diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/cpu/armv7/ls102xa/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/cpu/armv7/ls102xa/soc.c | 66 | ||||
-rw-r--r-- | arch/arm/include/asm/arch-ls102xa/ls102xa_soc.h | 12 |
3 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/ls102xa/Makefile b/arch/arm/cpu/armv7/ls102xa/Makefile index 2311468..0228300 100644 --- a/arch/arm/cpu/armv7/ls102xa/Makefile +++ b/arch/arm/cpu/armv7/ls102xa/Makefile @@ -8,6 +8,7 @@ obj-y += cpu.o obj-y += clock.o obj-y += timer.o obj-y += fsl_epu.o +obj-y += soc.o obj-$(CONFIG_SCSI_AHCI_PLAT) += ls102xa_sata.o obj-$(CONFIG_OF_LIBFDT) += fdt.o diff --git a/arch/arm/cpu/armv7/ls102xa/soc.c b/arch/arm/cpu/armv7/ls102xa/soc.c new file mode 100644 index 0000000..0fdd6d4 --- /dev/null +++ b/arch/arm/cpu/armv7/ls102xa/soc.c @@ -0,0 +1,66 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/arch/clock.h> +#include <asm/io.h> +#include <asm/arch/immap_ls102xa.h> +#include <asm/arch/ls102xa_soc.h> + +unsigned int get_soc_major_rev(void) +{ + struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR); + unsigned int svr, major; + + svr = in_be32(&gur->svr); + major = SVR_MAJ(svr); + + return major; +} + +int arch_soc_init(void) +{ + struct ccsr_scfg *scfg = (struct ccsr_scfg *)CONFIG_SYS_FSL_SCFG_ADDR; + struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR; + unsigned int major; + +#ifdef CONFIG_FSL_QSPI + out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL); +#endif + +#ifdef CONFIG_FSL_DCU_FB + out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN); +#endif + + /* Configure Little endian for SAI, ASRC and SPDIF */ + out_be32(&scfg->endiancr, SCFG_ENDIANCR_LE); + + /* + * Enable snoop requests and DVM message requests for + * Slave insterface S4 (A7 core cluster) + */ + out_le32(&cci->slave[4].snoop_ctrl, + CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN); + + major = get_soc_major_rev(); + if (major == SOC_MAJOR_VER_1_0) { + /* + * Set CCI-400 Slave interface S1, S2 Shareable Override + * Register All transactions are treated as non-shareable + */ + out_le32(&cci->slave[1].sha_ord, CCI400_SHAORD_NON_SHAREABLE); + out_le32(&cci->slave[2].sha_ord, CCI400_SHAORD_NON_SHAREABLE); + + /* Workaround for the issue that DDR could not respond to + * barrier transaction which is generated by executing DSB/ISB + * instruction. Set CCI-400 control override register to + * terminate the barrier transaction. After DDR is initialized, + * allow barrier transaction to DDR again */ + out_le32(&cci->ctrl_ord, CCI400_CTRLORD_TERM_BARRIER); + } + + return 0; +} diff --git a/arch/arm/include/asm/arch-ls102xa/ls102xa_soc.h b/arch/arm/include/asm/arch-ls102xa/ls102xa_soc.h new file mode 100644 index 0000000..f10cb91 --- /dev/null +++ b/arch/arm/include/asm/arch-ls102xa/ls102xa_soc.h @@ -0,0 +1,12 @@ +/* + * Copyright 2015 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __FSL_LS102XA_SOC_H +#define __FSL_LS102XA_SOC_H + +unsigned int get_soc_major_rev(void); +int arch_soc_init(void); +#endif /* __FSL_LS102XA_SOC_H */ |