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@@ -15,14 +15,34 @@
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#include <asm/mach-types.h>
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#include <asm/psci.h>
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+#define DMM_INTERLEAVE_PER_CH_CFG 0xe0290028
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+
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DECLARE_GLOBAL_DATA_PTR;
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+unsigned int owl_get_ddrcap(void)
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+{
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+ unsigned int val, cap;
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+
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+ /* ddr capacity register initialized by ddr driver
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+ * in early bootloader
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+ */
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+#if defined(CONFIG_MACH_S700)
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+ val = (readl(DMM_INTERLEAVE_PER_CH_CFG) >> 8) & 0x7;
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+ cap = (val + 1) * 256;
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+#elif defined(CONFIG_MACH_S900)
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+ val = (readl(DMM_INTERLEAVE_PER_CH_CFG) >> 8) & 0xf;
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+ cap = 64 * (1 << val);
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+#endif
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+
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+ return cap;
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+}
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+
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/*
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* dram_init - sets uboots idea of sdram size
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*/
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int dram_init(void)
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{
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- gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
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+ gd->ram_size = owl_get_ddrcap() * 1024 * 1024;
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return 0;
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}
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