Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- arch/arm/mach-layerscape/Makefile | 2 + arch/arm/mach-layerscape/lowlevel-ls1028a.c | 42 +++++++++++++++++++++ include/mach/layerscape/layerscape.h | 7 ++++ 3 files changed, 51 insertions(+) create mode 100644 arch/arm/mach-layerscape/lowlevel-ls1028a.c diff --git a/arch/arm/mach-layerscape/Makefile b/arch/arm/mach-layerscape/Makefile index 8f288851ff..e4bb1b42f2 100644 --- a/arch/arm/mach-layerscape/Makefile +++ b/arch/arm/mach-layerscape/Makefile @@ -12,3 +12,5 @@ obj-$(CONFIG_BOOTM) += pblimage.o lwl-$(CONFIG_ARCH_LS1021) += lowlevel-ls102xa.o obj-$(CONFIG_ARCH_LS1021) += restart.o ls102xa_stream_id.o + +lwl-$(CONFIG_ARCH_LS1028) += lowlevel-ls1028a.o diff --git a/arch/arm/mach-layerscape/lowlevel-ls1028a.c b/arch/arm/mach-layerscape/lowlevel-ls1028a.c new file mode 100644 index 0000000000..fd013b2b52 --- /dev/null +++ b/arch/arm/mach-layerscape/lowlevel-ls1028a.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0+ +#include <common.h> +#include <io.h> +#include <asm/syscounter.h> +#include <asm/system.h> +#include <mach/layerscape/errata.h> +#include <mach/layerscape/lowlevel.h> +#include <soc/fsl/immap_lsch3.h> +#include <soc/fsl/scfg.h> + +static void ls1028a_timer_init(void) +{ + u32 __iomem *cntcr = IOMEM(LSCH3_TIMER_ADDR); + u32 __iomem *cltbenr = IOMEM(LSCH3_PMU_CLTBENR); + + u32 __iomem *pctbenr = IOMEM(LSCH3_PCTBENR_OFFSET); + + /* Enable timebase for all clusters. + * It is safe to do so even some clusters are not enabled. + */ + out_le32(cltbenr, 0xf); + + /* + * In certain Layerscape SoCs, the clock for each core's + * has an enable bit in the PMU Physical Core Time Base Enable + * Register (PCTBENR), which allows the watchdog to operate. + */ + setbits_le32(pctbenr, 0xff); + + /* Enable clock for timer + * This is a global setting. + */ + out_le32(cntcr, 0x1); +} + +void ls1028a_init_lowlevel(void) +{ + scfg_init(SCFG_ENDIANESS_LITTLE); + set_cntfrq(25000000); + ls1028a_timer_init(); + ls1028a_errata(); +} diff --git a/include/mach/layerscape/layerscape.h b/include/mach/layerscape/layerscape.h index c3dfe4d860..95c230b8f3 100644 --- a/include/mach/layerscape/layerscape.h +++ b/include/mach/layerscape/layerscape.h @@ -9,6 +9,13 @@ #define LS1021A_DDR_SDRAM_BASE 0x80000000 #define LS1021A_DDR_FREQ 1600000000 +#define LS1028A_DDR_SDRAM_BASE 0x80000000 +#define LS1028A_DDR_SDRAM_LOWMEM_SIZE 0x80000000 +#define LS1028A_DDR_SDRAM_HIGHMEM_BASE 0x2080000000 +#define LS1028A_SECURE_DRAM_SIZE SZ_64M +#define LS1028A_SP_SHARED_DRAM_SIZE SZ_2M +#define LS1028A_TZC400_BASE 0x01100000 + enum bootsource ls1046a_bootsource_get(void); enum bootsource ls1021a_bootsource_get(void); -- 2.39.2