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qi-fix-resume.patch
Add resume processing so we can resume and not just start up Signed-off-by: Andy Green <andy@openmoko.com>
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@ -22,6 +22,11 @@
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#define __ASM_MODE__
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#include <neo_gta02.h>
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#define S3C2410_MISCCR_nEN_SCLK0 (1 << 17)
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#define S3C2410_MISCCR_nEN_SCLK1 (1 << 18)
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#define S3C2410_MISCCR_nEN_SCLKE (1 << 19)
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.globl _start
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_start: b start_code
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/* if we are injected by JTAG, the script sets _istag content to nonzero */
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@ -168,8 +173,6 @@ start_code:
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ldr r1, =0x54
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str r1, [r0, #0x20]
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bl cpu_init_crit
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/* reset nand controller, or it is dead to us */
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mov r1, #0x4E000000
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@ -182,6 +185,57 @@ start_code:
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orr r3, r3, #1 @ enable nand controller
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str r3, [r1, #4]
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/* take sdram out of power down */
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ldr r0, =0x56000080 /* misccr */
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ldr r1, [ r0 ]
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bic r1, r1, #(S3C2410_MISCCR_nEN_SCLK0 | S3C2410_MISCCR_nEN_SCLK1 | S3C2410_MISCCR_nEN_SCLKE)
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str r1, [ r0 ]
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/* ensure signals stabalise */
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mov r1, #128
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1: subs r1, r1, #1
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bpl 1b
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bl cpu_init_crit
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/* ensure some refresh has happened */
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ldr r1, =0xfffff
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1: subs r1, r1, #1
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bpl 1b
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/* capture full EINT situation into gstatus 4 */
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ldr r0, =0x4A000000 /* SRCPND */
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ldr r1, [ r0 ]
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and r1, r1, #0xf
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ldr r0, =0x560000BC /* gstatus4 */
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str r1, [ r0 ]
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ldr r0, =0x560000A8 /* EINTPEND */
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ldr r1, [ r0 ]
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ldr r0, =0xfff0
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and r1, r1, r0
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ldr r0, =0x560000BC /* gstatus4 */
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ldr r0, [ r0 ]
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orr r1, r1, r0
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ldr r0, =0x560000BC /* gstatus4 */
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str r1, [ r0 ]
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/* test for resume */
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ldr r1, =0x560000B4 /* gstatus2 */
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ldr r0, [ r1 ]
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tst r0, #0x02 /* is this resume from power down */
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/* well, if it was, we are going to jump to
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* whatever address we stashed in gstatus3,
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* and gstatus4 will hold the wake interrupt
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* source for the OS to look at
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*/
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ldrne pc, [r1, #4]
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/* >> CFG_VIDEO_LOGO_MAX_SIZE */
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#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
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