arm: ep9315: Return back Cirrus Logic EDB9315A board support

This patch returns back support for old ep93xx processors family

Signed-off-by: Sergey Kostanbaev <sergey.kostanbaev@gmail.com>
Cc: albert.u.boot@aribaud.net

1 files changed, 85 insertions, 0 deletions

diff --git a/arch/arm/include/asm/arch-ep93xx/ep93xx.h b/arch/arm/include/asm/arch-ep93xx/ep93xx.h
index 9e7f2f3480..330493b606 100644
--- a/arch/arm/include/asm/arch-ep93xx/ep93xx.h
+++ b/arch/arm/include/asm/arch-ep93xx/ep93xx.h
@@ -1,6 +1,9 @@
 /*
  * Cirrus Logic EP93xx register definitions.
  *
+ * Copyright (C) 2013
+ * Sergey Kostanbaev <sergey.kostanbaev <at> fairwaves.ru>
+ *
  * Copyright (C) 2009
  * Matthias Kaehlcke <matthias@kaehlcke.net>
  *
@@ -287,6 +290,20 @@ struct sdram_regs {
 #define SDRAM_DEVCFG_CASLAT_2		0x00010000
 #define SDRAM_DEVCFG_RASTOCAS_2		0x00200000
 
+#define SDRAM_OFF_GLCONFIG		0x0004
+#define SDRAM_OFF_REFRSHTIMR		0x0008
+
+#define SDRAM_OFF_DEVCFG0		0x0010
+#define SDRAM_OFF_DEVCFG1		0x0014
+#define SDRAM_OFF_DEVCFG2		0x0018
+#define SDRAM_OFF_DEVCFG3		0x001C
+
+#define SDRAM_DEVCFG0_BASE		0xC0000000
+#define SDRAM_DEVCFG1_BASE		0xD0000000
+#define SDRAM_DEVCFG2_BASE		0xE0000000
+#define SDRAM_DEVCFG3_ASD0_BASE		0xF0000000
+#define SDRAM_DEVCFG3_ASD1_BASE		0x00000000
+
 #define GLCONFIG_INIT			(1 << 0)
 #define GLCONFIG_MRS			(1 << 1)
 #define GLCONFIG_SMEMBUSY		(1 << 5)
@@ -295,6 +312,43 @@ struct sdram_regs {
 #define GLCONFIG_CLKSHUTDOWN		(1 << 30)
 #define GLCONFIG_CKE			(1 << 31)
 
+#define EP93XX_SDRAMCTRL			0x80060000
+#define EP93XX_SDRAMCTRL_GLOBALCFG_INIT		0x00000001
+#define EP93XX_SDRAMCTRL_GLOBALCFG_MRS		0x00000002
+#define EP93XX_SDRAMCTRL_GLOBALCFG_SMEMBUSY	0x00000020
+#define EP93XX_SDRAMCTRL_GLOBALCFG_LCR		0x00000040
+#define EP93XX_SDRAMCTRL_GLOBALCFG_REARBEN	0x00000080
+#define EP93XX_SDRAMCTRL_GLOBALCFG_CLKSHUTDOWN	0x40000000
+#define EP93XX_SDRAMCTRL_GLOBALCFG_CKE		0x80000000
+
+#define EP93XX_SDRAMCTRL_REFRESH_MASK		0x0000FFFF
+
+#define EP93XX_SDRAMCTRL_BOOTSTATUS_WIDTH_32	0x00000002
+#define EP93XX_SDRAMCTRL_BOOTSTATUS_WIDTH_16	0x00000001
+#define EP93XX_SDRAMCTRL_BOOTSTATUS_WIDTH_8	0x00000000
+#define EP93XX_SDRAMCTRL_BOOTSTATUS_WIDTH_MASK	0x00000003
+#define EP93XX_SDRAMCTRL_BOOTSTATUS_MEDIA	0x00000004
+
+#define EP93XX_SDRAMCTRL_DEVCFG_EXTBUSWIDTH	0x00000004
+#define EP93XX_SDRAMCTRL_DEVCFG_BANKCOUNT	0x00000008
+#define EP93XX_SDRAMCTRL_DEVCFG_SROM512		0x00000010
+#define EP93XX_SDRAMCTRL_DEVCFG_SROMLL		0x00000020
+#define EP93XX_SDRAMCTRL_DEVCFG_2KPAGE		0x00000040
+#define EP93XX_SDRAMCTRL_DEVCFG_SFCONFIGADDR	0x00000080
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_MASK	0x00070000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_2	0x00010000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_3	0x00020000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_4	0x00030000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_5	0x00040000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_6	0x00050000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_7	0x00060000
+#define EP93XX_SDRAMCTRL_DEVCFG_CASLAT_8	0x00070000
+#define EP93XX_SDRAMCTRL_DEVCFG_WBL		0x00080000
+#define EP93XX_SDRAMCTRL_DEVCFG_RASTOCAS_MASK	0x00300000
+#define EP93XX_SDRAMCTRL_DEVCFG_RASTOCAS_2	0x00200000
+#define EP93XX_SDRAMCTRL_DEVCFG_RASTOCAS_3	0x00300000
+#define EP93XX_SDRAMCTRL_DEVCFG_AUTOPRECHARGE	0x01000000
+
 /*
  * 0x80070000 - 0x8007FFFF: Reserved
  */
@@ -324,6 +378,13 @@ struct smc_regs {
 };
 #endif
 
+#define EP93XX_OFF_SMCBCR0		0x00
+#define EP93XX_OFF_SMCBCR1		0x04
+#define EP93XX_OFF_SMCBCR2		0x08
+#define EP93XX_OFF_SMCBCR3		0x0C
+#define EP93XX_OFF_SMCBCR6		0x18
+#define EP93XX_OFF_SMCBCR7		0x1C
+
 #define SMC_BCR_IDCY_SHIFT	0
 #define SMC_BCR_WST1_SHIFT	5
 #define SMC_BCR_BLE		(1 << 10)
@@ -445,6 +506,14 @@ struct gpio_regs {
 };
 #endif
 
+#define EP93XX_LED_DATA		0x80840020
+#define EP93XX_LED_GREEN_ON	0x0001
+#define EP93XX_LED_RED_ON	0x0002
+
+#define EP93XX_LED_DDR		0x80840024
+#define EP93XX_LED_GREEN_ENABLE	0x0001
+#define EP93XX_LED_RED_ENABLE	0x00020000
+
 /*
  * 0x80850000 - 0x8087FFFF: Reserved
  */
@@ -519,6 +588,9 @@ struct gpio_regs {
 #define SYSCON_OFFSET		0x930000
 #define SYSCON_BASE		(EP93XX_APB_BASE | SYSCON_OFFSET)
 
+/* Security */
+#define SECURITY_EXTENSIONID	0x80832714
+
 #ifndef __ASSEMBLY__
 struct syscon_regs {
 	uint32_t pwrsts;
@@ -553,7 +625,11 @@ struct syscon_regs {
 #define SYSCON_SCRATCH0		(SYSCON_BASE + 0x0040)
 #endif
 
+#define SYSCON_OFF_CLKSET1			0x0020
+#define SYSCON_OFF_SYSCFG			0x009c
+
 #define SYSCON_PWRCNT_UART_BAUD			(1 << 29)
+#define SYSCON_PWRCNT_USH_EN			(1 << 28)
 
 #define SYSCON_CLKSET_PLL_X2IPD_SHIFT		0
 #define SYSCON_CLKSET_PLL_X2FBD2_SHIFT		5
@@ -571,6 +647,8 @@ struct syscon_regs {
 #define SYSCON_CHIPID_REV_MASK			0xF0000000
 #define SYSCON_DEVICECFG_SWRST			(1 << 31)
 
+#define SYSCON_SYSCFG_LASDO			0x00000020
+
 /*
  * 0x80930000 - 0x8093FFFF: Watchdog Timer
  */
@@ -580,3 +658,10 @@ struct syscon_regs {
 /*
  * 0x80950000 - 0x9000FFFF: Reserved
  */
+
+/*
+ * During low_level init we store memory layout in memory at specific location
+ */
+#define UBOOT_MEMORYCNF_BANK_SIZE		0x2000
+#define UBOOT_MEMORYCNF_BANK_MASK		0x2004
+#define UBOOT_MEMORYCNF_BANK_COUNT		0x2008