diff options
Diffstat (limited to 'arch/arm/cpu/tegra-common/board.c')
| -rw-r--r-- | arch/arm/cpu/tegra-common/board.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/arch/arm/cpu/tegra-common/board.c b/arch/arm/cpu/tegra-common/board.c index 6a6faf4..433da09 100644 --- a/arch/arm/cpu/tegra-common/board.c +++ b/arch/arm/cpu/tegra-common/board.c @@ -27,11 +27,12 @@ enum { UART_COUNT = 5, }; +#if defined(CONFIG_TEGRA20) || defined(CONFIG_TEGRA30) || \ + defined(CONFIG_TEGRA114) /* * Boot ROM initializes the odmdata in APBDEV_PMC_SCRATCH20_0, * so we are using this value to identify memory size. */ - unsigned int query_sdram_size(void) { struct pmc_ctlr *const pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; @@ -72,6 +73,21 @@ unsigned int query_sdram_size(void) } #endif } +#else +#include <asm/arch/mc.h> + +/* Read the RAM size directly from the memory controller */ +unsigned int query_sdram_size(void) +{ + struct mc_ctlr *const mc = (struct mc_ctlr *)NV_PA_MC_BASE; + u32 size_mb; + + size_mb = readl(&mc->mc_emem_cfg); + debug("mc->mc_emem_cfg (MEM_SIZE_MB) = 0x%08x\n", size_mb); + + return size_mb * 1024 * 1024; +} +#endif int dram_init(void) { |