Because that's what it is.
Signed-off-by: Sascha Hauer <[email protected]>
---
arch/arm/mach-imx/Makefile | 2 +-
arch/arm/mach-imx/external-nand-boot.c | 269 ++++++++++++++++++++++++++++++++
arch/arm/mach-imx/internal-nand-boot.c | 269 --------------------------------
3 files changed, 270 insertions(+), 270 deletions(-)
create mode 100644 arch/arm/mach-imx/external-nand-boot.c
delete mode 100644 arch/arm/mach-imx/internal-nand-boot.c
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 03e2421..89a8946 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -11,7 +11,7 @@ obj-$(CONFIG_ARCH_IMX6) += speed-imx6.o imx6.o iomux-v3.o
obj-$(CONFIG_IMX_CLKO) += clko.o
obj-$(CONFIG_IMX_IIM) += iim.o
obj-$(CONFIG_NAND_IMX) += nand.o
-obj-$(CONFIG_ARCH_IMX_EXTERNAL_BOOT_NAND) += internal-nand-boot.o
+obj-$(CONFIG_ARCH_IMX_EXTERNAL_BOOT_NAND) += external-nand-boot.o
obj-y += speed.o
obj-y += devices.o
obj-y += boot.o
diff --git a/arch/arm/mach-imx/external-nand-boot.c
b/arch/arm/mach-imx/external-nand-boot.c
new file mode 100644
index 0000000..e72a944
--- /dev/null
+++ b/arch/arm/mach-imx/external-nand-boot.c
@@ -0,0 +1,269 @@
+/*
+ * 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; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <init.h>
+#include <io.h>
+#include <linux/mtd/nand.h>
+#include <mach/imx-nand.h>
+#include <mach/generic.h>
+#include <mach/imx-regs.h>
+
+static void __bare_init noinline imx_nandboot_wait_op_done(void *regs)
+{
+ u32 r;
+
+ while (1) {
+ r = readw(regs + NFC_V1_V2_CONFIG2);
+ if (r & NFC_V1_V2_CONFIG2_INT)
+ break;
+ };
+
+ r &= ~NFC_V1_V2_CONFIG2_INT;
+
+ writew(r, regs + NFC_V1_V2_CONFIG2);
+}
+
+/*
+ * This function issues the specified command to the NAND device and
+ * waits for completion.
+ *
+ * @param cmd command for NAND Flash
+ */
+static void __bare_init imx_nandboot_send_cmd(void *regs, u16 cmd)
+{
+ writew(cmd, regs + NFC_V1_V2_FLASH_CMD);
+ writew(NFC_CMD, regs + NFC_V1_V2_CONFIG2);
+
+ imx_nandboot_wait_op_done(regs);
+}
+
+/*
+ * This function sends an address (or partial address) to the
+ * NAND device. The address is used to select the source/destination for
+ * a NAND command.
+ *
+ * @param addr address to be written to NFC.
+ * @param islast True if this is the last address cycle for command
+ */
+static void __bare_init noinline imx_nandboot_send_addr(void *regs, u16 addr)
+{
+ writew(addr, regs + NFC_V1_V2_FLASH_ADDR);
+ writew(NFC_ADDR, regs + NFC_V1_V2_CONFIG2);
+
+ /* Wait for operation to complete */
+ imx_nandboot_wait_op_done(regs);
+}
+
+static void __bare_init imx_nandboot_nfc_addr(void *regs, u32 offs, int
pagesize_2k)
+{
+ imx_nandboot_send_addr(regs, offs & 0xff);
+
+ if (pagesize_2k) {
+ imx_nandboot_send_addr(regs, offs & 0xff);
+ imx_nandboot_send_addr(regs, (offs >> 11) & 0xff);
+ imx_nandboot_send_addr(regs, (offs >> 19) & 0xff);
+ imx_nandboot_send_addr(regs, (offs >> 27) & 0xff);
+ imx_nandboot_send_cmd(regs, NAND_CMD_READSTART);
+ } else {
+ imx_nandboot_send_addr(regs, (offs >> 9) & 0xff);
+ imx_nandboot_send_addr(regs, (offs >> 17) & 0xff);
+ imx_nandboot_send_addr(regs, (offs >> 25) & 0xff);
+ }
+}
+
+static void __bare_init imx_nandboot_send_page(void *regs,
+ unsigned int ops, int pagesize_2k)
+{
+ int bufs, i;
+
+ if (nfc_is_v1() && pagesize_2k)
+ bufs = 4;
+ else
+ bufs = 1;
+
+ for (i = 0; i < bufs; i++) {
+ /* NANDFC buffer 0 is used for page read/write */
+ writew(i, regs + NFC_V1_V2_BUF_ADDR);
+
+ writew(ops, regs + NFC_V1_V2_CONFIG2);
+
+ /* Wait for operation to complete */
+ imx_nandboot_wait_op_done(regs);
+ }
+}
+
+static void __bare_init __memcpy32(void *trg, const void *src, int size)
+{
+ int i;
+ unsigned int *t = trg;
+ unsigned const int *s = src;
+
+ for (i = 0; i < (size >> 2); i++)
+ *t++ = *s++;
+}
+
+static int __maybe_unused is_pagesize_2k(void)
+{
+#ifdef CONFIG_ARCH_IMX21
+ if (readl(IMX_SYSTEM_CTL_BASE + 0x14) & (1 << 5))
+ return 1;
+ else
+ return 0;
+#endif
+#ifdef CONFIG_ARCH_IMX27
+ if (readl(IMX_SYSTEM_CTL_BASE + 0x14) & (1 << 5))
+ return 1;
+ else
+ return 0;
+#endif
+#ifdef CONFIG_ARCH_IMX31
+ if (readl(IMX_CCM_BASE + CCM_RCSR) & RCSR_NFMS)
+ return 1;
+ else
+ return 0;
+#endif
+#if defined(CONFIG_ARCH_IMX35) || defined(CONFIG_ARCH_IMX25)
+ if (readl(IMX_CCM_BASE + CCM_RCSR) & (1 << 8))
+ return 1;
+ else
+ return 0;
+#endif
+}
+
+void __bare_init imx_nand_load_image(void *dest, int size)
+{
+ u32 tmp, page, block, blocksize, pagesize;
+ int pagesize_2k = 1;
+ void *regs, *base, *spare0;
+
+#if defined(CONFIG_NAND_IMX_BOOT_512)
+ pagesize_2k = 0;
+#elif defined(CONFIG_NAND_IMX_BOOT_2K)
+ pagesize_2k = 1;
+#else
+ pagesize_2k = is_pagesize_2k();
+#endif
+
+ if (pagesize_2k) {
+ pagesize = 2048;
+ blocksize = 128 * 1024;
+ } else {
+ pagesize = 512;
+ blocksize = 16 * 1024;
+ }
+
+ base = (void __iomem *)IMX_NFC_BASE;
+ if (nfc_is_v21()) {
+ regs = base + 0x1e00;
+ spare0 = base + 0x1000;
+ } else if (nfc_is_v1()) {
+ regs = base + 0xe00;
+ spare0 = base + 0x800;
+ }
+
+ imx_nandboot_send_cmd(regs, NAND_CMD_RESET);
+
+ /* preset operation */
+ /* Unlock the internal RAM Buffer */
+ writew(0x2, regs + NFC_V1_V2_CONFIG);
+
+ /* Unlock Block Command for given address range */
+ writew(0x4, regs + NFC_V1_V2_WRPROT);
+
+ tmp = readw(regs + NFC_V1_V2_CONFIG1);
+ tmp |= NFC_V1_V2_CONFIG1_ECC_EN;
+ if (nfc_is_v21())
+ /* currently no support for 218 byte OOB with stronger ECC */
+ tmp |= NFC_V2_CONFIG1_ECC_MODE_4;
+ tmp &= ~(NFC_V1_V2_CONFIG1_SP_EN | NFC_V1_V2_CONFIG1_INT_MSK);
+ writew(tmp, regs + NFC_V1_V2_CONFIG1);
+
+ if (nfc_is_v21()) {
+ if (pagesize_2k)
+ writew(NFC_V2_SPAS_SPARESIZE(64), regs + NFC_V2_SPAS);
+ else
+ writew(NFC_V2_SPAS_SPARESIZE(16), regs + NFC_V2_SPAS);
+ }
+
+ block = page = 0;
+
+ while (1) {
+ page = 0;
+ while (page * pagesize < blocksize) {
+ debug("page: %d block: %d dest: %p src "
+ "0x%08x\n",
+ page, block, dest,
+ block * blocksize +
+ page * pagesize);
+
+ imx_nandboot_send_cmd(regs, NAND_CMD_READ0);
+ imx_nandboot_nfc_addr(regs, block * blocksize +
+ page * pagesize, pagesize_2k);
+ imx_nandboot_send_page(regs, NFC_OUTPUT, pagesize_2k);
+ page++;
+
+ if (pagesize_2k) {
+ if ((readw(spare0) & 0xff) != 0xff)
+ continue;
+ } else {
+ if ((readw(spare0 + 4) & 0xff00) != 0xff00)
+ continue;
+ }
+
+ __memcpy32(dest, base, pagesize);
+ dest += pagesize;
+ size -= pagesize;
+
+ if (size <= 0)
+ return;
+ }
+ block++;
+ }
+}
+
+#define CONFIG_NAND_IMX_BOOT_DEBUG
+#ifdef CONFIG_NAND_IMX_BOOT_DEBUG
+#include <command.h>
+
+static int do_nand_boot_test(int argc, char *argv[])
+{
+ void *dest;
+ int size;
+
+ if (argc < 3)
+ return COMMAND_ERROR_USAGE;
+
+ dest = (void *)strtoul_suffix(argv[1], NULL, 0);
+ size = strtoul_suffix(argv[2], NULL, 0);
+
+ imx_nand_load_image(dest, size);
+
+ return 0;
+}
+
+static const __maybe_unused char cmd_nand_boot_test_help[] =
+"Usage: nand_boot_test <dest> <size>\n"
+"This command loads the booloader from the NAND memory like the reset\n"
+"routine does. Its intended for development tests only";
+
+BAREBOX_CMD_START(nand_boot_test)
+ .cmd = do_nand_boot_test,
+ .usage = "load bootloader from NAND",
+ BAREBOX_CMD_HELP(cmd_nand_boot_test_help)
+BAREBOX_CMD_END
+#endif
diff --git a/arch/arm/mach-imx/internal-nand-boot.c
b/arch/arm/mach-imx/internal-nand-boot.c
deleted file mode 100644
index e72a944..0000000
--- a/arch/arm/mach-imx/internal-nand-boot.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <init.h>
-#include <io.h>
-#include <linux/mtd/nand.h>
-#include <mach/imx-nand.h>
-#include <mach/generic.h>
-#include <mach/imx-regs.h>
-
-static void __bare_init noinline imx_nandboot_wait_op_done(void *regs)
-{
- u32 r;
-
- while (1) {
- r = readw(regs + NFC_V1_V2_CONFIG2);
- if (r & NFC_V1_V2_CONFIG2_INT)
- break;
- };
-
- r &= ~NFC_V1_V2_CONFIG2_INT;
-
- writew(r, regs + NFC_V1_V2_CONFIG2);
-}
-
-/*
- * This function issues the specified command to the NAND device and
- * waits for completion.
- *
- * @param cmd command for NAND Flash
- */
-static void __bare_init imx_nandboot_send_cmd(void *regs, u16 cmd)
-{
- writew(cmd, regs + NFC_V1_V2_FLASH_CMD);
- writew(NFC_CMD, regs + NFC_V1_V2_CONFIG2);
-
- imx_nandboot_wait_op_done(regs);
-}
-
-/*
- * This function sends an address (or partial address) to the
- * NAND device. The address is used to select the source/destination for
- * a NAND command.
- *
- * @param addr address to be written to NFC.
- * @param islast True if this is the last address cycle for command
- */
-static void __bare_init noinline imx_nandboot_send_addr(void *regs, u16 addr)
-{
- writew(addr, regs + NFC_V1_V2_FLASH_ADDR);
- writew(NFC_ADDR, regs + NFC_V1_V2_CONFIG2);
-
- /* Wait for operation to complete */
- imx_nandboot_wait_op_done(regs);
-}
-
-static void __bare_init imx_nandboot_nfc_addr(void *regs, u32 offs, int
pagesize_2k)
-{
- imx_nandboot_send_addr(regs, offs & 0xff);
-
- if (pagesize_2k) {
- imx_nandboot_send_addr(regs, offs & 0xff);
- imx_nandboot_send_addr(regs, (offs >> 11) & 0xff);
- imx_nandboot_send_addr(regs, (offs >> 19) & 0xff);
- imx_nandboot_send_addr(regs, (offs >> 27) & 0xff);
- imx_nandboot_send_cmd(regs, NAND_CMD_READSTART);
- } else {
- imx_nandboot_send_addr(regs, (offs >> 9) & 0xff);
- imx_nandboot_send_addr(regs, (offs >> 17) & 0xff);
- imx_nandboot_send_addr(regs, (offs >> 25) & 0xff);
- }
-}
-
-static void __bare_init imx_nandboot_send_page(void *regs,
- unsigned int ops, int pagesize_2k)
-{
- int bufs, i;
-
- if (nfc_is_v1() && pagesize_2k)
- bufs = 4;
- else
- bufs = 1;
-
- for (i = 0; i < bufs; i++) {
- /* NANDFC buffer 0 is used for page read/write */
- writew(i, regs + NFC_V1_V2_BUF_ADDR);
-
- writew(ops, regs + NFC_V1_V2_CONFIG2);
-
- /* Wait for operation to complete */
- imx_nandboot_wait_op_done(regs);
- }
-}
-
-static void __bare_init __memcpy32(void *trg, const void *src, int size)
-{
- int i;
- unsigned int *t = trg;
- unsigned const int *s = src;
-
- for (i = 0; i < (size >> 2); i++)
- *t++ = *s++;
-}
-
-static int __maybe_unused is_pagesize_2k(void)
-{
-#ifdef CONFIG_ARCH_IMX21
- if (readl(IMX_SYSTEM_CTL_BASE + 0x14) & (1 << 5))
- return 1;
- else
- return 0;
-#endif
-#ifdef CONFIG_ARCH_IMX27
- if (readl(IMX_SYSTEM_CTL_BASE + 0x14) & (1 << 5))
- return 1;
- else
- return 0;
-#endif
-#ifdef CONFIG_ARCH_IMX31
- if (readl(IMX_CCM_BASE + CCM_RCSR) & RCSR_NFMS)
- return 1;
- else
- return 0;
-#endif
-#if defined(CONFIG_ARCH_IMX35) || defined(CONFIG_ARCH_IMX25)
- if (readl(IMX_CCM_BASE + CCM_RCSR) & (1 << 8))
- return 1;
- else
- return 0;
-#endif
-}
-
-void __bare_init imx_nand_load_image(void *dest, int size)
-{
- u32 tmp, page, block, blocksize, pagesize;
- int pagesize_2k = 1;
- void *regs, *base, *spare0;
-
-#if defined(CONFIG_NAND_IMX_BOOT_512)
- pagesize_2k = 0;
-#elif defined(CONFIG_NAND_IMX_BOOT_2K)
- pagesize_2k = 1;
-#else
- pagesize_2k = is_pagesize_2k();
-#endif
-
- if (pagesize_2k) {
- pagesize = 2048;
- blocksize = 128 * 1024;
- } else {
- pagesize = 512;
- blocksize = 16 * 1024;
- }
-
- base = (void __iomem *)IMX_NFC_BASE;
- if (nfc_is_v21()) {
- regs = base + 0x1e00;
- spare0 = base + 0x1000;
- } else if (nfc_is_v1()) {
- regs = base + 0xe00;
- spare0 = base + 0x800;
- }
-
- imx_nandboot_send_cmd(regs, NAND_CMD_RESET);
-
- /* preset operation */
- /* Unlock the internal RAM Buffer */
- writew(0x2, regs + NFC_V1_V2_CONFIG);
-
- /* Unlock Block Command for given address range */
- writew(0x4, regs + NFC_V1_V2_WRPROT);
-
- tmp = readw(regs + NFC_V1_V2_CONFIG1);
- tmp |= NFC_V1_V2_CONFIG1_ECC_EN;
- if (nfc_is_v21())
- /* currently no support for 218 byte OOB with stronger ECC */
- tmp |= NFC_V2_CONFIG1_ECC_MODE_4;
- tmp &= ~(NFC_V1_V2_CONFIG1_SP_EN | NFC_V1_V2_CONFIG1_INT_MSK);
- writew(tmp, regs + NFC_V1_V2_CONFIG1);
-
- if (nfc_is_v21()) {
- if (pagesize_2k)
- writew(NFC_V2_SPAS_SPARESIZE(64), regs + NFC_V2_SPAS);
- else
- writew(NFC_V2_SPAS_SPARESIZE(16), regs + NFC_V2_SPAS);
- }
-
- block = page = 0;
-
- while (1) {
- page = 0;
- while (page * pagesize < blocksize) {
- debug("page: %d block: %d dest: %p src "
- "0x%08x\n",
- page, block, dest,
- block * blocksize +
- page * pagesize);
-
- imx_nandboot_send_cmd(regs, NAND_CMD_READ0);
- imx_nandboot_nfc_addr(regs, block * blocksize +
- page * pagesize, pagesize_2k);
- imx_nandboot_send_page(regs, NFC_OUTPUT, pagesize_2k);
- page++;
-
- if (pagesize_2k) {
- if ((readw(spare0) & 0xff) != 0xff)
- continue;
- } else {
- if ((readw(spare0 + 4) & 0xff00) != 0xff00)
- continue;
- }
-
- __memcpy32(dest, base, pagesize);
- dest += pagesize;
- size -= pagesize;
-
- if (size <= 0)
- return;
- }
- block++;
- }
-}
-
-#define CONFIG_NAND_IMX_BOOT_DEBUG
-#ifdef CONFIG_NAND_IMX_BOOT_DEBUG
-#include <command.h>
-
-static int do_nand_boot_test(int argc, char *argv[])
-{
- void *dest;
- int size;
-
- if (argc < 3)
- return COMMAND_ERROR_USAGE;
-
- dest = (void *)strtoul_suffix(argv[1], NULL, 0);
- size = strtoul_suffix(argv[2], NULL, 0);
-
- imx_nand_load_image(dest, size);
-
- return 0;
-}
-
-static const __maybe_unused char cmd_nand_boot_test_help[] =
-"Usage: nand_boot_test <dest> <size>\n"
-"This command loads the booloader from the NAND memory like the reset\n"
-"routine does. Its intended for development tests only";
-
-BAREBOX_CMD_START(nand_boot_test)
- .cmd = do_nand_boot_test,
- .usage = "load bootloader from NAND",
- BAREBOX_CMD_HELP(cmd_nand_boot_test_help)
-BAREBOX_CMD_END
-#endif
--
1.7.10
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