Configure Gigabeat S with EABI compiler by default. Implement the INIT section that this enables (due to selective need for long calls). Remove pcm_postinit from INIT section since it's asynchronous. Disable strict aliasing on SPC codec for now just to shut it up.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26779 a1c6a512-1295-4272-9138-f99709370657

13 files changed, 45 insertions, 39 deletions

diff --git a/firmware/target/arm/imx31/app.lds b/firmware/target/arm/imx31/app.lds
index 7043a55526..24b9f27d5d 100644
--- a/firmware/target/arm/imx31/app.lds
+++ b/firmware/target/arm/imx31/app.lds
@@ -32,9 +32,14 @@ STARTUP(target/arm/imx31/crt0.o)
 /* Where the codec buffer ends, and the plugin buffer starts */
 #define ENDADDR (ENDAUDIOADDR + CODECSIZE)
 
+/* INIT section is the codec buffer */
+#define INITSIZE  CODECSIZE
+#define INITSTART ENDAUDIOADDR
+
 MEMORY
 {
     DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
+    INIT : ORIGIN = INITSTART, LENGTH = INITSIZE
     QHARRAY : ORIGIN = QHARRAY_PHYS_ADDR, LENGTH = QHARRAY_SIZE
 }
 
@@ -97,25 +102,35 @@ SECTIONS
     .vectors 0x0 :
     {
         _vectorsstart = .;
-        *(.vectors);
+        *(.vectors)
         _vectorsend = .;
     } AT> DRAM
 
     _vectorscopy = LOADADDR(.vectors);
     
+    .init :
+    {
+        . = ALIGN(4);
+        _initstart = .;
+        *(.init)
+        *(.sdmacode)
+        _initend = .;
+    } > INIT AT> DRAM
+
+    _initcopy = LOADADDR(.init);
+
     .stack (NOLOAD) :
     {
-       *(.stack)
-       stackbegin = .;
-       . += 0x2000;
-       stackend = .;
+        . = ALIGN(4);
+        *(.stack)
+        stackbegin = .;
+        . += 0x2000;
+        stackend = .;
     } > DRAM
     
-    _sdmacodecopy = stackbegin;
-
     .bss (NOLOAD) :
     {
-       _edata = .;
+        _edata = .;
         *(.bss*)
         *(.ibss)
         *(COMMON)
@@ -158,13 +173,6 @@ SECTIONS
         pluginbuf = .;
     }
     
-    .sdma _pluginbuf : AT( _sdmacodecopy )
-    {
-    	_sdmacodestart = .;
-    	*(.sdmacode);
-    	_sdmacodeend = .;
-    }
-    
     .qharray (NOLOAD) :
     {
 	_qharray = .;
diff --git a/firmware/target/arm/imx31/avic-imx31.c b/firmware/target/arm/imx31/avic-imx31.c
index 5bf7275e07..b2b62755e1 100644
--- a/firmware/target/arm/imx31/avic-imx31.c
+++ b/firmware/target/arm/imx31/avic-imx31.c
@@ -116,7 +116,7 @@ void __attribute__((naked)) fiq_handler(void)
     );
 }
 
-void avic_init(void)
+void INIT_ATTR avic_init(void)
 {
     int i;
 
diff --git a/firmware/target/arm/imx31/crt0.S b/firmware/target/arm/imx31/crt0.S
index d241fcb8ae..53e18c17df 100644
--- a/firmware/target/arm/imx31/crt0.S
+++ b/firmware/target/arm/imx31/crt0.S
@@ -231,20 +231,18 @@ remap_end:
     bhi     1b
 #endif /* BOOTLOADER */
 
-#ifndef BOOTLOADER
-    /* Copy discardable SDMA code - loaded in the stack section
-     * and so must be done first. Destination is the plugin buffer
-     * which is safe when SDMA init takes place just after kernel
-     * init. */
-    ldr     r4, =_sdmacodecopy
-    ldr     r3, =_sdmacodeend
-    ldr     r2, =_sdmacodestart
+#ifdef HAVE_INIT_ATTR
+    /* copy init data to codec buffer */
+    /* must be done before bss is zeroed */
+    ldr     r4, =_initcopy
+    ldr     r3, =_initend
+    ldr     r2, =_initstart
 1:
     cmp     r3, r2
     ldrhi   r5, [r4], #4
     strhi   r5, [r2], #4
     bhi     1b
-#endif /* BOOTLOADER */
+#endif /* HAVE_INIT_ATTR */
 
     /* Initialise bss and ncbss sections to zero */
     ldr     r2, =_edata
diff --git a/firmware/target/arm/imx31/dvfs_dptc-imx31.c b/firmware/target/arm/imx31/dvfs_dptc-imx31.c
index 129e47d55e..6bacc20c10 100644
--- a/firmware/target/arm/imx31/dvfs_dptc-imx31.c
+++ b/firmware/target/arm/imx31/dvfs_dptc-imx31.c
@@ -248,7 +248,7 @@ static __attribute__((naked, interrupt("IRQ"))) void CCM_DVFS_HANDLER(void)
 
 
 /* Initialize the DVFS hardware */
-static void dvfs_init(void)
+static void INIT_ATTR dvfs_init(void)
 {
     if (CCM_PMCR0 & CCM_PMCR0_DVFEN)
     {
@@ -514,7 +514,7 @@ static __attribute__((interrupt("IRQ"))) void CCM_CLK_HANDLER(void)
 
 
 /* Initialize the DPTC hardware */
-static void dptc_init(void)
+static void INIT_ATTR dptc_init(void)
 {
     /* Force DPTC off if running for some reason. */
     imx31_regmod32(&CCM_PMCR0, CCM_PMCR0_PTVAIM,
@@ -590,7 +590,7 @@ static void dptc_stop(void)
 /** Main module interface **/
 
 /* Initialize DVFS and DPTC */
-void dvfs_dptc_init(void)
+void INIT_ATTR dvfs_dptc_init(void)
 {
     dptc_init();
     dvfs_init();
diff --git a/firmware/target/arm/imx31/gigabeat-s/headphone-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/headphone-gigabeat-s.c
index 14bb534138..0f8cb67a9d 100644
--- a/firmware/target/arm/imx31/gigabeat-s/headphone-gigabeat-s.c
+++ b/firmware/target/arm/imx31/gigabeat-s/headphone-gigabeat-s.c
@@ -184,7 +184,7 @@ bool headphones_inserted(void)
     return headphones_detect;
 }
 
-void headphone_init(void)
+void INIT_ATTR headphone_init(void)
 {
     /* A thread is required to monitor the remote ADC and jack state. */
     wakeup_init(&headphone_wakeup);
diff --git a/firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c
index bece976ab9..79f3eccc6b 100644
--- a/firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c
+++ b/firmware/target/arm/imx31/gigabeat-s/kernel-gigabeat-s.c
@@ -37,7 +37,7 @@ static __attribute__((interrupt("IRQ"))) void EPIT1_HANDLER(void)
     call_tick_tasks();
 }
 
-void tick_start(unsigned int interval_in_ms)
+void INIT_ATTR tick_start(unsigned int interval_in_ms)
 {
     ccm_module_clock_gating(CG_EPIT1, CGM_ON_RUN_WAIT); /* EPIT1 module
                                                clock ON - before writing
@@ -65,7 +65,7 @@ void tick_start(unsigned int interval_in_ms)
     EPITCR1 |= EPITCR_EN;        /* Enable the counter */
 }
 
-void kernel_device_init(void)
+void INIT_ATTR kernel_device_init(void)
 {
     sdma_init();
     spi_init();
diff --git a/firmware/target/arm/imx31/gigabeat-s/lcd-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/lcd-gigabeat-s.c
index d567de8dbb..cadd0e7ae8 100644
--- a/firmware/target/arm/imx31/gigabeat-s/lcd-gigabeat-s.c
+++ b/firmware/target/arm/imx31/gigabeat-s/lcd-gigabeat-s.c
@@ -147,7 +147,7 @@ static void lcd_set_power(bool powered)
 }
 
 /* LCD init */
-void lcd_init_device(void)
+void INIT_ATTR lcd_init_device(void)
 {
     /* Move the framebuffer */
 #ifdef BOOTLOADER
diff --git a/firmware/target/arm/imx31/gigabeat-s/powermgmt-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/powermgmt-gigabeat-s.c
index dc00b1ede6..06ea280067 100644
--- a/firmware/target/arm/imx31/gigabeat-s/powermgmt-gigabeat-s.c
+++ b/firmware/target/arm/imx31/gigabeat-s/powermgmt-gigabeat-s.c
@@ -606,7 +606,7 @@ static bool charging_ok(void)
     return ok;
 }
 
-void powermgmt_init_target(void)
+void INIT_ATTR powermgmt_init_target(void)
 {
     last_inputs = power_thread_inputs;
 
diff --git a/firmware/target/arm/imx31/gigabeat-s/system-gigabeat-s.c b/firmware/target/arm/imx31/gigabeat-s/system-gigabeat-s.c
index 7c0d30c783..80b6f22397 100644
--- a/firmware/target/arm/imx31/gigabeat-s/system-gigabeat-s.c
+++ b/firmware/target/arm/imx31/gigabeat-s/system-gigabeat-s.c
@@ -48,7 +48,7 @@ unsigned int iim_prod_rev(void)
     return product_rev;
 }
 
-static void iim_init(void)
+static void INIT_ATTR iim_init(void)
 {
     /* Initialize the IC revision info (required by SDMA) */
     ccm_module_clock_gating(CG_IIM, CGM_ON_RUN_WAIT);
@@ -136,7 +136,7 @@ void system_exception_wait(void)
     system_halt();
 }
 
-void system_init(void)
+void INIT_ATTR system_init(void)
 {
     static const int disable_clocks[] =
     {
diff --git a/firmware/target/arm/imx31/gpio-imx31.c b/firmware/target/arm/imx31/gpio-imx31.c
index 42d0a42188..e368d1ae07 100644
--- a/firmware/target/arm/imx31/gpio-imx31.c
+++ b/firmware/target/arm/imx31/gpio-imx31.c
@@ -150,7 +150,7 @@ static __attribute__((interrupt("IRQ"))) void GPIO3_HANDLER(void)
 }
 #endif
 
-void gpio_init(void)
+void INIT_ATTR gpio_init(void)
 {
     /* Mask-out GPIO interrupts - enable what's wanted later */
     int i;
diff --git a/firmware/target/arm/imx31/mc13783-imx31.c b/firmware/target/arm/imx31/mc13783-imx31.c
index 9d8f6190a3..6e982af3d3 100644
--- a/firmware/target/arm/imx31/mc13783-imx31.c
+++ b/firmware/target/arm/imx31/mc13783-imx31.c
@@ -143,7 +143,7 @@ void mc13783_event(void)
     wakeup_signal(&mc13783_svc_wake);
 }
 
-void mc13783_init(void)
+void INIT_ATTR mc13783_init(void)
 {
     /* Serial interface must have been initialized first! */
     wakeup_init(&mc13783_svc_wake);
diff --git a/firmware/target/arm/imx31/sdma-imx31.c b/firmware/target/arm/imx31/sdma-imx31.c
index a877d5824b..4928108f67 100644
--- a/firmware/target/arm/imx31/sdma-imx31.c
+++ b/firmware/target/arm/imx31/sdma-imx31.c
@@ -500,7 +500,7 @@ static bool setup_channel(struct channel_control_block *ccb_p)
 }
 
 /** Public routines **/
-void sdma_init(void)
+void INIT_ATTR sdma_init(void)
 {
     int i;
     unsigned long acr;
diff --git a/firmware/target/arm/imx31/spi-imx31.c b/firmware/target/arm/imx31/spi-imx31.c
index e0187e4388..7fcf94ce90 100644
--- a/firmware/target/arm/imx31/spi-imx31.c
+++ b/firmware/target/arm/imx31/spi-imx31.c
@@ -331,7 +331,7 @@ static __attribute__((interrupt("IRQ"))) void CSPI3_HANDLER(void)
 #endif
 
 /* Initialize the SPI driver */
-void spi_init(void)
+void INIT_ATTR spi_init(void)
 {
     unsigned i;
     for (i = 0; i < SPI_NUM_CSPI; i++)