From: Lubomir Popov lpopov@mm-sol.com
OMAP4470 SDP SoM has EDB8164B3PF PoP memory on board. This memory has 4Gb x 2CS = 8Gb configuration. Add configuration for runtime calculation and precalculated cases.
Patch is based on a draft Lubomir's patch [1].
[1] http://lists.denx.de/pipermail/u-boot/2013-April/150851.html
Signed-off-by: Lubomir Popov lpopov@mm-sol.com [taras@ti.com: cleaned up patch and fixed precalculated values] Signed-off-by: Taras Kondratiuk taras@ti.com --- arch/arm/cpu/armv7/omap4/sdram_elpida.c | 41 +++++++++++++++++++++++++------ 1 file changed, 34 insertions(+), 7 deletions(-)
diff --git a/arch/arm/cpu/armv7/omap4/sdram_elpida.c b/arch/arm/cpu/armv7/omap4/sdram_elpida.c index d76dde7..67a7926 100644 --- a/arch/arm/cpu/armv7/omap4/sdram_elpida.c +++ b/arch/arm/cpu/armv7/omap4/sdram_elpida.c @@ -60,6 +60,20 @@ static const struct emif_regs emif_regs_elpida_380_mhz_1cs = { .emif_ddr_phy_ctlr_1 = 0x049ff418 };
+const struct emif_regs emif_regs_elpida_400_mhz_1cs = { + .sdram_config_init = 0x80800eb2, + .sdram_config = 0x80801ab2, + .ref_ctrl = 0x00000618, + .sdram_tim1 = 0x10eb0662, + .sdram_tim2 = 0x20370dd2, + .sdram_tim3 = 0x00b1c33f, + .read_idle_ctrl = 0x000501ff, + .zq_config = 0x500b3215, + .temp_alert_config = 0x58016893, + .emif_ddr_phy_ctlr_1_init = 0x049ffff5, + .emif_ddr_phy_ctlr_1 = 0x049ff418 +}; + const struct emif_regs emif_regs_elpida_400_mhz_2cs = { .sdram_config_init = 0x80000eb9, .sdram_config = 0x80001ab9, @@ -107,8 +121,10 @@ static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs) *regs = &emif_regs_elpida_380_mhz_1cs; else if (omap4_rev == OMAP4430_ES2_0) *regs = &emif_regs_elpida_200_mhz_2cs; - else + else if (omap4_rev < OMAP4470_ES1_0) *regs = &emif_regs_elpida_400_mhz_2cs; + else + *regs = &emif_regs_elpida_400_mhz_1cs; } void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs) __attribute__((weak, alias("emif_get_reg_dump_sdp"))); @@ -138,20 +154,31 @@ static const struct lpddr2_device_details elpida_2G_S4_details = { .manufacturer = LPDDR2_MANUFACTURER_ELPIDA };
+static const struct lpddr2_device_details elpida_4G_S4_details = { + .type = LPDDR2_TYPE_S4, + .density = LPDDR2_DENSITY_4Gb, + .io_width = LPDDR2_IO_WIDTH_32, + .manufacturer = LPDDR2_MANUFACTURER_ELPIDA +}; + struct lpddr2_device_details *emif_get_device_details_sdp(u32 emif_nr, u8 cs, struct lpddr2_device_details *lpddr2_dev_details) { u32 omap_rev = omap_revision();
/* EMIF1 & EMIF2 have identical configuration */ - if ((omap_rev == OMAP4430_ES1_0) && (cs == CS1)) { - /* Nothing connected on CS1 for ES1.0 */ + if (((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0)) + && (cs == CS1)) { + /* Nothing connected on CS1 for 4430/4470 ES1.0 */ return NULL; - } else { - /* In all other cases Elpida 2G device */ + } else if (omap_rev < OMAP4470_ES1_0) { + /* In all other 4430/4460 cases Elpida 2G device */ *lpddr2_dev_details = elpida_2G_S4_details; - return lpddr2_dev_details; + } else { + /* 4470: 4G device */ + *lpddr2_dev_details = elpida_4G_S4_details; } + return lpddr2_dev_details; }
struct lpddr2_device_details *emif_get_device_details(u32 emif_nr, u8 cs, @@ -265,7 +292,7 @@ void emif_get_device_timings_sdp(u32 emif_nr, /* Identical devices on EMIF1 & EMIF2 */ *cs0_device_timings = &elpida_2G_S4_timings;
- if (omap_rev == OMAP4430_ES1_0) + if ((omap_rev == OMAP4430_ES1_0) || (omap_rev == OMAP4470_ES1_0)) *cs1_device_timings = NULL; else *cs1_device_timings = &elpida_2G_S4_timings;