Merge branch 'master' of git://git.denx.de/u-boot-arm

3 files changed, 172 insertions, 57 deletions

diff --git a/board/davedenx/qong/lowlevel_init.S b/board/davedenx/qong/lowlevel_init.S
index 198dd76..80bed92 100644
--- a/board/davedenx/qong/lowlevel_init.S
+++ b/board/davedenx/qong/lowlevel_init.S
@@ -42,6 +42,27 @@
 	bcs 1b
 .endm
 
+.macro SETUP_RAM cfg, ctl
+	/* B8xxxxxx - NAND, 8xxxxxxx - CSD0 RAM */
+	REG	0xB8001010, 0x00000004
+	ldr r3, =\cfg
+	ldr r2, =WEIM_ESDCFG0
+	str r3, [r2]
+	REG	0xB8001000, 0x92100000
+	REG	0x80000f00, 0x12344321
+	REG	0xB8001000, 0xa2100000
+	REG	0x80000000, 0x12344321
+	REG	0x80000000, 0x12344321
+	REG	0xB8001000, 0xb2100000
+	REG8	0x80000033, 0xda
+	REG8	0x81000000, 0xff
+	ldr r3, =\ctl
+	ldr r2, =WEIM_ESDCTL0
+	str r3, [r2]
+	REG	0x80000000, 0xDEADBEEF
+	REG	0xB8001010, 0x0000000c
+
+.endm
 /* RedBoot: To support 133MHz DDR */
 .macro init_drive_strength
 	/*
@@ -130,43 +151,86 @@ lowlevel_init:
 	/* Default: 1, 4, 12, 1 */
 	REG	CCM_SPCTL, PLL_PD(1) | PLL_MFD(4) | PLL_MFI(12) | PLL_MFN(1)
 
-	/* B8xxxxxx - NAND, 8xxxxxxx - CSD0 RAM */
-	REG	0xB8001010, 0x00000004
-	REG	0xB8001004, ((3 << 21) | /* tXP */	\
-			     (0 << 20) | /* tWTR */	\
-			     (2 << 18) | /* tRP */	\
-			     (1 << 16) | /* tMRD */	\
-			     (0 << 15) | /* tWR */	\
-			     (5 << 12) | /* tRAS */	\
-			     (1 << 10) | /* tRRD */	\
-			     (3 << 8)  | /* tCAS */	\
-			     (2 << 4)  | /* tRCD */	\
-			     (7 << 0)    /* tRC */ )
-	REG	0xB8001000, 0x92100000
-	REG	0x80000f00, 0x12344321
-	REG	0xB8001000, 0xa2100000
-	REG	0x80000000, 0x12344321
-	REG	0x80000000, 0x12344321
-	REG	0xB8001000, 0xb2100000
-	REG8	0x80000033, 0xda
-	REG8	0x81000000, 0xff
-	REG	0xB8001000, ((1 << 31) |				\
-			     (0 << 28) |				\
-			     (0 << 27) |				\
-			     (3 << 24) | /* 14 rows */			\
-			     (2 << 20) | /* 10 cols */			\
-			     (2 << 16) |				\
-			     (4 << 13) | /* 3.91us (64ms/16384) */	\
-			     (0 << 10) |				\
-			     (0 << 8)  |				\
-			     (1 << 7)  |				\
-			     (0 << 0))
-	REG	0x80000000, 0xDEADBEEF
-	REG	0xB8001010, 0x0000000c
+check_ddr_module:
+/* Set stackpointer in internal RAM to call get_ram_size */
+	ldr	sp, =(IRAM_BASE_ADDR + IRAM_SIZE - 16)
+	stmfd	sp!, {r0-r11, ip, lr}
+	mov	ip, lr		/* save link reg across call */
+
+	ldr	r0,=0x08000000
+	SETUP_RAM	ESDCFG0_256MB, ESDCTL0_256MB
+	ldr	r0,=0x80000000
+	ldr	r1,=0x10000000
+	bl	get_ram_size
+	ldr	r1,=0x10000000
+	cmp	r0,r1
+	beq	restore_regs
+	SETUP_RAM	ESDCFG0_128MB, ESDCTL0_128MB
+	ldr	r0,=0x80000000
+	ldr	r1,=0x08000000
+	bl	get_ram_size
+	ldr	r1,=0x08000000
+	cmp	r0,r1
+	beq	restore_regs
+
+restore_regs:
+	ldmfd	sp!, {r0-r11, ip, lr}
+	mov	lr, ip		/* restore link reg */
 
 	mov	pc, lr
 
+
 MPCTL_PARAM_399:
 	.word (((1 - 1) << 26) + ((52 - 1) << 16) + (7 << 10) + (35 << 0))
 UPCTL_PARAM_240:
 	.word (((2 - 1) << 26) + ((13 - 1) << 16) + (9 << 10) + (3  << 0))
+
+	.equ	ESDCFG0_128MB, \
+		(0 << 21) + /* tXP */ \
+		(1 << 20) + /* tWTR */ \
+		(2 << 18) + /* tRP */ \
+		(1 << 16) + /* tMRD */ \
+		(0 << 15) + /* tWR */ \
+		(5 << 12) + /* tRAS */ \
+		(1 << 10) + /* tRRD */ \
+		(3 << 8) + /* tCAS */ \
+		(2 << 4) + /* tRCD */ \
+		(0x0F << 0) /* tRC */
+
+	.equ	ESDCTL0_128MB, \
+		(1 << 31)  +	/* enable */ \
+		(0 << 28)  +	/* mode */ \
+		(0 << 27)  +	/* supervisor protect */ \
+		(2 << 24)  +	/* 13 rows */ \
+		(2 << 20)  +	/* 10 cols */ \
+		(2 << 16)  +	/* 32 bit */ \
+		(3 << 13)  +	/* 7.81us (64ms/8192) */ \
+		(0 << 10)  +	/* power down timer */ \
+		(0 << 8)  +	/* full page */ \
+		(1 << 7)  +	/* burst length */ \
+		(0 << 0)	/* precharge timer */
+
+	.equ	ESDCFG0_256MB, \
+		(3 << 21)  + 	/* tXP */ \
+		(0 << 20)  + 	/* tWTR */ \
+		(2 << 18)  + 	/* tRP */ \
+		(1 << 16)  + 	/* tMRD */ \
+		(0 << 15)  + 	/* tWR */ \
+		(5 << 12)  + 	/* tRAS */ \
+		(1 << 10)  + 	/* tRRD */ \
+		(3 << 8)   + 	/* tCAS */ \
+		(2 << 4)   +	/* tRCD */ \
+		(7 << 0)	/* tRC */
+
+	.equ	ESDCTL0_256MB, \
+		(1 << 31)  + \
+		(0 << 28)  + \
+		(0 << 27)  + \
+		(3 << 24)  + /* 14 rows */ \
+		(2 << 20)  + /* 10 cols */ \
+		(2 << 16)  + \
+		(4 << 13)  + /* 3.91us (64ms/16384) */ \
+		(0 << 10)  + \
+		(0 << 8)   + \
+		(1 << 7)   + \
+		(0 << 0)
diff --git a/board/davedenx/qong/qong.c b/board/davedenx/qong/qong.c
index b801150..eb9218e 100644
--- a/board/davedenx/qong/qong.c
+++ b/board/davedenx/qong/qong.c
@@ -25,6 +25,7 @@
 #include <netdev.h>
 #include <asm/arch/mx31.h>
 #include <asm/arch/mx31-regs.h>
+#include <nand.h>
 #include "qong_fpga.h"
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -38,6 +39,15 @@ int dram_init (void)
 	return 0;
 }
 
+static void qong_fpga_reset(void)
+{
+	mx31_gpio_set(QONG_FPGA_RST_PIN, 0);
+	udelay(30);
+	mx31_gpio_set(QONG_FPGA_RST_PIN, 1);
+
+	udelay(300);
+}
+
 int board_init (void)
 {
 	/* Chip selects */
@@ -101,6 +111,15 @@ int board_init (void)
 	mx31_gpio_mux(IOMUX_MODE(0x91, MUX_CTL_OUT_FUNC | MUX_CTL_IN_GPIO));
 	mx31_gpio_mux(IOMUX_MODE(0x92, MUX_CTL_GPIO));
 	mx31_gpio_mux(IOMUX_MODE(0x93, MUX_CTL_GPIO));
+
+	/* FPGA reset  Pin */
+	/* rstn = 0 */
+	mx31_gpio_set(QONG_FPGA_RST_PIN, 0);
+	mx31_gpio_direction(QONG_FPGA_RST_PIN, MX31_GPIO_DIRECTION_OUT);
+
+	/* set interrupt pin as input */
+	mx31_gpio_direction(QONG_FPGA_IRQ_PIN, MX31_GPIO_DIRECTION_IN);
+
 #endif
 
 	/* setup pins for UART1 */
@@ -118,7 +137,7 @@ int board_init (void)
 
 int checkboard (void)
 {
-	printf("Board: DAVE/DENX QongEVB-LITE\n");
+	printf("Board: DAVE/DENX Qong\n");
 	return 0;
 }
 
@@ -127,32 +146,11 @@ int misc_init_r (void)
 #ifdef CONFIG_QONG_FPGA
 	u32 tmp;
 
-	/* FPGA reset */
-	/* rstn = 0 */
-	tmp = __REG(GPIO2_BASE + GPIO_DR);
-	tmp &= (~(1 << QONG_FPGA_RST_PIN));
-	__REG(GPIO2_BASE + GPIO_DR) = tmp;
-	/* set the GPIO as output */
-	tmp = __REG(GPIO2_BASE + GPIO_GDIR);
-	tmp |= (1 << QONG_FPGA_RST_PIN);
-	__REG(GPIO2_BASE + GPIO_GDIR) = tmp;
-	/* wait */
-	udelay(30);
-	/* rstn = 1 */
-	tmp = __REG(GPIO2_BASE + GPIO_DR);
-	tmp |= (1 << QONG_FPGA_RST_PIN);
-	__REG(GPIO2_BASE + GPIO_DR) = tmp;
-	/* set interrupt pin as input */
-	__REG(GPIO2_BASE + GPIO_GDIR) = tmp | (1 << QONG_FPGA_IRQ_PIN);
-	/* wait while the FPGA starts */
-	udelay(300);
-
 	tmp = *(volatile u32*)QONG_FPGA_CTRL_VERSION;
 	printf("FPGA:  ");
 	printf("version register = %u.%u.%u\n",
 		(tmp & 0xF000) >> 12, (tmp & 0x0F00) >> 8, tmp & 0x00FF);
 #endif
-
 	return 0;
 }
 
@@ -164,3 +162,56 @@ int board_eth_init(bd_t *bis)
 	return 0;
 #endif
 }
+
+#if defined(CONFIG_QONG_FPGA) && defined(CONFIG_NAND_PLAT)
+static void board_nand_setup(void)
+{
+
+	/* CS3: NAND 8-bit */
+	__REG(CSCR_U(3)) = 0x00004f00;
+	__REG(CSCR_L(3)) = 0x20013b31;
+	__REG(CSCR_A(3)) = 0x00020800;
+	__REG(IOMUXC_GPR) |= 1 << 13;
+
+	mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_WP, MUX_CTL_IN_GPIO));
+	mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_CE, MUX_CTL_IN_GPIO));
+	mx31_gpio_mux(IOMUX_MODE(MUX_CTL_NFC_RB, MUX_CTL_IN_GPIO));
+
+	/* Make sure to reset the fpga else you cannot access NAND */
+	qong_fpga_reset();
+
+	/* Enable NAND flash */
+	mx31_gpio_set(15, 1);
+	mx31_gpio_set(14, 1);
+	mx31_gpio_direction(15, MX31_GPIO_DIRECTION_OUT);
+	mx31_gpio_direction(16, MX31_GPIO_DIRECTION_IN);
+	mx31_gpio_direction(14, MX31_GPIO_DIRECTION_IN);
+	mx31_gpio_set(15, 0);
+
+}
+
+int qong_nand_rdy(void *chip)
+{
+	udelay(1);
+	return mx31_gpio_get(16);
+}
+
+void qong_nand_select_chip(struct mtd_info *mtd, int chip)
+{
+	if (chip >= 0)
+		mx31_gpio_set(15, 0);
+	else
+		mx31_gpio_set(15, 1);
+
+}
+
+void qong_nand_plat_init(void *chip)
+{
+	struct nand_chip *nand = (struct nand_chip *)chip;
+	nand->chip_delay = 20;
+	nand->select_chip = qong_nand_select_chip;
+	nand->options &= ~NAND_BUSWIDTH_16;
+	board_nand_setup();
+}
+
+#endif
diff --git a/board/davedenx/qong/qong_fpga.h b/board/davedenx/qong/qong_fpga.h
index e8042b1..4e11f5a 100644
--- a/board/davedenx/qong/qong_fpga.h
+++ b/board/davedenx/qong/qong_fpga.h
@@ -33,8 +33,8 @@
 #define	QONG_FPGA_TMS_PIN		25
 #define	QONG_FPGA_TDI_PIN		8
 #define	QONG_FPGA_TDO_PIN		7
-#define	QONG_FPGA_RST_PIN		16
-#define	QONG_FPGA_IRQ_PIN		8
+#define	QONG_FPGA_RST_PIN		48
+#define	QONG_FPGA_IRQ_PIN		40
 #endif
 
 #endif /* QONG_FPGA_H */