#include <common.h>
#include <dm.h>
+#include <log.h>
#include <malloc.h>
#include <spi.h>
#include <asm/io.h>
#include <asm/arch/soc.h>
-#ifdef CONFIG_KIRKWOOD
+#ifdef CONFIG_ARCH_KIRKWOOD
#include <asm/arch/mpp.h>
#endif
#include <asm/arch-mvebu/spi.h>
+struct mvebu_spi_dev {
+ bool is_errata_50mhz_ac;
+};
+
+struct mvebu_spi_platdata {
+ struct kwspi_registers *spireg;
+ bool is_errata_50mhz_ac;
+};
+
+struct mvebu_spi_priv {
+ struct kwspi_registers *spireg;
+};
+
static void _spi_cs_activate(struct kwspi_registers *reg)
{
setbits_le32(®->ctrl, KWSPI_CSN_ACT);
return 0;
}
-#ifndef CONFIG_DM_SPI
-
-static struct kwspi_registers *spireg =
- (struct kwspi_registers *)MVEBU_SPI_BASE;
-
-#ifdef CONFIG_KIRKWOOD
-static u32 cs_spi_mpp_back[2];
-#endif
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
-{
- struct spi_slave *slave;
- u32 data;
-#ifdef CONFIG_KIRKWOOD
- static const u32 kwspi_mpp_config[2][2] = {
- { MPP0_SPI_SCn, 0 }, /* if cs == 0 */
- { MPP7_SPI_SCn, 0 } /* if cs != 0 */
- };
-#endif
-
- if (!spi_cs_is_valid(bus, cs))
- return NULL;
-
- slave = spi_alloc_slave_base(bus, cs);
- if (!slave)
- return NULL;
-
- writel(KWSPI_SMEMRDY, &spireg->ctrl);
-
- /* calculate spi clock prescaller using max_hz */
- data = ((CONFIG_SYS_TCLK / 2) / max_hz) + 0x10;
- data = data < KWSPI_CLKPRESCL_MIN ? KWSPI_CLKPRESCL_MIN : data;
- data = data > KWSPI_CLKPRESCL_MASK ? KWSPI_CLKPRESCL_MASK : data;
-
- /* program spi clock prescaller using max_hz */
- writel(KWSPI_ADRLEN_3BYTE | data, &spireg->cfg);
- debug("data = 0x%08x\n", data);
-
- writel(KWSPI_SMEMRDIRQ, &spireg->irq_cause);
- writel(KWSPI_IRQMASK, &spireg->irq_mask);
-
-#ifdef CONFIG_KIRKWOOD
- /* program mpp registers to select SPI_CSn */
- kirkwood_mpp_conf(kwspi_mpp_config[cs ? 1 : 0], cs_spi_mpp_back);
-#endif
-
- return slave;
-}
-
-void spi_free_slave(struct spi_slave *slave)
-{
-#ifdef CONFIG_KIRKWOOD
- kirkwood_mpp_conf(cs_spi_mpp_back, NULL);
-#endif
- free(slave);
-}
-
-#if defined(CONFIG_SYS_KW_SPI_MPP)
-u32 spi_mpp_backup[4];
-#endif
-
-__attribute__((weak)) int board_spi_claim_bus(struct spi_slave *slave)
-{
- return 0;
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
-#if defined(CONFIG_SYS_KW_SPI_MPP)
- u32 config;
- u32 spi_mpp_config[4];
-
- config = CONFIG_SYS_KW_SPI_MPP;
-
- if (config & MOSI_MPP6)
- spi_mpp_config[0] = MPP6_SPI_MOSI;
- else
- spi_mpp_config[0] = MPP1_SPI_MOSI;
-
- if (config & SCK_MPP10)
- spi_mpp_config[1] = MPP10_SPI_SCK;
- else
- spi_mpp_config[1] = MPP2_SPI_SCK;
-
- if (config & MISO_MPP11)
- spi_mpp_config[2] = MPP11_SPI_MISO;
- else
- spi_mpp_config[2] = MPP3_SPI_MISO;
-
- spi_mpp_config[3] = 0;
- spi_mpp_backup[3] = 0;
-
- /* set new spi mpp and save current mpp config */
- kirkwood_mpp_conf(spi_mpp_config, spi_mpp_backup);
-#endif
-
- return board_spi_claim_bus(slave);
-}
-
-__attribute__((weak)) void board_spi_release_bus(struct spi_slave *slave)
-{
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
-#if defined(CONFIG_SYS_KW_SPI_MPP)
- kirkwood_mpp_conf(spi_mpp_backup, NULL);
-#endif
-
- board_spi_release_bus(slave);
-}
-
-#ifndef CONFIG_SPI_CS_IS_VALID
-/*
- * you can define this function board specific
- * define above CONFIG in board specific config file and
- * provide the function in board specific src file
- */
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
- return bus == 0 && (cs == 0 || cs == 1);
-}
-#endif
-
-void spi_init(void)
-{
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
- _spi_cs_activate(spireg);
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
- _spi_cs_deactivate(spireg);
-}
-
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen,
- const void *dout, void *din, unsigned long flags)
-{
- return _spi_xfer(spireg, bitlen, dout, din, flags);
-}
-
-#else
-
-/* Here now the DM part */
-
-struct mvebu_spi_dev {
- bool is_errata_50mhz_ac;
-};
-
-struct mvebu_spi_platdata {
- struct kwspi_registers *spireg;
-};
-
-struct mvebu_spi_priv {
- struct kwspi_registers *spireg;
-};
-
static int mvebu_spi_set_speed(struct udevice *bus, uint hz)
{
struct mvebu_spi_platdata *plat = dev_get_platdata(bus);
{
struct mvebu_spi_platdata *plat = dev_get_platdata(bus);
struct kwspi_registers *reg = plat->spireg;
- const struct mvebu_spi_dev *drvdata;
u32 data = readl(®->cfg);
data &= ~(KWSPI_CPHA | KWSPI_CPOL | KWSPI_RXLSBF | KWSPI_TXLSBF);
writel(data, ®->cfg);
- drvdata = (struct mvebu_spi_dev *)dev_get_driver_data(bus);
- if (drvdata->is_errata_50mhz_ac)
+ if (plat->is_errata_50mhz_ac)
mvebu_spi_50mhz_ac_timing_erratum(bus, mode);
return 0;
return _spi_xfer(plat->spireg, bitlen, dout, din, flags);
}
+__attribute__((weak)) int mvebu_board_spi_claim_bus(struct udevice *dev)
+{
+ return 0;
+}
+
static int mvebu_spi_claim_bus(struct udevice *dev)
{
struct udevice *bus = dev->parent;
KWSPI_CS_MASK << KWSPI_CS_SHIFT,
spi_chip_select(dev) << KWSPI_CS_SHIFT);
+ return mvebu_board_spi_claim_bus(dev);
+}
+
+__attribute__((weak)) int mvebu_board_spi_release_bus(struct udevice *dev)
+{
return 0;
}
+static int mvebu_spi_release_bus(struct udevice *dev)
+{
+ return mvebu_board_spi_release_bus(dev);
+}
+
static int mvebu_spi_probe(struct udevice *bus)
{
struct mvebu_spi_platdata *plat = dev_get_platdata(bus);
static int mvebu_spi_ofdata_to_platdata(struct udevice *bus)
{
struct mvebu_spi_platdata *plat = dev_get_platdata(bus);
+ const struct mvebu_spi_dev *drvdata =
+ (struct mvebu_spi_dev *)dev_get_driver_data(bus);
plat->spireg = (struct kwspi_registers *)devfdt_get_addr(bus);
+ plat->is_errata_50mhz_ac = drvdata->is_errata_50mhz_ac;
return 0;
}
static const struct dm_spi_ops mvebu_spi_ops = {
.claim_bus = mvebu_spi_claim_bus,
+ .release_bus = mvebu_spi_release_bus,
.xfer = mvebu_spi_xfer,
.set_speed = mvebu_spi_set_speed,
.set_mode = mvebu_spi_set_mode,
*/
};
+static const struct mvebu_spi_dev armada_spi_dev_data = {
+ .is_errata_50mhz_ac = false,
+};
+
static const struct mvebu_spi_dev armada_xp_spi_dev_data = {
.is_errata_50mhz_ac = false,
};
static const struct udevice_id mvebu_spi_ids[] = {
{
+ .compatible = "marvell,orion-spi",
+ .data = (ulong)&armada_spi_dev_data,
+ },
+ {
.compatible = "marvell,armada-375-spi",
.data = (ulong)&armada_375_spi_dev_data
},
.priv_auto_alloc_size = sizeof(struct mvebu_spi_priv),
.probe = mvebu_spi_probe,
};
-#endif
projects / platform / kernel / u-boot.git / blobdiff