X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=board%2Fhighbank%2Fhighbank.c;h=55999ed2266bcb4045dc3975dcafbb18955a4ed1;hb=d25ba89e8b2b80c7229658b9fabdf96e9af64e01;hp=fc2385cf31a527a7225abe142928edbc6aa4939e;hpb=878cd63e02f63f245182a101807186b44e20f116;p=u-boot

diff --git a/board/highbank/highbank.c b/board/highbank/highbank.c
index fc2385cf31..55999ed226 100644
--- a/board/highbank/highbank.c
+++ b/board/highbank/highbank.c
@@ -14,9 +14,11 @@
 
 #define HB_AHCI_BASE			0xffe08000
 
+#define HB_SCU_A9_PWR_STATUS		0xfff10008
 #define HB_SREG_A9_PWR_REQ		0xfff3cf00
 #define HB_SREG_A9_BOOT_SRC_STAT	0xfff3cf04
 #define HB_SREG_A9_PWRDOM_STAT		0xfff3cf20
+#define HB_SREG_A15_PWR_CTRL		0xfff3c200
 
 #define HB_PWR_SUSPEND			0
 #define HB_PWR_SOFT_RESET		1
@@ -27,8 +29,14 @@
 #define PWRDOM_STAT_PCI			0x40000000
 #define PWRDOM_STAT_EMMC		0x20000000
 
+#define HB_SCU_A9_PWR_NORMAL		0
+#define HB_SCU_A9_PWR_DORMANT		2
+#define HB_SCU_A9_PWR_OFF		3
+
 DECLARE_GLOBAL_DATA_PTR;
 
+void cphy_disable_overrides(void);
+
 /*
  * Miscellaneous platform dependent initialisations
  */
@@ -56,8 +64,9 @@ void scsi_init(void)
 {
 	u32 reg = readl(HB_SREG_A9_PWRDOM_STAT);
 
+	cphy_disable_overrides();
 	if (reg & PWRDOM_STAT_SATA) {
-		ahci_init(HB_AHCI_BASE);
+		ahci_init((void __iomem *)HB_AHCI_BASE);
 		scsi_scan(1);
 	}
 }
@@ -87,12 +96,6 @@ int dram_init(void)
 	return 0;
 }
 
-void dram_init_banksize(void)
-{
-	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
-	gd->bd->bi_dram[0].size =  PHYS_SDRAM_1_SIZE;
-}
-
 #if defined(CONFIG_OF_BOARD_SETUP)
 int ft_board_setup(void *fdt, bd_t *bd)
 {
@@ -111,9 +114,31 @@ int ft_board_setup(void *fdt, bd_t *bd)
 }
 #endif
 
+static int is_highbank(void)
+{
+	uint32_t midr;
+
+	asm volatile ("mrc p15, 0, %0, c0, c0, 0\n" : "=r"(midr));
+
+	return (midr & 0xfff0) == 0xc090;
+}
+
 void reset_cpu(ulong addr)
 {
 	writel(HB_PWR_HARD_RESET, HB_SREG_A9_PWR_REQ);
+	if (is_highbank())
+		writeb(HB_SCU_A9_PWR_OFF, HB_SCU_A9_PWR_STATUS);
+	else
+		writel(0x1, HB_SREG_A15_PWR_CTRL);
 
 	wfi();
 }
+
+/*
+ * turn off the override before transferring control to Linux, since Linux
+ * may not support spread spectrum.
+ */
+void arch_preboot_os(void)
+{
+	cphy_disable_overrides();
+}