unsigned short stat; /* 0x08 */
unsigned short res3;
unsigned short iv; /* 0x0C */
- unsigned short res4[3];
+ unsigned short res4;
+ unsigned short syss; /* 0x10 */
+ unsigned short res4p1;
unsigned short buf; /* 0x14 */
unsigned short res5;
unsigned short cnt; /* 0x18 */
#define I2C_BUS_MAX 2
-/* I2C masks */
-
-/* I2C Interrupt Enable Register (I2C_IE): */
-#define I2C_IE_GC_IE (1 << 5)
-#define I2C_IE_XRDY_IE (1 << 4) /* Transmit data ready interrupt enable */
-#define I2C_IE_RRDY_IE (1 << 3) /* Receive data ready interrupt enable */
-#define I2C_IE_ARDY_IE (1 << 2) /* Register access ready interrupt enable */
-#define I2C_IE_NACK_IE (1 << 1) /* No acknowledgment interrupt enable */
-#define I2C_IE_AL_IE (1 << 0) /* Arbitration lost interrupt enable */
-
-/* I2C Status Register (I2C_STAT): */
-
-#define I2C_STAT_SBD (1 << 15) /* Single byte data */
-#define I2C_STAT_BB (1 << 12) /* Bus busy */
-#define I2C_STAT_ROVR (1 << 11) /* Receive overrun */
-#define I2C_STAT_XUDF (1 << 10) /* Transmit underflow */
-#define I2C_STAT_AAS (1 << 9) /* Address as slave */
-#define I2C_STAT_GC (1 << 5)
-#define I2C_STAT_XRDY (1 << 4) /* Transmit data ready */
-#define I2C_STAT_RRDY (1 << 3) /* Receive data ready */
-#define I2C_STAT_ARDY (1 << 2) /* Register access ready */
-#define I2C_STAT_NACK (1 << 1) /* No acknowledgment interrupt enable */
-#define I2C_STAT_AL (1 << 0) /* Arbitration lost interrupt enable */
-
-
-/* I2C Interrupt Code Register (I2C_INTCODE): */
-
-#define I2C_INTCODE_MASK 7
-#define I2C_INTCODE_NONE 0
-#define I2C_INTCODE_AL 1 /* Arbitration lost */
-#define I2C_INTCODE_NAK 2 /* No acknowledgement/general call */
-#define I2C_INTCODE_ARDY 3 /* Register access ready */
-#define I2C_INTCODE_RRDY 4 /* Rcv data ready */
-#define I2C_INTCODE_XRDY 5 /* Xmit data ready */
-
-/* I2C Buffer Configuration Register (I2C_BUF): */
-
-#define I2C_BUF_RDMA_EN (1 << 15) /* Receive DMA channel enable */
-#define I2C_BUF_XDMA_EN (1 << 7) /* Transmit DMA channel enable */
-
-/* I2C Configuration Register (I2C_CON): */
-
-#define I2C_CON_EN (1 << 15) /* I2C module enable */
-#define I2C_CON_BE (1 << 14) /* Big endian mode */
-#define I2C_CON_STB (1 << 11) /* Start byte mode (master mode only) */
-#define I2C_CON_MST (1 << 10) /* Master/slave mode */
-#define I2C_CON_TRX (1 << 9) /* Transmitter/receiver mode (master mode only) */
-#define I2C_CON_XA (1 << 8) /* Expand address */
-#define I2C_CON_STP (1 << 1) /* Stop condition (master mode only) */
-#define I2C_CON_STT (1 << 0) /* Start condition (master mode only) */
-
-/* I2C System Test Register (I2C_SYSTEST): */
-
-#define I2C_SYSTEST_ST_EN (1 << 15) /* System test enable */
-#define I2C_SYSTEST_FREE (1 << 14) /* Free running mode (on breakpoint) */
-#define I2C_SYSTEST_TMODE_MASK (3 << 12) /* Test mode select */
-#define I2C_SYSTEST_TMODE_SHIFT (12) /* Test mode select */
-#define I2C_SYSTEST_SCL_I (1 << 3) /* SCL line sense input value */
-#define I2C_SYSTEST_SCL_O (1 << 2) /* SCL line drive output value */
-#define I2C_SYSTEST_SDA_I (1 << 1) /* SDA line sense input value */
-#define I2C_SYSTEST_SDA_O (1 << 0) /* SDA line drive output value */
-
-/* These values were copied from omap3, include/asm-arm/arch-omap3/i2c.h. */
-#define OMAP_I2C_STANDARD 100000
-#define OMAP_I2C_FAST_MODE 400000
-#define OMAP_I2C_HIGH_SPEED 3400000
-
-#define SYSTEM_CLOCK_12 12000000
-#define SYSTEM_CLOCK_13 13000000
-#define SYSTEM_CLOCK_192 19200000
-#define SYSTEM_CLOCK_96 96000000
-
-#ifndef I2C_IP_CLK
-#define I2C_IP_CLK SYSTEM_CLOCK_96
-#endif
-
-#ifndef I2C_INTERNAL_SAMPLING_CLK
-#define I2C_INTERNAL_SAMPLING_CLK 19200000
-#endif
-
-/* These are the trim values for standard and fast speed */
-#ifndef I2C_FASTSPEED_SCLL_TRIM
-#define I2C_FASTSPEED_SCLL_TRIM 6
-#endif
-#ifndef I2C_FASTSPEED_SCLH_TRIM
-#define I2C_FASTSPEED_SCLH_TRIM 6
-#endif
-
-/* These are the trim values for high speed */
-#ifndef I2C_HIGHSPEED_PHASE_ONE_SCLL_TRIM
-#define I2C_HIGHSPEED_PHASE_ONE_SCLL_TRIM I2C_FASTSPEED_SCLL_TRIM
-#endif
-#ifndef I2C_HIGHSPEED_PHASE_ONE_SCLH_TRIM
-#define I2C_HIGHSPEED_PHASE_ONE_SCLH_TRIM I2C_FASTSPEED_SCLH_TRIM
-#endif
-#ifndef I2C_HIGHSPEED_PHASE_TWO_SCLL_TRIM
-#define I2C_HIGHSPEED_PHASE_TWO_SCLL_TRIM I2C_FASTSPEED_SCLL_TRIM
-#endif
-#ifndef I2C_HIGHSPEED_PHASE_TWO_SCLH_TRIM
-#define I2C_HIGHSPEED_PHASE_TWO_SCLH_TRIM I2C_FASTSPEED_SCLH_TRIM
-#endif
-
-#define I2C_PSC_MAX 0x0f
-#define I2C_PSC_MIN 0x00
-
-
#endif
puts("Unicore software on multiprocessor system!!\n"
"To enable mutlticore build define CONFIG_MP\n");
#endif
- volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
printf("CPU%d: ", pic->whoami);
} else {
puts("CPU: ");
volatile ccsr_rcpm_t *rcpm =
(void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
volatile ccsr_pic_t *pic =
- (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
u32 whoami = in_be32(&pic->whoami);
/* Enable the timebase register for this core */
u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0);
if (reg) {
+ u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr;
+ val = cpu_to_fdt32(val);
if (*reg == id) {
- fdt_setprop_string(blob, off, "status", "okay");
+ fdt_setprop_string(blob, off, "status",
+ "okay");
} else {
- u64 val = *reg * SIZE_BOOT_ENTRY + spin_tbl_addr;
- val = cpu_to_fdt32(val);
fdt_setprop_string(blob, off, "status",
"disabled");
- fdt_setprop_string(blob, off, "enable-method",
- "spin-table");
- fdt_setprop(blob, off, "cpu-release-addr",
- &val, sizeof(val));
}
+ fdt_setprop_string(blob, off, "enable-method",
+ "spin-table");
+ fdt_setprop(blob, off, "cpu-release-addr",
+ &val, sizeof(val));
} else {
printf ("cpu NULL\n");
}
int interrupt_init_cpu(unsigned int *decrementer_count)
{
- ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC85xx_PIC_ADDR;
+ ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
out_be32(&pic->gcr, MPC85xx_PICGCR_RST);
while (in_be32(&pic->gcr) & MPC85xx_PICGCR_RST)
int cpu_reset(int nr)
{
- volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
out_be32(&pic->pir, 1 << nr);
/* the dummy read works around an errata on early 85xx MP PICs */
(void)in_be32(&pic->pir);
gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
ccm = (void *)(CONFIG_SYS_FSL_CORENET_CCM_ADDR);
rcpm = (void *)(CONFIG_SYS_FSL_CORENET_RCPM_ADDR);
- pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
nr_cpus = ((in_be32(&pic->frr) >> 8) & 0xff) + 1;
volatile u32 bpcr;
volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
- volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
u32 devdisr;
int timeout = 10;
#endif
struct liodn_id_table sec_liodn_tbl[] = {
- SET_SEC_JQ_LIODN_ENTRY(0, 146, 154),
- SET_SEC_JQ_LIODN_ENTRY(1, 147, 155),
- SET_SEC_JQ_LIODN_ENTRY(2, 178, 186),
- SET_SEC_JQ_LIODN_ENTRY(3, 179, 187),
+ SET_SEC_JR_LIODN_ENTRY(0, 146, 154),
+ SET_SEC_JR_LIODN_ENTRY(1, 147, 155),
+ SET_SEC_JR_LIODN_ENTRY(2, 178, 186),
+ SET_SEC_JR_LIODN_ENTRY(3, 179, 187),
SET_SEC_RTIC_LIODN_ENTRY(a, 144),
SET_SEC_RTIC_LIODN_ENTRY(b, 145),
SET_SEC_RTIC_LIODN_ENTRY(c, 176),
void
ExtIntException(struct pt_regs *regs)
{
- volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+ volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC8xxx_PIC_ADDR);
uint vect;
}
int cpu_numcores() {
- ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC85xx_PIC_ADDR;
+ ccsr_pic_t __iomem *pic = (void *)CONFIG_SYS_MPC8xxx_PIC_ADDR;
struct cpu_type *cpu = gd->cpu;
/* better to query feature reporting register than just assume 1 */
+#define MPC8xxx_PICFRR_NCPU_MASK 0x00001f00
+#define MPC8xxx_PICFRR_NCPU_SHIFT 8
if (cpu == &cpu_type_unknown)
- return ((in_be32(&pic->frr) & MPC85xx_PICFRR_NCPU_MASK) >>
- MPC85xx_PICFRR_NCPU_SHIFT) + 1;
+ return ((in_be32(&pic->frr) & MPC8xxx_PICFRR_NCPU_MASK) >>
+ MPC8xxx_PICFRR_NCPU_SHIFT) + 1;
return cpu->num_cores;
}
#if defined(CONFIG_FSL_DDR3)
md_en = popts->mirrored_dimm;
#endif
+ rcw_en = popts->registered_dimm_en;
qd_en = popts->quad_rank_present ? 1 : 0;
ddr->ddr_sdram_cfg_2 = (0
| ((frc_sr & 0x1) << 31)
FM_PPID_RX_PORT_OFFSET(fmNum, enetNum + 16), \
CONFIG_SYS_FSL_FM##fmNum##_RX##enetNum##_10G_OFFSET) \
-#define SET_SEC_JQ_LIODN_ENTRY(jqNum, liodnA, liodnB) \
- SET_LIODN_ENTRY_2("fsl,sec4.0-job-queue", liodnA, liodnB,\
- offsetof(ccsr_sec_t, jqliodnr[jqNum].ls) + \
+#define SET_SEC_JR_LIODN_ENTRY(jrNum, liodnA, liodnB) \
+ SET_LIODN_ENTRY_2("fsl,sec4.0-job-ring", liodnA, liodnB,\
+ offsetof(ccsr_sec_t, jrliodnr[jrNum].ls) + \
CONFIG_SYS_FSL_SEC_OFFSET, \
- CONFIG_SYS_FSL_SEC_OFFSET + 0x1000 + 0x1000 * jqNum)
+ CONFIG_SYS_FSL_SEC_OFFSET + 0x1000 + 0x1000 * jrNum)
/* This is a bit evil since we treat rtic param as both a string & hex value */
#define SET_SEC_RTIC_LIODN_ENTRY(rtic, liodnA) \
u32 eoi; /* End Of IRQ */
u8 res9[3916];
u32 frr; /* Feature Reporting */
-#define MPC85xx_PICFRR_NCPU_MASK 0x00001f00
-#define MPC85xx_PICFRR_NCPU_SHIFT 8
u8 res10[28];
u32 gcr; /* Global Configuration */
#define MPC85xx_PICGCR_RST 0x80000000
struct {
u32 ms; /* Job Ring LIODN Register, MS */
u32 ls; /* Job Ring LIODN Register, LS */
- } jqliodnr[4];
+ } jrliodnr[4];
u8 res2[0x30];
struct {
u32 ms; /* RTIC LIODN Register, MS */
#define SEC_CTPR_MS_AXI_LIODN 0x08000000
#define SEC_CTPR_MS_QI 0x02000000
#define SEC_RVID_MA 0x0f000000
-#define SEC_CHANUM_MS_JQNUM_MASK 0xf0000000
-#define SEC_CHANUM_MS_JQNUM_SHIFT 28
+#define SEC_CHANUM_MS_JRNUM_MASK 0xf0000000
+#define SEC_CHANUM_MS_JRNUM_SHIFT 28
#define SEC_CHANUM_MS_DECONUM_MASK 0x0f000000
#define SEC_CHANUM_MS_DECONUM_SHIFT 24
#endif
(CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_DMA_OFFSET)
#define CONFIG_SYS_MPC85xx_ESDHC_ADDR \
(CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_ESDHC_OFFSET)
-#define CONFIG_SYS_MPC85xx_PIC_ADDR \
+#define CONFIG_SYS_MPC8xxx_PIC_ADDR \
(CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_PIC_OFFSET)
#define CONFIG_SYS_MPC85xx_CPM_ADDR \
(CONFIG_SYS_IMMR + CONFIG_SYS_MPC85xx_CPM_OFFSET)
extern immap_t *immr;
-#define CONFIG_SYS_MPC86xx_DDR_OFFSET (0x2000)
+#define CONFIG_SYS_MPC86xx_DDR_OFFSET 0x2000
#define CONFIG_SYS_MPC86xx_DDR_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR_OFFSET)
-#define CONFIG_SYS_MPC86xx_DDR2_OFFSET (0x6000)
+#define CONFIG_SYS_MPC86xx_DDR2_OFFSET 0x6000
#define CONFIG_SYS_MPC86xx_DDR2_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DDR2_OFFSET)
-#define CONFIG_SYS_MPC86xx_DMA_OFFSET (0x21000)
+#define CONFIG_SYS_MPC86xx_DMA_OFFSET 0x21000
#define CONFIG_SYS_MPC86xx_DMA_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_DMA_OFFSET)
+#define CONFIG_SYS_MPC86xx_PIC_OFFSET 0x40000
+#define CONFIG_SYS_MPC8xxx_PIC_ADDR (CONFIG_SYS_IMMR + CONFIG_SYS_MPC86xx_PIC_OFFSET)
+
#define CONFIG_SYS_MPC86xx_PCI1_OFFSET 0x8000
#ifdef CONFIG_MPC8610
#include <common.h>
#include <command.h>
#include <netdev.h>
+#include <linux/compiler.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/cache.h>
set_liodns();
setup_portals();
-#ifdef CONFIG_SRIO1
- if (is_serdes_configured(SRIO1)) {
- set_next_law(CONFIG_SYS_RIO1_MEM_PHYS, LAW_SIZE_256M,
- LAW_TRGT_IF_RIO_1);
- } else {
- printf (" SRIO1: disabled\n");
- }
-#else
- setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO1); /* disable */
-#endif
-
-#ifdef CONFIG_SRIO2
- if (is_serdes_configured(SRIO2)) {
- set_next_law(CONFIG_SYS_RIO2_MEM_PHYS, LAW_SIZE_256M,
- LAW_TRGT_IF_RIO_2);
- } else {
- printf (" SRIO2: disabled\n");
- }
-#else
- setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO2); /* disable */
-#endif
-
return 0;
}
int misc_init_r(void)
{
serdes_corenet_t *srds_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR;
+ __maybe_unused ccsr_gur_t *gur;
u32 actual[NUM_SRDS_BANKS];
unsigned int i;
u8 sw3;
+ gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#ifdef CONFIG_SRIO1
+ if (is_serdes_configured(SRIO1)) {
+ set_next_law(CONFIG_SYS_RIO1_MEM_PHYS, LAW_SIZE_256M,
+ LAW_TRGT_IF_RIO_1);
+ } else {
+ printf (" SRIO1: disabled\n");
+ }
+#else
+ setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO1); /* disable */
+#endif
+
+#ifdef CONFIG_SRIO2
+ if (is_serdes_configured(SRIO2)) {
+ set_next_law(CONFIG_SYS_RIO2_MEM_PHYS, LAW_SIZE_256M,
+ LAW_TRGT_IF_RIO_2);
+ } else {
+ printf (" SRIO2: disabled\n");
+ }
+#else
+ setbits_be32(&gur->devdisr, FSL_CORENET_DEVDISR_SRIO2); /* disable */
+#endif
+
/* Warn if the expected SERDES reference clocks don't match the
* actual reference clocks. This needs to be done after calling
* p4080_erratum_serdes8(), since that function may modify the clocks.
* seem reliable, but errors will appear when memory intensive
* program is run. */
/* XXX: Single rank at 800 MHz is OK. */
-const board_specific_parameters_t board_specific_parameters[][20] = {
+const board_specific_parameters_t board_specific_parameters[][30] = {
{
/* memory controller 0 */
/* lo| hi| num| clk| cpo|wrdata|2T */
/* mhz| mhz|ranks|adjst| | delay| */
+ { 0, 333, 4, 6, 7, 3, 0},
+ {334, 400, 4, 6, 9, 3, 0},
+ {401, 549, 4, 6, 11, 3, 0},
+ {550, 680, 4, 1, 10, 5, 0},
+ {681, 850, 4, 1, 12, 5, 0},
+ {851, 1050, 4, 1, 12, 5, 0},
+ {1051, 1250, 4, 1, 15, 4, 0},
+ {1251, 1350, 4, 1, 15, 4, 0},
{ 0, 333, 2, 6, 7, 3, 0},
{334, 400, 2, 6, 9, 3, 0},
{401, 549, 2, 6, 11, 3, 0},
/* memory controller 1 */
/* lo| hi| num| clk| cpo|wrdata|2T */
/* mhz| mhz|ranks|adjst| | delay| */
+ { 0, 333, 4, 6, 7, 3, 0},
+ {334, 400, 4, 6, 9, 3, 0},
+ {401, 549, 4, 6, 11, 3, 0},
+ {550, 680, 4, 1, 10, 5, 0},
+ {681, 850, 4, 1, 12, 5, 0},
+ {851, 1050, 4, 1, 12, 5, 0},
+ {1051, 1250, 4, 1, 15, 4, 0},
+ {1251, 1350, 4, 1, 15, 4, 0},
{ 0, 333, 2, 6, 7, 3, 0},
{334, 400, 2, 6, 9, 3, 0},
{401, 549, 2, 6, 11, 3, 0},
{550, 680, 1, 4, 0x1f, 3, 0},
{681, 850, 1, 4, 0x1f, 4, 0}
#else
- { 0, 850, 2, 4, 0x1f, 4, 0},
+ { 0, 850, 2, 6, 0x1f, 4, 0},
{ 0, 850, 1, 4, 0x1f, 4, 0}
#endif
},
/* Write leveling override */
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xa;
- popts->wrlvl_start = 0x7;
+ popts->wrlvl_start = 0x8;
/* Rtt and Rtt_WR override */
popts->rtt_override = 1;
popts->rtt_override_value = DDR3_RTT_120_OHM;
phys_size_t initdram(int board_type)
{
volatile immap_t *im = (volatile immap_t *)CONFIG_SYS_IMMR;
- volatile fsl_lbus_t *lbc = &im->lbus;
+ volatile fsl_lbc_t *lbc = &im->im_lbc;
u32 msize;
if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im)
/*
* get_alen: small parser helper function to get address length
- * returns the address length,or 0 on error
+ * returns the address length
*/
static uint get_alen(char *arg)
{
for (j = 0; j < 8; j++) {
if (arg[j] == '.') {
alen = arg[j+1] - '0';
- if (alen > 3) {
- return 0;
- }
break;
} else if (arg[j] == '\0')
break;
*/
devaddr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
}
*/
addr = simple_strtoul(argv[2], NULL, 16);
alen = get_alen(argv[2]);
- if (alen == 0)
+ if (alen > 3)
return cmd_usage(cmdtp);
/*
return r;
}
-static int of_n_cells(const void *blob, int nodeoffset, const char *name)
-{
- int np;
- const int *ip;
-
- do {
- np = fdt_parent_offset(blob, nodeoffset);
-
- if (np >= 0)
- nodeoffset = np;
- ip = (int *)fdt_getprop(blob, nodeoffset, name, NULL);
- if (ip)
- return be32_to_cpup(ip);
- } while (np >= 0);
-
- /* No #<NAME>-cells property for the root node */
- return 1;
-}
-
-int of_n_addr_cells(const void *blob, int nodeoffset)
-{
- return of_n_cells(blob, nodeoffset, "#address-cells");
-}
-
-int of_n_size_cells(const void *blob, int nodeoffset)
-{
- return of_n_cells(blob, nodeoffset, "#size-cells");
-}
-
#define PRu64 "%llx"
/* Max address size we deal with */
struct of_bus {
const char *name;
const char *addresses;
- void (*count_cells)(void *blob, int offset,
+ void (*count_cells)(void *blob, int parentoffset,
int *addrc, int *sizec);
u64 (*map)(u32 *addr, const u32 *range,
int na, int ns, int pna);
};
/* Default translator (generic bus) */
-static void of_bus_default_count_cells(void *blob, int offset,
+static void of_bus_default_count_cells(void *blob, int parentoffset,
int *addrc, int *sizec)
{
- if (addrc)
- *addrc = of_n_addr_cells(blob, offset);
- if (sizec)
- *sizec = of_n_size_cells(blob, offset);
+ const u32 *prop;
+
+ if (addrc) {
+ prop = fdt_getprop(blob, parentoffset, "#address-cells", NULL);
+ if (prop)
+ *addrc = be32_to_cpup(prop);
+ else
+ *addrc = 2;
+ }
+
+ if (sizec) {
+ prop = fdt_getprop(blob, parentoffset, "#size-cells", NULL);
+ if (prop)
+ *sizec = be32_to_cpup(prop);
+ else
+ *sizec = 1;
+ }
}
static u64 of_bus_default_map(u32 *addr, const u32 *range,
bus = &of_busses[0];
/* Cound address cells & copy address locally */
- bus->count_cells(blob, node_offset, &na, &ns);
+ bus->count_cells(blob, parent, &na, &ns);
if (!OF_CHECK_COUNTS(na, ns)) {
printf("%s: Bad cell count for %s\n", __FUNCTION__,
fdt_get_name(blob, node_offset, NULL));
/* Get new parent bus and counts */
pbus = &of_busses[0];
- pbus->count_cells(blob, node_offset, &pna, &pns);
+ pbus->count_cells(blob, parent, &pna, &pns);
if (!OF_CHECK_COUNTS(pna, pns)) {
printf("%s: Bad cell count for %s\n", __FUNCTION__,
fdt_get_name(blob, node_offset, NULL));
while (count) {
xfer_size = MIN(FSL_DMA_MAX_SIZE, count);
- out_dma32(&dma->dar, (uint) dest);
- out_dma32(&dma->sar, (uint) src);
+ out_dma32(&dma->dar, (u32) (dest & 0xFFFFFFFF));
+ out_dma32(&dma->sar, (u32) (src & 0xFFFFFFFF));
+ out_dma32(&dma->satr,
+ in_dma32(&dma->satr) | (u32)((u64)src >> 32));
+ out_dma32(&dma->datr,
+ in_dma32(&dma->datr) | (u32)((u64)dest >> 32));
out_dma32(&dma->bcr, xfer_size);
dma_sync();
COBJS-$(CONFIG_BFIN_TWI_I2C) += bfin-twi_i2c.o
COBJS-$(CONFIG_DRIVER_DAVINCI_I2C) += davinci_i2c.o
COBJS-$(CONFIG_FSL_I2C) += fsl_i2c.o
-COBJS-$(CONFIG_I2C_KIRKWOOD) += kirkwood_i2c.o
+COBJS-$(CONFIG_I2C_MVTWSI) += mvtwsi.o
COBJS-$(CONFIG_I2C_MXC) += mxc_i2c.o
COBJS-$(CONFIG_DRIVER_OMAP1510_I2C) += omap1510_i2c.o
COBJS-$(CONFIG_DRIVER_OMAP24XX_I2C) += omap24xx_i2c.o
+++ /dev/null
-/*
- * Driver for the i2c controller on the Marvell line of host bridges
- * (e.g, gt642[46]0, mv643[46]0, mv644[46]0, Orion SoC family),
- * and Kirkwood family.
- *
- * Based on:
- * Author: Mark A. Greer <mgreer@mvista.com>
- * 2005 (c) MontaVista, Software, Inc.
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301 USA
- *
- * ported from Linux to u-boot
- * (C) Copyright 2009
- * Heiko Schocher, DENX Software Engineering, hs@denx.de.
- */
-#include <common.h>
-#include <i2c.h>
-#include <asm/arch/kirkwood.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-static unsigned int i2c_bus_num __attribute__ ((section (".data"))) = 0;
-#if defined(CONFIG_I2C_MUX)
-static unsigned int i2c_bus_num_mux __attribute__ ((section ("data"))) = 0;
-#endif
-
-/* Register defines */
-#define KW_I2C_REG_SLAVE_ADDR 0x00
-#define KW_I2C_REG_DATA 0x04
-#define KW_I2C_REG_CONTROL 0x08
-#define KW_I2C_REG_STATUS 0x0c
-#define KW_I2C_REG_BAUD 0x0c
-#define KW_I2C_REG_EXT_SLAVE_ADDR 0x10
-#define KW_I2C_REG_SOFT_RESET 0x1c
-
-#define KW_I2C_REG_CONTROL_ACK 0x00000004
-#define KW_I2C_REG_CONTROL_IFLG 0x00000008
-#define KW_I2C_REG_CONTROL_STOP 0x00000010
-#define KW_I2C_REG_CONTROL_START 0x00000020
-#define KW_I2C_REG_CONTROL_TWSIEN 0x00000040
-#define KW_I2C_REG_CONTROL_INTEN 0x00000080
-
-/* Ctlr status values */
-#define KW_I2C_STATUS_BUS_ERR 0x00
-#define KW_I2C_STATUS_MAST_START 0x08
-#define KW_I2C_STATUS_MAST_REPEAT_START 0x10
-#define KW_I2C_STATUS_MAST_WR_ADDR_ACK 0x18
-#define KW_I2C_STATUS_MAST_WR_ADDR_NO_ACK 0x20
-#define KW_I2C_STATUS_MAST_WR_ACK 0x28
-#define KW_I2C_STATUS_MAST_WR_NO_ACK 0x30
-#define KW_I2C_STATUS_MAST_LOST_ARB 0x38
-#define KW_I2C_STATUS_MAST_RD_ADDR_ACK 0x40
-#define KW_I2C_STATUS_MAST_RD_ADDR_NO_ACK 0x48
-#define KW_I2C_STATUS_MAST_RD_DATA_ACK 0x50
-#define KW_I2C_STATUS_MAST_RD_DATA_NO_ACK 0x58
-#define KW_I2C_STATUS_MAST_WR_ADDR_2_ACK 0xd0
-#define KW_I2C_STATUS_MAST_WR_ADDR_2_NO_ACK 0xd8
-#define KW_I2C_STATUS_MAST_RD_ADDR_2_ACK 0xe0
-#define KW_I2C_STATUS_MAST_RD_ADDR_2_NO_ACK 0xe8
-#define KW_I2C_STATUS_NO_STATUS 0xf8
-
-/* Driver states */
-enum {
- KW_I2C_STATE_INVALID,
- KW_I2C_STATE_IDLE,
- KW_I2C_STATE_WAITING_FOR_START_COND,
- KW_I2C_STATE_WAITING_FOR_ADDR_1_ACK,
- KW_I2C_STATE_WAITING_FOR_ADDR_2_ACK,
- KW_I2C_STATE_WAITING_FOR_SLAVE_ACK,
- KW_I2C_STATE_WAITING_FOR_SLAVE_DATA,
-};
-
-/* Driver actions */
-enum {
- KW_I2C_ACTION_INVALID,
- KW_I2C_ACTION_CONTINUE,
- KW_I2C_ACTION_SEND_START,
- KW_I2C_ACTION_SEND_ADDR_1,
- KW_I2C_ACTION_SEND_ADDR_2,
- KW_I2C_ACTION_SEND_DATA,
- KW_I2C_ACTION_RCV_DATA,
- KW_I2C_ACTION_RCV_DATA_STOP,
- KW_I2C_ACTION_SEND_STOP,
-};
-
-/* defines to get compatible with Linux driver */
-#define IRQ_NONE 0x0
-#define IRQ_HANDLED 0x01
-
-#define I2C_M_TEN 0x01
-#define I2C_M_RD 0x02
-#define I2C_M_REV_DIR_ADDR 0x04;
-
-struct i2c_msg {
- u32 addr;
- u32 flags;
- u8 *buf;
- u32 len;
-};
-
-struct kirkwood_i2c_data {
- int irq;
- u32 state;
- u32 action;
- u32 aborting;
- u32 cntl_bits;
- void *reg_base;
- u32 reg_base_p;
- u32 reg_size;
- u32 addr1;
- u32 addr2;
- u32 bytes_left;
- u32 byte_posn;
- u32 block;
- int rc;
- u32 freq_m;
- u32 freq_n;
- struct i2c_msg *msg;
-};
-
-static struct kirkwood_i2c_data __drv_data __attribute__ ((section (".data")));
-static struct kirkwood_i2c_data *drv_data = &__drv_data;
-static struct i2c_msg __i2c_msg __attribute__ ((section (".data")));
-static struct i2c_msg *kirkwood_i2c_msg = &__i2c_msg;
-
-/*
- *****************************************************************************
- *
- * Finite State Machine & Interrupt Routines
- *
- *****************************************************************************
- */
-
-static inline int abs(int n)
-{
- if(n >= 0)
- return n;
- else
- return n * -1;
-}
-
-static void kirkwood_calculate_speed(int speed)
-{
- int calcspeed;
- int diff;
- int best_diff = CONFIG_SYS_TCLK;
- int best_speed = 0;
- int m, n;
- int tmp[8] = {2, 4, 8, 16, 32, 64, 128, 256};
-
- for (n = 0; n < 8; n++) {
- for (m = 0; m < 16; m++) {
- calcspeed = CONFIG_SYS_TCLK / (10 * (m + 1) * tmp[n]);
- diff = abs((speed - calcspeed));
- if ( diff < best_diff) {
- best_diff = diff;
- best_speed = calcspeed;
- drv_data->freq_m = m;
- drv_data->freq_n = n;
- }
- }
- }
-}
-
-/* Reset hardware and initialize FSM */
-static void
-kirkwood_i2c_hw_init(int speed, int slaveadd)
-{
- drv_data->state = KW_I2C_STATE_IDLE;
-
- kirkwood_calculate_speed(speed);
- writel(0, CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_SOFT_RESET);
- writel((((drv_data->freq_m & 0xf) << 3) | (drv_data->freq_n & 0x7)),
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_BAUD);
- writel(slaveadd, CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_SLAVE_ADDR);
- writel(0, CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_EXT_SLAVE_ADDR);
- writel(KW_I2C_REG_CONTROL_TWSIEN | KW_I2C_REG_CONTROL_STOP,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
-}
-
-static void
-kirkwood_i2c_fsm(u32 status)
-{
- /*
- * If state is idle, then this is likely the remnants of an old
- * operation that driver has given up on or the user has killed.
- * If so, issue the stop condition and go to idle.
- */
- if (drv_data->state == KW_I2C_STATE_IDLE) {
- drv_data->action = KW_I2C_ACTION_SEND_STOP;
- return;
- }
-
- /* The status from the ctlr [mostly] tells us what to do next */
- switch (status) {
- /* Start condition interrupt */
- case KW_I2C_STATUS_MAST_START: /* 0x08 */
- case KW_I2C_STATUS_MAST_REPEAT_START: /* 0x10 */
- drv_data->action = KW_I2C_ACTION_SEND_ADDR_1;
- drv_data->state = KW_I2C_STATE_WAITING_FOR_ADDR_1_ACK;
- break;
-
- /* Performing a write */
- case KW_I2C_STATUS_MAST_WR_ADDR_ACK: /* 0x18 */
- if (drv_data->msg->flags & I2C_M_TEN) {
- drv_data->action = KW_I2C_ACTION_SEND_ADDR_2;
- drv_data->state =
- KW_I2C_STATE_WAITING_FOR_ADDR_2_ACK;
- break;
- }
- /* FALLTHRU */
- case KW_I2C_STATUS_MAST_WR_ADDR_2_ACK: /* 0xd0 */
- case KW_I2C_STATUS_MAST_WR_ACK: /* 0x28 */
- if ((drv_data->bytes_left == 0)
- || (drv_data->aborting
- && (drv_data->byte_posn != 0))) {
- drv_data->action = KW_I2C_ACTION_SEND_STOP;
- drv_data->state = KW_I2C_STATE_IDLE;
- } else {
- drv_data->action = KW_I2C_ACTION_SEND_DATA;
- drv_data->state =
- KW_I2C_STATE_WAITING_FOR_SLAVE_ACK;
- drv_data->bytes_left--;
- }
- break;
-
- /* Performing a read */
- case KW_I2C_STATUS_MAST_RD_ADDR_ACK: /* 40 */
- if (drv_data->msg->flags & I2C_M_TEN) {
- drv_data->action = KW_I2C_ACTION_SEND_ADDR_2;
- drv_data->state =
- KW_I2C_STATE_WAITING_FOR_ADDR_2_ACK;
- break;
- }
- /* FALLTHRU */
- case KW_I2C_STATUS_MAST_RD_ADDR_2_ACK: /* 0xe0 */
- if (drv_data->bytes_left == 0) {
- drv_data->action = KW_I2C_ACTION_SEND_STOP;
- drv_data->state = KW_I2C_STATE_IDLE;
- break;
- }
- /* FALLTHRU */
- case KW_I2C_STATUS_MAST_RD_DATA_ACK: /* 0x50 */
- if (status != KW_I2C_STATUS_MAST_RD_DATA_ACK)
- drv_data->action = KW_I2C_ACTION_CONTINUE;
- else {
- drv_data->action = KW_I2C_ACTION_RCV_DATA;
- drv_data->bytes_left--;
- }
- drv_data->state = KW_I2C_STATE_WAITING_FOR_SLAVE_DATA;
-
- if ((drv_data->bytes_left == 1) || drv_data->aborting)
- drv_data->cntl_bits &= ~KW_I2C_REG_CONTROL_ACK;
- break;
-
- case KW_I2C_STATUS_MAST_RD_DATA_NO_ACK: /* 0x58 */
- drv_data->action = KW_I2C_ACTION_RCV_DATA_STOP;
- drv_data->state = KW_I2C_STATE_IDLE;
- break;
-
- case KW_I2C_STATUS_MAST_WR_ADDR_NO_ACK: /* 0x20 */
- case KW_I2C_STATUS_MAST_WR_NO_ACK: /* 30 */
- case KW_I2C_STATUS_MAST_RD_ADDR_NO_ACK: /* 48 */
- /* Doesn't seem to be a device at other end */
- drv_data->action = KW_I2C_ACTION_SEND_STOP;
- drv_data->state = KW_I2C_STATE_IDLE;
- drv_data->rc = -ENODEV;
- break;
-
- default:
- printf("kirkwood_i2c_fsm: Ctlr Error -- state: 0x%x, "
- "status: 0x%x, addr: 0x%x, flags: 0x%x\n",
- drv_data->state, status, drv_data->msg->addr,
- drv_data->msg->flags);
- drv_data->action = KW_I2C_ACTION_SEND_STOP;
- kirkwood_i2c_hw_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
- drv_data->rc = -EIO;
- }
-}
-
-static void
-kirkwood_i2c_do_action(void)
-{
- switch(drv_data->action) {
- case KW_I2C_ACTION_CONTINUE:
- writel(drv_data->cntl_bits,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_SEND_START:
- writel(drv_data->cntl_bits | KW_I2C_REG_CONTROL_START,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_SEND_ADDR_1:
- writel(drv_data->addr1,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_DATA);
- writel(drv_data->cntl_bits,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_SEND_ADDR_2:
- writel(drv_data->addr2,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_DATA);
- writel(drv_data->cntl_bits,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_SEND_DATA:
- writel(drv_data->msg->buf[drv_data->byte_posn++],
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_DATA);
- writel(drv_data->cntl_bits,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_RCV_DATA:
- drv_data->msg->buf[drv_data->byte_posn++] =
- readl(CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_DATA);
- writel(drv_data->cntl_bits,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- break;
-
- case KW_I2C_ACTION_RCV_DATA_STOP:
- drv_data->msg->buf[drv_data->byte_posn++] =
- readl(CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_DATA);
- drv_data->cntl_bits &= ~KW_I2C_REG_CONTROL_INTEN;
- writel(drv_data->cntl_bits | KW_I2C_REG_CONTROL_STOP,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- drv_data->block = 0;
- break;
-
- case KW_I2C_ACTION_INVALID:
- default:
- printf("kirkwood_i2c_do_action: Invalid action: %d\n",
- drv_data->action);
- drv_data->rc = -EIO;
- /* FALLTHRU */
- case KW_I2C_ACTION_SEND_STOP:
- drv_data->cntl_bits &= ~KW_I2C_REG_CONTROL_INTEN;
- writel(drv_data->cntl_bits | KW_I2C_REG_CONTROL_STOP,
- CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- drv_data->block = 0;
- break;
- }
-}
-
-static int
-kirkwood_i2c_intr(void)
-{
- u32 status;
- u32 ctrl;
- int rc = IRQ_NONE;
-
- ctrl = readl(CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- while ((ctrl & KW_I2C_REG_CONTROL_IFLG) &&
- (drv_data->rc == 0)) {
- status = readl(CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_STATUS);
- kirkwood_i2c_fsm(status);
- kirkwood_i2c_do_action();
- rc = IRQ_HANDLED;
- ctrl = readl(CONFIG_I2C_KW_REG_BASE + KW_I2C_REG_CONTROL);
- udelay(1000);
- }
- return rc;
-}
-
-static void
-kirkwood_i2c_doio(struct i2c_msg *msg)
-{
- int ret;
-
- while ((drv_data->rc == 0) && (drv_data->state != KW_I2C_STATE_IDLE)) {
- /* poll Status register */
- ret = kirkwood_i2c_intr();
- if (ret == IRQ_NONE)
- udelay(10);
- }
-}
-
-static void
-kirkwood_i2c_prepare_for_io(struct i2c_msg *msg)
-{
- u32 dir = 0;
-
- drv_data->msg = msg;
- drv_data->byte_posn = 0;
- drv_data->bytes_left = msg->len;
- drv_data->aborting = 0;
- drv_data->rc = 0;
- /* in u-boot we use no IRQs */
- drv_data->cntl_bits = KW_I2C_REG_CONTROL_ACK | KW_I2C_REG_CONTROL_TWSIEN;
-
- if (msg->flags & I2C_M_RD)
- dir = 1;
- if (msg->flags & I2C_M_TEN) {
- drv_data->addr1 = 0xf0 | (((u32)msg->addr & 0x300) >> 7) | dir;
- drv_data->addr2 = (u32)msg->addr & 0xff;
- } else {
- drv_data->addr1 = ((u32)msg->addr & 0x7f) << 1 | dir;
- drv_data->addr2 = 0;
- }
- /* OK, no start it (from kirkwood_i2c_execute_msg())*/
- drv_data->action = KW_I2C_ACTION_SEND_START;
- drv_data->state = KW_I2C_STATE_WAITING_FOR_START_COND;
- drv_data->block = 1;
- kirkwood_i2c_do_action();
-}
-
-void
-i2c_init(int speed, int slaveadd)
-{
- kirkwood_i2c_hw_init(speed, slaveadd);
-}
-
-int
-i2c_read(u8 dev, uint addr, int alen, u8 *data, int length)
-{
- kirkwood_i2c_msg->buf = data;
- kirkwood_i2c_msg->len = length;
- kirkwood_i2c_msg->addr = dev;
- kirkwood_i2c_msg->flags = I2C_M_RD;
-
- kirkwood_i2c_prepare_for_io(kirkwood_i2c_msg);
- kirkwood_i2c_doio(kirkwood_i2c_msg);
- return drv_data->rc;
-}
-
-int
-i2c_write(u8 dev, uint addr, int alen, u8 *data, int length)
-{
- kirkwood_i2c_msg->buf = data;
- kirkwood_i2c_msg->len = length;
- kirkwood_i2c_msg->addr = dev;
- kirkwood_i2c_msg->flags = 0;
-
- kirkwood_i2c_prepare_for_io(kirkwood_i2c_msg);
- kirkwood_i2c_doio(kirkwood_i2c_msg);
- return drv_data->rc;
-}
-
-int
-i2c_probe(uchar chip)
-{
- return i2c_read(chip, 0, 0, NULL, 0);
-}
-
-int i2c_set_bus_num(unsigned int bus)
-{
-#if defined(CONFIG_I2C_MUX)
- if (bus < CONFIG_SYS_MAX_I2C_BUS) {
- i2c_bus_num = bus;
- } else {
- int ret;
-
- ret = i2x_mux_select_mux(bus);
- if (ret)
- return ret;
- i2c_bus_num = 0;
- }
- i2c_bus_num_mux = bus;
-#else
- if (bus > 0) {
- return -1;
- }
-
- i2c_bus_num = bus;
-#endif
- return 0;
-}
-
-unsigned int i2c_get_bus_num(void)
-{
-#if defined(CONFIG_I2C_MUX)
- return i2c_bus_num_mux;
-#else
- return i2c_bus_num;
-#endif
-}
--- /dev/null
+/*
+ * Driver for the TWSI (i2c) controller found on the Marvell
+ * orion5x and kirkwood SoC families.
+ *
+ * Author: Albert Aribaud <albert.aribaud@free.fr>
+ * Copyright (c) 2010 Albert Aribaud.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <asm/errno.h>
+#include <asm/io.h>
+
+/*
+ * include a file that will provide CONFIG_I2C_MVTWSI_BASE
+ * and possibly other settings
+ */
+
+#if defined(CONFIG_ORION5X)
+#include <asm/arch/orion5x.h>
+#elif defined(CONFIG_KIRKWOOD)
+#include <asm/arch/kirkwood.h>
+#else
+#error Driver mvtwsi not supported by SoC or board
+#endif
+
+/*
+ * TWSI register structure
+ */
+
+struct mvtwsi_registers {
+ u32 slave_address;
+ u32 data;
+ u32 control;
+ union {
+ u32 status; /* when reading */
+ u32 baudrate; /* when writing */
+ };
+ u32 xtnd_slave_addr;
+ u32 reserved[2];
+ u32 soft_reset;
+};
+
+/*
+ * Control register fields
+ */
+
+#define MVTWSI_CONTROL_ACK 0x00000004
+#define MVTWSI_CONTROL_IFLG 0x00000008
+#define MVTWSI_CONTROL_STOP 0x00000010
+#define MVTWSI_CONTROL_START 0x00000020
+#define MVTWSI_CONTROL_TWSIEN 0x00000040
+#define MVTWSI_CONTROL_INTEN 0x00000080
+
+/*
+ * Status register values -- only those expected in normal master
+ * operation on non-10-bit-address devices; whatever status we don't
+ * expect in nominal conditions (bus errors, arbitration losses,
+ * missing ACKs...) we just pass back to the caller as an error
+ * code.
+ */
+
+#define MVTWSI_STATUS_START 0x08
+#define MVTWSI_STATUS_REPEATED_START 0x10
+#define MVTWSI_STATUS_ADDR_W_ACK 0x18
+#define MVTWSI_STATUS_DATA_W_ACK 0x28
+#define MVTWSI_STATUS_ADDR_R_ACK 0x40
+#define MVTWSI_STATUS_ADDR_R_NAK 0x48
+#define MVTWSI_STATUS_DATA_R_ACK 0x50
+#define MVTWSI_STATUS_DATA_R_NAK 0x58
+#define MVTWSI_STATUS_IDLE 0xF8
+
+/*
+ * The single instance of the controller we'll be dealing with
+ */
+
+static struct mvtwsi_registers *twsi =
+ (struct mvtwsi_registers *) CONFIG_I2C_MVTWSI_BASE;
+
+/*
+ * Returned statuses are 0 for success and nonzero otherwise.
+ * Currently, cmd_i2c and cmd_eeprom do not interpret an error status.
+ * Thus to ease debugging, the return status contains some debug info:
+ * - bits 31..24 are error class: 1 is timeout, 2 is 'status mismatch'.
+ * - bits 23..16 are the last value of the control register.
+ * - bits 15..8 are the last value of the status register.
+ * - bits 7..0 are the expected value of the status register.
+ */
+
+#define MVTWSI_ERROR_WRONG_STATUS 0x01
+#define MVTWSI_ERROR_TIMEOUT 0x02
+
+#define MVTWSI_ERROR(ec, lc, ls, es) (((ec << 24) & 0xFF000000) | \
+ ((lc << 16) & 0x00FF0000) | ((ls<<8) & 0x0000FF00) | (es & 0xFF))
+
+/*
+ * Wait for IFLG to raise, or return 'timeout'; then if status is as expected,
+ * return 0 (ok) or return 'wrong status'.
+ */
+static int twsi_wait(int expected_status)
+{
+ int control, status;
+ int timeout = 1000;
+
+ do {
+ control = readl(&twsi->control);
+ if (control & MVTWSI_CONTROL_IFLG) {
+ status = readl(&twsi->status);
+ if (status == expected_status)
+ return 0;
+ else
+ return MVTWSI_ERROR(
+ MVTWSI_ERROR_WRONG_STATUS,
+ control, status, expected_status);
+ }
+ udelay(10); /* one clock cycle at 100 kHz */
+ } while (timeout--);
+ status = readl(&twsi->status);
+ return MVTWSI_ERROR(
+ MVTWSI_ERROR_TIMEOUT, control, status, expected_status);
+}
+
+/*
+ * These flags are ORed to any write to the control register
+ * They allow global setting of TWSIEN and ACK.
+ * By default none are set.
+ * twsi_start() sets TWSIEN (in case the controller was disabled)
+ * twsi_recv() sets ACK or resets it depending on expected status.
+ */
+static u8 twsi_control_flags = MVTWSI_CONTROL_TWSIEN;
+
+/*
+ * Assert the START condition, either in a single I2C transaction
+ * or inside back-to-back ones (repeated starts).
+ */
+static int twsi_start(int expected_status)
+{
+ /* globally set TWSIEN in case it was not */
+ twsi_control_flags |= MVTWSI_CONTROL_TWSIEN;
+ /* assert START */
+ writel(twsi_control_flags | MVTWSI_CONTROL_START, &twsi->control);
+ /* wait for controller to process START */
+ return twsi_wait(expected_status);
+}
+
+/*
+ * Send a byte (i2c address or data).
+ */
+static int twsi_send(u8 byte, int expected_status)
+{
+ /* put byte in data register for sending */
+ writel(byte, &twsi->data);
+ /* clear any pending interrupt -- that'll cause sending */
+ writel(twsi_control_flags, &twsi->control);
+ /* wait for controller to receive byte and check ACK */
+ return twsi_wait(expected_status);
+}
+
+/*
+ * Receive a byte.
+ * Global mvtwsi_control_flags variable says if we should ack or nak.
+ */
+static int twsi_recv(u8 *byte)
+{
+ int expected_status, status;
+
+ /* compute expected status based on ACK bit in global control flags */
+ if (twsi_control_flags & MVTWSI_CONTROL_ACK)
+ expected_status = MVTWSI_STATUS_DATA_R_ACK;
+ else
+ expected_status = MVTWSI_STATUS_DATA_R_NAK;
+ /* acknowledge *previous state* and launch receive */
+ writel(twsi_control_flags, &twsi->control);
+ /* wait for controller to receive byte and assert ACK or NAK */
+ status = twsi_wait(expected_status);
+ /* if we did receive expected byte then store it */
+ if (status == 0)
+ *byte = readl(&twsi->data);
+ /* return status */
+ return status;
+}
+
+/*
+ * Assert the STOP condition.
+ * This is also used to force the bus back in idle (SDA=SCL=1).
+ */
+static int twsi_stop(int status)
+{
+ int control, stop_status;
+ int timeout = 1000;
+
+ /* assert STOP */
+ control = MVTWSI_CONTROL_TWSIEN | MVTWSI_CONTROL_STOP;
+ writel(control, &twsi->control);
+ /* wait for IDLE; IFLG won't rise so twsi_wait() is no use. */
+ do {
+ stop_status = readl(&twsi->status);
+ if (stop_status == MVTWSI_STATUS_IDLE)
+ break;
+ udelay(10); /* one clock cycle at 100 kHz */
+ } while (timeout--);
+ control = readl(&twsi->control);
+ if (stop_status != MVTWSI_STATUS_IDLE)
+ if (status == 0)
+ status = MVTWSI_ERROR(
+ MVTWSI_ERROR_TIMEOUT,
+ control, status, MVTWSI_STATUS_IDLE);
+ return status;
+}
+
+/*
+ * Ugly formula to convert m and n values to a frequency comes from
+ * TWSI specifications
+ */
+
+#define TWSI_FREQUENCY(m, n) \
+ ((u8) (CONFIG_SYS_TCLK / (10 * (m + 1) * 2 * (1 << n))))
+
+/*
+ * These are required to be reprogrammed before enabling the controller
+ * because a reset loses them.
+ * Default values come from the spec, but a twsi_reset will change them.
+ * twsi_slave_address left uninitialized lest checkpatch.pl complains.
+ */
+
+/* Baudrate generator: m (bits 7..4) =4, n (bits 3..0) =4 */
+static u8 twsi_baud_rate = 0x44; /* baudrate at controller reset */
+/* Default frequency corresponding to default m=4, n=4 */
+static u8 twsi_actual_speed = TWSI_FREQUENCY(4, 4);
+/* Default slave address is 0 (so is an uninitialized static) */
+static u8 twsi_slave_address;
+
+/*
+ * Reset controller.
+ * Called at end of i2c_init unsuccessful i2c transactions.
+ * Controller reset also resets the baud rate and slave address, so
+ * re-establish them.
+ */
+static void twsi_reset(void)
+{
+ /* ensure controller will be enabled by any twsi*() function */
+ twsi_control_flags = MVTWSI_CONTROL_TWSIEN;
+ /* reset controller */
+ writel(0, &twsi->soft_reset);
+ /* wait 2 ms -- this is what the Marvell LSP does */
+ udelay(20000);
+ /* set baud rate */
+ writel(twsi_baud_rate, &twsi->baudrate);
+ /* set slave address even though we don't use it */
+ writel(twsi_slave_address, &twsi->slave_address);
+ writel(0, &twsi->xtnd_slave_addr);
+ /* assert STOP but don't care for the result */
+ (void) twsi_stop(0);
+}
+
+/*
+ * I2C init called by cmd_i2c when doing 'i2c reset'.
+ * Sets baud to the highest possible value not exceeding requested one.
+ */
+void i2c_init(int requested_speed, int slaveadd)
+{
+ int tmp_speed, highest_speed, n, m;
+ int baud = 0x44; /* baudrate at controller reset */
+
+ /* use actual speed to collect progressively higher values */
+ highest_speed = 0;
+ /* compute m, n setting for highest speed not above requested speed */
+ for (n = 0; n < 8; n++) {
+ for (m = 0; m < 16; m++) {
+ tmp_speed = TWSI_FREQUENCY(m, n);
+ if ((tmp_speed <= requested_speed)
+ && (tmp_speed > highest_speed)) {
+ highest_speed = tmp_speed;
+ baud = (m << 3) | n;
+ }
+ }
+ }
+ /* save baud rate and slave for later calls to twsi_reset */
+ twsi_baud_rate = baud;
+ twsi_actual_speed = highest_speed;
+ twsi_slave_address = slaveadd;
+ /* reset controller */
+ twsi_reset();
+}
+
+/*
+ * Begin I2C transaction with expected start status, at given address.
+ * Common to i2c_probe, i2c_read and i2c_write.
+ * Expected address status will derive from direction bit (bit 0) in addr.
+ */
+static int i2c_begin(int expected_start_status, u8 addr)
+{
+ int status, expected_addr_status;
+
+ /* compute expected address status from direction bit in addr */
+ if (addr & 1) /* reading */
+ expected_addr_status = MVTWSI_STATUS_ADDR_R_ACK;
+ else /* writing */
+ expected_addr_status = MVTWSI_STATUS_ADDR_W_ACK;
+ /* assert START */
+ status = twsi_start(expected_start_status);
+ /* send out the address if the start went well */
+ if (status == 0)
+ status = twsi_send(addr, expected_addr_status);
+ /* return ok or status of first failure to caller */
+ return status;
+}
+
+/*
+ * I2C probe called by cmd_i2c when doing 'i2c probe'.
+ * Begin read, nak data byte, end.
+ */
+int i2c_probe(uchar chip)
+{
+ u8 dummy_byte;
+ int status;
+
+ /* begin i2c read */
+ status = i2c_begin(MVTWSI_STATUS_START, (chip << 1) | 1);
+ /* dummy read was accepted: receive byte but NAK it. */
+ if (status == 0)
+ status = twsi_recv(&dummy_byte);
+ /* Stop transaction */
+ twsi_stop(0);
+ /* return 0 or status of first failure */
+ return status;
+}
+
+/*
+ * I2C read called by cmd_i2c when doing 'i2c read' and by cmd_eeprom.c
+ * Begin write, send address byte(s), begin read, receive data bytes, end.
+ *
+ * NOTE: some EEPROMS want a stop right before the second start, while
+ * some will choke if it is there. Deciding which we should do is eeprom
+ * stuff, not i2c, but at the moment the APIs won't let us put it in
+ * cmd_eeprom, so we have to choose here, and for the moment that'll be
+ * a repeated start without a preceding stop.
+ */
+int i2c_read(u8 dev, uint addr, int alen, u8 *data, int length)
+{
+ int status;
+
+ /* begin i2c write to send the address bytes */
+ status = i2c_begin(MVTWSI_STATUS_START, (dev << 1));
+ /* send addr bytes */
+ while ((status == 0) && alen--)
+ status = twsi_send(addr >> (8*alen),
+ MVTWSI_STATUS_DATA_W_ACK);
+ /* begin i2c read to receive eeprom data bytes */
+ if (status == 0)
+ status = i2c_begin(
+ MVTWSI_STATUS_REPEATED_START, (dev << 1) | 1);
+ /* prepare ACK if at least one byte must be received */
+ if (length > 0)
+ twsi_control_flags |= MVTWSI_CONTROL_ACK;
+ /* now receive actual bytes */
+ while ((status == 0) && length--) {
+ /* reset NAK if we if no more to read now */
+ if (length == 0)
+ twsi_control_flags &= ~MVTWSI_CONTROL_ACK;
+ /* read current byte */
+ status = twsi_recv(data++);
+ }
+ /* Stop transaction */
+ status = twsi_stop(status);
+ /* return 0 or status of first failure */
+ return status;
+}
+
+/*
+ * I2C write called by cmd_i2c when doing 'i2c write' and by cmd_eeprom.c
+ * Begin write, send address byte(s), send data bytes, end.
+ */
+int i2c_write(u8 dev, uint addr, int alen, u8 *data, int length)
+{
+ int status;
+
+ /* begin i2c write to send the eeprom adress bytes then data bytes */
+ status = i2c_begin(MVTWSI_STATUS_START, (dev << 1));
+ /* send addr bytes */
+ while ((status == 0) && alen--)
+ status = twsi_send(addr >> (8*alen),
+ MVTWSI_STATUS_DATA_W_ACK);
+ /* send data bytes */
+ while ((status == 0) && (length-- > 0))
+ status = twsi_send(*(data++), MVTWSI_STATUS_DATA_W_ACK);
+ /* Stop transaction */
+ status = twsi_stop(status);
+ /* return 0 or status of first failure */
+ return status;
+}
+
+/*
+ * Bus set routine: we only support bus 0.
+ */
+int i2c_set_bus_num(unsigned int bus)
+{
+ if (bus > 0) {
+ return -1;
+ }
+ return 0;
+}
+
+/*
+ * Bus get routine: hard-return bus 0.
+ */
+unsigned int i2c_get_bus_num(void)
+{
+ return 0;
+}
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
-#ifndef _OMAP24XX_I2C_H_
-#define _OMAP24XX_I2C_H_
+#ifndef _OMAP2PLUS_I2C_H_
+#define _OMAP2PLUS_I2C_H_
/* I2C masks */
#define CONFIG_SYS_SDRAM_BASE CONFIG_SYS_DDR_SDRAM_BASE
#define CONFIG_DIMM_SLOTS_PER_CTLR 1
-#define CONFIG_CHIP_SELECTS_PER_CTRL (2 * CONFIG_DIMM_SLOTS_PER_CTLR)
+#define CONFIG_CHIP_SELECTS_PER_CTRL (4 * CONFIG_DIMM_SLOTS_PER_CTLR)
#define CONFIG_DDR_SPD
#define CONFIG_FSL_DDR3
*/
#include <config_cmd_default.h>
#define CONFIG_CMD_IDE
+#define CONFIG_CMD_I2C
/*
* Network
/* end of IDE defines */
#endif /* CMD_IDE */
+/*
+ * I2C related stuff
+ */
+#ifdef CONFIG_CMD_I2C
+#define CONFIG_I2C_MVTWSI
+#define CONFIG_I2C_MVTWSI_BASE ORION5X_TWSI_BASE
+#define CONFIG_SYS_I2C_SLAVE 0x0
+#define CONFIG_SYS_I2C_SPEED 100000
+#endif
+
/*
* Environment variables configurations
*/
/*
* I2C related stuff
*/
-#undef CONFIG_HARD_I2C /* I2C with hardware support */
#define CONFIG_SOFT_I2C /* I2C bit-banged */
-#if defined(CONFIG_HARD_I2C)
-#define CONFIG_I2C_KIRKWOOD
-#define CONFIG_I2C_KW_REG_BASE KW_TWSI_BASE
-#define CONFIG_SYS_I2C_SLAVE 0x0
-#define CONFIG_SYS_I2C_SPEED 100000
-#endif
-
#define CONFIG_KIRKWOOD_GPIO /* Enable GPIO Support */
#if defined(CONFIG_SOFT_I2C)
#ifndef __ASSEMBLY__
#define CONFIG_VE8313 1
#define CONFIG_PCI 1
+#define CONFIG_FSL_ELBC 1
#define CONFIG_BOARD_EARLY_INIT_F 1
projects / oweals / u-boot.git / commitdiff