openwrt/target/linux/ppc40x/patches-2.6.30/102-openrb-light-cf-card-fi...

40 lines
1.1 KiB
Diff

--- a/arch/powerpc/boot/cuboot-openrb-light.c
+++ b/arch/powerpc/boot/cuboot-openrb-light.c
@@ -22,8 +22,36 @@
static bd_t bd;
+static void fixup_cf_card(void)
+{
+#define DCRN_CPC0_PCI_BASE 0xf9
+#define CF_CS0_BASE 0xff100000
+#define CF_CS1_BASE 0xff200000
+
+ /* Turn on PerWE instead of PCIsomething */
+ mtdcr(DCRN_CPC0_PCI_BASE,
+ mfdcr(DCRN_CPC0_PCI_BASE) | (0x80000000L >> 27));
+
+ /* PerCS1 (CF's CS0): base 0xff100000, 16-bit, rw */
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B1CR);
+ mtdcr(DCRN_EBC0_CFGDATA, CF_CS0_BASE | EBC_BXCR_BU_RW | EBC_BXCR_BW_16);
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B1AP);
+ mtdcr(DCRN_EBC0_CFGDATA, 0x080bd800);
+
+ /* PerCS2 (CF's CS1): base 0xff200000, 16-bit, rw */
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B2CR);
+ mtdcr(DCRN_EBC0_CFGDATA, CF_CS1_BASE | EBC_BXCR_BU_RW | EBC_BXCR_BW_16);
+ mtdcr(DCRN_EBC0_CFGADDR, EBC_B2AP);
+ mtdcr(DCRN_EBC0_CFGDATA, 0x080bd800);
+
+#undef DCRN_CPC0_PCI_BASE
+#undef CF_CS0_BASE
+#undef CF_CS1_BASE
+}
+
static void openrb_light_fixups(void)
{
+ fixup_cf_card();
ibm405ep_fixup_clocks(33333000);
ibm4xx_sdram_fixup_memsize();
dt_fixup_mac_addresses(&bd.bi_enetaddr, &bd.bi_enet1addr);