Hello.
Cyril Chemparathy wrote:
Added support for tnetv107x evaluation module.
Signed-off-by: Cyril Chemparathy <[email protected]>
---
v4: updated copyrights
v4: squashed relevant gpio pins into sdio1 pin list
v4: eliminated platform device definitions, moved to tnetv107x_devices_init()
implementation instead
v4: platform devices moved out to devices-tnetv107x.c
v3: moved some base address and edma channel definitions here
v3: minor formatting changes
[...]
diff --git a/arch/arm/mach-davinci/board-tnetv107x-evm.c
b/arch/arm/mach-davinci/board-tnetv107x-evm.c
new file mode 100644
index 0000000..62a7b02
--- /dev/null
+++ b/arch/arm/mach-davinci/board-tnetv107x-evm.c
@@ -0,0 +1,171 @@
+/*
+ * Texas Instruments TNETV107X EVM Board Support
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/ratelimit.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <asm/mach/arch.h>
+#include <asm/mach-types.h>
+
+#include <mach/irqs.h>
+#include <mach/edma.h>
+#include <mach/mux.h>
+#include <mach/tnetv107x.h>
+
+#define EVM_MMC_WP_GPIO 21
+#define EVM_MMC_CD_GPIO 24
+
+static int initialize_gpio(int gpio, char *desc)
+{
+ int ret;
+
+ ret = gpio_request(gpio, desc);
+ if (ret < 0) {
+ pr_err_ratelimited("cannot open %s gpio\n", desc);
+ return -ENOSYS;
+ }
+ gpio_direction_input(gpio);
+ return gpio;
+}
+
+static int mmc_get_cd(int index)
+{
+ static int gpio;
+
+ if (!gpio)
+ gpio = initialize_gpio(EVM_MMC_CD_GPIO, "mmc card detect");
+
+ if (gpio < 0)
+ return gpio;
+
+ return gpio_get_value(gpio) ? 0 : 1;
+}
+
+static int mmc_get_ro(int index)
+{
+ static int gpio;
+
+ if (!gpio)
+ gpio = initialize_gpio(EVM_MMC_WP_GPIO, "mmc write protect");
+
+ if (gpio < 0)
+ return gpio;
+
+ return gpio_get_value(gpio) ? 1 : 0;
+}
+
+static struct davinci_mmc_config mmc_config = {
+ .get_cd = mmc_get_cd,
+ .get_ro = mmc_get_ro,
+ .wires = 4,
+ .max_freq = 50000000,
+ .caps = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
+ .version = MMC_CTLR_VERSION_1,
+};
+
+static const short sdio1_pins[] __initdata = {
+ TNETV107X_SDIO1_CLK_1, TNETV107X_SDIO1_CMD_1,
+ TNETV107X_SDIO1_DATA0_1, TNETV107X_SDIO1_DATA1_1,
+ TNETV107X_SDIO1_DATA2_1, TNETV107X_SDIO1_DATA3_1,
+ TNETV107X_GPIO21, TNETV107X_GPIO24,
+ -1
+};
+
+const short uart1_pins[] __initdata = {
+ TNETV107X_UART1_RD, TNETV107X_UART1_TD,
+ -1
+};
+
+static struct mtd_partition nand_partitions[] = {
+ /* bootloader (U-Boot, etc) in first 12 sectors */
+ {
+ .name = "bootloader",
+ .offset = 0,
+ .size = (12*SZ_128K),
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ /* bootloader params in the next sector */
+ {
+ .name = "params",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = SZ_128K,
+ .mask_flags = MTD_WRITEABLE, /* force read-only */
+ },
+ /* kernel */
+ {
+ .name = "kernel",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = SZ_4M,
+ .mask_flags = 0,
+ },
+ /* file system */
+ {
+ .name = "filesystem",
+ .offset = MTDPART_OFS_NXTBLK,
+ .size = MTDPART_SIZ_FULL,
+ .mask_flags = 0,
+ }
+};
+
+static struct davinci_nand_pdata nand_config = {
+ .mask_cle = 0x4000,
+ .mask_ale = 0x2000,
+ .parts = nand_partitions,
+ .nr_parts = ARRAY_SIZE(nand_partitions),
+ .ecc_mode = NAND_ECC_HW,
+};
+
+struct davinci_uart_config serial_config __initconst = {
+ .enabled_uarts = BIT(1),
+};
+
+struct tnetv107x_device_info evm_device_info __initconst = {
+ .serial_config = &serial_config,
+ .mmc_config[1] = &mmc_config,
+ .nand_config[0] = &nand_config,
+};
+
+static __init void tnetv107x_evm_board_init(void)
+{
+ davinci_cfg_reg_list(sdio1_pins);
+ davinci_cfg_reg_list(uart1_pins);
+
+ tnetv107x_devices_init(&evm_device_info);
+}
I totally disagree about moving NAND to devices-tnetv107x.c -- it's a
board level device, not SoC level! Look at the existing boards, they all
define NAND/NOR devices in the board file.
BTW, don't you also need a pin list for NAND?
WBR, Sergei
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