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qi-change-boot-speed-200MHz.patch

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Part of the effort to save power during booting so we can do it inside the
500mW budget from un-enumerated USB connection.

Signed-off-by: Andy Green <andy@openmoko.com>
This commit is contained in:
Andy Green 2008-11-28 10:16:39 +00:00 committed by Andy Green
parent f6bb301f5f
commit cea4b83d53
1 changed files with 6 additions and 1 deletions
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7
qiboot/src/gta02/gta02.c
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@ -92,9 +92,11 @@ static const struct board_variant board_variants[] = {
void port_init_gta02(void) void port_init_gta02(void)
{ {
#if 0
unsigned int * MPLLCON = (unsigned int *)0x4c000004; unsigned int * MPLLCON = (unsigned int *)0x4c000004;
unsigned int * UPLLCON = (unsigned int *)0x4c000008; unsigned int * UPLLCON = (unsigned int *)0x4c000008;
unsigned int * CLKDIVN = (unsigned int *)0x4c000014; unsigned int * CLKDIVN = (unsigned int *)0x4c000014;
#endif
int n; int n;
//CAUTION:Follow the configuration order for setting the ports. //CAUTION:Follow the configuration order for setting the ports.
@ -224,7 +226,7 @@ void port_init_gta02(void)
i2c_write_sync(&bb_s3c24xx, PCF50633_I2C_ADS, i2c_write_sync(&bb_s3c24xx, PCF50633_I2C_ADS,
pcf50633_init[n].index, pcf50633_init[n].value); pcf50633_init[n].index, pcf50633_init[n].value);
#if 0
/* change CPU clocking to 400MHz 1:4:8 */ /* change CPU clocking to 400MHz 1:4:8 */
/* clock divide 1:4:8 - do it first */ /* clock divide 1:4:8 - do it first */
@ -246,6 +248,9 @@ void port_init_gta02(void)
/* get debug UART working at 115kbps */ /* get debug UART working at 115kbps */
serial_init_115200_s3c24xx(GTA02_DEBUG_UART, 50 /* 50MHz PCLK */); serial_init_115200_s3c24xx(GTA02_DEBUG_UART, 50 /* 50MHz PCLK */);
#else
serial_init_115200_s3c24xx(GTA02_DEBUG_UART, 33 /* 33MHz PCLK */);
#endif
/* we're going to use Glamo for SD Card access, so we need to init the /* we're going to use Glamo for SD Card access, so we need to init the
* evil beast * evil beast