Messages in this thread Patch in this message | | | Date | Wed, 13 Jun 2007 14:09:55 +0100 | From | Ben Dooks <> | Subject | [patch 2/6] SM501 MFD driver updates |
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SM501: initialise SDRAM clock before bus clocks
This init sequence of setting the SDRAM clock before the bus clock is recommend by Silicon Motion to stop problems with writes not sticking into registers.
Signed-off-by: Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Index: linux-2.6.21-quilt8/drivers/mfd/sm501.c =================================================================== --- linux-2.6.21-quilt8.orig/drivers/mfd/sm501.c 2007-06-07 12:12:38.000000000 +0100 +++ linux-2.6.21-quilt8/drivers/mfd/sm501.c 2007-06-07 12:13:03.000000000 +0100 @@ -833,15 +833,15 @@ static void sm501_init_regs(struct sm501 sm501_init_reg(sm, SM501_GPIO31_0_CONTROL, &init->gpio_low); sm501_init_reg(sm, SM501_GPIO63_32_CONTROL, &init->gpio_high); - if (init->mclk) { - dev_info(sm->dev, "setting MCLK to %ld\n", init->mclk); - sm501_set_clock(sm->dev, SM501_CLOCK_MCLK, init->mclk); - } - if (init->m1xclk) { dev_info(sm->dev, "setting M1XCLK to %ld\n", init->m1xclk); sm501_set_clock(sm->dev, SM501_CLOCK_M1XCLK, init->m1xclk); } + + if (init->mclk) { + dev_info(sm->dev, "setting MCLK to %ld\n", init->mclk); + sm501_set_clock(sm->dev, SM501_CLOCK_MCLK, init->mclk); + } } static unsigned int sm501_mem_local[] = { -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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