arm: kirkwood: Change naming of dram functions from km_foo() to mvebu_foo()

Additionally the SDRAM address decoding register address is not hard coded
in the C code any more. A define is introduced for this base address.

This makes is possible to use those gpio functions from other MVEBU SoC's
as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>

3 files changed, 31 insertions, 29 deletions

diff --git a/arch/arm/include/asm/arch-kirkwood/cpu.h b/arch/arm/include/asm/arch-kirkwood/cpu.h
index 5900a15..926d347 100644
--- a/arch/arm/include/asm/arch-kirkwood/cpu.h
+++ b/arch/arm/include/asm/arch-kirkwood/cpu.h
@@ -140,9 +140,9 @@ struct kwgpio_registers {
  * functions
  */
 unsigned char get_random_hex(void);
-unsigned int kw_sdram_bar(enum memory_bank bank);
-unsigned int kw_sdram_bs(enum memory_bank bank);
-void kw_sdram_size_adjust(enum memory_bank bank);
+unsigned int mvebu_sdram_bar(enum memory_bank bank);
+unsigned int mvebu_sdram_bs(enum memory_bank bank);
+void mvebu_sdram_size_adjust(enum memory_bank bank);
 int kw_config_adr_windows(void);
 void mvebu_config_gpio(unsigned int gpp0_oe_val, unsigned int gpp1_oe_val,
 		unsigned int gpp0_oe, unsigned int gpp1_oe);
diff --git a/arch/arm/include/asm/arch-kirkwood/soc.h b/arch/arm/include/asm/arch-kirkwood/soc.h
index 4ef32c7..58ed71b 100644
--- a/arch/arm/include/asm/arch-kirkwood/soc.h
+++ b/arch/arm/include/asm/arch-kirkwood/soc.h
@@ -22,6 +22,7 @@
 #define KW_REG_UNDOC_0x1470		(KW_REGISTER(0x1470))
 #define KW_REG_UNDOC_0x1478		(KW_REGISTER(0x1478))
 
+#define MVEBU_SDRAM_BASE		(KW_REGISTER(0x1500))
 #define KW_TWSI_BASE			(KW_REGISTER(0x11000))
 #define KW_UART0_BASE			(KW_REGISTER(0x12000))
 #define KW_UART1_BASE			(KW_REGISTER(0x12100))
diff --git a/arch/arm/mvebu-common/dram.c b/arch/arm/mvebu-common/dram.c
index e468136..db18791 100644
--- a/arch/arm/mvebu-common/dram.c
+++ b/arch/arm/mvebu-common/dram.c
@@ -14,27 +14,27 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-struct kw_sdram_bank {
+struct sdram_bank {
 	u32	win_bar;
 	u32	win_sz;
 };
 
-struct kw_sdram_addr_dec {
-	struct kw_sdram_bank	sdram_bank[4];
+struct sdram_addr_dec {
+	struct sdram_bank sdram_bank[4];
 };
 
-#define KW_REG_CPUCS_WIN_ENABLE		(1 << 0)
-#define KW_REG_CPUCS_WIN_WR_PROTECT	(1 << 1)
-#define KW_REG_CPUCS_WIN_WIN0_CS(x)	(((x) & 0x3) << 2)
-#define KW_REG_CPUCS_WIN_SIZE(x)	(((x) & 0xff) << 24)
+#define REG_CPUCS_WIN_ENABLE		(1 << 0)
+#define REG_CPUCS_WIN_WR_PROTECT	(1 << 1)
+#define REG_CPUCS_WIN_WIN0_CS(x)	(((x) & 0x3) << 2)
+#define REG_CPUCS_WIN_SIZE(x)		(((x) & 0xff) << 24)
 
 /*
- * kw_sdram_bar - reads SDRAM Base Address Register
+ * mvebu_sdram_bar - reads SDRAM Base Address Register
  */
-u32 kw_sdram_bar(enum memory_bank bank)
+u32 mvebu_sdram_bar(enum memory_bank bank)
 {
-	struct kw_sdram_addr_dec *base =
-		(struct kw_sdram_addr_dec *)KW_REGISTER(0x1500);
+	struct sdram_addr_dec *base =
+		(struct sdram_addr_dec *)MVEBU_SDRAM_BASE;
 	u32 result = 0;
 	u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz);
 
@@ -46,31 +46,31 @@ u32 kw_sdram_bar(enum memory_bank bank)
 }
 
 /*
- * kw_sdram_bs_set - writes SDRAM Bank size
+ * mvebu_sdram_bs_set - writes SDRAM Bank size
  */
-static void kw_sdram_bs_set(enum memory_bank bank, u32 size)
+static void mvebu_sdram_bs_set(enum memory_bank bank, u32 size)
 {
-	struct kw_sdram_addr_dec *base =
-		(struct kw_sdram_addr_dec *)KW_REGISTER(0x1500);
+	struct sdram_addr_dec *base =
+		(struct sdram_addr_dec *)MVEBU_SDRAM_BASE;
 	/* Read current register value */
 	u32 reg = readl(&base->sdram_bank[bank].win_sz);
 
 	/* Clear window size */
-	reg &= ~KW_REG_CPUCS_WIN_SIZE(0xFF);
+	reg &= ~REG_CPUCS_WIN_SIZE(0xFF);
 
 	/* Set new window size */
-	reg |= KW_REG_CPUCS_WIN_SIZE((size - 1) >> 24);
+	reg |= REG_CPUCS_WIN_SIZE((size - 1) >> 24);
 
 	writel(reg, &base->sdram_bank[bank].win_sz);
 }
 
 /*
- * kw_sdram_bs - reads SDRAM Bank size
+ * mvebu_sdram_bs - reads SDRAM Bank size
  */
-u32 kw_sdram_bs(enum memory_bank bank)
+u32 mvebu_sdram_bs(enum memory_bank bank)
 {
-	struct kw_sdram_addr_dec *base =
-		(struct kw_sdram_addr_dec *)KW_REGISTER(0x1500);
+	struct sdram_addr_dec *base =
+		(struct sdram_addr_dec *)MVEBU_SDRAM_BASE;
 	u32 result = 0;
 	u32 enable = 0x01 & readl(&base->sdram_bank[bank].win_sz);
 
@@ -81,15 +81,16 @@ u32 kw_sdram_bs(enum memory_bank bank)
 	return result;
 }
 
-void kw_sdram_size_adjust(enum memory_bank bank)
+void mvebu_sdram_size_adjust(enum memory_bank bank)
 {
 	u32 size;
 
 	/* probe currently equipped RAM size */
-	size = get_ram_size((void *)kw_sdram_bar(bank), kw_sdram_bs(bank));
+	size = get_ram_size((void *)mvebu_sdram_bar(bank),
+			    mvebu_sdram_bs(bank));
 
 	/* adjust SDRAM window size accordingly */
-	kw_sdram_bs_set(bank, size);
+	mvebu_sdram_bs_set(bank, size);
 }
 
 #ifndef CONFIG_SYS_BOARD_DRAM_INIT
@@ -99,8 +100,8 @@ int dram_init(void)
 
 	gd->ram_size = 0;
 	for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
-		gd->bd->bi_dram[i].start = kw_sdram_bar(i);
-		gd->bd->bi_dram[i].size = kw_sdram_bs(i);
+		gd->bd->bi_dram[i].start = mvebu_sdram_bar(i);
+		gd->bd->bi_dram[i].size = mvebu_sdram_bs(i);
 		/*
 		 * It is assumed that all memory banks are consecutive
 		 * and without gaps.