diff options
Diffstat (limited to 'board/freescale/mx7d_19x19_ddr3_arm2/plugin.S')
| -rw-r--r-- | board/freescale/mx7d_19x19_ddr3_arm2/plugin.S | 56 |
1 files changed, 53 insertions, 3 deletions
diff --git a/board/freescale/mx7d_19x19_ddr3_arm2/plugin.S b/board/freescale/mx7d_19x19_ddr3_arm2/plugin.S index caea322..2e221fe 100644 --- a/board/freescale/mx7d_19x19_ddr3_arm2/plugin.S +++ b/board/freescale/mx7d_19x19_ddr3_arm2/plugin.S @@ -1,5 +1,5 @@ /* - * Copyright (C) 2014-2015 Freescale Semiconductor, Inc. + * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -7,7 +7,58 @@ #include <config.h> /* DDR script */ +.macro imx7d_ddrphy_latency_setting + ldr r2, =ANATOP_BASE_ADDR + ldr r3, [r2, #0x800] + and r3, r3, #0xFF + cmp r3, #0x11 + bne NO_DELAY + + /*TO 1.1*/ + ldr r1, =0x00000dee + str r1, [r0, #0x9c] + ldr r1, =0x18181818 + str r1, [r0, #0x7c] + ldr r1, =0x18181818 + str r1, [r0, #0x80] + ldr r1, =0x40401818 + str r1, [r0, #0x84] + ldr r1, =0x00000040 + str r1, [r0, #0x88] + ldr r1, =0x40404040 + str r1, [r0, #0x6c] + b TUNE_END + +NO_DELAY: + /*TO 1.0*/ + ldr r1, =0x00000d6e + str r1, [r0, #0x9c] + +TUNE_END: +.endm + +.macro imx7d_ddr_freq_setting + ldr r2, =ANATOP_BASE_ADDR + ldr r3, [r2, #0x800] + and r3, r3, #0xFF + cmp r3, #0x11 + bne FREQ_DEFAULT_533 + + /* Change to 400Mhz for TO1.1 */ + ldr r0, =CCM_BASE_ADDR + ldr r1, =0x15000000 + ldr r2, =0xa080 + str r1, [r0, r2] + ldr r1, =0x01000000 + ldr r2, =0x9880 + str r1, [r0, r2] + +FREQ_DEFAULT_533: +.endm + .macro imx7d_19x19_ddr3_arm2_ddr_setting + imx7d_ddr_freq_setting + /* Configure ocram_epdc */ ldr r0, =IOMUXC_GPR_BASE_ADDR ldr r1, =0x4f400005 @@ -90,8 +141,7 @@ str r1, [r0, #0x4] ldr r1, =0x00060807 str r1, [r0, #0x10] - ldr r1, =0x00000d6e - str r1, [r0, #0x9c] + imx7d_ddrphy_latency_setting ldr r1, =0x08080808 str r1, [r0, #0x20] ldr r1, =0x08080808 |