diff options
Diffstat (limited to 'arch/arm/cpu/armv7/omap4/emif.c')
| -rw-r--r-- | arch/arm/cpu/armv7/omap4/emif.c | 47 |
1 files changed, 8 insertions, 39 deletions
diff --git a/arch/arm/cpu/armv7/omap4/emif.c b/arch/arm/cpu/armv7/omap4/emif.c index 487ec4211..8c4646498 100644 --- a/arch/arm/cpu/armv7/omap4/emif.c +++ b/arch/arm/cpu/armv7/omap4/emif.c @@ -963,10 +963,11 @@ static u8 is_lpddr2_sdram_present(u32 base, u32 cs, return 1; } -static struct lpddr2_device_details *get_lpddr2_details(u32 base, u8 cs, +struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs, struct lpddr2_device_details *lpddr2_dev_details) { u32 phy; + u32 base = (emif_nr == 1) ? OMAP44XX_EMIF1 : OMAP44XX_EMIF2; struct emif_reg_struct *emif = (struct emif_reg_struct *)base; if (!lpddr2_dev_details) @@ -985,40 +986,6 @@ static struct lpddr2_device_details *get_lpddr2_details(u32 base, u8 cs, return lpddr2_dev_details; } - -void emif_get_device_details(u32 emif_nr, - struct lpddr2_device_details *cs0_device_details, - struct lpddr2_device_details *cs1_device_details) -{ - u32 base = (emif_nr == 1) ? OMAP44XX_EMIF1 : OMAP44XX_EMIF2; - - if (running_from_sdram()) { - /* - * We can not do automatic discovery running from SDRAM - * Most likely we came here by mistake. Indicate error - * by returning NULL - */ - cs0_device_details = NULL; - cs1_device_details = NULL; - } else { - /* - * Automatically find the device details: - * - * Reset the PHY after each call to get_lpddr2_details(). - * If there is nothing connected to a given chip select - * (typically CS1) mode register reads will mess up with - * the PHY state and subsequent initialization won't work. - * PHY reset brings back PHY to a good state. - */ - cs0_device_details = - get_lpddr2_details(base, CS0, cs0_device_details); - emif_reset_phy(base); - - cs1_device_details = - get_lpddr2_details(base, CS1, cs1_device_details); - emif_reset_phy(base); - } -} #endif /* CONFIG_SYS_AUTOMATIC_SDRAM_DETECTION */ static void do_sdram_init(u32 base) @@ -1051,10 +1018,12 @@ static void do_sdram_init(u32 base) * - Obtained from user otherwise */ struct lpddr2_device_details cs0_dev_details, cs1_dev_details; - emif_get_device_details(emif_nr, &cs0_dev_details, - &cs1_dev_details); - dev_details.cs0_device_details = &cs0_dev_details; - dev_details.cs1_device_details = &cs1_dev_details; + emif_reset_phy(base); + dev_details.cs0_device_details = emif_get_device_details(base, CS0, + &cs0_dev_details); + dev_details.cs1_device_details = emif_get_device_details(base, CS1, + &cs1_dev_details); + emif_reset_phy(base); /* Return if no devices on this EMIF */ if (!dev_details.cs0_device_details && |