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authorAnton Vorontsov <avorontsov@ru.mvista.com>2009-09-16 23:21:59 +0400
committerKim Phillips <kim.phillips@freescale.com>2009-09-25 18:25:51 -0500
commit89da44ce3fe1638312d71cb3add8c6a6d2c7c1f3 (patch)
treea651da0d6183aac6d69688d4a4e0aa5e595fbe02 /board
parent034477bb31948d698d18b84bc0834c3e25a14d04 (diff)
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mpc83xx: mpc8360emds: Use RGMII-ID mode, add workarounds for rev. 2.1 CPUs
This patch fixes various ethernet issues with gigabit links handling in U-Boot. The workarounds originally implemented by Kim Phillips for Linux kernel. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/mpc8360emds/mpc8360emds.c56
1 files changed, 50 insertions, 6 deletions
diff --git a/board/freescale/mpc8360emds/mpc8360emds.c b/board/freescale/mpc8360emds/mpc8360emds.c
index 769eb2f..54f2989 100644
--- a/board/freescale/mpc8360emds/mpc8360emds.c
+++ b/board/freescale/mpc8360emds/mpc8360emds.c
@@ -21,12 +21,14 @@
#endif
#include <spd_sdram.h>
#include <asm/mmu.h>
+#include <asm/io.h>
#if defined(CONFIG_OF_LIBFDT)
#include <libfdt.h>
#endif
#if defined(CONFIG_PQ_MDS_PIB)
#include "../common/pq-mds-pib.h"
#endif
+#include "../../../drivers/qe/uec.h"
const qe_iop_conf_t qe_iop_conf_tab[] = {
/* GETH1 */
@@ -89,11 +91,19 @@ const qe_iop_conf_t qe_iop_conf_tab[] = {
{0, 0, 0, 0, QE_IOP_TAB_END}, /* END of table */
};
-int board_early_init_f(void)
+/* Handle "mpc8360ea rev.2.1 erratum 2: RGMII Timing"? */
+static int board_handle_erratum2(void)
{
+ const immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
- u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;
+ return REVID_MAJOR(immr->sysconf.spridr) == 2 &&
+ REVID_MINOR(immr->sysconf.spridr) == 1;
+}
+
+int board_early_init_f(void)
+{
const immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
+ u8 *bcsr = (u8 *)CONFIG_SYS_BCSR;
/* Enable flash write */
bcsr[0xa] &= ~0x04;
@@ -105,6 +115,21 @@ int board_early_init_f(void)
/* Enable second UART */
bcsr[0x9] &= ~0x01;
+ if (board_handle_erratum2()) {
+ void *immap = (immap_t *)(CONFIG_SYS_IMMR + 0x14a8);
+
+ /*
+ * IMMR + 0x14A8[4:5] = 11 (clk delay for UCC 2)
+ * IMMR + 0x14A8[18:19] = 11 (clk delay for UCC 1)
+ */
+ setbits_be32(immap, 0x0c003000);
+
+ /*
+ * IMMR + 0x14AC[20:27] = 10101010
+ * (data delay for both UCC's)
+ */
+ clrsetbits_be32(immap + 4, 0xff0, 0xaa0);
+ }
return 0;
}
@@ -116,6 +141,28 @@ int board_early_init_r(void)
return 0;
}
+#ifdef CONFIG_UEC_ETH
+static uec_info_t uec_info[] = {
+#ifdef CONFIG_UEC_ETH1
+ STD_UEC_INFO(1),
+#endif
+#ifdef CONFIG_UEC_ETH2
+ STD_UEC_INFO(2),
+#endif
+};
+
+int board_eth_init(bd_t *bd)
+{
+ if (board_handle_erratum2()) {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(uec_info); i++)
+ uec_info[i].enet_interface = ENET_1000_RGMII_RXID;
+ }
+ return uec_eth_init(bd, uec_info, ARRAY_SIZE(uec_info));
+}
+#endif /* CONFIG_UEC_ETH */
+
#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER)
extern void ddr_enable_ecc(unsigned int dram_size);
#endif
@@ -312,8 +359,6 @@ static int sdram_init(unsigned int base) { return 0; }
#if defined(CONFIG_OF_BOARD_SETUP)
void ft_board_setup(void *blob, bd_t *bd)
{
- const immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
-
ft_cpu_setup(blob, bd);
#ifdef CONFIG_PCI
ft_pci_setup(blob, bd);
@@ -323,8 +368,7 @@ void ft_board_setup(void *blob, bd_t *bd)
* if on mpc8360ea rev. 2.1,
* change both ucc phy-connection-types from rgmii-id to rgmii-rxid
*/
- if ((REVID_MAJOR(immr->sysconf.spridr) == 2) &&
- (REVID_MINOR(immr->sysconf.spridr) == 1)) {
+ if (board_handle_erratum2()) {
int nodeoffset;
const char *prop;
int path;