diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2008-03-14 13:01:13 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2008-03-14 13:01:13 +0100 |
| commit | 60a387ebbd5ed520209052f46bccb909fbe2e137 (patch) | |
| tree | 7c3535bc9a044f5dc145cbdb7e3ea604e102ebe8 /board | |
| parent | a14a5c02f0063e0cf7aae85aace499a080b790c1 (diff) | |
| download | barebox-60a387ebbd5ed520209052f46bccb909fbe2e137.tar.gz barebox-60a387ebbd5ed520209052f46bccb909fbe2e137.tar.xz | |
pcm038 spi (pmic) support
Diffstat (limited to 'board')
| -rw-r--r-- | board/pcm038/pcm038.c | 66 |
1 files changed, 63 insertions, 3 deletions
diff --git a/board/pcm038/pcm038.c b/board/pcm038/pcm038.c index e34d3c4134..77c05ecec3 100644 --- a/board/pcm038/pcm038.c +++ b/board/pcm038/pcm038.c @@ -28,10 +28,12 @@ #include <asm/arch/gpio.h> #include <asm/armlinux.h> #include <asm/mach-types.h> +#include <asm/arch/pmic.h> #include <partition.h> #include <fs.h> #include <fcntl.h> #include <spi/spi.h> +#include <asm/io.h> static struct device_d cfi_dev = { .name = "cfi_flash", @@ -104,6 +106,13 @@ static int pcm038_devices_init(void) PE13_PF_UART1_RXD, PE14_PF_UART1_CTS, PE15_PF_UART1_RTS, + PD25_PF_CSPI1_RDY, + PD26_PF_CSPI1_SS2, + PD27_PF_CSPI1_SS1, + PD28_PF_CSPI1_SS0, + PD29_PF_CSPI1_SCLK, + PD30_PF_CSPI1_MISO, + PD31_PF_CSPI1_MOSI, }; /* initizalize gpios */ @@ -112,10 +121,12 @@ static int pcm038_devices_init(void) register_device(&cfi_dev); register_device(&sdram_dev); - register_device(&fec_dev); - register_device(&spi_dev); - spi_register_boardinfo(pcm038_spi_board_info, ARRAY_SIZE(pcm038_spi_board_info)); + PCCR0 |= PCCR0_CSPI1_EN; + PCCR1 |= PCCR1_PERCLK2_EN; + + spi_register_board_info(pcm038_spi_board_info, ARRAY_SIZE(pcm038_spi_board_info)); + register_device(&spi_dev); dev_add_partition(&cfi_dev, 0x00000, 0x20000, PARTITION_FIXED, "self"); dev_add_partition(&cfi_dev, 0x20000, 0x20000, PARTITION_FIXED, "env"); @@ -145,3 +156,52 @@ static int pcm038_console_init(void) console_initcall(pcm038_console_init); +static int pcm038_power_init(void) +{ + volatile int i = 0; + int ret; + + ret = pmic_power(); + if (ret) + goto out; + + MPCTL0 = PLL_PCTL_PD(0) | + PLL_PCTL_MFD(51) | + PLL_PCTL_MFI(7) | + PLL_PCTL_MFN(35); + + CSCR |= CSCR_MPLL_RESTART; + + /* We need a delay here. We can't use udelay because + * the PLL is not running. Do not remove the volatile + * above because otherwise the compiler will optimize the loop + * away. + */ + while(i++ < 10000); + + CSCR = CSCR_USB_DIV(3) | \ + CSCR_SD_CNT(3) | \ + CSCR_MSHC_SEL | \ + CSCR_H264_SEL | \ + CSCR_SSI1_SEL | \ + CSCR_SSI2_SEL | \ + CSCR_MCU_SEL | \ + CSCR_SP_SEL | \ + CSCR_ARM_SRC_MPLL | \ + CSCR_ARM_DIV(0) | \ + CSCR_AHB_DIV(3) | \ + CSCR_FPM_EN | \ + CSCR_MPEN; + + PCDR1 = 0x09030911; +out: + /* Register the fec device after the PLL re-initialisation + * as the fec depends on the (now higher) ipg clock + */ + register_device(&fec_dev); + + return 0; +} + +late_initcall(pcm038_power_init); + |