From 1b3e3c4f263ff20b95c3514eefbde47e950c39e0 Mon Sep 17 00:00:00 2001 From: York Sun Date: Tue, 7 Jun 2011 09:42:16 +0800 Subject: powerpc/mpc8xxx: Enable calculation for fixed DDR chips We used to have fixed parameters for soldered DDR chips. This patch introduces CONFIG_SYS_DDR_RAW_TIMING to enable calculation based on timing data from DDR chip datasheet, implemneted in board-specific files or header files. Signed-off-by: York Sun Signed-off-by: Kumar Gala --- arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/powerpc/cpu/mpc8xxx/ddr/ddr.h') diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h index 1e866fe0353..f59aa33b227 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h @@ -14,6 +14,7 @@ #include "common_timing_params.h" +#if defined(CONFIG_DDR_SPD) || defined(CONFIG_SPD_EEPROM) /* * Bind the main DDR setup driver's generic names * to this specific DDR technology. @@ -25,6 +26,7 @@ compute_dimm_parameters(const generic_spd_eeprom_t *spd, { return ddr_compute_dimm_parameters(spd, pdimm, dimm_number); } +#endif /* * Data Structures @@ -80,4 +82,9 @@ extern void check_interleaving_options(fsl_ddr_info_t *pinfo); extern unsigned int mclk_to_picos(unsigned int mclk); extern unsigned int get_memory_clk_period_ps(void); extern unsigned int picos_to_mclk(unsigned int picos); + +/* board specific function */ +int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, + unsigned int controller_number, + unsigned int dimm_number); #endif -- cgit v1.2.3