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Commit 866435866402ad740b09efccf79d19e420f91114

Authored by Anson Huang
1 parent a9289e4c1b
Exists in smarc-m6.0.1_2.1.0-ga

MLK-12658 imx: adjust POR_B setting on i.MX6ULL 

Adjust POR_B settings on i.MX6ULL according to design
team's suggestion:

2'b00 :  always PUP100K
2'b01 :  PUP100K when PMIC_ON_REQ || SOC_NOT_FAIL
2'b10 :  always disable PUP100K
2'b11 :  PDN100K when SOC_FAIL, PUP100K when SOC_NOT_FAIL -- recommended setting

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>

Showing 1 changed file with 13 additions and 0 deletions Side-by-side Diff

arch/arm/cpu/armv7/mx6/soc.c
Diff comments   View file @ 8664358
... ... @@ -489,6 +489,19 @@
489 489 }
490 490 #endif
491 491  
  492 +#ifdef CONFIG_MX6ULL
  493 + /*
  494 + * GPBIT[1:0] is suggested to set to 2'b11:
  495 + * 2'b00 : always PUP100K
  496 + * 2'b01 : PUP100K when PMIC_ON_REQ or SOC_NOT_FAIL
  497 + * 2'b10 : always disable PUP100K
  498 + * 2'b11 : PDN100K when SOC_FAIL, PUP100K when SOC_NOT_FAIL
  499 + * register offset is different from i.MX6UL, since
  500 + * i.MX6UL is fixed by ECO.
  501 + */
  502 + writel(readl(SNVS_LP_BASE_ADDR) | 0x3, SNVS_LP_BASE_ADDR);
  503 +#endif
  504 +
492 505 /* Set perclk to source from OSC 24MHz */
493 506 #if defined(CONFIG_MX6SL)
494 507 set_preclk_from_osc();