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-rw-r--r--firmware/boot.lds32
-rw-r--r--firmware/crt0.S5
-rw-r--r--firmware/kernel.c19
3 files changed, 55 insertions, 1 deletions
diff --git a/firmware/boot.lds b/firmware/boot.lds
index 78dd40bf92..56383d7723 100644
--- a/firmware/boot.lds
+++ b/firmware/boot.lds
@@ -69,7 +69,7 @@ INPUT(crt0.o)
69#define FLASHSIZE 256K - ROM_START 69#define FLASHSIZE 256K - ROM_START
70#endif 70#endif
71 71
72#ifndef CPU_PP 72#if !defined(CPU_PP) && (CONFIG_CPU!=S3C2440)
73MEMORY 73MEMORY
74{ 74{
75 DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE 75 DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
@@ -117,6 +117,36 @@ SECTIONS
117 _end = .; 117 _end = .;
118 } 118 }
119} 119}
120#elif (CONFIG_CPU==S3C2440)
121{
122 . = DRAMORIG + 0x8000;
123 .text : {
124 *(.init.text)
125 *(.text)
126 }
127 .data : {
128 *(.icode)
129 *(.irodata)
130 *(.idata)
131 *(.data)
132 _dataend = . ;
133 }
134 .stack :
135 {
136 *(.stack)
137 _stackbegin = .;
138 stackbegin = .;
139 . += 0x2000;
140 _stackend = .;
141 stackend = .;
142 }
143 .bss : {
144 _edata = .;
145 *(.bss);
146 *(.ibss);
147 _end = .;
148 }
149}
120#else 150#else
121{ 151{
122 .vectors : 152 .vectors :
diff --git a/firmware/crt0.S b/firmware/crt0.S
index 1c52658c7c..96e08be9f1 100644
--- a/firmware/crt0.S
+++ b/firmware/crt0.S
@@ -303,6 +303,11 @@ boot_table:
303 .space 400 303 .space 400
304#endif /* PP specific */ 304#endif /* PP specific */
305/* Code for ARM bootloader targets other than iPod go here */ 305/* Code for ARM bootloader targets other than iPod go here */
306
307#if CONFIG_CPU == S3C2440
308 bl main
309#endif
310
306#else /* BOOTLOADER */ 311#else /* BOOTLOADER */
307 312
308 /* Set up stack for IRQ mode */ 313 /* Set up stack for IRQ mode */
diff --git a/firmware/kernel.c b/firmware/kernel.c
index 7c5c74c662..1c8bf9dd81 100644
--- a/firmware/kernel.c
+++ b/firmware/kernel.c
@@ -56,6 +56,21 @@ void kernel_init(void)
56 56
57void sleep(int ticks) 57void sleep(int ticks)
58{ 58{
59#if CONFIG_CPU == S3C2440 && defined(BOOTLOADER)
60 int counter;
61 TCON &= ~(1 << 20); // stop timer 4
62 // TODO: this constant depends on dividers settings inherited from
63 // firmware. Set them explicitly somwhere.
64 TCNTB4 = 12193 * ticks / HZ;
65 TCON |= 1 << 21; // set manual bit
66 TCON &= ~(1 << 21); // reset manual bit
67 TCON &= ~(1 << 22); //autoreload Off
68 TCON |= (1 << 20); // start timer 4
69 do {
70 counter = TCNTO4;
71 } while(counter > 0);
72
73#else
59 /* Always sleep at least 1 tick */ 74 /* Always sleep at least 1 tick */
60 int timeout = current_tick + ticks + 1; 75 int timeout = current_tick + ticks + 1;
61 76
@@ -63,12 +78,16 @@ void sleep(int ticks)
63 sleep_thread(); 78 sleep_thread();
64 } 79 }
65 wake_up_thread(); 80 wake_up_thread();
81#endif
66} 82}
67 83
68void yield(void) 84void yield(void)
69{ 85{
86#if CONFIG_CPU == S3C2440 && defined(BOOTLOADER)
87#else
70 switch_thread(); 88 switch_thread();
71 wake_up_thread(); 89 wake_up_thread();
90#endif
72} 91}
73 92
74/**************************************************************************** 93/****************************************************************************