diff options
Diffstat (limited to 'arch/powerpc/cpu')
23 files changed, 247 insertions, 35 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/pcie.c b/arch/powerpc/cpu/mpc83xx/pcie.c index 09970b0..28c25e5 100644 --- a/arch/powerpc/cpu/mpc83xx/pcie.c +++ b/arch/powerpc/cpu/mpc83xx/pcie.c @@ -299,6 +299,8 @@ static void mpc83xx_pcie_init_bus(int bus, struct pci_region *reg) printf("PCIE%d: ", bus); +#define PCI_LTSSM 0x404 /* PCIe Link Training, Status State Machine */ +#define PCI_LTSSM_L0 0x16 /* L0 state */ reg16 = in_le16(hose_cfg_base + PCI_LTSSM); if (reg16 >= PCI_LTSSM_L0) printf("link\n"); diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile index 0d1e8f1..f70f0d7 100644 --- a/arch/powerpc/cpu/mpc85xx/Makefile +++ b/arch/powerpc/cpu/mpc85xx/Makefile @@ -46,6 +46,7 @@ COBJS-$(CONFIG_MPC8568) += ddr-gen2.o COBJS-$(CONFIG_MPC8544) += ddr-gen2.o # supports ddr1/2/3 +COBJS-$(CONFIG_PPC_C29X) += ddr-gen3.o COBJS-$(CONFIG_MPC8572) += ddr-gen3.o COBJS-$(CONFIG_MPC8536) += ddr-gen3.o COBJS-$(CONFIG_MPC8569) += ddr-gen3.o @@ -100,6 +101,7 @@ COBJS-$(CONFIG_SYS_FSL_QORIQ_CHASSIS1) += fsl_corenet_serdes.o COBJS-$(CONFIG_SYS_FSL_QORIQ_CHASSIS2) += fsl_corenet2_serdes.o # SoC specific SERDES support +COBJS-$(CONFIG_PPC_C29X) += c29x_serdes.o COBJS-$(CONFIG_MPC8536) += mpc8536_serdes.o COBJS-$(CONFIG_MPC8544) += mpc8544_serdes.o COBJS-$(CONFIG_MPC8548) += mpc8548_serdes.o diff --git a/arch/powerpc/cpu/mpc85xx/b4860_ids.c b/arch/powerpc/cpu/mpc85xx/b4860_ids.c index 53c6a7f..39b8e3e 100644 --- a/arch/powerpc/cpu/mpc85xx/b4860_ids.c +++ b/arch/powerpc/cpu/mpc85xx/b4860_ids.c @@ -41,8 +41,8 @@ struct qportal_info qp_info[CONFIG_SYS_QMAN_NUM_PORTALS] = { #ifdef CONFIG_SYS_SRIO struct srio_liodn_id_table srio_liodn_tbl[] = { - SET_SRIO_LIODN_1(1, 307), - SET_SRIO_LIODN_1(2, 387), + SET_SRIO_LIODN_BASE(1, 307), + SET_SRIO_LIODN_BASE(2, 387), }; int srio_liodn_tbl_sz = ARRAY_SIZE(srio_liodn_tbl); #endif @@ -112,10 +112,10 @@ int sec_liodn_tbl_sz = ARRAY_SIZE(sec_liodn_tbl); #ifdef CONFIG_SYS_DPAA_RMAN struct liodn_id_table rman_liodn_tbl[] = { /* Set RMan block 0-3 liodn offset */ - SET_RMAN_LIODN(0, 678), - SET_RMAN_LIODN(1, 679), - SET_RMAN_LIODN(2, 680), - SET_RMAN_LIODN(3, 681), + SET_RMAN_LIODN(0, 6), + SET_RMAN_LIODN(1, 7), + SET_RMAN_LIODN(2, 8), + SET_RMAN_LIODN(3, 9), }; int rman_liodn_tbl_sz = ARRAY_SIZE(rman_liodn_tbl); #endif diff --git a/arch/powerpc/cpu/mpc85xx/c29x_serdes.c b/arch/powerpc/cpu/mpc85xx/c29x_serdes.c new file mode 100644 index 0000000..51972cb --- /dev/null +++ b/arch/powerpc/cpu/mpc85xx/c29x_serdes.c @@ -0,0 +1,62 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <config.h> +#include <common.h> +#include <asm/io.h> +#include <asm/immap_85xx.h> +#include <asm/fsl_serdes.h> + +#define SRDS1_MAX_LANES 4 + +static u32 serdes1_prtcl_map; + +struct serdes_config { + u32 protocol; + u8 lanes[SRDS1_MAX_LANES]; +}; + +static const struct serdes_config serdes1_cfg_tbl[] = { + /* SerDes 1 */ + {1, {PCIE1, PCIE1, PCIE1, PCIE1} }, + {2, {PCIE1, PCIE1, PCIE1, PCIE1} }, + {3, {PCIE1, PCIE1, NONE, NONE} }, + {4, {PCIE1, PCIE1, NONE, NONE} }, + {5, {PCIE1, NONE, NONE, NONE} }, + {6, {PCIE1, NONE, NONE, NONE} }, + {} +}; + +int is_serdes_configured(enum srds_prtcl device) +{ + return (1 << device) & serdes1_prtcl_map; +} + +void fsl_serdes_init(void) +{ + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR; + u32 pordevsr = in_be32(&gur->pordevsr); + u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> + MPC85xx_PORDEVSR_IO_SEL_SHIFT; + const struct serdes_config *ptr; + int lane; + + debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg); + + if (srds_cfg > ARRAY_SIZE(serdes1_cfg_tbl)) { + printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg); + return; + } + + ptr = &serdes1_cfg_tbl[srds_cfg]; + if (!ptr->protocol) + return; + + for (lane = 0; lane < SRDS1_MAX_LANES; lane++) { + enum srds_prtcl lane_prtcl = ptr->lanes[lane]; + serdes1_prtcl_map |= (1 << lane_prtcl); + } +} diff --git a/arch/powerpc/cpu/mpc85xx/cmd_errata.c b/arch/powerpc/cpu/mpc85xx/cmd_errata.c index 5cd02cc..cbb443f 100644 --- a/arch/powerpc/cpu/mpc85xx/cmd_errata.c +++ b/arch/powerpc/cpu/mpc85xx/cmd_errata.c @@ -245,6 +245,9 @@ static int do_errata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) #ifdef CONFIG_SYS_FSL_ERRATUM_A006593 puts("Work-around for Erratum A006593 enabled\n"); #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A005812 + puts("Work-around for Erratum A-005812 enabled\n"); +#endif return 0; } diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c index 91ac4ee..66bc6a2 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu.c +++ b/arch/powerpc/cpu/mpc85xx/cpu.c @@ -44,10 +44,10 @@ int checkcpu (void) uint major, minor; struct cpu_type *cpu; char buf1[32], buf2[32]; -#if (defined(CONFIG_DDR_CLK_FREQ) || \ - defined(CONFIG_FSL_CORENET)) && !defined(CONFIG_SYS_FSL_QORIQ_CHASSIS2) - volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); -#endif /* CONFIG_FSL_CORENET */ +#if defined(CONFIG_DDR_CLK_FREQ) || defined(CONFIG_FSL_CORENET) + ccsr_gur_t __iomem *gur = + (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR); +#endif /* * Cornet platforms use ddr sync bit in RCW to indicate sync vs async @@ -211,6 +211,21 @@ int checkcpu (void) puts("L1: D-cache 32 kB enabled\n I-cache 32 kB enabled\n"); +#ifdef CONFIG_FSL_CORENET + /* Display the RCW, so that no one gets confused as to what RCW + * we're actually using for this boot. + */ + puts("Reset Configuration Word (RCW):"); + for (i = 0; i < ARRAY_SIZE(gur->rcwsr); i++) { + u32 rcw = in_be32(&gur->rcwsr[i]); + + if ((i % 4) == 0) + printf("\n %08x:", i * 4); + printf(" %08x", rcw); + } + puts("\n"); +#endif + return 0; } diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c index 25beda2..48b3826 100644 --- a/arch/powerpc/cpu/mpc85xx/cpu_init.c +++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c @@ -399,6 +399,14 @@ int cpu_init_r(void) sync(); } #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A005812 + /* + * A-005812 workaround sets bit 32 of SPR 976 for SoCs running + * in write shadow mode. Checking DCWS before setting SPR 976. + */ + if (mfspr(L1CSR2) & L1CSR2_DCWS) + mtspr(SPRN_HDBCR0, (mfspr(SPRN_HDBCR0) | 0x80000000)); +#endif #if defined(CONFIG_PPC_SPINTABLE_COMPATIBLE) && defined(CONFIG_MP) spin = getenv("spin_table_compat"); @@ -532,8 +540,10 @@ skip_l2: enable_cpc(); +#ifndef CONFIG_SYS_FSL_NO_SERDES /* needs to be in ram since code uses global static vars */ fsl_serdes_init(); +#endif #ifdef CONFIG_SYS_FSL_ERRATUM_A005871 if (IS_SVR_REV(svr, 1, 0)) { diff --git a/arch/powerpc/cpu/mpc85xx/ddr-gen1.c b/arch/powerpc/cpu/mpc85xx/ddr-gen1.c index 8a86819..4dd8c0b 100644 --- a/arch/powerpc/cpu/mpc85xx/ddr-gen1.c +++ b/arch/powerpc/cpu/mpc85xx/ddr-gen1.c @@ -15,7 +15,7 @@ #endif void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num) + unsigned int ctrl_num, int step) { unsigned int i; volatile ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC8xxx_DDR_ADDR; diff --git a/arch/powerpc/cpu/mpc85xx/ddr-gen2.c b/arch/powerpc/cpu/mpc85xx/ddr-gen2.c index a705862..542bc84 100644 --- a/arch/powerpc/cpu/mpc85xx/ddr-gen2.c +++ b/arch/powerpc/cpu/mpc85xx/ddr-gen2.c @@ -16,7 +16,7 @@ #endif void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num) + unsigned int ctrl_num, int step) { unsigned int i; ccsr_ddr_t *ddr = (void *)CONFIG_SYS_MPC8xxx_DDR_ADDR; diff --git a/arch/powerpc/cpu/mpc85xx/ddr-gen3.c b/arch/powerpc/cpu/mpc85xx/ddr-gen3.c index c5b4720..1be51d3 100644 --- a/arch/powerpc/cpu/mpc85xx/ddr-gen3.c +++ b/arch/powerpc/cpu/mpc85xx/ddr-gen3.c @@ -15,8 +15,18 @@ #error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL #endif + +/* + * regs has the to-be-set values for DDR controller registers + * ctrl_num is the DDR controller number + * step: 0 goes through the initialization in one pass + * 1 sets registers and returns before enabling controller + * 2 resumes from step 1 and continues to initialize + * Dividing the initialization to two steps to deassert DDR reset signal + * to comply with JEDEC specs for RDIMMs. + */ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num) + unsigned int ctrl_num, int step) { unsigned int i, bus_width; volatile ccsr_ddr_t *ddr; @@ -54,6 +64,9 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, return; } + if (step == 2) + goto step2; + if (regs->ddr_eor) out_be32(&ddr->eor, regs->ddr_eor); #ifdef CONFIG_SYS_FSL_ERRATUM_DDR111_DDR134 @@ -123,10 +136,17 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, out_be32(&ddr->timing_cfg_5, regs->timing_cfg_5); out_be32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl); out_be32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl); +#ifndef CONFIG_SYS_FSL_DDR_EMU + /* + * Skip these two registers if running on emulator + * because emulator doesn't have skew between bytes. + */ + if (regs->ddr_wrlvl_cntl_2) out_be32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2); if (regs->ddr_wrlvl_cntl_3) out_be32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3); +#endif out_be32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr); out_be32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1); @@ -150,6 +170,20 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, out_be32(&ddr->debug[21], 0x24000000); #endif /* CONFIG_SYS_FSL_ERRATUM_DDR_A003474 */ + /* + * For RDIMMs, JEDEC spec requires clocks to be stable before reset is + * deasserted. Clocks start when any chip select is enabled and clock + * control register is set. Because all DDR components are connected to + * one reset signal, this needs to be done in two steps. Step 1 is to + * get the clocks started. Step 2 resumes after reset signal is + * deasserted. + */ + if (step == 1) { + udelay(200); + return; + } + +step2: /* Set, but do not enable the memory */ temp_sdram_cfg = regs->ddr_sdram_cfg; temp_sdram_cfg &= ~(SDRAM_CFG_MEM_EN); diff --git a/arch/powerpc/cpu/mpc85xx/fdt.c b/arch/powerpc/cpu/mpc85xx/fdt.c index cfaa2ed..84bb8fa 100644 --- a/arch/powerpc/cpu/mpc85xx/fdt.c +++ b/arch/powerpc/cpu/mpc85xx/fdt.c @@ -604,8 +604,12 @@ void ft_cpu_setup(void *blob, bd_t *bd) fdt_add_enet_stashing(blob); +#ifndef CONFIG_FSL_TBCLK_EXTRA_DIV +#define CONFIG_FSL_TBCLK_EXTRA_DIV 1 +#endif do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, - "timebase-frequency", get_tbclk(), 1); + "timebase-frequency", get_tbclk() / CONFIG_FSL_TBCLK_EXTRA_DIV, + 1); do_fixup_by_prop_u32(blob, "device_type", "cpu", 4, "bus-frequency", bd->bi_busfreq, 1); get_sys_info(&sysinfo); diff --git a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h index 6de572d..d515b23 100644 --- a/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h +++ b/arch/powerpc/cpu/mpc85xx/fsl_corenet2_serdes.h @@ -9,5 +9,4 @@ int is_serdes_prtcl_valid(int serdes, u32 prtcl); int serdes_lane_enabled(int lane); -enum srds_prtcl serdes_get_prtcl(int serdes, int cfg, int lane); #endif /* __FSL_CORENET2_SERDES_H */ diff --git a/arch/powerpc/cpu/mpc85xx/release.S b/arch/powerpc/cpu/mpc85xx/release.S index 15bbbc1..c15e83b 100644 --- a/arch/powerpc/cpu/mpc85xx/release.S +++ b/arch/powerpc/cpu/mpc85xx/release.S @@ -226,6 +226,21 @@ __secondary_start_page: 2: #endif +#ifdef CONFIG_SYS_FSL_ERRATUM_A005812 + /* + * A-005812 workaround sets bit 32 of SPR 976 for SoCs running in + * write shadow mode. This code should run after other code setting + * DCWS. + */ + mfspr r3,L1CSR2 + andis. r3,r3,(L1CSR2_DCWS)@h + beq 1f + mfspr r3, SPRN_HDBCR0 + oris r3, r3, 0x8000 + mtspr SPRN_HDBCR0, r3 +1: +#endif + #ifdef CONFIG_BACKSIDE_L2_CACHE /* skip L2 setup on P2040/P2040E as they have no L2 */ mfspr r3,SPRN_SVR diff --git a/arch/powerpc/cpu/mpc85xx/start.S b/arch/powerpc/cpu/mpc85xx/start.S index cfc3a60..ad57a9c 100644 --- a/arch/powerpc/cpu/mpc85xx/start.S +++ b/arch/powerpc/cpu/mpc85xx/start.S @@ -33,7 +33,8 @@ #define MINIMAL_SPL #endif -#if !defined(CONFIG_SPL) && !defined(CONFIG_SYS_RAMBOOT) && !defined(CONFIG_SECURE_BOOT) +#if !defined(CONFIG_SPL) && !defined(CONFIG_SYS_RAMBOOT) && \ + !defined(CONFIG_SECURE_BOOT) && !defined(CONFIG_SRIO_PCIE_BOOT_SLAVE) #define NOR_BOOT #endif diff --git a/arch/powerpc/cpu/mpc85xx/t4240_ids.c b/arch/powerpc/cpu/mpc85xx/t4240_ids.c index e173cb5..54c1cfd 100644 --- a/arch/powerpc/cpu/mpc85xx/t4240_ids.c +++ b/arch/powerpc/cpu/mpc85xx/t4240_ids.c @@ -65,8 +65,8 @@ struct qportal_info qp_info[CONFIG_SYS_QMAN_NUM_PORTALS] = { #endif struct srio_liodn_id_table srio_liodn_tbl[] = { - SET_SRIO_LIODN_1(1, 307), - SET_SRIO_LIODN_1(2, 387), + SET_SRIO_LIODN_BASE(1, 307), + SET_SRIO_LIODN_BASE(2, 387), }; int srio_liodn_tbl_sz = ARRAY_SIZE(srio_liodn_tbl); @@ -159,10 +159,10 @@ int sec_liodn_tbl_sz = ARRAY_SIZE(sec_liodn_tbl); #ifdef CONFIG_SYS_DPAA_RMAN struct liodn_id_table rman_liodn_tbl[] = { /* Set RMan block 0-3 liodn offset */ - SET_RMAN_LIODN(0, 678), - SET_RMAN_LIODN(1, 679), - SET_RMAN_LIODN(2, 680), - SET_RMAN_LIODN(3, 681), + SET_RMAN_LIODN(0, 6), + SET_RMAN_LIODN(1, 7), + SET_RMAN_LIODN(2, 8), + SET_RMAN_LIODN(3, 9), }; int rman_liodn_tbl_sz = ARRAY_SIZE(rman_liodn_tbl); #endif diff --git a/arch/powerpc/cpu/mpc86xx/ddr-8641.c b/arch/powerpc/cpu/mpc86xx/ddr-8641.c index 92ba26d..33a91f9 100644 --- a/arch/powerpc/cpu/mpc86xx/ddr-8641.c +++ b/arch/powerpc/cpu/mpc86xx/ddr-8641.c @@ -15,7 +15,7 @@ #endif void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num) + unsigned int ctrl_num, int step) { unsigned int i; volatile ccsr_ddr_t *ddr; diff --git a/arch/powerpc/cpu/mpc8xxx/cpu.c b/arch/powerpc/cpu/mpc8xxx/cpu.c index 7369582..c67be4e 100644 --- a/arch/powerpc/cpu/mpc8xxx/cpu.c +++ b/arch/powerpc/cpu/mpc8xxx/cpu.c @@ -79,6 +79,9 @@ static struct cpu_type cpu_type_list[] = { CPU_TYPE_ENTRY(BSC9131, 9131, 1), CPU_TYPE_ENTRY(BSC9132, 9132, 2), CPU_TYPE_ENTRY(BSC9232, 9232, 2), + CPU_TYPE_ENTRY(C291, C291, 1), + CPU_TYPE_ENTRY(C292, C292, 1), + CPU_TYPE_ENTRY(C293, C293, 1), #elif defined(CONFIG_MPC86xx) CPU_TYPE_ENTRY(8610, 8610, 1), CPU_TYPE_ENTRY(8641, 8641, 2), diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index ff5812d..242eb47 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -364,7 +364,7 @@ static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr, ddr->timing_cfg_3 = (0 | ((ext_pretoact & 0x1) << 28) - | ((ext_acttopre & 0x2) << 24) + | ((ext_acttopre & 0x3) << 24) | ((ext_acttorw & 0x1) << 22) | ((ext_refrec & 0x1F) << 16) | ((ext_caslat & 0x3) << 12) @@ -681,6 +681,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, unsigned int odt_cfg = 0; /* ODT configuration */ unsigned int num_pr; /* Number of posted refreshes */ unsigned int slow = 0; /* DDR will be run less than 1250 */ + unsigned int x4_en = 0; /* x4 DRAM enable */ unsigned int obc_cfg; /* On-The-Fly Burst Chop Cfg */ unsigned int ap_en; /* Address Parity Enable */ unsigned int d_init; /* DRAM data initialization */ @@ -725,6 +726,8 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, ap_en = 0; } + x4_en = popts->x4_en ? 1 : 0; + #if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) /* Use the DDR controller to auto initialize memory. */ d_init = popts->ECC_init_using_memctl; @@ -747,6 +750,7 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, | ((odt_cfg & 0x3) << 21) | ((num_pr & 0xf) << 12) | ((slow & 1) << 11) + | (x4_en << 10) | (qd_en << 9) | (unq_mrs_en << 8) | ((obc_cfg & 0x1) << 6) @@ -1585,8 +1589,8 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, | ((ea & 0xFFF) << 0) /* ending address MSB */ ); } else { - debug("FSLDDR: setting bnds to 0 for inactive CS\n"); - ddr->cs[i].bnds = 0; + /* setting bnds to 0xffffffff for inactive CS */ + ddr->cs[i].bnds = 0xffffffff; } debug("FSLDDR: cs[%d]_bnds = 0x%08x\n", i, ddr->cs[i].bnds); @@ -1638,5 +1642,10 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, set_ddr_sdram_rcw(ddr, popts, common_dimm); +#ifdef CONFIG_SYS_FSL_DDR_EMU + /* disble DDR training for emulator */ + ddr->debug[2] = 0x00000400; + ddr->debug[4] = 0xff800000; +#endif return check_fsl_memctl_config_regs(ddr); } diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h index 4dd55fc..c173a5a 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h @@ -96,7 +96,7 @@ unsigned int check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr); /* processor specific function */ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num); + unsigned int ctrl_num, int step); /* board specific function */ int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c index 3e7c269..b67158c 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c @@ -129,6 +129,7 @@ ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, pdimm->ec_sdram_width = 0; pdimm->data_width = pdimm->primary_sdram_width + pdimm->ec_sdram_width; + pdimm->device_width = 1 << ((spd->organization & 0x7) + 2); /* These are the types defined by the JEDEC DDR3 SPD spec */ pdimm->mirrored_dimm = 0; diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c index 1ed6c77..260fce5 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c @@ -205,6 +205,7 @@ static void fsl_ddr_dimm_parameters_edit(fsl_ddr_info_t *pinfo, DIMM_PARM(primary_sdram_width), DIMM_PARM(ec_sdram_width), DIMM_PARM(registered_dimm), + DIMM_PARM(device_width), DIMM_PARM(n_row_addr), DIMM_PARM(n_col_addr), @@ -263,6 +264,7 @@ static void print_dimm_parameters(const dimm_params_t *pdimm) DIMM_PARM(primary_sdram_width), DIMM_PARM(ec_sdram_width), DIMM_PARM(registered_dimm), + DIMM_PARM(device_width), DIMM_PARM(n_row_addr), DIMM_PARM(n_col_addr), @@ -443,6 +445,7 @@ static void fsl_ddr_options_edit(fsl_ddr_info_t *pinfo, CTRL_OPTIONS(twoT_en), CTRL_OPTIONS(threeT_en), CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(x4_en), CTRL_OPTIONS(bstopre), CTRL_OPTIONS(wrlvl_override), CTRL_OPTIONS(wrlvl_sample), @@ -687,6 +690,7 @@ static void print_memctl_options(const memctl_options_t *popts) CTRL_OPTIONS(threeT_en), CTRL_OPTIONS(registered_dimm_en), CTRL_OPTIONS(ap_en), + CTRL_OPTIONS(x4_en), CTRL_OPTIONS(bstopre), CTRL_OPTIONS(wrlvl_override), CTRL_OPTIONS(wrlvl_sample), diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index 7a8636d..9f4f253 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -25,10 +25,6 @@ void fsl_ddr_set_lawbar( unsigned int ctrl_num); void fsl_ddr_set_intl3r(const unsigned int granule_size); -/* processor specific function */ -extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num); - #if defined(SPD_EEPROM_ADDRESS) || \ defined(SPD_EEPROM_ADDRESS1) || defined(SPD_EEPROM_ADDRESS2) || \ defined(SPD_EEPROM_ADDRESS3) || defined(SPD_EEPROM_ADDRESS4) @@ -365,9 +361,11 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, { unsigned int i, j; unsigned long long total_mem = 0; + int assert_reset; fsl_ddr_cfg_regs_t *ddr_reg = pinfo->fsl_ddr_config_reg; common_timing_params_t *timing_params = pinfo->common_timing_params; + assert_reset = board_need_mem_reset(); /* data bus width capacity adjust shift amount */ unsigned int dbw_capacity_adjust[CONFIG_NUM_DDR_CONTROLLERS]; @@ -462,7 +460,20 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, timing_params[i].all_DIMMs_registered, &pinfo->memctl_opts[i], pinfo->dimm_params[i], i); + /* + * For RDIMMs, JEDEC spec requires clocks to be stable + * before reset signal is deasserted. For the boards + * using fixed parameters, this function should be + * be called from board init file. + */ + if (timing_params[i].all_DIMMs_registered) + assert_reset = 1; } + if (assert_reset) { + debug("Asserting mem reset\n"); + board_assert_mem_reset(); + } + case STEP_ASSIGN_ADDRESSES: /* STEP 5: Assign addresses to chip selects */ check_interleaving_options(pinfo); @@ -504,7 +515,13 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, fsl_ddr_cfg_regs_t *reg = &ddr_reg[i]; if (reg->cs[j].config & 0x80000000) { unsigned int end; - end = reg->cs[j].bnds & 0xFFF; + /* + * 0xfffffff is a special value we put + * for unused bnds + */ + if (reg->cs[j].bnds == 0xffffffff) + continue; + end = reg->cs[j].bnds & 0xffff; if (end > max_end) { max_end = end; } @@ -531,6 +548,7 @@ phys_size_t fsl_ddr_sdram(void) unsigned int law_memctl = LAW_TRGT_IF_DDR_1; unsigned long long total_memory; fsl_ddr_info_t info; + int deassert_reset; /* Reset info structure. */ memset(&info, 0, sizeof(fsl_ddr_info_t)); @@ -559,7 +577,21 @@ phys_size_t fsl_ddr_sdram(void) } } - /* Program configuration registers. */ + /* + * Program configuration registers. + * JEDEC specs requires clocks to be stable before deasserting reset + * for RDIMMs. Clocks start after chip select is enabled and clock + * control register is set. During step 1, all controllers have their + * registers set but not enabled. Step 2 proceeds after deasserting + * reset through board FPGA or GPIO. + * For non-registered DIMMs, initialization can go through but it is + * also OK to follow the same flow. + */ + deassert_reset = board_need_mem_reset(); + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (info.common_timing_params[i].all_DIMMs_registered) + deassert_reset = 1; + } for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { debug("Programming controller %u\n", i); if (info.common_timing_params[i].ndimms_present == 0) { @@ -567,8 +599,22 @@ phys_size_t fsl_ddr_sdram(void) "skipping programming\n", i); continue; } - - fsl_ddr_set_memctl_regs(&(info.fsl_ddr_config_reg[i]), i); + /* + * The following call with step = 1 returns before enabling + * the controller. It has to finish with step = 2 later. + */ + fsl_ddr_set_memctl_regs(&(info.fsl_ddr_config_reg[i]), i, + deassert_reset ? 1 : 0); + } + if (deassert_reset) { + /* Use board FPGA or GPIO to deassert reset signal */ + debug("Deasserting mem reset\n"); + board_deassert_mem_reset(); + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + /* Call with step = 2 to continue initialization */ + fsl_ddr_set_memctl_regs(&(info.fsl_ddr_config_reg[i]), + i, 2); + } } /* program LAWs */ diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c index 26369e0..30cdca4 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/options.c @@ -700,6 +700,8 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, } #endif + popts->x4_en = (pdimm[0].device_width == 4) ? 1 : 0; + /* Choose burst length. */ #if defined(CONFIG_FSL_DDR3) #if defined(CONFIG_E500MC) |