Add CONFIG_PRELOADER/CONFIG_NAND_SPL support for nand booting to arm926ejs/start.S

This is derived from CONFIG_PRELOADER support in arm1136/start.S

Signed-off-by: John Rigby jcrigby@gmail.com CC: Scott Wood scottwood@freescale.com --- cpu/arm926ejs/start.S | 42 +++++++++++++++++++++++++++++++++++++++++- 1 files changed, 41 insertions(+), 1 deletions(-)

diff --git a/cpu/arm926ejs/start.S b/cpu/arm926ejs/start.S index 4421b6a..3b81151 100644 --- a/cpu/arm926ejs/start.S +++ b/cpu/arm926ejs/start.S @@ -53,6 +53,27 @@ .globl _start _start: b reset +#ifdef CONFIG_PRELOADER +/* No exception handlers in preloader */ + ldr pc, _hang + ldr pc, _hang + ldr pc, _hang + ldr pc, _hang + ldr pc, _hang + ldr pc, _hang + ldr pc, _hang + +_hang: + .word do_hang +/* pad to 64 byte boundary */ + .word 0x12345678 + .word 0x12345678 + .word 0x12345678 + .word 0x12345678 + .word 0x12345678 + .word 0x12345678 + .word 0x12345678 +#else ldr pc, _undefined_instruction ldr pc, _software_interrupt ldr pc, _prefetch_abort @@ -76,6 +97,7 @@ _irq: _fiq: .word fiq

+#endif /* CONFIG_PRELOADER */ .balignl 16,0xdeadbeef

@@ -150,7 +172,6 @@ relocate: /* relocate U-Boot to RAM */ ldr r1, _TEXT_BASE /* test if we run from flash or RAM */ cmp r0, r1 /* don't reloc during debug */ beq stack_setup - ldr r2, _armboot_start ldr r3, _bss_start sub r2, r3, r2 /* r2 <- size of armboot */ @@ -166,11 +187,14 @@ copy_loop: /* Set up the stack */ stack_setup: ldr r0, _TEXT_BASE /* upper 128 KiB: relocated uboot */ + sub sp, r0, #128 /* leave 32 words for abort-stack */ +#ifndef CONFIG_PRELOADER sub r0, r0, #CONFIG_SYS_MALLOC_LEN /* malloc area */ sub r0, r0, #CONFIG_SYS_GBL_DATA_SIZE /* bdinfo */ #ifdef CONFIG_USE_IRQ sub r0, r0, #(CONFIG_STACKSIZE_IRQ+CONFIG_STACKSIZE_FIQ) #endif +#endif /* CONFIG_PRELOADER */ sub sp, r0, #12 /* leave 3 words for abort-stack */ bic sp, r0, #7 /* 8-byte align stack for ABI compliance */

@@ -179,6 +203,7 @@ clear_bss: ldr r1, _bss_end /* stop here */ mov r2, #0x00000000 /* clear */

+#ifndef CONFIG_PRELOADER clbss_l:str r2, [r0] /* clear loop... */ add r0, r0, #4 cmp r0, r1 @@ -186,11 +211,16 @@ clbss_l:str r2, [r0] /* clear loop... */

bl coloured_LED_init bl red_LED_on +#endif /* CONFIG_PRELOADER */

ldr pc, _start_armboot

_start_armboot: +#ifdef CONFIG_NAND_SPL + .word nand_boot +#else .word start_armboot +#endif /* CONFIG_NAND_SPL */

/* @@ -231,6 +261,7 @@ cpu_init_crit: mov pc, lr /* back to my caller */ #endif /* CONFIG_SKIP_LOWLEVEL_INIT */

+#ifndef CONFIG_PRELOADER /* ************************************************************************* * @@ -332,10 +363,18 @@ cpu_init_crit: .macro get_fiq_stack @ setup FIQ stack ldr sp, FIQ_STACK_START .endm +#endif /* CONFIG_PRELOADER */

/* * exception handlers */ +#ifdef CONFIG_PRELOADER + .align 5 +do_hang: + ldr sp, _TEXT_BASE /* switch to abort stack */ +1: + bl 1b /* hang and never return */ +#else /* !CONFIG_PRELOADER */ .align 5 undefined_instruction: get_bad_stack @@ -398,3 +437,4 @@ fiq: bl do_fiq

#endif +#endif /* CONFIG_PRELOADER */

Add support for version 1.1 of the nfc nand flash controller which is on the i.mx25 soc.

Signed-off-by: John Rigby jcrigby@gmail.com CC: Scott Wood scottwood@freescale.com --- drivers/mtd/nand/mxc_nand.c | 617 ++++++++++++++++++++++++++++++++++++++----- 1 files changed, 545 insertions(+), 72 deletions(-)

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index b2b612e..35f2a03 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -22,27 +22,63 @@ #include <nand.h> #include <linux/err.h> #include <asm/io.h> -#ifdef CONFIG_MX27 #include <asm/arch/imx-regs.h> -#endif

#define DRIVER_NAME "mxc_nand"

+/* + * TODO: Use same register defs here as nand_spl mxc nand driver. + */ +/* + * Register map and bit definitions for the Freescale NAND Flash Controller + * present in various i.MX devices. + * + * MX31 and MX27 have version 1 which has + * 4 512 byte main buffers and + * 4 16 byte spare buffers + * to support up to 2K byte pagesize nand. + * Reading or writing a 2K page requires 4 FDI/FDO cycles. + * + * MX25 has version 1.1 which has + * 8 512 byte main buffers and + * 8 64 byte spare buffers + * to support up to 4K byte pagesize nand. + * Reading or writing a 2K or 4K page requires only 1 FDI/FDO cycle. + * Also some of registers are moved and/or changed meaning as seen below. + */ +#if defined(CONFIG_MX31) || defined(CONFIG_MX27) +#define MXC_NFC_V1 +#elif defined(CONFIG_MX25) +#define MXC_NFC_V1_1 +#else +#warning "MXC NFC version not defined" +#endif + +#if defined(MXC_NFC_V1) +#define NAND_MXC_NR_BUFS 4 +#define NAND_MXC_SPARE_BUF_SIZE 16 +#define NAND_MXC_REG_OFFSET 0xe00 +#define is_mxc_nfc_11() 0 +#elif defined(MXC_NFC_V1_1) +#define NAND_MXC_NR_BUFS 8 +#define NAND_MXC_SPARE_BUF_SIZE 64 +#define NAND_MXC_REG_OFFSET 0x1e00 +#define is_mxc_nfc_11() 1 +#else +#error "define CONFIG_NAND_MXC_VXXX to use mtd mxc nand driver" +#endif struct nfc_regs { -/* NFC RAM BUFFER Main area 0 */ - uint8_t main_area0[0x200]; - uint8_t main_area1[0x200]; - uint8_t main_area2[0x200]; - uint8_t main_area3[0x200]; -/* SPARE BUFFER Spare area 0 */ - uint8_t spare_area0[0x10]; - uint8_t spare_area1[0x10]; - uint8_t spare_area2[0x10]; - uint8_t spare_area3[0x10]; - uint8_t pad[0x5c0]; -/* NFC registers */ + uint8_t main_area[NAND_MXC_NR_BUFS][0x200]; + uint8_t spare_area[NAND_MXC_NR_BUFS][NAND_MXC_SPARE_BUF_SIZE]; + /* + * reserved size is offset of nfc registers + * minus total main and spare sizes + */ + uint8_t reserved1[NAND_MXC_REG_OFFSET + - NAND_MXC_NR_BUFS * (512 + NAND_MXC_SPARE_BUF_SIZE)]; +#if defined(MXC_NFC_V1) uint16_t nfc_buf_size; - uint16_t reserved; + uint16_t reserved2; uint16_t nfc_buf_addr; uint16_t nfc_flash_addr; uint16_t nfc_flash_cmd; @@ -56,6 +92,30 @@ struct nfc_regs { uint16_t nfc_nf_wrprst; uint16_t nfc_config1; uint16_t nfc_config2; +#elif defined(MXC_NFC_V1_1) + uint16_t reserved2[2]; + uint16_t nfc_buf_addr; + uint16_t nfc_flash_addr; + uint16_t nfc_flash_cmd; + uint16_t nfc_config; + uint16_t nfc_ecc_status_result; + uint16_t nfc_ecc_status_result2; + uint16_t nfc_spare_area_size; + uint16_t nfc_wrprot; + uint16_t reserved3[2]; + uint16_t nfc_nf_wrprst; + uint16_t nfc_config1; + uint16_t nfc_config2; + uint16_t reserved4; + uint16_t nfc_unlockstart_blkaddr; + uint16_t nfc_unlockend_blkaddr; + uint16_t nfc_unlockstart_blkaddr1; + uint16_t nfc_unlockend_blkaddr1; + uint16_t nfc_unlockstart_blkaddr2; + uint16_t nfc_unlockend_blkaddr2; + uint16_t nfc_unlockstart_blkaddr3; + uint16_t nfc_unlockend_blkaddr3; +#endif };

/* @@ -100,6 +160,11 @@ struct nfc_regs { */ #define NFC_INT 0x8000

+#ifdef MXC_NFC_V1_1 +#define NFC_4_8N_ECC (1 << 0) +#else +#define NFC_4_8N_ECC 0 +#endif #define NFC_SP_EN (1 << 2) #define NFC_ECC_EN (1 << 3) #define NFC_BIG (1 << 5) @@ -119,6 +184,7 @@ struct mxc_nand_host { int pagesize_2k; int clk_act; uint16_t col_addr; + unsigned int page_addr; };

static struct mxc_nand_host mxc_host; @@ -135,26 +201,45 @@ static struct mxc_nand_host *host = &mxc_host; #define SPARE_SINGLEBIT_ERROR 0x1

/* OOB placement block for use with hardware ecc generation */ -#ifdef CONFIG_MXC_NAND_HWECC +#if defined(MXC_NFC_V1) +#ifndef CONFIG_SYS_NAND_LARGEPAGE static struct nand_ecclayout nand_hw_eccoob = { .eccbytes = 5, .eccpos = {6, 7, 8, 9, 10}, - .oobfree = {{0, 5}, {11, 5}, } + .oobfree = { {0, 5}, {11, 5}, } }; #else -static struct nand_ecclayout nand_soft_eccoob = { - .eccbytes = 6, - .eccpos = {6, 7, 8, 9, 10, 11}, - .oobfree = {{0, 5}, {12, 4}, } +static struct nand_ecclayout nand_hw_eccoob2k = { + .eccbytes = 20, + .eccpos = { + 6, 7, 8, 9, 10, + 22, 23, 24, 25, 26, + 38, 39, 40, 41, 42, + 54, 55, 56, 57, 58, + }, + .oobfree = { {2, 4}, {11, 11}, {27, 11}, {43, 11}, {59, 5} }, }; #endif - -static struct nand_ecclayout nand_hw_eccoob_largepage = { - .eccbytes = 20, - .eccpos = {6, 7, 8, 9, 10, 22, 23, 24, 25, 26, - 38, 39, 40, 41, 42, 54, 55, 56, 57, 58}, - .oobfree = {{2, 4}, {11, 10}, {27, 10}, {43, 10}, {59, 5}, } +#elif defined(MXC_NFC_V1_1) +#ifndef CONFIG_SYS_NAND_LARGEPAGE +static struct nand_ecclayout nand_hw_eccoob = { + .eccbytes = 9, + .eccpos = {7, 8, 9, 10, 11, 12, 13, 14, 15}, + .oobfree = { {2, 5} } +}; +#else +static struct nand_ecclayout nand_hw_eccoob2k = { + .eccbytes = 36, + .eccpos = { + 7, 8, 9, 10, 11, 12, 13, 14, 15, + 23, 24, 25, 26, 27, 28, 29, 30, 31, + 39, 40, 41, 42, 43, 44, 45, 46, 47, + 55, 56, 57, 58, 59, 60, 61, 62, 63, + }, + .oobfree = { {2, 5}, {16, 7}, {32, 7}, {48, 7} }, }; +#endif +#endif

#ifdef CONFIG_MX27 static int is_16bit_nand(void) @@ -178,6 +263,17 @@ static int is_16bit_nand(void) else return 0; } +#elif defined(CONFIG_MX25) +static int is_16bit_nand(void) +{ + struct ccm_regs *ccm = + (struct ccm_regs *)IMX_CCM_BASE; + + if (readl(&ccm->rcsr) & CCM_RCSR_NF_16BIT_SEL) + return 1; + else + return 0; +} #else #warning "8/16 bit NAND autodetection not supported" static int is_16bit_nand(void) @@ -258,7 +354,24 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr) static void send_prog_page(struct mxc_nand_host *host, uint8_t buf_id, int spare_only) { - MTDDEBUG(MTD_DEBUG_LEVEL3, "send_prog_page (%d)\n", spare_only); + if (spare_only) + MTDDEBUG(MTD_DEBUG_LEVEL1, "send_prog_page (%d)\n", spare_only); + + if (is_mxc_nfc_11()) { + int i; + /* + * The controller copies the 64 bytes of spare data from + * the first 16 bytes of each of the 4 64 byte spare buffers. + * Copy the contiguous data starting in spare_area[0] to + * the four spare area buffers. + */ + for (i = 1; i < 4; i++) { + void __iomem *src = &host->regs->spare_area[0][i * 16]; + void __iomem *dst = &host->regs->spare_area[i][0]; + + mxc_nand_memcpy32(dst, src, 16); + } + }

writew(buf_id, &host->regs->nfc_buf_addr);

@@ -303,6 +416,22 @@ static void send_read_page(struct mxc_nand_host *host, uint8_t buf_id,

/* Wait for operation to complete */ wait_op_done(host, TROP_US_DELAY, spare_only); + + if (is_mxc_nfc_11()) { + int i; + + /* + * The controller copies the 64 bytes of spare data to + * the first 16 bytes of each of the 4 spare buffers. + * Make the data contiguous starting in spare_area[0]. + */ + for (i = 1; i < 4; i++) { + void __iomem *src = &host->regs->spare_area[i][0]; + void __iomem *dst = &host->regs->spare_area[0][i * 16]; + + mxc_nand_memcpy32(dst, src, 16); + } + } }

/* Request the NANDFC to perform a read of the NAND device ID. */ @@ -330,7 +459,7 @@ static void send_read_id(struct mxc_nand_host *host) */ static uint16_t get_dev_status(struct mxc_nand_host *host) { - void __iomem *main_buf = host->regs->main_area1; + void __iomem *main_buf = host->regs->main_area[1]; uint32_t store; uint16_t ret, tmp; /* Issue status request to NAND device */ @@ -379,6 +508,330 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode) */ }

+#ifdef MXC_NFC_V1_1 +static void _mxc_nand_enable_hwecc(struct mtd_info *mtd, int on) +{ + struct nand_chip *nand_chip = mtd->priv; + struct mxc_nand_host *host = nand_chip->priv; + uint16_t tmp = readw(&host->regs->nfc_config1); + + if (on) + tmp |= NFC_ECC_EN; + else + tmp &= ~NFC_ECC_EN; + writew(tmp, &host->regs->nfc_config1); +} + +static int mxc_nand_read_oob_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + int page, int sndcmd) +{ + struct mxc_nand_host *host = chip->priv; + uint8_t *buf = chip->oob_poi; + int length = mtd->oobsize; + int eccpitch = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *bufpoi = buf; + int i, toread; + + MTDDEBUG(MTD_DEBUG_LEVEL0, + "%s: Reading OOB area of page %u to oob %p\n", + __FUNCTION__, host->page_addr, buf); + + chip->cmdfunc(mtd, NAND_CMD_READOOB, mtd->writesize, page); + for (i = 0; i < chip->ecc.steps; i++) { + toread = min_t(int, length, chip->ecc.prepad); + if (toread) { + chip->read_buf(mtd, bufpoi, toread); + bufpoi += toread; + length -= toread; + } + bufpoi += chip->ecc.bytes; + host->col_addr += chip->ecc.bytes; + length -= chip->ecc.bytes; + + toread = min_t(int, length, chip->ecc.postpad); + if (toread) { + chip->read_buf(mtd, bufpoi, toread); + bufpoi += toread; + length -= toread; + } + } + if (length > 0) + chip->read_buf(mtd, bufpoi, length); + + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READOOB, + mtd->writesize + chip->ecc.prepad, page); + bufpoi = buf + chip->ecc.prepad; + length = mtd->oobsize - chip->ecc.prepad; + for (i = 0; i < chip->ecc.steps; i++) { + toread = min_t(int, length, chip->ecc.bytes); + chip->read_buf(mtd, bufpoi, toread); + bufpoi += eccpitch; + length -= eccpitch; + host->col_addr += chip->ecc.postpad + chip->ecc.prepad; + } + _mxc_nand_enable_hwecc(mtd, 1); + return 1; +} + +static int mxc_nand_read_page_raw_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf, + int page) +{ + struct mxc_nand_host *host = chip->priv; + int eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *oob = chip->oob_poi; + int steps, size; + int n; + + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, host->page_addr); + + for (n = 0, steps = chip->ecc.steps; steps > 0; n++, steps--) { + host->col_addr = n * eccsize; + chip->read_buf(mtd, buf, eccsize); + buf += eccsize; + + host->col_addr = mtd->writesize + n * eccpitch; + if (chip->ecc.prepad) { + chip->read_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + chip->read_buf(mtd, oob, eccbytes); + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->read_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + size = mtd->oobsize - (oob - chip->oob_poi); + if (size) + chip->read_buf(mtd, oob, size); + _mxc_nand_enable_hwecc(mtd, 0); + + return 0; +} + +static int mxc_nand_read_page_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + uint8_t *buf, + int page) +{ + struct mxc_nand_host *host = chip->priv; + int n, eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + int eccsteps = chip->ecc.steps; + uint8_t *p = buf; + uint8_t *oob = chip->oob_poi; + + MTDDEBUG(MTD_DEBUG_LEVEL1, "Reading page %u to buf %p oob %p\n", + host->page_addr, buf, oob); + + /* first read out the data area and the available portion of OOB */ + for (n = 0; eccsteps; n++, eccsteps--, p += eccsize) { + int stat; + + host->col_addr = n * eccsize; + + chip->read_buf(mtd, p, eccsize); + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->read_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + stat = chip->ecc.correct(mtd, p, oob, NULL); + + if (stat < 0) + mtd->ecc_stats.failed++; + else + mtd->ecc_stats.corrected += stat; + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->read_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + /* Calculate remaining oob bytes */ + n = mtd->oobsize - (oob - chip->oob_poi); + if (n) + chip->read_buf(mtd, oob, n); + + /* Then switch ECC off and read the OOB area to get the ECC code */ + _mxc_nand_enable_hwecc(mtd, 0); + chip->cmdfunc(mtd, NAND_CMD_READOOB, mtd->writesize, host->page_addr); + eccsteps = chip->ecc.steps; + oob = chip->oob_poi + chip->ecc.prepad; + for (n = 0; eccsteps; n++, eccsteps--, p += eccsize) { + host->col_addr = mtd->writesize + + n * eccpitch + + chip->ecc.prepad; + chip->read_buf(mtd, oob, eccbytes); + oob += eccbytes + chip->ecc.postpad; + } + _mxc_nand_enable_hwecc(mtd, 1); + return 0; +} + +static int mxc_nand_write_oob_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, int page) +{ + struct mxc_nand_host *host = chip->priv; + int eccpitch = chip->ecc.bytes + chip->ecc.prepad + chip->ecc.postpad; + int length = mtd->oobsize; + int i, len, status, steps = chip->ecc.steps; + const uint8_t *bufpoi = chip->oob_poi; + + chip->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->writesize, page); + for (i = 0; i < steps; i++) { + len = min_t(int, length, eccpitch); + + chip->write_buf(mtd, bufpoi, len); + bufpoi += len; + length -= len; + host->col_addr += chip->ecc.prepad + chip->ecc.postpad; + } + if (length > 0) + chip->write_buf(mtd, bufpoi, length); + + chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); + status = chip->waitfunc(mtd, chip); + return status & NAND_STATUS_FAIL ? -EIO : 0; +} + +static void mxc_nand_write_page_raw_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + const uint8_t *buf) +{ + struct mxc_nand_host *host = chip->priv; + int eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + uint8_t *oob = chip->oob_poi; + int steps, size; + int n; + + for (n = 0, steps = chip->ecc.steps; steps > 0; n++, steps--) { + host->col_addr = n * eccsize; + chip->write_buf(mtd, buf, eccsize); + buf += eccsize; + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->write_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + host->col_addr += eccbytes; + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->write_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + size = mtd->oobsize - (oob - chip->oob_poi); + if (size) + chip->write_buf(mtd, oob, size); +} + +static void mxc_nand_write_page_syndrome(struct mtd_info *mtd, + struct nand_chip *chip, + const uint8_t *buf) +{ + struct mxc_nand_host *host = chip->priv; + int i, n, eccsize = chip->ecc.size; + int eccbytes = chip->ecc.bytes; + int eccpitch = eccbytes + chip->ecc.prepad + chip->ecc.postpad; + int eccsteps = chip->ecc.steps; + const uint8_t *p = buf; + uint8_t *oob = chip->oob_poi; + + chip->ecc.hwctl(mtd, NAND_ECC_WRITE); + + for (i = n = 0; + eccsteps; + n++, eccsteps--, i += eccbytes, p += eccsize) { + host->col_addr = n * eccsize; + + chip->write_buf(mtd, p, eccsize); + + host->col_addr = mtd->writesize + n * eccpitch; + + if (chip->ecc.prepad) { + chip->write_buf(mtd, oob, chip->ecc.prepad); + oob += chip->ecc.prepad; + } + + chip->write_buf(mtd, oob, eccbytes); + oob += eccbytes; + + if (chip->ecc.postpad) { + chip->write_buf(mtd, oob, chip->ecc.postpad); + oob += chip->ecc.postpad; + } + } + + /* Calculate remaining oob bytes */ + i = mtd->oobsize - (oob - chip->oob_poi); + if (i) + chip->write_buf(mtd, oob, i); +} + +static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat, + u_char *read_ecc, u_char *calc_ecc) +{ + struct nand_chip *nand_chip = mtd->priv; + struct mxc_nand_host *host = nand_chip->priv; + uint16_t ecc_status = readw(&host->regs->nfc_ecc_status_result); + int subpages = mtd->writesize / nand_chip->subpagesize; + int pg2blk_shift = nand_chip->phys_erase_shift - + nand_chip->page_shift; + + do { + if ((ecc_status & 0xf) > 4) { + static int last_bad = -1; + + if (last_bad != host->page_addr >> pg2blk_shift) { + last_bad = host->page_addr >> pg2blk_shift; + printk(KERN_DEBUG + "MXC_NAND: HWECC uncorrectable ECC error" + " in block %u page %u subpage %d\n", + last_bad, host->page_addr, + mtd->writesize / nand_chip->subpagesize + - subpages); + } + return -1; + } + ecc_status >>= 4; + subpages--; + } while (subpages > 0); + + return 0; +} +#else +#define mxc_nand_read_page_syndrome NULL +#define mxc_nand_read_page_raw_syndrome NULL +#define mxc_nand_read_oob_syndrome NULL +#define mxc_nand_write_page_syndrome NULL +#define mxc_nand_write_page_raw_syndrome NULL +#define mxc_nand_write_oob_syndrome NULL +#define mxc_nfc_11_nand_correct_data NULL + static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { @@ -400,6 +853,9 @@ static int mxc_nand_correct_data(struct mtd_info *mtd, u_char *dat,

return 0; } +#endif + +

static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) @@ -415,9 +871,9 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd) uint8_t ret = 0; uint16_t col; uint16_t __iomem *main_buf = - (uint16_t __iomem *)host->regs->main_area0; + (uint16_t __iomem *)host->regs->main_area[0]; uint16_t __iomem *spare_buf = - (uint16_t __iomem *)host->regs->spare_area0; + (uint16_t __iomem *)host->regs->spare_area[0]; union { uint16_t word; uint8_t bytes[2]; @@ -464,9 +920,10 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd) col += mtd->writesize;

if (col < mtd->writesize) { - p = (uint16_t __iomem *)(host->regs->main_area0 + (col >> 1)); + p = (uint16_t __iomem *)(host->regs->main_area[0] + + (col >> 1)); } else { - p = (uint16_t __iomem *)(host->regs->spare_area0 + + p = (uint16_t __iomem *)(host->regs->spare_area[0] + ((col - mtd->writesize) >> 1)); }

@@ -525,9 +982,9 @@ static void mxc_nand_write_buf(struct mtd_info *mtd, void __iomem *p;

if (col < mtd->writesize) { - p = host->regs->main_area0 + (col & ~3); + p = host->regs->main_area[0] + (col & ~3); } else { - p = host->regs->spare_area0 - + p = host->regs->spare_area[0] - mtd->writesize + (col & ~3); }

@@ -595,9 +1052,9 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) void __iomem *p;

if (col < mtd->writesize) { - p = host->regs->main_area0 + (col & ~3); + p = host->regs->main_area[0] + (col & ~3); } else { - p = host->regs->spare_area0 - + p = host->regs->spare_area[0] - mtd->writesize + (col & ~3); }

@@ -683,7 +1140,7 @@ static void mxc_nand_select_chip(struct mtd_info *mtd, int chip) * Used by the upper layer to write command to NAND Flash for * different operations to be carried out on NAND Flash */ -static void mxc_nand_command(struct mtd_info *mtd, unsigned command, +void mxc_nand_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *nand_chip = mtd->priv; @@ -705,6 +1162,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, break;

case NAND_CMD_READ0: + host->page_addr = page_addr; host->col_addr = column; host->spare_only = false; break; @@ -750,7 +1208,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, case NAND_CMD_PAGEPROG: send_prog_page(host, 0, host->spare_only);

- if (host->pagesize_2k) { + if (host->pagesize_2k && !is_mxc_nfc_11()) { /* data in 4 areas datas */ send_prog_page(host, 1, host->spare_only); send_prog_page(host, 2, host->spare_only); @@ -780,30 +1238,12 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,

/* Write out page address, if necessary */ if (page_addr != -1) { - /* paddr_0 - p_addr_7 */ - send_addr(host, (page_addr & 0xff)); - - if (host->pagesize_2k) { - send_addr(host, (page_addr >> 8) & 0xFF); - if (mtd->size >= 0x10000000) { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - send_addr(host, (page_addr >> 16) & 0xff); - } else { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - } - } else { - /* One more address cycle for higher density devices */ - if (mtd->size >= 0x4000000) { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - send_addr(host, (page_addr >> 16) & 0xff); - } else { - /* paddr_8 - paddr_15 */ - send_addr(host, (page_addr >> 8) & 0xff); - } - } + u32 page_mask = nand_chip->pagemask; + do { + send_addr(host, page_addr & 0xFF); + page_addr >>= 8; + page_mask >>= 8; + } while (page_mask); }

/* Command post-processing step */ @@ -819,9 +1259,11 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, send_cmd(host, NAND_CMD_READSTART); /* read for each AREA */ send_read_page(host, 0, host->spare_only); - send_read_page(host, 1, host->spare_only); - send_read_page(host, 2, host->spare_only); - send_read_page(host, 3, host->spare_only); + if (!is_mxc_nfc_11()) { + send_read_page(host, 1, host->spare_only); + send_read_page(host, 2, host->spare_only); + send_read_page(host, 3, host->spare_only); + } } else { send_read_page(host, 0, host->spare_only); } @@ -843,6 +1285,24 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, } }

+#ifdef MXC_NFC_V1_1 +static void mxc_setup_config1(void) +{ + uint16_t tmp; + + tmp = readw(&host->regs->nfc_config1); + tmp |= NFC_ONE_CYCLE; + tmp |= NFC_4_8N_ECC; + writew(tmp, &host->regs->nfc_config1); + if (host->pagesize_2k) + writew(64/2, &host->regs->nfc_spare_area_size); + else + writew(16/2, &host->regs->nfc_spare_area_size); +} +#else +#define mxc_setup_config1() +#endif + int board_nand_init(struct nand_chip *this) { struct mtd_info *mtd; @@ -874,10 +1334,23 @@ int board_nand_init(struct nand_chip *this) this->ecc.calculate = mxc_nand_calculate_ecc; this->ecc.hwctl = mxc_nand_enable_hwecc; this->ecc.correct = mxc_nand_correct_data; - this->ecc.mode = NAND_ECC_HW; + if (is_mxc_nfc_11()) { + this->ecc.mode = NAND_ECC_HW_SYNDROME; + this->ecc.read_page = mxc_nand_read_page_syndrome; + this->ecc.read_page_raw = mxc_nand_read_page_raw_syndrome; + this->ecc.read_oob = mxc_nand_read_oob_syndrome; + this->ecc.write_page = mxc_nand_write_page_syndrome; + this->ecc.write_page_raw = mxc_nand_write_page_raw_syndrome; + this->ecc.write_oob = mxc_nand_write_oob_syndrome; + this->ecc.bytes = 9; + this->ecc.prepad = 7; + } else { + this->ecc.mode = NAND_ECC_HW; + } + + host->pagesize_2k = 0; + this->ecc.size = 512; - this->ecc.bytes = 3; - this->ecc.layout = &nand_hw_eccoob; tmp = readw(&host->regs->nfc_config1); tmp |= NFC_ECC_EN; writew(tmp, &host->regs->nfc_config1); @@ -888,7 +1361,6 @@ int board_nand_init(struct nand_chip *this) tmp &= ~NFC_ECC_EN; writew(tmp, &host->regs->nfc_config1); #endif - /* Reset NAND */ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);

@@ -911,10 +1383,11 @@ int board_nand_init(struct nand_chip *this)

#ifdef CONFIG_SYS_NAND_LARGEPAGE host->pagesize_2k = 1; - this->ecc.layout = &nand_hw_eccoob_largepage; + this->ecc.layout = &nand_hw_eccoob2k; #else host->pagesize_2k = 0; + this->ecc.layout = &nand_hw_eccoob; #endif - + mxc_setup_config1(); return err; }

ARM926EJS core with MX31 peripherals.

Signed-off-by: John Rigby jcrigby@gmail.com Earlier Version Signed-off-by: Wolfgang Denk wd@denx.de CC: Fred Fan fanyefeng@gmail.com CC: Tom Tom.Rix@windriver.com --- cpu/arm926ejs/mx25/Makefile | 46 ++++ cpu/arm926ejs/mx25/generic.c | 263 +++++++++++++++++++ cpu/arm926ejs/mx25/reset.c | 56 ++++ cpu/arm926ejs/mx25/timer.c | 187 +++++++++++++ drivers/serial/serial_mxc.c | 10 +- include/asm-arm/arch-mx25/clock.h | 35 +++ include/asm-arm/arch-mx25/imx-regs.h | 316 ++++++++++++++++++++++ include/asm-arm/arch-mx25/imx25-pinmux.h | 421 ++++++++++++++++++++++++++++++ 8 files changed, 1329 insertions(+), 5 deletions(-) create mode 100644 cpu/arm926ejs/mx25/Makefile create mode 100644 cpu/arm926ejs/mx25/generic.c create mode 100644 cpu/arm926ejs/mx25/reset.c create mode 100644 cpu/arm926ejs/mx25/timer.c create mode 100644 include/asm-arm/arch-mx25/clock.h create mode 100644 include/asm-arm/arch-mx25/imx-regs.h create mode 100644 include/asm-arm/arch-mx25/imx25-pinmux.h

diff --git a/cpu/arm926ejs/mx25/Makefile b/cpu/arm926ejs/mx25/Makefile new file mode 100644 index 0000000..55c1e89 --- /dev/null +++ b/cpu/arm926ejs/mx25/Makefile @@ -0,0 +1,46 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(SOC).a + +COBJS = generic.o timer.o +MX27OBJS = reset.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +SRCS += $(addprefix $(SRCTREE)/cpu/arm926ejs/mx27/,$(MX27OBJS:.o=.c)) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(MX27OBJS)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/arm926ejs/mx25/generic.c b/cpu/arm926ejs/mx25/generic.c new file mode 100644 index 0000000..694841d --- /dev/null +++ b/cpu/arm926ejs/mx25/generic.c @@ -0,0 +1,263 @@ +/* + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby jrigby@gmail.com + * + * Based on mx27/generic.c: + * Copyright (c) 2008 Eric Jarrige eric.jarrige@armadeus.org + * Copyright (c) 2009 Ilya Yanok yanok@emcraft.com + * + * 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 <div64.h> +#include <netdev.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/imx25-pinmux.h> +#ifdef CONFIG_MXC_MMC +#include <asm/arch/mxcmmc.h> +#endif + +/* + * get the system pll clock in Hz + * + * mfi + mfn / (mfd +1) + * f = 2 * f_ref * -------------------- + * pd + 1 + */ +static unsigned int imx_decode_pll (unsigned int pll, unsigned int f_ref) +{ + unsigned int mfi = (pll >> CCM_PLL_MFI_SHIFT) + & CCM_PLL_MFI_MASK; + unsigned int mfn = (pll >> CCM_PLL_MFN_SHIFT) + & CCM_PLL_MFN_MASK; + unsigned int mfd = (pll >> CCM_PLL_MFD_SHIFT) + & CCM_PLL_MFD_MASK; + unsigned int pd = (pll >> CCM_PLL_PD_SHIFT) + & CCM_PLL_PD_MASK; + + mfi = mfi <= 5 ? 5 : mfi; + + return lldiv (2 * (u64) f_ref * (mfi * (mfd + 1) + mfn), + (mfd + 1) * (pd + 1)); +} + +static ulong imx_get_mpllclk (void) +{ + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + ulong fref = 24000000; + + return imx_decode_pll (readl (&ccm->mpctl), fref); +} + +ulong imx_get_armclk (void) +{ + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + ulong cctl = readl (&ccm->cctl); + ulong fref = imx_get_mpllclk (); + ulong div; + + if (cctl & CCM_CCTL_ARM_SRC) + fref = lldiv ((fref * 3), 4); + + div = ((cctl >> CCM_CCTL_ARM_DIV_SHIFT) + & CCM_CCTL_ARM_DIV_MASK) + 1; + + return lldiv (fref, div); +} + +ulong imx_get_ahbclk (void) +{ + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + ulong cctl = readl (&ccm->cctl); + ulong fref = imx_get_armclk (); + ulong div; + + div = ((cctl >> CCM_CCTL_AHB_DIV_SHIFT) + & CCM_CCTL_AHB_DIV_MASK) + 1; + + return lldiv (fref, div); +} + +ulong imx_get_perclk (int clk) +{ + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + ulong fref = imx_get_ahbclk (); + ulong div; + + div = readl (&ccm->pcdr[CCM_PERCLK_REG (clk)]); + div = ((div >> CCM_PERCLK_SHIFT (clk)) & CCM_PERCLK_MASK) + 1; + + return lldiv (fref, div); +} + +#if defined(CONFIG_DISPLAY_CPUINFO) +int print_cpuinfo (void) +{ + char buf[32]; + + printf ("CPU: Freescale i.MX25 at %s MHz\n\n", + strmhz (buf, imx_get_mpllclk ())); + return 0; +} +#endif + +int cpu_eth_init (bd_t * bis) +{ +#if defined(CONFIG_FEC_MXC) + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + ulong val; + + val = readl (&ccm->cgr0); + val |= (1 << 23); + writel (val, &ccm->cgr0); + return fecmxc_initialize (bis); +#else + return 0; +#endif +} + +/* + * Initializes on-chip MMC controllers. + * to override, implement board_mmc_init() + */ +int cpu_mmc_init (bd_t * bis) +{ +#ifdef CONFIG_MXC_MMC + return mxc_mmc_init (bis); +#else + return 0; +#endif +} + +#ifdef CONFIG_MXC_UART +void mx25_uart_init_pins (void) +{ + struct iomuxc_mux_ctl *muxctl; + struct iomuxc_pad_ctl *padctl; + u32 inpadctl; + u32 outpadctl; + u32 muxmode0; + + muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; + padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; + muxmode0 = MX25_PIN_MUX_MODE (0); + /* + * set up input pins with hysteresis and 100K pull-ups + */ + inpadctl = MX25_PIN_PAD_CTL_HYS + | MX25_PIN_PAD_CTL_PKE + | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PU; + + /* + * set up output pins with 100K pull-downs + * FIXME: need to revisit this + * PUE is ignored if PKE is not set + * so the right value here is likely + * 0x0 for no pull up/down + * or + * 0xc0 for 100k pull down + */ + outpadctl = MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; + + /* UART1 */ + /* rxd */ + writel (muxmode0, &muxctl->pad_uart1_rxd); + writel (inpadctl, &padctl->pad_uart1_rxd); + + /* txd */ + writel (muxmode0, &muxctl->pad_uart1_txd); + writel (outpadctl, &padctl->pad_uart1_txd); + + /* rts */ + writel (muxmode0, &muxctl->pad_uart1_rts); + writel (outpadctl, &padctl->pad_uart1_rts); + + /* cts */ + writel (muxmode0, &muxctl->pad_uart1_cts); + writel (inpadctl, &padctl->pad_uart1_cts); +} +#endif /* CONFIG_MXC_UART */ + +#ifdef CONFIG_FEC_MXC +void mx25_fec_init_pins (void) +{ + struct iomuxc_mux_ctl *muxctl; + struct iomuxc_pad_ctl *padctl; + u32 inpadctl_100kpd; + u32 inpadctl_22kpu; + u32 outpadctl; + u32 muxmode0; + + muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; + padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; + muxmode0 = MX25_PIN_MUX_MODE (0); + inpadctl_100kpd = MX25_PIN_PAD_CTL_HYS + | MX25_PIN_PAD_CTL_PKE + | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; + inpadctl_22kpu = MX25_PIN_PAD_CTL_HYS + | MX25_PIN_PAD_CTL_PKE + | MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_22K_PU; + /* + * set up output pins with 100K pull-downs + * FIXME: need to revisit this + * PUE is ignored if PKE is not set + * so the right value here is likely + * 0x0 for no pull + * or + * 0xc0 for 100k pull down + */ + outpadctl = MX25_PIN_PAD_CTL_PUE | MX25_PIN_PAD_CTL_100K_PD; + + /* FEC_TX_CLK */ + writel (muxmode0, &muxctl->pad_fec_tx_clk); + writel (inpadctl_100kpd, &padctl->pad_fec_tx_clk); + + /* FEC_RX_DV */ + writel (muxmode0, &muxctl->pad_fec_rx_dv); + writel (inpadctl_100kpd, &padctl->pad_fec_rx_dv); + + /* FEC_RDATA0 */ + writel (muxmode0, &muxctl->pad_fec_rdata0); + writel (inpadctl_100kpd, &padctl->pad_fec_rdata0); + + /* FEC_TDATA0 */ + writel (muxmode0, &muxctl->pad_fec_tdata0); + writel (outpadctl, &padctl->pad_fec_tdata0); + + /* FEC_TX_EN */ + writel (muxmode0, &muxctl->pad_fec_tx_en); + writel (outpadctl, &padctl->pad_fec_tx_en); + + /* FEC_MDC */ + writel (muxmode0, &muxctl->pad_fec_mdc); + writel (outpadctl, &padctl->pad_fec_mdc); + + /* FEC_MDIO */ + writel (muxmode0, &muxctl->pad_fec_mdio); + writel (inpadctl_22kpu, &padctl->pad_fec_mdio); + + /* FEC_RDATA1 */ + writel (muxmode0, &muxctl->pad_fec_rdata1); + writel (inpadctl_100kpd, &padctl->pad_fec_rdata1); + + /* FEC_TDATA1 */ + writel (muxmode0, &muxctl->pad_fec_tdata1); + writel (outpadctl, &padctl->pad_fec_tdata1); + +} +#endif /* CONFIG_FEC_MXC */ diff --git a/cpu/arm926ejs/mx25/reset.c b/cpu/arm926ejs/mx25/reset.c new file mode 100644 index 0000000..1e33150 --- /dev/null +++ b/cpu/arm926ejs/mx25/reset.c @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke azu@sysgo.de + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, gj@denx.de + * + * (C) Copyright 2009 + * Ilya Yanok, Emcraft Systems Ltd, yanok@emcraft.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 <asm/io.h> +#include <asm/arch/imx-regs.h> + +/* + * Reset the cpu by setting up the watchdog timer and let it time out + */ +void reset_cpu (ulong ignored) +{ + struct wdog_regs *regs = (struct wdog_regs *)IMX_WDT_BASE; + /* Disable watchdog and set Time-Out field to 0 */ + writel (0x00000000, &regs->wcr); + + /* Write Service Sequence */ + writel (0x00005555, &regs->wsr); + writel (0x0000AAAA, &regs->wsr); + + /* Enable watchdog */ + writel (WCR_WDE, &regs->wcr); + + while (1) ; +} diff --git a/cpu/arm926ejs/mx25/timer.c b/cpu/arm926ejs/mx25/timer.c new file mode 100644 index 0000000..11d41a8 --- /dev/null +++ b/cpu/arm926ejs/mx25/timer.c @@ -0,0 +1,187 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke azu@sysgo.de + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, gj@denx.de + * + * (C) Copyright 2009 + * Ilya Yanok, Emcraft Systems Ltd, yanok@emcraft.com + * + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby jrigby@gmail.com + * Add support for MX25 + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 <div64.h> +#include <asm/io.h> +#include <asm/arch/imx-regs.h> + +static ulong timestamp; +static ulong lastinc; + +/* + * "time" is measured in 1 / CONFIG_SYS_HZ seconds, + * "tick" is internal timer period + */ +#ifdef CONFIG_MX25_TIMER_HIGH_PRECISION +/* ~0.4% error - measured with stop-watch on 100s boot-delay */ +static inline unsigned long long tick_to_time(unsigned long long tick) +{ + tick *= CONFIG_SYS_HZ; + do_div(tick, CONFIG_MX25_CLK32); + return tick; +} + +static inline unsigned long long time_to_tick(unsigned long long time) +{ + time *= CONFIG_MX25_CLK32; + do_div(time, CONFIG_SYS_HZ); + return time; +} + +static inline unsigned long long us_to_tick(unsigned long long us) +{ + us = us * CONFIG_MX25_CLK32 + 999999; + do_div(us, 1000000); + return us; +} +#else +/* ~2% error */ +#define TICK_PER_TIME ((CONFIG_MX25_CLK32 + CONFIG_SYS_HZ / 2) / \ + CONFIG_SYS_HZ) +#define US_PER_TICK (1000000 / CONFIG_MX25_CLK32) + +static inline unsigned long long tick_to_time(unsigned long long tick) +{ + do_div(tick, TICK_PER_TIME); + return tick; +} + +static inline unsigned long long time_to_tick(unsigned long long time) +{ + return time * TICK_PER_TIME; +} + +static inline unsigned long long us_to_tick(unsigned long long us) +{ + us += US_PER_TICK - 1; + do_div(us, US_PER_TICK); + return us; +} +#endif + +/* nothing really to do with interrupts, just starts up a counter. */ +/* The 32KHz 32-bit timer overruns in 134217 seconds */ +int timer_init(void) +{ + int i; + struct gpt_regs *gpt = (struct gpt_regs *)IMX_GPT1_BASE; + struct ccm_regs *ccm = (struct ccm_regs *)IMX_CCM_BASE; + + /* setup GP Timer 1 */ + writel(GPT_CTRL_SWR, &gpt->ctrl); + + writel(readl(&ccm->cgr1) | CCM_CGR1_GPT1, &ccm->cgr1); + + for (i = 0; i < 100; i++) + writel(0, &gpt->ctrl); /* We have no udelay by now */ + writel(0, &gpt->pre); /* prescaler = 1 */ + /* Freerun Mode, 32KHz input */ + writel(readl(&gpt->ctrl) | GPT_CTRL_CLKSOURCE_32 | GPT_CTRL_FRR, + &gpt->ctrl); + writel(readl(&gpt->ctrl) | GPT_CTRL_TEN, &gpt->ctrl); + + return 0; +} + +void reset_timer_masked(void) +{ + struct gpt_regs *gpt = (struct gpt_regs *)IMX_GPT1_BASE; + /* reset time */ + /* capture current incrementer value time */ + lastinc = readl(&gpt->counter); + timestamp = 0; /* start "advancing" time stamp from 0 */ +} + +void reset_timer(void) +{ + reset_timer_masked(); +} + +unsigned long long get_ticks (void) +{ + struct gpt_regs *gpt = (struct gpt_regs *)IMX_GPT1_BASE; + ulong now = readl(&gpt->counter); /* current tick value */ + + if (now >= lastinc) { + /* + * normal mode (non roll) + * move stamp forward with absolut diff ticks + */ + timestamp += (now - lastinc); + } else { + /* we have rollover of incrementer */ + timestamp += (0xFFFFFFFF - lastinc) + now; + } + lastinc = now; + return timestamp; +} + +ulong get_timer_masked (void) +{ + /* + * get_ticks() returns a long long (64 bit), it wraps in + * 2^64 / CONFIG_MX25_CLK32 = 2^64 / 2^15 = 2^49 ~ 5 * 10^14 (s) ~ + * 5 * 10^9 days... and get_ticks() * CONFIG_SYS_HZ wraps in + * 5 * 10^6 days - long enough. + */ + return tick_to_time(get_ticks()); +} + +ulong get_timer (ulong base) +{ + return get_timer_masked () - base; +} + +void set_timer (ulong t) +{ + timestamp = time_to_tick(t); +} + +/* delay x useconds AND preserve advance timstamp value */ +void __udelay (unsigned long usec) +{ + unsigned long long tmp; + ulong tmo; + + tmo = us_to_tick(usec); + tmp = get_ticks() + tmo; /* get current timestamp */ + + while (get_ticks() < tmp) /* loop till event */ + /*NOP*/; +} diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c index 7dcedf6..70c1c1e 100644 --- a/drivers/serial/serial_mxc.c +++ b/drivers/serial/serial_mxc.c @@ -27,15 +27,15 @@

#define __REG(x) (*((volatile u32 *)(x)))

-#ifdef CONFIG_SYS_MX31_UART1 +#if defined(CONFIG_SYS_MX31_UART1) || defined(CONFIG_SYS_MX25_UART1) #define UART_PHYS 0x43f90000 -#elif defined(CONFIG_SYS_MX31_UART2) +#elif defined(CONFIG_SYS_MX31_UART2) || defined(CONFIG_SYS_MX25_UART2) #define UART_PHYS 0x43f94000 -#elif defined(CONFIG_SYS_MX31_UART3) +#elif defined(CONFIG_SYS_MX31_UART3) || defined(CONFIG_SYS_MX25_UART3) #define UART_PHYS 0x5000c000 -#elif defined(CONFIG_SYS_MX31_UART4) +#elif defined(CONFIG_SYS_MX31_UART4) || defined(CONFIG_SYS_MX25_UART4) #define UART_PHYS 0x43fb0000 -#elif defined(CONFIG_SYS_MX31_UART5) +#elif defined(CONFIG_SYS_MX31_UART5) || defined(CONFIG_SYS_MX25_UART5) #define UART_PHYS 0x43fb4000 #elif defined(CONFIG_SYS_MX27_UART1) #define UART_PHYS 0x1000a000 diff --git a/include/asm-arm/arch-mx25/clock.h b/include/asm-arm/arch-mx25/clock.h new file mode 100644 index 0000000..b0752e7 --- /dev/null +++ b/include/asm-arm/arch-mx25/clock.h @@ -0,0 +1,35 @@ +/* + * + * (c) 2009 Ilya Yanok, Emcraft Systems yanok@emcraft.com + * + * Modified for mx25 by John Rigby jrigby@gmail.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#ifndef __ASM_ARCH_CLOCK_H +#define __ASM_ARCH_CLOCK_H + +ulong imx_get_perclk(int clk); +ulong imx_get_ahbclk(void); + +#define imx_get_uartclk() imx_get_perclk(15) + + +#endif /* __ASM_ARCH_CLOCK_H */ diff --git a/include/asm-arm/arch-mx25/imx-regs.h b/include/asm-arm/arch-mx25/imx-regs.h new file mode 100644 index 0000000..f709bd8 --- /dev/null +++ b/include/asm-arm/arch-mx25/imx-regs.h @@ -0,0 +1,316 @@ +/* + * Copyright (C) 2009, DENX Software Engineering + * Author: John Rigby <jcrigby@gmail.com + * + * Based on arch-mx31/mx31-regs.h + * Copyright (C) 2009 Ilya Yanok, + * Emcraft Systems yanok@emcraft.com + * and arch-mx27/imx-regs.h + * Copyright (C) 2007 Pengutronix, + * Sascha Hauer s.hauer@pengutronix.de + * Copyright (C) 2009 Ilya Yanok, + * Emcraft Systems yanok@emcraft.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#ifndef _IMX_REGS_H +#define _IMX_REGS_H + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_FEC_MXC +extern void mx25_fec_init_pins(void); +#endif + +/* Clock Control Module (CCM) registers */ +struct ccm_regs { + u32 mpctl; /* Core PLL Control */ + u32 upctl; /* USB PLL Control */ + u32 cctl; /* Clock Control */ + u32 cgr0; /* Clock Gating Control 0 */ + u32 cgr1; /* Clock Gating Control 1 */ + u32 cgr2; /* Clock Gating Control 2 */ + u32 pcdr[4]; /* PER Clock Dividers */ + u32 rcsr; /* CCM Status */ + u32 crdr; /* CCM Reset and Debug */ + u32 dcvr0; /* DPTC Comparator Value 0 */ + u32 dcvr1; /* DPTC Comparator Value 1 */ + u32 dcvr2; /* DPTC Comparator Value 2 */ + u32 dcvr3; /* DPTC Comparator Value 3 */ + u32 ltr0; /* Load Tracking 0 */ + u32 ltr1; /* Load Tracking 1 */ + u32 ltr2; /* Load Tracking 2 */ + u32 ltr3; /* Load Tracking 3 */ + u32 ltbr0; /* Load Tracking Buffer 0 */ + u32 ltbr1; /* Load Tracking Buffer 1 */ + u32 pcmr0; /* Power Management Control 0 */ + u32 pcmr1; /* Power Management Control 1 */ + u32 pcmr2; /* Power Management Control 2 */ + u32 mcr; /* Miscellaneous Control */ + u32 lpimr0; /* Low Power Interrupt Mask 0 */ + u32 lpimr1; /* Low Power Interrupt Mask 1 */ +}; + +/* Enhanced SDRAM Controller (ESDRAMC) registers */ +struct esdramc_regs { + u32 ctl0; /* control 0 */ + u32 cfg0; /* configuration 0 */ + u32 ctl1; /* control 1 */ + u32 cfg1; /* configuration 1 */ + u32 misc; /* miscellaneous */ + u32 pad[3]; + u32 cdly1; /* Delay Line 1 configuration debug */ + u32 cdly2; /* delay line 2 configuration debug */ + u32 cdly3; /* delay line 3 configuration debug */ + u32 cdly4; /* delay line 4 configuration debug */ + u32 cdly5; /* delay line 5 configuration debug */ + u32 cdlyl; /* delay line cycle length debug */ +}; + +/* GPIO registers */ +struct gpio_regs { + u32 dr; /* data */ + u32 dir; /* direction */ + u32 psr; /* pad satus */ + u32 icr1; /* interrupt config 1 */ + u32 icr2; /* interrupt config 2 */ + u32 imr; /* interrupt mask */ + u32 isr; /* interrupt status */ + u32 edge_sel; /* edge select */ +}; + +/* General Purpose Timer (GPT) registers */ +struct gpt_regs { + u32 ctrl; /* control */ + u32 pre; /* prescaler */ + u32 stat; /* status */ + u32 intr; /* interrupt */ + u32 cmp[3]; /* output compare 1-3 */ + u32 capt[2]; /* input capture 1-2 */ + u32 counter; /* counter */ +}; + +/* Watchdog Timer (WDOG) registers */ +struct wdog_regs { + u32 wcr; /* Control */ + u32 wsr; /* Service */ + u32 wrsr; /* Reset Status */ + u32 wicr; /* Interrupt Control */ + u32 wmcr; /* Misc Control */ +}; + +/* IIM control registers */ +struct iim_regs { + u32 iim_stat; + u32 iim_statm; + u32 iim_err; + u32 iim_emask; + u32 iim_fctl; + u32 iim_ua; + u32 iim_la; + u32 iim_sdat; + u32 iim_prev; + u32 iim_srev; + u32 iim_prog_p; + u32 res1[0x1f5]; + u32 iim_bank_area0[0x20]; + u32 res2[0xe0]; + u32 iim_bank_area1[0x20]; + u32 res3[0xe0]; + u32 iim_bank_area2[0x20]; +}; +#endif + +/* AIPS 1 */ +#define IMX_AIPS1_BASE (0x43F00000) +#define IMX_MAX_BASE (0x43F04000) +#define IMX_CLKCTL_BASE (0x43F08000) +#define IMX_ETB_SLOT4_BASE (0x43F0C000) +#define IMX_ETB_SLOT5_BASE (0x43F10000) +#define IMX_ECT_CTIO_BASE (0x43F18000) +#define IMX_I2C_BASE (0x43F80000) +#define IMX_I2C3_BASE (0x43F84000) +#define IMX_CAN1_BASE (0x43F88000) +#define IMX_CAN2_BASE (0x43F8C000) +#define IMX_UART1_BASE (0x43F90000) +#define IMX_UART2_BASE (0x43F94000) +#define IMX_I2C2_BASE (0x43F98000) +#define IMX_OWIRE_BASE (0x43F9C000) +#define IMX_CSPI1_BASE (0x43FA4000) +#define IMX_KPP_BASE (0x43FA8000) +#define IMX_IOPADMUX_BASE (0x43FAC000) +#define IMX_IOPADCTL_BASE (0x43FAC22C) +#define IMX_IOPADGRPCTL_BASE (0x43FAC418) +#define IMX_IOPADINPUTSEL_BASE (0x43FAC460) +#define IMX_AUDMUX_BASE (0x43FB0000) +#define IMX_ECT_IP1_BASE (0x43FB8000) +#define IMX_ECT_IP2_BASE (0x43FBC000) + +/* SPBA */ +#define IMX_SPBA_BASE (0x50000000) +#define IMX_CSPI3_BASE (0x50004000) +#define IMX_UART4_BASE (0x50008000) +#define IMX_UART3_BASE (0x5000C000) +#define IMX_CSPI2_BASE (0x50010000) +#define IMX_SSI2_BASE (0x50014000) +#define IMX_ESAI_BASE (0x50018000) +#define IMX_ATA_DMA_BASE (0x50020000) +#define IMX_SIM1_BASE (0x50024000) +#define IMX_SIM2_BASE (0x50028000) +#define IMX_UART5_BASE (0x5002C000) +#define IMX_TSC_BASE (0x50030000) +#define IMX_SSI1_BASE (0x50034000) +#define IMX_FEC_BASE (0x50038000) +#define IMX_SPBA_CTRL_BASE (0x5003C000) + +/* AIPS 2 */ +#define IMX_AIPS2_BASE (0x53F00000) +#define IMX_CCM_BASE (0x53F80000) +#define IMX_GPT4_BASE (0x53F84000) +#define IMX_GPT3_BASE (0x53F88000) +#define IMX_GPT2_BASE (0x53F8C000) +#define IMX_GPT1_BASE (0x53F90000) +#define IMX_EPIT1_BASE (0x53F94000) +#define IMX_EPIT2_BASE (0x53F98000) +#define IMX_GPIO4_BASE (0x53F9C000) +#define IMX_PWM2_BASE (0x53FA0000) +#define IMX_GPIO3_BASE (0x53FA4000) +#define IMX_PWM3_BASE (0x53FA8000) +#define IMX_SCC_BASE (0x53FAC000) +#define IMX_SCM_BASE (0x53FAE000) +#define IMX_SMN_BASE (0x53FAF000) +#define IMX_RNGD_BASE (0x53FB0000) +#define IMX_MMC_SDHC1_BASE (0x53FB4000) +#define IMX_MMC_SDHC2_BASE (0x53FB8000) +#define IMX_LCDC_BASE (0x53FBC000) +#define IMX_SLCDC_BASE (0x53FC0000) +#define IMX_PWM4_BASE (0x53FC8000) +#define IMX_GPIO1_BASE (0x53FCC000) +#define IMX_GPIO2_BASE (0x53FD0000) +#define IMX_SDMA_BASE (0x53FD4000) +#define IMX_WDT_BASE (0x53FDC000) +#define IMX_PWM1_BASE (0x53FE0000) +#define IMX_RTIC_BASE (0x53FEC000) +#define IMX_IIM_BASE (0x53FF0000) +#define IMX_USB_BASE (0x53FF4000) +#define IMX_CSI_BASE (0x53FF8000) +#define IMX_DRYICE_BASE (0x53FFC000) + +#define IMX_ARM926_ROMPATCH (0x60000000) +#define IMX_ARM926_ASIC (0x68000000) + +/* 128K Internal Static RAM */ +#define IMX_RAM_BASE (0x78000000) + +/* SDRAM BANKS */ +#define IMX_SDRAM_BANK0_BASE (0x80000000) +#define IMX_SDRAM_BANK1_BASE (0x90000000) + +#define IMX_WEIM_CS0 (0xA0000000) +#define IMX_WEIM_CS1 (0xA8000000) +#define IMX_WEIM_CS2 (0xB0000000) +#define IMX_WEIM_CS3 (0xB2000000) +#define IMX_WEIM_CS4 (0xB4000000) +#define IMX_ESDRAMC_BASE (0xB8001000) +#define IMX_WEIM_CTRL_BASE (0xB8002000) +#define IMX_M3IF_CTRL_BASE (0xB8003000) +#define IMX_EMI_CTRL_BASE (0xB8004000) + +/* NAND Flash Controller */ +#define IMX_NFC_BASE (0xBB000000) +#define NFC_BASE_ADDR IMX_NFC_BASE + +/* CCM bitfields */ +#define CCM_PLL_MFI_SHIFT 10 +#define CCM_PLL_MFI_MASK 0xf +#define CCM_PLL_MFN_SHIFT 0 +#define CCM_PLL_MFN_MASK 0x3ff +#define CCM_PLL_MFD_SHIFT 16 +#define CCM_PLL_MFD_MASK 0x3ff +#define CCM_PLL_PD_SHIFT 26 +#define CCM_PLL_PD_MASK 0xf +#define CCM_CCTL_ARM_DIV_SHIFT 30 +#define CCM_CCTL_ARM_DIV_MASK 3 +#define CCM_CCTL_AHB_DIV_SHIFT 28 +#define CCM_CCTL_AHB_DIV_MASK 3 +#define CCM_CCTL_ARM_SRC (1 << 14) +#define CCM_CGR1_GPT1 (1 << 19) +#define CCM_PERCLK_REG(clk) (clk / 4) +#define CCM_PERCLK_SHIFT(clk) (8 * (clk % 4)) +#define CCM_PERCLK_MASK 0x3f +#define CCM_RCSR_NF_16BIT_SEL (1 << 14) +#define CCM_RCSR_NF_PS(v) ((v >> 26) & 3) + +/* ESDRAM Controller register bitfields */ +#define ESDCTL_PRCT(x) (((x) & 0x3f) << 0) +#define ESDCTL_BL (1 << 7) +#define ESDCTL_FP (1 << 8) +#define ESDCTL_PWDT(x) (((x) & 3) << 10) +#define ESDCTL_SREFR(x) (((x) & 7) << 13) +#define ESDCTL_DSIZ_16_UPPER (0 << 16) +#define ESDCTL_DSIZ_16_LOWER (1 << 16) +#define ESDCTL_DSIZ_32 (2 << 16) +#define ESDCTL_COL8 (0 << 20) +#define ESDCTL_COL9 (1 << 20) +#define ESDCTL_COL10 (2 << 20) +#define ESDCTL_ROW11 (0 << 24) +#define ESDCTL_ROW12 (1 << 24) +#define ESDCTL_ROW13 (2 << 24) +#define ESDCTL_ROW14 (3 << 24) +#define ESDCTL_ROW15 (4 << 24) +#define ESDCTL_SP (1 << 27) +#define ESDCTL_SMODE_NORMAL (0 << 28) +#define ESDCTL_SMODE_PRECHARGE (1 << 28) +#define ESDCTL_SMODE_AUTO_REF (2 << 28) +#define ESDCTL_SMODE_LOAD_MODE (3 << 28) +#define ESDCTL_SMODE_MAN_REF (4 << 28) +#define ESDCTL_SDE (1 << 31) + +#define ESDCFG_TRC(x) (((x) & 0xf) << 0) +#define ESDCFG_TRCD(x) (((x) & 0x7) << 4) +#define ESDCFG_TCAS(x) (((x) & 0x3) << 8) +#define ESDCFG_TRRD(x) (((x) & 0x3) << 10) +#define ESDCFG_TRAS(x) (((x) & 0x7) << 12) +#define ESDCFG_TWR (1 << 15) +#define ESDCFG_TMRD(x) (((x) & 0x3) << 16) +#define ESDCFG_TRP(x) (((x) & 0x3) << 18) +#define ESDCFG_TWTR (1 << 20) +#define ESDCFG_TXP(x) (((x) & 0x3) << 21) + +#define ESDMISC_RST (1 << 1) +#define ESDMISC_MDDREN (1 << 2) +#define ESDMISC_MDDR_DL_RST (1 << 3) +#define ESDMISC_MDDR_MDIS (1 << 4) +#define ESDMISC_LHD (1 << 5) +#define ESDMISC_MA10_SHARE (1 << 6) +#define ESDMISC_SDRAM_RDY (1 << 31) + +/* GPT bits */ +#define GPT_CTRL_SWR (1 << 15) /* Software reset */ +#define GPT_CTRL_FRR (1 << 9) /* Freerun / restart */ +#define GPT_CTRL_CLKSOURCE_32 (4 << 6) /* Clock source */ +#define GPT_CTRL_TEN 1 /* Timer enable */ + +/* WDOG enable */ +#define WCR_WDE 0x04 + +/* FUSE bank offsets */ +#define IIM0_MAC 0x1a + +#endif /* _IMX_REGS_H */ diff --git a/include/asm-arm/arch-mx25/imx25-pinmux.h b/include/asm-arm/arch-mx25/imx25-pinmux.h new file mode 100644 index 0000000..a4c658b --- /dev/null +++ b/include/asm-arm/arch-mx25/imx25-pinmux.h @@ -0,0 +1,421 @@ +/* + * iopin settings are controlled by four different sets of registers + * iopad mux control + * individual iopad setup (voltage select, pull/keep, drive strength ...) + * group iopad setup (same as above but for groups of signals) + * input select when multiple inputs are possible + */ + +/* + * software pad mux control + */ +/* SW Input On (Loopback) */ +#define MX25_PIN_MUX_SION (1 << 4) +/* MUX Mode (0-7) */ +#define MX25_PIN_MUX_MODE(mode) ((mode & 0x7) << 0) +struct iomuxc_mux_ctl { + u32 gpr1; + u32 observe_int_mux; + u32 pad_a10; + u32 pad_a13; + u32 pad_a14; + u32 pad_a15; + u32 pad_a16; + u32 pad_a17; + u32 pad_a18; + u32 pad_a19; + u32 pad_a20; + u32 pad_a21; + u32 pad_a22; + u32 pad_a23; + u32 pad_a24; + u32 pad_a25; + u32 pad_eb0; + u32 pad_eb1; + u32 pad_oe; + u32 pad_cs0; + u32 pad_cs1; + u32 pad_cs4; + u32 pad_cs5; + u32 pad_nf_ce0; + u32 pad_ecb; + u32 pad_lba; + u32 pad_bclk; + u32 pad_rw; + u32 pad_nfwe_b; + u32 pad_nfre_b; + u32 pad_nfale; + u32 pad_nfcle; + u32 pad_nfwp_b; + u32 pad_nfrb; + u32 pad_d15; + u32 pad_d14; + u32 pad_d13; + u32 pad_d12; + u32 pad_d11; + u32 pad_d10; + u32 pad_d9; + u32 pad_d8; + u32 pad_d7; + u32 pad_d6; + u32 pad_d5; + u32 pad_d4; + u32 pad_d3; + u32 pad_d2; + u32 pad_d1; + u32 pad_d0; + u32 pad_ld0; + u32 pad_ld1; + u32 pad_ld2; + u32 pad_ld3; + u32 pad_ld4; + u32 pad_ld5; + u32 pad_ld6; + u32 pad_ld7; + u32 pad_ld8; + u32 pad_ld9; + u32 pad_ld10; + u32 pad_ld11; + u32 pad_ld12; + u32 pad_ld13; + u32 pad_ld14; + u32 pad_ld15; + u32 pad_hsync; + u32 pad_vsync; + u32 pad_lsclk; + u32 pad_oe_acd; + u32 pad_contrast; + u32 pad_pwm; + u32 pad_csi_d2; + u32 pad_csi_d3; + u32 pad_csi_d4; + u32 pad_csi_d5; + u32 pad_csi_d6; + u32 pad_csi_d7; + u32 pad_csi_d8; + u32 pad_csi_d9; + u32 pad_csi_mclk; + u32 pad_csi_vsync; + u32 pad_csi_hsync; + u32 pad_csi_pixclk; + u32 pad_i2c1_clk; + u32 pad_i2c1_dat; + u32 pad_cspi1_mosi; + u32 pad_cspi1_miso; + u32 pad_cspi1_ss0; + u32 pad_cspi1_ss1; + u32 pad_cspi1_sclk; + u32 pad_cspi1_rdy; + u32 pad_uart1_rxd; + u32 pad_uart1_txd; + u32 pad_uart1_rts; + u32 pad_uart1_cts; + u32 pad_uart2_rxd; + u32 pad_uart2_txd; + u32 pad_uart2_rts; + u32 pad_uart2_cts; + u32 pad_sd1_cmd; + u32 pad_sd1_clk; + u32 pad_sd1_data0; + u32 pad_sd1_data1; + u32 pad_sd1_data2; + u32 pad_sd1_data3; + u32 pad_kpp_row0; + u32 pad_kpp_row1; + u32 pad_kpp_row2; + u32 pad_kpp_row3; + u32 pad_kpp_col0; + u32 pad_kpp_col1; + u32 pad_kpp_col2; + u32 pad_kpp_col3; + u32 pad_fec_mdc; + u32 pad_fec_mdio; + u32 pad_fec_tdata0; + u32 pad_fec_tdata1; + u32 pad_fec_tx_en; + u32 pad_fec_rdata0; + u32 pad_fec_rdata1; + u32 pad_fec_rx_dv; + u32 pad_fec_tx_clk; + u32 pad_rtck; + u32 pad_de_b; + u32 pad_gpio_a; + u32 pad_gpio_b; + u32 pad_gpio_c; + u32 pad_gpio_d; + u32 pad_gpio_e; + u32 pad_gpio_f; + u32 pad_ext_armclk; + u32 pad_upll_bypclk; + u32 pad_vstby_req; + u32 pad_vstby_ack; + u32 pad_power_fail; + u32 pad_clko; + u32 pad_boot_mode0; + u32 pad_boot_mode1; +}; + +/* + * software pad control + */ +/* Select 3.3 or 1.8 volts */ +#define MX25_PIN_PAD_CTL_DVS_33 (0 << 13) +#define MX25_PIN_PAD_CTL_DVS_18 (1 << 13) +/* Enable hysteresis */ +#define MX25_PIN_PAD_CTL_HYS (1 << 8) +/* Enable pull/keeper */ +#define MX25_PIN_PAD_CTL_PKE (1 << 7) +/* 0 - keeper / 1 - pull */ +#define MX25_PIN_PAD_CTL_PUE (1 << 6) +/* pull up/down strength */ +#define MX25_PIN_PAD_CTL_100K_PD (0 << 4) +#define MX25_PIN_PAD_CTL_47K_PU (1 << 4) +#define MX25_PIN_PAD_CTL_100K_PU (2 << 4) +#define MX25_PIN_PAD_CTL_22K_PU (3 << 4) +/* open drain control */ +#define MX25_PIN_PAD_CTL_OD (1 << 3) +/* drive strength */ +#define MX25_PIN_PAD_CTL_DS_NOM (0 << 1) +#define MX25_PIN_PAD_CTL_DS_HIGH (1 << 1) +#define MX25_PIN_PAD_CTL_DS_MAX (2 << 1) +#define MX25_PIN_PAD_CTL_DS_MAX11 (3 << 1) +/* slew rate */ +#define MX25_PIN_PAD_CTL_SRE_SLOW (0 << 0) +#define MX25_PIN_PAD_CTL_SRE_FAST (1 << 0) +struct iomuxc_pad_ctl { + u32 pad_a13; + u32 pad_a14; + u32 pad_a15; + u32 pad_a17; + u32 pad_a18; + u32 pad_a19; + u32 pad_a20; + u32 pad_a21; + u32 pad_a23; + u32 pad_a24; + u32 pad_a25; + u32 pad_eb0; + u32 pad_eb1; + u32 pad_oe; + u32 pad_cs4; + u32 pad_cs5; + u32 pad_nf_ce0; + u32 pad_ecb; + u32 pad_lba; + u32 pad_rw; + u32 pad_nfrb; + u32 pad_d15; + u32 pad_d14; + u32 pad_d13; + u32 pad_d12; + u32 pad_d11; + u32 pad_d10; + u32 pad_d9; + u32 pad_d8; + u32 pad_d7; + u32 pad_d6; + u32 pad_d5; + u32 pad_d4; + u32 pad_d3; + u32 pad_d2; + u32 pad_d1; + u32 pad_d0; + u32 pad_ld0; + u32 pad_ld1; + u32 pad_ld2; + u32 pad_ld3; + u32 pad_ld4; + u32 pad_ld5; + u32 pad_ld6; + u32 pad_ld7; + u32 pad_ld8; + u32 pad_ld9; + u32 pad_ld10; + u32 pad_ld11; + u32 pad_ld12; + u32 pad_ld13; + u32 pad_ld14; + u32 pad_ld15; + u32 pad_hsync; + u32 pad_vsync; + u32 pad_lsclk; + u32 pad_oe_acd; + u32 pad_contrast; + u32 pad_pwm; + u32 pad_csi_d2; + u32 pad_csi_d3; + u32 pad_csi_d4; + u32 pad_csi_d5; + u32 pad_csi_d6; + u32 pad_csi_d7; + u32 pad_csi_d8; + u32 pad_csi_d9; + u32 pad_csi_mclk; + u32 pad_csi_vsync; + u32 pad_csi_hsync; + u32 pad_csi_pixclk; + u32 pad_i2c1_clk; + u32 pad_i2c1_dat; + u32 pad_cspi1_mosi; + u32 pad_cspi1_miso; + u32 pad_cspi1_ss0; + u32 pad_cspi1_ss1; + u32 pad_cspi1_sclk; + u32 pad_cspi1_rdy; + u32 pad_uart1_rxd; + u32 pad_uart1_txd; + u32 pad_uart1_rts; + u32 pad_uart1_cts; + u32 pad_uart2_rxd; + u32 pad_uart2_txd; + u32 pad_uart2_rts; + u32 pad_uart2_cts; + u32 pad_sd1_cmd; + u32 pad_sd1_clk; + u32 pad_sd1_data0; + u32 pad_sd1_data1; + u32 pad_sd1_data2; + u32 pad_sd1_data3; + u32 pad_kpp_row0; + u32 pad_kpp_row1; + u32 pad_kpp_row2; + u32 pad_kpp_row3; + u32 pad_kpp_col0; + u32 pad_kpp_col1; + u32 pad_kpp_col2; + u32 pad_kpp_col3; + u32 pad_fec_mdc; + u32 pad_fec_mdio; + u32 pad_fec_tdata0; + u32 pad_fec_tdata1; + u32 pad_fec_tx_en; + u32 pad_fec_rdata0; + u32 pad_fec_rdata1; + u32 pad_fec_rx_dv; + u32 pad_fec_tx_clk; + u32 pad_rtck; + u32 pad_tdo; + u32 pad_de_b; + u32 pad_gpio_a; + u32 pad_gpio_b; + u32 pad_gpio_c; + u32 pad_gpio_d; + u32 pad_gpio_e; + u32 pad_gpio_f; + u32 pad_vstby_req; + u32 pad_vstby_ack; + u32 pad_power_fail; + u32 pad_clko; +}; + + +/* + * Pad group drive strength and voltage select + * Same fields as iomuxc_pad_ctl plus ddr type + */ +/* Select DDR type */ +#define MX25_PIN_PAD_CTL_DDR_18 (0 << 11) +#define MX25_PIN_PAD_CTL_DDR_33 (1 << 11) +#define MX25_PIN_PAD_CTL_DDR_MAX (2 << 11) +struct iomuxc_pad_grp_ctl { + u32 grp_dvs_misc; + u32 grp_dse_fec; + u32 grp_dvs_jtag; + u32 grp_dse_nfc; + u32 grp_dse_csi; + u32 grp_dse_weim; + u32 grp_dse_ddr; + u32 grp_dvs_crm; + u32 grp_dse_kpp; + u32 grp_dse_sdhc1; + u32 grp_dse_lcd; + u32 grp_dse_uart; + u32 grp_dvs_nfc; + u32 grp_dvs_csi; + u32 grp_dse_cspi1; + u32 grp_ddrtype; + u32 grp_dvs_sdhc1; + u32 grp_dvs_lcd; +}; + +/* + * Pad input select control + * Select which pad to connect to an input port + * where multiple pads can function as given input + */ +#define MX25_PAD_INPUT_SELECT_DAISY(in) ((in & 0x7) << 0) +struct iomuxc_pad_input_select { + u32 audmux_p4_input_da_amx; + u32 audmux_p4_input_db_amx; + u32 audmux_p4_input_rxclk_amx; + u32 audmux_p4_input_rxfs_amx; + u32 audmux_p4_input_txclk_amx; + u32 audmux_p4_input_txfs_amx; + u32 audmux_p7_input_da_amx; + u32 audmux_p7_input_txfs_amx; + u32 can1_ipp_ind_canrx; + u32 can2_ipp_ind_canrx; + u32 csi_ipp_csi_d_0; + u32 csi_ipp_csi_d_1; + u32 cspi1_ipp_ind_ss3_b; + u32 cspi2_ipp_cspi_clk_in; + u32 cspi2_ipp_ind_dataready_b; + u32 cspi2_ipp_ind_miso; + u32 cspi2_ipp_ind_mosi; + u32 cspi2_ipp_ind_ss0_b; + u32 cspi2_ipp_ind_ss1_b; + u32 cspi3_ipp_cspi_clk_in; + u32 cspi3_ipp_ind_dataready_b; + u32 cspi3_ipp_ind_miso; + u32 cspi3_ipp_ind_mosi; + u32 cspi3_ipp_ind_ss0_b; + u32 cspi3_ipp_ind_ss1_b; + u32 cspi3_ipp_ind_ss2_b; + u32 cspi3_ipp_ind_ss3_b; + u32 esdhc1_ipp_dat4_in; + u32 esdhc1_ipp_dat5_in; + u32 esdhc1_ipp_dat6_in; + u32 esdhc1_ipp_dat7_in; + u32 esdhc2_ipp_card_clk_in; + u32 esdhc2_ipp_cmd_in; + u32 esdhc2_ipp_dat0_in; + u32 esdhc2_ipp_dat1_in; + u32 esdhc2_ipp_dat2_in; + u32 esdhc2_ipp_dat3_in; + u32 esdhc2_ipp_dat4_in; + u32 esdhc2_ipp_dat5_in; + u32 esdhc2_ipp_dat6_in; + u32 esdhc2_ipp_dat7_in; + u32 fec_fec_col; + u32 fec_fec_crs; + u32 fec_fec_rdata_2; + u32 fec_fec_rdata_3; + u32 fec_fec_rx_clk; + u32 fec_fec_rx_er; + u32 i2c2_ipp_scl_in; + u32 i2c2_ipp_sda_in; + u32 i2c3_ipp_scl_in; + u32 i2c3_ipp_sda_in; + u32 kpp_ipp_ind_col_4; + u32 kpp_ipp_ind_col_5; + u32 kpp_ipp_ind_col_6; + u32 kpp_ipp_ind_col_7; + u32 kpp_ipp_ind_row_4; + u32 kpp_ipp_ind_row_5; + u32 kpp_ipp_ind_row_6; + u32 kpp_ipp_ind_row_7; + u32 sim1_pin_sim_rcvd1_in; + u32 sim1_pin_sim_simpd1; + u32 sim1_sim_rcvd1_io; + u32 sim2_pin_sim_rcvd1_in; + u32 sim2_pin_sim_simpd1; + u32 sim2_sim_rcvd1_io; + u32 uart3_ipp_uart_rts_b; + u32 uart3_ipp_uart_rxd_mux; + u32 uart4_ipp_uart_rts_b; + u32 uart4_ipp_uart_rxd_mux; + u32 uart5_ipp_uart_rts_b; + u32 uart5_ipp_uart_rxd_mux; + u32 usb_top_ipp_ind_otg_usb_oc; + u32 usb_top_ipp_ind_uh2_usb_oc; +};

This is an i.MX25 base board with only NAND so it uses nand_spl to boot.

Signed-off-by: John Rigby jcrigby@gmail.com

Tune configuration, add support for (redundant) environment in NAND. Signed-off-by: Wolfgang Denk wd@denx.de

Acked-by: Wolfgang Denk wd@denx.de CC: Fred Fan fanyefeng@gmail.com CC: Tom Tom.Rix@windriver.com --- MAINTAINERS | 4 + Makefile | 4 + board/karo/tx25/Makefile | 51 ++++++++++ board/karo/tx25/config.mk | 5 + board/karo/tx25/lowlevel_init.S | 131 +++++++++++++++++++++++++ board/karo/tx25/tx25.c | 176 ++++++++++++++++++++++++++++++++++ include/configs/tx25.h | 179 +++++++++++++++++++++++++++++++++++ nand_spl/board/karo/tx25/Makefile | 78 +++++++++++++++ nand_spl/board/karo/tx25/config.mk | 1 + nand_spl/board/karo/tx25/u-boot.lds | 58 +++++++++++ 10 files changed, 687 insertions(+), 0 deletions(-) create mode 100644 board/karo/tx25/Makefile create mode 100644 board/karo/tx25/config.mk create mode 100644 board/karo/tx25/lowlevel_init.S create mode 100644 board/karo/tx25/tx25.c create mode 100644 include/configs/tx25.h create mode 100644 nand_spl/board/karo/tx25/Makefile create mode 100644 nand_spl/board/karo/tx25/config.mk create mode 100644 nand_spl/board/karo/tx25/u-boot.lds

diff --git a/MAINTAINERS b/MAINTAINERS index e8ba4bc..7dc6dfe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -688,6 +688,10 @@ Tom Rix Tom.Rix@windriver.com

omap3_zoom2 ARM CORTEX-A8 (OMAP3xx SoC)

+John Rigby jcrigby@gmail.com + + tx25 i.MX25 + Stefan Roese sr@denx.de

ixdpg425 xscale diff --git a/Makefile b/Makefile index ed1a180..cab9168 100644 --- a/Makefile +++ b/Makefile @@ -3085,6 +3085,10 @@ trab_old_config: unconfig } @$(MKCONFIG) -a $(call xtract_trab,$@) arm arm920t trab NULL s3c24x0

+tx25_config : unconfig + @$(MKCONFIG) $(@:_config=) arm arm926ejs tx25 karo mx25 + @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk + VCMA9_config : unconfig @$(MKCONFIG) $(@:_config=) arm arm920t vcma9 mpl s3c24x0

diff --git a/board/karo/tx25/Makefile b/board/karo/tx25/Makefile new file mode 100644 index 0000000..b0e610f --- /dev/null +++ b/board/karo/tx25/Makefile @@ -0,0 +1,51 @@ +# +# (C) Copyright 2009 DENX Software Engineering +# Author: John Rigby jcrigby@gmail.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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 $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := tx25.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### + diff --git a/board/karo/tx25/config.mk b/board/karo/tx25/config.mk new file mode 100644 index 0000000..732a14a --- /dev/null +++ b/board/karo/tx25/config.mk @@ -0,0 +1,5 @@ +ifdef CONFIG_NAND_SPL +TEXT_BASE = 0x81ec0000 +else +TEXT_BASE = 0x81f00000 +endif diff --git a/board/karo/tx25/lowlevel_init.S b/board/karo/tx25/lowlevel_init.S new file mode 100644 index 0000000..823df10 --- /dev/null +++ b/board/karo/tx25/lowlevel_init.S @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby jrigby@gmail.com + * + * Based on U-Boot and RedBoot sources for several different i.mx + * platforms. + * + * 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 <asm/macro.h> + +.macro init_aips + write32 0x43f00000, 0x77777777 + write32 0x43f00004, 0x77777777 + write32 0x43f00000, 0x77777777 + write32 0x53f00004, 0x77777777 +.endm + +.macro init_max + write32 0x43f04000, 0x43210 + write32 0x43f04100, 0x43210 + write32 0x43f04200, 0x43210 + write32 0x43f04300, 0x43210 + write32 0x43f04400, 0x43210 + + write32 0x43f04010, 0x10 + write32 0x43f04110, 0x10 + write32 0x43f04210, 0x10 + write32 0x43f04310, 0x10 + write32 0x43f04410, 0x10 + + write32 0x43f04800, 0x0 + write32 0x43f04900, 0x0 + write32 0x43f04a00, 0x0 + write32 0x43f04b00, 0x0 + write32 0x43f04c00, 0x0 +.endm + +.macro init_m3if + write32 0xb8003000, 0x1 +.endm + +.macro init_clocks + /* + * clocks + * + * first enable CLKO debug output + * 0x40000000 enables the debug CLKO signal + * 0x05000000 sets CLKO divider to 6 + * 0x00600000 makes CLKO parent clk the USB clk + */ + write32 0x53f80064, 0x45600000 + write32 0x53f80008, 0x20034000 + + /* + * enable all implemented clocks in all three + * clock control registers + */ + write32 0x53f8000c, 0x1fffffff + write32 0x53f80010, 0xffffffff + write32 0x53f80014, 0xfdfff +.endm + +.macro init_ddrtype + /* + * ddr_type is 3.3v SDRAM + */ + write32 0x43fac454, 0x800 +.endm + +/* + * sdram controller init + */ +.macro init_sdram_bank bankaddr, ctl, cfg + ldr r0, =0xb8001000 + ldr r2, =\bankaddr + /* + * reset SDRAM controller + * then wait for initialization to complete + */ + ldr r1, =(1 << 1) + str r1, [r0, #0x10] +1: ldr r3, [r0, #0x10] + tst r3, #(1 << 31) + beq 1b + + ldr r1, =0x95728 + str r1, [r0, #\cfg] /* config */ + + ldr r1, =0x92116480 /* control | precharge */ + str r1, [r0, #\ctl] /* write command to controller */ + str r1, [r2, #0x400] /* command encoded in address */ + + ldr r1, =0xa2116480 /* auto refresh */ + str r1, [r0, #\ctl] + ldrb r3, [r2] /* read dram twice to auto refresh */ + ldrb r3, [r2] + + ldr r1, =0xb2116480 /* control | load mode */ + str r1, [r0, #\ctl] /* write command to controller */ + strb r1, [r2, #0x33] /* command encoded in address */ + + ldr r1, =0x82116480 /* control | normal (0)*/ + str r1, [r0, #\ctl] /* write command to controller */ +.endm + +.globl lowlevel_init +lowlevel_init: + init_aips + init_max + init_m3if + init_clocks + + init_sdram_bank 0x80000000, 0x0, 0x4 + + init_sdram_bank 0x90000000, 0x8, 0xc + mov pc, lr diff --git a/board/karo/tx25/tx25.c b/board/karo/tx25/tx25.c new file mode 100644 index 0000000..4d6a96d --- /dev/null +++ b/board/karo/tx25/tx25.c @@ -0,0 +1,176 @@ +/* + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby jrigby@gmail.com + * + * Based on imx27lite.c: + * Copyright (C) 2008,2009 Eric Jarrige jorasse@users.sourceforge.net + * Copyright (C) 2009 Ilya Yanok yanok@emcraft.com + * And: + * RedBoot tx25_misc.c Copyright (C) 2009 Red Hat + * + * 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 <asm/io.h> +#include <asm/arch/imx-regs.h> +#include <asm/arch/imx25-pinmux.h> + +static void mdelay(int n) +{ + while (n-- > 0) + udelay(1000); +} + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_FEC_MXC +void tx25_fec_init(void) +{ + struct iomuxc_mux_ctl *muxctl; + struct iomuxc_pad_ctl *padctl; + u32 val; + u32 gpio_mux_mode = MX25_PIN_MUX_MODE(5); + struct gpio_regs *gpio4 = (struct gpio_regs *)IMX_GPIO4_BASE; + struct gpio_regs *gpio3 = (struct gpio_regs *)IMX_GPIO3_BASE; + u32 saved_rdata0_mode, saved_rdata1_mode, saved_rx_dv_mode; + + debug("tx25_fec_init\n"); + /* + * fec pin init is generic + */ + mx25_fec_init_pins(); + + /* + * Set up the FEC_RESET_B and FEC_ENABLE GPIO pins. + * + * FEC_RESET_B: gpio4[7] is ALT 5 mode of pin D13 + * FEC_ENABLE_B: gpio4[9] is ALT 5 mode of pin D11 + */ + muxctl = (struct iomuxc_mux_ctl *)IMX_IOPADMUX_BASE; + padctl = (struct iomuxc_pad_ctl *)IMX_IOPADCTL_BASE; + + writel(gpio_mux_mode, &muxctl->pad_d13); + writel(gpio_mux_mode, &muxctl->pad_d11); + + writel(0x0, &padctl->pad_d13); + writel(0x0, &padctl->pad_d11); + + /* drop PHY power and assert reset (low) */ + val = readl(&gpio4->dr) & ~((1 << 7) | (1 << 9)); + writel(val, &gpio4->dr); + val = readl(&gpio4->dir) | (1 << 7) | (1 << 9); + writel(val, &gpio4->dir); + + mdelay(5); + + debug("resetting phy\n"); + + /* turn on PHY power leaving reset asserted */ + val = readl(&gpio4->dr) | 1 << 9; + writel(val, &gpio4->dr); + + mdelay(10); + + /* + * Setup some strapping pins that are latched by the PHY + * as reset goes high. + * + * Set PHY mode to 111 + * mode0 comes from FEC_RDATA0 which is GPIO 3_10 in mux mode 5 + * mode1 comes from FEC_RDATA1 which is GPIO 3_11 in mux mode 5 + * mode2 is tied high so nothing to do + * + * Turn on RMII mode + * RMII mode is selected by FEC_RX_DV which is GPIO 3_12 in mux mode + */ + /* + * save three current mux modes and set each to gpio mode + */ + saved_rdata0_mode = readl(&muxctl->pad_fec_rdata0); + saved_rdata1_mode = readl(&muxctl->pad_fec_rdata1); + saved_rx_dv_mode = readl(&muxctl->pad_fec_rx_dv); + + writel(gpio_mux_mode, &muxctl->pad_fec_rdata0); + writel(gpio_mux_mode, &muxctl->pad_fec_rdata1); + writel(gpio_mux_mode, &muxctl->pad_fec_rx_dv); + + /* + * set each to 1 and make each an output + */ + val = readl(&gpio3->dr) | (1 << 10) | (1 << 11) | (1 << 12); + writel(val, &gpio3->dr); + val = readl(&gpio3->dir) | (1 << 10) | (1 << 11) | (1 << 12); + writel(val, &gpio3->dir); + + mdelay(22); /* this value came from RedBoot */ + + /* + * deassert PHY reset + */ + val = readl(&gpio4->dr) | 1 << 7; + writel(val, &gpio4->dr); + writel(val, &gpio4->dr); + + mdelay(5); + + /* + * set FEC pins back + */ + writel(saved_rdata0_mode, &muxctl->pad_fec_rdata0); + writel(saved_rdata1_mode, &muxctl->pad_fec_rdata1); + writel(saved_rx_dv_mode, &muxctl->pad_fec_rx_dv); +} +#else +#define tx25_fec_init() +#endif + +int board_init() +{ +#ifdef CONFIG_MXC_UART + extern void mx25_uart_init_pins(void); + + mx25_uart_init_pins(); +#endif + return 0; +} + +int board_late_init(void) +{ + tx25_fec_init(); + return 0; +} + +int dram_init (void) +{ + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = get_ram_size((volatile void *)PHYS_SDRAM_1, + PHYS_SDRAM_1_SIZE); +#if CONFIG_NR_DRAM_BANKS > 1 + gd->bd->bi_dram[1].start = PHYS_SDRAM_2; + gd->bd->bi_dram[1].size = get_ram_size((volatile void *)PHYS_SDRAM_2, + PHYS_SDRAM_2_SIZE); +#endif + + return 0; +} + +int checkboard(void) +{ + printf("KARO TX25\n"); + return 0; +} diff --git a/include/configs/tx25.h b/include/configs/tx25.h new file mode 100644 index 0000000..c8188ca --- /dev/null +++ b/include/configs/tx25.h @@ -0,0 +1,179 @@ +/* + * (C) Copyright 2009 DENX Software Engineering + * Author: John Rigby jrigby@gmail.com + * + * 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 + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + + +/* + * KARO TX25 board - SoC Configuration + */ +#define CONFIG_ARM926EJS /* arm926ejs CPU core */ +#define CONFIG_MX25 +#define CONFIG_TX25 +#define CONFIG_MX25_CLK32 32000 /* OSC32K frequency */ +#define CONFIG_SYS_HZ 1000 + +#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* 256 kB for U-Boot */ + +/* NAND BOOT is the only boot method */ +#define CONFIG_NAND_U_BOOT + +#ifdef CONFIG_NAND_SPL +/* Start copying real U-boot from the second page */ +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x800 +#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x30000 +/* Load U-Boot to this address */ +#define CONFIG_SYS_NAND_U_BOOT_DST 0x81f00000 +#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST + +#define CONFIG_SYS_NAND_PAGE_SIZE 2048 +#define CONFIG_SYS_NAND_SPARE_SIZE 64 +#define CONFIG_SYS_NAND_BLOCK_SIZE (128 * 1024) +#define CONFIG_SYS_NAND_PAGE_COUNT 64 +#define CONFIG_SYS_NAND_SIZE (128 * 1024 * 1024) +#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0 +#else +#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_SKIP_RELOCATE_UBOOT +#endif + +#define CONFIG_DISPLAY_CPUINFO + +#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS 1 +#define CONFIG_INITRD_TAG 1 + +/* + * Memory Info + */ +/* malloc() len */ +#define CONFIG_SYS_MALLOC_LEN (1 << 20) /* 1 MiB */ +/* reserved for initial data */ +#define CONFIG_SYS_GBL_DATA_SIZE 128 +/* + * Board has 2 32MB banks of DRAM but there is a bug when using + * both so only the first is configured + */ +#define CONFIG_NR_DRAM_BANKS 1 + +#define PHYS_SDRAM_1 0x80000000 +#define PHYS_SDRAM_1_SIZE 0x02000000 +#if (CONFIG_NR_DRAM_BANKS == 2) +#define PHYS_SDRAM_2 0x90000000 +#define PHYS_SDRAM_2_SIZE 0x02000000 +#endif +/* 8MB DRAM test */ +#define CONFIG_SYS_MEMTEST_START PHYS_SDRAM_1 +#define CONFIG_SYS_MEMTEST_END (PHYS_SDRAM_1+0x0800000) +#define CONFIG_STACKSIZE (256 * 1024) /* regular stack */ + +/* + * Serial Info + */ +#define CONFIG_MXC_UART 1 +#define CONFIG_SYS_MX25_UART1 1 +#define CONFIG_CONS_INDEX 1 /* use UART0 for console */ +#define CONFIG_BAUDRATE 115200 /* Default baud rate */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } + +/* + * Flash & Environment + */ +/* No NOR flash present */ +#define CONFIG_SYS_NO_FLASH 1 +#define CONFIG_ENV_IS_IN_NAND +#define CONFIG_ENV_OFFSET CONFIG_SYS_MONITOR_LEN +#define CONFIG_ENV_SIZE (128 * 1024) /* 128 kB NAND block size */ +#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE) + +/* NAND */ +#define CONFIG_NAND_MXC +#define CONFIG_NAND_MXC_V1_1 +#define CONFIG_MXC_NAND_REGS_BASE (0xBB000000) +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE (0xBB000000) +#define CONFIG_JFFS2_NAND +#define CONFIG_MXC_NAND_HWECC +#define CONFIG_SYS_NAND_LARGEPAGE + +#define CONFIG_SYS_64BIT_VSPRINTF + +/* U-Boot general configuration */ +#define CONFIG_SYS_PROMPT "=> " /* Monitor Command Prompt */ +#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */ +/* Print buffer sz */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + 16) +#define CONFIG_SYS_MAXARGS 32 /* max number of command args */ +/* Boot Argument Buffer Size */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE +#define CONFIG_CMDLINE_EDITING +#define CONFIG_SYS_LONGHELP + +/* U-Boot commands */ +#include <config_cmd_default.h> +#define CONFIG_CMD_NAND + +/* + * Ethernet + */ +#define CONFIG_FEC_MXC +#define CONFIG_FEC_MXC_PHYADDR 0x1f +#define CONFIG_MII +#define CONFIG_CMD_NET +#define CONFIG_NET_MULTI +#define BOARD_LATE_INIT +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_BOOTDELAY 5 + +#define CONFIG_LOADADDR 0x81000000 /* loadaddr env var */ +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR + +#define xstr(s) str(s) +#define str(s) #s + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "netdev=eth0\0" \ + "nfsargs=setenv bootargs root=/dev/nfs rw " \ + "nfsroot=${serverip}:${rootpath}\0" \ + "ramargs=setenv bootargs root=/dev/ram rw\0" \ + "addip=setenv bootargs ${bootargs} " \ + "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ + ":${hostname}:${netdev}:off panic=1\0" \ + "addtty=setenv bootargs ${bootargs}" \ + " console=ttymxc0,${baudrate}\0" \ + "addmtd=setenv bootargs ${bootargs} ${mtdparts}\0" \ + "addmisc=setenv bootargs ${bootargs}\0" \ + "u-boot=tx25/u-boot.bin\0" \ + "kernel_addr_r=" xstr(CONFIG_LOADADDR) "\0" \ + "hostname=tx25\0" \ + "bootfile=tx25/uImage\0" \ + "rootpath=/opt/eldk/arm\0" \ + "net_nfs=tftp ${kernel_addr_r} ${bootfile};" \ + "run nfsargs addip addtty addmtd addmisc;" \ + "bootm\0" \ + "bootcmd=run net_nfs\0" \ + "load=tftp ${loadaddr} ${u-boot}\0" \ + "update=nand erase 0 40000;nand write ${loadaddr} 0 40000\0" \ + "upd=run load update\0" \ + +#endif /* __CONFIG_H */ diff --git a/nand_spl/board/karo/tx25/Makefile b/nand_spl/board/karo/tx25/Makefile new file mode 100644 index 0000000..ae71f66 --- /dev/null +++ b/nand_spl/board/karo/tx25/Makefile @@ -0,0 +1,78 @@ +# +# (C) Copyright 2009 DENX Software Engineering +# +# See file CREDITS for list of people who contributed to this +# project. +# +# 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 Foundatio; 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 +# +CONFIG_NAND_SPL = y + +include $(TOPDIR)/config.mk +include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk + +LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds +LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) +AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL +CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL + +SOBJS = start.o lowlevel_init.o +COBJS = nand_boot_fsl_nfc.o + +SRCS := $(SRCTREE)/nand_spl/nand_boot_fsl_nfc.c +SRCS += $(SRCTREE)/cpu/arm926ejs/start.S +SRCS += $(SRCTREE)/board/karo/tx25/lowlevel_init.S +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +__OBJS := $(SOBJS) $(COBJS) +LNDIR := $(OBJTREE)/nand_spl/board/$(BOARDDIR) + +nandobj := $(OBJTREE)/nand_spl/ + +ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin + +all: $(obj).depend $(ALL) + +$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@ + +$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ + +$(nandobj)u-boot-spl: $(OBJS) $(nandobj)u-boot.lds + cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \ + -Map $(nandobj)u-boot-spl.map \ + -o $@ + +$(nandobj)u-boot.lds: $(LDSCRIPT) + $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@ + +######################################################################### + +$(obj)%.o: $(SRCTREE)/cpu/arm926ejs/%.S + $(CC) $(AFLAGS) -c -o $@ $< + +$(obj)%.o: $(SRCTREE)/board/karo/tx25/%.S + $(CC) $(AFLAGS) -c -o $@ $< + +$(obj)%.o: $(SRCTREE)/nand_spl/%.c + $(CC) $(CFLAGS) -c -o $@ $< + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/nand_spl/board/karo/tx25/config.mk b/nand_spl/board/karo/tx25/config.mk new file mode 100644 index 0000000..68afbf1 --- /dev/null +++ b/nand_spl/board/karo/tx25/config.mk @@ -0,0 +1 @@ +PAD_TO := 2048 diff --git a/nand_spl/board/karo/tx25/u-boot.lds b/nand_spl/board/karo/tx25/u-boot.lds new file mode 100644 index 0000000..423bed3 --- /dev/null +++ b/nand_spl/board/karo/tx25/u-boot.lds @@ -0,0 +1,58 @@ +/* + * (C) Copyright 2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + start.o (.text) + lowlevel_init.o (.text) + nand_boot_fsl_nfc.o (.text) + *(.text) + . = 2K; + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +}

Terry,

I don't see a mxc_fec driver in the u-boot repository, so I don't know what you are referring too. There is a fec_mxc driver which this patch modifies to add mx25:

$ git ls-files | grep fec cpu/mpc8220/fec.c cpu/mpc8220/fec.h cpu/mpc8220/fec_dma_tasks.S cpu/mpc8xx/fec.c cpu/mpc8xx/fec.h drivers/net/fec_mxc.c drivers/net/fec_mxc.h drivers/net/fsl_mcdmafec.c drivers/net/mcffec.c drivers/net/mpc512x_fec.c drivers/net/mpc512x_fec.h drivers/net/mpc5xxx_fec.c drivers/net/mpc5xxx_fec.h include/asm-m68k/fec.h include/asm-m68k/fsl_mcdmafec.h

Perhaps you are looking at a private Freescale repo?

John

2010/1/27 Lv Terry-R65388 r65388@freescale.com:

Hi John,

   Why don't you use mxc_fec?

   Actually, we use mxc_fec in mx25 u-boot.

   Thanks~~

Yours Terry

-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of John Rigby Sent: 2010年1月26日 14:13 To: u-boot@lists.denx.de Cc: John Rigby; Ben Warren Subject: [U-Boot] [PATCH V3 7/8] fec_mxc: add MX25 support

Use RMII for MX25 Add code to init gasket that enables RMII

Signed-off-by: John Rigby jcrigby@gmail.com CC: Ben Warren biggerbadderben@gmail.com

---

drivers/net/fec_mxc.c | 31 ++++++++++++++++++++++++++++++- drivers/net/fec_mxc.h | 32 ++++++++++++++++++++++++++++++-- include/asm-arm/arch-mx25/clock.h | 1 + 3 files changed, 61 insertions(+), 3 deletions(-)

diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index b5619eb..f109485 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -347,6 +347,34 @@ static int fec_open(struct eth_device *edev) */ writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); +#ifdef CONFIG_MX25

•   udelay(100);
  

•   /*
  

•    * setup the MII gasket for RMII mode
  

•    */
  

•   /* disable the gasket */
  

•   writew(0, &fec->eth->miigsk_enr);
  

•   /* wait for the gasket to be disabled */
  

•   while (readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY)
  

•           udelay(2);
  

•   /* configure gasket for RMII, 50 MHz, no loopback, and no echo */
  

•   writew(MIIGSK_CFGR_IF_MODE_RMII, &fec->eth->miigsk_cfgr);
  

•   /* re-enable the gasket */
  

•   writew(MIIGSK_ENR_EN, &fec->eth->miigsk_enr);
  

•   /* wait until MII gasket is ready */
  

•   int max_loops = 10;
  

•   while ((readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY) == 0) {
  

•           if (--max_loops <= 0) {
  

•                   printf("WAIT for MII Gasket ready timed out\n");
  

•                   break;
  

•           }
  

•   }
  

+#endif

   miiphy_wait_aneg(edev);
   miiphy_speed(edev->name, CONFIG_FEC_MXC_PHYADDR); @@ -498,7 +526,8 @@ static void fec_halt(struct eth_device *dev)
    * Disable the Ethernet Controller
    * Note: this will also reset the BD index counter!
    */

•   writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl);
  

•   writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN,
  

•                   &fec->eth->ecntrl);
   fec->rbd_index = 0;
   fec->tbd_index = 0;
   debug("eth_halt: done\n");
  

diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h index 6cb1bfc..5d0d69d 100644 --- a/drivers/net/fec_mxc.h +++ b/drivers/net/fec_mxc.h @@ -145,9 +145,17 @@ struct ethernet_regs { uint32_t r_fdxfc; /* MBAR_ETH + 0x2DC */ uint32_t ieee_r_octets_ok; /* MBAR_ETH + 0x2E0 */

•   uint32_t res14[6];              /* MBAR_ETH + 0x2E4-2FC */
  

•   uint32_t res14[7];              /* MBAR_ETH + 0x2E4-2FC */
  

+#ifdef CONFIG_MX25

•   uint16_t miigsk_cfgr;           /* MBAR_ETH + 0x300 */
  

•   uint16_t res15[3];              /* MBAR_ETH + 0x302-306 */
  

•   uint16_t miigsk_enr;            /* MBAR_ETH + 0x308 */
  

•   uint16_t res16[3];              /* MBAR_ETH + 0x30a-30e */
  

•   uint32_t res17[60];             /* MBAR_ETH + 0x300-3FF */
  

+#else uint32_t res15[64]; /* MBAR_ETH + 0x300-3FF */ +#endif };

#define FEC_IEVENT_HBERR 0x80000000 @@ -196,6 +204,26 @@ struct ethernet_regs { #define FEC_ECNTRL_RESET 0x00000001 /* reset the FEC */ #define FEC_ECNTRL_ETHER_EN 0x00000002 /* enable the FEC */

+#ifdef CONFIG_MX25 +/* defines for MIIGSK */ +/* RMII frequency control: 0=50MHz, 1=5MHz */ +#define MIIGSK_CFGR_FRCONT (1 << 6) +/* loopback mode */ +#define MIIGSK_CFGR_LBMODE (1 << 4) +/* echo mode */ +#define MIIGSK_CFGR_EMODE (1 << 3) +/* MII gasket mode field */ +#define MIIGSK_CFGR_IF_MODE_MASK (3 << 0) +/* MMI/7-Wire mode */ +#define MIIGSK_CFGR_IF_MODE_MII (0 << 0) +/* RMII mode */ +#define MIIGSK_CFGR_IF_MODE_RMII (1 << 0) +/* reflects MIIGSK Enable bit (RO) */ +#define MIIGSK_ENR_READY (1 << 2) +/* enable MIGSK (set by default) */ +#define MIIGSK_ENR_EN (1 << 1) +#endif

/**

• @brief Descriptor buffer alignment

diff --git a/include/asm-arm/arch-mx25/clock.h b/include/asm-arm/arch-mx25/clock.h index b0752e7..c59f588 100644 --- a/include/asm-arm/arch-mx25/clock.h +++ b/include/asm-arm/arch-mx25/clock.h @@ -30,6 +30,7 @@ ulong imx_get_perclk(int clk); ulong imx_get_ahbclk(void);

#define imx_get_uartclk() imx_get_perclk(15) +#define imx_get_fecclk() (imx_get_ahbclk()/2)

#endif /* __ASM_ARCH_CLOCK_H */

1.6.4.2.236.gf324c

---

U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot

Hi John,

I think it is better that you can add a new config, e.g. CONFIG_MIIGSK for MII gasket. Then if other i.MX platforms uses MIIGSK, we can use the config for it.

Thanks~~

Yours Terry

-----Original Message----- From: u-boot-bounces@lists.denx.de [mailto:u-boot-bounces@lists.denx.de] On Behalf Of John Rigby Sent: 2010年1月26日 14:13 To: u-boot@lists.denx.de Cc: John Rigby; Ben Warren Subject: [U-Boot] [PATCH V3 7/8] fec_mxc: add MX25 support

Use RMII for MX25 Add code to init gasket that enables RMII

Signed-off-by: John Rigby jcrigby@gmail.com CC: Ben Warren biggerbadderben@gmail.com --- drivers/net/fec_mxc.c | 31 ++++++++++++++++++++++++++++++- drivers/net/fec_mxc.h | 32 ++++++++++++++++++++++++++++++-- include/asm-arm/arch-mx25/clock.h | 1 + 3 files changed, 61 insertions(+), 3 deletions(-)

diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index b5619eb..f109485 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -347,6 +347,34 @@ static int fec_open(struct eth_device *edev) */ writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); +#ifdef CONFIG_MX25 + udelay(100); + /* + * setup the MII gasket for RMII mode + */ + + /* disable the gasket */ + writew(0, &fec->eth->miigsk_enr); + + /* wait for the gasket to be disabled */ + while (readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY) + udelay(2); + + /* configure gasket for RMII, 50 MHz, no loopback, and no echo */ + writew(MIIGSK_CFGR_IF_MODE_RMII, &fec->eth->miigsk_cfgr); + + /* re-enable the gasket */ + writew(MIIGSK_ENR_EN, &fec->eth->miigsk_enr); + + /* wait until MII gasket is ready */ + int max_loops = 10; + while ((readw(&fec->eth->miigsk_enr) & MIIGSK_ENR_READY) == 0) { + if (--max_loops <= 0) { + printf("WAIT for MII Gasket ready timed out\n"); + break; + } + } +#endif

miiphy_wait_aneg(edev); miiphy_speed(edev->name, CONFIG_FEC_MXC_PHYADDR); @@ -498,7 +526,8 @@ static void fec_halt(struct eth_device *dev) * Disable the Ethernet Controller * Note: this will also reset the BD index counter! */ - writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); + writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, + &fec->eth->ecntrl); fec->rbd_index = 0; fec->tbd_index = 0; debug("eth_halt: done\n"); diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h index 6cb1bfc..5d0d69d 100644 --- a/drivers/net/fec_mxc.h +++ b/drivers/net/fec_mxc.h @@ -145,9 +145,17 @@ struct ethernet_regs { uint32_t r_fdxfc; /* MBAR_ETH + 0x2DC */ uint32_t ieee_r_octets_ok; /* MBAR_ETH + 0x2E0 */

- uint32_t res14[6]; /* MBAR_ETH + 0x2E4-2FC */ - + uint32_t res14[7]; /* MBAR_ETH + 0x2E4-2FC */ + +#ifdef CONFIG_MX25 + uint16_t miigsk_cfgr; /* MBAR_ETH + 0x300 */ + uint16_t res15[3]; /* MBAR_ETH + 0x302-306 */ + uint16_t miigsk_enr; /* MBAR_ETH + 0x308 */ + uint16_t res16[3]; /* MBAR_ETH + 0x30a-30e */ + uint32_t res17[60]; /* MBAR_ETH + 0x300-3FF */ +#else uint32_t res15[64]; /* MBAR_ETH + 0x300-3FF */ +#endif };

#define FEC_IEVENT_HBERR 0x80000000 @@ -196,6 +204,26 @@ struct ethernet_regs { #define FEC_ECNTRL_RESET 0x00000001 /* reset the FEC */ #define FEC_ECNTRL_ETHER_EN 0x00000002 /* enable the FEC */

+#ifdef CONFIG_MX25 +/* defines for MIIGSK */ +/* RMII frequency control: 0=50MHz, 1=5MHz */ +#define MIIGSK_CFGR_FRCONT (1 << 6) +/* loopback mode */ +#define MIIGSK_CFGR_LBMODE (1 << 4) +/* echo mode */ +#define MIIGSK_CFGR_EMODE (1 << 3) +/* MII gasket mode field */ +#define MIIGSK_CFGR_IF_MODE_MASK (3 << 0) +/* MMI/7-Wire mode */ +#define MIIGSK_CFGR_IF_MODE_MII (0 << 0) +/* RMII mode */ +#define MIIGSK_CFGR_IF_MODE_RMII (1 << 0) +/* reflects MIIGSK Enable bit (RO) */ +#define MIIGSK_ENR_READY (1 << 2) +/* enable MIGSK (set by default) */ +#define MIIGSK_ENR_EN (1 << 1) +#endif + /** * @brief Descriptor buffer alignment * diff --git a/include/asm-arm/arch-mx25/clock.h b/include/asm-arm/arch-mx25/clock.h index b0752e7..c59f588 100644 --- a/include/asm-arm/arch-mx25/clock.h +++ b/include/asm-arm/arch-mx25/clock.h @@ -30,6 +30,7 @@ ulong imx_get_perclk(int clk); ulong imx_get_ahbclk(void);

#define imx_get_uartclk() imx_get_perclk(15) +#define imx_get_fecclk() (imx_get_ahbclk()/2)

#endif /* __ASM_ARCH_CLOCK_H */ -- 1.6.4.2.236.gf324c

_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot

Tom,

I can't apply this independently of the other patches in this set. Please do so.

John Rigby wrote:

general cleanup move clock init to cpu_eth_init in cpu/arm926ejs/mx27/generic.c make MX27 specific phy init conditional on CONFIG_MX27 replace call to imx_get_ahbclk with one to imx_get_fecclk and define imx_get_fecclk in include/asm-arm/arch-mx27/clock.h

Signed-off-by: John Rigby jcrigby@gmail.com CC: Fred Fan fanyefeng@gmail.com CC: Tom Tom.Rix@windriver.com

Acked-by: Ben Warren biggerbadderben@gmail.com

---

cpu/arm926ejs/mx27/generic.c | 5 +++++ drivers/net/fec_mxc.c | 28 +++++++++++++--------------- include/asm-arm/arch-mx27/clock.h | 1 + 3 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/cpu/arm926ejs/mx27/generic.c b/cpu/arm926ejs/mx27/generic.c index da05c55..30cf544 100644 --- a/cpu/arm926ejs/mx27/generic.c +++ b/cpu/arm926ejs/mx27/generic.c @@ -166,6 +166,11 @@ int print_cpuinfo (void) int cpu_eth_init(bd_t *bis) { #if defined(CONFIG_FEC_MXC)

• struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
• /* enable FEC clock */
• writel(readl(&pll->pccr1) | PCCR1_HCLK_FEC, &pll->pccr1);
• writel(readl(&pll->pccr0) | PCCR0_FEC_EN, &pll->pccr0); return fecmxc_initialize(bis);

#else return 0; diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 19116f2..b5619eb 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -151,7 +151,9 @@ static int miiphy_restart_aneg(struct eth_device *dev) * Wake up from sleep if necessary * Reset PHY, then delay 300ns */ +#ifdef CONFIG_MX27 miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, PHY_MIPGSR, 0x00FF); +#endif miiphy_write(dev->name, CONFIG_FEC_MXC_PHYADDR, PHY_BMCR, PHY_BMCR_RESET); udelay(1000); @@ -343,7 +345,8 @@ static int fec_open(struct eth_device *edev) /* * Enable FEC-Lite controller */

• writel(FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl);

• writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN,

• &fec->eth->ecntrl);
  
  

  miiphy_wait_aneg(edev); miiphy_speed(edev->name, CONFIG_FEC_MXC_PHYADDR);

@@ -415,10 +418,10 @@ static int fec_init(struct eth_device *dev, bd_t* bd) * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock * and do not drop the Preamble. */

• writel((((imx_get_ahbclk() / 1000000) + 2) / 5) << 1,
  

• writel((((imx_get_fecclk() / 1000000) + 2) / 5) << 1,
  	&fec->eth->mii_speed);
  

  debug("fec_init: mii_speed %#lx\n",

• 		(((imx_get_ahbclk() / 1000000) + 2) / 5) << 1);
  

• 		(((imx_get_fecclk() / 1000000) + 2) / 5) << 1);
  

  } /*
  • Set Opcode/Pause Duration Register

@@ -475,7 +478,7 @@ static void fec_halt(struct eth_device *dev) /* * issue graceful stop command to the FEC transmitter if necessary */

• writel(FEC_ECNTRL_RESET | readl(&fec->eth->x_cntrl),

• writel(FEC_TCNTRL_GTS | readl(&fec->eth->x_cntrl), &fec->eth->x_cntrl);

  debug("eth_halt: wait for stop regs\n");

@@ -483,7 +486,7 @@ static void fec_halt(struct eth_device *dev) * wait for graceful stop to register */ while ((counter--) && (!(readl(&fec->eth->ievent) & FEC_IEVENT_GRA)))

• ;	/* FIXME ensure time */
  

• udelay(1);
  
  

  /*

  • Disable SmartDMA tasks

@@ -495,7 +498,7 @@ static void fec_halt(struct eth_device *dev) * Disable the Ethernet Controller * Note: this will also reset the BD index counter! */

• writel(0, &fec->eth->ecntrl);

• writel(readl(&fec->eth->ecntrl) & ~FEC_ECNTRL_ETHER_EN, &fec->eth->ecntrl); fec->rbd_index = 0; fec->tbd_index = 0; debug("eth_halt: done\n");

@@ -554,7 +557,7 @@ static int fec_send(struct eth_device *dev, volatile void* packet, int length) * wait until frame is sent . */ while (readw(&fec->tbd_base[fec->tbd_index].status) & FEC_TBD_READY) {

• /* FIXME: Timeout */
  

• udelay(1);
  

  } debug("fec_send: status 0x%x index %d\n", readw(&fec->tbd_base[fec->tbd_index].status),

@@ -651,7 +654,6 @@ static int fec_recv(struct eth_device *dev)

static int fec_probe(bd_t *bd) {

• struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE; struct eth_device *edev; struct fec_priv *fec = &gfec; unsigned char ethaddr_str[20];

@@ -659,10 +661,6 @@ static int fec_probe(bd_t *bd) char *tmp = getenv("ethaddr"); char *end;

• /* enable FEC clock */
• writel(readl(&pll->pccr1) | PCCR1_HCLK_FEC, &pll->pccr1);
• writel(readl(&pll->pccr0) | PCCR0_FEC_EN, &pll->pccr0);
• /* create and fill edev struct */ edev = (struct eth_device *)malloc(sizeof(struct eth_device)); if (!edev) {

@@ -681,7 +679,7 @@ static int fec_probe(bd_t *bd) fec->xcv_type = MII100;

/* Reset chip. */

• writel(FEC_ECNTRL_RESET, &fec->eth->ecntrl);

• writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_RESET, &fec->eth->ecntrl); while (readl(&fec->eth->ecntrl) & 1) udelay(10);

@@ -706,10 +704,10 @@ static int fec_probe(bd_t *bd) * Set MII_SPEED = (1/(mii_speed * 2)) * System Clock * and do not drop the Preamble. */

• writel((((imx_get_ahbclk() / 1000000) + 2) / 5) << 1,

• writel((((imx_get_fecclk() / 1000000) + 2) / 5) << 1, &fec->eth->mii_speed); debug("fec_init: mii_speed %#lx\n",

• 	(((imx_get_ahbclk() / 1000000) + 2) / 5) << 1);
  

• 	(((imx_get_fecclk() / 1000000) + 2) / 5) << 1);
  
  

  sprintf(edev->name, "FEC_MXC");

diff --git a/include/asm-arm/arch-mx27/clock.h b/include/asm-arm/arch-mx27/clock.h index 472e8f2..7e9c7aa 100644 --- a/include/asm-arm/arch-mx27/clock.h +++ b/include/asm-arm/arch-mx27/clock.h @@ -37,5 +37,6 @@ ulong imx_get_perclk3(void); ulong imx_get_ahbclk(void);

#define imx_get_uartclk imx_get_perclk1 +#define imx_get_fecclk imx_get_ahbclk

#endif /* __ASM_ARCH_CLOCK_H */

regards, Ben