From 8d20836615eb7fa6330935a5f63e5cdd05cac7e5 Mon Sep 17 00:00:00 2001 From: Albert ARIBAUD Date: Sat, 10 Aug 2013 19:03:59 +0200 Subject: [PATCH] arm: omap3: fix SRAM copy and execution sequence Fix size calculation in copy of go_to_speed into SRAM. Use SRAM_CLK_CODE in call to SRAM-based go_to_speed. Signed-off-by: Albert ARIBAUD --- arch/arm/cpu/armv7/omap3/clock.c | 6 ++---- arch/arm/cpu/armv7/omap3/lowlevel_init.S | 8 +++----- arch/arm/include/asm/arch-omap3/clock.h | 2 -- 3 files changed, 5 insertions(+), 11 deletions(-) diff --git a/arch/arm/cpu/armv7/omap3/clock.c b/arch/arm/cpu/armv7/omap3/clock.c index e903ed9ac4..9f989ff860 100644 --- a/arch/arm/cpu/armv7/omap3/clock.c +++ b/arch/arm/cpu/armv7/omap3/clock.c @@ -183,8 +183,7 @@ static void dpll3_init_34xx(u32 sil_index, u32 clk_index) * if running from flash, jump to small relocated code * area in SRAM. */ - f_lock_pll = (void *) ((u32) &_end_vect - (u32) &_start + - SRAM_VECT_CODE); + f_lock_pll = (void *) (SRAM_CLK_CODE); p0 = readl(&prcm_base->clken_pll); sr32(&p0, 0, 3, PLL_FAST_RELOCK_BYPASS); @@ -401,8 +400,7 @@ static void dpll3_init_36xx(u32 sil_index, u32 clk_index) * if running from flash, jump to small relocated code * area in SRAM. */ - f_lock_pll = (void *) ((u32) &_end_vect - (u32) &_start + - SRAM_VECT_CODE); + f_lock_pll = (void *) (SRAM_CLK_CODE); p0 = readl(&prcm_base->clken_pll); sr32(&p0, 0, 3, PLL_FAST_RELOCK_BYPASS); diff --git a/arch/arm/cpu/armv7/omap3/lowlevel_init.S b/arch/arm/cpu/armv7/omap3/lowlevel_init.S index 98c3c03a0e..6f7261b7b8 100644 --- a/arch/arm/cpu/armv7/omap3/lowlevel_init.S +++ b/arch/arm/cpu/armv7/omap3/lowlevel_init.S @@ -69,15 +69,13 @@ ENDPROC(do_omap3_emu_romcode_call) *************************************************************************/ ENTRY(cpy_clk_code) /* Copy DPLL code into SRAM */ - adr r0, go_to_speed /* get addr of clock setting code */ - mov r2, #384 /* r2 size to copy (div by 32 bytes) */ - mov r1, r1 /* r1 <- dest address (passed in) */ - add r2, r2, r0 /* r2 <- source end address */ + adr r0, go_to_speed /* copy from start of go_to_speed... */ + adr r2, lowlevel_init /* ... up to start of low_level_init */ next2: ldmia r0!, {r3 - r10} /* copy from source address [r0] */ stmia r1!, {r3 - r10} /* copy to target address [r1] */ cmp r0, r2 /* until source end address [r2] */ - bne next2 + blo next2 mov pc, lr /* back to caller */ ENDPROC(cpy_clk_code) diff --git a/arch/arm/include/asm/arch-omap3/clock.h b/arch/arm/include/asm/arch-omap3/clock.h index 514839c778..be669c156f 100644 --- a/arch/arm/include/asm/arch-omap3/clock.h +++ b/arch/arm/include/asm/arch-omap3/clock.h @@ -63,6 +63,4 @@ extern dpll_param *get_36x_core_dpll_param(void); extern dpll_param *get_36x_per_dpll_param(void); extern dpll_param *get_36x_per2_dpll_param(void); -extern void *_end_vect, *_start; - #endif -- 2.30.2