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qi-add-steppingstone-section-for-putc.patch
We need putc even when we are operating entirely from steppingstone. Arrange that the board-specific putc code is in a section that goes into steppingstone, and adapt the utils.c putc() so that it no longer needs to indirect through the board_api struct that is in main memory. Signed-off-by: Andy Green <andy@openmoko.com>
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@ -108,5 +108,7 @@ int nand_read_ll(unsigned char *buf, unsigned long start512, int blocks512);
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extern void memory_test(void * start, unsigned int length);
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void set_putc_func(void (*p)(char));
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#endif
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@ -341,7 +341,7 @@ const struct board_variant const * get_board_variant_gta02(void)
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return &board_variants[gta02_get_pcb_revision() & 1];
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}
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static void putc_gta02(char c)
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static __attribute__ (( section (".steppingstone") )) void putc_gta02(char c)
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{
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serial_putc_s3c24xx(GTA02_DEBUG_UART, c);
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}
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@ -37,12 +37,16 @@ SECTIONS
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. = ALIGN(4);
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.text :
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{
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src/cpu/s3c2442/start.o (.text .rodata* .data)
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src/cpu/s3c2442/lowlevel_init.o (.text .rodata* .data)
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src/cpu/s3c2442/start_qi.o (.text .rodata* .data)
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src/blink_led.o (.text .rodata* .data)
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src/cpu/s3c2442/nand_read.o (.text .rodata* .data)
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src/cpu/s3c2442/serial-s3c24xx.o (.text .rodata* .data)
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src/cpu/s3c2442/start.o (.text .rodata* .data .bss)
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src/cpu/s3c2442/lowlevel_init.o (.text .rodata* .data .bss)
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src/cpu/s3c2442/start_qi.o (.text .rodata* .data .bss)
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/* src/blink_led.o (.text .rodata* .data .bss) */
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src/cpu/s3c2442/nand_read.o (.text .rodata* .data .bss)
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src/cpu/s3c2442/serial-s3c24xx.o (.text .rodata* .data .bss)
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src/memory-test.o (.text .rodata* .data .bss)
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src/utils.o (.text .rodata* .data .bss)
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src/ctype.o (.text .rodata* .data .bss)
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* (.steppingstone)
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}
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. = ALIGN(4);
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@ -98,6 +98,7 @@ void start_qi(void)
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}
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this_board->port_init();
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set_putc_func(this_board->putc);
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/* stick some hello messages on debug console */
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@ -166,7 +166,7 @@ int is_this_board_gta03(void)
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return 1;
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}
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static void putc_gta03(char c)
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static __attribute__ (( section (".steppingstone") )) void putc_gta03(char c)
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{
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serial_putc_s3c64xx(GTA03_DEBUG_UART, c);
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}
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@ -42,13 +42,15 @@ SECTIONS
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__steppingstone :
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AT (0)
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{
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src/cpu/s3c6410/start.o (.text .rodata* .data)
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src/cpu/s3c6410/start_qi.o (.text .rodata* .data)
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src/cpu/s3c6410/serial-s3c64xx.o (.text .rodata* .data)
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src/cpu/s3c6410/gta03.o (.text .rodata* .data)
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src/cpu/s3c6410/hs_mmc.o (.text .rodata* .data)
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src/utils.o (.text .rodata* .data)
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src/ctype.o (.text .rodata* .data)
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src/cpu/s3c6410/start.o (.text .rodata* .data .bss)
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src/cpu/s3c6410/start_qi.o (.text .rodata* .data .bss)
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src/cpu/s3c6410/serial-s3c64xx.o (.text .rodata* .data .bss)
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src/cpu/s3c6410/gta03.o (.text .rodata* .data .bss)
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src/cpu/s3c6410/hs_mmc.o (.text .rodata* .data .bss)
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src/utils.o (.text .rodata* .data .bss)
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src/memory-test.o (.text .rodata* .data .bss)
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src/ctype.o (.text .rodata* .data .bss)
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* (.steppingstone)
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}
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. = ALIGN(4);
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@ -79,6 +79,7 @@ void start_qi(void)
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/* okay, do the critical port and serial init for our board */
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this_board->port_init();
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set_putc_func(this_board->putc);
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/* stick some hello messages on debug console */
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@ -97,7 +98,7 @@ void start_qi(void)
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if (!is_jtag) {
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/*
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* We got the first 4KBytes of the bootloader pulled into the
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* We got the first 8KBytes of the bootloader pulled into the
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* steppingstone SRAM for free. Now we pull the whole bootloader
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* image into SDRAM.
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*
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@ -23,10 +23,14 @@
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#include <qi.h>
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#include <string.h>
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static u8 malloc_pool[100 * 1024];
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void * malloc_pointer = &malloc_pool[0];
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static void (*putc_func)(char) = NULL;
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void set_putc_func(void (*p)(char))
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{
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putc_func = p;
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}
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size_t strlen(const char *s)
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{
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size_t n = 0;
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@ -88,7 +92,7 @@ char *strchr(const char *s, int c)
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int puts(const char *string)
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{
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while (*string)
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this_board->putc(*string++);
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(putc_func)(*string++);
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return 1;
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}
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@ -97,9 +101,9 @@ int puts(const char *string)
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void printnybble(unsigned char n)
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{
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if (n < 10)
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this_board->putc('0' + n);
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(putc_func)('0' + n);
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else
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this_board->putc('a' + n - 10);
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(putc_func)('a' + n - 10);
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}
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void print8(unsigned char n)
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@ -122,13 +126,13 @@ void hexdump(unsigned char *start, int len)
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while (len > 0) {
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print32((int)start);
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this_board->putc(':');
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this_board->putc(' ');
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(putc_func)(':');
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(putc_func)(' ');
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for (n = 0; n < 16; n++) {
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print8(*start++);
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this_board->putc(' ');
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(putc_func)(' ');
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}
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this_board->putc('\n');
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(putc_func)('\n');
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len -= 16;
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}
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}
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@ -152,7 +156,7 @@ void printdec(int n)
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int div = 0;
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if (n < 0) {
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this_board->putc('-');
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(putc_func)('-');
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n = -n;
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}
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@ -163,7 +167,7 @@ void printdec(int n)
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n -= d[div];
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}
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if (r || flag || (d[div] == 1)) {
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this_board->putc('0' + r);
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(putc_func)('0' + r);
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flag = 1;
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}
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div++;
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