diff options
Diffstat (limited to 'board/phytec/pcm052/pcm052.c')
| -rw-r--r-- | board/phytec/pcm052/pcm052.c | 206 |
1 files changed, 154 insertions, 52 deletions
diff --git a/board/phytec/pcm052/pcm052.c b/board/phytec/pcm052/pcm052.c index e4f61e1b92..e75ff4fc3a 100644 --- a/board/phytec/pcm052/pcm052.c +++ b/board/phytec/pcm052/pcm052.c @@ -152,57 +152,6 @@ static struct ddrmc_phy_setting pcm052_phy_settings[] = { int dram_init(void) { - static const struct ddr3_jedec_timings pcm052_ddr_timings = { - .tinit = 5, - .trst_pwron = 80000, - .cke_inactive = 200000, - .wrlat = 5, - .caslat_lin = 12, - .trc = 6, - .trrd = 4, - .tccd = 4, - .tbst_int_interval = 4, - .tfaw = 18, - .trp = 6, - .twtr = 4, - .tras_min = 15, - .tmrd = 4, - .trtp = 4, - .tras_max = 14040, - .tmod = 12, - .tckesr = 4, - .tcke = 3, - .trcd_int = 6, - .tras_lockout = 1, - .tdal = 10, - .bstlen = 3, - .tdll = 512, - .trp_ab = 6, - .tref = 1542, - .trfc = 64, - .tref_int = 5, - .tpdex = 3, - .txpdll = 10, - .txsnr = 68, - .txsr = 506, - .cksrx = 5, - .cksre = 5, - .freq_chg_en = 1, - .zqcl = 256, - .zqinit = 512, - .zqcs = 64, - .ref_per_zq = 64, - .zqcs_rotate = 1, - .aprebit = 10, - .cmd_age_cnt = 255, - .age_cnt = 255, - .q_fullness = 0, - .odt_rd_mapcs0 = 1, - .odt_wr_mapcs0 = 1, - .wlmrd = 40, - .wldqsen = 25, - }; - static const iomux_v3_cfg_t pcm052_pads[] = { PCM052_VF610_PAD_DDR_A15__DDR_A_15, PCM052_VF610_PAD_DDR_A14__DDR_A_14, @@ -256,11 +205,126 @@ int dram_init(void) PCM052_VF610_PAD_DDR_RESETB, }; - imx_iomux_v3_setup_multiple_pads(pcm052_pads, ARRAY_SIZE(pcm052_pads)); +#if defined(CONFIG_TARGET_PCM052) + + static const struct ddr3_jedec_timings pcm052_ddr_timings = { + .tinit = 5, + .trst_pwron = 80000, + .cke_inactive = 200000, + .wrlat = 5, + .caslat_lin = 12, + .trc = 6, + .trrd = 4, + .tccd = 4, + .tbst_int_interval = 4, + .tfaw = 18, + .trp = 6, + .twtr = 4, + .tras_min = 15, + .tmrd = 4, + .trtp = 4, + .tras_max = 14040, + .tmod = 12, + .tckesr = 4, + .tcke = 3, + .trcd_int = 6, + .tras_lockout = 1, + .tdal = 10, + .bstlen = 3, + .tdll = 512, + .trp_ab = 6, + .tref = 1542, + .trfc = 64, + .tref_int = 5, + .tpdex = 3, + .txpdll = 10, + .txsnr = 68, + .txsr = 506, + .cksrx = 5, + .cksre = 5, + .freq_chg_en = 1, + .zqcl = 256, + .zqinit = 512, + .zqcs = 64, + .ref_per_zq = 64, + .zqcs_rotate = 1, + .aprebit = 10, + .cmd_age_cnt = 255, + .age_cnt = 255, + .q_fullness = 0, + .odt_rd_mapcs0 = 1, + .odt_wr_mapcs0 = 1, + .wlmrd = 40, + .wldqsen = 25, + }; ddrmc_ctrl_init_ddr3(&pcm052_ddr_timings, pcm052_cr_settings, pcm052_phy_settings, 1, 2); +#elif defined(CONFIG_TARGET_BK4R1) + + static const struct ddr3_jedec_timings pcm052_ddr_timings = { + .tinit = 5, + .trst_pwron = 80000, + .cke_inactive = 200000, + .wrlat = 5, + .caslat_lin = 12, + .trc = 6, + .trrd = 4, + .tccd = 4, + .tbst_int_interval = 0, + .tfaw = 16, + .trp = 6, + .twtr = 4, + .tras_min = 15, + .tmrd = 4, + .trtp = 4, + .tras_max = 28080, + .tmod = 12, + .tckesr = 4, + .tcke = 3, + .trcd_int = 6, + .tras_lockout = 1, + .tdal = 12, + .bstlen = 3, + .tdll = 512, + .trp_ab = 6, + .tref = 3120, + .trfc = 104, + .tref_int = 0, + .tpdex = 3, + .txpdll = 10, + .txsnr = 108, + .txsr = 512, + .cksrx = 5, + .cksre = 5, + .freq_chg_en = 1, + .zqcl = 256, + .zqinit = 512, + .zqcs = 64, + .ref_per_zq = 64, + .zqcs_rotate = 1, + .aprebit = 10, + .cmd_age_cnt = 255, + .age_cnt = 255, + .q_fullness = 0, + .odt_rd_mapcs0 = 1, + .odt_wr_mapcs0 = 1, + .wlmrd = 40, + .wldqsen = 25, + }; + + ddrmc_ctrl_init_ddr3(&pcm052_ddr_timings, pcm052_cr_settings, + pcm052_phy_settings, 1, 1); + +#else /* Unknown PCM052 variant */ + +#error DDR characteristics undefined for this target. Please define them. + +#endif + + imx_iomux_v3_setup_multiple_pads(pcm052_pads, ARRAY_SIZE(pcm052_pads)); + gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); return 0; @@ -513,3 +577,41 @@ int checkboard(void) return 0; } + +static int do_m4go(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + ulong addr; + + /* Consume 'm4go' */ + argc--; argv++; + + /* + * Parse provided address - default to load_addr in case not provided. + */ + + if (argc) + addr = simple_strtoul(argv[0], NULL, 16); + else + addr = load_addr; + + /* + * Write boot address in PERSISTENT_ENTRY1[31:0] aka SRC_GPR2[31:0] + */ + writel(addr + 0x401, 0x4006E028); + + /* + * Start secondary processor by enabling its clock + */ + writel(0x15a5a, 0x4006B08C); + + return 1; +} + +U_BOOT_CMD( + m4go, 2 /* one arg max */, 1 /* repeatable */, do_m4go, + "start the secondary Cortex-M4 from scatter file image", + "[<addr>]\n" + " - start secondary Cortex-M4 core using a scatter file image\n" + "The argument needs to be a scatter file\n" +); |