[U-Boot] [PATCH v3 3/3] ppc/p1_p2_RDB: DDR Relocation support for NAND/SD/eSPI Boot

Kumar Gala galak at kernel.crashing.org
Fri Oct 9 20:20:37 CEST 2009


On Oct 9, 2009, at 12:42 PM, Dipen Dudhat wrote:

> +void initsdram(void)
> +{
> +
> +	volatile ccsr_ddr_t *ddr= (ccsr_ddr_t *)CONFIG_SYS_MPC85xx_DDR_ADDR;
> +	int d_init, dbw;
> +	volatile ccsr_gpio_t *pgpio = (void *) 
> (CONFIG_SYS_MPC85xx_GPIO_ADDR);
> +	unsigned int ddr_size;
> +	sys_info_t sysinfo;
> +	phys_size_t dram_size = 0;
> +
> +	set_next_law(0,LAW_SIZE_1G , LAW_TRGT_IF_DDR_1);
> +
> +	out_be32(&ddr->cs0_bnds, CONFIG_SYS_DDR_CS0_BNDS);
> +	out_be32(&ddr->cs0_config, CONFIG_SYS_DDR_CS0_CONFIG);
> +	out_be32(&ddr->cs0_config_2, CONFIG_SYS_DDR_CS0_CONFIG_2);
> +
> +	out_be32(&ddr->timing_cfg_3, CONFIG_SYS_DDR_TIMING_3_667);
> +	out_be32(&ddr->timing_cfg_0, CONFIG_SYS_DDR_TIMING_0_667);
> +	out_be32(&ddr->timing_cfg_1, CONFIG_SYS_DDR_TIMING_1_667);
> +	out_be32(&ddr->timing_cfg_2, CONFIG_SYS_DDR_TIMING_2_667);
> +	out_be32(&ddr->sdram_mode, CONFIG_SYS_DDR_MODE_1_667);
> +	out_be32(&ddr->sdram_mode_2, CONFIG_SYS_DDR_MODE_2_667);
> +	out_be32(&ddr->sdram_interval, CONFIG_SYS_DDR_INTERVAL_667);
> +	out_be32(&ddr->sdram_clk_cntl, CONFIG_SYS_DDR_CLK_CTRL_667);
> +	out_be32(&ddr->sdram_cfg, CONFIG_SYS_DDR_CONTROL);
> +	out_be32(&ddr->sdram_cfg_2, CONFIG_SYS_DDR_CONTROL_2);

did fsl_ddr_set_memctl_regs() not work?

> +
> +	asm("sync;isync");
> +
> +	udelay(500);
> +
> +	ddr->sdram_cfg |= 0x80000000;

should be setbit_be32

- k


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