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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 DMP Electronics Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
/*
PLL Freq = 25 * NS /(MS * 2^RS)
CPU Freq = PLL/(CPU_DIV+2)
DRAM Freq = PLL/2(DRAM_DIV+1)
DDR3
CPU/DRAM/PCI B6 B7 BB BC BD BF
200/200/33 30 03 0F 02 8F 07
300/300/33 48 03 0F 02 1F 07
300/300/33 48 03 0F 3A DF 07 ; write leveling disable, cpu bypass disable
300/300/33 48 03 0F 22 3F 07 ; cpu bypass disable
300/300/100 48 03 23 02 7F 07
400/200/33 60 43 0F 02 3F 07 ; without 200MHz timing, so set 300MHz timing
400/200/100 60 43 23 02 4F 07
400/400/33 60 03 0F 02 BF 09
500/250/33 50 42 0F 02 DF 07
500/500/33 78 03 0F 02 4F 09
400/300/33 90 53 0F 02 3F 07
400/300/33 90 53 0F 1A DF 07 ; write leveling/gate training disable
400/300/100 90 53 23 02 9F 07
444/333/33 A0 53 0F 02 5F 08
466/350/33 A8 53 0F 02 DF 09
500/375/33 B4 53 0F 02 AF 09
*/
#if CONFIG_PLL_200_200_33
// 200/200/33 30 03 0F 02 8F 07
byte_fffb6 = 0x30
byte_fffb7 = 0x03
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_300_300_33
// 300/300/33 48 03 0F 02 1F 07
byte_fffb6 = 0x48
byte_fffb7 = 0x03
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_300_300_100
// 300/300/100 48 03 23 02 7F 07
byte_fffb6 = 0x48
byte_fffb7 = 0x03
byte_fffbb = 0x23
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_400_200_33
// 400/200/33 60 43 0F 02 3F 07 ; without 200MHz timing, so set 300MHz timing
byte_fffb6 = 0x60
byte_fffb7 = 0x43
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_400_200_100
// 400/200/100 60 43 23 02 4F 07
byte_fffb6 = 0x60
byte_fffb7 = 0x43
byte_fffbb = 0x23
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_400_400_33
// 400/400/33 60 03 0F 02 BF 09
byte_fffb6 = 0x60
byte_fffb7 = 0x03
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x09
#elif CONFIG_PLL_500_250_33
// 500/250/33 50 42 0F 02 DF 07
byte_fffb6 = 0x50
byte_fffb7 = 0x42
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_500_500_33
// 500/500/33 78 03 0F 02 4F 09
byte_fffb6 = 0x78
byte_fffb7 = 0x03
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x09
#elif CONFIG_PLL_400_300_33
// 400/300/33 90 53 0F 02 3F 07
byte_fffb6 = 0x90
byte_fffb7 = 0x53
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_400_300_100
// 400/300/100 90 53 23 02 9F 07
byte_fffb6 = 0x90
byte_fffb7 = 0x53
byte_fffbb = 0x23
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x07
#elif CONFIG_PLL_444_333_33
// 444/333/33 A0 53 0F 02 5F 08
byte_fffb6 = 0xa0
byte_fffb7 = 0x53
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x08
#elif CONFIG_PLL_466_350_33
// 466/350/33 A8 53 0F 02 DF 09
byte_fffb6 = 0xa8
byte_fffb7 = 0x53
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x09
#elif CONFIG_PLL_500_375_33
// 500/375/33 B4 53 0F 02 AF 09
byte_fffb6 = 0xb4
byte_fffb7 = 0x53
byte_fffbb = 0x0f
byte_fffbc = 0x02
byte_fffbe = 0xff
byte_fffbf = 0x09
#else
#error Error Strap PLL config.
#endif
tmp_sum = byte_fffb6 + byte_fffb7 + byte_fffbb + byte_fffbc
pll_checksum = ((tmp_sum >> 8) & 0x3) + ((tmp_sum >> 4) & 0x0f) + (tmp_sum & 0x0f)
byte_fffbd = ((pll_checksum & 0x0f) << 4) | 0x0f
.section ".a9123_crossbar_config", "a", @progbits
.skip 0x3fdf0 - 0x3fd00, 0xff
.previous
.section ".a9123_strap_1", "a", @progbits
.byte byte_fffb6, byte_fffb7
.previous
.section ".a9123_strap_2", "a", @progbits
.byte byte_fffbb, byte_fffbc, byte_fffbd, byte_fffbe, byte_fffbf
.previous