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Cleaned up init config and picked a safe bet on FRAM clock speed

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This commit is contained in:
Lorenz Meier 2014-01-09 18:05:17 +01:00
parent 6b8c3283a7
commit 4fcbe806ce
1 changed files with 9 additions and 6 deletions
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15
src/drivers/boards/px4fmu-v2/px4fmu2_init.c
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@ -282,7 +282,7 @@ __EXPORT int nsh_archinitialize(void)
SPI_SELECT(spi1, PX4_SPIDEV_MPU, false);
up_udelay(20);
message("[boot] Successfully initialized SPI port 1\n");
message("[boot] Initialized SPI port 1 (SENSORS)\n");
/* Get the SPI port for the FRAM */
@ -294,20 +294,23 @@ __EXPORT int nsh_archinitialize(void)
return -ENODEV;
}
/* Default SPI2 to 37.5 MHz (F4 max) and de-assert the known chip selects. */
SPI_SETFREQUENCY(spi2, 375000000);
/* Default SPI2 to 37.5 MHz (40 MHz rounded to nearest valid divider, F4 max)
* and de-assert the known chip selects. */
// XXX start with 10.4 MHz in FRAM usage and go up to 37.5 once validated
SPI_SETFREQUENCY(spi2, 12 * 1000 * 1000);
SPI_SETBITS(spi2, 8);
SPI_SETMODE(spi2, SPIDEV_MODE3);
SPI_SELECT(spi2, SPIDEV_FLASH, false);
message("[boot] Successfully initialized SPI port 2\n");
message("[boot] Initialized SPI port 2 (RAMTRON FRAM)\n");
#ifdef CONFIG_MMCSD
/* First, get an instance of the SDIO interface */
sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
if (!sdio) {
message("nsh_archinitialize: Failed to initialize SDIO slot %d\n",
message("[boot] Failed to initialize SDIO slot %d\n",
CONFIG_NSH_MMCSDSLOTNO);
return -ENODEV;
}
@ -315,7 +318,7 @@ __EXPORT int nsh_archinitialize(void)
/* Now bind the SDIO interface to the MMC/SD driver */
int ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdio);
if (ret != OK) {
message("nsh_archinitialize: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
message("[boot] Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
return ret;
}