MLK-12483-4 mx6: Modify drivers to disable fused modules

Add the fuse checking in drivers, when the module is disabled in fuse,
the driver will not work.

Changed drivers: BEE, GPMI, APBH-DMA, ESDHC, FEC, QSPI, ECSPI, I2C,
USB-EHCI, GIS, LCDIF.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 61789a160ae023ba6f7d37da74be957d22505736)

11 files changed, 94 insertions, 8 deletions

diff --git a/arch/arm/cpu/armv7/mx6/bee.c b/arch/arm/cpu/armv7/mx6/bee.c
index d40b584..f84c729 100644
--- a/arch/arm/cpu/armv7/mx6/bee.c
+++ b/arch/arm/cpu/armv7/mx6/bee.c
@@ -11,6 +11,7 @@
 #include <common.h>
 #include <command.h>
 #include <fuse.h>
+#include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -266,7 +267,7 @@ static int region_valid(u32 start, u32 size)
 static int do_bee_init(cmd_tbl_t *cmdtp, int flag, int argc,
 		       char * const argv[])
 {
-	u32 start, size, val;
+	u32 start, size;
 	int ret;
 	struct bee_parameters *p = &para;
 
@@ -279,14 +280,12 @@ static int do_bee_init(cmd_tbl_t *cmdtp, int flag, int argc,
 	if (argc > 5)
 		return CMD_RET_USAGE;
 
-	if (fuse_read(0, 4, &val)) {
-		puts("Can not get fuse bank 0, word 4\n");
-	} else {
-		if (val & (1 << 25)) {
-			puts("BEE disabed in fuse!\n");
-			return CMD_RET_FAILURE;
-		}
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_BEE)) {
+		printf("BEE is fused, disable it!\n");
+		return CMD_RET_FAILURE;
 	}
+#endif
 
 	/* Cache enabled? */
 	if ((get_cr() & (CR_I | CR_C)) != (CR_I | CR_C)) {
diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c
index c65a215..d5c9a7f 100644
--- a/drivers/dma/apbh_dma.c
+++ b/drivers/dma/apbh_dma.c
@@ -574,6 +574,13 @@ void mxs_dma_init(void)
 	struct mxs_apbh_regs *apbh_regs =
 		(struct mxs_apbh_regs *)MXS_APBH_BASE;
 
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_APBHDMA)) {
+		printf("NAND APBH-DMA@0x%x is fused, disable it\n", MXS_APBH_BASE);
+		return;
+	}
+#endif
+
 	mxs_reset_block(&apbh_regs->hw_apbh_ctrl0_reg);
 
 #ifdef CONFIG_APBH_DMA_BURST8
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 7bc6d07..b77caac 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -21,6 +21,7 @@
 #include <asm/io.h>
 #include <i2c.h>
 #include <watchdog.h>
+#include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -525,6 +526,15 @@ void bus_i2c_init(void *base, int speed, int unused,
 	struct i2c_parms *p = srdata->i2c_data;
 	if (!base)
 		return;
+	
+#ifdef CONFIG_MX6
+	if (mx6_i2c_fused((u32)base)) {
+		printf("I2C@0x%x is fused, disable it\n", 
+			(u32)base);
+		return;
+	}
+#endif
+
 	for (;;) {
 		if (!p->base || (p->base == base)) {
 			p->base = base;
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c
index e1fbb33..07fbc46 100644
--- a/drivers/mmc/fsl_esdhc.c
+++ b/drivers/mmc/fsl_esdhc.c
@@ -20,6 +20,7 @@
 #include <fsl_esdhc.h>
 #include <fdt_support.h>
 #include <asm/io.h>
+#include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -612,6 +613,13 @@ int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
 
 	regs = (struct fsl_esdhc *)cfg->esdhc_base;
 
+#ifdef CONFIG_MX6
+	if (mx6_esdhc_fused(cfg->esdhc_base)) {
+		printf("ESDHC@0x%x is fused, disable it\n", cfg->esdhc_base);
+		return -2;
+	}
+#endif
+
 	/* First reset the eSDHC controller */
 	esdhc_reset(regs);
 
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
index 3b55ac2..d81f83c 100644
--- a/drivers/mtd/nand/mxs_nand.c
+++ b/drivers/mtd/nand/mxs_nand.c
@@ -1172,6 +1172,13 @@ int mxs_nand_init(struct mxs_nand_info *info)
 		(struct mxs_bch_regs *)MXS_BCH_BASE;
 	int i = 0, j;
 
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_GPMI)) {
+		printf("NAND GPMI@0x%x is fused, disable it\n", MXS_GPMI_BASE);
+		return -EPERM;
+	}
+#endif
+
 	info->desc = malloc(sizeof(struct mxs_dma_desc *) *
 				MXS_NAND_DMA_DESCRIPTOR_COUNT);
 	if (!info->desc)
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 0743f7b..72ba08d 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -20,6 +20,7 @@
 #include <asm/io.h>
 #include <asm/errno.h>
 #include <linux/compiler.h>
+#include <asm/arch/sys_proto.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -1091,6 +1092,13 @@ int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr)
 #endif
 	int ret;
 
+#ifdef CONFIG_MX6
+	if (mx6_enet_fused(addr)) {
+		printf("Ethernet@0x%x is fused, disable it\n", addr);
+		return -2;
+	}
+#endif
+
 #ifdef CONFIG_MX28
 	/*
 	 * The i.MX28 has two ethernet interfaces, but they are not equal.
diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
index bb5c236..e3777d8 100644
--- a/drivers/spi/fsl_qspi.c
+++ b/drivers/spi/fsl_qspi.c
@@ -13,6 +13,7 @@
 #include <spi.h>
 
 #include <asm/io.h>
+#include <asm/arch/sys_proto.h>
 
 #define QUADSPI_AHBMAP_BANK_MAXSIZE SZ_64M
 
@@ -544,6 +545,13 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 	struct fsl_qspi *q;
 	int ret;
 
+#ifdef CONFIG_MX6
+	if (mx6_qspi_fused(CONFIG_QSPI_BASE)) {
+		printf("QSPI@0x%x is fused, disable it\n", CONFIG_QSPI_BASE);
+		return NULL;
+	}
+#endif
+
 	if (bus > 1) {
 		puts("FSL_QSPI: Not a valid bus !\n");
 		return NULL;
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 0881599..c061145 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -13,6 +13,7 @@
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
 #include <asm/imx-common/spi.h>
+#include <asm/arch/sys_proto.h>
 
 #ifdef CONFIG_MX27
 /* i.MX27 has a completely wrong register layout and register definitions in the
@@ -413,6 +414,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
 		return NULL;
 	}
 
+	if (mx6_ecspi_fused(spi_bases[bus])){
+		printf("ECSPI@0x%lx is fused, disable it\n", spi_bases[bus]);
+		return NULL;
+	}
+
 	mxcs = spi_alloc_slave(struct mxc_spi_slave, bus, cs);
 	if (!mxcs) {
 		puts("mxc_spi: SPI Slave not allocated !\n");
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index 951dd3b..3ec16ec 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -14,6 +14,7 @@
 #include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
 #include <asm/imx-common/iomux-v3.h>
+#include <asm/arch/sys_proto.h>
 
 #include "ehci.h"
 
@@ -234,6 +235,13 @@ int ehci_hcd_init(int index, enum usb_init_type init,
 
 	if (index > 3)
 		return -EINVAL;
+
+	if (mx6_usb_fused(USB_BASE_ADDR + (0x200 * index))) {
+		printf("USB@0x%x is fused, disable it\n", 
+			USB_BASE_ADDR + (0x200 * index));
+		return -2;
+	}
+	
 	enable_usboh3_clk(1);
 	mdelay(1);
 
diff --git a/drivers/video/mxc_gis.c b/drivers/video/mxc_gis.c
index 01befb3..3d98cc2 100644
--- a/drivers/video/mxc_gis.c
+++ b/drivers/video/mxc_gis.c
@@ -301,6 +301,20 @@ void mxc_enable_gis(void)
 	u32 csimemsize, pxpmemsize;
 	char const *gis_input = getenv("gis");
 
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_CSI)) {
+		printf("CSI@0x%x is fused, disable it\n", CSI1_BASE_ADDR);
+		return;
+	}
+#endif
+
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_PXP)) {
+		printf("PXP@0x%x is fused, disable it\n", PXP_BASE_ADDR);
+		return;
+	}
+#endif
+
 	gis_regs = (struct mxs_gis_regs *)GIS_BASE_ADDR;
 	pxp_regs = (struct mxs_pxp_regs *)PXP_BASE_ADDR;
 	csi_regs = (struct mxs_csi_regs *)CSI1_BASE_ADDR;
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index 44004b1..270a31a 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -170,6 +170,11 @@ void lcdif_power_down()
 	struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)(panel.isaBase);
 	int timeout = WAIT_FOR_VSYNC_TIMEOUT;
 
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_LCDIF)) {
+		return;
+	}
+#endif
 	writel(panel.frameAdrs, &regs->hw_lcdif_cur_buf);
 	writel(panel.frameAdrs, &regs->hw_lcdif_next_buf);
 	writel(LCDIF_CTRL1_VSYNC_EDGE_IRQ, &regs->hw_lcdif_ctrl1_clr);
@@ -216,6 +221,12 @@ void *video_hw_init(void)
 		bpp = depth;
 	}
 
+#ifdef CONFIG_MX6
+	if (check_module_fused(MX6_MODULE_LCDIF)) {
+		printf("LCDIF@0x%x is fused, disable it\n", MXS_LCDIF_BASE);
+		return NULL;
+	}
+#endif
 	/* fill in Graphic device struct */
 	sprintf(panel.modeIdent, "%dx%dx%d",
 			mode.xres, mode.yres, bpp);