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-rw-r--r--arch/arm/cpu/armv7/mx5/Makefile2
-rw-r--r--arch/arm/cpu/armv7/mx5/asm-offsets.c76
-rw-r--r--arch/arm/cpu/armv7/mx5/lowlevel_init.S6
3 files changed, 83 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/mx5/Makefile b/arch/arm/cpu/armv7/mx5/Makefile
index e8be9c9fab..6e13cc3e84 100644
--- a/arch/arm/cpu/armv7/mx5/Makefile
+++ b/arch/arm/cpu/armv7/mx5/Makefile
@@ -45,4 +45,6 @@ include $(SRCTREE)/rules.mk
sinclude $(obj).depend
+lowlevel_init.o : $(TOPDIR)/include/asm/arch/asm-offsets.h
+
#########################################################################
diff --git a/arch/arm/cpu/armv7/mx5/asm-offsets.c b/arch/arm/cpu/armv7/mx5/asm-offsets.c
new file mode 100644
index 0000000000..f97249899d
--- /dev/null
+++ b/arch/arm/cpu/armv7/mx5/asm-offsets.c
@@ -0,0 +1,76 @@
+/*
+ * 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.
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <asm/arch/imx-regs.h>
+
+#include <linux/kbuild.h>
+
+int main(void)
+{
+
+ /* 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));
+
+ return 0;
+}
diff --git a/arch/arm/cpu/armv7/mx5/lowlevel_init.S b/arch/arm/cpu/armv7/mx5/lowlevel_init.S
index 96ebfe2345..94de9f1d61 100644
--- a/arch/arm/cpu/armv7/mx5/lowlevel_init.S
+++ b/arch/arm/cpu/armv7/mx5/lowlevel_init.S
@@ -39,10 +39,14 @@
orr r0, r0, #(1 << 23) /* disable write allocate combine */
orr r0, r0, #(1 << 22) /* disable write allocate */
- cmp r3, #0x10 /* r3 contains the silicon rev */
+#if defined(CONFIG_MX51)
+ ldr r1, =0x0
+ ldr r3, [r1, #ROM_SI_REV]
+ cmp r3, #0x10
/* disable write combine for TO 2 and lower revs */
orrls r0, r0, #(1 << 25)
+#endif
mcr 15, 1, r0, c9, c0, 2
.endm /* init_l2cc */