diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx5')
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/asm-offsets.c | 76 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/lowlevel_init.S | 6 |
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 */ |