[U-Boot] [PATCH v3 39/60] sbc8349: Remove SDRAM functionality

From: Mario Six <mario.six@gdsys.cc>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 39/60] sbc8349: Remove SDRAM functionality
Date: Mon, 21 Jan 2019 09:18:02 +0100	[thread overview]
Message-ID: <20190121081823.6429-39-mario.six@gdsys.cc> (raw)
In-Reply-To: <20190121081823.6429-1-mario.six@gdsys.cc>

The MPC8349EMDS configuration was the basis for the sbc8349, so it also
contains its SDRAM option.

Since
* the SDRAM has to be soldered onto the board,
* the sbc8349 never used the support, and
* the support never worked (see previous patch fixing it),

we can assume that the support on the sbc8349 is an artifact created by
copying the MPC8349EMDS config wholesome.

Hence, instead of creating a separate sbc8349 config that supports
SDRAM, we can remove the SDRAM option for this board.

Should it be needed in the future, it can be copied from the new
MPC8349EMDS_SDRAM board.

Signed-off-by: Mario Six <mario.six@gdsys.cc>

---

v2 -> v3:
No changes

v1 -> v2:
No changes

---
 include/configs/sbc8349.h | 67 ---------------------------------------
 1 file changed, 67 deletions(-)

diff --git a/include/configs/sbc8349.h b/include/configs/sbc8349.h
index 09cdb7c1a8a..42a1e1682d2 100644
--- a/include/configs/sbc8349.h
+++ b/include/configs/sbc8349.h
@@ -142,73 +142,6 @@
 
 #undef CONFIG_SYS_LB_SDRAM	/* if board has SDRAM on local bus */
 
-#ifdef CONFIG_SYS_LB_SDRAM
-/* Local bus BR2, OR2 definition for SDRAM if soldered on the board*/
-/*
- * Base Register 2 and Option Register 2 configure SDRAM.
- * The SDRAM base address, CONFIG_SYS_LBC_SDRAM_BASE, is 0xf0000000.
- *
- * For BR2, need:
- *    Base address of 0xf0000000 = BR[0:16] = 1111 0000 0000 0000 0
- *    port-size = 32-bits = BR2[19:20] = 11
- *    no parity checking = BR2[21:22] = 00
- *    SDRAM for MSEL = BR2[24:26] = 011
- *    Valid = BR[31] = 1
- *
- * 0    4    8    12   16   20   24   28
- * 1111 0000 0000 0000 0001 1000 0110 0001 = F0001861
- */
-
-#define CONFIG_SYS_BR2_PRELIM		(CONFIG_SYS_LBC_SDRAM_BASE \
-					| BR_PS_32 \
-					| BR_MS_SDRAM \
-					| BR_V)
-					/* 0xF0001861 */
-/*
- * The SDRAM size in MB, CONFIG_SYS_LBC_SDRAM_SIZE, is 64.
- *
- * For OR2, need:
- *    64MB mask for AM, OR2[0:7] = 1111 1100
- *                 XAM, OR2[17:18] = 11
- *    9 columns OR2[19-21] = 010
- *    13 rows   OR2[23-25] = 100
- *    EAD set for extra time OR[31] = 1
- *
- * 0    4    8    12   16   20   24   28
- * 1111 1100 0000 0000 0110 1001 0000 0001 = FC006901
- */
-
-#define CONFIG_SYS_OR2_PRELIM	(OR_AM_64MB \
-			| OR_SDRAM_XAM \
-			| ((9 - OR_SDRAM_MIN_COLS) << OR_SDRAM_COLS_SHIFT) \
-			| ((13 - OR_SDRAM_MIN_ROWS) << OR_SDRAM_ROWS_SHIFT) \
-			| OR_SDRAM_EAD)
-			/* 0xFC006901 */
-
-				/* LB sdram refresh timer, about 6us */
-#define CONFIG_SYS_LBC_LSRT	0x32000000
-				/* LB refresh timer prescal, 266MHz/32 */
-#define CONFIG_SYS_LBC_MRTPR	0x20000000
-
-#define CONFIG_SYS_LBC_LSDMR_COMMON	(LSDMR_RFEN \
-					| LSDMR_BSMA1516 \
-					| LSDMR_RFCR8 \
-					| LSDMR_PRETOACT6 \
-					| LSDMR_ACTTORW3 \
-					| LSDMR_BL8 \
-					| LSDMR_WRC3 \
-					| LSDMR_CL3)
-
-/*
- * SDRAM Controller configuration sequence.
- */
-#define CONFIG_SYS_LBC_LSDMR_1	(CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_PCHALL)
-#define CONFIG_SYS_LBC_LSDMR_2	(CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_ARFRSH)
-#define CONFIG_SYS_LBC_LSDMR_3	(CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_ARFRSH)
-#define CONFIG_SYS_LBC_LSDMR_4	(CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_MRW)
-#define CONFIG_SYS_LBC_LSDMR_5	(CONFIG_SYS_LBC_LSDMR_COMMON | LSDMR_OP_NORMAL)
-#endif
-
 /*
  * Serial Port
  */
-- 
2.20.1
