[U-Boot] [PATCH v7 3/7] mips: ath79: add support for QCA953x SOCs

[Marek Vasut]

On Saturday, January 16, 2016 at 07:13:49 PM, Wills Wang wrote:
> This patch enable work for qca953x SOC.
> 
> Signed-off-by: Wills Wang <wills.wang at live.com>
> ---
> 
> Changes in v7:
> - Use CKSEGxADDR instead of KSEGxADDR for qca953x
> 
> Changes in v6: None
> Changes in v5: None
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None

[...]

> +int get_serial_clock(void)
> +{
> +	return qca953x_get_xtal();
> +}
> +
> +int get_clocks(void)
> +{
> +	void __iomem *regs;
> +	u32 val, ctrl, xtal, pll, div;

This looks like a copy of the same code in patch 2/7 .

> +	regs = map_physmem(AR71XX_PLL_BASE, AR71XX_PLL_SIZE,
> +			   MAP_NOCACHE);
> +
> +	xtal = qca953x_get_xtal();
> +	ctrl = readl(regs + QCA953X_PLL_CLK_CTRL_REG);
> +	val = readl(regs + QCA953X_PLL_CPU_CONFIG_REG);

[...]

> +void ddr_init(void)
> +{
> +	void __iomem *regs;
> +	u32 val;

This looks like a copy of the same code in patch 2/7 .

> +	regs = map_physmem(AR71XX_DDR_CTRL_BASE, AR71XX_DDR_CTRL_SIZE,
> +			   MAP_NOCACHE);
> +	val = get_bootstrap();
> +	if (val & QCA953X_BOOTSTRAP_DDR1) {
> +		writel(DDR_CTL_CONFIG_VAL, regs + QCA953X_DDR_REG_CTL_CONF);
> +		udelay(10);
> +
> +		/* For 16-bit DDR */
> +		writel(0xffff, regs + AR71XX_DDR_REG_RD_CYCLE);
> +		udelay(100);
> +
> +		/* Burst size */
> +		writel(DDR_BURST_VAL, regs + QCA953X_DDR_REG_BURST);
> +		udelay(100);
> +		writel(DDR_BURST2_VAL, regs + QCA953X_DDR_REG_BURST2);
> +		udelay(100);
> +
> +		/* AHB maximum timeout */
> +		writel(0xfffff, regs + QCA953X_DDR_REG_TIMEOUT_MAX);
> +		udelay(100);
> +
> +		/* DRAM timing */
> +		writel(DDR1_CONF_REG_VAL, regs + AR71XX_DDR_REG_CONFIG);
> +		udelay(100);
> +		writel(DDR1_CONF2_REG_VAL, regs + AR71XX_DDR_REG_CONFIG2);
> +		udelay(100);
> +		writel(DDR1_CONF3_REG_VAL, regs + QCA953X_DDR_REG_CONFIG3);
> +		udelay(100);

[...]