arm: omap3: Add SPL support to tao3530
Add SPL support for the Technexion TAO3530 SOM to replace
x-loader. Tested with the Thunder baseboard. Currently this is
only tested with the TAO3530 SOM revision (Ax/Bx).
Tested by booting via MMC and NAND.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de>
Cc: Tom Rini <trini@ti.com>
diff --git a/board/technexion/tao3530/tao3530.c b/board/technexion/tao3530/tao3530.c
index 0668c25..9268d38 100644
--- a/board/technexion/tao3530/tao3530.c
+++ b/board/technexion/tao3530/tao3530.c
@@ -67,6 +67,31 @@
return ret;
}
+#ifdef CONFIG_SPL_BUILD
+/*
+ * Routine: get_board_mem_timings
+ * Description: If we use SPL then there is no x-loader nor config header
+ * so we have to setup the DDR timings ourself on both banks.
+ */
+void get_board_mem_timings(struct board_sdrc_timings *timings)
+{
+ if (tao3530_revision() < 3) {
+ /* 256MB / Bank */
+ timings->mcfg = MCFG(256 << 20, 14); /* RAS-width 14 */
+ timings->ctrla = HYNIX_V_ACTIMA_165;
+ timings->ctrlb = HYNIX_V_ACTIMB_165;
+ } else {
+ /* 128MB / Bank */
+ timings->mcfg = MCFG(128 << 20, 13); /* RAS-width 13 */
+ timings->ctrla = MICRON_V_ACTIMA_165;
+ timings->ctrlb = MICRON_V_ACTIMB_165;
+ }
+
+ timings->mr = MICRON_V_MR_165;
+ timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
+}
+#endif
+
/*
* Routine: board_init
* Description: Early hardware init.
@@ -134,7 +159,7 @@
MUX_TAO3530();
}
-#ifdef CONFIG_GENERIC_MMC
+#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
int board_mmc_init(bd_t *bis)
{
omap_mmc_init(0, 0, 0, -1, -1);