ARM: OMAP4: Panda: rework DMM logic

Part of DMM logic is reuse from commit
47a4bea6af77b01d59a410d09a4c34b2dd14cf50 ("ARM: omap4: Update sdram
setting for panda rev A6") Which broke SDP4430 with ES2.3 (uses old
DDR).

So, to maintain support for newer DDR used in Panda ES rev B3, we
should, in addition to the commit
675cc77a3ae45e8b0ec17128563264d4a509f628 ("ARM:OMAP4+: panda-es: Support
Rev B3 Elpida DDR2 RAM"), DDR timings, also do DMM configuration
specific to Panda.

Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm/include/asm/arch-omap4/sys_proto.h b/arch/arm/include/asm/arch-omap4/sys_proto.h
index 83d858f305c4b5dde57e13aee77cae7252aab786..e19975efaf50f2e84c4e3accdef0fe103af275e6 100644 (file)
--- a/arch/arm/include/asm/arch-omap4/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap4/sys_proto.h
@@ -22,6 +22,9 @@ extern const struct emif_regs emif_regs_elpida_200_mhz_2cs;
 extern const struct emif_regs emif_regs_elpida_380_mhz_1cs;
 extern const struct emif_regs emif_regs_elpida_400_mhz_1cs;
 extern const struct emif_regs emif_regs_elpida_400_mhz_2cs;
+extern const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2;
+extern const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2;
+extern const struct dmm_lisa_map_regs ma_lisa_map_2G_x_2_x_2;
 struct omap_sysinfo {
        char *board_string;
 };

diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c
index 16368cbb0d9e4cf31b3dacd1cc1259e83f2c290d..783ba3576f792d906644cd99b070c2dbbabcbe15 100644 (file)
--- a/board/ti/panda/panda.c
+++ b/board/ti/panda/panda.c
@@ -180,6 +180,22 @@ void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
        else
                *regs = &emif_regs_elpida_400_mhz_1cs;
 }
+
+void emif_get_dmm_regs(const struct dmm_lisa_map_regs
+                                               **dmm_lisa_regs)
+{
+       u32 omap_rev = omap_revision();
+
+       if (omap_rev == OMAP4430_ES1_0)
+               *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
+       else if (omap_rev == OMAP4430_ES2_3)
+               *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
+       else if (omap_rev < OMAP4460_ES1_0)
+               *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
+       else
+               *dmm_lisa_regs = &ma_lisa_map_2G_x_2_x_2;
+}
+
 #endif
 
 /**