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Driver/DDR: Add Freescale DDR driver for ARM

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Make PowerPC specific code conditional so ARM SoCs can reuse
this driver. Add DDR3 driver for ARM.

Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
York Sun 2013-09-30 14:20:51 -07:00
parent 9a17eb5b7e
commit 9ac4ffbde1
5 changed files with 230 additions and 4 deletions
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12
drivers/ddr/fsl/main.c
View file

@ -15,16 +15,18 @@
#include <common.h>
#include <i2c.h>
#include <fsl_ddr_sdram.h>
#include <asm/fsl_law.h>
#include <fsl_ddr.h>
#ifdef CONFIG_PPC
#include <asm/fsl_law.h>
void fsl_ddr_set_lawbar(
const common_timing_params_t *memctl_common_params,
unsigned int memctl_interleaved,
unsigned int ctrl_num);
void fsl_ddr_set_intl3r(const unsigned int granule_size);
#endif
void fsl_ddr_set_intl3r(const unsigned int granule_size);
#if defined(SPD_EEPROM_ADDRESS) || \
defined(SPD_EEPROM_ADDRESS1) || defined(SPD_EEPROM_ADDRESS2) || \
defined(SPD_EEPROM_ADDRESS3) || defined(SPD_EEPROM_ADDRESS4)
@ -549,7 +551,9 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
phys_size_t fsl_ddr_sdram(void)
{
unsigned int i;
#ifdef CONFIG_PPC
unsigned int law_memctl = LAW_TRGT_IF_DDR_1;
#endif
unsigned long long total_memory;
fsl_ddr_info_t info;
int deassert_reset;
@ -621,6 +625,7 @@ phys_size_t fsl_ddr_sdram(void)
}
}
#ifdef CONFIG_PPC
/* program LAWs */
for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) {
if (info.memctl_opts[i].memctl_interleaving) {
@ -681,6 +686,7 @@ phys_size_t fsl_ddr_sdram(void)
law_memctl, i);
}
}
#endif
debug("total_memory by %s = %llu\n", __func__, total_memory);