mx6sxsabresd: Update DDR initialization
Use the latest DDR initialization values suggested by the FSL hardware team. While at it, add some comments for clarification. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
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					@ -30,6 +30,7 @@ BOOT_FROM	sd
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 *	value	  value to be stored in the register
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					 *	value	  value to be stored in the register
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 */
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					 */
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					/* Enable all clocks */
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DATA 4 0x020c4068 0xffffffff
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					DATA 4 0x020c4068 0xffffffff
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DATA 4 0x020c406c 0xffffffff
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					DATA 4 0x020c406c 0xffffffff
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DATA 4 0x020c4070 0xffffffff
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					DATA 4 0x020c4070 0xffffffff
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					@ -39,46 +40,69 @@ DATA 4 0x020c407c 0xffffffff
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DATA 4 0x020c4080 0xffffffff
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					DATA 4 0x020c4080 0xffffffff
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DATA 4 0x020c4084 0xffffffff
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					DATA 4 0x020c4084 0xffffffff
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					/* IOMUX - DDR IO Type */
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DATA 4 0x020e0618 0x000c0000
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					DATA 4 0x020e0618 0x000c0000
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DATA 4 0x020e05fc 0x00000000
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					DATA 4 0x020e05fc 0x00000000
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					/* Clock */
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DATA 4 0x020e032c 0x00000030
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					DATA 4 0x020e032c 0x00000030
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DATA 4 0x020e0300 0x00000030
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					/* Address */
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DATA 4 0x020e02fc 0x00000030
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					DATA 4 0x020e0300 0x00000020
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DATA 4 0x020e05f4 0x00000030
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					DATA 4 0x020e02fc 0x00000020
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DATA 4 0x020e0340 0x00000030
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					DATA 4 0x020e05f4 0x00000020
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					/* Control */
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					DATA 4 0x020e0340 0x00000020
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DATA 4 0x020e0320 0x00000000
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					DATA 4 0x020e0320 0x00000000
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DATA 4 0x020e0310 0x00000030
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					DATA 4 0x020e0310 0x00000020
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DATA 4 0x020e0314 0x00000030
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					DATA 4 0x020e0314 0x00000020
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DATA 4 0x020e0614 0x00000030
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					DATA 4 0x020e0614 0x00000020
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					/* Data Strobe */
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DATA 4 0x020e05f8 0x00020000
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					DATA 4 0x020e05f8 0x00020000
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DATA 4 0x020e0330 0x00000030
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					DATA 4 0x020e0330 0x00000028
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DATA 4 0x020e0334 0x00000030
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					DATA 4 0x020e0334 0x00000028
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DATA 4 0x020e0338 0x00000030
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					DATA 4 0x020e0338 0x00000028
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DATA 4 0x020e033c 0x00000030
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					DATA 4 0x020e033c 0x00000028
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					/* Data */
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DATA 4 0x020e0608 0x00020000
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					DATA 4 0x020e0608 0x00020000
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DATA 4 0x020e060c 0x00000030
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					DATA 4 0x020e060c 0x00000028
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DATA 4 0x020e0610 0x00000030
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					DATA 4 0x020e0610 0x00000028
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DATA 4 0x020e061c 0x00000030
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					DATA 4 0x020e061c 0x00000028
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DATA 4 0x020e0620 0x00000030
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					DATA 4 0x020e0620 0x00000028
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DATA 4 0x020e02ec 0x00000030
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					DATA 4 0x020e02ec 0x00000028
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DATA 4 0x020e02f0 0x00000030
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					DATA 4 0x020e02f0 0x00000028
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DATA 4 0x020e02f4 0x00000030
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					DATA 4 0x020e02f4 0x00000028
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DATA 4 0x020e02f8 0x00000030
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					DATA 4 0x020e02f8 0x00000028
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					/* Calibrations - ZQ */
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DATA 4 0x021b0800 0xa1390003
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					DATA 4 0x021b0800 0xa1390003
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DATA 4 0x021b080c 0x00270025
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DATA 4 0x021b0810 0x001B001E
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					/* Write leveling */
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DATA 4 0x021b083c 0x4144013C
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					DATA 4 0x021b080c 0x00290025
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DATA 4 0x021b0840 0x01300128
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					DATA 4 0x021b0810 0x00220022
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DATA 4 0x021b0848 0x4044464A
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DATA 4 0x021b0850 0x3A383C34
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					/* DQS Read Gate */
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					DATA 4 0x021b083c 0x41480144
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					DATA 4 0x021b0840 0x01340130
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					/* Read/Write Delay */
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					DATA 4 0x021b0848 0x3C3E4244
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					DATA 4 0x021b0850 0x34363638
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					/* Read data bit delay */
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DATA 4 0x021b081c 0x33333333
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					DATA 4 0x021b081c 0x33333333
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DATA 4 0x021b0820 0x33333333
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					DATA 4 0x021b0820 0x33333333
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DATA 4 0x021b0824 0x33333333
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					DATA 4 0x021b0824 0x33333333
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DATA 4 0x021b0828 0x33333333
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					DATA 4 0x021b0828 0x33333333
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					/* Complete calibration by forced measurement */
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DATA 4 0x021b08b8 0x00000800
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					DATA 4 0x021b08b8 0x00000800
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					/* MMDC init - DDR3, 64-bit mode, only MMDC0 is initiated */
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DATA 4 0x021b0004 0x0002002d
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					DATA 4 0x021b0004 0x0002002d
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DATA 4 0x021b0008 0x00333030
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					DATA 4 0x021b0008 0x00333030
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DATA 4 0x021b000c 0x676b52f3
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					DATA 4 0x021b000c 0x676b52f3
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					@ -90,16 +114,19 @@ DATA 4 0x021b002c 0x000026d2
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DATA 4 0x021b0030 0x006b1023
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					DATA 4 0x021b0030 0x006b1023
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DATA 4 0x021b0040 0x0000005f
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					DATA 4 0x021b0040 0x0000005f
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DATA 4 0x021b0000 0x84190000
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					DATA 4 0x021b0000 0x84190000
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					/* Initialize MT41K256M16HA-125 - MR2 */
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DATA 4 0x021b001c 0x04008032
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					DATA 4 0x021b001c 0x04008032
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					/* MR3 */
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DATA 4 0x021b001c 0x00008033
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					DATA 4 0x021b001c 0x00008033
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DATA 4 0x021b001c 0x00068031
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					/* MR1 */
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					DATA 4 0x021b001c 0x00048031
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					/* MR0 */
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DATA 4 0x021b001c 0x05208030
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					DATA 4 0x021b001c 0x05208030
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					/* DDR device ZQ calibration */
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DATA 4 0x021b001c 0x04008040
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					DATA 4 0x021b001c 0x04008040
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					/* Final DDR setup, before operation start */
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DATA 4 0x021b0020 0x00000800
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					DATA 4 0x021b0020 0x00000800
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DATA 4 0x021b0818 0x00011117
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					DATA 4 0x021b0818 0x00011117
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DATA 4 0x021b001c 0x00000000
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					DATA 4 0x021b001c 0x00000000
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DATA 4 0x021b083c 0x41400138
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DATA 4 0x021b0840 0x012C011C
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DATA 4 0x021b0848 0x3C3C4044
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DATA 4 0x021b0850 0x34343638
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