diff options
| author | Chuanhua Han <chuanhua.han@nxp.com> | 2019-08-01 16:36:57 +0800 |
|---|---|---|
| committer | Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> | 2019-08-22 09:07:36 +0530 |
| commit | 1748990ab2a0e995beeed6b3856335f579bb77d9 (patch) | |
| tree | 814428e029da8ef7f4487836b9d765ffe5445b26 /board | |
| parent | a02a9421f4ac96e7a3f441d2388e9945a9d84e05 (diff) | |
armv8: ls1088aqds: support DSPI mode by hwconfig
BRDCFG4[USBOSC] and BRDCFG5[SPR] register field of Qixis device is used
to control SPI and other IP signal routing.
USBOSC:
0= SPI_CLK used as external USB REFCLK input driven with 24.000 MHz.
SPI devices are unusable in this mode.
1= SPI_CLK used as SPI clock.
SPI devices are usable in this mode. USB block is clocked from
internal sources
SPR[3:2]:
SPI_CS / SDHC_DAT4:7 Routing (schematic net CFG_SPI_ROUTE[3:2]):
00= SDHC/eMMC 8-bit
01= SD Card Rev 2.0/3.0
10= SPI on-board memory
11= TDM Riser / SPI off-board connector.
The default value is 00 if an SDCard/eMMC card is selected as the boot
device.
SPR[1:0]:
SPI_SIN/SOUT/SCK Routing (schematic net CFG_SPI_ROUTE[1:0]):
00= SDHC Sync loop
01= TDM Riser / SPI off-board connector.
10= SPI on-board memory.
11= SPI off-board connector.
By default, the SPI feature is not available, so we need to configure
the above register fields to select the route to the SPI feature.
Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/ls1088a/ls1088a.c | 26 | ||||
| -rw-r--r-- | board/freescale/ls1088a/ls1088a_qixis.h | 11 |
2 files changed, 37 insertions, 0 deletions
diff --git a/board/freescale/ls1088a/ls1088a.c b/board/freescale/ls1088a/ls1088a.c index 1033d44409..b851e159bc 100644 --- a/board/freescale/ls1088a/ls1088a.c +++ b/board/freescale/ls1088a/ls1088a.c @@ -591,6 +591,32 @@ int misc_init_r(void) QIXIS_WRITE(brdcfg[5], brdcfg5); } #endif + +#ifdef CONFIG_TARGET_LS1088AQDS + u8 brdcfg4, brdcfg5; + + if (hwconfig("dspi-on-board")) { + brdcfg4 = QIXIS_READ(brdcfg[4]); + brdcfg4 &= ~BRDCFG4_USBOSC_MASK; + brdcfg4 |= BRDCFG4_SPI; + QIXIS_WRITE(brdcfg[4], brdcfg4); + + brdcfg5 = QIXIS_READ(brdcfg[5]); + brdcfg5 &= ~BRDCFG5_SPR_MASK; + brdcfg5 |= BRDCFG5_SPI_ON_BOARD; + QIXIS_WRITE(brdcfg[5], brdcfg5); + } else if (hwconfig("dspi-off-board")) { + brdcfg4 = QIXIS_READ(brdcfg[4]); + brdcfg4 &= ~BRDCFG4_USBOSC_MASK; + brdcfg4 |= BRDCFG4_SPI; + QIXIS_WRITE(brdcfg[4], brdcfg4); + + brdcfg5 = QIXIS_READ(brdcfg[5]); + brdcfg5 &= ~BRDCFG5_SPR_MASK; + brdcfg5 |= BRDCFG5_SPI_OFF_BOARD; + QIXIS_WRITE(brdcfg[5], brdcfg5); + } +#endif return 0; } #endif diff --git a/board/freescale/ls1088a/ls1088a_qixis.h b/board/freescale/ls1088a/ls1088a_qixis.h index c58852617f..e3502eb1d1 100644 --- a/board/freescale/ls1088a/ls1088a_qixis.h +++ b/board/freescale/ls1088a/ls1088a_qixis.h @@ -41,4 +41,15 @@ #define BRDCFG5_SPISDHC_MASK 0x0C #define BRDCFG5_FORCE_SD 0x08 +/* Definitions of QIXIS Registers for LS1088AQDS */ + +/* BRDCFG4 */ +#define BRDCFG4_USBOSC_MASK 0x01 +#define BRDCFG4_SPI 0x01 + +/* BRDCFG5 */ +#define BRDCFG5_SPR_MASK 0x0f +#define BRDCFG5_SPI_ON_BOARD 0x0a +#define BRDCFG5_SPI_OFF_BOARD 0x0f + #endif |