[PATCH 4/7] POWERPC 8xx: platform related changes to the fsl_soc
Vitaly Bordug
vbordug at ru.mvista.com
Thu Jan 25 06:41:15 EST 2007
Added 8xx SoC peripherials: fec for Ethernet and smc for UARTs.
Ordinary routines to extract values from the device tree and insert
respective platform devices
Signed-off-by: Vitaly Bordug <vbordug at ru.mvista.com>
---
arch/powerpc/sysdev/fsl_soc.c | 274 +++++++++++++++++++++++++++++++++++++++++
1 files changed, 272 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index ad31e56..9f2a9a4 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -38,7 +38,8 @@
#include <asm/cpm2.h>
extern void init_fcc_ioports(struct fs_platform_info*);
-extern void init_scc_ioports(struct fs_uart_platform_info*);
+extern void init_fec_ioports(struct fs_platform_info*);
+extern void init_smc_ioports(struct fs_uart_platform_info*);
static phys_addr_t immrbase = -1;
phys_addr_t get_immrbase(void)
@@ -63,7 +64,7 @@ phys_addr_t get_immrbase(void)
EXPORT_SYMBOL(get_immrbase);
-#ifdef CONFIG_CPM2
+#if defined(CONFIG_CPM2) || defined(CONFIG_8xx)
static u32 brgfreq = -1;
@@ -544,6 +545,8 @@ arch_initcall(fsl_usb_of_init);
#ifdef CONFIG_CPM2
+extern void init_scc_ioports(struct fs_uart_platform_info*);
+
static const char fcc_regs[] = "fcc_regs";
static const char fcc_regs_c[] = "fcc_regs_c";
static const char fcc_pram[] = "fcc_pram";
@@ -792,3 +795,270 @@ err:
arch_initcall(cpm_uart_of_init);
#endif /* CONFIG_CPM2 */
+
+#ifdef CONFIG_8xx
+
+extern void init_scc_ioports(struct fs_platform_info*);
+extern int platform_device_skip(char *model, int id);
+
+static int __init fs_enet_mdio_of_init(void)
+{
+ struct device_node *np;
+ unsigned int i;
+ struct platform_device *mdio_dev;
+ struct resource res;
+ int ret;
+
+ for (np = NULL, i = 0;
+ (np = of_find_compatible_node(np, "mdio", "fs_enet")) != NULL;
+ i++) {
+ struct fs_mii_fec_platform_info mdio_data;
+
+ memset(&res, 0, sizeof(res));
+ memset(&mdio_data, 0, sizeof(mdio_data));
+
+ ret = of_address_to_resource(np, 0, &res);
+ if (ret)
+ goto err;
+
+ mdio_dev =
+ platform_device_register_simple("fsl-cpm-fec-mdio",
+ res.start, &res, 1);
+ if (IS_ERR(mdio_dev)) {
+ ret = PTR_ERR(mdio_dev);
+ goto err;
+ }
+
+ mdio_data.mii_speed = ((((ppc_proc_freq + 4999999) / 2500000) / 2) & 0x3F) << 1;
+
+ ret =
+ platform_device_add_data(mdio_dev, &mdio_data,
+ sizeof(struct fs_mii_fec_platform_info));
+ if (ret)
+ goto unreg;
+ }
+ return 0;
+
+unreg:
+ platform_device_unregister(mdio_dev);
+err:
+ return ret;
+}
+
+arch_initcall(fs_enet_mdio_of_init);
+
+static const char *enet_regs = "regs";
+static const char *enet_pram = "pram";
+static const char *enet_irq = "interrupt";
+static char bus_id[9][BUS_ID_SIZE];
+
+static int __init fs_enet_of_init(void)
+{
+ struct device_node *np;
+ unsigned int i;
+ struct platform_device *fs_enet_dev = NULL;
+ struct resource res;
+ int ret;
+
+ for (np = NULL, i = 0;
+ (np = of_find_compatible_node(np, "network", "fs_enet")) != NULL;
+ i++) {
+ struct resource r[4];
+ struct device_node *phy = NULL, *mdio = NULL;
+ struct fs_platform_info fs_enet_data;
+ unsigned int *id, *phy_addr;
+ void *mac_addr;
+ phandle *ph;
+ char *model;
+
+ memset(r, 0, sizeof(r));
+ memset(&fs_enet_data, 0, sizeof(fs_enet_data));
+
+ model = (char *)get_property(np, "model", NULL);
+ if (model == NULL) {
+ ret = -ENODEV;
+ goto unreg;
+ }
+
+ id = (u32 *) get_property(np, "device-id", NULL);
+ fs_enet_data.fs_no = *id;
+
+ if (platform_device_skip(model, *id))
+ continue;
+
+ ret = of_address_to_resource(np, 0, &r[0]);
+ if (ret)
+ goto err;
+ r[0].name = enet_regs;
+
+ mac_addr = (void *)get_property(np, "mac-address", NULL);
+ memcpy(fs_enet_data.macaddr, mac_addr, 6);
+
+ ph = (phandle *) get_property(np, "phy-handle", NULL);
+ if (ph != NULL)
+ phy = of_find_node_by_phandle(*ph);
+
+ if (phy != NULL) {
+ phy_addr = (u32 *) get_property(phy, "reg", NULL);
+ fs_enet_data.phy_addr = *phy_addr;
+ fs_enet_data.has_phy = 1;
+
+ mdio = of_get_parent(phy);
+ ret = of_address_to_resource(mdio, 0, &res);
+ if (ret) {
+ of_node_put(phy);
+ of_node_put(mdio);
+ goto unreg;
+ }
+ }
+
+ model = (char*)get_property(np, "model", NULL);
+ strcpy(fs_enet_data.fs_type, model);
+
+ if (strstr(model, "FEC")) {
+ r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
+ r[1].flags = IORESOURCE_IRQ;
+ r[1].name = enet_irq;
+
+ fs_enet_dev =
+ platform_device_register_simple("fsl-cpm-fec", i, &r[0], 2);
+
+ if (IS_ERR(fs_enet_dev)) {
+ ret = PTR_ERR(fs_enet_dev);
+ goto err;
+ }
+
+ fs_enet_data.rx_ring = 128;
+ fs_enet_data.tx_ring = 16;
+ fs_enet_data.rx_copybreak = 240;
+ fs_enet_data.use_napi = 1;
+ fs_enet_data.napi_weight = 17;
+
+ snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%x:%02x",
+ (u32)res.start, fs_enet_data.phy_addr);
+ fs_enet_data.bus_id = (char*)&bus_id[i];
+ fs_enet_data.init_ioports = init_fec_ioports;
+ }
+ if (strstr(model, "SCC")) {
+ ret = of_address_to_resource(np, 1, &r[1]);
+ if (ret)
+ goto err;
+ r[1].name = enet_pram;
+
+ r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
+ r[2].flags = IORESOURCE_IRQ;
+ r[2].name = enet_irq;
+
+ fs_enet_dev =
+ platform_device_register_simple("fsl-cpm-scc", i, &r[0], 3);
+
+ if (IS_ERR(fs_enet_dev)) {
+ ret = PTR_ERR(fs_enet_dev);
+ goto err;
+ }
+
+ fs_enet_data.rx_ring = 64;
+ fs_enet_data.tx_ring = 8;
+ fs_enet_data.rx_copybreak = 240;
+ fs_enet_data.use_napi = 1;
+ fs_enet_data.napi_weight = 17;
+
+ snprintf((char*)&bus_id[i], BUS_ID_SIZE, "%s", "fixed at 10:1");
+ fs_enet_data.bus_id = (char*)&bus_id[i];
+ fs_enet_data.init_ioports = init_scc_ioports;
+ }
+
+ of_node_put(phy);
+ of_node_put(mdio);
+
+ ret = platform_device_add_data(fs_enet_dev, &fs_enet_data,
+ sizeof(struct
+ fs_platform_info));
+ if (ret)
+ goto unreg;
+ }
+ return 0;
+
+unreg:
+ platform_device_unregister(fs_enet_dev);
+err:
+ return ret;
+}
+
+arch_initcall(fs_enet_of_init);
+
+
+static const char *smc_regs = "regs";
+static const char *smc_pram = "pram";
+
+static int __init cpm_smc_uart_of_init(void)
+{
+ struct device_node *np;
+ unsigned int i;
+ struct platform_device *cpm_uart_dev;
+ int ret;
+
+ for (np = NULL, i = 0;
+ (np = of_find_compatible_node(np, "serial", "cpm_uart")) != NULL;
+ i++) {
+ struct resource r[3];
+ struct fs_uart_platform_info cpm_uart_data;
+ int *id;
+ char *model;
+
+ memset(r, 0, sizeof(r));
+ memset(&cpm_uart_data, 0, sizeof(cpm_uart_data));
+
+ ret = of_address_to_resource(np, 0, &r[0]);
+ if (ret)
+ goto err;
+
+ r[0].name = smc_regs;
+
+ ret = of_address_to_resource(np, 1, &r[1]);
+ if (ret)
+ goto err;
+ r[1].name = smc_pram;
+
+ r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
+ r[2].flags = IORESOURCE_IRQ;
+
+ cpm_uart_dev =
+ platform_device_register_simple("fsl-cpm-smc:uart", i, &r[0], 3);
+
+ if (IS_ERR(cpm_uart_dev)) {
+ ret = PTR_ERR(cpm_uart_dev);
+ goto err;
+ }
+
+ model = (char*)get_property(np, "model", NULL);
+ strcpy(cpm_uart_data.fs_type, model);
+
+ id = (int*)get_property(np, "device-id", NULL);
+ cpm_uart_data.fs_no = *id;
+ cpm_uart_data.uart_clk = ppc_proc_freq;
+
+ cpm_uart_data.tx_num_fifo = 4;
+ cpm_uart_data.tx_buf_size = 32;
+ cpm_uart_data.rx_num_fifo = 4;
+ cpm_uart_data.rx_buf_size = 32;
+
+ ret =
+ platform_device_add_data(cpm_uart_dev, &cpm_uart_data,
+ sizeof(struct
+ fs_uart_platform_info));
+ if (ret)
+ goto unreg;
+ }
+
+ return 0;
+
+unreg:
+ platform_device_unregister(cpm_uart_dev);
+err:
+ return ret;
+}
+
+arch_initcall(cpm_smc_uart_of_init);
+
+#endif /* CONFIG_8xx */
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