Merge branch 'u-boot-samsung/master' into 'u-boot-arm/master'

8 files changed, 130 insertions, 12 deletions

diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index 36fedd630c..84a50470aa 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -1410,7 +1410,8 @@ void set_mmc_clk(int dev_index, unsigned int div)
 	else {
 		if (proid_is_exynos4412())
 			exynos4x12_set_mmc_clk(dev_index, div);
-		exynos4_set_mmc_clk(dev_index, div);
+		else
+			exynos4_set_mmc_clk(dev_index, div);
 	}
 }
 
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c
index 8002bce79c..74cc7009ff 100644
--- a/arch/arm/cpu/armv7/exynos/pinmux.c
+++ b/arch/arm/cpu/armv7/exynos/pinmux.c
@@ -462,7 +462,7 @@ static int exynos4_pinmux_config(int peripheral, int flags)
 	case PERIPH_ID_SDMMC1:
 	case PERIPH_ID_SDMMC3:
 	case PERIPH_ID_SDMMC4:
-		printf("SDMMC device %d not implemented\n", peripheral);
+		debug("SDMMC device %d not implemented\n", peripheral);
 		return -1;
 	default:
 		debug("%s: invalid peripheral %d", __func__, peripheral);
diff --git a/arch/arm/cpu/armv7/exynos/spl_boot.c b/arch/arm/cpu/armv7/exynos/spl_boot.c
index 3651c00859..ade45fd5d3 100644
--- a/arch/arm/cpu/armv7/exynos/spl_boot.c
+++ b/arch/arm/cpu/armv7/exynos/spl_boot.c
@@ -10,8 +10,11 @@
 #include <asm/arch/clock.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/dmc.h>
+#include <asm/arch/periph.h>
+#include <asm/arch/pinmux.h>
 #include <asm/arch/power.h>
 #include <asm/arch/spl.h>
+#include <asm/arch/spi.h>
 
 #include "common_setup.h"
 #include "clock_init.h"
@@ -59,6 +62,121 @@ static int config_branch_prediction(int set_cr_z)
 }
 #endif
 
+#ifdef CONFIG_SPI_BOOTING
+static void spi_rx_tx(struct exynos_spi *regs, int todo,
+			void *dinp, void const *doutp, int i)
+{
+	uint *rxp = (uint *)(dinp + (i * (32 * 1024)));
+	int rx_lvl, tx_lvl;
+	uint out_bytes, in_bytes;
+
+	out_bytes = todo;
+	in_bytes = todo;
+	setbits_le32(&regs->ch_cfg, SPI_CH_RST);
+	clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+	writel(((todo * 8) / 32) | SPI_PACKET_CNT_EN, &regs->pkt_cnt);
+
+	while (in_bytes) {
+		uint32_t spi_sts;
+		int temp;
+
+		spi_sts = readl(&regs->spi_sts);
+		rx_lvl = ((spi_sts >> 15) & 0x7f);
+		tx_lvl = ((spi_sts >> 6) & 0x7f);
+		while (tx_lvl < 32 && out_bytes) {
+			temp = 0xffffffff;
+			writel(temp, &regs->tx_data);
+			out_bytes -= 4;
+			tx_lvl += 4;
+		}
+		while (rx_lvl >= 4 && in_bytes) {
+			temp = readl(&regs->rx_data);
+			if (rxp)
+				*rxp++ = temp;
+			in_bytes -= 4;
+			rx_lvl -= 4;
+		}
+	}
+}
+
+/*
+ * Copy uboot from spi flash to RAM
+ *
+ * @parma uboot_size	size of u-boot to copy
+ * @param uboot_addr	address in u-boot to copy
+ */
+static void exynos_spi_copy(unsigned int uboot_size, unsigned int uboot_addr)
+{
+	int upto, todo;
+	int i, timeout = 100;
+	struct exynos_spi *regs = (struct exynos_spi *)CONFIG_ENV_SPI_BASE;
+
+	set_spi_clk(PERIPH_ID_SPI1, 50000000); /* set spi clock to 50Mhz */
+	/* set the spi1 GPIO */
+	exynos_pinmux_config(PERIPH_ID_SPI1, PINMUX_FLAG_NONE);
+
+	/* set pktcnt and enable it */
+	writel(4 | SPI_PACKET_CNT_EN, &regs->pkt_cnt);
+	/* set FB_CLK_SEL */
+	writel(SPI_FB_DELAY_180, &regs->fb_clk);
+	/* set CH_WIDTH and BUS_WIDTH as word */
+	setbits_le32(&regs->mode_cfg, SPI_MODE_CH_WIDTH_WORD |
+					SPI_MODE_BUS_WIDTH_WORD);
+	clrbits_le32(&regs->ch_cfg, SPI_CH_CPOL_L); /* CPOL: active high */
+
+	/* clear rx and tx channel if set priveously */
+	clrbits_le32(&regs->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON);
+
+	setbits_le32(&regs->swap_cfg, SPI_RX_SWAP_EN |
+			SPI_RX_BYTE_SWAP |
+			SPI_RX_HWORD_SWAP);
+
+	/* do a soft reset */
+	setbits_le32(&regs->ch_cfg, SPI_CH_RST);
+	clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+
+	/* now set rx and tx channel ON */
+	setbits_le32(&regs->ch_cfg, SPI_RX_CH_ON | SPI_TX_CH_ON | SPI_CH_HS_EN);
+	clrbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT); /* CS low */
+
+	/* Send read instruction (0x3h) followed by a 24 bit addr */
+	writel((SF_READ_DATA_CMD << 24) | SPI_FLASH_UBOOT_POS, &regs->tx_data);
+
+	/* waiting for TX done */
+	while (!(readl(&regs->spi_sts) & SPI_ST_TX_DONE)) {
+		if (!timeout) {
+			debug("SPI TIMEOUT\n");
+			break;
+		}
+		timeout--;
+	}
+
+	for (upto = 0, i = 0; upto < uboot_size; upto += todo, i++) {
+		todo = min(uboot_size - upto, (1 << 15));
+		spi_rx_tx(regs, todo, (void *)(uboot_addr),
+			  (void *)(SPI_FLASH_UBOOT_POS), i);
+	}
+
+	setbits_le32(&regs->cs_reg, SPI_SLAVE_SIG_INACT);/* make the CS high */
+
+	/*
+	 * Let put controller mode to BYTE as
+	 * SPI driver does not support WORD mode yet
+	 */
+	clrbits_le32(&regs->mode_cfg, SPI_MODE_CH_WIDTH_WORD |
+					SPI_MODE_BUS_WIDTH_WORD);
+	writel(0, &regs->swap_cfg);
+
+	/*
+	 * Flush spi tx, rx fifos and reset the SPI controller
+	 * and clear rx/tx channel
+	 */
+	clrsetbits_le32(&regs->ch_cfg, SPI_CH_HS_EN, SPI_CH_RST);
+	clrbits_le32(&regs->ch_cfg, SPI_CH_RST);
+	clrbits_le32(&regs->ch_cfg, SPI_TX_CH_ON | SPI_RX_CH_ON);
+}
+#endif
+
 /*
 * Copy U-boot from mmc to RAM:
 * COPY_BL2_FNPTR_ADDR: Address in iRAM, which Contains
@@ -70,6 +188,9 @@ void copy_uboot_to_ram(void)
 
 	u32 (*copy_bl2)(u32 offset, u32 nblock, u32 dst) = NULL;
 	u32 offset = 0, size = 0;
+#ifdef CONFIG_SPI_BOOTING
+	struct spl_machine_param *param = spl_get_machine_params();
+#endif
 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 	u32 (*copy_bl2_from_emmc)(u32 nblock, u32 dst);
 	void (*end_bootop_from_emmc)(void);
@@ -91,9 +212,8 @@ void copy_uboot_to_ram(void)
 	switch (bootmode) {
 #ifdef CONFIG_SPI_BOOTING
 	case BOOT_MODE_SERIAL:
-		offset = SPI_FLASH_UBOOT_POS;
-		size = CONFIG_BL2_SIZE;
-		copy_bl2 = get_irom_func(SPI_INDEX);
+		/* Customised function to copy u-boot from SF */
+		exynos_spi_copy(param->uboot_size, CONFIG_SYS_TEXT_BASE);
 		break;
 #endif
 	case BOOT_MODE_MMC:
diff --git a/arch/arm/include/asm/arch-exynos/dwmmc.h b/arch/arm/include/asm/arch-exynos/dwmmc.h
index d1c5d4f26a..09d739dfca 100644
--- a/arch/arm/include/asm/arch-exynos/dwmmc.h
+++ b/arch/arm/include/asm/arch-exynos/dwmmc.h
@@ -6,10 +6,6 @@
  */
 
 #define DWMCI_CLKSEL		0x09C
-#define DWMCI_SHIFT_0		0x0
-#define DWMCI_SHIFT_1		0x1
-#define DWMCI_SHIFT_2		0x2
-#define DWMCI_SHIFT_3		0x3
 #define DWMCI_SET_SAMPLE_CLK(x)	(x)
 #define DWMCI_SET_DRV_CLK(x)	((x) << 16)
 #define DWMCI_SET_DIV_RATIO(x)	((x) << 24)
diff --git a/arch/arm/include/asm/arch-exynos/mmc.h b/arch/arm/include/asm/arch-exynos/mmc.h
index 98312d1c3c..98d6530b15 100644
--- a/arch/arm/include/asm/arch-exynos/mmc.h
+++ b/arch/arm/include/asm/arch-exynos/mmc.h
@@ -55,7 +55,7 @@
 
 int s5p_sdhci_init(u32 regbase, int index, int bus_width);
 
-static inline unsigned int s5p_mmc_init(int index, int bus_width)
+static inline int s5p_mmc_init(int index, int bus_width)
 {
 	unsigned int base = samsung_get_base_mmc() +
 				(S5P_MMC_DEV_OFFSET * index);
diff --git a/arch/arm/include/asm/arch-exynos/power.h b/arch/arm/include/asm/arch-exynos/power.h
index 8db18c545c..2bfee18eb7 100644
--- a/arch/arm/include/asm/arch-exynos/power.h
+++ b/arch/arm/include/asm/arch-exynos/power.h
@@ -16,7 +16,7 @@ struct exynos4_power {
 	unsigned int	gnss_rtc_out_ctrl;
 	unsigned char	res2[0x1ec];
 	unsigned int	system_power_down_ctrl;
-	unsigned char	res3[0x1];
+	unsigned int	res3;
 	unsigned int	system_power_down_option;
 	unsigned char	res4[0x1f4];
 	unsigned int	swreset;
diff --git a/arch/arm/include/asm/arch-exynos/spi.h b/arch/arm/include/asm/arch-exynos/spi.h
index 147c1a7304..0ba931b7e3 100644
--- a/arch/arm/include/asm/arch-exynos/spi.h
+++ b/arch/arm/include/asm/arch-exynos/spi.h
@@ -30,6 +30,7 @@ struct exynos_spi {
 #define EXYNOS_SPI_MAX_FREQ	50000000
 
 #define SPI_TIMEOUT_MS		10
+#define SF_READ_DATA_CMD	0x3
 
 /* SPI_CHCFG */
 #define SPI_CH_HS_EN		(1 << 6)
diff --git a/arch/arm/include/asm/arch-s5pc1xx/mmc.h b/arch/arm/include/asm/arch-s5pc1xx/mmc.h
index 55ff10b23c..dd473c8ecd 100644
--- a/arch/arm/include/asm/arch-s5pc1xx/mmc.h
+++ b/arch/arm/include/asm/arch-s5pc1xx/mmc.h
@@ -55,7 +55,7 @@
 
 int s5p_sdhci_init(u32 regbase, int index, int bus_width);
 
-static inline unsigned int s5p_mmc_init(int index, int bus_width)
+static inline int s5p_mmc_init(int index, int bus_width)
 {
 	unsigned int base = samsung_get_base_mmc() +
 				 (S5P_MMC_DEV_OFFSET * index);