arm64: mvebu: armada-8k: move dram init code
Move Armada-8k specific DRAM init code into armada-8k specific
directory.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/mach-mvebu/arm64-common.c b/arch/arm/mach-mvebu/arm64-common.c
index 40b98db..244ea49 100644
--- a/arch/arm/mach-mvebu/arm64-common.c
+++ b/arch/arm/mach-mvebu/arm64-common.c
@@ -45,54 +45,12 @@
return NULL;
}
-/* DRAM init code ... */
-
-#define MV_SIP_DRAM_SIZE 0x82000010
-
-static u64 a8k_dram_scan_ap_sz(void)
-{
- struct pt_regs pregs;
-
- pregs.regs[0] = MV_SIP_DRAM_SIZE;
- pregs.regs[1] = SOC_REGS_PHY_BASE;
- smc_call(&pregs);
-
- return pregs.regs[0];
-}
-
-static void a8k_dram_init_banksize(void)
-{
- /*
- * The firmware (ATF) leaves a 1G whole above the 3G mark for IO
- * devices. Higher RAM is mapped at 4G.
- *
- * Config 2 DRAM banks:
- * Bank 0 - max size 4G - 1G
- * Bank 1 - ram size - 4G + 1G
- */
- phys_size_t max_bank0_size = SZ_4G - SZ_1G;
-
- gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
- if (gd->ram_size <= max_bank0_size) {
- gd->bd->bi_dram[0].size = gd->ram_size;
- return;
- }
-
- gd->bd->bi_dram[0].size = max_bank0_size;
- if (CONFIG_NR_DRAM_BANKS > 1) {
- gd->bd->bi_dram[1].start = SZ_4G;
- gd->bd->bi_dram[1].size = gd->ram_size - max_bank0_size;
- }
-}
-
__weak int dram_init_banksize(void)
{
if (CONFIG_IS_ENABLED(ARMADA_8K))
- a8k_dram_init_banksize();
+ return a8k_dram_init_banksize();
else
- fdtdec_setup_memory_banksize();
-
- return 0;
+ return fdtdec_setup_memory_banksize();
}
__weak int dram_init(void)
diff --git a/arch/arm/mach-mvebu/armada8k/Makefile b/arch/arm/mach-mvebu/armada8k/Makefile
index 82cb25b..0a47567 100644
--- a/arch/arm/mach-mvebu/armada8k/Makefile
+++ b/arch/arm/mach-mvebu/armada8k/Makefile
@@ -2,5 +2,4 @@
#
# Copyright (C) 2016 Stefan Roese <sr@denx.de>
-obj-y = cpu.o
-obj-y += cache_llc.o
+obj-y = cpu.o cache_llc.o dram.o
diff --git a/arch/arm/mach-mvebu/armada8k/dram.c b/arch/arm/mach-mvebu/armada8k/dram.c
new file mode 100644
index 0000000..265a8b0
--- /dev/null
+++ b/arch/arm/mach-mvebu/armada8k/dram.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2016 Stefan Roese <sr@denx.de>
+ */
+
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <asm/system.h>
+#include <linux/sizes.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MV_SIP_DRAM_SIZE 0x82000010
+
+u64 a8k_dram_scan_ap_sz(void)
+{
+ struct pt_regs pregs;
+
+ pregs.regs[0] = MV_SIP_DRAM_SIZE;
+ pregs.regs[1] = SOC_REGS_PHY_BASE;
+ smc_call(&pregs);
+
+ return pregs.regs[0];
+}
+
+int a8k_dram_init_banksize(void)
+{
+ /*
+ * The firmware (ATF) leaves a 1G whole above the 3G mark for IO
+ * devices. Higher RAM is mapped at 4G.
+ *
+ * Config 2 DRAM banks:
+ * Bank 0 - max size 4G - 1G
+ * Bank 1 - ram size - 4G + 1G
+ */
+ phys_size_t max_bank0_size = SZ_4G - SZ_1G;
+
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+ if (gd->ram_size <= max_bank0_size) {
+ gd->bd->bi_dram[0].size = gd->ram_size;
+ return 0;
+ }
+
+ gd->bd->bi_dram[0].size = max_bank0_size;
+ if (CONFIG_NR_DRAM_BANKS > 1) {
+ gd->bd->bi_dram[1].start = SZ_4G;
+ gd->bd->bi_dram[1].size = gd->ram_size - max_bank0_size;
+ }
+
+ return 0;
+}
diff --git a/arch/arm/mach-mvebu/include/mach/cpu.h b/arch/arm/mach-mvebu/include/mach/cpu.h
index fa7c817..16d8252 100644
--- a/arch/arm/mach-mvebu/include/mach/cpu.h
+++ b/arch/arm/mach-mvebu/include/mach/cpu.h
@@ -172,6 +172,10 @@
static inline void mv_rtc_config(void) {}
#endif
+/* A8K dram functions */
+u64 a8k_dram_scan_ap_sz(void);
+int a8k_dram_init_banksize(void);
+
/*
* get_ref_clk
*