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>

1 files changed, 248 insertions, 0 deletions

diff --git a/arch/arm/lib/asm-offsets.c b/arch/arm/lib/asm-offsets.c
new file mode 100644
index 00000000000..b0c26e5d689
--- /dev/null
+++ b/arch/arm/lib/asm-offsets.c
@@ -0,0 +1,248 @@
+/*
+ * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
+ *
+ * This program is used to generate definitions needed by
+ * assembly language modules.
+ *
+ * We use the technique used in the OSF Mach kernel code:
+ * generate asm statements containing #defines,
+ * compile this file to assembler, and then extract the
+ * #defines from the assembly-language output.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/kbuild.h>
+
+#if defined(CONFIG_MB86R0x)
+#include <asm/arch/mb86r0x.h>
+#endif
+#if defined(CONFIG_MX25) || defined(CONFIG_MX27) || defined(CONFIG_MX35) \
+	|| defined(CONFIG_MX51) || defined(CONFIG_MX53)
+#include <asm/arch/imx-regs.h>
+#endif
+
+int main(void)
+{
+	/*
+	 * TODO : Check if each entry in this file is really necessary.
+	 *   - struct mb86r0x_ddr2
+	 *   - struct mb86r0x_memc
+	 *   - struct esdramc_regs
+	 *   - struct max_regs
+	 *   - struct aips_regs
+	 *   - struct aipi_regs
+	 *   - struct clkctl
+	 *   - struct dpll
+	 * 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?
+	 */
+
+#if defined(CONFIG_MB86R0x)
+	/* ddr2 controller */
+	DEFINE(DDR2_DRIC, offsetof(struct mb86r0x_ddr2c, dric));
+	DEFINE(DDR2_DRIC1, offsetof(struct mb86r0x_ddr2c, dric1));
+	DEFINE(DDR2_DRIC2, offsetof(struct mb86r0x_ddr2c, dric2));
+	DEFINE(DDR2_DRCA, offsetof(struct mb86r0x_ddr2c, drca));
+	DEFINE(DDR2_DRCM, offsetof(struct mb86r0x_ddr2c, drcm));
+	DEFINE(DDR2_DRCST1, offsetof(struct mb86r0x_ddr2c, drcst1));
+	DEFINE(DDR2_DRCST2, offsetof(struct mb86r0x_ddr2c, drcst2));
+	DEFINE(DDR2_DRCR, offsetof(struct mb86r0x_ddr2c, drcr));
+	DEFINE(DDR2_DRCF, offsetof(struct mb86r0x_ddr2c, drcf));
+	DEFINE(DDR2_DRASR, offsetof(struct mb86r0x_ddr2c, drasr));
+	DEFINE(DDR2_DRIMS, offsetof(struct mb86r0x_ddr2c, drims));
+	DEFINE(DDR2_DROS, offsetof(struct mb86r0x_ddr2c, dros));
+	DEFINE(DDR2_DRIBSODT1, offsetof(struct mb86r0x_ddr2c, dribsodt1));
+	DEFINE(DDR2_DROABA, offsetof(struct mb86r0x_ddr2c, droaba));
+	DEFINE(DDR2_DROBS, offsetof(struct mb86r0x_ddr2c, drobs));
+
+	/* clock reset generator */
+	DEFINE(CRG_CRPR, offsetof(struct mb86r0x_crg, crpr));
+	DEFINE(CRG_CRHA, offsetof(struct mb86r0x_crg, crha));
+	DEFINE(CRG_CRPA, offsetof(struct mb86r0x_crg, crpa));
+	DEFINE(CRG_CRPB, offsetof(struct mb86r0x_crg, crpb));
+	DEFINE(CRG_CRHB, offsetof(struct mb86r0x_crg, crhb));
+	DEFINE(CRG_CRAM, offsetof(struct mb86r0x_crg, cram));
+
+	/* chip control module */
+	DEFINE(CCNT_CDCRC, offsetof(struct mb86r0x_ccnt, cdcrc));
+
+	/* external bus interface */
+	DEFINE(MEMC_MCFMODE0, offsetof(struct mb86r0x_memc, mcfmode[0]));
+	DEFINE(MEMC_MCFMODE2, offsetof(struct mb86r0x_memc, mcfmode[2]));
+	DEFINE(MEMC_MCFMODE4, offsetof(struct mb86r0x_memc, mcfmode[4]));
+	DEFINE(MEMC_MCFTIM0, offsetof(struct mb86r0x_memc, mcftim[0]));
+	DEFINE(MEMC_MCFTIM2, offsetof(struct mb86r0x_memc, mcftim[2]));
+	DEFINE(MEMC_MCFTIM4, offsetof(struct mb86r0x_memc, mcftim[4]));
+	DEFINE(MEMC_MCFAREA0, offsetof(struct mb86r0x_memc, mcfarea[0]));
+	DEFINE(MEMC_MCFAREA2, offsetof(struct mb86r0x_memc, mcfarea[2]));
+	DEFINE(MEMC_MCFAREA4, offsetof(struct mb86r0x_memc, mcfarea[4]));
+#endif
+
+#if defined(CONFIG_MX25)
+	/* Clock Control Module */
+	DEFINE(CCM_CCTL, offsetof(struct ccm_regs, cctl));
+	DEFINE(CCM_CGCR0, offsetof(struct ccm_regs, cgr0));
+	DEFINE(CCM_CGCR1, offsetof(struct ccm_regs, cgr1));
+	DEFINE(CCM_CGCR2, offsetof(struct ccm_regs, cgr2));
+	DEFINE(CCM_PCDR2, offsetof(struct ccm_regs, pcdr[2]));
+	DEFINE(CCM_MCR, offsetof(struct ccm_regs, mcr));
+
+	/* Enhanced SDRAM Controller */
+	DEFINE(ESDRAMC_ESDCTL0, offsetof(struct esdramc_regs, ctl0));
+	DEFINE(ESDRAMC_ESDCFG0, offsetof(struct esdramc_regs, cfg0));
+	DEFINE(ESDRAMC_ESDMISC, offsetof(struct esdramc_regs, misc));
+
+	/* Multi-Layer AHB Crossbar Switch */
+	DEFINE(MAX_MPR0, offsetof(struct max_regs, mpr0));
+	DEFINE(MAX_SGPCR0, offsetof(struct max_regs, sgpcr0));
+	DEFINE(MAX_MPR1, offsetof(struct max_regs, mpr1));
+	DEFINE(MAX_SGPCR1, offsetof(struct max_regs, sgpcr1));
+	DEFINE(MAX_MPR2, offsetof(struct max_regs, mpr2));
+	DEFINE(MAX_SGPCR2, offsetof(struct max_regs, sgpcr2));
+	DEFINE(MAX_MPR3, offsetof(struct max_regs, mpr3));
+	DEFINE(MAX_SGPCR3, offsetof(struct max_regs, sgpcr3));
+	DEFINE(MAX_MPR4, offsetof(struct max_regs, mpr4));
+	DEFINE(MAX_SGPCR4, offsetof(struct max_regs, sgpcr4));
+	DEFINE(MAX_MGPCR0, offsetof(struct max_regs, mgpcr0));
+	DEFINE(MAX_MGPCR1, offsetof(struct max_regs, mgpcr1));
+	DEFINE(MAX_MGPCR2, offsetof(struct max_regs, mgpcr2));
+	DEFINE(MAX_MGPCR3, offsetof(struct max_regs, mgpcr3));
+	DEFINE(MAX_MGPCR4, offsetof(struct max_regs, mgpcr4));
+
+	/* AHB <-> IP-Bus Interface */
+	DEFINE(AIPS_MPR_0_7, offsetof(struct aips_regs, mpr_0_7));
+	DEFINE(AIPS_MPR_8_15, offsetof(struct aips_regs, mpr_8_15));
+#endif
+
+#if defined(CONFIG_MX27)
+	DEFINE(AIPI1_PSR0, IMX_AIPI1_BASE + offsetof(struct aipi_regs, psr0));
+	DEFINE(AIPI1_PSR1, IMX_AIPI1_BASE + offsetof(struct aipi_regs, psr1));
+	DEFINE(AIPI2_PSR0, IMX_AIPI2_BASE + offsetof(struct aipi_regs, psr0));
+	DEFINE(AIPI2_PSR1, IMX_AIPI2_BASE + offsetof(struct aipi_regs, psr1));
+
+	DEFINE(CSCR, IMX_PLL_BASE + offsetof(struct pll_regs, cscr));
+	DEFINE(MPCTL0, IMX_PLL_BASE + offsetof(struct pll_regs, mpctl0));
+	DEFINE(SPCTL0, IMX_PLL_BASE + offsetof(struct pll_regs, spctl0));
+	DEFINE(PCDR0, IMX_PLL_BASE + offsetof(struct pll_regs, pcdr0));
+	DEFINE(PCDR1, IMX_PLL_BASE + offsetof(struct pll_regs, pcdr1));
+	DEFINE(PCCR0, IMX_PLL_BASE + offsetof(struct pll_regs, pccr0));
+	DEFINE(PCCR1, IMX_PLL_BASE + offsetof(struct pll_regs, pccr1));
+
+	DEFINE(ESDCTL0_ROF, offsetof(struct esdramc_regs, esdctl0));
+	DEFINE(ESDCFG0_ROF, offsetof(struct esdramc_regs, esdcfg0));
+	DEFINE(ESDCTL1_ROF, offsetof(struct esdramc_regs, esdctl1));
+	DEFINE(ESDCFG1_ROF, offsetof(struct esdramc_regs, esdcfg1));
+	DEFINE(ESDMISC_ROF, offsetof(struct esdramc_regs, esdmisc));
+
+	DEFINE(GPCR, IMX_SYSTEM_CTL_BASE +
+		offsetof(struct system_control_regs, gpcr));
+	DEFINE(FMCR, IMX_SYSTEM_CTL_BASE +
+		offsetof(struct system_control_regs, fmcr));
+#endif
+
+#if defined(CONFIG_MX35)
+	/* Round up to make sure size gives nice stack alignment */
+	DEFINE(CLKCTL_CCMR, offsetof(struct ccm_regs, ccmr));
+	DEFINE(CLKCTL_PDR0, offsetof(struct ccm_regs, pdr0));
+	DEFINE(CLKCTL_PDR1, offsetof(struct ccm_regs, pdr1));
+	DEFINE(CLKCTL_PDR2, offsetof(struct ccm_regs, pdr2));
+	DEFINE(CLKCTL_PDR3, offsetof(struct ccm_regs, pdr3));
+	DEFINE(CLKCTL_PDR4, offsetof(struct ccm_regs, pdr4));
+	DEFINE(CLKCTL_RCSR, offsetof(struct ccm_regs, rcsr));
+	DEFINE(CLKCTL_MPCTL, offsetof(struct ccm_regs, mpctl));
+	DEFINE(CLKCTL_PPCTL, offsetof(struct ccm_regs, ppctl));
+	DEFINE(CLKCTL_ACMR, offsetof(struct ccm_regs, acmr));
+	DEFINE(CLKCTL_COSR, offsetof(struct ccm_regs, cosr));
+	DEFINE(CLKCTL_CGR0, offsetof(struct ccm_regs, cgr0));
+	DEFINE(CLKCTL_CGR1, offsetof(struct ccm_regs, cgr1));
+	DEFINE(CLKCTL_CGR2, offsetof(struct ccm_regs, cgr2));
+	DEFINE(CLKCTL_CGR3, offsetof(struct ccm_regs, cgr3));
+
+	/* Multi-Layer AHB Crossbar Switch */
+	DEFINE(MAX_MPR0, offsetof(struct max_regs, mpr0));
+	DEFINE(MAX_SGPCR0, offsetof(struct max_regs, sgpcr0));
+	DEFINE(MAX_MPR1, offsetof(struct max_regs, mpr1));
+	DEFINE(MAX_SGPCR1, offsetof(struct max_regs, sgpcr1));
+	DEFINE(MAX_MPR2, offsetof(struct max_regs, mpr2));
+	DEFINE(MAX_SGPCR2, offsetof(struct max_regs, sgpcr2));
+	DEFINE(MAX_MPR3, offsetof(struct max_regs, mpr3));
+	DEFINE(MAX_SGPCR3, offsetof(struct max_regs, sgpcr3));
+	DEFINE(MAX_MPR4, offsetof(struct max_regs, mpr4));
+	DEFINE(MAX_SGPCR4, offsetof(struct max_regs, sgpcr4));
+	DEFINE(MAX_MGPCR0, offsetof(struct max_regs, mgpcr0));
+	DEFINE(MAX_MGPCR1, offsetof(struct max_regs, mgpcr1));
+	DEFINE(MAX_MGPCR2, offsetof(struct max_regs, mgpcr2));
+	DEFINE(MAX_MGPCR3, offsetof(struct max_regs, mgpcr3));
+	DEFINE(MAX_MGPCR4, offsetof(struct max_regs, mgpcr4));
+	DEFINE(MAX_MGPCR5, offsetof(struct max_regs, mgpcr5));
+
+	/* AHB <-> IP-Bus Interface */
+	DEFINE(AIPS_MPR_0_7, offsetof(struct aips_regs, mpr_0_7));
+	DEFINE(AIPS_MPR_8_15, offsetof(struct aips_regs, mpr_8_15));
+	DEFINE(AIPS_PACR_0_7, offsetof(struct aips_regs, pacr_0_7));
+	DEFINE(AIPS_PACR_8_15, offsetof(struct aips_regs, pacr_8_15));
+	DEFINE(AIPS_PACR_16_23, offsetof(struct aips_regs, pacr_16_23));
+	DEFINE(AIPS_PACR_24_31, offsetof(struct aips_regs, pacr_24_31));
+	DEFINE(AIPS_OPACR_0_7, offsetof(struct aips_regs, opacr_0_7));
+	DEFINE(AIPS_OPACR_8_15, offsetof(struct aips_regs, opacr_8_15));
+	DEFINE(AIPS_OPACR_16_23, offsetof(struct aips_regs, opacr_16_23));
+	DEFINE(AIPS_OPACR_24_31, offsetof(struct aips_regs, opacr_24_31));
+	DEFINE(AIPS_OPACR_32_39, offsetof(struct aips_regs, opacr_32_39));
+#endif
+
+#if defined(CONFIG_MX51) || defined(CONFIG_MX53)
+	/* Round up to make sure size gives nice stack alignment */
+	DEFINE(CLKCTL_CCMR, offsetof(struct clkctl, ccr));
+	DEFINE(CLKCTL_CCDR, offsetof(struct clkctl, ccdr));
+	DEFINE(CLKCTL_CSR, offsetof(struct clkctl, csr));
+	DEFINE(CLKCTL_CCSR, offsetof(struct clkctl, ccsr));
+	DEFINE(CLKCTL_CACRR, offsetof(struct clkctl, cacrr));
+	DEFINE(CLKCTL_CBCDR, offsetof(struct clkctl, cbcdr));
+	DEFINE(CLKCTL_CBCMR, offsetof(struct clkctl, cbcmr));
+	DEFINE(CLKCTL_CSCMR1, offsetof(struct clkctl, cscmr1));
+	DEFINE(CLKCTL_CSCMR2, offsetof(struct clkctl, cscmr2));
+	DEFINE(CLKCTL_CSCDR1, offsetof(struct clkctl, cscdr1));
+	DEFINE(CLKCTL_CS1CDR, offsetof(struct clkctl, cs1cdr));
+	DEFINE(CLKCTL_CS2CDR, offsetof(struct clkctl, cs2cdr));
+	DEFINE(CLKCTL_CDCDR, offsetof(struct clkctl, cdcdr));
+	DEFINE(CLKCTL_CHSCCDR, offsetof(struct clkctl, chsccdr));
+	DEFINE(CLKCTL_CSCDR2, offsetof(struct clkctl, cscdr2));
+	DEFINE(CLKCTL_CSCDR3, offsetof(struct clkctl, cscdr3));
+	DEFINE(CLKCTL_CSCDR4, offsetof(struct clkctl, cscdr4));
+	DEFINE(CLKCTL_CWDR, offsetof(struct clkctl, cwdr));
+	DEFINE(CLKCTL_CDHIPR, offsetof(struct clkctl, cdhipr));
+	DEFINE(CLKCTL_CDCR, offsetof(struct clkctl, cdcr));
+	DEFINE(CLKCTL_CTOR, offsetof(struct clkctl, ctor));
+	DEFINE(CLKCTL_CLPCR, offsetof(struct clkctl, clpcr));
+	DEFINE(CLKCTL_CISR, offsetof(struct clkctl, cisr));
+	DEFINE(CLKCTL_CIMR, offsetof(struct clkctl, cimr));
+	DEFINE(CLKCTL_CCOSR, offsetof(struct clkctl, ccosr));
+	DEFINE(CLKCTL_CGPR, offsetof(struct clkctl, cgpr));
+	DEFINE(CLKCTL_CCGR0, offsetof(struct clkctl, ccgr0));
+	DEFINE(CLKCTL_CCGR1, offsetof(struct clkctl, ccgr1));
+	DEFINE(CLKCTL_CCGR2, offsetof(struct clkctl, ccgr2));
+	DEFINE(CLKCTL_CCGR3, offsetof(struct clkctl, ccgr3));
+	DEFINE(CLKCTL_CCGR4, offsetof(struct clkctl, ccgr4));
+	DEFINE(CLKCTL_CCGR5, offsetof(struct clkctl, ccgr5));
+	DEFINE(CLKCTL_CCGR6, offsetof(struct clkctl, ccgr6));
+	DEFINE(CLKCTL_CMEOR, offsetof(struct clkctl, cmeor));
+#if defined(CONFIG_MX53)
+	DEFINE(CLKCTL_CCGR7, offsetof(struct clkctl, ccgr7));
+#endif
+
+	/* DPLL */
+	DEFINE(PLL_DP_CTL, offsetof(struct dpll, dp_ctl));
+	DEFINE(PLL_DP_CONFIG, offsetof(struct dpll, dp_config));
+	DEFINE(PLL_DP_OP, offsetof(struct dpll, dp_op));
+	DEFINE(PLL_DP_MFD, offsetof(struct dpll, dp_mfd));
+	DEFINE(PLL_DP_MFN, offsetof(struct dpll, dp_mfn));
+	DEFINE(PLL_DP_HFS_OP, offsetof(struct dpll, dp_hfs_op));
+	DEFINE(PLL_DP_HFS_MFD, offsetof(struct dpll, dp_hfs_mfd));
+	DEFINE(PLL_DP_HFS_MFN, offsetof(struct dpll, dp_hfs_mfn));
+#endif
+
+	return 0;
+}