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| author | Lily Zhang <r58066@freescale.com> | 2011-01-18 21:01:45 +0800 |
|---|---|---|
| committer | Lily Zhang <r58066@freescale.com> | 2011-01-18 23:18:53 +0800 |
| commit | c633cc1cf614d0922ccc0b4edfa2e25a9637fb22 (patch) | |
| tree | 6cd42feaf23783bf837483a2bda2410508fab459 /board | |
| parent | 81915375667b6aa19f3ac1e93661007fde4b089a (diff) | |
| download | u-boot-imx-c633cc1cf614d0922ccc0b4edfa2e25a9637fb22.zip u-boot-imx-c633cc1cf614d0922ccc0b4edfa2e25a9637fb22.tar.gz u-boot-imx-c633cc1cf614d0922ccc0b4edfa2e25a9637fb22.tar.bz2 | |
ENGR00138148 MX53 TO2.0 EVK: change the default core as 1GHZ
Change the default core frequency as 1GHZ for MX53 TO2.0 EVK
board
Signed-off-by: Lily Zhang <r58066@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx53_evk/mx53_evk.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/board/freescale/mx53_evk/mx53_evk.c b/board/freescale/mx53_evk/mx53_evk.c index bb682d8..79472a7 100644 --- a/board/freescale/mx53_evk/mx53_evk.c +++ b/board/freescale/mx53_evk/mx53_evk.c @@ -1,7 +1,7 @@ /* * Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de> * - * (C) Copyright 2009-2010 Freescale Semiconductor, Inc. + * (C) Copyright 2009-2011 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -301,14 +301,14 @@ void setup_core_voltages(void) i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); - /* Set core voltage VDDGP to 1.05V for 800MHZ */ - buf[0] = 0x45; - buf[1] = 0x4a; - buf[2] = 0x52; - if (i2c_write(0x8, 24, 1, buf, 3)) - return; - if (is_soc_rev(CHIP_REV_1_0) == 0) { + /* Set core voltage VDDGP to 1.05V for 800MHZ */ + buf[0] = 0x45; + buf[1] = 0x4a; + buf[2] = 0x52; + if (i2c_write(0x8, 24, 1, buf, 3)) + return; + /* Set DDR voltage VDDA to 1.25V */ buf[0] = 0; buf[1] = 0; @@ -317,7 +317,13 @@ void setup_core_voltages(void) return; } - if (is_soc_rev(CHIP_REV_2_0) == 0) { + if (is_soc_rev(CHIP_REV_2_0) >= 0) { + /* set VDDGP as 1.2V for 1.0 GHZ */ + buf[0] = 0x45; + buf[1] = 0x4a; + buf[2] = 0x58; + if (i2c_write(0x8, 24, 1, buf, 3)) + return; /* Set VCC to 1.3V for TO2 */ buf[0] = 0; buf[1] = 0; @@ -338,6 +344,9 @@ void setup_core_voltages(void) /* Raise the core frequency to 800MHz */ writel(0x0, CCM_BASE_ADDR + CLKCTL_CACRR); + if (is_soc_rev(CHIP_REV_2_0) >= 0) + /* Raise the core frequency as 1G for TO2.0 */ + clk_config(CONFIG_REF_CLK_FREQ, 1000, CPU_CLK); } static int __read_adc_channel(unsigned int chan) |