diff options
Diffstat (limited to 'drivers/ddr/altera')
| -rw-r--r-- | drivers/ddr/altera/sequencer.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/ddr/altera/sequencer.c b/drivers/ddr/altera/sequencer.c index 066d7f6568..baa6868c2d 100644 --- a/drivers/ddr/altera/sequencer.c +++ b/drivers/ddr/altera/sequencer.c @@ -453,21 +453,33 @@ static void scc_mgr_set_oct_out1_delay(const u32 write_group, const u32 delay) scc_mgr_set(SCC_MGR_OCT_OUT1_DELAY_OFFSET, base + i, delay); } +/** + * scc_mgr_set_hhp_extras() - Set HHP extras. + * + * Load the fixed setting in the SCC manager HHP extras. + */ static void scc_mgr_set_hhp_extras(void) { /* * Load the fixed setting in the SCC manager - * bits: 0:0 = 1'b1 - dqs bypass - * bits: 1:1 = 1'b1 - dq bypass - * bits: 4:2 = 3'b001 - rfifo_mode - * bits: 6:5 = 2'b01 - rfifo clock_select - * bits: 7:7 = 1'b0 - separate gating from ungating setting - * bits: 8:8 = 1'b0 - separate OE from Output delay setting + * bits: 0:0 = 1'b1 - DQS bypass + * bits: 1:1 = 1'b1 - DQ bypass + * bits: 4:2 = 3'b001 - rfifo_mode + * bits: 6:5 = 2'b01 - rfifo clock_select + * bits: 7:7 = 1'b0 - separate gating from ungating setting + * bits: 8:8 = 1'b0 - separate OE from Output delay setting */ - uint32_t value = (0<<8) | (0<<7) | (1<<5) | (1<<2) | (1<<1) | (1<<0); - uint32_t addr = SDR_PHYGRP_SCCGRP_ADDRESS | SCC_MGR_HHP_GLOBALS_OFFSET; + const u32 value = (0 << 8) | (0 << 7) | (1 << 5) | + (1 << 2) | (1 << 1) | (1 << 0); + const u32 addr = SDR_PHYGRP_SCCGRP_ADDRESS | + SCC_MGR_HHP_GLOBALS_OFFSET | + SCC_MGR_HHP_EXTRAS_OFFSET; - writel(value, addr + SCC_MGR_HHP_EXTRAS_OFFSET); + debug_cond(DLEVEL == 1, "%s:%d Setting HHP Extras\n", + __func__, __LINE__); + writel(value, addr); + debug_cond(DLEVEL == 1, "%s:%d Done Setting HHP Extras\n", + __func__, __LINE__); } /* @@ -516,13 +528,8 @@ static void scc_mgr_zero_all(void) static void scc_set_bypass_mode(const u32 write_group) { /* Only needed once to set all groups, pins, DQ, DQS, DM. */ - if (write_group == 0) { - debug_cond(DLEVEL == 1, "%s:%d Setting HHP Extras\n", __func__, - __LINE__); + if (write_group == 0) scc_mgr_set_hhp_extras(); - debug_cond(DLEVEL == 1, "%s:%d Done Setting HHP Extras\n", - __func__, __LINE__); - } /* Multicast to all DQ enables. */ writel(0xff, &sdr_scc_mgr->dq_ena); |