diff options
Diffstat (limited to 'target/linux/orion/patches/015-implement_power-off_method_for_kurobox_pro.patch')
| -rw-r--r-- | target/linux/orion/patches/015-implement_power-off_method_for_kurobox_pro.patch | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/target/linux/orion/patches/015-implement_power-off_method_for_kurobox_pro.patch b/target/linux/orion/patches/015-implement_power-off_method_for_kurobox_pro.patch deleted file mode 100644 index 5814852388..0000000000 --- a/target/linux/orion/patches/015-implement_power-off_method_for_kurobox_pro.patch +++ /dev/null @@ -1,192 +0,0 @@ -From: Sylver Bruneau <sylver.bruneau@googlemail.com> - -This patch implements the communication with the microcontroller on the -Kurobox Pro and Linkstation Pro/Live boards. This is allowing to send -the commands needed to power-off the board correctly. - -Signed-off-by: Sylver Bruneau <sylver.bruneau@googlemail.com> ---- - arch/arm/mach-orion5x/kurobox_pro-setup.c | 147 ++++++++++++++++++++++++++++- - 1 files changed, 143 insertions(+), 4 deletions(-) - ---- a/arch/arm/mach-orion5x/kurobox_pro-setup.c -+++ b/arch/arm/mach-orion5x/kurobox_pro-setup.c -@@ -13,10 +13,12 @@ - #include <linux/platform_device.h> - #include <linux/pci.h> - #include <linux/irq.h> -+#include <linux/delay.h> - #include <linux/mtd/physmap.h> - #include <linux/mtd/nand.h> - #include <linux/mv643xx_eth.h> - #include <linux/i2c.h> -+#include <linux/serial_reg.h> - #include <linux/ata_platform.h> - #include <asm/mach-types.h> - #include <asm/gpio.h> -@@ -177,6 +179,140 @@ - }; - - /***************************************************************************** -+ * Kurobox Pro specific power off method via UART1-attached microcontroller -+ ****************************************************************************/ -+ -+#define UART1_REG(x) (UART1_VIRT_BASE + ((UART_##x) << 2)) -+ -+static int kurobox_pro_miconread(unsigned char *buf, int count) -+{ -+ int i; -+ int timeout; -+ -+ for (i = 0; i < count; i++) { -+ timeout = 10; -+ -+ while (!(readl(UART1_REG(LSR)) & UART_LSR_DR)) { -+ if (--timeout == 0) -+ break; -+ udelay(1000); -+ } -+ -+ if (timeout == 0) -+ break; -+ buf[i] = readl(UART1_REG(RX)); -+ } -+ -+ /* return read bytes */ -+ return i; -+} -+ -+static int kurobox_pro_miconwrite(const unsigned char *buf, int count) -+{ -+ int i = 0; -+ -+ while (count--) { -+ while (!(readl(UART1_REG(LSR)) & UART_LSR_THRE)) -+ barrier(); -+ writel(buf[i++], UART1_REG(TX)); -+ } -+ -+ return 0; -+} -+ -+static int kurobox_pro_miconsend(const unsigned char *data, int count) -+{ -+ int i; -+ unsigned char checksum = 0; -+ unsigned char recv_buf[40]; -+ unsigned char send_buf[40]; -+ unsigned char correct_ack[3]; -+ int retry = 2; -+ -+ /* Generate checksum */ -+ for (i = 0; i < count; i++) -+ checksum -= data[i]; -+ -+ do { -+ /* Send data */ -+ kurobox_pro_miconwrite(data, count); -+ -+ /* send checksum */ -+ kurobox_pro_miconwrite(&checksum, 1); -+ -+ if (kurobox_pro_miconread(recv_buf, sizeof(recv_buf)) <= 3) { -+ printk(KERN_ERR ">%s: receive failed.\n", __func__); -+ -+ /* send preamble to clear the receive buffer */ -+ memset(&send_buf, 0xff, sizeof(send_buf)); -+ kurobox_pro_miconwrite(send_buf, sizeof(send_buf)); -+ -+ /* make dummy reads */ -+ mdelay(100); -+ kurobox_pro_miconread(recv_buf, sizeof(recv_buf)); -+ } else { -+ /* Generate expected ack */ -+ correct_ack[0] = 0x01; -+ correct_ack[1] = data[1]; -+ correct_ack[2] = 0x00; -+ -+ /* checksum Check */ -+ if ((recv_buf[0] + recv_buf[1] + recv_buf[2] + -+ recv_buf[3]) & 0xFF) { -+ printk(KERN_ERR ">%s: Checksum Error : " -+ "Received data[%02x, %02x, %02x, %02x]" -+ "\n", __func__, recv_buf[0], -+ recv_buf[1], recv_buf[2], recv_buf[3]); -+ } else { -+ /* Check Received Data */ -+ if (correct_ack[0] == recv_buf[0] && -+ correct_ack[1] == recv_buf[1] && -+ correct_ack[2] == recv_buf[2]) { -+ /* Interval for next command */ -+ mdelay(10); -+ -+ /* Receive ACK */ -+ return 0; -+ } -+ } -+ /* Received NAK or illegal Data */ -+ printk(KERN_ERR ">%s: Error : NAK or Illegal Data " -+ "Received\n", __func__); -+ } -+ } while (retry--); -+ -+ /* Interval for next command */ -+ mdelay(10); -+ -+ return -1; -+} -+ -+static void kurobox_pro_power_off(void) -+{ -+ const unsigned char watchdogkill[] = {0x01, 0x35, 0x00}; -+ const unsigned char shutdownwait[] = {0x00, 0x0c}; -+ const unsigned char poweroff[] = {0x00, 0x06}; -+ /* 38400 baud divisor */ -+ const unsigned divisor = ((ORION5X_TCLK + (8 * 38400)) / (16 * 38400)); -+ -+ pr_info("%s: triggering power-off...\n", __func__); -+ -+ /* hijack uart1 and reset into sane state (38400,8n1,even parity) */ -+ writel(0x83, UART1_REG(LCR)); -+ writel(divisor & 0xff, UART1_REG(DLL)); -+ writel((divisor >> 8) & 0xff, UART1_REG(DLM)); -+ writel(0x1b, UART1_REG(LCR)); -+ writel(0x00, UART1_REG(IER)); -+ writel(0x07, UART1_REG(FCR)); -+ writel(0x00, UART1_REG(MCR)); -+ -+ /* Send the commands to shutdown the Kurobox Pro */ -+ kurobox_pro_miconsend(watchdogkill, sizeof(watchdogkill)) ; -+ kurobox_pro_miconsend(shutdownwait, sizeof(shutdownwait)) ; -+ kurobox_pro_miconsend(poweroff, sizeof(poweroff)); -+} -+ -+/***************************************************************************** - * General Setup - ****************************************************************************/ - -@@ -203,10 +339,10 @@ - orion5x_mpp_conf(13, MPP_SATA_LED); /* SATA 1 presence */ - orion5x_mpp_conf(14, MPP_SATA_LED); /* SATA 0 active */ - orion5x_mpp_conf(15, MPP_SATA_LED); /* SATA 1 active */ -- orion5x_mpp_conf(16, MPP_UNUSED); -- orion5x_mpp_conf(17, MPP_UNUSED); -- orion5x_mpp_conf(18, MPP_UNUSED); -- orion5x_mpp_conf(19, MPP_UNUSED); -+ orion5x_mpp_conf(16, MPP_UART); /* UART1 RXD */ -+ orion5x_mpp_conf(17, MPP_UART); /* UART1 TXD */ -+ orion5x_mpp_conf(18, MPP_UART); /* UART1 CTSn */ -+ orion5x_mpp_conf(19, MPP_UART); /* UART1 RTSn */ - - /* - * Configure peripherals. -@@ -229,6 +365,9 @@ - } - - i2c_register_board_info(0, &kurobox_pro_i2c_rtc, 1); -+ -+ /* register Kurobox Pro specific power-off method */ -+ pm_power_off = kurobox_pro_power_off; - } - - #ifdef CONFIG_MACH_KUROBOX_PRO |