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davinci: da8xx/omapl1: add support for the second sysconfig module

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OMAP-L138 adds a second SYSCFG region having useful functionality
like deep sleep, pull up/down control and SATA clock stop.

This patch makes provision for accessing registers from second
SYSCFG region in da8xx code.

Note that OMAP-L137 has a single SYSCFG region.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Sekhar Nori
2009-11-16 17:21:32 +05:30
committad av Kevin Hilman
förälder f2a4c59df6
incheckning d2de05827c
6 ändrade filer med 28 tillägg och 19 borttagningar
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20
arch/arm/mach-davinci/da850.c
Visa fil

@@ -838,12 +838,12 @@ static void da850_set_async3_src(int pllnum)
}
}
v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
if (pllnum)
v |= CFGCHIP3_ASYNC3_CLKSRC;
else
v &= ~CFGCHIP3_ASYNC3_CLKSRC;
__raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP3_REG));
__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}
#ifdef CONFIG_CPU_FREQ
@@ -996,9 +996,9 @@ static int da850_set_pll0rate(struct clk *clk, unsigned long index)
postdiv = opp->postdiv;
/* Unlock writing to PLL registers */
v = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
v &= ~CFGCHIP0_PLL_MASTER_LOCK;
__raw_writel(v, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP0_REG));
__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
if (WARN_ON(ret))
@@ -1053,13 +1053,17 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
void __init da850_init(void)
{
da8xx_syscfg_base = ioremap(DA8XX_SYSCFG_BASE, SZ_4K);
if (WARN(!da8xx_syscfg_base, "Unable to map syscfg module"))
da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
return;
da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
return;
davinci_soc_info_da850.jtag_id_base =
DA8XX_SYSCFG_VIRT(DA8XX_JTAG_ID_REG);
davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG_VIRT(0x120);
DA8XX_SYSCFG0_VIRT(DA8XX_JTAG_ID_REG);
davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG0_VIRT(0x120);
davinci_common_init(&davinci_soc_info_da850);