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ddr: socfpga: Fix IO in Arria10 DDR driver

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The Altera Arria10 DDR driver was using constants in a few places
instead of reading registers associated with those constants, fix
this.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <chin.liang.see@intel.com>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Cc: Tien Fong Chee <tien.fong.chee@intel.com>
This commit is contained in:
Marek Vasut 2019-03-05 18:37:02 +01:00
parent 532a54e652
commit 71fc4825f7
1 changed files with 3 additions and 3 deletions
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6
drivers/ddr/altera/sdram_arria10.c
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@ -304,7 +304,7 @@ static void sdram_mmr_init(void)
* bit[9:6] = Minor Release #
* bit[14:10] = Major Release #
*/
if ((socfpga_io48_mmr_base->niosreserve1 >> 6) & 0x1FF) {
if ((readl(&socfpga_io48_mmr_base->niosreserve1) >> 6) & 0x1FF) {
update_value = readl(&socfpga_io48_mmr_base->niosreserve0);
writel(((update_value & 0xFF) >> 5),
&socfpga_ecc_hmc_base->ddrioctrl);
@ -394,7 +394,7 @@ static void sdram_mmr_init(void)
caltim0_cfg_act_to_rdwr -
(ctrlcfg0_cfg_ctrl_burst_len >> 2));
io48_value = ((((socfpga_io48_mmr_base->dramtiming0 &
io48_value = ((((readl(&socfpga_io48_mmr_base->dramtiming0) &
ALT_IO48_DRAMTIME_MEM_READ_LATENCY_MASK) + 2 + 15 +
(ctrlcfg0_cfg_ctrl_burst_len >> 1)) >> 1) -
/* Up to here was in memory cycles so divide by 2 */
@ -424,7 +424,7 @@ static void sdram_mmr_init(void)
&socfpga_noc_ddr_scheduler_base->ddr_t_main_scheduler_ddrmode);
/* Configure the read latency [0xFFD12414] */
writel(((socfpga_io48_mmr_base->dramtiming0 &
writel(((readl(&socfpga_io48_mmr_base->dramtiming0) &
ALT_IO48_DRAMTIME_MEM_READ_LATENCY_MASK) >> 1) +
DDR_READ_LATENCY_DELAY,
&socfpga_noc_ddr_scheduler_base->