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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 19:28:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 19:28:15 -0700
commit0df0914d414a504b975f3cc66ace0c16ef55b7f3 (patch)
treec97ffa357943a8b226cdec1b9632c4cede813205 /arch/arm/mach-omap2/sram34xx.S
parent6899608533410557e6698cb9d4ff6df553916e98 (diff)
parent05f689400ea5fa3d71af82f910c8b140f87ad1f3 (diff)
Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (258 commits) omap: zoom: host should not pull up wl1271's irq line arm: plat-omap: iommu: fix request_mem_region() error path OMAP2+: Common CPU DIE ID reading code reads wrong registers for OMAP4430 omap4: mux: Remove duplicate mux modes omap: iovmm: don't check 'da' to set IOVMF_DA_FIXED flag omap: iovmm: disallow mapping NULL address when IOVMF_DA_ANON is set omap2+: mux: Fix compile when CONFIG_OMAP_MUX is not selected omap4: board-omap4panda: Initialise the serial pads omap3: board-3430sdp: Initialise the serial pads omap4: board-4430sdp: Initialise the serial pads omap2+: mux: Add macro for configuring static with omap_hwmod_mux_init omap2+: mux: Remove the use of IDLE flag omap2+: Add separate list for dynamic pads to mux perf: add OMAP support for the new power events OMAP4: Add IVA OPP enteries. OMAP4: Update Voltage Rail Values for MPU, IVA and CORE OMAP4: Enable 800 MHz and 1 GHz MPU-OPP OMAP3+: OPP: Replace voltage values with Macros OMAP3: wdtimer: Fix CORE idle transition Watchdog: omap_wdt: add fine grain runtime-pm ... Fix up various conflicts in - arch/arm/mach-omap2/board-omap3evm.c - arch/arm/mach-omap2/clock3xxx_data.c - arch/arm/mach-omap2/usb-musb.c - arch/arm/plat-omap/include/plat/usb.h - drivers/usb/musb/musb_core.h
Diffstat (limited to 'arch/arm/mach-omap2/sram34xx.S')
-rw-r--r--arch/arm/mach-omap2/sram34xx.S36
1 files changed, 28 insertions, 8 deletions
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S
index 25011ca2145..6f5849aaa7c 100644
--- a/arch/arm/mach-omap2/sram34xx.S
+++ b/arch/arm/mach-omap2/sram34xx.S
@@ -34,6 +34,12 @@
#include "sdrc.h"
#include "cm2xxx_3xxx.h"
+/*
+ * This file needs be built unconditionally as ARM to interoperate correctly
+ * with non-Thumb-2-capable firmware.
+ */
+ .arm
+
.text
/* r1 parameters */
@@ -117,24 +123,36 @@ ENTRY(omap3_sram_configure_core_dpll)
@ pull the extra args off the stack
@ and store them in SRAM
+
+/*
+ * PC-relative stores are deprecated in ARMv7 and lead to undefined behaviour
+ * in Thumb-2: use a r7 as a base instead.
+ * Be careful not to clobber r7 when maintaing this file.
+ */
+ THUMB( adr r7, omap3_sram_configure_core_dpll )
+ .macro strtext Rt:req, label:req
+ ARM( str \Rt, \label )
+ THUMB( str \Rt, [r7, \label - omap3_sram_configure_core_dpll] )
+ .endm
+
ldr r4, [sp, #52]
- str r4, omap_sdrc_rfr_ctrl_0_val
+ strtext r4, omap_sdrc_rfr_ctrl_0_val
ldr r4, [sp, #56]
- str r4, omap_sdrc_actim_ctrl_a_0_val
+ strtext r4, omap_sdrc_actim_ctrl_a_0_val
ldr r4, [sp, #60]
- str r4, omap_sdrc_actim_ctrl_b_0_val
+ strtext r4, omap_sdrc_actim_ctrl_b_0_val
ldr r4, [sp, #64]
- str r4, omap_sdrc_mr_0_val
+ strtext r4, omap_sdrc_mr_0_val
ldr r4, [sp, #68]
- str r4, omap_sdrc_rfr_ctrl_1_val
+ strtext r4, omap_sdrc_rfr_ctrl_1_val
cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0,
beq skip_cs1_params @ do not use cs1 params
ldr r4, [sp, #72]
- str r4, omap_sdrc_actim_ctrl_a_1_val
+ strtext r4, omap_sdrc_actim_ctrl_a_1_val
ldr r4, [sp, #76]
- str r4, omap_sdrc_actim_ctrl_b_1_val
+ strtext r4, omap_sdrc_actim_ctrl_b_1_val
ldr r4, [sp, #80]
- str r4, omap_sdrc_mr_1_val
+ strtext r4, omap_sdrc_mr_1_val
skip_cs1_params:
mrc p15, 0, r8, c1, c0, 0 @ read ctrl register
bic r10, r8, #0x800 @ clear Z-bit, disable branch prediction
@@ -272,6 +290,7 @@ skip_cs1_prog:
ldr r12, [r11] @ posted-write barrier for SDRC
bx lr
+ .align
omap3_sdrc_power:
.word OMAP34XX_SDRC_REGADDR(SDRC_POWER)
omap3_cm_clksel1_pll:
@@ -320,6 +339,7 @@ omap3_sdrc_dlla_ctrl:
.word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL)
core_m2_mask_val:
.word 0x07FFFFFF
+ENDPROC(omap3_sram_configure_core_dpll)
ENTRY(omap3_sram_configure_core_dpll_sz)
.word . - omap3_sram_configure_core_dpll