summaryrefslogtreecommitdiff
path: root/target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch')
-rw-r--r--target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch166
1 files changed, 0 insertions, 166 deletions
diff --git a/target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch b/target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch
deleted file mode 100644
index 5ff1cb8..0000000
--- a/target/linux/ar71xx/patches-3.18/523-MIPS-ath79-OTP-support.patch
+++ /dev/null
@@ -1,166 +0,0 @@
---- a/arch/mips/ath79/dev-wmac.c
-+++ b/arch/mips/ath79/dev-wmac.c
-@@ -165,6 +165,137 @@ static void qca955x_wmac_setup(void)
- ath79_wmac_data.is_clk_25mhz = true;
- }
-
-+static bool __init
-+ar93xx_wmac_otp_read_word(void __iomem *base, int addr, u32 *data)
-+{
-+ int timeout = 1000;
-+ u32 val;
-+
-+ __raw_readl(base + AR9300_OTP_BASE + (4 * addr));
-+ while (timeout--) {
-+ val = __raw_readl(base + AR9300_OTP_STATUS);
-+ if ((val & AR9300_OTP_STATUS_TYPE) == AR9300_OTP_STATUS_VALID)
-+ break;
-+
-+ udelay(10);
-+ }
-+
-+ if (!timeout)
-+ return false;
-+
-+ *data = __raw_readl(base + AR9300_OTP_READ_DATA);
-+ return true;
-+}
-+
-+static bool __init
-+ar93xx_wmac_otp_read(void __iomem *base, int addr, u8 *dest, int len)
-+{
-+ u32 data;
-+ int i;
-+
-+ for (i = 0; i < len; i++) {
-+ int offset = 8 * ((addr - i) % 4);
-+
-+ if (!ar93xx_wmac_otp_read_word(base, (addr - i) / 4, &data))
-+ return false;
-+
-+ dest[i] = (data >> offset) & 0xff;
-+ }
-+
-+ return true;
-+}
-+
-+static bool __init
-+ar93xx_wmac_otp_uncompress(void __iomem *base, int addr, int len, u8 *dest,
-+ int dest_start, int dest_len)
-+{
-+ int dest_bytes = 0;
-+ int offset = 0;
-+ int end = addr - len;
-+ u8 hdr[2];
-+
-+ while (addr > end) {
-+ if (!ar93xx_wmac_otp_read(base, addr, hdr, 2))
-+ return false;
-+
-+ addr -= 2;
-+ offset += hdr[0];
-+
-+ if (offset <= dest_start + dest_len &&
-+ offset + len >= dest_start) {
-+ int data_offset = 0;
-+ int dest_offset = 0;
-+ int copy_len;
-+
-+ if (offset < dest_start)
-+ data_offset = dest_start - offset;
-+ else
-+ dest_offset = offset - dest_start;
-+
-+ copy_len = len - data_offset;
-+ if (copy_len > dest_len - dest_offset)
-+ copy_len = dest_len - dest_offset;
-+
-+ ar93xx_wmac_otp_read(base, addr - data_offset,
-+ dest + dest_offset,
-+ copy_len);
-+
-+ dest_bytes += copy_len;
-+ }
-+ addr -= hdr[1];
-+ }
-+ return !!dest_bytes;
-+}
-+
-+bool __init ar93xx_wmac_read_mac_address(u8 *dest)
-+{
-+ void __iomem *base;
-+ bool ret = false;
-+ int addr = 0x1ff;
-+ unsigned int len;
-+ u32 hdr_u32;
-+ u8 *hdr = (u8 *) &hdr_u32;
-+ u8 mac[6] = { 0x00, 0x02, 0x03, 0x04, 0x05, 0x06 };
-+ int mac_start = 2, mac_end = 8;
-+
-+ BUG_ON(!soc_is_ar933x() && !soc_is_ar934x());
-+ base = ioremap_nocache(AR933X_WMAC_BASE, AR933X_WMAC_SIZE);
-+ while (addr > sizeof(hdr)) {
-+ if (!ar93xx_wmac_otp_read(base, addr, hdr, sizeof(hdr)))
-+ break;
-+
-+ if (hdr_u32 == 0 || hdr_u32 == ~0)
-+ break;
-+
-+ len = (hdr[1] << 4) | (hdr[2] >> 4);
-+ addr -= 4;
-+
-+ switch (hdr[0] >> 5) {
-+ case 0:
-+ if (len < mac_end)
-+ break;
-+
-+ ar93xx_wmac_otp_read(base, addr - mac_start, mac, 6);
-+ ret = true;
-+ break;
-+ case 3:
-+ ret |= ar93xx_wmac_otp_uncompress(base, addr, len, mac,
-+ mac_start, 6);
-+ break;
-+ default:
-+ break;
-+ }
-+
-+ addr -= len + 2;
-+ }
-+
-+ iounmap(base);
-+ if (ret)
-+ memcpy(dest, mac, 6);
-+
-+ return ret;
-+}
-+
- void __init ath79_register_wmac(u8 *cal_data, u8 *mac_addr)
- {
- if (soc_is_ar913x())
---- a/arch/mips/ath79/dev-wmac.h
-+++ b/arch/mips/ath79/dev-wmac.h
-@@ -14,5 +14,6 @@
-
- void ath79_register_wmac(u8 *cal_data, u8 *mac_addr);
- void ath79_register_wmac_simple(void);
-+bool ar93xx_wmac_read_mac_address(u8 *dest);
-
- #endif /* _ATH79_DEV_WMAC_H */
---- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
-+++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
-@@ -112,6 +112,14 @@
- #define QCA955X_EHCI1_BASE 0x1b400000
- #define QCA955X_EHCI_SIZE 0x1000
-
-+#define AR9300_OTP_BASE 0x14000
-+#define AR9300_OTP_STATUS 0x15f18
-+#define AR9300_OTP_STATUS_TYPE 0x7
-+#define AR9300_OTP_STATUS_VALID 0x4
-+#define AR9300_OTP_STATUS_ACCESS_BUSY 0x2
-+#define AR9300_OTP_STATUS_SM_BUSY 0x1
-+#define AR9300_OTP_READ_DATA 0x15f1c
-+
- /*
- * DDR_CTRL block
- */