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-rw-r--r--drivers/dma/apbh_dma.c10
-rw-r--r--drivers/mmc/mxsmmc.c102
-rw-r--r--drivers/net/fec_mxc.c164
-rw-r--r--drivers/net/fec_mxc.h2
-rw-r--r--drivers/net/phy/phy.c128
-rw-r--r--drivers/spi/Makefile1
-rw-r--r--drivers/spi/mxs_spi.c7
-rw-r--r--drivers/spi/tegra_slink.c343
-rw-r--r--drivers/spi/tegra_spi.c45
-rw-r--r--drivers/video/tegra.c4
10 files changed, 629 insertions, 177 deletions
diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c
index 37a941cc5bb..0c1cd831e01 100644
--- a/drivers/dma/apbh_dma.c
+++ b/drivers/dma/apbh_dma.c
@@ -223,13 +223,19 @@ static int mxs_dma_reset(int channel)
struct mxs_apbh_regs *apbh_regs =
(struct mxs_apbh_regs *)MXS_APBH_BASE;
int ret;
+#if defined(CONFIG_MX23)
+ uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_ctrl0_set);
+ uint32_t offset = APBH_CTRL0_RESET_CHANNEL_OFFSET;
+#elif defined(CONFIG_MX28)
+ uint32_t setreg = (uint32_t)(&apbh_regs->hw_apbh_channel_ctrl_set);
+ uint32_t offset = APBH_CHANNEL_CTRL_RESET_CHANNEL_OFFSET;
+#endif
ret = mxs_dma_validate_chan(channel);
if (ret)
return ret;
- writel(1 << (channel + APBH_CHANNEL_CTRL_RESET_CHANNEL_OFFSET),
- &apbh_regs->hw_apbh_channel_ctrl_set);
+ writel(1 << (channel + offset), setreg);
return 0;
}
diff --git a/drivers/mmc/mxsmmc.c b/drivers/mmc/mxsmmc.c
index 024df592f22..a72f66cc7aa 100644
--- a/drivers/mmc/mxsmmc.c
+++ b/drivers/mmc/mxsmmc.c
@@ -47,16 +47,31 @@
struct mxsmmc_priv {
int id;
struct mxs_ssp_regs *regs;
- uint32_t clkseq_bypass;
- uint32_t *clkctrl_ssp;
uint32_t buswidth;
int (*mmc_is_wp)(int);
+ int (*mmc_cd)(int);
struct mxs_dma_desc *desc;
};
+#if defined(CONFIG_MX23)
+static const unsigned int mxsmmc_id_offset = 1;
+#elif defined(CONFIG_MX28)
+static const unsigned int mxsmmc_id_offset = 0;
+#endif
+
#define MXSMMC_MAX_TIMEOUT 10000
#define MXSMMC_SMALL_TRANSFER 512
+static int mxsmmc_cd(struct mxsmmc_priv *priv)
+{
+ struct mxs_ssp_regs *ssp_regs = priv->regs;
+
+ if (priv->mmc_cd)
+ return priv->mmc_cd(priv->id);
+
+ return !(readl(&ssp_regs->hw_ssp_status) & SSP_STATUS_CARD_DETECT);
+}
+
static int mxsmmc_send_cmd_pio(struct mxsmmc_priv *priv, struct mmc_data *data)
{
struct mxs_ssp_regs *ssp_regs = priv->regs;
@@ -122,7 +137,7 @@ static int mxsmmc_send_cmd_dma(struct mxsmmc_priv *priv, struct mmc_data *data)
priv->desc->cmd.data |= MXS_DMA_DESC_IRQ | MXS_DMA_DESC_DEC_SEM |
(data_count << MXS_DMA_DESC_BYTES_OFFSET);
- dmach = MXS_DMA_CHANNEL_AHB_APBH_SSP0 + priv->id;
+ dmach = MXS_DMA_CHANNEL_AHB_APBH_SSP0 + priv->id + mxsmmc_id_offset;
mxs_dma_desc_append(dmach, priv->desc);
if (mxs_dma_go(dmach)) {
bounce_buffer_stop(&bbstate);
@@ -168,7 +183,7 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
}
/* See if card is present */
- if (readl(&ssp_regs->hw_ssp_status) & SSP_STATUS_CARD_DETECT) {
+ if (!mxsmmc_cd(priv)) {
printf("MMC%d: No card detected!\n", mmc->block_dev.dev);
return NO_CARD_ERR;
}
@@ -213,14 +228,25 @@ mxsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
}
ctrl0 |= SSP_CTRL0_DATA_XFER;
+
+ reg = data->blocksize * data->blocks;
+#if defined(CONFIG_MX23)
+ ctrl0 |= reg & SSP_CTRL0_XFER_COUNT_MASK;
+
+ clrsetbits_le32(&ssp_regs->hw_ssp_cmd0,
+ SSP_CMD0_BLOCK_SIZE_MASK | SSP_CMD0_BLOCK_COUNT_MASK,
+ ((data->blocks - 1) << SSP_CMD0_BLOCK_COUNT_OFFSET) |
+ ((ffs(data->blocksize) - 1) <<
+ SSP_CMD0_BLOCK_SIZE_OFFSET));
+#elif defined(CONFIG_MX28)
+ writel(reg, &ssp_regs->hw_ssp_xfer_size);
+
reg = ((data->blocks - 1) <<
SSP_BLOCK_SIZE_BLOCK_COUNT_OFFSET) |
((ffs(data->blocksize) - 1) <<
SSP_BLOCK_SIZE_BLOCK_SIZE_OFFSET);
writel(reg, &ssp_regs->hw_ssp_block_size);
-
- reg = data->blocksize * data->blocks;
- writel(reg, &ssp_regs->hw_ssp_xfer_size);
+#endif
}
/* Kick off the command */
@@ -306,7 +332,7 @@ static void mxsmmc_set_ios(struct mmc *mmc)
/* Set the clock speed */
if (mmc->clock)
- mx28_set_ssp_busclock(priv->id, mmc->clock / 1000);
+ mxs_set_ssp_busclock(priv->id, mmc->clock / 1000);
switch (mmc->bus_width) {
case 1:
@@ -336,14 +362,20 @@ static int mxsmmc_init(struct mmc *mmc)
/* Reset SSP */
mxs_reset_block(&ssp_regs->hw_ssp_ctrl0_reg);
- /* 8 bits word length in MMC mode */
- clrsetbits_le32(&ssp_regs->hw_ssp_ctrl1,
- SSP_CTRL1_SSP_MODE_MASK | SSP_CTRL1_WORD_LENGTH_MASK |
- SSP_CTRL1_DMA_ENABLE,
- SSP_CTRL1_SSP_MODE_SD_MMC | SSP_CTRL1_WORD_LENGTH_EIGHT_BITS);
+ /* Reconfigure the SSP block for MMC operation */
+ writel(SSP_CTRL1_SSP_MODE_SD_MMC |
+ SSP_CTRL1_WORD_LENGTH_EIGHT_BITS |
+ SSP_CTRL1_DMA_ENABLE |
+ SSP_CTRL1_POLARITY |
+ SSP_CTRL1_RECV_TIMEOUT_IRQ_EN |
+ SSP_CTRL1_DATA_CRC_IRQ_EN |
+ SSP_CTRL1_DATA_TIMEOUT_IRQ_EN |
+ SSP_CTRL1_RESP_TIMEOUT_IRQ_EN |
+ SSP_CTRL1_RESP_ERR_IRQ_EN,
+ &ssp_regs->hw_ssp_ctrl1_set);
/* Set initial bit clock 400 KHz */
- mx28_set_ssp_busclock(priv->id, 400);
+ mxs_set_ssp_busclock(priv->id, 400);
/* Send initial 74 clock cycles (185 us @ 400 KHz)*/
writel(SSP_CMD0_CONT_CLKING_EN, &ssp_regs->hw_ssp_cmd0_set);
@@ -353,13 +385,21 @@ static int mxsmmc_init(struct mmc *mmc)
return 0;
}
-int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int))
+int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int))
{
- struct mxs_clkctrl_regs *clkctrl_regs =
- (struct mxs_clkctrl_regs *)MXS_CLKCTRL_BASE;
struct mmc *mmc = NULL;
struct mxsmmc_priv *priv = NULL;
int ret;
+#if defined(CONFIG_MX23)
+ const unsigned int mxsmmc_max_id = 2;
+ const unsigned int mxsmmc_clk_id = 0;
+#elif defined(CONFIG_MX28)
+ const unsigned int mxsmmc_max_id = 4;
+ const unsigned int mxsmmc_clk_id = id;
+#endif
+
+ if (id >= mxsmmc_max_id)
+ return -ENODEV;
mmc = malloc(sizeof(struct mmc));
if (!mmc)
@@ -378,34 +418,14 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int))
return -ENOMEM;
}
- ret = mxs_dma_init_channel(id);
+ ret = mxs_dma_init_channel(id + mxsmmc_id_offset);
if (ret)
return ret;
priv->mmc_is_wp = wp;
+ priv->mmc_cd = cd;
priv->id = id;
- switch (id) {
- case 0:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP0_BASE;
- priv->clkseq_bypass = CLKCTRL_CLKSEQ_BYPASS_SSP0;
- priv->clkctrl_ssp = &clkctrl_regs->hw_clkctrl_ssp0;
- break;
- case 1:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP1_BASE;
- priv->clkseq_bypass = CLKCTRL_CLKSEQ_BYPASS_SSP1;
- priv->clkctrl_ssp = &clkctrl_regs->hw_clkctrl_ssp1;
- break;
- case 2:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP2_BASE;
- priv->clkseq_bypass = CLKCTRL_CLKSEQ_BYPASS_SSP2;
- priv->clkctrl_ssp = &clkctrl_regs->hw_clkctrl_ssp2;
- break;
- case 3:
- priv->regs = (struct mxs_ssp_regs *)MXS_SSP3_BASE;
- priv->clkseq_bypass = CLKCTRL_CLKSEQ_BYPASS_SSP3;
- priv->clkctrl_ssp = &clkctrl_regs->hw_clkctrl_ssp3;
- break;
- }
+ priv->regs = mxs_ssp_regs_by_bus(id);
sprintf(mmc->name, "MXS MMC");
mmc->send_cmd = mxsmmc_send_cmd;
@@ -426,7 +446,7 @@ int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int))
* CLOCK_RATE could be any integer from 0 to 255.
*/
mmc->f_min = 400000;
- mmc->f_max = mxc_get_clock(MXC_SSP0_CLK + id) * 1000 / 2;
+ mmc->f_max = mxc_get_clock(MXC_SSP0_CLK + mxsmmc_clk_id) * 1000 / 2;
mmc->b_max = 0x20;
mmc_register(mmc);
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index 3e232c7cbc1..4dbcdca4a03 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -135,15 +135,15 @@ static int fec_mdio_read(struct ethernet_regs *eth, uint8_t phyAddr,
return val;
}
-static void fec_mii_setspeed(struct fec_priv *fec)
+static void fec_mii_setspeed(struct ethernet_regs *eth)
{
/*
* Set MII_SPEED = (1/(mii_speed * 2)) * System Clock
* and do not drop the Preamble.
*/
writel((((imx_get_fecclk() / 1000000) + 2) / 5) << 1,
- &fec->eth->mii_speed);
- debug("%s: mii_speed %08x\n", __func__, readl(&fec->eth->mii_speed));
+ &eth->mii_speed);
+ debug("%s: mii_speed %08x\n", __func__, readl(&eth->mii_speed));
}
static int fec_mdio_write(struct ethernet_regs *eth, uint8_t phyAddr,
@@ -392,21 +392,6 @@ static int fec_set_hwaddr(struct eth_device *dev)
return 0;
}
-static void fec_eth_phy_config(struct eth_device *dev)
-{
-#ifdef CONFIG_PHYLIB
- struct fec_priv *fec = (struct fec_priv *)dev->priv;
- struct phy_device *phydev;
-
- phydev = phy_connect(fec->bus, fec->phy_id, dev,
- PHY_INTERFACE_MODE_RGMII);
- if (phydev) {
- fec->phydev = phydev;
- phy_config(phydev);
- }
-#endif
-}
-
/*
* Do initial configuration of the FEC registers
*/
@@ -511,9 +496,7 @@ static int fec_open(struct eth_device *edev)
#endif
#ifdef CONFIG_PHYLIB
- if (!fec->phydev)
- fec_eth_phy_config(edev);
- if (fec->phydev) {
+ {
/* Start up the PHY */
int ret = phy_startup(fec->phydev);
@@ -523,8 +506,6 @@ static int fec_open(struct eth_device *edev)
return ret;
}
speed = fec->phydev->speed;
- } else {
- speed = _100BASET;
}
#else
miiphy_wait_aneg(edev);
@@ -611,7 +592,7 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
fec_reg_setup(fec);
if (fec->xcv_type != SEVENWIRE)
- fec_mii_setspeed(fec);
+ fec_mii_setspeed(fec->bus->priv);
/*
* Set Opcode/Pause Duration Register
@@ -915,11 +896,21 @@ static int fec_recv(struct eth_device *dev)
return len;
}
-static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
+static void fec_set_dev_name(char *dest, int dev_id)
+{
+ sprintf(dest, (dev_id == -1) ? "FEC" : "FEC%i", dev_id);
+}
+
+#ifdef CONFIG_PHYLIB
+int fec_probe(bd_t *bd, int dev_id, uint32_t base_addr,
+ struct mii_dev *bus, struct phy_device *phydev)
+#else
+static int fec_probe(bd_t *bd, int dev_id, uint32_t base_addr,
+ struct mii_dev *bus, int phy_id)
+#endif
{
struct eth_device *edev;
struct fec_priv *fec;
- struct mii_dev *bus;
unsigned char ethaddr[6];
uint32_t start;
int ret = 0;
@@ -966,53 +957,25 @@ static int fec_probe(bd_t *bd, int dev_id, int phy_id, uint32_t base_addr)
}
fec_reg_setup(fec);
- fec_mii_setspeed(fec);
-
- if (dev_id == -1) {
- sprintf(edev->name, "FEC");
- fec->dev_id = 0;
- } else {
- sprintf(edev->name, "FEC%i", dev_id);
- fec->dev_id = dev_id;
- }
- fec->phy_id = phy_id;
-
- bus = mdio_alloc();
- if (!bus) {
- printf("mdio_alloc failed\n");
- ret = -ENOMEM;
- goto err3;
- }
- bus->read = fec_phy_read;
- bus->write = fec_phy_write;
- sprintf(bus->name, edev->name);
-#ifdef CONFIG_MX28
- /*
- * The i.MX28 has two ethernet interfaces, but they are not equal.
- * Only the first one can access the MDIO bus.
- */
- bus->priv = (struct ethernet_regs *)MXS_ENET0_BASE;
+ fec_set_dev_name(edev->name, dev_id);
+ fec->dev_id = (dev_id == -1) ? 0 : dev_id;
+ fec->bus = bus;
+ fec_mii_setspeed(bus->priv);
+#ifdef CONFIG_PHYLIB
+ fec->phydev = phydev;
+ phy_connect_dev(phydev, edev);
+ /* Configure phy */
+ phy_config(phydev);
#else
- bus->priv = fec->eth;
+ fec->phy_id = phy_id;
#endif
- ret = mdio_register(bus);
- if (ret) {
- printf("mdio_register failed\n");
- free(bus);
- ret = -ENOMEM;
- goto err3;
- }
- fec->bus = bus;
eth_register(edev);
if (fec_get_hwaddr(edev, dev_id, ethaddr) == 0) {
debug("got MAC%d address from fuse: %pM\n", dev_id, ethaddr);
memcpy(edev->enetaddr, ethaddr, 6);
}
- /* Configure phy */
- fec_eth_phy_config(edev);
return ret;
-
err3:
free(fec);
err2:
@@ -1021,27 +984,80 @@ err1:
return ret;
}
-#ifndef CONFIG_FEC_MXC_MULTI
-int fecmxc_initialize(bd_t *bd)
+struct mii_dev *fec_get_miibus(uint32_t base_addr, int dev_id)
{
- int lout = 1;
+ struct ethernet_regs *eth = (struct ethernet_regs *)base_addr;
+ struct mii_dev *bus;
+ int ret;
- debug("eth_init: fec_probe(bd)\n");
- lout = fec_probe(bd, -1, CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
+ bus = mdio_alloc();
+ if (!bus) {
+ printf("mdio_alloc failed\n");
+ return NULL;
+ }
+ bus->read = fec_phy_read;
+ bus->write = fec_phy_write;
+ bus->priv = eth;
+ fec_set_dev_name(bus->name, dev_id);
- return lout;
+ ret = mdio_register(bus);
+ if (ret) {
+ printf("mdio_register failed\n");
+ free(bus);
+ return NULL;
+ }
+ fec_mii_setspeed(eth);
+ return bus;
}
-#endif
int fecmxc_initialize_multi(bd_t *bd, int dev_id, int phy_id, uint32_t addr)
{
- int lout = 1;
+ uint32_t base_mii;
+ struct mii_dev *bus = NULL;
+#ifdef CONFIG_PHYLIB
+ struct phy_device *phydev = NULL;
+#endif
+ int ret;
+#ifdef CONFIG_MX28
+ /*
+ * The i.MX28 has two ethernet interfaces, but they are not equal.
+ * Only the first one can access the MDIO bus.
+ */
+ base_mii = MXS_ENET0_BASE;
+#else
+ base_mii = addr;
+#endif
debug("eth_init: fec_probe(bd, %i, %i) @ %08x\n", dev_id, phy_id, addr);
- lout = fec_probe(bd, dev_id, phy_id, addr);
+ bus = fec_get_miibus(base_mii, dev_id);
+ if (!bus)
+ return -ENOMEM;
+#ifdef CONFIG_PHYLIB
+ phydev = phy_find_by_mask(bus, 1 << phy_id, PHY_INTERFACE_MODE_RGMII);
+ if (!phydev) {
+ free(bus);
+ return -ENOMEM;
+ }
+ ret = fec_probe(bd, dev_id, addr, bus, phydev);
+#else
+ ret = fec_probe(bd, dev_id, addr, bus, phy_id);
+#endif
+ if (ret) {
+#ifdef CONFIG_PHYLIB
+ free(phydev);
+#endif
+ free(bus);
+ }
+ return ret;
+}
- return lout;
+#ifdef CONFIG_FEC_MXC_PHYADDR
+int fecmxc_initialize(bd_t *bd)
+{
+ return fecmxc_initialize_multi(bd, -1, CONFIG_FEC_MXC_PHYADDR,
+ IMX_FEC_BASE);
}
+#endif
#ifndef CONFIG_PHYLIB
int fecmxc_register_mii_postcall(struct eth_device *dev, int (*cb)(int))
diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h
index 203285af9a1..b8f0da36cdc 100644
--- a/drivers/net/fec_mxc.h
+++ b/drivers/net/fec_mxc.h
@@ -271,11 +271,11 @@ struct fec_priv {
bd_t *bd;
uint8_t *tdb_ptr;
int dev_id;
- int phy_id;
struct mii_dev *bus;
#ifdef CONFIG_PHYLIB
struct phy_device *phydev;
#else
+ int phy_id;
int (*mii_postcall)(int);
#endif
};
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 1ffa791dceb..d0ed7666ed9 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -31,6 +31,7 @@
#include <miiphy.h>
#include <phy.h>
#include <errno.h>
+#include <linux/err.h>
/* Generic PHY support and helper functions */
@@ -574,6 +575,61 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
return 0;
}
+static struct phy_device *create_phy_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, int devad, phy_interface_t interface)
+{
+ u32 phy_id = 0xffffffff;
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ int r = get_phy_id(bus, addr, devad, &phy_id);
+ if (r < 0)
+ return ERR_PTR(r);
+ /* If the PHY ID is mostly f's, we didn't find anything */
+ if ((phy_id & 0x1fffffff) != 0x1fffffff)
+ return phy_device_create(bus, addr, phy_id, interface);
+ phy_mask &= ~(1 << addr);
+ }
+ return NULL;
+}
+
+static struct phy_device *search_for_existing_phy(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
+ /* If we have one, return the existing device, with new interface */
+ while (phy_mask) {
+ int addr = ffs(phy_mask) - 1;
+ if (bus->phymap[addr]) {
+ bus->phymap[addr]->interface = interface;
+ return bus->phymap[addr];
+ }
+ phy_mask &= ~(1 << addr);
+ }
+ return NULL;
+}
+
+static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus,
+ unsigned phy_mask, phy_interface_t interface)
+{
+ int i;
+ struct phy_device *phydev;
+
+ phydev = search_for_existing_phy(bus, phy_mask, interface);
+ if (phydev)
+ return phydev;
+ /* Try Standard (ie Clause 22) access */
+ /* Otherwise we have to try Clause 45 */
+ for (i = 0; i < 5; i++) {
+ phydev = create_phy_by_mask(bus, phy_mask,
+ i ? i : MDIO_DEVAD_NONE, interface);
+ if (IS_ERR(phydev))
+ return NULL;
+ if (phydev)
+ return phydev;
+ }
+ printf("Phy not found\n");
+ return phy_device_create(bus, ffs(phy_mask) - 1, 0xffffffff, interface);
+}
+
/**
* get_phy_device - reads the specified PHY device and returns its @phy_device struct
* @bus: the target MII bus
@@ -585,38 +641,7 @@ static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id)
static struct phy_device *get_phy_device(struct mii_dev *bus, int addr,
phy_interface_t interface)
{
- u32 phy_id = 0x1fffffff;
- int i;
- int r;
-
- /* If we have one, return the existing device, with new interface */
- if (bus->phymap[addr]) {
- bus->phymap[addr]->interface = interface;
-
- return bus->phymap[addr];
- }
-
- /* Try Standard (ie Clause 22) access */
- r = get_phy_id(bus, addr, MDIO_DEVAD_NONE, &phy_id);
- if (r)
- return NULL;
-
- /* If the PHY ID is mostly f's, we didn't find anything */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- return phy_device_create(bus, addr, phy_id, interface);
-
- /* Otherwise we have to try Clause 45 */
- for (i = 1; i < 5; i++) {
- r = get_phy_id(bus, addr, i, &phy_id);
- if (r)
- return NULL;
-
- /* If the phy_id is mostly Fs, there is no device there */
- if ((phy_id & 0x1fffffff) != 0x1fffffff)
- break;
- }
-
- return phy_device_create(bus, addr, phy_id, interface);
+ return get_phy_device_by_mask(bus, 1 << addr, interface);
}
int phy_reset(struct phy_device *phydev)
@@ -689,38 +714,41 @@ int miiphy_reset(const char *devname, unsigned char addr)
return phy_reset(phydev);
}
-struct phy_device *phy_connect(struct mii_dev *bus, int addr,
- struct eth_device *dev,
- phy_interface_t interface)
+struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
+ phy_interface_t interface)
{
- struct phy_device *phydev;
-
/* Reset the bus */
if (bus->reset)
bus->reset(bus);
/* Wait 15ms to make sure the PHY has come out of hard reset */
udelay(15000);
+ return get_phy_device_by_mask(bus, phy_mask, interface);
+}
- phydev = get_phy_device(bus, addr, interface);
-
- if (!phydev) {
- printf("Could not get PHY for %s:%d\n", bus->name, addr);
-
- return NULL;
- }
-
+void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev)
+{
/* Soft Reset the PHY */
phy_reset(phydev);
-
- if (phydev->dev)
+ if (phydev->dev) {
printf("%s:%d is connected to %s. Reconnecting to %s\n",
- bus->name, addr, phydev->dev->name, dev->name);
-
+ phydev->bus->name, phydev->addr,
+ phydev->dev->name, dev->name);
+ }
phydev->dev = dev;
-
debug("%s connected to %s\n", dev->name, phydev->drv->name);
+}
+
+struct phy_device *phy_connect(struct mii_dev *bus, int addr,
+ struct eth_device *dev, phy_interface_t interface)
+{
+ struct phy_device *phydev;
+ phydev = phy_find_by_mask(bus, 1 << addr, interface);
+ if (phydev)
+ phy_connect_dev(phydev, dev);
+ else
+ printf("Could not get PHY for %s: addr %d\n", bus->name, addr);
return phydev;
}
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index 824d357d948..83abcbda282 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -46,6 +46,7 @@ COBJS-$(CONFIG_SOFT_SPI) += soft_spi.o
COBJS-$(CONFIG_SH_SPI) += sh_spi.o
COBJS-$(CONFIG_FSL_ESPI) += fsl_espi.o
COBJS-$(CONFIG_TEGRA_SPI) += tegra_spi.o
+COBJS-$(CONFIG_TEGRA_SLINK) += tegra_slink.o
COBJS-$(CONFIG_XILINX_SPI) += xilinx_spi.o
COBJS := $(COBJS-y)
diff --git a/drivers/spi/mxs_spi.c b/drivers/spi/mxs_spi.c
index 42e4c9952ed..bb865b7f4c3 100644
--- a/drivers/spi/mxs_spi.c
+++ b/drivers/spi/mxs_spi.c
@@ -80,7 +80,6 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
unsigned int max_hz, unsigned int mode)
{
struct mxs_spi_slave *mxs_slave;
- uint32_t addr;
struct mxs_ssp_regs *ssp_regs;
int reg;
@@ -96,13 +95,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
if (mxs_dma_init_channel(bus))
goto err_init;
- addr = MXS_SSP0_BASE + (bus * MXS_SPI_PORT_OFFSET);
-
mxs_slave->slave.bus = bus;
mxs_slave->slave.cs = cs;
mxs_slave->max_khz = max_hz / 1000;
mxs_slave->mode = mode;
- mxs_slave->regs = (struct mxs_ssp_regs *)addr;
+ mxs_slave->regs = mxs_ssp_regs_by_bus(bus);
ssp_regs = mxs_slave->regs;
reg = readl(&ssp_regs->hw_ssp_ctrl0);
@@ -140,7 +137,7 @@ int spi_claim_bus(struct spi_slave *slave)
writel(0, &ssp_regs->hw_ssp_cmd0);
- mx28_set_ssp_busclock(slave->bus, mxs_slave->max_khz);
+ mxs_set_ssp_busclock(slave->bus, mxs_slave->max_khz);
return 0;
}
diff --git a/drivers/spi/tegra_slink.c b/drivers/spi/tegra_slink.c
new file mode 100644
index 00000000000..2c41fabe286
--- /dev/null
+++ b/drivers/spi/tegra_slink.c
@@ -0,0 +1,343 @@
+/*
+ * NVIDIA Tegra SPI-SLINK controller
+ *
+ * Copyright (c) 2010-2013 NVIDIA Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * 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 <malloc.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/arch/clock.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/tegra_slink.h>
+#include <spi.h>
+#include <fdtdec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct tegra_spi_ctrl {
+ struct slink_tegra *regs;
+ unsigned int freq;
+ unsigned int mode;
+ int periph_id;
+ int valid;
+};
+
+struct tegra_spi_slave {
+ struct spi_slave slave;
+ struct tegra_spi_ctrl *ctrl;
+};
+
+static struct tegra_spi_ctrl spi_ctrls[CONFIG_TEGRA_SLINK_CTRLS];
+
+static inline struct tegra_spi_slave *to_tegra_spi(struct spi_slave *slave)
+{
+ return container_of(slave, struct tegra_spi_slave, slave);
+}
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+ if (bus >= CONFIG_TEGRA_SLINK_CTRLS || cs > 3 || !spi_ctrls[bus].valid)
+ return 0;
+ else
+ return 1;
+}
+
+struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
+ unsigned int max_hz, unsigned int mode)
+{
+ struct tegra_spi_slave *spi;
+
+ debug("%s: bus: %u, cs: %u, max_hz: %u, mode: %u\n", __func__,
+ bus, cs, max_hz, mode);
+
+ if (!spi_cs_is_valid(bus, cs)) {
+ printf("SPI error: unsupported bus %d / chip select %d\n",
+ bus, cs);
+ return NULL;
+ }
+
+ if (max_hz > TEGRA_SPI_MAX_FREQ) {
+ printf("SPI error: unsupported frequency %d Hz. Max frequency"
+ " is %d Hz\n", max_hz, TEGRA_SPI_MAX_FREQ);
+ return NULL;
+ }
+
+ spi = malloc(sizeof(struct tegra_spi_slave));
+ if (!spi) {
+ printf("SPI error: malloc of SPI structure failed\n");
+ return NULL;
+ }
+ spi->slave.bus = bus;
+ spi->slave.cs = cs;
+ spi->ctrl = &spi_ctrls[bus];
+ if (!spi->ctrl) {
+ printf("SPI error: could not find controller for bus %d\n",
+ bus);
+ return NULL;
+ }
+
+ if (max_hz < spi->ctrl->freq) {
+ debug("%s: limiting frequency from %u to %u\n", __func__,
+ spi->ctrl->freq, max_hz);
+ spi->ctrl->freq = max_hz;
+ }
+ spi->ctrl->mode = mode;
+
+ return &spi->slave;
+}
+
+void spi_free_slave(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+
+ free(spi);
+}
+
+void spi_init(void)
+{
+ struct tegra_spi_ctrl *ctrl;
+ int i;
+#ifdef CONFIG_OF_CONTROL
+ int node = 0;
+ int count;
+ int node_list[CONFIG_TEGRA_SLINK_CTRLS];
+
+ count = fdtdec_find_aliases_for_id(gd->fdt_blob, "spi",
+ COMPAT_NVIDIA_TEGRA20_SLINK,
+ node_list,
+ CONFIG_TEGRA_SLINK_CTRLS);
+ for (i = 0; i < count; i++) {
+ ctrl = &spi_ctrls[i];
+ node = node_list[i];
+
+ ctrl->regs = (struct slink_tegra *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
+ if ((fdt_addr_t)ctrl->regs == FDT_ADDR_T_NONE) {
+ debug("%s: no slink register found\n", __func__);
+ continue;
+ }
+ ctrl->freq = fdtdec_get_int(gd->fdt_blob, node,
+ "spi-max-frequency", 0);
+ if (!ctrl->freq) {
+ debug("%s: no slink max frequency found\n", __func__);
+ continue;
+ }
+
+ ctrl->periph_id = clock_decode_periph_id(gd->fdt_blob, node);
+ if (ctrl->periph_id == PERIPH_ID_NONE) {
+ debug("%s: could not decode periph id\n", __func__);
+ continue;
+ }
+ ctrl->valid = 1;
+
+ debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
+ __func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
+ }
+#else
+ for (i = 0; i < CONFIG_TEGRA_SLINK_CTRLS; i++) {
+ ctrl = &spi_ctrls[i];
+ u32 base_regs[] = {
+ NV_PA_SLINK1_BASE,
+ NV_PA_SLINK2_BASE,
+ NV_PA_SLINK3_BASE,
+ NV_PA_SLINK4_BASE,
+ NV_PA_SLINK5_BASE,
+ NV_PA_SLINK6_BASE,
+ };
+ int periph_ids[] = {
+ PERIPH_ID_SBC1,
+ PERIPH_ID_SBC2,
+ PERIPH_ID_SBC3,
+ PERIPH_ID_SBC4,
+ PERIPH_ID_SBC5,
+ PERIPH_ID_SBC6,
+ };
+ ctrl->regs = (struct slink_tegra *)base_regs[i];
+ ctrl->freq = TEGRA_SPI_MAX_FREQ;
+ ctrl->periph_id = periph_ids[i];
+ ctrl->valid = 1;
+
+ debug("%s: found controller at %p, freq = %u, periph_id = %d\n",
+ __func__, ctrl->regs, ctrl->freq, ctrl->periph_id);
+ }
+#endif
+}
+
+int spi_claim_bus(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct slink_tegra *regs = spi->ctrl->regs;
+ u32 reg;
+
+ /* Change SPI clock to correct frequency, PLLP_OUT0 source */
+ clock_start_periph_pll(spi->ctrl->periph_id, CLOCK_ID_PERIPH,
+ spi->ctrl->freq);
+
+ /* Clear stale status here */
+ reg = SLINK_STAT_RDY | SLINK_STAT_RXF_FLUSH | SLINK_STAT_TXF_FLUSH | \
+ SLINK_STAT_RXF_UNR | SLINK_STAT_TXF_OVF;
+ writel(reg, &regs->status);
+ debug("%s: STATUS = %08x\n", __func__, readl(&regs->status));
+
+ /* Set master mode and sw controlled CS */
+ reg = readl(&regs->command);
+ reg |= SLINK_CMD_M_S | SLINK_CMD_CS_SOFT;
+ writel(reg, &regs->command);
+ debug("%s: COMMAND = %08x\n", __func__, readl(&regs->command));
+
+ return 0;
+}
+
+void spi_release_bus(struct spi_slave *slave)
+{
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct slink_tegra *regs = spi->ctrl->regs;
+
+ /* CS is negated on Tegra, so drive a 1 to get a 0 */
+ setbits_le32(&regs->command, SLINK_CMD_CS_VAL);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct slink_tegra *regs = spi->ctrl->regs;
+
+ /* CS is negated on Tegra, so drive a 0 to get a 1 */
+ clrbits_le32(&regs->command, SLINK_CMD_CS_VAL);
+}
+
+int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
+ const void *data_out, void *data_in, unsigned long flags)
+{
+ struct tegra_spi_slave *spi = to_tegra_spi(slave);
+ struct slink_tegra *regs = spi->ctrl->regs;
+ u32 reg, tmpdout, tmpdin = 0;
+ const u8 *dout = data_out;
+ u8 *din = data_in;
+ int num_bytes;
+ int ret;
+
+ debug("%s: slave %u:%u dout %p din %p bitlen %u\n",
+ __func__, slave->bus, slave->cs, dout, din, bitlen);
+ if (bitlen % 8)
+ return -1;
+ num_bytes = bitlen / 8;
+
+ ret = 0;
+
+ reg = readl(&regs->status);
+ writel(reg, &regs->status); /* Clear all SPI events via R/W */
+ debug("%s entry: STATUS = %08x\n", __func__, reg);
+
+ reg = readl(&regs->status2);
+ writel(reg, &regs->status2); /* Clear all STATUS2 events via R/W */
+ debug("%s entry: STATUS2 = %08x\n", __func__, reg);
+
+ debug("%s entry: COMMAND = %08x\n", __func__, readl(&regs->command));
+
+ clrsetbits_le32(&regs->command2, SLINK_CMD2_SS_EN_MASK,
+ SLINK_CMD2_TXEN | SLINK_CMD2_RXEN |
+ (slave->cs << SLINK_CMD2_SS_EN_SHIFT));
+ debug("%s entry: COMMAND2 = %08x\n", __func__, readl(&regs->command2));
+
+ if (flags & SPI_XFER_BEGIN)
+ spi_cs_activate(slave);
+
+ /* handle data in 32-bit chunks */
+ while (num_bytes > 0) {
+ int bytes;
+ int is_read = 0;
+ int tm, i;
+
+ tmpdout = 0;
+ bytes = (num_bytes > 4) ? 4 : num_bytes;
+
+ if (dout != NULL) {
+ for (i = 0; i < bytes; ++i)
+ tmpdout = (tmpdout << 8) | dout[i];
+ dout += bytes;
+ }
+
+ num_bytes -= bytes;
+
+ clrsetbits_le32(&regs->command, SLINK_CMD_BIT_LENGTH_MASK,
+ bytes * 8 - 1);
+ writel(tmpdout, &regs->tx_fifo);
+ setbits_le32(&regs->command, SLINK_CMD_GO);
+
+ /*
+ * Wait for SPI transmit FIFO to empty, or to time out.
+ * The RX FIFO status will be read and cleared last
+ */
+ for (tm = 0, is_read = 0; tm < SPI_TIMEOUT; ++tm) {
+ u32 status;
+
+ status = readl(&regs->status);
+
+ /* We can exit when we've had both RX and TX activity */
+ if (is_read && (status & SLINK_STAT_TXF_EMPTY))
+ break;
+
+ if ((status & (SLINK_STAT_BSY | SLINK_STAT_RDY)) !=
+ SLINK_STAT_RDY)
+ tm++;
+
+ else if (!(status & SLINK_STAT_RXF_EMPTY)) {
+ tmpdin = readl(&regs->rx_fifo);
+ is_read = 1;
+
+ /* swap bytes read in */
+ if (din != NULL) {
+ for (i = bytes - 1; i >= 0; --i) {
+ din[i] = tmpdin & 0xff;
+ tmpdin >>= 8;
+ }
+ din += bytes;
+ }
+ }
+ }
+
+ if (tm >= SPI_TIMEOUT)
+ ret = tm;
+
+ /* clear ACK RDY, etc. bits */
+ writel(readl(&regs->status), &regs->status);
+ }
+
+ if (flags & SPI_XFER_END)
+ spi_cs_deactivate(slave);
+
+ debug("%s: transfer ended. Value=%08x, status = %08x\n",
+ __func__, tmpdin, readl(&regs->status));
+
+ if (ret) {
+ printf("%s: timeout during SPI transfer, tm %d\n",
+ __func__, ret);
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/drivers/spi/tegra_spi.c b/drivers/spi/tegra_spi.c
index 9bb34e29381..ce19095af03 100644
--- a/drivers/spi/tegra_spi.c
+++ b/drivers/spi/tegra_spi.c
@@ -32,6 +32,9 @@
#include <asm/arch-tegra/clk_rst.h>
#include <asm/arch-tegra/tegra_spi.h>
#include <spi.h>
+#include <fdtdec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_SPI_CORRUPTS_UART)
#define corrupt_delay() udelay(CONFIG_SPI_CORRUPTS_UART_DLY);
@@ -44,6 +47,7 @@ struct tegra_spi_slave {
struct spi_tegra *regs;
unsigned int freq;
unsigned int mode;
+ int periph_id;
};
static inline struct tegra_spi_slave *to_tegra_spi(struct spi_slave *slave)
@@ -84,8 +88,45 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
}
spi->slave.bus = bus;
spi->slave.cs = cs;
- spi->freq = max_hz;
+#ifdef CONFIG_OF_CONTROL
+ int node = fdtdec_next_compatible(gd->fdt_blob, 0,
+ COMPAT_NVIDIA_TEGRA20_SFLASH);
+ if (node < 0) {
+ debug("%s: cannot locate sflash node\n", __func__);
+ return NULL;
+ }
+ if (!fdtdec_get_is_enabled(gd->fdt_blob, node)) {
+ debug("%s: sflash is disabled\n", __func__);
+ return NULL;
+ }
+ spi->regs = (struct spi_tegra *)fdtdec_get_addr(gd->fdt_blob,
+ node, "reg");
+ if ((fdt_addr_t)spi->regs == FDT_ADDR_T_NONE) {
+ debug("%s: no sflash register found\n", __func__);
+ return NULL;
+ }
+ spi->freq = fdtdec_get_int(gd->fdt_blob, node, "spi-max-frequency", 0);
+ if (!spi->freq) {
+ debug("%s: no sflash max frequency found\n", __func__);
+ return NULL;
+ }
+ spi->periph_id = clock_decode_periph_id(gd->fdt_blob, node);
+ if (spi->periph_id == PERIPH_ID_NONE) {
+ debug("%s: could not decode periph id\n", __func__);
+ return NULL;
+ }
+#else
spi->regs = (struct spi_tegra *)NV_PA_SPI_BASE;
+ spi->freq = TEGRA_SPI_MAX_FREQ;
+ spi->periph_id = PERIPH_ID_SPI1;
+#endif
+ if (max_hz < spi->freq) {
+ debug("%s: limiting frequency from %u to %u\n", __func__,
+ spi->freq, max_hz);
+ spi->freq = max_hz;
+ }
+ debug("%s: controller initialized at %p, freq = %u, periph_id = %d\n",
+ __func__, spi->regs, spi->freq, spi->periph_id);
spi->mode = mode;
return &spi->slave;
@@ -110,7 +151,7 @@ int spi_claim_bus(struct spi_slave *slave)
u32 reg;
/* Change SPI clock to correct frequency, PLLP_OUT0 source */
- clock_start_periph_pll(PERIPH_ID_SPI1, CLOCK_ID_PERIPH, spi->freq);
+ clock_start_periph_pll(spi->periph_id, CLOCK_ID_PERIPH, spi->freq);
/* Clear stale status here */
reg = SPI_STAT_RDY | SPI_STAT_RXF_FLUSH | SPI_STAT_TXF_FLUSH | \
diff --git a/drivers/video/tegra.c b/drivers/video/tegra.c
index 750a2834383..afcb00881e5 100644
--- a/drivers/video/tegra.c
+++ b/drivers/video/tegra.c
@@ -145,8 +145,8 @@ static void update_panel_size(struct fdt_disp_config *config)
void lcd_ctrl_init(void *lcdbase)
{
- int line_length, size;
int type = DCACHE_OFF;
+ int size;
assert(disp_config);
@@ -160,7 +160,7 @@ void lcd_ctrl_init(void *lcdbase)
&& disp_config->height <= LCD_MAX_HEIGHT
&& disp_config->log2_bpp <= LCD_MAX_LOG2_BPP)
update_panel_size(disp_config);
- size = lcd_get_size(&line_length);
+ size = lcd_get_size(&lcd_line_length);
/* Set up the LCD caching as requested */
if (config.cache_type & FDT_LCD_CACHE_WRITE_THROUGH)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 06:50:32 +0000