTSDMC021
+ OFFSET(FTSDMC021_TP1, ftsdmc021, tp1);
+ OFFSET(FTSDMC021_TP2, ftsdmc021, tp2);
+ OFFSET(FTSDMC021_CR1, ftsdmc021, cr1);
+ OFFSET(FTSDMC021_CR2, ftsdmc021, cr2);
+ OFFSET(FTSDMC021_BANK0_BSR, ftsdmc021, bank0_bsr);
+ OFFSET(FTSDMC021_BANK1_BSR, ftsdmc021, bank1_bsr);
+ OFFSET(FTSDMC021_BANK2_BSR, ftsdmc021, bank2_bsr);
+ OFFSET(FTSDMC021_BANK3_BSR, ftsdmc021, bank3_bsr);
+#endif
+ BLANK();
+#ifdef CONFIG_ANDES_PCU
+ OFFSET(ANDES_PCU_PCS4, andes_pcu, pcs4.parm); /* 0x104 */
+#endif
+ BLANK();
+#ifdef CONFIG_DWCDDR21MCTL
+ OFFSET(DWCDDR21MCTL_CCR, dwcddr21mctl, ccr); /* 0x04 */
+ OFFSET(DWCDDR21MCTL_DCR, dwcddr21mctl, dcr); /* 0x04 */
+ OFFSET(DWCDDR21MCTL_IOCR, dwcddr21mctl, iocr); /* 0x08 */
+ OFFSET(DWCDDR21MCTL_CSR, dwcddr21mctl, csr); /* 0x0c */
+ OFFSET(DWCDDR21MCTL_DRR, dwcddr21mctl, drr); /* 0x10 */
+ OFFSET(DWCDDR21MCTL_DLLCR0, dwcddr21mctl, dllcr[0]); /* 0x24 */
+ OFFSET(DWCDDR21MCTL_DLLCR1, dwcddr21mctl, dllcr[1]); /* 0x28 */
+ OFFSET(DWCDDR21MCTL_DLLCR2, dwcddr21mctl, dllcr[2]); /* 0x2c */
+ OFFSET(DWCDDR21MCTL_DLLCR3, dwcddr21mctl, dllcr[3]); /* 0x30 */
+ OFFSET(DWCDDR21MCTL_DLLCR4, dwcddr21mctl, dllcr[4]); /* 0x34 */
+ OFFSET(DWCDDR21MCTL_DLLCR5, dwcddr21mctl, dllcr[5]); /* 0x38 */
+ OFFSET(DWCDDR21MCTL_DLLCR6, dwcddr21mctl, dllcr[6]); /* 0x3c */
+ OFFSET(DWCDDR21MCTL_DLLCR7, dwcddr21mctl, dllcr[7]); /* 0x40 */
+ OFFSET(DWCDDR21MCTL_DLLCR8, dwcddr21mctl, dllcr[8]); /* 0x44 */
+ OFFSET(DWCDDR21MCTL_DLLCR9, dwcddr21mctl, dllcr[9]); /* 0x48 */
+ OFFSET(DWCDDR21MCTL_RSLR0, dwcddr21mctl, rslr[0]); /* 0x4c */
+ OFFSET(DWCDDR21MCTL_RDGR0, dwcddr21mctl, rdgr[0]); /* 0x5c */
+ OFFSET(DWCDDR21MCTL_DTAR, dwcddr21mctl, dtar); /* 0xa4 */
+ OFFSET(DWCDDR21MCTL_MR, dwcddr21mctl, mr); /* 0x1f0 */
+#endif
+
+ return 0;
+}