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Diffstat (limited to 'arch/powerpc/platforms/83xx/km83xx.c')
-rw-r--r--arch/powerpc/platforms/83xx/km83xx.c161
1 files changed, 83 insertions, 78 deletions
diff --git a/arch/powerpc/platforms/83xx/km83xx.c b/arch/powerpc/platforms/83xx/km83xx.c
index 89923d723349..bf4c4473abb9 100644
--- a/arch/powerpc/platforms/83xx/km83xx.c
+++ b/arch/powerpc/platforms/83xx/km83xx.c
@@ -28,8 +28,8 @@
#include <linux/of_device.h>
#include <linux/atomic.h>
-#include <asm/time.h>
-#include <asm/io.h>
+#include <linux/time.h>
+#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/ipic.h>
#include <asm/irq.h>
@@ -43,6 +43,82 @@
#include "mpc83xx.h"
#define SVR_REV(svr) (((svr) >> 0) & 0xFFFF) /* Revision field */
+
+static void quirk_mpc8360e_qe_enet10(void)
+{
+ /*
+ * handle mpc8360E Erratum QE_ENET10:
+ * RGMII AC values do not meet the specification
+ */
+ uint svid = mfspr(SPRN_SVR);
+ struct device_node *np_par;
+ struct resource res;
+ void __iomem *base;
+ int ret;
+
+ np_par = of_find_node_by_name(NULL, "par_io");
+ if (np_par == NULL) {
+ pr_warn("%s couldn;t find par_io node\n", __func__);
+ return;
+ }
+ /* Map Parallel I/O ports registers */
+ ret = of_address_to_resource(np_par, 0, &res);
+ if (ret) {
+ pr_warn("%s couldn;t map par_io registers\n", __func__);
+ return;
+ }
+
+ base = ioremap(res.start, res.end - res.start + 1);
+
+ /*
+ * set output delay adjustments to default values according
+ * table 5 in Errata Rev. 5, 9/2011:
+ *
+ * write 0b01 to UCC1 bits 18:19
+ * write 0b01 to UCC2 option 1 bits 4:5
+ * write 0b01 to UCC2 option 2 bits 16:17
+ */
+ clrsetbits_be32((base + 0xa8), 0x0c00f000, 0x04005000);
+
+ /*
+ * set output delay adjustments to default values according
+ * table 3-13 in Reference Manual Rev.3 05/2010:
+ *
+ * write 0b01 to UCC2 option 2 bits 16:17
+ * write 0b0101 to UCC1 bits 20:23
+ * write 0b0101 to UCC2 option 1 bits 24:27
+ */
+ clrsetbits_be32((base + 0xac), 0x0000cff0, 0x00004550);
+
+ if (SVR_REV(svid) == 0x0021) {
+ /*
+ * UCC2 option 1: write 0b1010 to bits 24:27
+ * at address IMMRBAR+0x14AC
+ */
+ clrsetbits_be32((base + 0xac), 0x000000f0, 0x000000a0);
+ } else if (SVR_REV(svid) == 0x0020) {
+ /*
+ * UCC1: write 0b11 to bits 18:19
+ * at address IMMRBAR+0x14A8
+ */
+ setbits32((base + 0xa8), 0x00003000);
+
+ /*
+ * UCC2 option 1: write 0b11 to bits 4:5
+ * at address IMMRBAR+0x14A8
+ */
+ setbits32((base + 0xa8), 0x0c000000);
+
+ /*
+ * UCC2 option 2: write 0b11 to bits 16:17
+ * at address IMMRBAR+0x14AC
+ */
+ setbits32((base + 0xac), 0x0000c000);
+ }
+ iounmap(base);
+ of_node_put(np_par);
+}
+
/* ************************************************************************
*
* Setup the architecture
@@ -72,84 +148,13 @@ static void __init mpc83xx_km_setup_arch(void)
for_each_node_by_name(np, "ucc")
par_io_of_config(np);
- }
-
- np = of_find_compatible_node(NULL, "network", "ucc_geth");
- if (np != NULL) {
- /*
- * handle mpc8360E Erratum QE_ENET10:
- * RGMII AC values do not meet the specification
- */
- uint svid = mfspr(SPRN_SVR);
- struct device_node *np_par;
- struct resource res;
- void __iomem *base;
- int ret;
-
- np_par = of_find_node_by_name(NULL, "par_io");
- if (np_par == NULL) {
- printk(KERN_WARNING "%s couldn;t find par_io node\n",
- __func__);
- return;
- }
- /* Map Parallel I/O ports registers */
- ret = of_address_to_resource(np_par, 0, &res);
- if (ret) {
- printk(KERN_WARNING "%s couldn;t map par_io registers\n",
- __func__);
- return;
- }
-
- base = ioremap(res.start, res.end - res.start + 1);
-
- /*
- * set output delay adjustments to default values according
- * table 5 in Errata Rev. 5, 9/2011:
- *
- * write 0b01 to UCC1 bits 18:19
- * write 0b01 to UCC2 option 1 bits 4:5
- * write 0b01 to UCC2 option 2 bits 16:17
- */
- clrsetbits_be32((base + 0xa8), 0x0c00f000, 0x04005000);
- /*
- * set output delay adjustments to default values according
- * table 3-13 in Reference Manual Rev.3 05/2010:
- *
- * write 0b01 to UCC2 option 2 bits 16:17
- * write 0b0101 to UCC1 bits 20:23
- * write 0b0101 to UCC2 option 1 bits 24:27
- */
- clrsetbits_be32((base + 0xac), 0x0000cff0, 0x00004550);
-
- if (SVR_REV(svid) == 0x0021) {
- /*
- * UCC2 option 1: write 0b1010 to bits 24:27
- * at address IMMRBAR+0x14AC
- */
- clrsetbits_be32((base + 0xac), 0x000000f0, 0x000000a0);
- } else if (SVR_REV(svid) == 0x0020) {
- /*
- * UCC1: write 0b11 to bits 18:19
- * at address IMMRBAR+0x14A8
- */
- setbits32((base + 0xa8), 0x00003000);
-
- /*
- * UCC2 option 1: write 0b11 to bits 4:5
- * at address IMMRBAR+0x14A8
- */
- setbits32((base + 0xa8), 0x0c000000);
-
- /*
- * UCC2 option 2: write 0b11 to bits 16:17
- * at address IMMRBAR+0x14AC
- */
- setbits32((base + 0xac), 0x0000c000);
+ /* Only apply this quirk when par_io is available */
+ np = of_find_compatible_node(NULL, "network", "ucc_geth");
+ if (np != NULL) {
+ quirk_mpc8360e_qe_enet10();
+ of_node_put(np);
}
- iounmap(base);
- of_node_put(np_par);
- of_node_put(np);
}
#endif /* CONFIG_QUICC_ENGINE */
}