Signed-off-by: Anton Vorontsov <[EMAIL PROTECTED]>
---
arch/powerpc/sysdev/fsl_soc.c | 88 +++++++++++++++++++++++++++++++++++++++++
arch/powerpc/sysdev/fsl_soc.h | 12 ++++++
2 files changed, 100 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index 727453d..0771700 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -23,6 +23,7 @@
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/phy.h>
+#include <linux/spi/spi.h>
#include <linux/fsl_devices.h>
#include <linux/fs_enet_pd.h>
#include <linux/fs_uart_pd.h>
@@ -1186,3 +1187,90 @@ err:
arch_initcall(cpm_smc_uart_of_init);
#endif /* CONFIG_8xx */
+
+int fsl_spi_init(struct fsl_spi_board_info *binfo)
+{
+ struct device_node *np;
+ unsigned int i;
+ u32 sysclk;
+
+ np = of_find_node_by_type(NULL, "qe");
+ if (!np)
+ return -ENODEV;
+
+ sysclk = *(u32 *)of_get_property(np, "bus-frequency", NULL);
+
+ for (np = NULL, i = 1;
+ (np = of_find_compatible_node(np, "spi", "fsl_spi")) != NULL;
+ i++) {
+ int ret = 0;
+ unsigned int j;
+ const char *devid;
+ const char *mode;
+ struct resource res[2];
+ struct platform_device *pdev = NULL;
+ struct fsl_spi_platform_data pdata = {
+ .activate_cs = binfo->activate_cs,
+ .deactivate_cs = binfo->deactivate_cs,
+ };
+
+ memset(res, 0, sizeof(res));
+
+ devid = of_get_property(np, "fsl,device-id", NULL);
+ mode = of_get_property(np, "mode", NULL);
+ if (!devid || !mode)
+ goto err;
+
+ pdata.sysclk = sysclk;
+ pdata.bus_num = *(u32 *)devid;
+
+ for (j = 0; j < binfo->num_board_infos; j++) {
+ if (binfo->board_infos[j].bus_num == pdata.bus_num)
+ pdata.max_chipselect++;
+ }
+
+ if (!pdata.max_chipselect)
+ goto err;
+
+ if (!strcmp(mode, "cpu-qe"))
+ pdata.qe_mode = 1;
+
+ ret = of_address_to_resource(np, 0, &res[0]);
+ if (ret)
+ goto err;
+
+ res[1].start = res[2].end = irq_of_parse_and_map(np, 0);
+ if (res[1].start == NO_IRQ)
+ goto err;
+
+ res[1].name = "mpc83xx_spi";
+ res[1].flags = IORESOURCE_IRQ;;
+
+ pdev = platform_device_alloc("mpc83xx_spi", i);
+ if (!pdev)
+ goto err;
+
+ ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_add_resources(pdev, res,
+ ARRAY_SIZE(res));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_register(pdev);
+ if (ret)
+ goto unreg;
+
+ continue;
+unreg:
+ platform_device_del(pdev);
+err:
+ continue;
+ }
+
+ return spi_register_board_info(binfo->board_infos,
+ binfo->num_board_infos);
+}
+EXPORT_SYMBOL(fsl_spi_init);
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index 04e145b..a83998d 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -8,5 +8,17 @@ extern phys_addr_t get_immrbase(void);
extern u32 get_brgfreq(void);
extern u32 get_baudrate(void);
+struct spi_board_info;
+
+struct fsl_spi_board_info {
+ struct spi_board_info *board_infos;
+ unsigned int num_board_infos;
+
+ void (*activate_cs)(u8 cs, u8 polarity);
+ void (*deactivate_cs)(u8 cs, u8 polarity);
+};
+
+extern int fsl_spi_init(struct fsl_spi_board_info *info);
+
#endif
#endif
--
1.5.0.6
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