ram: rockchip: add common code for sdram driver

[platform/kernel/u-boot.git] / arch / arm / include / asm / arch-rockchip / sdram_common.h

diff --git a/arch/arm/include/asm/arch-rockchip/sdram_common.h b/arch/arm/include/asm/arch-rockchip/sdram_common.h
index cd3d7f9..36d3115 100644 (file)
--- a/arch/arm/include/asm/arch-rockchip/sdram_common.h
+++ b/arch/arm/include/asm/arch-rockchip/sdram_common.h
@@ -6,6 +6,15 @@
 #ifndef _ASM_ARCH_SDRAM_COMMON_H
 #define _ASM_ARCH_SDRAM_COMMON_H
 
+#ifndef MHZ
+#define MHZ            (1000 * 1000)
+#endif
+
+#define PATTERN                (0x5aa5f00f)
+
+#define MIN(a, b)      (((a) > (b)) ? (b) : (a))
+#define MAX(a, b)      (((a) > (b)) ? (a) : (b))
+
 struct sdram_cap_info {
        unsigned int rank;
        /* dram column number, 0 means this channel is invalid */
@@ -125,4 +134,26 @@ void sdram_print_ddr_info(struct sdram_cap_info *cap_info,
 void sdram_print_stride(unsigned int stride);
 #endif /* CONFIG_RAM_ROCKCHIP_DEBUG */
 
+void sdram_org_config(struct sdram_cap_info *cap_info,
+                     struct sdram_base_params *base,
+                     u32 *p_os_reg2, u32 *p_os_reg3, u32 channel);
+
+int sdram_detect_bw(struct sdram_cap_info *cap_info);
+int sdram_detect_cs(struct sdram_cap_info *cap_info);
+int sdram_detect_col(struct sdram_cap_info *cap_info,
+                    u32 coltmp);
+int sdram_detect_bank(struct sdram_cap_info *cap_info,
+                     u32 coltmp, u32 bktmp);
+int sdram_detect_bg(struct sdram_cap_info *cap_info,
+                   u32 coltmp);
+int sdram_detect_dbw(struct sdram_cap_info *cap_info, u32 dram_type);
+int sdram_detect_row(struct sdram_cap_info *cap_info,
+                    u32 coltmp, u32 bktmp, u32 rowtmp);
+int sdram_detect_row_3_4(struct sdram_cap_info *cap_info,
+                        u32 coltmp, u32 bktmp);
+int sdram_detect_high_row(struct sdram_cap_info *cap_info);
+int sdram_detect_cs1_row(struct sdram_cap_info *cap_info, u32 dram_type);
+u64 sdram_get_cs_cap(struct sdram_cap_info *cap_info, u32 cs, u32 dram_type);
+void sdram_copy_to_reg(u32 *dest, const u32 *src, u32 n);
+
 #endif