From 5122dfae5d3cd68e0b6e5e08597df91ba79770aa Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Fri, 25 Apr 2014 16:31:22 +0800 Subject: powerpc/85xx: add T4080 SoC support The T4080 SoC is a low-power version of the T4160. T4080 combines 4 dual-threaded Power Architecture e6500 cores with single cluster and two memory complexes. Signed-off-by: Shengzhou Liu --- arch/powerpc/cpu/mpc85xx/Makefile | 2 ++ arch/powerpc/cpu/mpc85xx/cpu.c | 24 ++++++++++++++++++++++++ arch/powerpc/cpu/mpc85xx/cpu_init.c | 9 ++++++++- arch/powerpc/cpu/mpc85xx/speed.c | 3 ++- arch/powerpc/cpu/mpc85xx/t4240_serdes.c | 2 +- 5 files changed, 37 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/cpu/mpc85xx') diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile index 4094785..ad26b43 100644 --- a/arch/powerpc/cpu/mpc85xx/Makefile +++ b/arch/powerpc/cpu/mpc85xx/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_PPC_P5020) += p5020_ids.o obj-$(CONFIG_PPC_P5040) += p5040_ids.o obj-$(CONFIG_PPC_T4240) += t4240_ids.o obj-$(CONFIG_PPC_T4160) += t4240_ids.o +obj-$(CONFIG_PPC_T4080) += t4240_ids.o obj-$(CONFIG_PPC_B4420) += b4860_ids.o obj-$(CONFIG_PPC_B4860) += b4860_ids.o obj-$(CONFIG_PPC_T1040) += t1040_ids.o @@ -88,6 +89,7 @@ obj-$(CONFIG_PPC_P5020) += p5020_serdes.o obj-$(CONFIG_PPC_P5040) += p5040_serdes.o obj-$(CONFIG_PPC_T4240) += t4240_serdes.o obj-$(CONFIG_PPC_T4160) += t4240_serdes.o +obj-$(CONFIG_PPC_T4080) += t4240_serdes.o obj-$(CONFIG_PPC_B4420) += b4860_serdes.o obj-$(CONFIG_PPC_B4860) += b4860_serdes.o obj-$(CONFIG_BSC9132) += bsc9132_serdes.o diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c index 12e8e10..684d400 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu.c +++ b/arch/powerpc/cpu/mpc85xx/cpu.c @@ -77,6 +77,30 @@ int checkcpu (void) major = SVR_MAJ(svr); minor = SVR_MIN(svr); +#if defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) && defined(CONFIG_E6500) + if (SVR_SOC_VER(svr) == SVR_T4080) { + ccsr_rcpm_t *rcpm = + (void __iomem *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR); + + setbits_be32(&gur->devdisr2, FSL_CORENET_DEVDISR2_DTSEC1_6 || + FSL_CORENET_DEVDISR2_DTSEC1_9); + setbits_be32(&gur->devdisr3, FSL_CORENET_DEVDISR3_PCIE3); + setbits_be32(&gur->devdisr5, FSL_CORENET_DEVDISR5_DDR3); + + /* It needs SW to disable core4~7 as HW design sake on T4080 */ + for (i = 4; i < 8; i++) + cpu_disable(i); + + /* request core4~7 into PH20 state, prior to entering PCL10 + * state, all cores in cluster should be placed in PH20 state. + */ + setbits_be32(&rcpm->pcph20setr, 0xf0); + + /* put the 2nd cluster into PCL10 state */ + setbits_be32(&rcpm->clpcl10setr, 1 << 1); + } +#endif + if (cpu_numcores() > 1) { #ifndef CONFIG_MP puts("Unicore software on multiprocessor system!!\n" diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c index 36ef232..7e27464 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c @@ -462,10 +462,17 @@ __attribute__((weak, alias("__fsl_serdes__init"))) void fsl_serdes_init(void); int enable_cluster_l2(void) { int i = 0; - u32 cluster; + u32 cluster, svr = get_svr(); ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); struct ccsr_cluster_l2 __iomem *l2cache; + /* only the L2 of first cluster should be enabled as expected on T4080, + * but there is no EOC in the first cluster as HW sake, so return here + * to skip enabling L2 cache of the 2nd cluster. + */ + if (SVR_SOC_VER(svr) == SVR_T4080) + return 0; + cluster = in_be32(&gur->tp_cluster[i].lower); if (cluster & TP_CLUSTER_EOC) return 0; diff --git a/arch/powerpc/cpu/mpc85xx/speed.c b/arch/powerpc/cpu/mpc85xx/speed.c index d516d4e..3236f6a 100644 --- a/arch/powerpc/cpu/mpc85xx/speed.c +++ b/arch/powerpc/cpu/mpc85xx/speed.c @@ -123,7 +123,8 @@ void get_sys_info(sys_info_t *sys_info) * T4240/T4160 Rev1.0. eg. It's 12 in Rev1.0, however, for Rev2.0 * it uses 6. */ -#if defined(CONFIG_PPC_T4240) || defined(CONFIG_PPC_T4160) +#if defined(CONFIG_PPC_T4240) || defined(CONFIG_PPC_T4160) || \ + defined(CONFIG_PPC_T4080) if (SVR_MAJ(get_svr()) >= 2) mem_pll_rat *= 2; #endif diff --git a/arch/powerpc/cpu/mpc85xx/t4240_serdes.c b/arch/powerpc/cpu/mpc85xx/t4240_serdes.c index ff55e3c..1f99a0a 100644 --- a/arch/powerpc/cpu/mpc85xx/t4240_serdes.c +++ b/arch/powerpc/cpu/mpc85xx/t4240_serdes.c @@ -172,7 +172,7 @@ static const struct serdes_config serdes4_cfg_tbl[] = { {18, {PCIE3, PCIE3, PCIE3, PCIE3, AURORA, AURORA, AURORA, AURORA}}, {} }; -#elif defined(CONFIG_PPC_T4160) +#elif defined(CONFIG_PPC_T4160) || defined(CONFIG_PPC_T4080) static const struct serdes_config serdes1_cfg_tbl[] = { /* SerDes 1 */ {1, {XAUI_FM1_MAC9, XAUI_FM1_MAC9, -- cgit v1.1