drivers/ddr/fsl: Update clk_adjust of sdram_clk_cntl
authorShengzhou Liu <Shengzhou.Liu@nxp.com>
Wed, 4 May 2016 02:20:21 +0000 (10:20 +0800)
committerYork Sun <york.sun@nxp.com>
Fri, 3 Jun 2016 21:06:35 +0000 (14:06 -0700)
The clk_adjust is of SDRAM_CLK_CNTL[5:8] 4-bits on MPC85xx and P-series,
but is of SDRAM_CLK_CNTL[5:9] 5-bits on T-series and LS-series SoCs.
We should update it to adapt the case that clk_adjust is odd data.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
drivers/ddr/fsl/ctrl_regs.c

index 9073917914e9630a77d4df47870c248357b0f53d..b26269c14d59d1bd4f5744d05c411c572fbcba6e 100644 (file)
@@ -1835,10 +1835,17 @@ static void set_ddr_sdram_clk_cntl(fsl_ddr_cfg_regs_t *ddr,
        /* Per FSL Application Note: AN2805 */
        ss_en = 1;
 #endif
-       clk_adjust = popts->clk_adjust;
+       if (fsl_ddr_get_version(0) >= 0x40701) {
+               /* clk_adjust in 5-bits on T-series and LS-series */
+               clk_adjust = (popts->clk_adjust & 0x1F) << 22;
+       } else {
+               /* clk_adjust in 4-bits on earlier MPC85xx and P-series */
+               clk_adjust = (popts->clk_adjust & 0xF) << 23;
+       }
+
        ddr->ddr_sdram_clk_cntl = (0
                                   | ((ss_en & 0x1) << 31)
-                                  | ((clk_adjust & 0xF) << 23)
+                                  | clk_adjust
                                   );
        debug("FSLDDR: clk_cntl = 0x%08x\n", ddr->ddr_sdram_clk_cntl);
 }