SPL: ARM: spear: Add SPL support for SPEAr600 platform

This patch adds SPL support for SPEAr600. Currently only SNOR
(Serial NOR) flash support is included. Other boot devices
(NAND, MMC, USB ...) may be added with later patches.

Tested on the STM SPEAr600 evaluation and x600 SPEAr600 boards.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Amit Virdi <amit.virdi@st.com>
Cc: Vipin Kumar <vipin.kumar@st.com>

1 files changed, 135 insertions, 1 deletions

diff --git a/arch/arm/include/asm/arch-spear/spr_misc.h b/arch/arm/include/asm/arch-spear/spr_misc.h
index b8fcf49feb..5f67a5fa20 100644
--- a/arch/arm/include/asm/arch-spear/spr_misc.h
+++ b/arch/arm/include/asm/arch-spear/spr_misc.h
@@ -46,7 +46,7 @@ struct misc_regs {
 	u32 prsc2_clk_cfg;	/* 0x48 */
 	u32 prsc3_clk_cfg;	/* 0x4C */
 	u32 amem_cfg_ctrl;	/* 0x50 */
-	u32 port_cfg_ctrl;	/* 0x54 */
+	u32 expi_clk_cfg;	/* 0x54 */
 	u32 reserved_1;		/* 0x58 */
 	u32 clcd_synth_clk;	/* 0x5C */
 	u32 irda_synth_clk;	/* 0x60 */
@@ -101,6 +101,37 @@ struct misc_regs {
 	u32 ras_gpp2_out;	/* 0x800C */
 };
 
+/* SYNTH_CLK value*/
+#define SYNTH23			0x00020003
+
+/* PLLx_FRQ value */
+#if defined(CONFIG_SPEAR3XX)
+#define FREQ_332		0xA600010C
+#define FREQ_266		0x8500010C
+#elif defined(CONFIG_SPEAR600)
+#define FREQ_332		0xA600010F
+#define FREQ_266		0x8500010F
+#endif
+
+/* PLL_CTR_REG   */
+#define MEM_CLK_SEL_MSK		0x70000000
+#define MEM_CLK_HCLK		0x00000000
+#define MEM_CLK_2HCLK		0x10000000
+#define MEM_CLK_PLL2		0x30000000
+
+#define EXPI_CLK_CFG_LOW_COMPR	0x2000
+#define EXPI_CLK_CFG_CLK_EN	0x0400
+#define EXPI_CLK_CFG_RST	0x0200
+#define EXPI_CLK_SYNT_EN	0x0010
+#define EXPI_CLK_CFG_SEL_PLL2	0x0004
+#define EXPI_CLK_CFG_INT_CLK_EN	0x0001
+
+#define PLL2_CNTL_6UA		0x1c00
+#define PLL2_CNTL_SAMPLE	0x0008
+#define PLL2_CNTL_ENABLE	0x0004
+#define PLL2_CNTL_RESETN	0x0002
+#define PLL2_CNTL_LOCK		0x0001
+
 /* AUTO_CFG_REG value */
 #define MISC_SOCCFGMSK                  0x0000003F
 #define MISC_SOCCFG30                   0x0000000C
@@ -131,9 +162,112 @@ struct misc_regs {
 #define MISC_ETHENB			0x00800000
 #define MISC_SMIENB			0x00200000
 #define MISC_GPT3ENB			0x00010000
+#define MISC_GPIO4ENB			0x00002000
 #define MISC_GPT2ENB			0x00000800
 #define MISC_FSMCENB			0x00000200
 #define MISC_I2CENB			0x00000080
+#define MISC_SSP2ENB			0x00000070
 #define MISC_UART0ENB			0x00000008
 
+/*   PERIPH_CLK_CFG   */
+#define  XTALTIMEEN		0x00000001
+#define  PLLTIMEEN		0x00000002
+#define  CLCDCLK_SYNTH		0x00000000
+#define  CLCDCLK_48MHZ		0x00000004
+#define  CLCDCLK_EXT		0x00000008
+#define  UARTCLK_MASK		(0x1 << 4)
+#define  UARTCLK_48MHZ		0x00000000
+#define  UARTCLK_SYNTH		0x00000010
+#define  IRDACLK_48MHZ		0x00000000
+#define  IRDACLK_SYNTH		0x00000020
+#define  IRDACLK_EXT		0x00000040
+#define  RTC_DISABLE		0x00000080
+#define  GPT1CLK_48MHZ		0x00000000
+#define  GPT1CLK_SYNTH		0x00000100
+#define  GPT2CLK_48MHZ		0x00000000
+#define  GPT2CLK_SYNTH		0x00000200
+#define  GPT3CLK_48MHZ		0x00000000
+#define  GPT3CLK_SYNTH		0x00000400
+#define  GPT4CLK_48MHZ		0x00000000
+#define  GPT4CLK_SYNTH		0x00000800
+#define  GPT5CLK_48MHZ		0x00000000
+#define  GPT5CLK_SYNTH		0x00001000
+#define  GPT1_FREEZE		0x00002000
+#define  GPT2_FREEZE		0x00004000
+#define  GPT3_FREEZE		0x00008000
+#define  GPT4_FREEZE		0x00010000
+#define  GPT5_FREEZE		0x00020000
+
+/*  PERIPH1_CLKEN bits  */
+#define PERIPH_ARM1_WE		0x00000001
+#define PERIPH_ARM1		0x00000002
+#define PERIPH_ARM2		0x00000004
+#define PERIPH_UART1		0x00000008
+#define PERIPH_UART2		0x00000010
+#define PERIPH_SSP1		0x00000020
+#define PERIPH_SSP2		0x00000040
+#define PERIPH_I2C		0x00000080
+#define PERIPH_JPEG		0x00000100
+#define PERIPH_FSMC		0x00000200
+#define PERIPH_FIRDA		0x00000400
+#define PERIPH_GPT4		0x00000800
+#define PERIPH_GPT5		0x00001000
+#define PERIPH_GPIO4		0x00002000
+#define PERIPH_SSP3		0x00004000
+#define PERIPH_ADC		0x00008000
+#define PERIPH_GPT3		0x00010000
+#define PERIPH_RTC		0x00020000
+#define PERIPH_GPIO3		0x00040000
+#define PERIPH_DMA		0x00080000
+#define PERIPH_ROM		0x00100000
+#define PERIPH_SMI		0x00200000
+#define PERIPH_CLCD		0x00400000
+#define PERIPH_GMAC		0x00800000
+#define PERIPH_USBD		0x01000000
+#define PERIPH_USBH1		0x02000000
+#define PERIPH_USBH2		0x04000000
+#define PERIPH_MPMC		0x08000000
+#define PERIPH_RAMW		0x10000000
+#define PERIPH_MPMC_EN		0x20000000
+#define PERIPH_MPMC_WE		0x40000000
+#define PERIPH_MPMCMSK		0x60000000
+
+#define PERIPH_CLK_ALL		0x0FFFFFF8
+#define PERIPH_RST_ALL		0x00000004
+
+/* DDR_PAD values */
+#define DDR_PAD_CNF_MSK		0x0000ffff
+#define DDR_PAD_SW_CONF		0x00060000
+#define DDR_PAD_SSTL_SEL	0x00000001
+#define DDR_PAD_DRAM_TYPE	0x00008000
+
+/* DDR_COMP values */
+#define DDR_COMP_ACCURATE	0x00000010
+
+/* SoC revision stuff */
+#define SOC_PRI_SHFT		16
+#define SOC_SEC_SHFT		8
+
+/* Revision definitions */
+#define SOC_SPEAR_NA		0
+
+/*
+ * The definitons have started from
+ * 101 for SPEAr6xx
+ * 201 for SPEAr3xx
+ * 301 for SPEAr13xx
+ */
+#define SOC_SPEAR600_AA		101
+#define SOC_SPEAR600_AB		102
+#define SOC_SPEAR600_BA		103
+#define SOC_SPEAR600_BB		104
+#define SOC_SPEAR600_BC		105
+#define SOC_SPEAR600_BD		106
+
+#define SOC_SPEAR300		201
+#define SOC_SPEAR310		202
+#define SOC_SPEAR320		203
+
+extern int get_socrev(void);
+
 #endif